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concrete mender, Concrete Repair

All about Roadware 10 Minute Concrete Mender™

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All about Roadware 10 Minute Concrete Mender™

At Roadware, we encounter many two-component polymer concrete repair products that claim to be similar to Concrete Mender™. One product even calls itself “Quick Mender.” However, these products are primarily polyurea-based and are often too thick to effectively penetrate concrete surfaces. Additionally, they are highly reactive, becoming sticky and gooey just one or two minutes after mixing, making them difficult to trowel. When you look closely, you will notice a significant difference between these alternatives and the genuine Roadware 10 Minute Concrete Mender™.

  • What is Concrete Mender? Proprietary Polyurethane Blend
  • Formulation: Classified
  • Manufacturing: South Saint Paul, Minnesota, USA
  • Origin: NATO program for rapid bomb damage repair on runways.
  • Function: To penetrate deep into concrete cracks, joints, and spalls, creating a structural repair in 10 minutes.
  • Military Use: Classified
  • Civilian Use: Repair cracks, joints, and spalls in commercial, industrial, and civil applications.
  • Service Life: Indefinite
  • Cure Time: 10 Minutes at 70°F (21°C)
  • Distribution: Worldwide Distributor Network

Surface Tension

Surface tension measures a liquid’s ability to overcome its internal friction and penetrate materials such as concrete. Roadware 10 Minute Concrete Mender™ has a surface tension that is one-third that of water, allowing it to enter concrete cracks and fissures more quickly and deeply than water. This low surface tension enables Concrete Mender™ to infiltrate standard bond lines and promotes structural bonding with the concrete’s aggregate.

Low surface tension offers another hidden benefit: it enables Roadware 10 Minute Concrete Mender™ to be mixed with more than two parts sand while still remaining workable and easy to trowel. In contrast, if you try that with a polyurea, you’ll end up with a gooey mess.

Roadware Microdoweling™ Technology

The slab-to-slab micro-doweling action provided by Roadware 10 Minute Concrete Mender effectively links concrete slabs together, securing them in place while allowing for full traffic and dynamic load transfer within just 10 minutes. This micro-doweling action is more compatible with concrete and less reactive in harsh environments compared to poly-coated rebar. Millions of micro-dowels penetrate the slabs, bridging and bonding broken and jointed surfaces side by side. This remarkable technology is suitable for addressing hairline cracks, wide trench cracks, irregular cracks, cured control joints, and variable depth spalls.

In just 10 minutes at 70°F (21°C), this micro-doweled bond achieves compressive and shear strengths equivalent to those of poured and fully cured concrete. As a result, bond-line failures are now a thing of the past. Furthermore, parallel re-cracking, which is often seen when epoxies cure, is eliminated thanks to Roadware’s micro-doweling technology.

An electron microscope is used to see the penetration of Concrete Mender™ into concrete. Microdoweling™

Structural Polyurethane

Roadware 10 Minute Concrete Mender™ is a polyurethane-based material designed to restore the structural integrity and aggregate interlock of distressed concrete. Its low surface tension and low viscosity allow it to penetrate concrete surfaces effectively. The product utilizes cross-linking polymer chains to bond directly to the concrete-aggregate matrix. This bonding action harnesses capillary forces to self-inject polymer chains into the surrounding concrete.

The material is engineered to have a modulus of elasticity that is lower than that of the surrounding concrete, ensuring it does not become brittle over time. Additionally, it can be mixed with manufactured sand to create a polymer concrete that is compatible with Portland Cement Concrete (PCC), enabling effective structural repairs for concrete cracks and spalls.

Advantages: One of the key benefits of this material is its very low surface tension and viscosity, which allows for effective saturation bonding of cracks without significant effort. This characteristic enables the repair process to be straightforward, requiring only minimal preparation, such as removing loose debris from the area before application.

Once applied, if the material is allowed to flow freely to the full depth of the crack, the repair can be classified as structural. To enhance the durability of the repair and prevent issues such as water pooling underneath the slab, it may be advantageous to incorporate manufactured sand or quartz into the mixture. This addition helps to optimize material usage and improve overall stability.

For cracks measuring greater than 0.125 inches in depth, it is recommended to mix the polyurethane with sand at a ratio of two parts sand to one part polyurethane. This not only extends the volume of the repair material but also significantly increases its strength. The inclusion of sand provides the added benefit of aligning the thermal coefficient of expansion of the repair material more closely with that of the surrounding concrete, thereby minimizing the risk of future cracking due to temperature fluctuations.

Another notable advantage of these polyurethanes is their versatility in application temperatures. They can be effectively applied in a wide range of substrate temperatures, making them particularly useful for repairs in freezing conditions and cold storage environments. These materials can even be applied in extremely low temperatures, as low as -30°F (-34°C), ensuring that repairs can be conducted year-round, regardless of weather conditions.

One of the key advantages of this repair material is its fast curing time. Generally, repairs will be fully ready for traffic in about 10 minutes when applied at a temperature of 72°F (22°C). This quick turnaround significantly reduces downtime and facilitates efficient maintenance of surfaces in both commercial and industrial environments.

Toughness

Roadware 10 Minute Concrete Mender™ mixed with sand gets about as hard as concrete, yet its modulus of elasticity is slightly less than concrete so it will move with the slab, not work against it.

Common Uses for 10 Minute Concrete Mender™

  • Spalled control joints and cracks
  • Spalls and holes
  • Delamination repair
  • Uneven slabs and thresholds
Diagram of concrete issues and solutions with Roadware 10 Minute Concrete Mender.
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Crack Injection Using Gravity

Typical crack injection repair techniques involve epoxy, ports, pumps, and pressure to force thick epoxies into a crack. Roadware 10 Minute Concrete Mender™ uses low surface tension to do the same job in less time, with less mess, and better performance.

Pouring bulk 10 Minute Concrete Mender into a pilot hole and crack in a parking garage.
Pouring Concrete Mender™ into drilled cracks in a concrete parking deck.

Easy Floor Crack Injection Using Cartridges

Roadware 10 Minute Concrete Mender can be injected into a wide range of cracks and delaminations using a simple cartridge and special Soft-tip injection mixers. Successful full-depth repairs have been made in 24″ of concrete.

Roadware 10 Minute Concrete Mender with Easy-injection mixer repairing a hairline crack.
Roadware 10 Minute Concrete Mender with Easy-injection mixer repairing a hairline crack.

Vertical Crack Injection

For fast and easy vertical crack injection on walls and structures, we recommend the Gebbie Tech System.

