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中文摘要：
将收集的废弃混凝土破碎细集料筛除粒径大于0.75mm的细集料,基于正交试验,研究不同再生细集料取代率、硅粉取代率和减水剂掺量对砂浆工作性能、抗压强度和抗剪强度的影响,得出各因素的主次顺序和各因素的影响权重,通过层次分析法得出掺硅粉再生砂浆的最优配合比。以此以期为再生砂替代砂浆中天然砂提供理论依据。
英文摘要：
The collected waste concrete crushing in addition to 0. 75mm diameter was greater than the fine aggregate, based on orthogonal experiment, effects of different recycled fine aggregate replacement ratio, silica fume substitution rate and reducing agent dosage on the performanee of mortar, compressive strength and shear strength of the influence that the influence weight of secondary order of each factor and each factor, by level analysis of the silica fume recycled mortar optimized proportion. So in order for recycled sand instead of natural sand mortar and provide a theoretical basis for fine aggregate screens.
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