【摘要】 以典型固废矿渣微粉、粉煤灰、硅灰为原料制备固废基盾构惰性同步注浆材料，采用六因素五水平正交试验，开展了注浆材料力学性能及抗水分散性的试验研究。结果发现：增大碱激发剂模数，减小其掺量，则浆液抗压强度下降；水胶比、膨水比对浆液抗动水冲刷能力的影响较大；碱激发剂掺量和水胶比是影响浆液水陆强度比的主要因素。根据正交试验极差分析和综合性能平衡，确定了注浆材料的优选配合比：水胶比1.00,胶砂比0.45,膨水比0.35,减水剂掺量1.5%(质量分数),碱激发剂模数1.6,碱激发剂掺量20%(质量分数),此时注浆材料28 d抗压强度为13.02 MPa,水陆强度比为80.83%,3 h动水冲刷质量损失率为5.62%;并开展了稠度、凝结时间、泌水率和结石率等性能试验，测试指标均达到了活性浆液的要求。以上研究为工业固废在盾构注浆技术领域的应用提供了一定的研究基础和实验依据。更多还原

【Abstract】 As typical solid wastes, slag powder, fly ash and silica fume were used as raw materials to fabricate solid waste shield inert synchronous grouting materials. The mechanical property and resistance to water dispersion of grouting materials were investigated by using six-factor and five-level orthogonal test. The results show that the compressive strength of slurry decreases with the increase of alkali activator modulus and the decrease of dosage. The water-binder ratio and bentonite-water ratio exhibit great influence on the hydrodynamic erosion resistance of slurry. The dosage of alkali activator and the water-binder ratio are the main factors affecting the water land strength ratio of slurry. According to the range analysis of orthogonal test and comprehensive performance balance, the optimal mix ratio of grouting material is determined as follows: water-binder ratio 1.00, binder-sand ratio 0.45, bentonite-water ratio 0.35, dosage of water reducer 1.5%(mass fraction), alkali activator modulus 1.6, dosage of alkali activator 20%(mass fraction), and grouting material exhibits compressive strength(28 d) of 13.02 MPa, water land strength ratio of 80.83% and hydrodynamic erosion mass loss rate(3 h) of 5.62%. Furthermore, performance tests such as consistency, setting time, bleeding rate and stone rate were conducted, and the indexes all met the requirements of active slurry. The above research provides a certain research and experimental basis for the application of industrial solid wastes in the field of shield grouting technology.更多还原