Bemsun supply Micro silica, densified Micro silica, undensified Micro silica, Micro silica additive in cement, conrete
1. What is the Cement Microsilica Microsilica, also called as silica fume, silica dust, which is a by-product of producing silicon metal or ferrosilicon alloys.
Microsilica consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2). Because of its fine particles, large surface area, and the high SiO2 content,
2. Micro silica Performance in Cement Micro silica can fill the pores of cement particles and generate gel with hydration products and then magnesium oxide reacts with alkaline gel material.
Micro silica is used as an admixture for cement-based concrete, mortar, refractory castable. When you mixed the proportion
amount of microsilica in cement-based concrete, mortar, refractory castable, then it can provide you pefect peformance
as following:
A. Significantly increased compression, bending, impermeability, anticorrosive, anti-shock and wearable for cement-based concrete, mortar, refractory castable.
B. With water retention, prevent segregation, bleeding, and significantly reducing the role of concrete pumping resistance
C. Significantly extend the service life of concrete. Especially used in chloride, polluted erosion, sulfate attack, high humidity and other harsh environments, can improve the durability of concrete double or even several times
D. Significantly reduction in jet landing castable concrete and ash, rasie a single spray layer thickness.
E. Is the necessary component of high-strength concrete and have already applied in C150 cement-based conrete
F. With above five times the efficacy of cement, can improve the durability and lower the cost in ordinary cement concrete castable
G. Effectively prevent the occurrence of concrete alkali aggregate reaction
H. Improve the compactness of cast refractory material. When coexist with Al2O3, more easy to generate mullite phase and enhance its high temperature strength, thermal shock resistance
3. Cement Micro Silica Grade 92 Specification: SiO2 : 92% min
LOI : 3% max
Moisture : 2.5% max
SO3 : 2% max
MgO : 5% max
Density : 500– 700 Kg/m3
+45 Microns : 5% max
Standards : as per ASTMC 1240
BEMSUN, the local producer for Micro silica in China. With Microsilica Additive in cement and concrete, build a durable future into the infrastructure of seaport, high building, reservoir dam, Railway, driver road, bridge, metro, tunnel, airport runway, coal lane and etc
