Mineral admixtures are mostly derived from other substances and not chemically manufactured. Mineral admixtures make concrete mixtures more cohesive, economical, reduce permeability, increase strength, and influence other properties of concrete. Mineral admixture impacts the nature of the hardened concrete through hydraulic activity or pozzolanic activity. Pozzolanas are cementitious materials and…
What is Silica Fume? Its Advantages and Disadvantages
Silica fume is a byproduct from the production of elemental silicon or alloys containing silicon in electric arc furnaces. At a high temperature of 2000oC (approx) the reduction of high-purity quartz to silicon produces silicon dioxide vapor, which condenses at low temperatures and oxidizes to produce silica fume. Silica fume…
