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    Sikament® RB 561 (formerly known as MasterRheobuild® 561) - A Superplasticising admixture to produce low slump loss rheoplastic concrete

    How does MasterRheobuild 561 work?

    MasterRheobuild 561 is a chloride free, read-to-use, liquid admixture comprising of synthetic polymers specially designed to impart low slump rheoplastic qualities to concrete. Rheoplastic concrete is a fluid concrete with a slump value of at least 200mm, easily flowing but at the same time free from segregation and having the same water/cement ratio as that of a no-slump concrete without additive.

    Recommended uses:

    • Mass-concrete
    • Read-mixed concrete
    • Long distance transport
    • Pumped concrete
    • Hot weather concreting
    • Use with all cements and air-entraining admixtures approved under ASTM, AASHTO, CRD & BSI.

    What are the features and benefits of MaterRhebuild 561 ?

    • Very high workability - short placement time. Saves time and labour.
    • High water reduction - high impermeability and strength. Improves durability.
    • Superior cohesion - no segregation even at high workability. Excellent concrete quality.
    • Low shrinkage and creep - better dimensional stability.