混凝土热力学特性和收缩特性的宏细观研究

Current Situation of Research on Thermodynamic Properties and Shrinkage Characteristics for Concrete in Macro-meso Level

介绍了三种有代表性的混凝土细观力学数值模型,总结了混凝土热力学特性的影响因素及新兴预测技术的研究情况,阐述了温度收缩和自收缩两种变形的发生机理、模型预测及近年研究热点。评述了研究中存在的问题并对未来发展趋势提出了建议。

Beginning with a introduction of three kinds of representative mesolevel numerical models for concrete, then a summary about the influence factors of thermodynamic properties of concrete and newly developing forecast technique is given, and a discussion on the temperature shrinkage and autogenous shrinkage of concrete is represented about their occurrence mechanism and model prediction as well as research hotspot in recent years. Finally, the problems existing in research of this field are reviewed and their future development directions are suggested.