High watercementratio during construction and low watercementratio during solidification are realized.
实现了混凝土大水灰比施工、小水灰比固化。
2
By controlling the range of the dry density, magnitude of cement and watercementratio of mixture, the requirement of drainage property and structure strength can be fulfilled.
通过控制混合料的干密度、水泥用量和水灰比的取值范围,可使混合料同时满足排水性能要求和结构强度要求。
3
The influence of different superplasticizers on drying shrinkage of mortar with the same watercementratio and same sand cement ratio was investigated in this article.