company name: gansu lixinyuan microsilica co. ltd
contact person: manager sun
telephone: 0931-8516622
phone: 18919161001
email address: microsilica@gslxy.cn
fax: 0931-8507755
website: www.gslxy.cn
address: no. 2599, yanbei road, chengguan district, lanzhou city, gansu province
microsilica (or silica fume) is amorphous, powdered sio2 collected by specially designed dust collectors after the oxidization of silicon steam through smoke flue during the smelting of silicon iron and industrial silicon. the average particle size of microsilicais 1% of the average particle size of cement at a value of 0.1-0.15 m. the specific surface area is 15-27 m2/g, with strong surface activity.
according to the sio 2 content index, our products are divided into five specifications: 85%, 88%, 90%, 92% and 95%.
microsilica manufacturer microsilica price
transmission electron microscopy (tem) morphology:
microsilica can be used as the admixture of cement or concrete, because of micro microsilica small enough, it can be filled with cement intergranular pore, and its chemical properties are also suitable for mixing all used when direct solidification, under the influence of water to generate gel, and a microsilica concrete will more than no cement compressive strength, and wear resistance, good water retention, increase the service life of concrete. because of its silica properties, it is very refractory and is often used as a refractory additive. water is always magical. when the microsilicaencounters water, it can make pellets. when the pellets are dried, they can be recycled back into the furnace as smelting material.
of course, the application of microsilica is also very wide, such as cement, concrete, refractories, rubber, chemical dispersant, and so on. but it is popular in the material industry, because of its refractory and wear-resistant properties, can be used to make ceramics, heat insulation materials, wear-resistant materials, and so on. generally in microsilica fireproof property of the material it can increase to 100 ℃, its wear resistance can be increased by twenty percent. there is also a large use, is used in mortar and concrete, can be built to the building floor, pier, road and other public facilities, security. used as a reinforcing material for organic compounds. because its composition and gas - phase production of white carbon black similar. can be used in rubber, resin, paint, paint, unsaturated polyester polymer materials used as filler materials.