On a nearby project I heard that they had suspected that there was asbestos in the concrete slab? I was wondering what the purpose of this would be. My first idea was possibly to increase strength and then I read that sometime is was used in concrete roofs to make them lighter. So I am thinking that it does provide strength while allowing the concrete to be lighter, but that wouldn't explain a slab on grade.
Orignal From: Why would there be asbestos in a concrete slab?
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