Heavy Density Silica Fume for office building cement

heavy density silica fume for office building cement (90% 92% 95% 98%).This Silica Fume is commonly added to cement used in the construction of office buildings to increase the strength and other properties of the cement.Microsilica is a fine powdered substance, mainly composed of substances such as silicon oxide and alumina, which is able to react with compounds in cement through the action of active particles. Silicate reaction is one of the most important reactions, which can promote the transformation of substances in the cement reaction process, thus improving the strength and durability and other properties of cement.silica fume usually plays an important role in cement as a mineral admixture. This is because silica fume has the characteristics of high activity, large fineness, high silica content, etc., which can promote the reactivity of mineral admixture. Through the incorporation of silica fume, the activity of cement mineral admixture can be improved and its reactive activity can be promoted, thus improving the properties of concrete such as strength and durability.