ASTM C666/C666M − 15 Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing

Scope of ASTM C666/C666M − 15 Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing

1.1 This test method covers the determination of the resistance of concrete specimens to rapidly repeated cycles of freezing and thawing in the laboratory by two different procedures: Procedure A, Rapid Freezing and Thawing in Water, and Procedure B, Rapid Freezing in Air and Thawing in Water.

Both procedures are intended for use in determining the effects of variations in the properties of concrete on the resistance of the concrete to the freezing-and-thawing cycles specified in the particular procedure.

Neither procedure is intended to provide a quantitative measure of the length of service that may be expected from a specific type of concrete.

Significance and Use of ASTM C666/C666M − 15 Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing

3.1 As noted in the scope, the two procedures described in this test method are intended to determine the effects of variations in both properties and conditioning of concrete in the resistance to freezing and thawing cycles specified in the particular procedure.

Specific applications include specified use in Specification C494/C494M, Test Method C233, and ranking of coarse aggregates as to their effect on concrete freeze-thaw durability, especially where soundness of the aggregate is questionable.