0 FacebookTwitterPinterestWhatsapp Training How to Make Papercrete (Off-Grid Building Material) by David Walker June 21, 2026 by David Walker June 21, 2026 0 comments Estimated reading time: 26 minutes Papercrete was invented in the 1920s, but it was so easy to make, no one bought it. Papercrete has been used to build homes, walls, … Read more