The Gebbie Tech System Transforms Vertical Concrete Wall Repair

  • Comprehensive testing by Opus International Consultants: Repairs have consistently achieved results higher than the manufactured panel.
  • Full training in the system: A step-by-step training video and instructional booklet is included within each kit.
  • Save time and money: Conventional repair methods with epoxy have longer repair times, additional downtime and are more expensive.
  • Use a hand gun: No need for expensive pumps. The Gebbie Tech System uses the cost-effective Roadware 10-Minute Concrete Mender™ hand gun to repair walls.
  • Complete penetration: Due to the composition of Roadware 10-Minute Concrete Mender™, the resin travels easily from the injection point.
  • The approved vertical wall repair system: The Gebbie Tech System is listed in Roadware’s 10 Minute Mender Concrete Data Sheet as the approved method of vertical concrete wall repair.
  • Repairs cracks from a hairline through to quarter inch: Walls are repaired within 2–12 hours depending on temperature and the length of the cracks.

Polishable Repairs

Polishing your floor to a mirror-like finish? Repairs made with Roadware 10 Minute Concrete Mender™ will not smear into the surrounding surface or gum up diamond polishing pads. You can even add natural sand to match the grain and color of the surrounding concrete.

Roadware Concrete Mender™ Off-white can be blended with plain concrete sand and a small amount of Portland cement. This water-thin polyurethane is almost translucent. When nearly any type of dry sand or aggregate is added, it creates a fast-curing, polishable repair that blends with the surrounding concrete. Because the material is almost translucent, it resists shadowing effects from over-banding when applied.

Concrete Mender and sand make a repair in polished concrete.
Concrete Mender and sand make a repair in polished concrete.

Lower Cost

By adding two parts silica or quartz sand to a gallon of Concrete Mender™, you will yield about 2.2 gallons of repair material.

Learn more about using sand with Roadware 10 Minute Concrete Mender.

A gallon of polyurea or epoxy will yield a gallon of repair material. That makes polyurea more expensive to use even at half the material cost. This does not factor in the hidden costs of short repair life, damage to the surrounding concrete caused by premature failure, or the cost of redoing repairs when they fail.

Roadware 10 Minute Concrete Mender yield doubles when adding manufactured sand.
Roadware 10 Minute Concrete Mender yield doubles when adding manufactured sand.

Packaging

Roadware 10 Minute Concrete Mender™ is hand-packed with state-of-the-art packaging materials. They have to be good. The very low viscosity and surface tension require it.

Bulk Application

Concrete Mender™ features an extended working time formula that simplifies bulk mixing. Unlike polyureas that gel quickly, Concrete Mender stays workable and flowable for several minutes, allowing for greater flexibility. This means less product waste, allowing resources to be maximized while achieving effective repairs.

Pin-Point Application

With a Roadware needle-tip mixer, you can apply Concrete Mender™ with pinpoint accuracy, delivering product where it is needed most. Our needles come as small as 1.2mm in diameter. If you can get a fingernail in the crack, we can get some Concrete Mender in there as well.

Use Roadware needle tip injection to repair hairline cracks in concrete floors.
Use Roadware needle tip injection to repair hairline cracks in concrete floors.

Freezers and Cold-Temperature Repairs

Working in the cold? We’re from Minnesota. We know firsthand what it takes to work in freezing temperatures. Roadware 10 Minute Concrete Mender™ can be applied at temperatures below -30°F (-34°C). That is really cold. Exposed flesh will freeze in seconds. That is almost too cold to go ice fishing. Most repair products would freeze solid before curing and quickly fail. Roadware 10 Minute Concrete Mender™ generates its own heat. Curing will take several hours, but you will still get the same great performance.

Concrete crack repair in a freezer with Roadware 10 Minute Concrete Mender.
Concrete crack repair in a freezer with Roadware 10 Minute Concrete Mender.

Colors

Roadware Concrete Mender™ comes in two standard colors: Concrete Grey and natural Off-white. Since a typical repair is made up of two parts sand to one part liquid, the sand color will determine the color of the finished repair. By adding colored quartz sand to Off-white Concrete Mender, you can make custom colors as needed.

Use Concrete Mender Off-white to make your own colored repair by adding different colored sand at the time of application.
Use Concrete Mender Off-white to make your own colored repair by adding different colored sand at the time of application.

Specialty Applications

We also custom-make Concrete Mender in Safety Yellow, Red, Blue, and Black. Use Concrete Mender Yellow to create permanent safety lines and marks in difficult areas like cooler and freezer floors.

Safety

Roadware 10 Minute Concrete Mender™ is completely self-reacting and does not out-gas solvents or VOCs when curing. This material meets FSIS guidelines for work in federally inspected meat and poultry plants.

History

For over twenty years, Roadware 10 Minute Concrete Mender™ has performed without fail in thousands of applications, many times outliving the facility itself.

Utilizing technology developed to repair bomb-damaged runways for NATO, Roadware 10 Minute Concrete Mender™ was reformulated and brought to commercial markets in the early 1990s. You can find us in nearly every industry that has concrete floors, decks, slabs, or surfaces.

Product Information

Roadware 10 Minute Concrete Mender™: View product information

Availability

Roadware 10 Minute Concrete Mender is made in the USA and is available from Roadware authorized distributors and dealers worldwide. Call 1-800-522-7623 or 1-651-457-6122 to find a dealer near you.

Specifications

Concrete Mender™ Data Sheet

 
concrete mender, Concrete Repair, Technical Articles

Repair Today. Coat Today.

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How Roadware 10 Minute Concrete Mender Helps Garage Floor Coating Contractors Save Time and Money

For professional garage floor coating contractors, time spent waiting is time that cannot be spent installing the next floor.

Today’s epoxy, polyurea and polyaspartic coating systems can make it possible to complete garage floors quickly. But there is one part of the installation that can bring a fast-track project to a stop: concrete repair.

Cracks, spalls, pop-outs and damaged control joints often become apparent during grinding and surface preparation. If the repair material requires hours—or overnight—to cure, a project planned as a one-day installation can suddenly become a two-day job.

Roadware 10 Minute Concrete Mender is designed to help eliminate that bottleneck.

For appropriate dormant concrete repairs, Concrete Mender combines very low viscosity with rapid curing. At approximately 70°F, Roadware’s installation instructions indicate that many repairs can be blended after roughly 10–15 minutes and then made ready for coating, polishing or traffic.

For a garage floor coating contractor, that speed can change the economics of the entire job.

Roadware 10 Minute Concrete Mender is used to repair spalled concrete surface prior to coating.
Roadware 10 Minute Concrete Mender Off-white mixed with silica sand is used to repair spalled concrete surface prior to coating.

