what is the role of microsilica activity data-pg电玩城

in fact, the questions i'm going to talk about today are related to each other and closely related to each other. that is to say, when using the microsilica, the activity value of the microsilica is used, and only the higher activity value of the microsilica has a greater use value. what is the activity data of silicon powder?

microsilica has relatively high activity. at the same time, it is applied to fill the void of particles in cement concrete to increase volume density, increase strength and reduce porosity, so as to reduce water and enhance strength. this is the working principle of micromicrosilica.

the microsilica can fill the pores between the cement particles, and at the same time form gels with the hydration products, and form gels with the alkaline material magnesium oxide. in the concrete, mortar and refractory castable of cement base, the addition of appropriate amount of microsilica silica ash can reduce water and enhance the effect. in fact, this is the main characteristic of the microsilica, because it not only has high volcanic activity, but also has relatively large surface area. because the fineness of microsilicon powder is less than 1um, accounting for more than 80%, the average particle size is between 0.1 and 0.3um, and the specific surface area is 20 ~ 28m2/g. its fineness and specific surface area are about 80 ~ 100 times of cement and 50 ~ 70 times of fly ash. so that's it.

micromicrosilica has strong activity, can form colloid particle in water, add right amount dispersant, can enhance fluidity, improve pouring performance thereby. because the silicon powder has the above important activity index, the silicon powder is widely used in refractories, cement concrete, ceramics and other materials. silicon powder can be used to reduce water, enhance and lubricate, etc. besides, it can also reduce the amount of cement.