马晓杰1,任 锐2,赵文婧1,杨 婷1,韩智超1,张雅鑫1
马晓杰,任锐,赵文婧,等.基于一次回归正交试验的再生混凝土配合比优化研究[J].混凝土与水泥制品,2024(6):111-114.
MA X J,REN R,ZHAO W J,et al.Research on mix proportion optimization of recycled concrete based on linear regression orthogonal experiment[J].China Concrete and Cement Products,2024(6):111-114.
基于一次回归正交试验的再生混凝土配合比优化研究
马晓杰1,任 锐2,赵文婧1,杨 婷1,韩智超1,张雅鑫1
马晓杰,任锐,赵文婧,等.基于一次回归正交试验的再生混凝土配合比优化研究[J].混凝土与水泥制品,2024(6):111-114.
MA X J,REN R,ZHAO W J,et al.Research on mix proportion optimization of recycled concrete based on linear regression orthogonal experiment[J].China Concrete and Cement Products,2024(6):111-114.
摘 要:采用一次回归正交试验方法,研究了再生粗骨料、再生细骨料和粉煤灰的掺量对再生混凝土28 d抗压强度的影响,并建立了回归方程。结果表明:各因素对再生混凝土28 d抗压强度的影响程度大小为再生细骨料掺量>再生粗骨料掺量>粉煤灰掺量,且随着三者掺量的增加,再生混凝土的28 d抗压强度均呈降低趋势;建立的回归方程与实际情况的拟合效果较好,可为再生混凝土的配合比优化设计提供指导。
Abstract: The effects of the contents of recycled coarse aggregate, recycled fine aggregate and fly ash on the 28 d compressive strength of recycled concrete were investigated by using a linear regression orthogonal experiment, and the regression equation was established. The results show that the degree of influence of various factors on the 28 d compressive strength of recycled concrete is recycled fine aggregate content > recycled coarse aggregate content > fly ash content, and with the increase of the three content, the 28 d compressive strength of recycled concrete shows a decreasing trend. The regression equation established has a good fitting effect with the actual situation, which can provide reference for the optimization design of recycled concrete mix proportion.
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