【摘要】 研究了新拌负温空白砼及其负温防冻剂混凝土在硬化过程中受冻后弹性模量变化规律 ,确定了负温砼冻结损伤力学方程及其损伤因子 ,并给出工程结构中允许许应的值 ,为负温砼工程设计及其寻找冻害基因的演化过程提供研究手段更多还原

【Abstract】 It was investigated the variance rule of elastic model after control plain concrete and antifreezing admixture concrete at minus-temperature frost. The freezing damage mechanics equation and its damage fractor ω of concrete at minus-temperature are determined.And then some value of allow damage factor ω z in engineering structure are shown.This work is foundation of research for the design of engineering structure and damage mechanics and reduce calamity technology of concrete at minus-temperature.更多还原