硅酸盐通报2017，Vol.36Issue(5)：1760-1765,6.
再生骨料混凝土高温损伤研究
High-temperature Damage of Recycled Aggregate Concrete
摘要
Abstract
The effect of RA(Recycled Aggregate) replacement ratio on the properties of RAC(Recycled Aggregate Concrete) was studied, including skin morphology, compressive strength and mass pore structure.The results show that there is a thick distribution of cracks or even aggregate spalling, when it is exposed to high-temperature, due to the texture of RA worse than NA, which stems from construction waste.It is observed that both the residual compressive strength and mass of the concrete are significantly remained, after exposure to 400 ℃ within the replacement ratio of 40% RA.However, the elevated temperature exceeds 600 ℃ is helpful in increasing predominately porosity and reducing the relative content of the micropore.关键词
再生混凝土/高温损伤/孔结构Key words
RAC/high-temperature damage/pore structure分类
建筑与水利引用本文复制引用
张旺春,王建平..再生骨料混凝土高温损伤研究[J].硅酸盐通报,2017,36(5):1760-1765,6.基金项目
潍坊市软科学研究计划项目(2016RKX049) （2016RKX049）
