> Gluing multiple panels together so that the corrugation alternates by 90 degrees every other panel makes them more sturdy, with wheat paste (1:5 mixture of flour and water) recommended as adhesive.
> Other tricks are folding over edges help to protect against damage, and integrating wood supports. Normal woodworking tools like saws can cut these glued-together panels. Adding the wheat paste to external surfaces can also protect against damage. By applying papier-mâché skills, a custom outside layer can be made that can be sanded and painted for making furniture, etc.
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"Concrete draping" is like paper-mache with landscape fabric soaked in concrete; to make planters, sculptures, possibly decorative facades
ScholarlyArticle: "Cardboard-confined rammed earth towards sustainable construction" (2025) https://www.sciencedirect.com/science/article/pii/S235201242...
"Making Corrugated Cardboard Stronger And Waterproof" (2025) https://hackaday.com/2025/06/15/making-corrugated-cardboard-... re: "Learn to Build With Cardboard! STRONG, Waterproof and Free." by NightHawkInLight: https://youtube.com/watch?v=45JhacvmXV8 :
> Gluing multiple panels together so that the corrugation alternates by 90 degrees every other panel makes them more sturdy, with wheat paste (1:5 mixture of flour and water) recommended as adhesive.
> Other tricks are folding over edges help to protect against damage, and integrating wood supports. Normal woodworking tools like saws can cut these glued-together panels. Adding the wheat paste to external surfaces can also protect against damage. By applying papier-mâché skills, a custom outside layer can be made that can be sanded and painted for making furniture, etc.
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"Concrete draping" is like paper-mache with landscape fabric soaked in concrete; to make planters, sculptures, possibly decorative facades
More CEB and sustainable construction and dream earthship notes:
From "Wikihouse: Open-Source Houses" https://news.ycombinator.com/item?id=38932603#38935713 .. https://westurner.github.io/hnlog/#comment-38935713 re: https://www.wikihouse.cc/ :
> TIL about The Liberator: The world's first open source compressed earth brick press. https://www.opensourceecology.org/back-to-compressed-earth-b...
> A multiple-CEB unit that makes interlocking blocks that don't require mortar could build on work from this project.
What about cardboard and rammed earth blocks?
> Add'l notes on CEB, Algae, Sargassum, Hemp in the 2024 International and US Residential Building Code, LEGO-like Hempcrete block: https://news.ycombinator.com/item?id=37693225
> FWIU Round homes fare best in windstorms: https://news.ycombinator.com/item?id=37175721#37188180
Deltec homes builds round homes (optionally on stilts) out of hurricane-prone North Carolina that consistently outperform in storms.
> And curvy half walls one brick wide don't fall down:
> [CEB] "Crinkle crankle wall" https://en.wikipedia.org/wiki/Crinkle_crankle_wall
> Some interlocking bricks don't require mortar.
Just BioFiber has developed LEGO-like Stacking, interlocking hempcrete blocks on structural forms, and an off-site forming and drying process.
> Are non-leaching bioplastic frames or filler comparatively economical for interlocking CEB?
InventWood has a "superwood" densified wood product that's 10X the strength of steel.
HempWood is a compressed tensile fiber product that's 20% stronger than Oak dimensional lumber of the same dimensions.
CEB: Compressed Earth Block: https://en.wikipedia.org/wiki/Compressed_earth_block