AGV’s or Automated Guided Vehicles are the reliable workhorses of the modern warehouse. They are designed to run smoothly and predictably all day and everyday. AGV’s are great at repetitive tasks moving freight as needed day in and day out. These repeated trips over the same path can be very punishing to concrete floors. The small hard wheels of an AVG can crush control joint sidewalls and grind the concrete surface to dust. This leads to rough, uneven floors that can cause premature breakdowns of AGV drive systems, wheels, and even damaged freight.
“If your AVG could talk, it would ask for Concrete Mender. ” Richard King, Roadware, Inc.
Roadware 10 Minute Concrete Mender with Microdoweling™ penetrates into concrete surfaces repairs concrete cracks, joints and spalls where others fail. Over the years we have noticed some conditions needed for successful repairs in the path of AVG’s.
Repairs need to be as tough as the concrete itself. But not too tough. Let’s say your concrete is a typical 4000 psi in compressive strength. The AGV wheels are grinding away the surface of the concrete and spalling the control joints. You repair the “bad” sections of the path with fairly brittle 10,000 psi epoxy. Now you have sections of the original concrete and sections of much harder epoxy. As the original concrete continues to grind away, the hard epoxy remains and you just created more speed bumps for the AVGs. Concrete Mender will wear with the concrete and deflect with the concrete under load. Your AVG’s favorite path will be smoother longer.
Stop your repairs from popping out. Did you ever notice common warehouse floor repairs popping out in chunks? This can happen when you put a super hard epoxy patch in a not as hard concrete floor. The epoxy is so brittle that it fractures the bond-line when a load is applied. Epoxy repair products have a modulus of elasticity that is so high, it will fracture the concrete before deflecting under load. Concrete Mender has a modulus of elasticity that is slightly less than concrete so it will deflect with concrete concrete under load and gently transfer load from the repair to the surrounding concrete.
Time is money! Closing down aisles or sections of a warehouse is a disruption for everyone including AVG’s. With minimal prep requirements and less invasive techniques including Roadware Easy Injection, 10 Minute Concrete Mender can have your AVG pathways back in service in minutes, not hours or days. You can even make repairs in operational freezers down to -30F.
Make Roadware 10 Minute Concrete Mender part of your bridge preventative maintenance program. Repair cracks as they develop when they are small. Don’t let small cracks turn into big problems. Roadware 10 Minute Concrete Mender™ is extremely tough and will withstand even the harshest punishment. Use all year long… may be applied at temperatures as low as -20° F with excellent results.
Roadware 10 Minute Concrete Mender is great repairing surface cracks in a bridge deck. The flow-and-go application along with the 10 minute cure time allow repair crews to get on and off the bridge quickly. Traffic can be returned to the bridge in just 10 minutes after application. In the Philippines, crews often work at night when traffic is low and working conditions are cooler.
Crews work in teams. One person shoots the Concrete Mender from 600ml cartridges, one person applies filler sand, and one person trowels the repair smooth.
Workers repairing cracks in the Bantum Bridge in the Philippines using Roadware 10 Minute Concrete Mender.
What are the reasons DOT’s Roadware?
1) “Safety for the driving public.” Roadware repairs are ready for traffic in 10 minutes. Lane closure time is dramatically reduced.
2) “Safety for my crew.” The interstate is a dangerous work environment, the quicker repairs are made, the less exposure to the hazards of working on a heavily traveled interstate.
3) “Saves a lot of money.” Quick cure times, easy mixing, straight forward application, and good long term performance makes Roadware 10 Minute Concrete Mender a good value. After a few days of training, the crew was able to repair a bridge in half a day. One district in Wisconsin saved about $1500 per bridge over conventional repair methods. No overnight lane closures are needed and crews are more productive with less equipment requirements.
For many years, engineers have looked for ways to fully inject repair polymers into cracked concrete structures. The general consensus is to seal off the crack with a sacrificial epoxy and install injection ports every few inches. Then thick epoxy is injected under high pressure into the crack with expensive resin injection pumps. The process is time-consuming, the epoxy is brittle, the equipment is expensive and the skill level is highly specialized. This makes epoxy injection slow, expensive and not really effective in the field.
At Roadware, we look for ways to make concrete repair fast, effective and easy.
Fast is better. When injecting Roadware 10 Minute Concrete Mender into concrete, the fast gel and cure time allows you to make a full depth repair from the bottom of the crack up to the top. If the crack you are injecting has a large hidden void, Concrete Mender repairs will start to gel and plug up the void in several minutes. Injection epoxy that takes several hours to cure will sink to the bottom of your crack and pool in the base before it has a chance to cure.
Effective. Concrete Mender is a Structural Polyurethane**. It is about as hard as typical concrete with much greater tensile and bonding strength. It is super thin at 8cps with a surface tension 1/3 of water. It can to penetrate concrete cracks and surfaces. Concrete Mender does not need to be forced into cracks with high pressure pumps and extraordinary methods. Concrete Mender can easily flow into cracks and fissures with just simple manual tools and a specially designed application mixer. You can repair more cracks in less time with less waste then ever before. Repairs are structural in nature and will move with the concrete, not against it like very hard epoxies.
