Fosroc Patchroc GP 25kg

Fosroc Patchroc GP Rapid Setting Concrete Repair Mortar

Fosroc Patchroc GP is a high-performance, rapid setting concrete repair mortar specifically designed for the emergency repair and reinstatement of concrete pavements, industrial floors, airport aprons, access ramps and heavily trafficked areas. Engineered to minimise downtime, Patchroc GP develops exceptional early strength, allowing repaired areas to be returned to service quickly whilst providing a durable, long-lasting repair.

Supplied as a one-component, pre-blended cementitious mortar, Patchroc GP requires only the addition of clean water on site. The shrinkage compensated formulation delivers excellent bond strength, outstanding abrasion resistance and long-term durability, making it suitable for both structural and non-structural concrete repairs in demanding environments.

Complying with BS EN 1504-3 Class R4 requirements, Patchroc GP is ideal for projects where rapid reinstatement and high performance are essential.

Key Features & Benefits

• Rapid strength gain for fast return to service
• Accepts light vehicular traffic in approximately 2 hours
• High compressive strength up to 65 MPa
• BS EN 1504-3 Class R4 compliant
• Excellent bond to concrete substrates
• Shrinkage compensated formulation
• High abrasion resistance
• Excellent weather resistance
• Suitable for internal and external use
• One-component system
• Just add water
• Chloride free
• Suitable for heavy traffic areas
• Protects embedded reinforcement
• Easy to mix and apply
• Durable long-term repair solution

Applications

• Concrete pavement repairs
• Industrial floor repairs
• Airport apron repairs
• Access ramp repairs
• Warehouse floor repairs
• Loading bay repairs
• Car park repairs
• Service yard repairs
• Highway maintenance
• Emergency concrete repairs
• Structural concrete patch repairs
• Heavy traffic concrete reinstatement
• Commercial and industrial flooring repairs

Technical Information

• Product Type: Rapid setting cementitious repair mortar
• Classification: BS EN 1504-3 Class R4
• Colour: Concrete Grey
• Application Thickness: 12mm to 100mm
• Maximum Bay Size: 4m²
• Coverage: Approximately 12 litres per 25kg bag
• Coverage Rate: Approximately 1m² at 12mm thickness
• Working Time: 30 minutes at 20°C
• Working Time: 60 minutes at 10°C
• Initial Set: 40 minutes
• Final Set: 60 minutes
• Fire Rating: Euroclass A1 Non-Combustible
• Shelf Life: 12 months in unopened packaging

Performance Data

Compressive Strength

• 2 Hours: 20 MPa
• 1 Day: 50 MPa
• 7 Days: 55 MPa
• 28 Days: 65 MPa

Bond Strength

• 2.2 MPa

Elastic Modulus

• 29 GPa at 28 days

Chloride Ion Content

• 0.02%

Traffic Opening Times

At 20°C

• Pedestrian Traffic: 90 minutes
• Light Vehicular Traffic: 2 hours
• Heavy Vehicular Traffic: 3 hours

At 10°C

• Pedestrian Traffic: 3 hours
• Light Vehicular Traffic: 4 hours
• Heavy Vehicular Traffic: 5 hours

Frequently Asked Questions

What is Fosroc Patchroc GP used for?

Patchroc GP is designed for the rapid repair of concrete pavements, floors, airport aprons, access ramps and other heavily trafficked concrete surfaces.

How quickly can repaired areas be reopened?

Under normal conditions at 20°C, pedestrian traffic can be allowed after approximately 90 minutes and light vehicles after around 2 hours.

What thickness can Patchroc GP be applied at?

The mortar can be applied between 12mm and 100mm in a single application.

Is Patchroc GP suitable for external use?

Yes. It is suitable for both internal and external applications and provides excellent weather resistance.

Does Patchroc GP shrink during curing?

No. The mortar is shrinkage compensated to minimise cracking and ensure a durable repair.

Can it be used in heavy traffic areas?

Yes. It has been specifically developed for areas subjected to heavy pedestrian and vehicular traffic.

Downloads

Data sheet