【摘要】 利用由碱激发偏高岭土得到的地聚合物与轻集料陶砂制备出的地聚合物基轻质混凝土具有很好的力学性能和耐高温性能;试验测试了其28d抗压强度和经950℃高温煅烧后的强度损失率,并利用SEM分析了地聚合物-陶砂界面结构在高温前后的变化情况。研究结果表明:当胶砂比合适时,地聚合物基轻质耐高温混凝土具有较高的强度、良好的耐高温性能和密度小等优点,可用于具有火灾隐患或长期处于高温工作环境的建筑工程中。更多还原

【Abstract】 The mechanical property and resistance to elevated temperatures of geopolymer based lightweight concrete prepared with alkali activated MK and lightweight aggregate are very well.The compressive strength of 28d and loss rate of strength at 950℃ are tested;the interface structure between the geopolymer and lightweight aggregate is obserbved by SEM before and after heat treatment.The results show that when C/B is suitable,geopolymer based lightweight concrete has many merits such as high strength、high resistance to elevated temperatures and light weight,so it can be used for the building engineering with fire incipient fault or under high-temperature work environment.更多还原