Large Ranging of Ultrasonic Testing Inspection Internal Defects of Mass Concrete Structure

Lin Liu; Wen Zhao

doi:10.4028/www.scientific.net/AMM.357-360.1492

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Large Ranging of Ultrasonic Testing Inspection...

Large Ranging of Ultrasonic Testing Inspection Internal Defects of Mass Concrete Structure

Abstract:

The ranging greater than 3m is not accorded with china engineering construction standardization association standard TECHNOLOGICAL SPECIFICATION FOR INSPECTION OF CONCRETE DEFECTS BY ULTRASONIC METHOD[CECS 21:200 (Transducer spacing is 2~3m). This paper studied large ranging of ultrasonic test mass concrete structure, and analyzed a project instance that was inspected the internal defects of mass concrete structures with various test methods, compared of those results. As detection is shown, first, with the test distance increased to 5.1m, the velocity of sound shows a linear trend of continuous development trend. Second, responds to improve of concrete strength, the velocity of sound increases, but not shows a linear trend. In addition, with the test distance increasing, concrete strength increases, but the velocity is down. A large ranging of ultrasonic test method was developed based on these observations.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

1492-1497

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.1492

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Online since:

August 2013

Authors:

Lin Liu, Wen Zhao

Keywords:

Large Ranging, Sound Velocity, Ultrasonic Testing (UT)

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References

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