为了探索工业废料碱渣的利用途径,将其与粉煤灰按一定比例混合,并掺入水玻璃,制成一种注浆液,应用于矿山帷幕灌浆工程.设计9组正交试验和碱渣过筛范围试验,对影响因素进行了分析.结果表明:在选定的因素水平范围内,水玻璃浓度对抗压强度、流动度和终凝时间的影响最显著,碱渣、粉煤灰配比对结石率的影响最显著.碱渣过筛粒径小于2 mm、1 mm时,抗压强度基本相等;小于0.5 mm时,抗压强度提高约51%;小于0.25 mm时,抗压强度明显增大,提高约5倍.
To explore the way of rational utilization of soda residue,soda residue and fly ash were mixed according to certain ratio.And sodium silicate was mixed to prepare a kind of grouting slurry, used in curtain grouting engineering of mine.Nine groups of orthogonal test and the scope of soda residue sieving test were designed to analyses influencing factors.Results show that the concentration of sodium silicate has the most prominent influence on compressive strength, fluidity and final setting time, and the ratio of soda residue and fly ash has the most prominent influence on the stone rate within the scope of selected factor levels.The compressive strength is basically equal when soda residue is sieved less than 2 mm or 1 mm.The compressive strength is enhanced about 51% when soda residue is sieved less than 0.5 mm.The compressive strength is enhanced about five times when soda residue is sieved less then 0.25 mm.
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