This comment is so naive and ignorant, it hurts. I'm sorry to be so harsh, really, but I hear this bullshit depressingly often, and ignorance like this has rea

This comment is so naive and ignorant, it hurts. I'm sorry to be so harsh, really, but I hear this bullshit depressingly often, and ignorance like this has really contributed to an epidemic of asbestos contamination that is still very much with us. Cement is a temporary matrix. Concrete and other cementitious structures are constantly weathering, degrading, and being demolished all around us. Right in my own back yard a 30-year old concrete patio is spalling, the flakes slowly turning to fine dust with every foot fall. Dust which is then blown about my yard and tracked into my house. Do you imagine that dust would remain "completely not dangerous" if it contained asbestos? And apparently you've never worked with concrete or grout, because otherwise you'd have witnessed the unavoidable clouds of cement dust that erupt any time you open a bag, pour, shovel, or even breathe on dry mix. > it'd not be great to do lines of ground up asbestos fiber cement, but that has a lot more to do with it not being a good idea to do lines of cement in general and nothing about the asbestos side. Any asbestos in ground-up fiber-bearing cement would be, by definition, friable. That's what the word means. Long time ago I'd hear people say the same thing about asbestos cement siding -- as though the cement will encase the asbestos for all eternity. As though no one ever re-sides their house, or as if re-siding never involves breaking or disturbing the old siding. The abject stupidity of such assumptions is immediately apparent the moment you break a piece of siding, either during installaion or removal, and you see a puff of asbestos and cement dust spring into the air. Again, I'm sorry for speaking harshly, but asbestos kills, and people like you who spread the "asbestos is safe when properly applied" bullshit have made it that much harder for us to get rid of the stuff.