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通过对现代混凝土的全面认识,抓住现代混凝土普遍掺入矿物细粉掺合料和高效减水剂的特点,本文从混凝土的各组成材料的关系和性质及其作用和影响等方面入手,运用混凝土各组成材料在满足拌合物和易性的前提下紧密堆积的原理,理出了现代混凝土配合比设计思路。沿着设计思路,确定水胶比、浆骨比、砂率和矿物掺合料在胶凝材料中的比例,结果表明该设计思路具有很强操作性和现实指导意义。
Through the comprehensive understanding of modern concrete, grasping the characteristics of modern concrete generally mixed with mineral fine powder admixture and superplasticizer, this article from the concrete composition and the nature of the relationship between the material and its role and influence, etc., The composition of concrete in the premise of meeting the workability of the mixture under the premise of close packing principle, out of the modern concrete mix design. According to the design idea, the ratio of water to binder, mortar ratio, sand ratio and mineral admixture in cementitious materials were determined. The results show that this design idea has strong operational and practical significance.