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Slight correction - I think sea sand is okay in concrete, it's the desert sand that's no good, too rounded. But there's a lot of desert sand in China.
by EdwardDiego 4y ago
Slight correction - I think sea sand is okay in concrete, it's the desert sand that's no good, too rounded. But there's a lot of desert sand in China.
- eloisius 4y agoYou're also correct, but sea sand contains salt, which is corrosive to the steel reinforcement bars and reactive with other minerals. Such concrete fails catastrophically.