水利水电科技进展2016，Vol.36Issue(4)：75-79,5.DOI:10.3880/j.issn.1006-7647.2016.04.014
类砂岩相似材料配合比方案试验研究
Experimental study on ratio of quasi-sandstone similar material
摘要
Abstract
Taking the middle grained sandstone in the Cretaceous as simulation object, fine sand, high strength cement, fine gypsum, iron powder and distilled water were used as raw materials to configure the quasi-sandstone similar samples. According to the orthogonal experiment method, the design scheme was determined with the water-cement ratio, the ratio of aggregate to cement and the iron powder content being controlling factors, and the influence of these factors on saturation density, acoustic wave velocity, heat conduction coefficient and uniaxial compressive strength was analyzed with the range sensitive analysis method. Experiment results show that the ratio of aggregate to cement plays a leading role in saturation density, acoustic wave velocity and uniaxial compressive strength. The saturation density and acoustic wave velocity obviously decrease with the increase of the ratio of aggregate to cement. Meanwhile, the iron powder content has a governing effect on the thermal conduction coefficient, and the thermal conductivity obviously increases with the increase of the iron powder content. Through multiple linear regression analysis, the optimal mass ratio scheme of the sandstone material was deduced, which meant the water-cement ratio was 0. 53, the ratio of aggregate to cement was 0. 45 and the iron powder content was 4. 2%. The physics and mechanics parameters of the quasi-sandstone using this similar material ratio are very close to that of sandstone in the Cretaceous.关键词
类砂岩相似材料/正交试验/敏感性分析/多元线性回归/最优质量配合比Key words
quasi-sandstone similar material/orthogonal experiment/sensitivity analysis/multiple linear regression/optimal mass ratio分类
建筑与水利引用本文复制引用
申艳军,荣腾龙,杨更社,袁延召,杨阳,余翔..类砂岩相似材料配合比方案试验研究[J].水利水电科技进展,2016,36(4):75-79,5.基金项目
国家自然科学基金(41302228) （41302228）
中国博士后科学基金(2014T70931) （2014T70931）
陕西省博士后科学基金(2014051) （2014051）
