摘要
在分析对比国内外混凝土开裂性能测试方法的基础上,研制了哑铃型混凝土开裂性能测试仪.该测试仪采用应力发生器诱导混凝土试件快速产生裂缝,能快捷准确地评价混凝土材料开裂性能.与现有的约束条件下混凝土开裂性能测试方法(板式约束法、圆环约束法等)对比后发现:哑铃型混凝土开裂性能测试方法具有敏感性强、准确性高、测试周期短、工程应用简便等特点.
A dumbbell test device for evaluating the anti-cracking performance of concrete material under constraint conditions was developed based on comparison of domestic and overseas anti-crack test methods of concrete. This dumbbell test technology can help quickly and accurately evaluate the anti-cracking performance of concrete material with the device of stress riser to quickly induce cricks. Compared with existing two test methods for testing anti-cracking performance of concrete （ring method and slab test method） the dumbbell method has several advantages, such as good sensitivity, high accuracy, short testing cycle and convenient operability.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2011年第5期694-697,共4页
Journal of Building Materials
基金
中国民用航空局科技项目(MHRD2009206)
关键词
开裂
应力诱导
哑铃法
平板法
圆环法
crack
stress riser
dumbbell method
slab method
ring method
