RB 5.07 Lightweight Grout

5.07 Lightweight Grout is a premixed, ready to use, low density grout powder. Lightweight Grout consists of a blend of cement powders, shrinkage compensating agents, graded lightweight aggregates, and a combination of compatible admixtures. The powder, when mixed with water, produces a lightweight, free flowing grout which is easily mixed, pumped and placed. The grout is specially designed to be low in weight, and to penetrate and fill large volume voids that require a low density material. The grout powder is packed in 25kg valve bags, or 1 tonne bulk bags, and has a shelf life of 12 months.


  • Premixed and ready to use.
  • Quickly and easily mixed with water.
  • Can be designed and supplied to produce a density of between 750 to 1800kg/m3.
  • Portland cement based, shrinkage compensated, microsilica enhanced.
  • The grout will not segregate or bleed, is readily pumpable and self compacting.
  • Excellent insulator, and a poor conductor of heat and sound.
  • Resistant to fire, non flammable and will not give off toxic gases.
  • Contains no chlorides, high alumina cement or deleterious substances.
  • High yielding and economical to use.
  • High yielding, economical, non flammable, non toxic, odour free, user friendly and safe to use.USES:
  • Whenever a low weight, high flow material is required.
  • For the installation of lightweight concrete structures.
  • Compatible repairs to lightweight cementitious materials, concrete, bricks and blocks.
  • For use as a large, lightweight volume void filler.
  • To form and manufacture low density, precast concrete products and lightweight artefacts.
  • To fill areas that require a low heat material.
  • To protect steel and concrete structures from fire and heat.
  • To thermally insulate buildings and walls on the inside or outside.
  • As an insulating infill around pipes and ducts.
  • To minimise condensation on walls and ceilings.
  • To acoustically insulate rooms or areas to reduce noise and sound.