Prep, Repair and Coat in One Day

A conventional repair process can look something like this:

Prep → Find cracks and damage → Repair → Wait for cure → Delay coating → Return to the job → Finish the floor

The problem isn’t necessarily the cost of the repair material. The real expense can be everything that happens because the crew has to wait.

A fast repair changes the workflow:

Prep → Repair → Grind Flush → Coat — Same Day

Instead of allowing concrete repair to dictate the installation schedule, contractors can potentially incorporate crack and spall repair directly into the normal surface-preparation process and continue into the coating system.

That is especially valuable with fast-curing polyurea and polyaspartic floors. There is little advantage in installing a coating system designed for rapid turnaround if the crew has to wait until tomorrow for the concrete repair underneath it.

Fast coatings need fast concrete repair.

Roadware 10 Minute Concrete Mender Easy Injection used to repair a crack in a garage floor.
Roadware 10 Minute Concrete Mender Easy Injection used to repair a crack in a garage floor.

The Real Savings: Eliminate the Second Day

For a coating contractor, the biggest cost of concrete repair often isn’t the repair material—it’s the time the repair adds to the job.

A slower-curing repair can turn a one-day garage floor installation into a two-day project. That second day can mean another crew mobilization, additional travel, loading and unloading equipment, setup, cleanup and lost production time. It can also occupy a valuable opening on the schedule that could have been used for another revenue-producing project.

Roadware 10 Minute Concrete Mender helps contractors attack those hidden costs.

At approximately 70°F, repairs can be ready for finishing and coating in about 10–15 minutes, creating the opportunity to prep, repair, grind and coat during the same workday.

Instead of paying a crew to return tomorrow, contractors can potentially finish today and move their people, trucks and equipment to the next job.

The potential savings include:

  • Fewer return trips
  • Less crew downtime waiting for repairs to cure
  • Reduced travel and mobilization costs
  • Less repeated setup and cleanup
  • Better utilization of grinders, vacuums, trucks and other equipment
  • Fewer scheduling disruptions
  • More opportunity to maintain one-day garage floor installations
  • Greater production from the same crew and equipment

The business advantage is simple:

The savings aren’t just in faster concrete repair. The real savings come from eliminating downtime and keeping a one-day coating job a one-day job.

For contractors trying to increase production without adding another truck, another crew or more equipment, reducing nonproductive waiting time can be particularly valuable.

Built for Concrete Repair Before Coating

Speed is important, but a fast repair still has to provide a suitable surface for the coating that follows.

Roadware 10 Minute Concrete Mender has a very low viscosity, allowing the material to penetrate tight cracks rather than simply forming a repair across the top of the opening. Roadware identifies cracks, spalls and concrete surface imperfections prior to coating among the product’s intended applications.

Once cured, the repair can be shaved, ground or blended flush with the surrounding concrete.

That is important for garage floor installers because poorly finished repairs can telegraph through thin-film and decorative coating systems. A repair that can quickly be brought flush with the surrounding slab helps the installer create a more uniform substrate before applying epoxy, polyurea or polyaspartic coatings.

For wider cracks and larger repairs, manufactured silica sand can also be incorporated according to Roadware’s installation procedures.

The result is a repair process designed to fit naturally into the contractor’s surface-preparation workflow:

Grind. Repair. Finish. Coat.

Finished concrete slab repaired with 10 Minute Concrete Mender and finish coated.
Roadware Concrete Mender™ Off-white is compatible with most high-build overlay or coating systems. It is also recommended by several top coating system manufacturers.

From Hairline Cracks to Spalls and Surface Damage

Garage floors rarely have just one type of defect.

During preparation, a contractor may uncover:

  • Hairline cracks
  • Larger dormant cracks
  • Spalled crack edges
  • Pop-outs
  • Surface defects
  • Small damaged areas
  • Deteriorated concrete adjacent to control joints

Concrete Mender can give installers one fast repair material for several of these common conditions.

Its low viscosity makes it useful for penetrating tight cracks, while silica-sand extension can be used according to Roadware procedures for larger cracks and spalled areas.

Cartridge packaging also provides 1:1 metering and mixing at the point of application, making smaller repairs convenient without requiring the crew to mix a large batch of repair material.

For a coating crew, that versatility can help simplify the repair portion of floor preparation.

Diagram of concrete issues and solutions with Roadware 10 Minute Concrete Mender.
Typical Roadware 10 Minute Concrete Mender applications

From Below Freezing to Summer Heat

Garage floor contractors don’t always get to work under perfect laboratory conditions.

Spring mornings can be cold. Unheated garages can approach or fall below freezing. Summer slabs can be hot. Contractors need repair materials that provide flexibility across changing jobsite conditions.

Roadware 10 Minute Concrete Mender has a broad recommended application-temperature range of approximately 0°F to 100°F.

That means repairs can potentially be made in conditions ranging from below the freezing point of water to summer heat, giving professional installers greater flexibility throughout the season.

Temperature does affect cure speed. The familiar 10-minute performance is associated with temperatures around 70–72°F. Colder concrete and colder material will increase cure time. Frost must also be removed before application, and Roadware recommends conditioning the material to approximately 60°F–80°F for best handling.

The important advantage for contractors is the broad working range.

Instead of having a narrow temperature window dictate when repairs can be performed, installers have greater flexibility to keep projects moving through changing weather and garage conditions.

Combined with rapid curing, that supports the same productivity objective:

Prep, repair and coat in one day—even when jobsite temperatures are less than ideal.

Keep Fast-Cure Coating Systems Fast

Polyurea and polyaspartic garage floor systems have changed customer expectations.

Homeowners increasingly expect contractors to transform a garage quickly. Contractors, in turn, build their schedules around rapid preparation, coating and return to service.

But the entire installation is only as fast as its slowest step.

If the coating cures quickly but the crack repair requires an overnight wait, the repair—not the coating—controls the schedule.

Concrete Mender helps contractors preserve the productivity advantage of fast-curing coating systems by reducing the amount of time between concrete repair and coating.

That can be particularly important when cracks or spalls are discovered only after grinding begins. Instead of treating unexpected repairs as an automatic schedule disruption, the crew can address appropriate defects and continue preparing the floor.

Repair the Concrete, Not Just the Surface

Professional floor preparation is about more than making cracks disappear.

The objective is to create a sound, clean, properly prepared substrate for the coating system.

Concrete Mender should therefore be considered part of the overall preparation process—not a substitute for it.

The floor still needs to be properly cleaned and mechanically prepared according to the coating manufacturer’s requirements. Oil, dust, laitance, curing compounds, loose concrete and other contaminants must be addressed. Moisture conditions must also meet the requirements of the selected coating system.

