I was in Lowes yeseteday and I walked by a full pallet of bagged cement
mix. And after I got past it I realized how much heat that pallet was
holding. So I went back for another feel. I paid particular attention
to how cool I felt before I went back and sure enough that thing was
blazing in comparison.
I mentioned it to the guy working there and he said it just came from
outside. But it was a pretty cool day (outside) here in NEPA. This
tells me a great deal about the properties of concrete and how hot it
gets and how it retains heat. It was something I didn't see as being so
obvious before now. I guess it goes with the getting older and more
sensitive thing..Just though it was interesting.
On Tue, 5 Jun 2007 16:14:23 -0400, "Joseph Meehan"
One show about the dam (iirc); tells, that had they not taken action
to assist the curing it would take 300 years for the concrete to cure.
The new by-pass bridge just below the dam is now said to have the
largest single pour in the world.
..through the use of electrical or duct tape, achieve the configuration in the
I can remember, about 30 years ago, when building a house, I went to a
building materials supplier - these are the guys who supply masonry
materials to the trades - to pick up some Portland and mortar mixes.
I helped to load it into the pickup from their storage shed which contained
several hundred bags. It was all hot when lifted from the pile. This is why
it doesn't last long when stored, particularly as a single bag in an area
with some dampness. The moment it is made, it starts absorbing moisture and
curing. It really does have a short shelf life.
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