VCAS Pozzolan 50Lb bag (801486)
VCAS is a pure white pozzolan. Pozzolans are value-added supplementary cementing materials that exhibit pozzolanic activity. Comparable to fumed silica and metakaolin when tested in accordance with ASTM C618 and ASTM C1240. Size: 50 Lb bag|
Pozzolan¬†is a material which, when combined with¬†calcium hydroxide, exhibits¬†cementitious¬†properties. Pozzolans are commonly used as an addition (cement extender) to¬†Portland cement¬†concrete mixtures to increase the long-term strength and other material properties of Portland cement concrete, and in some cases reduce the material cost of concrete. Pozzolans are primarily¬†vitreous¬†siliceous materials which react with calcium hydroxide to form¬†calcium silicates; other cementitious materials may also be formed depending on the constituents of the pozzolan.