Easy Application. For a repair to be effective in the field, it has to be simple enough for crews to apply efficiently. Installation productivity saves money.
To start, simply drill a 3/8″ diameter hole about one inch deep into the crack at several points along the crack. Clean the crack and holes with a vacuum.* (Click here to learn how to work safely around silica dust).
Tape off the top of the crack and around the holes you just drilled with clear duct tape or Gorilla Clear Repair Tape. These tapes have a good adhesive that will stick to the surrounding concrete. Do not use packing tape or other tapes without testing them first.
Gently squeeze the handle of the gun and slowly inject Concrete Mender into the crack. Work product into several holes at a time, moving the cartridge back and forth among them. Allow time for the Concrete Mender to start gelling in the bottom of the crack. As the crack starts to fill completely, you will see Concrete Mender flow under the clear tape from one drilled hole to the other. You may see air bubbling up from one hole as you inject Concrete Mender into adjacent holes.
Once the crack is filled to refusal, move on to the next few drilled holes until the whole crack is filled.
After 10 minutes at 70 degrees or 23 C, pull the tape. You can use a razor scraper, grinder or polishing device to remove and excess material and blend in the repair.
Using Roadware 10 Minute Concrete Mender and Soft-tip injection mixers, you can structurally repair concrete cracks and delaminations with simple tools and methods. This unique system saves time and money and allow for a high production rate for installers. The drill hole/inject method is much less invasive than traditional cut and fill methods and creates a lot less silica dust on the jobsite. The Microdoweling properties of Concrete Mender and Soft-tip Injection promises to be a winning combination for tough concrete repair challenges.
1006-STR 24-element static mixer with Easy Injection Tip
1006-STR 24-element static mixer with Easy Injection Tip
*“Workers may be exposed to dangerous levels of silica dust when cutting, drilling, grinding, or otherwise disturbing materials that contain silica. These materials and tasks are common on construction jobs. Breathing that dust can lead to serious, often fatal illnesses.” The Center for Construction Research and Training. Click here to learn how to work safely with silica.
** Structural Polyurethane: A polyurethane based material that restores structural integrity and aggregate interlock to distressed concrete by using low surface tension and low viscosity to penetrate concrete surfaces and cross-linking polymer chains to bond directly to the concrete-aggregate matrix. This bonding action utilizes capillary forces to self-inject polymer chains into the surrounding concrete. This material should have a modulus of elasticity less than the surrounding concrete and should not become brittle over time. This material may be combined with manufactured sand to form a PCC compatible polymer concrete that can structurally repair concrete cracks and spalls.
What do you do when your pool has cracks and spalls and it has to be open is three days? Back in 2001, the City of South Saint Paul, Minnesota had a problem with their new splash pool. Just before opening the pool for its second season, cracks and spalls were discovered in the concrete pool bottom and along corner where the floor meets the wall. The damaged was probably caused by the first Minnesota winter for this neighborhood splash pool facility. The repairs needed to be done fast. The pool was scheduled to be open in just three days. Any delay would be a disappointment for local families and political problem for the City who spent a lot of money to build this water recreation facility.
The call went out to see if anyone could come up with a solution. Roadware Incorporated, also located in the City of South Saint Paul, received a call from the Parks and Recreation Maintenance Department to see if we had any ideas. It turns out, Roadware 10 Minute Concrete Mender™ is a great product for repairing concrete pools. The cross-linked polyurethanes in Concrete Mender and very resistant to water, chlorine and other pool chemicals.
Roadware personnel were at the pool within a few hours and repairs were made using a mixture of Roadware 10 Minute Concrete Mender and manufactured sand.
Roadware 10 Minute Concrete Mender is flooded into the spalled ares and seeded with manufactured sand.
The Concrete Mender and sand bland can be troweled in place and will cure in about 10 minutes.
Vertical surfaces can be repaired by mixing Concrete Mender with fine manufactured sand and troweled in place.
Repairs can be painted using standard methods in 10 minutes after application at 70 degrees F (23C).
All the repairs took just a few hours to complete and the pool was ready for a fresh coat of paint in minutes. The pool was painted and filled with water the next day. The Concrete Mender repairs have largely been forgotten, but continue to perform to this day.
The Roadware YouTube Channel hits TWO MILLION VIEWS. Roadware maintains a YouTube video channel that shows Roadware products in action. This month our channel surpassed two million views. The YouTube channel currently has over 50 in-house produced videos showing simple concrete crack repair to advanced decorative and exposed aggregate concrete repairs. Check it out here. Two million views accounts for about 3.8 million watched minutes. That’s about 63,000 hours of watch time.
Here is a gallery of Roadware videos from the Roadware YouTube Channel.
