Silicon fume 1. Different purity 93%-97% 2. High fluidity, increasing strength 3. Improve consistency 4. Meet ASTM C-1240

93%-97% Microsilica for cement and concrete,construction material

1. Different purity 93%-97%

2. High fluidity, increasing strength

3. Improve consistency

4. Meet ASTM C-1240 

HS No.: 28112200 China Origin, microsilica meets the requirements of ASTM C-1240.Microsilica CAS #: 69012-64-2

Main function

Microsilica in refractory enhancing the fluid of pouring refractory, reducing the volume of used water, be easy to shape, and raising the production efficiency. Because of its ultra microstructure for gap filling, the compact and intensity of refractory gain rising by a wade margin. Microsilica in refractory is a highly effective pozzolanic material, so it's easy to come into being Mullet Phase, under the premise that Al2O3 exists, enhance elevated temperature strength and thermal shock of refractory.Microsilica in refractory is used in Microsilica in refractory is used in unshaped,shaped  gunned refractory materials to improves adhesion in castables and minimizes rebound loss.

Parameters	Standard Value
Silicon Dioxide(SiO2)	min 93 %
Loss on Ignition(L.O.I) @ 975°C	max 1.8 %
Moisture Content (H2O)	max 1 %
Percent Retained On 45μm (325 sieve)	max 1 %
Bulk Density	250-300kg/m3 and 600-800kg/m3

93%-97% Microsilica for concrete of refractory