硅酸盐通报2018，Vol.37Issue(6)：1847-1851,5.
高温作用后高性能混凝土内部钢筋的锈蚀电位检测
Corrosion Potential Detection of Internal Reinforcing Bar in High Performance Concrete after High Temperature
摘要
Abstract
In order to study the damage of steel bars in high performance concrete after high temperature effect, the Half-cell potential method was used to detect the corrosion potential of the internal reinforcement of C60 high performance concrete,which mixed with and without polypropylene fiber and after a different temperature effect.The results show that steel corrosion potential value in the plain concrete and polypropylene fiber reinforced concrete generally have little difference with the increase of temperature.The change rule of absolute value is as follows: In the range of 20-500 ℃, the absolute value of the corrosion potential increases with temperature; In the range of 500-700 ℃, the absolute value of the corrosion potential is almost unchanged with the temperature rise; The reinforcement diameter and the different cooling method have little effect on the corrosion potential value of the steel inside the concrete.关键词
高温/聚丙烯高性能混凝土/钢筋损伤/锈蚀电位值Key words
high temperature/polypropylene high performance concrete/reinforcement damage/rust potential分类
建筑与水利引用本文复制引用
张一帆,杜红秀..高温作用后高性能混凝土内部钢筋的锈蚀电位检测[J].硅酸盐通报,2018,37(6):1847-1851,5.基金项目
国家自然科学基金(51278325) （51278325）
