期刊论文

中文

混凝土与水泥制品

1000-4637

2011

10

18-22

10.3969/j.issn.1000-4637.2011.10.004

2011年湖南农业大学“大学生科技创新基金”；

本校为第一机构

以正交试验设计原理为基础,对影响多孔混凝土植生性能的灰集比、水灰比和掺合料进行试验研究,并进行了配合比优化设计.结果表明:多孔混凝土总孔隙率与连通孔隙率表现出良好的线性相关性,而孔隙率与抗压强度问不存在良好的线性比例关系.掺合料对多孔混凝土pH值的影响次序为:单掺45％粉煤灰＞掺粉煤灰和矿渣微粉各22.5％+5％硅灰＞掺粉煤灰和矿渣微粉各22.5％＞单掺45％矿渣微粉＞单掺5％硅灰；对孔隙率与28d抗压强度的影响次序为:单掺45％粉煤灰＜单掺45％矿渣微粉＜单掺5％硅灰＜掺粉煤灰和矿渣微粉各22.5％＜掺粉煤灰和矿渣微粉各22.5％+5％硅灰.综合考虑多孔混凝土的植生性能,本试验范围内的最...

Based on the principle of the orthogonal design, the influences of cement-aggregate ratio, water-cement ratio and admixtures on the performances of porous concrete for plant-growing are studied, and the design of the optimum mix proportion is carried out. The results indicate that there is a good linearly proportional relationship between the total porosity and connected porosity of porous concrete, but not between the porosity and compressive strength. The effective order of admixtures on pH of porous concrete is as following： 45% fly ash〉22...