TY -的A2 Yilmaz Erol盟——张Youzhi AU -甘,盟——雪,德清Zhenlin盟——陈,荀AU -胡,盛PY - 2020 DA - 2020/11/12 TI -效应最初的空气含量新鲜泥浆胶结硬化浆体抗压强度的回填SP - 8838572六世- 2020 AB -充填采矿方法可以处置尾矿充填浆,这可以通过管道运输到采场管理地面压力和保护环境。改善充填砂浆的流动性,添加剂的使用越来越广泛。然而,一些添加剂可以提高砂浆的含气量。泥浆的空气将成为巩固了硬化浆体的孔回填(CPB)。因此,有必要探索最初的新鲜空气含量的影响浆体的抗压强度。摘要十二烷基硫酸钠(SDS)是用于调节空气含量新鲜泥浆。最初的空气含量测量后,浆制成测试块。然后,缅共的单轴抗压强度(UCS) 28 d年龄测试,体的分布与微观孔隙被扫描电子显微镜(SEM)观察。结果表明,随着初始空气含量新鲜泥浆的增加,心脏的UCS先增加然后减少。最初的空气含量新鲜泥浆之前是6.03%,心脏毛孔分布相对均匀。 However, after exceeding this value, “discontinuous contact” structures, pore groups, and macropores occur in CPB. Through the CPB microscopic force analysis, the mathematical model describing the effect of initial air content on UCS of CPB should be a combination of logarithmic function and quadratic polynomial. This work can provide a supplement to the theory of CPB strength. SN - 1687-8434 UR - https://doi.org/10.1155/2020/8838572 DO - 10.1155/2020/8838572 JF - Advances in Materials Science and Engineering PB - Hindawi KW - ER -