摘要
为研究碱激发剂与液固比对地聚物工作性能和力学性能的影响,以粉煤灰为原料,进行正交试验。试验结果表明:粉煤灰基地聚物的工作性能随着地聚物液固比增大而增加,但强度却随着液固比增大而减小。激发剂浓度增大,不利于粉煤灰基地聚物良好的工作性能,但有利于其强度增大。激发剂模数增大,粉煤灰基地聚物的力学性能和工作性能呈下降趋势。本研究中粉煤灰基地聚物最大的强度能达到61.35 MPa。
To study the effect of activator properties and liquid-solid ratio on the working performance and mechanical properties of fly ash-based geopolymer,orthogonal test was performed.Test results show the working performance of fly ash-based geopolymer increases with the increase of liquid-solid ratio,however the strength decreases.The increase of activator concentration is not in favor of the performance of fly ash-based geopolymer but increases its strength.The mechanical properties and working properties of fly ash based polymers decrease with the increase of activator modulus.The strength of the fly ash-based geopolymer prepared in this research can be up to 61.35 MPa.
作者
刘进琪
王世玉
彭晖
钟卿瑜
林福宽
LIU Jin-qi;WANG Shi-yu;PENG Hui;ZHONG Qin-yu;LIN Fu-kuan(School of Civil Engineering,Changsha University of Science&Technology,Changsha 410004,China;National-Local Joint Engineering Laboratory of Technology for Long-term Performance Enhancement of Bridges in Southern District,Changsha University of Science&Technology,Changsha 410114,China)
出处
《交通科学与工程》
2020年第3期8-13,共6页
Journal of Transport Science and Engineering
关键词
地聚物
粉煤灰
激发剂性质
液固比
正交试验
geopolymer
fly ash
activator properties
liquid-solid ratio
orthogonal test