But in later period of hydration, the active Al2O3 and SiO2 react with the hydration products to form C-S-H gel and Aft filling the pores of paste to make the structure of cement paste compact thus contributing to the strength development of cement.

• 但在水化后期，偏高岭土中的活性组分Al_2O_3和SiO_2与水泥熟料矿物水化产物反应生成C-S-H凝胶和AFt，填充于浆体孔隙中，从而使水泥浆体结构趋于致密，有利于水泥强度的增长。