RESEARCH ON THE INFLUENCE OF PORES AND MICRO-CRACKS ON THE MACRO-MECHANICAL PROPERTIES OF CONCRETE

摘要：

Concrete is typical porous medium permeated by an interconnected network of pores and micro-cracks.In the micro level,concrete is considered as a threephase composite with aggregates,pores and mortar matrix.In the paper,the random multi-scale mechanical analysis model is adopted to study the macromechanical properties of concrete with pores.The results indicate that the existence of pores and micro cracks has great influence on macro elastic modulus,effective strength,residual strength and other mechanical properties of concrete,which should not be neglected when investigating the mechanical properties and damage fracture of concrete.

关键词： concrete pores micro cracks mechanical properties

作者: L.Jin X.L.Du

作者单位: The Key Laboratory of Urban Security and Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100124,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 909-912

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）