Product Details

Best price china supplier buy micro silica fume

Product Description

Silica fume, also known as micro-silica, It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production (CAS number 69012-64-2, EINECS number 273-761-1),it has extremely strong surface active, its average particle diameter 0.1-0.15um,Specific surface area is 15-27m2/g.

Technical Data
Test Item	Standard	Result	Standard	Result	Standard	Result	Standard	Result
Test Item	SF85		SF90		SF94		SF96
SiO2 (%)	85% min	87.94%	90% min	92.05%	94% min	95.46%	96% min	97.68%
Fe2O3 (%)	2.0% max	0.47%	2.0% max	0.57%	2.0% max	0.04%	2.0% max	0.02%
Al2O3 (%)	2.0% max	0.42%	2.0% max	0.51%	2.0% max	0.27%	2.0% max	0.18%
CaO (%)	2.0% max	0.51%	2.0% max	0.64%	2.0% max	0.11%	2.0% max	0.05%
Na2O (%)	2.0% max	0.63%	2.0% max	0.58%	2.0% max	0.41%	2.0% max	0.10%
Moisture (%)	2.0% max	0.50%	2.0% max	0.74%	2.0% max	0.34%	2.0% max	0.38%
Loss On Ignition (%)	3.0%max	1.47%	3.0%max	2.43%	3.0%max	1.42%	3.0%max	1.01%
Bulk Density ( Densified )	550-700kg/m3	650 kg/m3	550-700kg/m3	650 kg/m3	550-700kg/m3	650 kg/m3	550-700kg/m3	650 kg/m3
Bulk Density (Unidensified)	300-380kg/m3	330 kg/m3	300-380kg/m3	330 kg/m3	300-380 kg/m3	330 kg/m3	300-380 kg/m3	330 kg/m3
Description	Best price china supplier buy micro silica fume

According to the SiO2 content, our products can arrange form grade 85% to grade 97%. According to the bulk density, we can divide our products into densified silica fume and undensified silica fume.

Application

The application of our Best price china supplier buy micro silica fume as below:

(1). Silica fume in Concrete:

Can increacing strength, density, frost resistance, early strength, abrasion resistance performance, anti-cavitations.

(2). Silica fume in Cement:

Can Strengthen the fibre cement product.

(3) Silica fume is used in refractory:

Can Greatly improve products strength and high temperature performance.

(4) Other Applications for Silica Fume:

A. Rubber industry B. Anti-caking industry

C. Pellet binder D. Waterglass industry