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1相关概念(1)减水剂:在保持混凝土坍落度基本相同的条件下,能减少拌合用水的外加剂。(2)水灰比定则:混凝土28d抗压强度与水灰比的线性关系。(3)水灰比:混凝土中用水量与水泥用量的质量比。(4)水胶比:混凝土中用水量与胶凝材料用量的质量比。2问题焦点(1)减水剂的应用对使用水灰比定则的影响。
1 Related concepts (1) water reducer: to maintain the same slump concrete conditions, can reduce the admixture of mixing water. (2) Water-cement ratio rule: linear relationship between compressive strength of concrete 28d and water-cement ratio. (3) water-cement ratio: the mass ratio of water used in concrete and cement content. (4) water-cement ratio: the mass ratio of water used in concrete and the amount of cementitious material. 2 issues (1) the use of water-reducing agent on the use of water-cement ratio rules.