再生混凝土的骨料主要是经过破碎、分级并清理后的废弃混凝土块,按照一定比例和级配混合,替代部分天然砂石料,再加入水泥、水等配合成新混凝土。本次研究采用自由水灰比方法设计配合比,探讨不同水灰比对混凝土强度的影响,最终得出结论,为再生混凝土工程应用及强度推算提供可靠指标。 Recycled concrete aggregate is mainly crushed, graded and cleaned concrete block, according to a certain proportion and grading mix, replace part of the natural aggregate, then add cement, water, etc. into a new concrete. In this study, the design of free water-cement ratio was used to study the effect of different water-cement ratio on the concrete strength. Finally, the conclusion was reached to provide reliable indicators for the application and strength calculation of recycled concrete.