Renderoc HBS

Description

Renderoc HBS 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 which provide a mortar with good handling characteristics while minimising water demand. The low water requirement ensures good strength gain and long-term durability. It can be applied in sections up to 60 mm thickness in vertical locations and up to 50 mm thickness in overhead locations in a single application without the use of 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. The material should not be applied at less than 10 mm thickness.

Uses

For the compatible reinstatement of defects in high strength reinforced concrete structures. Renderoc HBS is particularly suited to the repair of vertical surfaces and, because of its relatively low fresh wet density, can also be used for overhead repairs.

Advantages

 Compatible 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 and carbon dioxide

 Shrinkage compensated to provide long-term dimensional stability

 One component, pre-bagged to overcome site-batched variations

 Contains no chloride admixtures