Construction of coke oven and dimensional accuracy of sealing of coke oven,operation stability and energy conservation, environmental protection, and lifespan have close to the operation factors, good good dimensional accuracy and fire clay brickrelations, and to get a good construction dimension precision, in addition construction is the most basic conditions (arge capacity coke oven because of the huge volume, complex structure, construction geometry accuracy is higher, which requires the construction of fire clay must be better.The siliceous fire clay developed by our company has good spreading performance, adhesion performance, water retention performance and excellent high temperature performance, as well as volume stability.