ASTM C233 – Standard Test Method for Air-Entraining Admixtures for Concrete
Description:
Significance and Use
3.1 This test method is used to develop data for comparison with the requirements of Specification C260/C260M. These tests are based on arbitrary stipulations permitting highly standardized testing in the laboratory, and are not intended to simulate actual job conditions.
Scope
1.1 This test method covers the testing of materials proposed for use as air-entraining admixtures in the field.
1.2 The text of this test method references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 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. Some values have only SI units because the inch-pound equivalents are not used in practice.
NOTE 1: Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
ASTM C232