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Description

A preblended cementitious repair concrete which fully complies with the Highways Agency Specification for Highway Works and Department of Transport specification BD 27/86 for a high strength flowing concrete. Contains non-reactive aggregates and a low soluble alkali cement content. The repair concrete can be applied to a range of thicknesses, minimum 15 mm. Contains RHPC and PFA to clause 1702, 5 mm non-reactive carboniferous limestone to clause 1704, microsilica and shrinkage compensating agents.

Uses:

  • Repair of concrete to bridge structures to Highways Agency (HA) model specification BD 27/86.
  • Replacement of concrete to beams and crossheads.
  • Repair of car parks, buildings, balconies and stairs.
  • Coastal structural repairs and seawall reconstruction.
  • Repairing concrete columns, beams, walls and soffits.
  • Infill concrete and anchorage of bolts to large bolt pockets.
  • For use under baseplates where thick sections are required to be grouted: 75–500 mm.

Benefits:

  • Permanent structural repair concrete.
  • Rapid strength development thus reducing repair possession times.
  • Dimensionally stable, forms an integral bond to existing concrete and restores structural integrity with proven durability.
  • Free-flowing repair concrete allowing formation of intricate falsework.
  • Ideally suited in structural elements where reinforcement is congested.
  • Shrinkage-compensated to avoid shrinkage cracks and enhance durability.

Curing:

  • Immediately after finishing, the exposed surfaces of the concrete shall be cured with wet hessian, polythene or frost blankets for at least 48 hours to prevent rapid loss of water.
  • Formwork shall not be removed until the repair can support dead and imposed loads, the concrete should then be cured with a spray-on curing membrane, Weber.tec ritecure, for a minimum of 14 days.

General information
Specification data
Product Reference

webercem five star repair concrete

Thickness

15 mm (minimum).

Standard product features

Technical characteristics:

  • Tensile strength to BS 6319-7 (7 days): > 4 N/mm².

- Compressive strength BS 6319-2:

  • One day: 16 N/mm².
  • Three days: 35 N/mm².
  • Seven days: 45 N/mm².
  • 28 days: 65 N/mm².

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