Air entrained concrete.


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Old 09-19-01, 04:32 PM
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Question

I have a project where I will make a small amount of concrete in a powered mixer. I would like to add air to the mix for greater resistance to cracking in freezing temperatures, but have not been able to get any of the chemical to do this. A couple of "old timers" both told me to just add dish soap to do the same thing, but could not provide specific details.
Does anyone know about this?
 
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Old 09-20-01, 06:24 PM
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That is old! I guess I'm on my way out also. Formerly Ivory Dish Soap was used (not detergent). Liquid Ivory has been discontinued. Take a bar of Ivory and shave it with a potato peeler into hot water...to liquid soap consistency. Afterward add a few drops of rubbing alcohol so that it doesn't re-congeal. Add one capful (the average household dish soap bottle size) to the water for a 6 cu. ft. batch.
 
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Old 09-21-01, 01:43 AM
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Bad choice of words! I meant "seasoned veterans" of the construction industry.
Ivory dish soap is available in my area. Your suggestion seems to be a good one so I'll give it a try.

Thanks.
 
 

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