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约束条件下混凝土开裂性能哑铃型测试方法研究
引用本文:刘岩,王培铭,郭延辉.约束条件下混凝土开裂性能哑铃型测试方法研究[J].建筑材料学报,2011,14(5).
作者姓名:刘岩  王培铭  郭延辉
作者单位:1. 中国民航机场建设集团公司,北京,100101
2. 同济大学先进土木工程材料教育部重点实验室,上海,200092
3. 中国建筑科学研究院,北京,100013
基金项目:中国民用航空局科技项目(MHRD2009206)
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.

关 键 词:开裂  应力诱导  哑铃法  平板法  圆环法  

Study on New Test Method for Concrete Cracking Resistance under Constraint Condition
LIU Yan,WANG Pei-ming,GUO Yan-hui.Study on New Test Method for Concrete Cracking Resistance under Constraint Condition[J].Journal of Building Materials,2011,14(5).
Authors:LIU Yan  WANG Pei-ming  GUO Yan-hui
Affiliation:LIU Yan~1,WANG Pei-ming~2,GUO Yan-hui~3 (1.China Airport Construction Group Corporation of CAAC,Beijing 100101,China,2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,Shanghai 200092,3.China Academy of Building Research,Beijing 100013,China)
Abstract: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 metho...
Keywords:crack  stress riser  dumbbell method  slab method  ring method  
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