Viscosity modifier with plasticizing effect for highly flowable concrete
BATIMIX VMA 520-S is a ready-to-use liquid admixture designed to modify the viscosity of fresh concrete. It is blended with polycarboxylate-acid polymers to ensure concrete workability is not significantly reduced.
BATIMIX VMA 520-S enhances the cohesiveness of highly flowable concrete. It reduces the risk of material separation during casting and until the onset of hardening. Its water-soluble polymers are characterized by their long-chains of complex forms that adhere to the periphery of mixing water molecules in a cement paste. The chains can intertwine and develop attractive forces through hydrogen bonds and polymer entanglements, resulting in increased plastic viscosity and yield stress even in mixtures with high water-cement ratios. Applications include all types of plain and reinforced concrete castings such as highly flowable concrete, self-consolidating concrete, and shotcrete.
Concrete prepared with BATIMIX VMA 520-S is characterized by the following:
In the plastic state:
In the hardened state: