摘要
为推进落实“双碳”国家发展战略,提高大宗工业固体废弃物的综合利用率,实现对矿渣、粉煤灰的协同使用,通过无侧限抗压强度试验,研究碱激发剂掺量、水胶比以及矿渣与粉煤灰之比对矿渣-粉煤灰基地聚物力学性能的影响。试验结果表明:当碱激发剂掺量为30%、水胶比为0.40、矿渣∶粉煤灰为80∶20为矿渣-粉煤灰基地聚物力学性能最佳,其28 d无侧限抗压强度可达到78.4 MPa。该研究结果可为矿渣-粉煤灰基地聚物的进一步研究提供借鉴和参考。
In order to promote the implementation of national development strategy of"carbon peaking and carbon neutrality",the comprehensive utilization rate of bulk industrial solid waste is improved to realize the coordinated use of slag and fly ash.The effects of alkali activator content,water-binder ratio and slag-fly ash ratio on the mechanical properties of slag-fly ash based geopolymer are studied by the unconfined compressive strength test.The test results show that the content of alkali activator is 30%,the water-binder ratio is 0.40,and slag-fly ash ratio is 80∶20 are the best mechanical properties of slag-fly ash based geopolymer,and the 28 d unconfined compressive strength of the geopolymer reaches 78.4 MPa.The research results can provide reference for further research on slag-fly ash based geopolymers.
作者
李叙锋
章本本
王倩
钟威麟
李新宇
Li Xufeng;Zhang Benben;Wang Qian;Zhong Weilin;Li Xinyu(Yueyang City Roads and Bridge Construction Corporation,Yueyang 414000,China;College of Civil Engineeringand Mechanics,Xiangtan University,Xiangtan 41l105,China;HunanXihu Construction Group Co.,Ltd.,Changsha 410000,China)
出处
《市政技术》
2022年第10期1-5,12,共6页
Journal of Municipal Technology
基金
湖南省自然科学基金(2021JJ50039)
湖南省住房和城乡建设厅建设科技计划项目(KY202003、KY202116)
2021年湖南省研究生科研创新项目(企业联合项目)(No.21B0123)。
关键词
地聚物
矿渣-粉煤灰
无侧限抗压强度
碱激发剂
geopolymer
slag-fly ash
unconfined compressive strength
alkali activator
