On the base of experiment & study of tile influence of different gypsum on performance of portland - sulphoalminate composite cement system as set time , water requirement of normal consistence , strength , ect , the influence mechanism was discussed 摘要在試驗(yàn)研究不同石膏品種對硅酸鹽硫鋁酸鹽復(fù)合體系水泥凝結(jié)時間、標(biāo)準(zhǔn)稠度需水量、強(qiáng)度等性能影響的基礎(chǔ)上,探討了石膏品種對硅酸鹽硫鋁酸鹽復(fù)合體系水泥性能的影響機(jī)理。