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>micron-sized calcium silicate spheres Wonder what these will do when the concrete eventually degrades. How do these spheres act in the environment? what happe
by soperj 8y ago
>micron-sized calcium silicate spheres
Wonder what these will do when the concrete eventually degrades. How do these spheres act in the environment? what happens when they end up in the water system and are ingested by animals (including humans)?
- delinka 8y ago"Calcium silicate is used as an anticaking agent in food preparation, including table salt and as an antacid. It is approved by the United Nations' FAO and WHO bodies as a safe food additive in a large variety of products." [1] This does not invalidate your questions, however. No idea what happens when "anticaking agent" ends up in everything. 1 - https://en.wikipedia.org/wiki/Calcium_silicate#Use https://en.wikipedia.org/wiki/Calcium_silicate#Use
- UpshotKnothole 8y agoMicron sized should be fine, and they’re going to form a. God phase when hydrated so you don’t have to worry about long-term friability. Nanoscale would be a concern because of the ability to directly enter cells, but micron would be fine unless you’re breathing a cloud of the stuff when it’s fresh ad dry. Under normal wear and tear that won’t happen.
- jwilk 8y ago"a. God"?
- UpshotKnothole 8y agoMy fat fingers and iPad’s autocorrect is a bad combo. Should read: Gel phase. God phase would be... nifty?