水泥净浆热变形机理分析  

Mechanism analysis of thermal deformation about cement paste

作　　者：黄杰[1,2] 徐轶安 帅映勇[1] 

机构地区：[1]泰州职业技术学院建筑工程学院,江苏泰州225300 [2]江苏省江建集团有限公司,江苏扬州225200

出　　处：《中国建材科技》2016年第4期34-36,共3页China Building Materials Science & Technology

基　　金：2015年度扬州市"绿扬金凤计划"资助项目;江苏省高职院校青年教师企业实践培训资助项目;泰州职业技术学院博研基金项目(TZYBS-12-4);泰州市社会发展计划(指导性)项目

摘　　要：水泥基材料热变形是混凝土结构早期开裂的主要因素之一,而对其热变形的机理研究较少。文中分析了含水率和龄期对水泥净浆热变形的影响机理,阐述了其滞后变形的发生机理。研究发现,水泥净浆热变形发生机理有不同的解释模型,缺乏与机理研究相适应的试验数据是主要原因之一。文章对水泥基材料热变形机理研究提出了建议,可为水泥基材料细观机理研究提供参考。Thermal deformation of cement-based materials is one of the major factorsof concrete structure cracking at early stage and the related research is relatively less on mechanism of the thermal deformation.Themechanism of influenceof the moisture content and age of the concrete on the thermal deformation of cement-paste is analyzed in this study, in which the occurrence mechanism of hysteresis deformation is elaboratedwith detail.It is found that several interpretative models on which to explain the occurrence mechanism of thermal deformation of cement-paste are still inconclusive and one of the main reasons for thissituationis due to the lack of the match of experimental data corresponding to the mechanism research.The mechanism of thermal deformation of cement-paste is then suggested in this paper, which offers a good reference for the study on the mesoscopic-mechanism of the cement-based materials.

关 键 词：水泥净浆 热变形 热膨胀系数 机理分析 水泥基材料 

分 类 号：TU525[建筑科学—建筑技术科学]