摘要
配制了C100高性能混凝土,制作了标准立方体试块,并选用500 MPa级细晶粒钢筋制作了中心拔出粘结试件.分别对立方体试块和拔出试件进行了200,400,600,800℃的高温试验,完成了高温后的抗压强度试验和拔出粘结试验.基于试验结果,分析了高温作用对高性能混凝土抗压强度和粘结强度的影响,研究了高温后高性能混凝土抗压强度和粘结强度的关系,并通过与普通混凝土高温后粘结性能的对比,分析了高温后高性能混凝土和细晶粒钢筋间粘结性能的特点.
Standard cube compressive specimens and central pull-out test specimens are cast with C100 high-performance concrete（HPC）.In the pull-out test specimen,fine grain steel bars with strength grade of 500MPa are applied.After being exposed to 200 ℃,400 ℃,600 ℃ and 800 ℃,the compressive strength of the cube specimens are tested and the load-slip curves between HPC and fine grain steel bars are recorded.Based on the test results,the bond behavior between HPC and fine grain steel bars is analyzed.Finally,the difference of the post-fire bond behavior between normal concrete and high-performance concrete is discussed.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第10期1296-1301,共6页
Journal of Tongji University:Natural Science
基金
教育部留学回国人员科研启动基金资助项目
国家"八六三"高技术研究发展计划资助项目(2007AA03Z550)
关键词
高温后
高性能混凝土
细晶粒钢筋
粘结
拔出试验
elevated temperature
high-performance concrete（HPC）
fine grain steel bar
bond
pull-out test
