Recycled Aggregates (RA) produced from the construction and demolition (C&D) waste can be utilized along with Natural Aggregates (NA) to optimize the concrete’s compressive strength (CS). We evaluated the combined effects of Recycled Aggregates Concrete (RAC) and Styrene–Butadiene Rubber (SBR) Latex on the concrete’s workability and compressive strengths. 72 concrete specimens of 4 groups with respect to the aggregate replacement levels, i.e., 100% NA, 50% NA + 50% RA, 25% NA + 75% RA and 100% RA and 3 groups with respect to SBR Latex dosages i.e., 0%, 1% and 2% were tested. Standard procedure ASTM C-192 was adopted to prepare the concrete test specimens having cement, sand, and aggregates. Variations in compressive strength with varying percentages of RA and SBR Latex at 7, 14 and 28 days were evaluated. The percentages of RA for better strength were found with 50% NA + 50% RA with 2% addition of SBR. Maximum compressive strength was achieved for 50% replacement levels of RA with NA for all SBR Latex addition levels of 1% and 2%, but it was highest at 2% SBR dosage. The overall trend of the compressive strength variation was due to the increasing percentages of recycled aggregates and SBR Latex. 50% or lower replacement levels of RA along with 2% SBR addition is suggested. The SBR Latex induced positive effects on concrete’s compressive strength, as it increased the concrete strength with its increasing percentages. The role of SBR Latex is affirmed in compensating the reductions in CS, due to an increasing percentage of RAs.

从建筑和拆除（C＆D）废物中产生的再生骨料（RA）可以与天然骨料（NA）一起使用，以优化混凝土的抗压强度（CS）。我们评估了再生骨料混凝土（RAC）和苯乙烯-丁二烯橡胶（SBR）乳胶对混凝土的可加工性和抗压强度的综合影响。相对于总置换水平（即100％NA，50％NA + 50％RA，25％NA + 75％RA和100​​％RA），分为4组的72个混凝土试样，关于SBR胶乳剂量的3组，即测试了0％，1％和2％。采用标准程序ASTM C-192来制备具有水泥，沙子和骨料的混凝土试样。评估了在7天，14天和28天时抗压强度随RA和SBR乳胶百分比的变化。发现在50％NA + 50％RA和2％SBR的情况下获得更好强度的RA百分比。对于全部1％和2％的SBR乳胶添加量，用NA代替NA的50％替代水平可实现最大抗压强度，但在2％SBR剂量下最高。抗压强度变化的总体趋势是由于再生骨料和SBR乳胶的百分比增加。建议RA的替代水平为50％或更低，同时添加2％SBR。SBR乳胶对混凝土的抗压强度产生积极影响，因为它随着百分比的增加而增加了混凝土的强度。由于RA百分比的增加，SBR Latex在补偿CS减少方面的作用得到了肯定。对于所有添加量分别为1％和2％的SBR乳胶，用NA替代NA的50％替代水平均达到最大抗压强度，但在2％SBR剂量下最高。抗压强度变化的总体趋势是由于再生骨料和SBR乳胶的百分比增加。建议RA的替代水平为50％或更低，同时添加2％SBR。SBR乳胶对混凝土的抗压强度产生积极影响，因为它随着百分比的增加而增加了混凝土的强度。由于RA百分比的增加，SBR Latex在补偿CS减少方面的作用得到了肯定。对于所有添加量分别为1％和2％的SBR乳胶，用NA替代NA的50％替代水平均达到最大抗压强度，但在2％SBR剂量下最高。抗压强度变化的总体趋势是由于再生骨料和SBR乳胶的百分比增加。建议RA的替代水平为50％或更低，同时添加2％SBR。SBR乳胶对混凝土的抗压强度产生积极影响，因为它随着百分比的增加而增加了混凝土的强度。由于RA百分比的增加，SBR Latex在补偿CS减少方面的作用得到了肯定。抗压强度变化的总体趋势是由于再生骨料和SBR乳胶的百分比增加。建议RA的替代水平为50％或更低，同时添加2％SBR。SBR乳胶对混凝土的抗压强度产生积极影响，因为它随着百分比的增加而增加了混凝土的强度。由于RA百分比的增加，SBR Latex在补偿CS减少方面的作用得到了肯定。抗压强度变化的总体趋势是由于再生骨料和SBR乳胶的百分比增加。建议RA的替代水平为50％或更低，同时添加2％SBR。SBR乳胶对混凝土的抗压强度产生积极影响，因为它随着百分比的增加而增加了混凝土的强度。由于RA百分比的增加，SBR Latex在补偿CS减少方面的作用得到了肯定。