| 普通回弹仪在高强混凝土强度检测中的应用 |
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| 引用本文： | 朱浮声,黄志烨,许研,赵嵩堪.普通回弹仪在高强混凝土强度检测中的应用[J].东北大学学报(自然科学版),2002,23(5):474-476. |
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| 作者姓名： | 朱浮声 黄志烨 许研 赵嵩堪 |
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| 作者单位： | 东北大学资源与土木工程学院;东北大学资源与土木工程学院;东北大学资源与土木工程学院;东北大学后勤管理处辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004 |
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| 基金项目： | 辽宁省科学技术基金资助项目 (962 160 ) |
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| 摘 要： | 在高强混凝土强度检测中,重型回弹仪检测结果反映的不是混凝土试件表面硬度与强度关系,而是其内部结构与强度的关系;增大冲击能量却使回弹值降低·普通回弹仪检测结果反映了混凝土试件硬度与强度间相关关系,试验测强曲线具有较好统计特征并与实测值吻合,表明了普通回弹仪在高强混凝土强度检测中的适用性
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| 关 键 词： | 高强混凝土 回弹法 重型回弹仪 普通回弹仪 回归统计 测强曲线 |
| 文章编号： | 1005-3026(2002)05-0474-03 |
| 修稿时间： | 2001年8月29日 |
Application of Normal Rebound Instrument in Determination of Strength of High Strength Concrete |
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| ZHU Fu sheng ,HUANG Zhi ye ,XU Yan ,ZHAO Song Kan.Application of Normal Rebound Instrument in Determination of Strength of High Strength Concrete[J].Journal of Northeastern University(Natural Science),2002,23(5):474-476. |
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| Authors: | ZHU Fu sheng HUANG Zhi ye XU Yan ZHAO Song Kan |
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| Abstract: | The applicability of the normal and heavy rebound instruments for measuring the strength of high strength concrete were discussed. The difference of the ratio of energy discharge of concrete cubes, especially, obtained from the two types of rebound instruments were thoroughly considered. The rebound values decrease as the pulse energy increases in the tests. The rebound values measured from heavy instruments do not represent the inherent relationship between surface hardness and strength of specimens. The strength rebound regression equation with a lot higher correlation coefficient and precision of high strength concrete in different models shows that the applicability of a normal rebound instrument for measuring the strength of high strength concrete is fully confirmed. |
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| Keywords: | high strength concrete rebound method heavy rebound instrument light rebound instrument regression analysis strength-rebound values regression equation |
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