【摘要】 对水泥、脱硫石膏和粉煤灰进行了不同配比实验,得最佳配比为1∶1∶0;以此配比与不同含量的尾矿固结,通过对70%,65%。60%的尾矿和20%、25%和30%的胶结剂进行对比测定,结果表明,胶结体抗压强度随胶结剂浓度增大而增大。以脱硫石膏、粉煤灰代替部分水泥用于尾矿回填,避免了石膏和粉煤灰带来的环境问题,降低了尾矿胶结填充成本,符合矿山生产可持续发展的循环经济理念。更多还原

【Abstract】 Some experiences on uniaxial compressive strength(UCS) of cement with different proportional rate cementing were gained under nature maintenance condition.Firstly, it concludes that the best proportional is 1∶1∶0 of cement, the FGD gypsum and the fly ash.Then, experience on different concentration of tails with the best cement proportion were gained, the result indicates that the higher of concentration, the better UCS.Finally, contrast to three concentration(20%, 25% and 30%) of the cement proportion, the result shows that the higher is the concentration, the greater UCS is.Tails cementing backfilling with flue desulfurization gypsum, fly ash and cement is accordance with mine sustainable development because it prevents environmental pollution from the gypsum and the fly ash and decreases cost of tails backfilling.更多还原