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    ​​Sikament® RB 856 (formerly known as MasterRheobuild® 856) - A high range, water reducing superplasticiser for concretes containing GGBS 

    How does MasterRheobuild 856 work?

    MasterRheobuild 856 is a ready-to-use, high range water-reducing admixture designed to produce high slump concrete with workability retaining properties. The product is chloride free. 

    What is MasterRheobuild 856 used for?

    • ​Mixes containing GGBS and Micro Silica 
    • Mass concrete pours 
    • Ready mixed concrete 
    • Pumped concrete 
    • Casting in hot climates 

    To obtain: 

    • Reduced thermal peaks 
    • High workability for longer periods 
    • Lower pumping pressure 
    • Delayed setting with longer workability 
    • Higher ultimate strengths. 
    • Reduced permeability 
    • Improved durability 

    What are the advantages of MasterRheobuild 856?

    MasterRheobuild 856 considerably improves the properties of fresh and hardened concrete. ​



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