摘要
本文基于8组试件的轴心受压徐变试验,研究了加荷龄期及持荷应力对聚乙烯醇纤维增强水泥基复合材料(PVA-FRCC)徐变性能的影响.试验结果表明:PVA-FRCC材料的徐变随加荷龄期的增长而降低;在最初持荷的60d之内,不同加荷龄期的试件徐变速率相差较大,60d后各试件的相对徐变趋于稳定.在28d施加荷载的PVA-FRCC试件,徐变应变随持荷应力的提高而增大,而徐变系数和徐变度均随持荷应力的提高而降低.
Based on the creep test of 8 groups of PVA-FRCC specimens under axial compression,the influence of loading age and loading stress on the creep performance of PVA-FRCC was studied in this paper.The test results show that the creep of PVA-FRCC decreases with the delay of the loading age.In the first 60 days of loading,the creep rate of specimens under different loading ages has a great difference;and the relative creep of specimens tends to be stable after 60 days.The creep strain of PVA-FRCC specimens increased with the increase of loading stress,while the creep coefficient and creep degree decreased with the increase of loading stress.
作者
王玉清
孟苏牙拉吐
刘曙光
孙亮
刘潇
WANG Yu-qing;MENG Suyalatu;LIU Shu-guang;SUN Liang;LIU Xiao(School of Civil Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;School of Mining,Inner Mongolia University of Technology,Hohhot 010051,China;Xingan Power Distribution Company of State Grid Eastern Inner Mongolia Electric Power Co.Ltd.,Ulanhot 137400,China)
出处
《内蒙古工业大学学报（自然科学版）》
2020年第3期206-212,共7页
Journal of Inner Mongolia University of Technology：Natural Science Edition
基金
国家自然科学基金项目(51768051)
内蒙古自治区科技创新引导项目(KCBJ2018016)
内蒙古自然科学基金项目(2018LH05040)。
