1 day cure concrete
1 day cure concrete
(OP)
Does anyone have any experience using concrete with a one day cure time? I'm aware of the use of high early strength concrete for three day cures, but one day seems a little quick in my experience. If we were to go one day strength of 35 MPa (say using high early strength concrete with a 70 MPa 3 day or whatever the plant decides on), are there issues with letting the concrete cure only one day? I would expect substantial cracking because the concrete must be releasing lots of heat






RE: 1 day cure concrete
RE: 1 day cure concrete
If there is no reinforcing steel, we used calcium chloride in concrete to encase polyethylene pipe under public highway crossings and reopen the highway the same day.
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: 1 day cure concrete
SRE, 35 MPa is about 5000 psi.
RE: 1 day cure concrete
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: 1 day cure concrete
http://www.virginiadot.org/business/resources/bu-m...
http://www.ce.memphis.edu/1101/notes/concrete/PCA_...
https://www.dot.state.oh.us/Divisions/Construction...
RE: 1 day cure concrete
RE: 1 day cure concrete
Professional and Structural Engineer (ME, NH)
American Concrete Industries
www.americanconcrete.com
RE: 1 day cure concrete
Natural process of hardening, without steam
RE: 1 day cure concrete
https://www.youtube.com/watch?v=-ZN86lo3_20
RE: 1 day cure concrete
Scaffolding and form supports were anchored further down the chimney shell (in concrete several days old, instead of the one day old concrete at the time of the accident).
Numerous concrete cylinders were taken for each lift, and were tested daily. We had a fully equipped on-site test lab to support all concrete activities for the entire plant construction. My recollection of 500 psi for the one day old concrete (see my post above) is surely flawed, must have been higher.
Those changes, plus the fact that SC is warmer than WV, convinced us to proceed with the award. There were no problems.
In the video, I was surprised to see Mr. Velivasakie, of LZA. He worked with us on our own corporate office building construction fiasco investigation in 1990.
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: 1 day cure concrete