MasterRheobuild 857S - High range, water reducing superplasticiser for concretes containing GGBS and microsilica
What is MasterRheobuild 857S?
MasterRheobuild 857S is formulated from
synthetic polymers specially designed to impart
rheoplastic qualities to concrete, particularly those
containing GGBS or microsilica.
A rheoplastic concrete is a fluid concrete with a
slump of at least 200 mm, easily flowing, but at the
same time free from segregation and having the
same water/cement ratio as that of a low slump
concrete (25mm) without admixture.
MasterRheobuild 857S is chloride free.
Which are MasterRheobuild 857S main advantages?
MasterRheobuild 857S considerably improves
the properties of fresh and hardened concrete.
What is MasterRheobuild 857S used for?
MasterRheobuild 857S is primarily used for:
- Mixes containing GGBS or microsilica
- Mass concrete pours
- Ready mixed concrete
- Pumped concrete
- Casting in hot climates
- High workability for longer periods
- Lower pumping pressure
- Delayed setting with longer workability
- Higher ultimate strengths
- Reduced permeability
- Improved durability
Technical Data Sheet