Effect of water over fresh concrete pier
Effect of water over fresh concrete pier
(OP)
Attached photos are of yesterdays 2 pm pour--16-inch >2500psi concrete piers cast in polyethelene form then wrapped with 5-7 inch straw waddle insulation with some suran wrap over.
Last nights temp at 34 degree low, tonight cold front at 18 degree low.
Difficult dewatering leads to water flowing up to poly forms within hour of pour, also resulting in wet(er) straw. No temp readings as of yet of interface between poly form and straw waddle.
QUESTIONS: Is there a detrimental effect of allowing water to pond so soon and then freeze around surface mounted form?
Last nights temp at 34 degree low, tonight cold front at 18 degree low.
Difficult dewatering leads to water flowing up to poly forms within hour of pour, also resulting in wet(er) straw. No temp readings as of yet of interface between poly form and straw waddle.
QUESTIONS: Is there a detrimental effect of allowing water to pond so soon and then freeze around surface mounted form?





RE: Effect of water over fresh concrete pier
RE: Effect of water over fresh concrete pier
Sorry--can't seem to post more than one photo per post
RE: Effect of water over fresh concrete pier
A trench should have been dug alongside all the piers and water sitting around the piers directed to drain into the trench, where it could be pumped away.
I would get a couple of portable heaters out there to protect the concrete.
RE: Effect of water over fresh concrete pier
Never had an opportunity to confirm that however.
RE: Effect of water over fresh concrete pier
The 2500 psi will have a low cement (low heat of hydration) and the temperature of the placed concrete may not be known or controlled. More information on the details would help and the main areas of concern since 2500 psi is an indication of something like "fill concrete".
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: Effect of water over fresh concrete pier