砂灰比 meaning in English

sand cement ratio

The influence of the material composites factors , such as fiber volume fractions , fiber aspect ratio , cementitious - sand ratio and the admixture for interface tailoring , on the properties of pva - dfrccs is studied . these properties that have investigated include workability , mechanical properties , deformability and durability
研究并分析了材料组成参数( pva纤维体积率、纤维长径比、界面改性剂和砂灰比等)对高强高弹pva纤维增强水泥基材料( pva - dfrcc )的工作性能、力学性能、变形性能及耐久性的影响。