| 超声回弹综合法检测再生混凝土抗压强度试验研究 |
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| 引用本文： | 兰雯雯,李佰寿,张平.超声回弹综合法检测再生混凝土抗压强度试验研究[J].施工技术,2011,40(22). |
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| 作者姓名： | 兰雯雯 李佰寿 张平 |
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| 作者单位： | 廷边大学工学院,吉林延吉,133002 |
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| 摘 要： | 针对配制再生粗骨料取代率为30%和50%,同时分别掺入5%,10%,15%粉煤灰的C30再生混凝土试块,采用超声回弹综合法检测抗压强度,进行试验研究,推导出适用的测强公式。试验结果表明:其测强公式与粉煤灰再生混凝土抗压强度实测值具有较好的相关性;对同种配合比实体构件进行检测,利用推导的多项式回归方程计算结构实体构件强度,回归结果与实际符合较好。
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| 关 键 词： | 混凝土 再生混凝土 粉煤灰 超声回弹综合法 抗压强度 测强公式 |
Research on Ultrasonic-rebound Combined Method for Detecting Compressive Strength of Recycled Concrete |
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| Lan Wenwen,Li Baishou,Zhang Ping.Research on Ultrasonic-rebound Combined Method for Detecting Compressive Strength of Recycled Concrete[J].Construction Technology,2011,40(22). |
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| Authors: | Lan Wenwen Li Baishou Zhang Ping |
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| Affiliation: | Lan Wenwen,Li Baishou,Zhang Ping(College of Engineering,Yanbian University,Yanji,Jilin 133002,China) |
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| Abstract: | The compressive strength of recycled aggregate concrete with different recycled coarse aggregate replacement ratios and different fly ash replacement ratios is detected by ultrasonic-rebound combined method,and corresponding strength formula is obtained.The test results show that strength formula and compressive strength of recycled concrete with fly ash agree well.The components with the same proportion are tested.The strength of components is calculated based on polynomial regression equation.The regressi... |
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| Keywords: | concrete recycled concrete fly ash ultrasonic-rebound combined method compressive strength strength formula |
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