black microsilica【价格 厂家 供应】-pg电玩城

black microsilica: the appearance is black powder, the content of sio2 is 85~94%, and most of them are highly encrypted products, which can be applied to large concrete projects, mortar, ground floor, pipe piles, etc. as necessary admixture, it is our company's main export product, which is well received by overseas customers. the grade can be further subdivided into 900d,920d and 940d.

the microsilica can fill the pores between the cement particles, and at the same time, form gels with the hydration products, and react with the alkaline material magnesium oxide to form gels. in the cement based concrete and mortar, the addition of appropriate amount of silica fume can play the following role:

1. significantly improve the anti-pressure, anti-folding, anti-permeability, anti-corrosion, anti-impact and anti-wear properties

2. it can protect water, prevent segregation, bleed water and greatly reduce concrete pumping resistance

3. significantly extend the service life of concrete. especially under the harsh environment of chlorine salt pollution erosion, sulfate erosion and high humidity, the durability of concrete can be doubled or even multiplied

4. substantially reduce the landing dust of sprayed concrete and castable, and increase the thickness of single spraying layer

5. as a necessary component of high-strength concrete, c150 concrete has been applied in engineering

6. it has the effect of about 5 times of cement (application in ordinary concrete and low-cement castable can reduce cost and improve durability)

7. effectively prevent the occurrence of concrete alkali aggregate reaction

density of black microsilica silica ash: original state: 150-180kg /m3; semi-encryption 300-350kg /m3; high encryption, 500-750 kg/m3

black microsilica silicon ash packaging: 25kg woven bag packaging; 300-1000kg bag packing.