Fosroc Renderoc HB45

Renderoc HB45 concrete reinstatement mortar is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a highly consistent, medium-weight repair mortar. It gives good handling characteristics while minimising water demand. The low water requirement ensures good strength gain and long-term durability.

Uses For the reinstatement of reinforced concrete where low permeability characteristics are required and where higher compressive strength is a consideration. Where compatibility with lower strength concrete is required, Renderoc HB30 should be used. Renderoc HB45 has been specificaly developed for the repair of columns and beams, but because of its medium fresh wet density, is also suitable for soffit repairs. Renderoc HB45 is suitable for repair methods 3.1, 3.3, 4.4, 7.1, 7.2 as defined by BS EN 1504-3.

Advantages Maximum compatibility with concrete of compressive strength 35 – 60 N/mm² High-build applications possible while maintaining higher compressive strengths — fewer cold joints Frequently obviates the need for formwork Polymer-modification provides extremely low permeability to water, carbon dioxide and chlorides Exceptional system of shrinkage compensation provides long-term dimensional stability Can be applied quickly and efficiently by wet spraying One component, pre-bagged to overcome site-batched variations Contains no chloride admixtures

Description Renderoc HB45 is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a highly consistent, medium-weight repair mortar. It is based on Portland cements, graded aggregates, lightweight fillers and chemical additives providing a mortar with good handling characteristics while minimising water demand. The low water requirement ensures good strength gain and long-term durability. Renderoc HB45 has been specifically engineered for vertical and overhead repair work. It can be applied in sections up to 40 mm thickness in vertical locations and up to 30 mm thickness in overhead locations in a single application without formwork. Thicker sections can be achieved by the use of formwork or can be built up in layers. Deep pockets can sometimes be filled in a single application dependent on the configuration of the pocket and the volume of exposed reinforcing steel. Renderoc HB45 can be quickly and efficiently applied by the wet spray technique. Consult the local Fosroc office for further information.