人民黄河2016，Vol.38Issue(7)：92-94,3.DOI:10.3969/j.issn.1000-1379.2016.07.023
胶凝材料对胶凝砂砾石材料抗压强度的影响
Study on the Effect of the Amount of Cementitious Materials on the Compressive Strength of CSG Material
摘要
Abstract
In view of the characteristics of CSG material of low cement content and much fly ash content, it studied the effect of low cement content and fly ash content on the early stage of the material and the influence of the late strength was very important. Through a large number of experimental studies on the different amount of cement, fly ash content and different age period of CSG materials, the strength interval of materials with different cementitious materials, the fly ash of the optimal mixing and the fly ash amount of materials later strength influences were obtained. The compressive strength of the material can be increased by 20%⁃15% with the increase of the amount of cement per 10 kg. When the amount of fly ash is 50% of the total amount of cementitious materials ( cement+fly ash) , it is the"optimal dosage", at this time the intensity of peak. When the amount of fly ash is 40% of the total amount of cementitious materials ( cement+fly ash ) , it is the"economical dosage" and the efficiency of adding fly ash to increase strength is the highest. In the CSG materials, with the increase of fly ash content, the compressive strength of the material is improved, which has little influence on the early (28 d) strength;The amount of fly ash is increased by 10 kg, and the strength of the latter ( 90 d) increases by about 18%⁃5%, and its effect decreases with the increase of sand ratio.关键词
胶凝材料/水泥/粉煤灰/抗压强度Key words
cementitious material/cement/fly ash/compressive strength分类
建筑与水利引用本文复制引用
杨世锋,柴启辉,孙明权..胶凝材料对胶凝砂砾石材料抗压强度的影响[J].人民黄河,2016,38(7):92-94,3.基金项目
水利部公益性行业科研专项（201301025）。 （）
