本文通过分析等质量/体积替换、有效水胶比法(EW/C法)以及等效砂浆体积法(EMC法)三种再生粗骨料混凝土配合比设计方法,指出有效水胶比及浆体含量是再生骨料混凝土配合比设计的关键,在此基础上提出了改进等效砂浆体积法(PEMC法),并分析了普通骨料保留率(β值)及富余砂浆系数(γ值)对配合比的影响。结果表明:在不同再生骨料取代率下,通过控制γ值能不同程度缓和EMC法设计时水胶比偏低及有效浆体体积偏少的问题,即PEMC法更适合用于大掺量再生骨料混凝土的配合比设计。 In this paper, the design methods of three kinds of recycled coarse aggregate concrete with equal mass / volume substitution, effective water-cement ratio method (EW / C method) and equivalent mortar volume method (EMC method) Content is the key to the design of recycled aggregate concrete mix ratio. On this basis, the improved equivalent mortar volume method (PEMC method) is proposed, and the ratio of ordinary aggregate retention rate (β value) and residual mortar coefficient (γ value) With the impact of the ratio. The results show that under the different replacement rate of recycled aggregates, the control of γ value can ease the problem of the low water-cement ratio and the small volume of effective slurry when designed by EMC method, that is, the PEMC method is more suitable for high-volume regeneration Mix Design of Aggregate Concrete.