矿用黄土、风积砂充填材料性能试验研究Experimental study on the performance of loess and aeolian sand filling materials for coal mine
李鹏飞;曹晓凡;唐胜利;周阳;尚慧;
摘要(Abstract):
针对陕北某煤矿充填开采需要研制质高价廉充填材料的问题,对以黄土和风积砂作为骨料,粉煤灰和水泥作为胶凝材料开展充填材料试验研究,并对最优充填体水化过程及水化产物进行了热重分析.研究确定了充填材料组分的最优质量配比和料浆质量分数;对最优充填体7 d、28 d的强度、水化产物、胶结结晶程度进行了对比分析.
关键词(KeyWords): 充填开采;黄土;风积砂;配比试验;热重分析
基金项目(Foundation): 国家自然科学基金(41702377);; 中国博士后科学基金(2017M623208);; 陕西省自然科学基础研究计划项目(2017JQ4008)
作者(Authors): 李鹏飞;曹晓凡;唐胜利;周阳;尚慧;
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