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webercem pyrapatch - Repair Concrete

Verified by manufacturer 1 month ago

Saint-Gobain Weber

Fast-setting repair concrete for pavement patch or full-depth repairs

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+44 (0)1525 718877 Website


  • Small-scale, rapid concrete repairs, 25–100 mm depth.
  • Industrial floors, rapid repair of failed floor slabs
  • Bridge deck repairs.
  • Rapid repairs to pavement concrete both thin-bed and full-depth.
  • Car park decks and ramps.
  • Forecourts which require early trafficking.
  • Loading bays.
  • Coastal slipway and causeway repairs in tidal zones


Fast-setting repair concrete for pavement patch or full-depth repairs. webercem pyrapatch is a pre-packed product based on hydraulic cements with specially graded non-reactive aggregates. The product is polymer-modified which, when mixed with clean water, produces a fast setting repair concrete, suitable for patch or full-depth repairs up to 2 m². Typical patch repairs up to 100 mm depth and extended with aggregate for full depth repairs. Conformity testing to BS EN 1504-3 has confirmed that webercem pyrapatch meets the requirements for a Class R4 repair product. 

Features and benefits:

  • 15–20 minute working time at 20°C.
  • Trafficable within 3 hours.
  • Shrinkage compensated.
  • Sulphate resistant.
  • Resistant to freeze/thaw action.
  • Can be used for winter work down to 5°C.
  • Contains non-reactive aggregates.
  • May be extended with non-reactive 10 mm granite aggregate for full depth repairs over 100 mm depth.
  • Excellent strength gain at low temperatures.
  • Self priming.
  • Good compatibility with parent concrete.
  • Requires only the addition of water.
  • Independently tested by NAMAS approved laboratory.

General information






Pr_20_31_16_66 Pre-blended concretesPrimary
Pr_20_31_16_80 Small-area repair concretes


C42/310 Repair mortar

C42/335 Proprietary concrete for small area repairs

C42/320 Levelling/ smoothing coats

Specification data - Pre-blended concretes


60 N/mm² after 28 days.

Adhesive bond

>1.2 N/mm².

Modulus of elasticity

21·5 kN/mm².

Coefficient of thermal expansion

11·1 x 10–6 per °C.

Flexural strength

9.8 N/mm² after 28 days.

Abrasion resistance


Skid resistance

(Polished) SRV 54.


2340 kg/m³.

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