摘要
本文对 1 0 4个混凝土试块在常温～ 1 0 0 0℃范围内温度作用后 ,在自然冷却和喷水冷却条件下进行了强度试验和理论分析工作 ,包括混凝土抗压强度和抗拉强度。探讨了高温作用后混凝土强度的变化规律 ,着重分析它与作用温度的相互关系 ,并建立简明的数学表达式 ,同时分析了不同的冷却方式对于混凝土强度的影响。
In order to investigate the effect of temperature (from normal atmospheric temperature to 1000℃)caused by fire on the strength of concrete,a total of 104 specimens have been performed under different temperature conditions.The content consists of the ultimate tension and tensile of concrete subjected to fire and then cooled at air or at water The regularity and mechanism of change in concrete on strength after high temperature are analyzed;Emphasis is laid on the relationship between temperature and strength.The relevant formulas are proposed,and the effect of different methods of cooling to the strength is analyzed in this paper. 〔
出处
《混凝土》
CAS
CSCD
北大核心
2000年第2期44-45,53,共3页
Concrete
