The activatory coal gangue powder ( acgp ) , ground cement clinker and natural gypsum are mixed by different ratios to prepare blended cement specimens , and its mortar compressive strength performance , water usage for standard consistency , and flowability of mortar are investigated 摘要将经燃烧等过程进行活化处理的煤矸石细粉与磨至一定比表面积的水泥熟料及天然生石膏混合均匀，制成了活化谋矸石粉掺量比例不同的多组混合水泥，并对其胶砂强度性能、标准稠度用水量、胶砂流动度进行了实验检测。
Since pump high - flowability concrete commenced in late 70 ' s , it has been put to extensive application due to its advantages of fast , high - efficiency and stable quality . but its high flowing property and pumpability also cause some negative effects , such as serious shrinkage cracks at early age , which arouses wide social concern 泵送高流态混凝土自从70年代末期产生以来，以其快速高效、质量稳定等特点得到了广泛的应用，但它的高流动性和可泵性也产生了一些负面作用，如早期收缩开裂现象比较严重，引起了社会的普遍关注。
