摘要
为处理桥梁桩基废弃泥浆,采用工业固废协同泥浆制作地质聚合物胶凝材料,改良其工程性能。基于正交试验设计原理,参考水泥胶砂试验方法研究了泥浆掺量、水固比、养护龄期对地聚物胶凝材料强度的影响。试验结果表明:掺加泥浆的地聚物胶凝材料28 d抗压强度可达21.65 MPa,抗折强度可达4.11 MPa。在泥浆掺量为30%~50%、水固比为0.35~0.55及养护龄期28 d范围内,地聚物胶凝材料的抗压、抗折强度与泥浆掺量、水固比呈负相关,与养护龄期呈正相关。
In order to treat abandoned mud from bridge pile foundations,industrial solid waste synergistic mud was used to produce geopolymer cementitious materials and improve their engineering performance.Based on the principle of orthogonal experimental design and referring to the cement sand test method,the influence of mud content,water solid ratio,and curing age on the strength of geopolymer cementitious materials was studied.The experimental results show that the 28 day compressive strength and flexural strength of the geopolymer cementitious material mixed with mud can reach 21.65 MPa and 4.11 MPa,respectively.Within the range of mud content of 30%~50%,water solid ratio of 0.35~0.55,and curing age of 28 days,the compressive and flexural strength of geopolymer cementitious materials are negatively correlated with mud content and water solid ratio,and positively correlated with curing age.
作者
游彪
邬俊峰
董金中
胡国祥
YOU Biao;WU Jun-feng;DONG Jin-zhong;HU Guo-xiang(School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan,430074,China;Hubei Jiaotou Jingchu Construction Management Co.,Ltd.,Jingzhou,Hubei,434100,China)
出处
《建材技术与应用》
2024年第4期58-61,共4页
Research and Application of Building Materials
基金
湖北省交通运输厅科技项目(鄂交发[2023]121号,2023-121-2-25)。
关键词
桥梁桩基
废弃泥浆
地聚物胶凝材料
粉煤灰
矿渣粉
脱硫石膏
bridge pile foundation
waste mud
geopolymer cementitious materials
fly ash
slag powder
desulfurized gypsum