webercem five star repair concrete

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.