Civil Engineering Department, Engineering Faculty, Firat University, 23119, Elazig, Turkey.
Environ Sci Pollut Res Int. 2023 Sep;30(43):97765-97785. doi: 10.1007/s11356-023-29197-y. Epub 2023 Aug 19.
This study aims to present a multi-perspective evaluation of green concretes produced using supplementary cementitious material and recycled concrete aggregates and to balance the reduction in compressive strength values caused by using recycled concrete aggregates with silica fume. For these purposes, statistical analyses were performed on the response surface method using the data of 9 reference and 27 green concrete series mixtures, and mathematical models were developed to predict the compressive strength with high accuracy. Then, energy consumption, global warming potential, and waste generation were taken into account from the environmental impact categories, and the environmental impact scores obtained were compared in detail to examine the impact of the use of silica fume and recycled concrete aggregates on sustainable development. Significant reductions in energy consumption and global warming potential values with the use of silica fume and waste generation values with the use of recycled concrete aggregates were achieved, and it was seen that supplementary cementitious material and recycled concrete aggregates are of great importance in terms of sustainable development. It was seen that these waste materials could be utilized, especially in regions with high earthquake risk, and that these waste materials are of great importance.
本研究旨在从多个角度评价使用辅助胶凝材料和再生混凝土骨料生产的绿色混凝土，并平衡使用再生混凝土骨料对抗压强度值的降低，同时使用硅灰进行补偿。为此，使用响应面法对 9 个参考系列和 27 个绿色混凝土系列混合物的数据进行了统计分析，并建立了数学模型，以高精度预测抗压强度。然后，从环境影响类别考虑能源消耗、全球变暖潜势和废物产生，详细比较获得的环境影响分数，以检验硅灰和再生混凝土骨料的使用对可持续发展的影响。使用硅灰可显著降低能源消耗和全球变暖潜势值，使用再生混凝土骨料可降低废物产生值，这表明辅助胶凝材料和再生混凝土骨料对可持续发展具有重要意义。研究结果表明，特别是在高地震风险地区，这些废料可以得到有效利用，因此这些废料的应用具有重要意义。
