Here is a post I made all about crash testing concrete. I stated out with abunch of tests I thought I should do but it really only ever boiled down to 2 things.
Firing a rifle a samples and Cost vs benefit.
Possible applications are clearly shelter related, counter tops, drive ways, starting your own military state, ect.
https://www.survivalmonkey.com/threa...testing.59189/
I read lots and lots of papers. All of them where hyper application specific and the intended audience was people who could talk the talk and walk the walk. People who have spent decades planning, mixing or building with it.
My challenge was find something relevant. Then when i did find something relevant, was it testable, then see if I could get ahold of the thing, make it into a small sample, test it and see if it would be worth it to use on a large scale.
Even knowing sometimes it wouldn't be worth it. Test it any way maybe a cheaper alternative would present it self in the future.
One set tests I knew wouldn't go anywhere, acrylic harder, super plastersizers and water reducers, these can be quite expensive. The cost was prohibitive but I later discovered free and cheaper alternatives by reading all those super application specific papers or reading about historical finds. People in antiquity where using some of these these and probably didn't have any idea why it worked.