矿山最佳充填材料—细石混凝土的特性

• 作 者: 李普礼 高春霞
• 机 构: 甘肃金川镍钻研究所,甘肃金川镍钻研究所,
• 出 处: 有色矿山
• 发表日期: 1985年05期
• 关键词: 细石混凝土 充填材料 胶结充填 水泥用量 管道输送 砂率 细砂 最佳级配 混凝土配比 工业性试验

金川高浓度细砂胶结充填工艺工业性试验,通过鉴定,在生产中收到了经济效益。在此基础上,又对细石混凝土做为充填材料进行了探索,试验结果表明,细石混凝土不但适宜管道输送(泵送或靠自重自流输送),而且比起细砂胶结充填材料有更多的优点。第一,细石混凝土强度高,在水泥单耗相同情况下,强

Jinchuan high concentration fine sand cementation filling industrial test, through the identification, received in the production of economic benefits. On this basis, the fine-grained concrete is also used as the filling material. The test results show that the fine-grained concrete is not only suitable for pipeline transportation (pumping or self-gravity self-conveying), but also has more advantages than fine sand cemented filling materials The advantages. First, the strength of fine-grained concrete, cement consumption in the same circumstances, strong