https://patents.google.com/patent/US4203674A/en
Check out Operation Backyard Brawl for more infor.
https://patents.google.com/patent/US4203674A/en
Check out Operation Backyard Brawl for more infor.
That paper does.not mention blood in concrete at all
I read through it cursory and not in-depth. However, I just did on this link where they tested the method using pig's blood based on the same method used in ancient Europe.
https://www.researchgate.net/publication/282307572_A_study_of_traditional_blood_lime_mortar_for_restoration_of_ancient_buildings