ASTM C457/C457M-23 82 PDF Download
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. Three procedures are described:
1.1.1 Procedure A-Linear-traverse method.
Product Details
- Published:
- 01/01/2023
- Number of Pages:
- 17
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- 1 file , 880 KB
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