After the repair is completed, the surrounding floor still needs the appropriate concrete surface profile for the epoxy, polyurea or polyaspartic system being installed.

Fast repair should complement good surface preparation, not replace it.

Hairline cracks repaired using Roadware 10 Minute Concrete Mender and Easy Injection application.
Hairline cracks repaired using Roadware 10 Minute Concrete Mender and Easy Injection application.

Know Which Cracks and Joints to Repair

One of the most important skills of a professional coating installer is knowing the difference between a dormant concrete defect and a joint or crack that needs to move.

Concrete Mender is best positioned for dormant cracks, spalls and other concrete defects where significant future movement is not anticipated.

That distinction matters.

Expansion joints, isolation joints, active cracks and other locations designed or expected to move generally require a different treatment. These joints may need to remain functional through the finished flooring system and can require backer rod and a compatible flexible sealant.

Even something commonly called a control joint should be evaluated before it is rigidly filled and coated.

A dormant contraction or control joint may be an appropriate candidate for filling when the flooring system and conditions permit. But if the joint continues to experience significant movement, that movement can eventually reflect through the coating.

No rigid repair material can guarantee that an actively moving slab will never crack again.

That is why the professional approach is not simply:

“Fill every crack.”

It is:

“Identify the condition, choose the correct repair and then install the coating.”

A Better Way to Think About Repair Costs

Contractors often compare repair products by looking at the price of the cartridge, gallon or kit.

That can miss the larger economic picture.

The more useful question is:

What does the repair process cost the entire installation?

A repair product that costs less but forces another trip to the jobsite may not actually be the lower-cost solution.

Consider everything associated with returning for a second day:

  • Crew wages
  • Drive time
  • Fuel
  • Truck expense
  • Equipment transportation
  • Loading and unloading
  • Setup
  • Cleanup
  • Schedule coordination
  • Lost opportunity to start another project

Those costs can easily matter more to a contractor than the price difference between repair materials.

Concrete Mender’s value proposition is therefore not simply “fast crack repair.”

It is workflow efficiency.

When appropriate repairs can be completed, finished and coated during the same mobilization, contractors have an opportunity to reduce nonproductive labor and get more value from every crew, truck and piece of equipment.

More Floors From the Same Resources

For a growing coating company, productivity matters.

Adding revenue traditionally means adding crews, trucks, grinders, trailers and other equipment. But another way to increase capacity is to remove unnecessary waiting from the existing installation process.

If crews spend less time:

  • Driving back to yesterday’s project
  • Waiting for repair materials
  • Setting equipment up twice
  • Cleaning equipment twice
  • Rescheduling delayed jobs

they can spend more time doing what generates revenue:

Installing floors.

That is where a fast concrete repair material can have an impact far beyond the crack itself.

Spalled concrete slab repaired with Roadware 10 Minute Concrete Mender, ground flat and ready for coating.
Spalled concrete slab repaired with Roadware 10 Minute Concrete Mender, ground flat and ready for coating.

Repair Today. Coat Today.

Garage floor coating technology has become faster. Surface preparation and concrete repair need to keep pace.

Roadware 10 Minute Concrete Mender gives professional coating installers a repair option designed around that reality.

It offers:

  • Rapid cure
  • Same-day coating potential
  • Very low viscosity for tight cracks
  • Repair capability for cracks, spalls and surface defects
  • Fast grinding and finishing
  • Convenient 1:1 cartridge application
  • A broad approximately 0°F–100°F application-temperature range
  • Compatibility with a fast-track preparation workflow

The result is a straightforward value proposition for the professional garage floor coating contractor:

Prep it. Repair it. Grind it. Coat it. Finish the job today.

The real value of Roadware 10 Minute Concrete Mender isn’t simply that the chemistry cures quickly.

It is what that speed can do for the contractor’s business.

By helping crews repair appropriate concrete defects and continue into the coating system during the same workday, Concrete Mender can help reduce downtime, avoid unnecessary return trips, improve crew and equipment utilization and preserve the economics of a one-day garage floor installation.

Repair today. Coat today. Move on to the next job.

Installation conditions, temperature, repair dimensions and substrate conditions affect cure time. The approximately 10-minute cure performance is associated with temperatures around 70–72°F; colder conditions increase cure time. Concrete must be clean, dry and properly prepared, and frost must be removed before application. Concrete Mender is intended for appropriate dormant concrete repairs and should not be used as a substitute for flexible treatment of active cracks, expansion joints, isolation joints or other joints that must accommodate movement. Always follow current Roadware installation instructions and confirm preparation, moisture and compatibility requirements with the manufacturer of the selected coating system.

70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color
70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color

70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color

70300 Roadware 10 Minute Concrete Mender 600ML Cartridge Off-White Color
70300 Roadware 10 Minute Concrete Mender 600ML Cartridge Off-White Color

70300 Roadware 10 Minute Concrete Mender 600ML Cartridge Off-White Color. Case of 12 Cartridges.

80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit
80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit

80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit

80050 Roadware 10 Minute Concrete Mender Ten-Gallon Kit
80050 Roadware 10 Minute Concrete Mender Ten-Gallon Kit

80050 Roadware 10 Minute Concrete Mender Ten-Gallon Kit

80300 Roadware 10 Minute Concrete Mender 600ml Cartridge
80300 Roadware 10 Minute Concrete Mender 600ml Cartridge

concrete mender, Concrete Polishing, Concrete Repair, Technical Articles

Before the Shine

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Why concrete repair may be the most important step in a polished concrete floor

Walk into a well-executed polished concrete space and the first thing you notice is the finish.

Light moves across the floor. Aggregate becomes part of the architecture. What was once simply a concrete slab takes on depth, character, and permanence.

But long before the first polishing pass brings out that shine, there is another job to do.

Repair the concrete.

Cracks, spalls, pop-outs, damaged joints, anchor holes, pits, and other surface defects don’t disappear when a floor is polished. In many cases, polishing makes them more visible.

That puts repair near the beginning of the process, where the right material, color, aggregate, and technique can make a significant difference in the appearance and continuity of the finished floor.

For contractors working against a schedule, there is another consideration: making those repairs without turning floor preparation into a waiting game.

That’s where Roadware 10 Minute Concrete Mender can become part of the polishing workflow.

Polishing Reveals Everything

Unlike a coating, polished concrete doesn’t cover the slab.

It reveals it.

That’s part of its appeal. Every floor carries evidence of how the concrete was placed, finished, used, repaired, and aged. Aggregate exposure, color variation, cracks, old penetrations, and previous repairs can all become elements of the final appearance.

