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Forum: Concrete mix


Topic:

What is the hardiness of concrete?

  from 01.08.2011 14:28

Q: What is the resistance of concrete to frost? Vladimir.     leave a reply


 from 01.08.2011 14:28

A: Frost concrete M250 and other types - it's the largest number of cycles of freezing and thawing. Verification is performed during the test, where samples of defined dimensions can withstand without reducing the compressive strength of more than 5% as compared with the samples tested at an equivalent age, and for road concrete, in addition, no weight loss of 5%. To date, the following marks on frost resistance: F50, F75, F100, F150, F200, F300, F400, F500.