人民黄河2016，Vol.38Issue(7)：86-88,3.DOI:10.3969/j.issn.1000-1379.2016.07.021
胶凝砂砾石材料抗压强度影响因素研究
Study on the Influence Factors of Compressive Strength of CSG Material
摘要
Abstract
As a new type of dam materials, the mechanical properties of CSG material are significantly affected by cement content, fly ash content, water binder ratio, sand ratio, aggregate gradation and age factors. In order to explore the influences of various factors on the compressive strength of the material, through a lot of experiments, this paper studied the variation laws of compressive strength and water cement ratio, sand ratio, cement content, fly ash content and other factors. When the engineering common sand ratio is in the range of 0.1⁃0.4, the optimal sand ratio is 0.2, corresponding to the optimal water binder ratio between 1.4 and 1.0. When the sand ratio is high, the upper bound of the optimal water binder ratio should be taken, and the lower value of the optimal water binder ratio is taken when the sand ratio is low. When the optimal sand ratio is 20%, the optimal water binder ratio is about 1.1. In every cubic meter of CSG materials, cement content increases by 10 kg, the 28 d compressive strength of the cube can increase by 15%⁃20%. With the increase of fly ash content per 10 kg, the compressive strength of cubic 28 d is increased, and the increase range is between 10% and 1%. The effects of specimen size and aggregate gradation on the compressive strength of the material are significant.关键词
胶凝砂砾石/抗压性能/影响因素/力学特性Key words
CSG/compression performance/influence factors/mechanical properties分类
建筑与水利引用本文复制引用
柴启辉,杨世锋,孙明权..胶凝砂砾石材料抗压强度影响因素研究[J].人民黄河,2016,38(7):86-88,3.基金项目
水利部公益性行业科研专项（201301025）。 （）
