I read somewhere that the concrete inside of Hoover dam was intended to take
some huge amount of time, like 50 years, to cure.
-Curt
Date: Wed, 5 Aug 2009 09:06:13 -0400
From: "LarryT" <l02tur...@comcast.net>
Subject: Re: [MBZ] O/T Concrete Mixer Trivia
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
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concrete trivia ;-)
When building very large concrete structures, like dams, pipes are built
into the concrete so cooling water can circulate to keep the concrete cool
as it cures to prevent cracking. New slabs are wet down & covered with
plastic dropcloths to keep the water from evaporating too quickly.
The curing is a chemical reaction between the cement and water - even if
it's cold, once the reaction starts it will create its own heat -
Larry T
91 300D
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