Featuring Roadware 10 Minute Concrete Mender™ and the Easy Injection System

A Contractor’s Perspective on Delamination Repair

In facilities across the country — warehouses, distribution centers, food‑processing plants, and manufacturing floors — topping slab delamination remains one of the most persistent and misunderstood problems. A hollow‑sounding slab can be the first sign of a deeper issue: a topping layer that has quietly separated from the base concrete, often due to curling, moisture pressure, or years of forklift traffic.

Contractors know the challenge well. Traditional epoxy injection systems require pumps, ports, and patience — often stretching a repair into a multi‑day process. That’s why many crews have turned to Roadware 10 Minute Concrete Mender™, a material that behaves less like a conventional repair resin and more like a structural rebonding agent.

With a viscosity under 8 cps and Roadware’s signature Microdoweling™ action, Concrete Mender™ doesn’t just fill a void — it penetrates fractured concrete, wets out aggregate, and restores the slab’s ability to transfer load. For topping slab delaminations, this is exactly what contractors need: a repair that’s fast, structural, and proven under heavy traffic.

Locating the Problem: The Art of Sounding

Every good delamination repair begins with a hammer. Contractors map the slab by listening — a solid ring indicates bonded concrete, while a hollow tone reveals separation. Once the boundaries are marked, the repair plan becomes clear.

The Easy Injection Method: A Field‑Proven Approach

The Easy Injection System has become a favorite among contractors because it replaces complexity with efficiency. Instead of ports and pumps, crews use a series of small 3/8‑inch holes drilled directly into the delaminated zone.

Why Contractors Prefer It

• Minimal disruption to operations
• No specialized injection equipment
• Fast cure — traffic often resumes within an hour
• Deep penetration into tight voids
• Reliable confirmation of fill through adjacent holes

Step‑by‑Step Process

1. Drill 3/8″ holes down to the delamination layer.
2. Vacuum out dust to ensure clean penetration.
3. Inject Roadware 10 Minute Concrete Mender™ using the Easy Injection mixer.
4. Watch for material exiting nearby holes — the contractor’s visual confirmation that the void is fully saturated.
5. Continue injecting until the slab refuses additional material.
6. Finish the surface by polishing flush or re‑drilling 1/4″ and filling with color‑matched mortar.

This method has been used in many facilities, often allowing contractors to complete repairs during active operations — a major advantage in environments where downtime is costly.

Quality Verification: The Contractor’s Final Check

A successful delamination repair is easy to confirm:

• Adjacent holes show resin flow
• Hammer soundings return a solid tone
• No movement at slab edges
• Surface finish blends cleanly with surrounding concrete

In about 30 minutes, the slab typically transitions from hollow and unstable to solid and traffic‑ready.

Why This Method Works

Concrete Mender™ doesn’t rely on surface bonding — it penetrates deeply, creating a network of Microdoweling™ connections that restore aggregate interlock. Contractors often describe the repaired slab as “feeling like one piece again,” even under heavy forklift loads.

This approach was highlighted in Concrete International (July 2008), where industry experts recognized the material’s ability to rebond delaminated topping slabs without the complications of epoxy injection.

Contractor Tips from the Field

• Keep Concrete Mender™ warm for optimal flow.
• Use only dry silica sand when capping holes.
• Don’t rush the injection — let the material find its way through the void.
• Clean holes thoroughly; dust is the enemy of penetration.
• For large voids, inject until refusal, then sand‑cap.

The Bottom Line

Delamination repair doesn’t have to be slow, complicated, or equipment‑heavy. With Roadware 10 Minute Concrete Mender™ and the Easy Injection System, contractors have a fast, reliable, and structurally sound method that keeps facilities moving and slabs performing.

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Understanding Delamination in Topping Slabs

Delamination occurs when topping layer separates from the base slab due to curling, poor bonding, heavy traffic, moisture, or freeze–thaw.

Roadware 10 Minute Concrete Mender™ penetrates deeply into voids, re-bonds fractured concrete, and restores aggregate interlock through Microdoweling™ action.

Tools & Materials

• Hammer for soundings
• 3/8″ drill bit
• Shop vacuum
• Roadware 10 Minute Concrete Mender™
• Roadware Easy Injection mixers
• Silica sand (dry, clean)
• Finishing stone or grinder
• PPE: gloves, eye protection, respirator

Locating Delaminations

Use hammer soundings to identify hollow areas and mark boundaries clearly.

Easy Injection Method (3/8″ Holes)

Best For

• Edge delaminations
• Curling slabs
• Narrow voids
• Fast‑turnaround repairs in occupied facilities

Procedure

1. Drill 3/8″ holes down to the delamination.
2. Vacuum dust thoroughly.
3. Inject Roadware 10 Minute Concrete Mender™ using the Easy Injection mixer.
4. Watch for material exiting adjacent holes to confirm full penetration.
5. Continue injecting until the void is saturated.
6. Finish the surface by polishing flush or re‑drilling 1/4″ and filling with color‑matched mortar.

Quality Verification

• Adjacent holes show resin flow.
• Hammer soundings return a solid tone.
• No movement at slab edges.
• Surface finish is flush and uniform.

Contractor Tips

• Keep Concrete Mender™ warm (60–80°F) for optimal flow.
• Use dry silica sand only.
• Avoid overfilling; let resin penetrate naturally.
• Maintain clean holes—dust inhibits penetration.
• For large voids, inject until refusal, then sand‑cap.

ACI Reference

This method is featured in Concrete International (July 2008), providing authoritative validation for engineering specifications and project submittals.