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1水胶比定则的意义和作用水灰(胶)比定则是1918年Abrams提出来的,是混凝土配合比设计的基础。它阐明了水和胶凝材料的质量比与混凝土抗压强度之间的依赖关系,利用这个定则就可以根据混凝土配制强度确定水胶比。当水胶比在0.4～0.8之间时,混凝土强度与水胶比之间是近似直线的关系,实际上在更大范围内这种线性关系也是存在的。JGJ55—2011《普通混凝土配合比设计规程》中,5.1.1公式(以下简称规程511公式)
1 Significance and role of water-binder ratio rules The water-cement ratio rule, proposed by Abrams in 1918, is the basis for concrete mix design. It illustrates the dependence of the mass ratio of water to cementitious material on the compressive strength of concrete. Using this rule, it is possible to determine the water-cement ratio based on the strength of the concrete. When the water-cement ratio is between 0.4 and 0.8, the relation between the concrete strength and the water-cement ratio is an approximate straight line. In fact, this linear relationship exists in a wider range. JGJ55-2011 “Ordinary concrete mix design rules”, 5.1.1 formula (hereinafter referred to as the formula 511 formula)