Semi-encrypted silica fume for bank concrete

Semi-encrypted silica fume for bank concrete: This semi-crystallised Microsilica is commonly added to concrete used in the construction of banks to increase the fire and frost resistance of the building.

micro silicon powder as an admixture for the concrete industry is the earliest research, the most results, the most widely used in the comprehensive use of foreign Silica Fume in a field. Due to the fine particles of silica fume, large specific area, with strong volcanic ash activity and other physicochemical characteristics, the silica fume as an admixture into the concrete, can significantly improve the performance of concrete.
Influence on the mechanical properties of concrete
Inside the freshly mixed concrete, a large number of capillaries are produced inside the concrete due to water secretion, which leads to the decrease of concrete strength. After adding silica fume, due to the large surface area of silica fume, a large amount of capillary water inside the concrete is constrained by silica fume, which reduces the water secretion inside the concrete and improves the bonding of cement paste with aggregates and steel bars.

Influence on the durability of concrete
Impact on concrete abrasion resistance
Improve the impermeability and frost resistance of concrete.
Resistance to alkali aggregate reaction