北京交通大学学报2011，Vol.35Issue(1)：20-23,27,5.
混凝土四重球弹性模量随龄期发展预测模型
Four-phase sphere model for elastic modulus of concrete with age
摘要
Abstract
Compressive strength and elastic modulus of concrete can increase with age. However, compared with compressive strength, little research on increasing of elastic modulus with age is found. In this paper, a four phase sphere model was built up based on the two phase sphere model and the three phase model by considering interfacial transition zone (ITZ). The model can describe the effect of ITZ on the development of elastics modulus of concrete. The results of parameter analysis show the following parameters have an important effect on the development of elastics modulus: a. aggregate volume fraction, b. aggregate size, c. the effect of ITZ.关键词
混凝土/界面过渡区/抗压强度/弹性模量/预测模型Key words
concrete/ interfacial transition zone/ compressive strength/ elastic modulus/ predicting model分类
交通工程引用本文复制引用
刘明辉,王元丰..混凝土四重球弹性模量随龄期发展预测模型[J].北京交通大学学报,2011,35(1):20-23,27,5.基金项目
国家"十一五"科技支撑计划项目资助(2006BAJ06B04) （2006BAJ06B04）
交通部西部交通建设科技项目资助(200631822302-08) （200631822302-08）