A good polishing contractor understands this before the grinder ever reaches the floor.

The objective isn’t necessarily to make every repair invisible. That’s rarely realistic with existing concrete. Instead, the goal is to make repairs sound, compatible, and intentional within the visual character of the floor.

That makes concrete repair part technical process and part craftsmanship.

A concrete floor in a heavy equipment shop damaged by decades of industrial use.
A concrete floor in a heavy equipment shop damaged by decades of industrial use.

The Repair Before the Polish

Before polishing begins, contractors may encounter everything from tight cracks to substantial surface defects.

Typical conditions can include:

  • Cracks
  • Pits and small spalls
  • Pop-outs
  • Surface deterioration
  • Damaged concrete around joints
  • Abandoned anchor and bolt holes
  • Chips and edge damage
  • Voids and irregular surface defects

Each one creates a decision:

Leave it? Remove it? Repair it? Or incorporate it into the architectural character of the floor?

When repair is the answer, remember one important thing:

The repair material may ultimately become part of the finished floor.

That means appearance matters.

Color Matters When the Repair Will Be Exposed

On an industrial floor hidden beneath a coating, repair color may have little importance.

Polished concrete is different.

Once the floor is ground and polished, the repair remains visible along with the surrounding concrete. This makes the color of the repair material an important consideration during the preparation phase.

Resin based crack repair in a polished concrete floor.
Resin based crack repair in a polished concrete floor.

For many polishing applications, Roadware 10 Minute Concrete Mender in Off-White or Natural can provide a better starting point for blending the repair with the surrounding concrete.

These lighter, concrete-oriented colors can reduce the visual contrast associated with using a repair material that is substantially darker than the surrounding slab.

The intention isn’t to promise an invisible repair.

It’s to give the contractor a repair color that can work more naturally with the appearance of the concrete.

THE POLISHER’S APPROACH
Don’t wait until the final polishing steps to think about how a repair will look. Color, aggregate, repair technique, and anticipated aggregate exposure should be considered while the floor is being prepared.

A polshed concrete repair using Roadware 10 Minute Concrete Mender off-white and dry concrete sand.
A polshed concrete repair using Roadware 10 Minute Concrete Mender off-white and dry concrete sand.

Turning Concrete Mender Into Pit Grout

Color is only one part of the equation.

Another useful approach is combining Concrete Mender with clean, dry aggregate to create a repair mortar for pits and other larger surface defects.

Rather than simply filling a larger defect with neat resin, the aggregate becomes part of the repair itself.

The concept is straightforward:

Concrete Mender + Selected Dry Aggregate = Repair Mortar / Pit Grout

This can be useful for pits, holes, spalls, abandoned penetrations, and other irregular defects encountered during preparation.

More importantly for the polishing contractor, that aggregate eventually becomes part of what is exposed when the repaired area is ground.

This creates an opportunity to think beyond simply filling the defect.

Think about what that repair is going to look like after the grinder reaches it.

Roadware 10 Minute Concrete Mender with silica sand and black pigment is troweled on to the floor during the repair and polishing process.
Roadware 10 Minute Concrete Mender with silica sand and black pigment is troweled on to the floor during the repair and polishing process.

Choose the Aggregate With the Finished Floor in Mind

Aggregate selection can influence the visual character of a polished repair.

When practical, contractors can select clean, dry aggregate that complements the surrounding concrete and the intended level of exposure.

Combined with Off-White or Natural Concrete Mender, the aggregate gives the contractor another tool for creating a repair that relates visually to the existing slab.

The concept becomes:

Choose a Concrete Mender color that complements the concrete.

Then:

Choose aggregate that complements the exposed floor.

After grinding, the exposed aggregate within the repair can help break up what might otherwise appear as a solid patch of repair material.

Instead of thinking only about filling the void, the contractor is essentially building a small section of repair material that will become part of the finished architectural surface.

Polished concrete repair with Roadware 10 Minute Concrete Mender and MatchCrete Clear
Polished concrete repair with Roadware 10 Minute Concrete Mender and MatchCrete Clear.

Match It. Blend It. Or Let It Show.

Polished concrete isn’t uniform, and repairs don’t necessarily need to be either.

Some repairs can be blended into the surrounding floor through thoughtful selection of Concrete Mender color, aggregate, and preparation technique.

Other repairs may remain visible.

That isn’t automatically a failure.

Existing concrete contains variations in cement color, sand, aggregate, finishing, age, wear, and previous repairs. Trying to promise an exact color match can create unrealistic expectations.

A better question is:

How do we make this repair look intentional when the floor is finished?

Sometimes the answer is to make the repair blend as closely as practical.

Other times, the repair becomes part of the floor’s character.

Either approach can work.

What matters is making that decision before polishing reveals the repair.

Cracks Tell a Story Too

Cracks present their own aesthetic challenge.

Once repaired and polished, a crack may remain visible as a line traveling through the finished floor.

On decorative and architectural concrete, that isn’t necessarily something that has to be disguised.

In the right environment, it can become part of the floor’s character.

The important point is to recognize that possibility before work begins and establish realistic expectations for the finished appearance.

Concrete moves.

Concrete cracks.

Existing floors carry history.

Polishing doesn’t erase that history. It refines it.

Repair Is Part of the Polishing Process

Floor polishing is a sequence.

Repairs have to fit within the larger process of preparing, grinding, honing, densifying, polishing, and finishing the slab.

If repairs become a major production bottleneck, the entire polishing operation can be affected.

That’s one reason a rapid concrete repair material makes sense within a polishing workflow.

Roadware 10 Minute Concrete Mender gives the contractor a repair option designed around rapid concrete repair, allowing cracks, pits, spalls, holes, and other defects to be addressed as part of the broader floor-preparation operation.

It changes the conversation from:

“When can we get back to the floor?”

to:

“How do we make the repair part of the floor?”

Indoor loading dock with a stained, dirty concrete floor leading to open bay doors and forklift equipment outside
Before
Dusty concrete floor with a yellow hose along the top edge and a darker moldy-looking area near the bottom.
Grinding
Wide view of a glossy concrete warehouse floor with reflections from overhead lights; a person and stairs visible in the distance.
After

The Floor Is the Finish

There is a fundamental difference between preparing concrete to receive a coating and preparing concrete to become the finished surface.

With polished concrete, there is nowhere for poor preparation to hide.

Every decision made during the repair stage can influence what is ultimately revealed:

The crack repair.

The pit grout.

The filled anchor hole.

The Concrete Mender color.

The selected aggregate.

The grinding transition.

