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ASTM C457/C457M-12

Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

standard by ASTM International , 12/01/2012

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Full Description

1.1 This test method describes procedures for microscopical determinations of the air content of hardened concrete and of the specific surface, void frequency, spacing factor, and paste-air ratio of the air-void system in hardened concrete (1).2 Two procedures are described:

1.1.1 Procedure A, the linear-traverse method (2, 3).

1.1.2 Procedure B, the modified point-count method (3, 4, 5, 6).

1.2 This test method is based on prescribed procedures that are applied to sawed and lapped sections of specimens of concrete from the field or laboratory.

1.3 It is intended to outline the principles of this test method and to establish standards for its adequate performance but not to describe in detail all the possible variations that might be used to accomplish the objectives of this test method.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.5 This standard does not purport to address all of the safety concerns 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. For specific hazard statements see 8.3 and 10.1.

 

Product Details

Published:
12/01/2012
Number of Pages:
15
File Size:
1 file , 430 KB
Redline File Size:
2 files , 1.2 MB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. ASTM C457/C457M-23a


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Most Recent

  2. ASTM C457/C457M-23


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  3. ASTM C457/C457M-16


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  4. ASTM C457/C457M-12

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    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  5. ASTM C457/C457M-11


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  6. ASTM C457/C457M-10a


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  7. ASTM C457/C457M-10


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  8. ASTM C457-09


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  9. ASTM C457-08d


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  10. ASTM C457-08c


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  11. ASTM C457-08b


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  12. ASTM C457-08a


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  13. ASTM C457-08


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  14. ASTM C457-06


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version

  15. ASTM C457-98


    Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

    • Historical Version