Primitive Technology: Geopolymer Cement (Ash and Clay)

Submitted ⁨⁨8⁩ ⁨months⁩ ago⁩ by ⁨13esq@lemmy.world⁩ to ⁨videos@lemmy.world⁩

https://youtu.be/oaCfKda82nA?si=XQjS5PbnlFNVMbgm