Little facts you didn't know about concrete

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Jim Duncan says:

November 6, 2003 at 12:46 pm

Ok, so maybe they didn’t do that great a job explaining the curing process of concrete. Could send ’em a few links, I suppose….

All about concrete: http://www.rosepaving.com/concrete.htm
Hoover Dam, still getting stronger: http://www.trmca.org/solutions/faq11.htm

quanta says:

November 7, 2003 at 2:55 pm

‘Tis true, I heard that the concrete in the Roman viaducts are incredibly strong, having cured for two millennia.

P.S. The same applies to crazy glue too. While 60-70% of strength is achieved in a matter of minutes, it takes 24-48 hours to reach optimal strength. Don’t you love inversely proportional models?

Tom says:

November 7, 2003 at 6:18 pm

This week’s "New Yorker" has an article about concrete and cement that, of course, mentions the Hoover dam. You might find it interesting, Jim.

yousef says:

November 8, 2003 at 1:28 pm

In other news, steel has been found to be weaker when molten. :)

Pete Austin says:

November 10, 2003 at 6:10 am

Concrete releases CO2 when its cement is produced, but absorbs it as the concrete cures.

"Basic eco-cement produces about a tenth as much carbon dioxide as regular Portland cement. When organic material such as hemp fibre is added, a concrete block can be built that is a net carbon sink. In other words, a building can be made to function like a tree"
http://society.guardian.co.uk/societyguardian/story/0,7843,964160,00.html

pdq says:

November 11, 2003 at 12:16 pm

I would expect the alkalinity of the concrete to degrade the hemp over time. I wouldn’t want to rely on hemp instead of steel to add tensile strength to concrete.

The Old New Thing says:

October 14, 2004 at 10:02 am

Molten rock makes volcano glow red.

Date:	November 6, 2003 / year-entry #119
Tags:	news-flash;non-computer
Orig Link:	https://blogs.msdn.microsoft.com/oldnewthing/20031106-00/?p=41933
Comments:	7
Summary:	Concrete is stronger once it has hardened. Thanks, Associated Press! I learn something new every day.

Little facts you didn’t know about concrete