• 首页
  • 期刊介绍
  • 编委会
  • 征稿启事
  • 期刊订阅
  • 相关下载
  • 联系我们
PVA ECC徐变性能试验研究
Experimental Study on Creep Behaviors of PVA ECC
投稿时间:2019-03-03  修订日期:2019-04-12
DOI:103969/j.issn.1007 9629202004013
中文关键词:  聚乙烯醇纤维水泥基复合材料  徐变  纤维掺量  加荷龄期  估算模型
英文关键词:engineered cementitious composite with polyvinyl alcohol fiber(PVA ECC)  creep  fiber content  loading age  estimation model
基金项目:国家自然科学基金资助项目(51768051);内蒙古自治区科技创新引导项目(KCBJ2018016);内蒙古自治区自然科学基金资助项目(2018LH05040)
           
作者单位
王玉清
WANG Yuqing
内蒙古工业大学土木工程学院,内蒙古呼和浩特010051
School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
刘潇
LIU Xiao
内蒙古工业大学土木工程学院,内蒙古呼和浩特010051
School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
刘曙光
LIU Shuguang
内蒙古工业大学矿业学院,内蒙古呼和浩特010051
School of Mining and Technology, Inner Mongolia University of Technology, Hohhot 010051, China
孙亮
SUN Liang
国网内蒙古东部电力有限公司兴安供电公司,内蒙古乌兰浩特137400
Xingan Power Supply Company, Eastern Inner Mongolia Electric Power Co., Ltd., State Grid, Ulanhot 137400, China
摘要点击次数: 137
全文下载次数: 0
中文摘要:
      基于7组聚乙烯醇纤维增强水泥基复合材料(PVAECC)试件的轴心受压徐变试验,研究了不同纤维掺量和加荷龄期条件下PVAECC的徐变性能.结果表明:在试验掺量范围内,纤维掺量越大,PVAECC的徐变能力越大;PVAECC的徐变随加荷龄期的延长而降低,晚龄期加载试件的徐变小于早龄期加载试件.结合已有混凝土徐变计算模型和本文试验结果,提出了估算PVAECC徐变的2种模型,其计算值与试验值吻合较好.
英文摘要:
      Based on the creep tests of seven groups of engineered cementitious composite with polyvinyl alcohol fiber(PVA ECC) under axial compression, the creep behaviors of PVA ECC with different fiber content and loading age were studied. The results show that the higher of the fiber volume rate is, the greater of the creep value is. The creep value of PVA ECC decreases with the increase of loading age, and the creep value of specimens loaded in the late age is smaller than that loaded in the early age. Based on the existing concrete creep estimation models and the test results, two models for creep estimation of PVA ECC are proposed. Compared with the test data, the values calculated by the two model formulas are in good agreement with the test values.
查看全文  查看/发表评论  下载PDF阅读器
关闭