The role of wollastonite as a ceramic raw material is mainly reflected in the following four aspects:
One is to lower the firing temperature and shorten the firing cycle;
The second is to reduce burning shrinkage and product defects;
The third is to reduce the moisture absorption and thermal expansion of the billet during the firing process;
Fourthly, it can improve the mechanical strength of the product.
Silica fume (or microsilica) is a by-product from the production of elemental silicon or ferrosilicon alloys in electric arc furnaces. High chloride levels primarily stem from impurities introduced du···
The use of silica fume in refractory castables provides better particle packing. It allows for less water to be used while maintaining the same flow characteristics. It also promotes low temperature s···
Silica fume is used in a variety of cementitious repair products. Mortars or grouts modified with silica fume can be tailored to perform in many different applications—overhead and vertical mort···
