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    ASTM D6760-02

    Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing
    • 발행일 : 2002-01-10
    • 발행기관 : ASTM
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분야 04.09 : 토양, 석재 (Ⅱ)
적용범위

1.1 This test method covers procedures for checking the homogeneity and integrity of concrete in a deep foundation such as bored piles, drilled shafts, concrete piles or augercast piles. This method can also be extended to diaphragm walls, barrettes, dams etc. The test measures the propagation time and relative energy of an ultrasonic pulse between parallel access ducts installed in the pile or structure. This method is most applicable when performed between tubes that are installed during pile construction.

1.2 Similar techniques with different excitation sources or single access ducts, or both, exist, but these techniques are outside the scope of this test method.

1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.

1.3.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.

1.4 LimitationsProper installation of the access ducts is essential for effective testing and interpretation. The method does not give the exact type of defect (for example, inclusion, honeycombing, lack of cement particles, etc.) but rather only that a defect exists. The method is limited primarily to testing the concrete between the access ducts and thus gives little information about the concrete outside the reinforcement cage to which the access ducts are attached when the tubes are attached to the inside of the reinforcement cage.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

국제분류(ICS)코드
페이지수 6
Edition 02

이력정보

No. 표준번호 표준명 발행일 상태
1 ASTM D6760-16상세보기 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing (Withdrawn 2025) 2016-12-01 폐지
2 ASTM D6760-14상세보기 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing 2014-06-01 구판
3 ASTM D6760-08상세보기 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing 2008-01-01 구판
4 ASTM D6760-02상세보기 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing 2002-01-10 구판

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