The craftsmanship.

That’s precisely why repair deserves more attention in the polishing conversation.

The polishing machine may create the shine.

But the quality of the finished floor begins before the shine ever appears.

Where Concrete Mender Fits

For the polishing contractor, Roadware 10 Minute Concrete Mender can become part of the floor-repair and preparation toolbox for cracks, pits, spalls, holes, and other defects that need attention before the polishing process is completed.

For repairs where appearance is particularly important, Off-White or Natural Concrete Mender can help the repair relate more naturally to the surrounding concrete than a strongly contrasting repair color.

For pits, holes, spalls, and larger defects, incorporating appropriately selected clean, dry aggregate can turn the material into a repair mortar or pit grout while introducing aggregate into the repaired area.

Once that repair is subsequently ground and polished, it becomes part of the visual character of the floor.

And that’s the real objective: Not simply repairing concrete, It’s preparing the repair for what comes next.

70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color
70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color

70020 Roadware 10 Minute Concrete Mender Two-Gallon Kit Off-White Color

71020 MatchCrete Clear 2-Gallon Kit
71020 MatchCrete Clear 2-Gallon Kit

80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit
80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit

80020 Roadware 10 Minute Concrete Mender Two-Gallon Kit

Concrete Repair, Concrete Repair

Proven Full-Depth Hairline Crack Injection Breakthrough

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Roadware Is Rewriting the Rules of Concrete Repair

Roadware 10 Minute Concrete Mender™ and Easy‑Injection mixers are challenging long‑held assumptions in the concrete repair industry. Full‑depth structural repair in hairline cracks—without cutting—was once considered impossible. Today, it’s becoming standard practice.

Broken Rule One Hairline cracks are not worth fixing.

Hairline cracks have long been dismissed as insignificant. Contractors often reassure customers with familiar lines: “Concrete cracks—it’s normal,” or “It’s only on the surface.”

But the reality is unavoidable: every major crack begins as a hairline crack. Some are so fine they’re invisible until they propagate. We rely on control joints to guide shrinkage, yet concrete still cracks where it shouldn’t. And because the industry lacked an efficient way to repair these micro‑cracks, we learned to ignore them.

Customers don’t ignore them. They see flaws in a brand‑new floor. They want answers—and now, finally, there’s a solution.

Broken Rule Two You have to cut open a hairline crack to repair it.

Traditionally, this rule made sense. If repair material can’t reach the crack, it can’t do its job. Cut‑and‑fill methods using diamond saws have been the backbone of structural crack repair for decades.

But cutting is invasive, dusty, and slow—and unnecessary for hairline cracks.

Scoring a concrete crack with a diamond grinder.

What the industry needed was a way to push repair material into cracks too small to open mechanically. Roadware 10 Minute Concrete Mender, paired with Easy‑Injection mixers, delivers exactly that. The ultra‑low viscosity allows the material to chase cracks deep into the slab, restoring aggregate interlock from the inside out.

This isn’t caulk. This is structural repair at a microscopic scale.

Broken Rule Three Crack injection requires pumps, ports, slow epoxy, and lots of time.

Traditional injection systems are cumbersome: ports every few inches, high‑pressure pumps, and epoxies that take hours to cure. And after all that effort, epoxy often settles beneath the slab instead of staying in the crack.

Roadware’s system flips the script.

With Easy‑Injection mixers, installers can fill cracks as small as 20 mil (0.02 inches) using nothing more than a 3/8‑inch drill hole and a manual gun. Concrete Mender flows visibly along the entire length of the crack—no pumps, no ports, no waiting.

And unlike epoxy, Concrete Mender begins to gel in about five minutes, locking itself into place before gravity can pull it away.

1006-STR Roadware Easy Injection static mixer for Roadware 10 Minute Concrete Mender 600ml Cartridge.

Why It Works: Microdoweling™

Roadware 10 Minute Concrete Mender doesn’t behave like brittle epoxy. It penetrates the concrete’s pore structure, creating a Microdoweling™ effect—a mechanical bond that engages the substrate instead of sitting on top of it.

Epoxies harden and become brittle. Under traffic, they grind against the bond line until the repair fails.

Concrete Mender flexes with the slab. It restores aggregate interlock. It becomes part of the concrete’s structural behavior rather than fighting against it.

This is repair from the inside out—not a surface patch, not a cosmetic fix, but a structural restoration.

Diagram showing Concrete Mender Soft-tip mixer injection into a concrete slab.

Roadware 10 Minute Concrete Mender™ and Easy-injection mixers make full-depth crack repairs in hairline cracks without cutting. This less invasive crack repair technique breaks the rules for concrete repair.

Roadware 10 Minute Concrete Mender with Easy-injection mixer repairing a hairline crack.
Concrete Mender crack injection into 24 inches of concrete.
Concrete Mender crack injection into 24 inches of concrete. Notice the material penetrating full depth.
Repaired hairline cracks less than 20 mil across using Roadware 10 Minute Concrete Mender and Easy Injection application. UV Forensic Photography. See More Here

Getting Started

80300 Roadware 10 Minute Concrete Mender 600ml Cartridge
80300 Roadware 10 Minute Concrete Mender 600ml Cartridge

1006-STR: 24-Element Static Mixer with Easy Injection Tip
1006-STR: 24-Element Static Mixer with Easy Injection Tip

1006-STR 24-element static mixer with Easy Injection Tip

Concrete Repair

Effortless Full-Depth Concrete Crack Injection with 10 Minute Mender

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Roadware 10 Minute Concrete Mender™ has transformed how contractors, facility managers, and engineers approach full‑depth concrete crack repair. Traditional epoxy injection systems are slow, brittle, and require expensive pumps and specialized labor. Concrete Mender’s ultra‑low viscosity polyurethane and Easy Injection™ Mixers make structural crack repair faster, cleaner, and more reliable—without high‑pressure equipment.

Roadware 10 Minute Concrete Mender and the Easy Injection System for repairing cracks and delaminations.

Why Traditional Epoxy Injection Falls Short

Epoxy injection has been the default method for decades, but it comes with major drawbacks:

  • High-pressure pumps required to force thick resin into cracks
  • Brittle repairs that fail under movement or thermal cycling
  • Slow cure times—often several hours
  • Heavy silica dust exposure from aggressive crack chasing
  • High labor cost due to specialized training and equipment

These limitations make epoxy injection impractical for real-world industrial floors, warehouses, and high‑traffic environments.

