论文部分内容阅读
介绍用连槽碎石中含有约２０％的５ｍｍ以下石屑来改善特细砂的级配和细度模数，以及采用掺粉煤灰、掺外加剂的双掺技术配制特细砂高强混凝土的技术路线。并通过对影响强度因素的大量对比试验结果分析，提出了确定Ｃ５０～Ｃ６０级特细砂高强混凝土配合比的各项参数。
Introduce that about 20% of stone chips below 5mm are used in channel gravel to improve the gradation and fineness modulus of ultra-fine sand, and to use super-fine sand and high-strength concrete with double-blend technology with fly ash and admixture additives. The technical route. Through the analysis of a large number of comparative test results that affect the factors of strength, various parameters for determining the mix ratio of C50-C60 superfine sand high-strength concrete were proposed.