双掺混凝土高温作用后性能试验研究  

Research on the performance of concrete combining fly ash and water-reducing admixture after heating

作　　者：张科强[1] 陈丽红[1] 林友军[1] 王亚赫[1] 

机构地区：[1]陕西理工学院土木工程与建筑系,陕西汉中723000

出　　处：《四川建筑科学研究》2007年第5期140-142,共3页Sichuan Building Science

摘　　要：试验研究了在3种不同配合比下掺入减水剂和粉煤灰的C40碎石混凝土,经高温作用后,混凝土残余强度的变化规律,分析了减水剂、粉煤灰的掺入对混凝土高温后残余强度影响的规律,探讨了双掺混凝土随温度升高性能劣化的机理以及对抗压强度的影响。Based on the experiment of the unbound aggregate different design concrete combining fly ash and water-reducing admixture, the change of compressive strength of the concrete after high heating is analyzed and the relation of residual compressive strength of the unbound aggregate concrete combining fly ash and water-reducing admixture is studied. In the end, the performance deterioration and influence of the compressive strength with the increasing of temperature has been discussed.

关 键 词：温度 双掺 混凝土 强度变化 

分 类 号：TU528.01[建筑科学—建筑技术科学]