Roadware Easy Injection System

The Roadware Advantage: Microdoweling™ + Soft‑Tip Injection

Roadware 10 Minute Concrete Mender is engineered for deep penetration and structural bonding. Its unique properties make it ideal for full‑depth crack injection:

  • Ultra‑low viscosity (≈8 cps)—flows like water
  • Surface tension ⅓ of water—wicks into microfractures
  • Structural polyurethane—strong but flexible
  • Fast gel time—begins curing in minutes
  • No pumps required—manual injection is enough

This combination creates a Microdoweling™ effect, where the polymer forms millions of molecular anchors inside the concrete, restoring structural integrity without brittleness.

Concrete Mender crack injection into 24 inches of concrete.
Concrete Mender crack injection into 24 inches of concrete. Notice the material penetrating full depth.

How to Inject Concrete Mender for Full‑Depth Repairs

Below is the optimized, step‑by‑step workflow crews can follow in the field.

1. Drill Access Holes

  • Drill 3/8″ diameter holes, about 1 inch deep, along the crack.
  • Space holes based on crack length and depth.
  • Vacuum thoroughly to remove dust.
  • (Silica safety note: follow OSHA Table 1 compliance.)

2. Tape the Crack Surface

Use clear duct tape or Gorilla Clear Repair Tape to seal the crack surface. Avoid packing tape—it often fails to adhere to concrete.

3. Prepare the Cartridge

  • Install the Soft‑Tip™ Injection Mixer
  • Purge air according to Roadware instructions
  • Insert the tip into the first drilled hole

4. Inject Concrete Mender

  • Gently squeeze the gun to introduce material
  • Move between several holes to allow bottom‑up filling
  • Watch for:
    • Material traveling under the tape
    • Air bubbling from adjacent holes
  • Continue until the crack is filled to refusal

5. Finish the Repair

  • After ~10 minutes at 70°F (23°C), remove the tape
  • Shave, grind, or polish excess material
  • Blend the repair into the surrounding slab

Why This Method Outperforms Epoxy Injection

Faster Production

Crews can complete full‑depth repairs in minutes—not hours—allowing more linear feet of crack repair per shift.

Less Dust, Less Labor

The drill‑hole method is far less invasive than routing and chasing cracks, dramatically reducing silica dust exposure.

Stronger, More Durable Repairs

Concrete Mender moves with the slab, preventing brittle failures common with epoxy.

Lower Total Cost

No pumps, no ports, no specialized epoxy injection rigs. Just cartridges, mixers, and standard dispensing tools.

Ideal Applications

  • Warehouse floors
  • Distribution centers
  • Manufacturing plants
  • Retail slabs
  • Airport hangars
  • Parking decks
  • Cold storage facilities

Anywhere concrete cracks threaten structural integrity or operational efficiency, Concrete Mender provides a fast, reliable solution.

1006-STR: 24-Element Static Mixer with Easy Injection Tip
1006-STR: 24-Element Static Mixer with Easy Injection Tip

1006-STR 24-element static mixer with Easy Injection Tip

80300 Roadware 10 Minute Concrete Mender 600ml Cartridge
80300 Roadware 10 Minute Concrete Mender 600ml Cartridge

concrete mender, Concrete Repair, Concrete Repair

Ultimate Guide to Fast-Curing Concrete Repairs for Warehouses

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Why Fast-Curing Repairs Matter in Modern Warehouses

Warehouse operations are faster, heavier, and more continuous than ever. A single cracked slab or spalled joint can disrupt workflow, damage equipment, and create safety hazards. Traditional concrete repair products often fall short because they cure slowly or fail under dynamic loads.

Key challenges facility managers face:

  • Heavy forklift and truck traffic
  • Tight logistics schedules
  • Rising maintenance costs
  • Pressure to reduce downtime
  • Need for long-term structural durability

This is why fast-curing, structural-grade materials are now essential—not optional.

Roadware 10 Minute Concrete Mender is widely recognized as one of the most reliable heavy-duty floor repair systems for industrial environments. Its unique Microdoweling™ action allows the material to penetrate deep into the concrete matrix, creating a permanent structural bond.

What Makes Concrete Mender Different?

  • Ultra-low viscosity (8 cps) for deep penetration
  • Structural bonding that restores aggregate interlock
  • Fast cure times—traffic-ready in 10–15 minutes
  • High durability under forklift and truck traffic
  • Works in extreme temperatures (down to –30°F)
  • Minimal surface prep reduces labor and downtime

This is true structural concrete repair designed for demanding industrial environments.

Concrete Mender crack injection into 24 inches of concrete.
Concrete Mender crack injection into 24 inches of concrete. Notice the material penetrating full depth.

Performance Benefits for Facility Managers

1. Rapid Cure for Minimal Downtime

Roadware’s fast-curing formula enables warehouse downtime reduction by allowing traffic lanes to reopen quickly—often within minutes.

2. Long-Term Durability Under Heavy Loads

Unlike brittle epoxies, Concrete Mender deforms with dynamic loads, preventing future cracking and eliminating weak patch lines.

Diagram of a spalled contraction joint repair using 10 Minute Concrete Mender headers.

3. Versatile Applications

  • Crack repair
  • Spall repair
  • Joint stabilization
  • Delamination injection
  • Polished concrete prep
  • Anchor and bolt repair

4. Works in Any Temperature

Perfect for cold storage, freezer slabs, exterior docks, and hot manufacturing environments, suitable for concrete repair.

Comparing Fast-Curing Industrial Concrete Repair Systems

To evaluate fast-curing concrete materials, facility managers should consider:

  • Cure speed (minutes vs. hours)
  • Bond strength (surface patch vs. structural penetration)
  • Flexibility vs. brittleness under dynamic loads
  • Temperature performance
  • Dust and prep requirements
  • Long-term durability

Roadware 10 Minute Concrete Mender consistently ranks at the top across all categories

Chart showing cure time vs temperature for Roadware 10 Minute Concrete Mender.
Chart showing cure time vs temperature for Roadware 10 Minute Concrete Mender.

Conclusion

In 2026, facility managers need concrete repair systems that deliver structural performance, fast cure times, and minimal disruption.

Additionally, Roadware 10 Minute Concrete Mender remains a trusted solution for industrial environments where up-time is critical.

Repairs must last.

Concrete Repair

Ultimate 10-Minute Mender for Polished Concrete Floor Repair

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Concrete Floor Polishing & Repair: Why Roadware 10‑Minute Concrete Mender™ Is the Industry Standard

Large buildings—big-box retailers, airports, warehouses, logistics centers, and convention halls—have made polished concrete floors among the fastest-growing flooring categories.

This trend supports polished concrete floor repair needs in large facilities.

