• 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
若干因素对水泥砂浆流变性能的影响
Influence of Several Factors on Rheological Properties of Cement Mortar
投稿时间:2018-07-08  修订日期:2018-08-03
DOI:103969/j.issn.1007 9629201904002
中文关键词:  砂浆  流变性  矿物掺和料  触变性  化学外加剂
英文关键词:mortar  rheological property  mineral admixture  thixotropy  chemical admixture
基金项目:
           
作者单位
杨钱荣
YANG Qianrong
同济大学材料科学与工程学院,上海201804
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
赵宗志
ZHAO Zongzhi
同济大学材料科学与工程学院,上海201804
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
张庆钊
ZHANG Qingzhao
同济大学材料科学与工程学院,上海201804
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
李成伟
LI Chengwei
同济大学材料科学与工程学院,上海201804
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
摘要点击次数: 84
全文下载次数: 0
中文摘要:
      采用旋转黏度计研究了不同因素对水泥砂浆流变性能的影响,分析了水泥砂浆的塑性黏度、屈服应力及触变性与流动度之间的关系.结果表明:当流动度为134~300mm时,水泥砂浆的流变特征符合宾汉姆流体模型;水灰比、骨胶比、矿物掺和料以及化学外加剂等因素虽对水泥砂浆的塑性黏度、屈服应力及触变性有不同程度的影响,但并不改变水泥砂浆的流体模型;水泥砂浆的塑性黏度、屈服应力与流动度之间的相关性较弱,而水泥砂浆的触变性与流动度之间存在相关性.
英文摘要:
      Influence of different factors on rheological properties of cement mortar was investigated using rotational viscometer, and the relationships between the plastic viscosity, yield stress, thixotropy and fluidity of cement mortar were studied. The results show that when the fluidity is 134300mm, the rheological characteristic of cement mortar conforms to Bingham model. Although the factors of water cement ratio, aggregate cement ratio, mineral admixtures, and chemical admixtures have different effects on plastic viscosity, yield stress, and thixotropy of cement mortar, they do not change the rheological model of cement mortar. The correlation between plastic viscosity, yield stress and fluidity of cement mortar is weak,but there is a correlation between thixotropy and fluidity of cement mortar.
查看全文  查看/发表评论  下载PDF阅读器
关闭