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Old 12-26-2018, 08:33 AM   #4294 (permalink)
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Some aircrete have some sand, but most it's just detergent foam (veru tick) and poortland cement

Quote:
Originally Posted by freebeard View Post
All Darc Concrete contains gravel-sized rock and sand. Mortar contains sand. There're three grades below rock: sand, silt and clay; and one of the means of greening deserts is clay that has been blasted by sound waves into nano-scale particles. Then there are other admixtures, like plastic vacuum miicro-bubbles or cork dust. So the cement can be mixed with more than air bubbles.
 
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