  • Clean, modern appearance
  • Low maintenance requirements
  • Dust-free, smooth surface
  • High light reflectivity and energy efficiency
  • long-term durability under heavy traffic

Before any concrete floor can be polished, the polished concrete floor repair is needed.

All cracks, spalls, joints, and surface defects must be repaired correctly.

Otherwise, poor repairs increase the risk of grinding failures, callbacks, and costly downtime.

This highlights why polished concrete floor repair is essential for reliability and uptime.

Why Pre‑Polish Concrete Repair Matters

Polishing equipment places extreme stress on the slab. If the repair material cannot bond, flex, and carry load, it will:

  • Pop out during grinding
  • Smear or melt under heat
  • Disbond under forklift traffic
  • Create visible defects that ruin the finish

This is why professional polishing contractors rely on high‑performance structural repair materials, not patching compounds.

⭐ Contractor Spotlight: C&C Construction Co.

“Concrete Mender™ eliminates the anxiety of repair failure.”

Curtis Venable, president of C&C Construction Co., has polished millions of square feet of concrete. His rule is simple:

“Cracks, spalls, and joints must be repaired correctly. Poor repairs undermine my credibility and cost everyone time and money.”

While Venable uses different materials depending on the job, he frequently chooses Roadware 10‑Minute Concrete Mender™ for its speed, strength, and reliability.

⭐ Why Contractors Choose Roadware 10‑Minute Concrete Mender™

1. Microdowling™ Technology = Permanent Structural Bond

Concrete Mender™ is an ultra‑low‑viscosity polymer that penetrates deep into micro‑fissures, creating a structural bond stronger than the original concrete. This Microdowling™ action allows repairs to:

  • Transfer load without cracking
  • Absorb shock from forklifts and heavy equipment
  • Resist chemicals and moisture
  • Perform in extreme temperatures, including freezers

“I know it won’t melt, smear, or come out when my polishing machines run over it,” Venable says. “Some of our repairs are 6–7 years old and still perfect.”

2. 10‑Minute Cure Time = Maximum Productivity

On large polishing projects, downtime is expensive. Concrete Mender™ cures in about 10 minutes, allowing crews to:

  • Repair
  • Grind
  • Polish
  • Keep machines moving

Venable recalls a 110,000‑square‑foot national grocery retailer project:

“With six people on polishing machines for three weeks, waiting for repairs to cure is not an option. Concrete Mender keeps the job moving.”

Seamless polished concrete floor repair

Retailers demand clean, uniform floors—no mismatched patches or visible repairs. Concrete Mender™ blends naturally with surrounding concrete, producing a near‑perfect color match after polishing.

“A patchwork of colors is unacceptable today,” Venable explains. “Repairs must blend into a single, clean finish.”

  • Rockford Concrete Polishing & Epoxy Flooring Company
  • Joint Filling – Elegant Polishing
  • Before and After Gallery - Concrete Coatings and Repair
  • Concrete Crack repair: Breathing New Life Into Your Floors | NZ ...

Retail stores and big-box chains

  • Warehouses and distribution centers
  • Airport hangars
  • Freezers and cold storage
  • Industrial facilities
  • Polished concrete showrooms
  • High‑traffic commercial floors

It can be cut, ground, polished, and colored just like the surrounding concrete—without smearing or pulling out.

⭐ Summary: The Professional’s Choice for Polished Concrete Repair

Roadware 10‑Minute Concrete Mender™ delivers:

  • Permanent structural bonding through Microdowling™
  • 10‑minute cure time for maximum efficiency
  • Polishable, cuttable, grindable performance
  • Color‑blending repairs that disappear into the slab
  • long-term durability under heavy traffic

“Concrete polishing is more competitive than ever,” Venable says. “Concrete Mender helps me meet customer expectations for appearance, performance, and efficiency.”

Contact Roadware, Inc.

Roadware Incorporated 381 Bridgepoint Way South Saint Paul, MN 55075

Richard E. King — 800‑522‑7623 or 651‑457‑6122 Kelton E. Glewwe — 800‑522‑7623 or 651‑457‑6122

Learn more: www.concretemender.com

For C&C Construction Co.: www.candcconst.com

Microdowling™, Roadware 10‑Minute Concrete Mender™, and associated logos are trademarks of Roadware Incorporated.

concrete mender, Concrete Repair

Cure for Joint Curling

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Using Roadware 10 Minute Concrete Mender and the Applied Adhesives GMP 050 pump. Here, curled contraction joints are stabilized and bonded together with Roadware 10 Minute Concrete Mender™.

Joint curling is caused by moisture‑related slab deformation. Roadware 10 Minute Concrete Mender™, installed using the Applied Adhesives GMP 050 pump, stabilizes curled joints by penetrating deep into the concrete, restoring aggregate interlock, and making the slab effectively jointless. This method provides a permanent structural repair, eliminates vertical displacement, and is traffic‑ready in minutes.

See more about curled slab repair.

Spalled control joint repaired permanently with Roadware 10 Minute Concrete Mender.
concrete mender, Concrete Repair

Heavy Duty Contraction Joint Rebuild Application For High Traffic Areas

8 Comments

Using Roadware 10 Minute Concrete Mender.

Remove loose material and create a shelf on both sides of the joint with a minimum profile of 1.5” deep and 2” wide on each side. Vacuum and thoroughly remove dust and contaminates.

Create a repair base by filling repair area halfway to grade with bulk mixed 10 Minute Concrete Mender™ combined with 10-20 grit silica sand.

Use a ratio of 1 Part mixed Concrete Mender to 2 parts silica sand. Up to 1/2 part additional sand may be added during application to assist with troweling and placement. Be sure to leave the lower half surface rough and sand covered to accept the next layer.

Diagram of a spalled contraction joint repair using 10 Minute Concrete Mender headers.

EXAMPLE

1 Qt side A,

1 Qt Side B,

4 Qts 10-20 silica sand,

Up to 1 quart additional sand as needed.

Once the first layer sets and turns grey, continue with an additional layer up to flush with the surface.

The mixed material should always be resin rich and the sand should be fully saturated when applying to the repair area.

For extra surface strength, 30 grit aluminum oxide may be broadcast and troweled in place on top as the materials start to gel in about 5 minutes after placement. Allow to fully cure and grind flush within 24 hours. OPTIONAL: Re-saw the contraction join

concrete mender, Concrete Repair, Concrete Repair

The Concrete Mender One Page Pitch

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Here is the  Roadware Concrete Mender One Page Pitch. Things you need to know when considering, recommending, specifying, and using Roadware 10 Minute Concrete Mender™

Download the PDF here:

Roadware 10 Minute Concrete Mender One Page Pitch.