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Old 02-16-2010, 01:10 PM   #11
classicman
barely disguised asshole, keeper of all that is holy.
 
Join Date: Nov 2007
Posts: 23,401
I understand that it actually contracts when it dries. Thats why they put joints in concrete to allow the concrete to crack in a neat, straight line at the joint when the volume of the concrete changes due to shrinkage.
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