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View Full Version : Is air entrained concrete stronger?


Dball2008
Jan 5, 2010, 06:03 PM
Is air entrained concrete stronger?
Can mortar be air entrained as well?
Can air entrained concrete be used for footings or foundation?

ballengerb1
Jan 5, 2010, 07:14 PM
Yes, yes and yes. http://www.lime.org/BLG/McGinley.pdf

smearcase
Jan 5, 2010, 08:18 PM
Air entrained concrete is more durable (especially with regard to freeze-thaw cycles) and more workable.
Too much air-entrainment can greatly reduce compressive strength as the microscopic air bubbles are replacing sand, cement and stone. Air content can be measured on site. This site offers some discusion also:Air-Entraining (http://www.fhwa.dot.gov/infrastructure/materialsgrp/airentr.htm)

Dball2008
Feb 9, 2010, 03:55 PM
Thank you all! Very helpful!