Roadware Easy Injection crack repair system for concrete slabs. For commercial and Industrial use.
Roadware Easy Injection Side View
The Roadware Easy Injection System with Roadware 10 Minute Concrete Mender. See how the Concrete Mender penetrated deep into cracks and repairs the concrete from the inside out.
Roadware 6" Cylinder/Hole Test with Roadware 10 Minute Concrete Mender
Using Roadware 10 Minute Concrete Mender to fill drilled holes in concrete and restoring structural integrity. Roadware 6" Cylinder/Hole Test with Roadware 10 Minute Concrete Mender and 4030 grit manufactured sand or quartz. This technique was developed to repair concrete floors prior to installing a new automotive lift in the same location of an old automotive lift in a service garage.
Concrete Repair Crack Injection | Roadware
Roadware Easy Crack Injection with Concrete Mender and Roadware's Easy Injection System. No pumps or ports. Full depth injection repairs in minutes.
More information: https://concretemender.com
Concrete Mender Full Depth Crack Injection
Roadware 10 Minute Concrete Mender Soft-tip Full Depth Crack Injection. Inject as deep as 24 inches without expensive pumps or ports. Cures in 10 minutes at 70 degrees F. Apply down to -20F or below. See more here: http://wp.me/P8Z9BY-GC
For commercial and industrial use only.
Roadware Contraction Joint Spalling and Repair
Contraction or control joints are cut into new concrete to control the cracking process of the concrete as it cures. If the joints are filled within the first few months, the joint filler will split as the concrete continues to shrink and crack. Use Concrete Mender after the first year to eliminate the joint problem one and for all.
Exposed aggregate crack repair in Virginia with MatchCrete Clear
How contractors repir cracks in an exposed aggregate concrete patio using Roadware MatchCrete™ Clear.
How to assemble the Roadware #5150 50ml application tool and prepare a Roadware 50ml cartridge for use.
Repair stamped concrete in one minute.
How to repair a hole a stamped concrete patio condensed down to one minute. We use Roadware MatchCrete™ Clear plus some silica sand and colored grout to make a color and texture matching repair to a stamped concrete patio.
Fresno Convention Center, Roadware Flexible Cement II™
Exterior crack repairs at the Fresno Convention Center
Roadware at Pinkberry
Using Roadware 10 Minute Concrete Mender™ to create a rapid setting pebble-crete floor at a Pinkberry Store in Bahrain.
Decorative Concrete Repair with MatchCrete Clear
How to use Roadware MatchCrete™ Clear to repair cracks and spalls in decorative, stamped, colored or exposed aggregate concrete. See more at http://www.matchcrete.com
FSTR-30 Pull-off Test
FSTR-30 Tackless strip adhesion pull-off test.
Roadware 10 Minute Concrete Mender™ Countdown
Top 5 features in Roadware 10 Minute Concrete Mender™. See more at www.roadware.us.
Roadware MatchCrete Clear Countdown
Top 5 features in Roadware MatchCrete™ Clear concrete repair material. See more at www.roadware.us
The Microdoweling™ action of Roadware 10 Minute Concrete Mender™ can structurally, “glue” concrete back together. Pictured here is a concrete break-out caused by a forklift hitting an anchored steel bollard.
Concrete Mender™ was used to re-attach the broken concrete piece and repair the crack.
After about 10 minutes, the repair was buffed smooth and open for traffic.
About a week later, the bollard was again hit with a forklift and at the same angle. The repaired concrete held in place. The concrete broke on the other side of the bollard this time. Concrete Mender can’t stop forklifts from hitting bollards. It can help minimize the damage and make lasting repairs.
The Hong Kong International airport HKG is home to the world’s busiest cargo gateway airport. In 2015, HKG moved over 4.38 million metric tonnes of air cargo. It is also one of the world’s business passenger airports accommodating over 68 million passengers that same year.
Operations at the world’s busiest cargo airport run 24/7/365 without stopping. Maintenance crews need a crack and joint repair material that can be applied in a wide range of conditions and be ready for service in minutes. Roadware Flexible Cement II is a tough polyurethane crack repair material that can be applied at any ambient temperature. It bonds very well to distressed concrete and forms a tough semi-elastic polymer that will withstand heavy airline traffic in about 15 minutes. Crews at HKG airport have relied on Roadware Flexible Cement II to make repairs whenever and wherever needed for over 5 years.
To take advantage of our exclusive VIP offer for free access to the CP&S Exhibit Hall, simply enter promo code RINC when registering online. We look forward to seeing you at the show! P.S. Be sure to check out the CP&S Conference, offering more than 20 technical and business management sessions geared specifically for concrete polishing professionals!
On Wednesday, October 19 … CP&S is offering Brad Humphrey’s All-Day Leadership Boot Camp for contractor owners and employee leaders in ANY construction business. With more than 35 years in the industry, Brad is a veteran construction contractor and coach who is in high demand throughout the industry. Don’t miss this intensive, all-day coaching session to help you take your company to the next level!