microsilica

Product Introduction:

microsilica silica fume is provided by Gansu Lixinyuan Microsilica Co., Ltd.,a major Cement & Sand supplier in Construction & Real Estate wholesale industry in China.You can check out the specification of microsilica silica fume below or get any optional result clicking into the following keywords silica fume , construction , concrete , cement and you can check the authentications and testimonials of microsilica silica fume.

Description:
the silica fume, which is a byproduct of producing silicon metal or ferrosilicon alloys. silicon metal and alloys are produced in electric furnaces. the raw materials are quartz, coal, and woodchips. the smoke that results from furnace operation is collected and sold as silica fume, rather than being landfilled. silica fume consists primarily of amorphous (non-crystalline) silicon dioxide (sio2).

the specification as follows:

physical character: b.e.t fineness: 15 - 27m2/g

bulk density: 350 -400kg /m3 or 550-700kg/m3

pozzolanic activity index: 95％

water requirement ratio: 125％

retained on 45 micron sieve: 10％

moisture: 3％

chemical component: sio285; cl0.02; mgo2.0; fe2o30.9; al2o30.8; cao2.0; k2o2.0; loss on ignition6.0

sio2 content: 85％ -95％

bulk density: undensified 150-200 kg /m3; semi-densified 300-400 kg /m3; densified 550-700 kg /m3

usage: in the concrete project, the quantity according to the application, usually suggest to be mixed into 5-10％ cementation material, together with water reducing reagent.

application: when microsilica being mixed into concrete, can improve the intensity and comparatively; also can resist frost, corrosion and scouring abrasion; and make the concrete get early strength.

if you have any questions, please do not hesitate to contact us.