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    MasterRheobuild 859 - A high range, water-reducing superplasticiser for concretes containing GGBS and microsilica 


    MasterRheobuild 859 is formulated from synthetic polymers specially designed to impart rheoplastic qualities to concrete, particularly those containing GGBS and microsilica. 

    A rheoplastic concrete is a fluid concrete with a slump of at least 200mm, easily flowing, but at the same time free from segregation and having the same w/c ratio as that of a low slump concrete (25mm) without admixture. 

    MasterRheobuild 859 is chloride-free

    Where is MasterRheobuild 859 applied?

    • Mixes containing GGBS or microsilica
    • Mass concrete pours 
    • Ready-mixed concrete 
    • Pumped concrete 
    • Casting in hot climates 

    What are the advantages of MasterRheobuild 859?

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

    Product Information

    Technical Data Sheet


    MasterRheobuild 859 TDS

    pdf (318,58 Kb)

    Info & price request

    Address: Cairo Festival City, Building A1 Business District, 1st Floor 11835 Cairo, Egypt​

    Hotline Phone: 15560​