Nov 28, 2016 #1 PEFLWI Structural Oct 23, 2012 120 How long should concrete spread foundations cure before they are backfilled?
Nov 28, 2016 #2 MotorCity Structural Dec 29, 2003 1,787 Depends on a lot.....temperature, humidity, curing process, construction sequencing, steel erection, etc. I would say a minimum of 3 days with good cylinder breaks, but otherwise 7 days or until 75% of f'c is obtained. Upvote 0 Downvote
Depends on a lot.....temperature, humidity, curing process, construction sequencing, steel erection, etc. I would say a minimum of 3 days with good cylinder breaks, but otherwise 7 days or until 75% of f'c is obtained.
Nov 28, 2016 #3 irishengdave Structural Jan 29, 2013 28 Assuming 30mpa concrete and normal compaction equipment, 3 days should give you about 15mpa strength. Plenty of capacity. Ask for 3 day cylinder results before compaction. Upvote 0 Downvote
Assuming 30mpa concrete and normal compaction equipment, 3 days should give you about 15mpa strength. Plenty of capacity. Ask for 3 day cylinder results before compaction.
