laboratory air News
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ASTM C233 / C233M - 11 standard test method for air-entraining admixtures for concrete
This test method is used to develop data for comparison with the requirements of Specification C260. These tests are based on arbitrary stipulations permitting highly standardized testing in the laboratory, and are not intended to simulate actual job conditions. 1. Scope 1.1 This test method covers the testing of materials proposed for use as ...
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