- 摘 要
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(湖南大学土木工程学院, 长沙 410082)
[摘要]从混凝土空心砌块抗压强度试件中取出砌块,通过测量砌块回弹值,采用文献中提出的回弹法检测混凝土空心砌块抗压强度的公式计算砌块抗压强度,并与砌块实际抗压强度进行对比。结果显示,抗压强度实测值与计算值的误差出现超过公式精度要求的现象。根据验证性试验取得的数据对该公式进行改进,改进后的公式精度符合要求。
[关键词]抗压强度; 回弹法; 混凝土空心砌块
中图分类号:TU362 文献标识码:A 文章编号:1002-848X(2015)04-0094-03
Improvement of compressive strength calculation formula for concrete hollow
brick by rebound method
Chen Dachuan, Mao Yanbin, Mao Di
(College of Civil Engineering, Hunan University, Changsha 410082, China)
Abstract:
Taking the compressive strength specimens of concrete hollow bricks for example, by measuring the rebound values of bricks, the compressive strength calculation formula proposed in the literature for concrete hollow brick by rebound method was used to calculate compressive strength of the brick and compare with the actual compressive strength of brick. The results show that the error between measured compressive strength and corresponding calculation value is more than formula accuracy requirements. According to the obtained data from the validation test, the formula was improved, and the accuracy of improved formula meets the requirements.
Keywords:compressive strength; rebound method; concrete hollow brick
*国家自然科学基金项目(50778067)。
作者简介:陈大川,博士,教授,Email:hdcdc67@163.com。
参考文献
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