The effects of desulphurize ash containing more CaSO3 on the setting time of cement clinker with various content of C3A and C4AF were studied.

• 研究了亚硫酸钙含量较多的脱硫灰对C_3A和C_4AF含量不同的水泥熟料凝结时间的影响。研究结果表明:亚硫酸钙对C_4AF有缓凝作用,而对C_3A基本不具缓凝作用;