The Rebound Curve Research of Inspection the High Strength Concrete

Hai Bin Chen; Hui Dong Lu; Nan Ge; Xiao Jun Tong

doi:10.4028/www.scientific.net/AMR.446-449.3239

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449The Rebound Curve Research of Inspection the High...

The Rebound Curve Research of Inspection the High Strength Concrete

Abstract:

Since the nineteen nineties, high strength concrete technology was developing rapidly in our country. However, high-strength concrete detection technology is relatively backward. According to the characteristic of the pumping concrete in Tangshan area and the requirements of JGJ/T23-2001, The paper adopted representative materials of Tangshan to divide high strength concrete test blocks which strength grade is from C50 to C80 into 4 ages of 14 days, 28 days, 60 days and 90 days, then adopted high strength concrete rebound apparatus to experimental research by the rebound method. At last, the test data was collected, and applied regression analysis theory, then used the principle of least square method for regression analysis. The optimal pumping concrete strength rebound curve formula could be obtained.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

3239-3242

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.3239

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Online since:

January 2012

Authors:

Hai Bin Chen, Hui Dong Lu, Nan Ge, Xiao Jun Tong

Keywords:

High-Strength Concrete (HSC), Nondestructive Testing (NDT), Rebound Method, Regression Analysis

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References

[1] Technical Specification for Inspection of Premixed (pumped) of Concrete Compressive Strength by Supersonic-ReboundMethod, DBT-04-2003. Tang Shan: The Building Bureau of Tangshan, 2003.

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[2] The People's Republic of China industry standard JGJ/T23-2001. Technical specification for inspection of concrete compressive strength by rebound method. Approved by the People's Republic of China Ministry of Construction; October 2001. p.32

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[3] Hen JV, Xie qianshi, Pan Chengyi. The probability theory and mathematical statistics[M]. Beijing: Higher Education Press, 2008.

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