ASTM C1622/C1622M-10 (R2016)e1 PDF Download

ASTM C1622/C1622M-10 (R2016)e1 is a standard specification for cold-weather admixture systems to be used in hydraulic-cement concrete when the temperature of the concrete immediately after placement will be low. The specification outlines the tests that need to be conducted on the cold-weather admixture system and the materials specified for the work. It provides three levels of testing: Level 1 for initial approval, Level 2 for limited retesting, and Level 3 for acceptance of a lot or for measuring uniformity.

The standard specifies the requirements for the performance of the cold-weather admixture system, including initial setting time, compressive strength, shrinkage, and durability. The tests need to be carried out using suitable concreting materials as described in the standard, and the results should comply with the values defined in Table 1 of the specification.

It is important to note that variations in test results are allowed within certain limits, and the compressive strength of the concrete containing the cold-weather admixture should not decrease with age. The standard also includes provisions for air-entrained concrete that may be exposed to freezing and thawing while wet. The standard provides detailed information on the different levels of testing and the requirements for compliance, and it includes notes and footnotes for explanatory purposes.