28 关键词 新拌混凝土 容重 含气量 水灰比 [gap=7001]Key words: fresh concrete; density; air content; water-to-cement ratio
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When the water to cement ratio is 0.5, the crystal of calcium hydroxide in the cement paste cured in 20 cecius degree for 180 days is about 24%.
当水灰比为0.5,常温养护180天时,氢氧化钙晶体含量约为24%。
参考来源 - 水泥石的干燥收缩及其微观机理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Experimental results show that the compressive strength of concrete is closely related not only to the water-to-cement ratio, but also to the crushing value of aggregate.
试验结果表明，混凝土抗压强度不仅与水灰比密切相关，而且与骨料压碎指标有关。
The essence of concrete framework theory is to deduce the cement dosage of unit volume concrete from frame-mortar ratio, unit water dosage and deviated function of cement-sand ratio.
混凝土架构设计理论的实质，是通过架浆比、单位用水量以及砂灰比偏离三个参数推求单位水泥用量的过程。
The effect of the amount of fiber, the length of fiber, the ratio of water to cement on tensile strength, shear strength, compressive strength and elastic modulus was investigated.
研究了纤维掺量、纤维长度、水泥土的水灰比等对纤维水泥土的抗折强度，抗压强度，抗拉强度和弹性模量的影响。
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