: Freezing usually occurs at temperatures between -16∘Cnegative 16 raised to the composed with power C -20∘Cnegative 20 raised to the composed with power C , while thawing occurs in water at +18∘Cpositive 18 raised to the composed with power C +22∘Cpositive 22 raised to the composed with power C 3. Methods of Testing
: The average compressive strength of the frozen/thawed specimens has not decreased by more than 5% compared to the control specimens. gost 10060 2017
: Once the target number of cycles (the "F" grade) is reached, test the "main group" for compressive strength. 5. Evaluation Criteria Basic Method 2 : Test a "control group"
The standard defines several methods based on the intended use of the concrete: Description Primary Use Case Freezing in air and thawing in water. General civil and industrial buildings. Basic Method 2 gost 10060 2017
: Test a "control group" of specimens for compressive strength before any freeze-thaw cycles. Cycling :