Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM C457-98

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

Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete C0457-98 ASTM|C0457-98|en-US Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete Standard new BOS Vol. 04.02 Committee C09
$ 83.00 In stock

Scope

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). 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 inch-pound units are to be regarded as the standard.

1.5 This standard does not purport to address all of the safety problems 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 Notes 3 and 6.

Price:
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Book of Standards Volume: 04.02
Developed by Subcommittee: C09.65
Pages: 14
DOI: 10.1520/C0457-98
ICS Code: 91.100.30