混凝土早期应力发展与抗裂性能评价

DEVELOPMENT OF STRESS AND EVALUATION OF CRACKING SENSITIVITY OF CONCRETE AT EARLY AGES

混凝土的开裂敏感性主要由早期的应力发展决定,并且受很多因素影响,如温度、模量、热变形系数、自收缩和徐变等。温度-应力试验可以同时考虑这些因素的影响,检测混凝土的应力发展,从而对其开裂敏感性进行评价。

The cracking sensitivity of concrete is determined by the stress development at early ages,and affected by many factors,such as temperature,modulus,thermal deformation coefficient,au togenous shrink-age and creep,etc.The temperature-stress experiment can take there factors into account,and test the stress development of concrete,thus e-valuate the cracking sensitivity.