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What are some inexpensive materials that can replace cement?

I did research on the autoimmune disease Lupus. I discovered that there is an molecular compound called Silica in cement, and it seems to cause lupus; thus, I am wondering if there is a safer material that can be used that is about the same price as cement. #construction

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Carl’s Answer

Cement is a material found in concrete (cement, water, aggregate). It is true that there is silica in cement and can be dangerous then inhaled in dust form. The initial use of cement/concrete is safe but silica becomes an issue during sawcutting and demo of concrete. Alternatives to concrete are wood and steel.
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brian’s Answer

Hi - I think the better question might be if there's an alternative to using silica in the production of cement. I don't imagine that cement itself will be replaced anytime soon since we are so dependent on concrete as a society
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