Following on from Previous experiments by Paul Ridley reusing plastic bottles, waxed cuboid cartons & cardboard over several years, mainly for packaging items & insulation, I have some more ideas.
A more urgent case for plastic reuse can be made with recent articles highlighting recycling problems, like The Big Plastic Count: Survey shows 'recycling doesn't work'
As the world has changed with major inflation, material shortages & european war. I believe it's time to revisit some of these ideas. Perhaps such ideas could be used in Ukraine to help protect from sharpnel while also insulating structures internally or externally from harsh winters.
I mentioned protection from projectiles on the blog post: Design method to reuse existing refugee camp tents and further insulate them from temperature / fire / projectiles at low cost
It has occurred to me that using water inside a can / bottle for thermal mass & projectile protection that has a squirt of expanding foam inside at either end to strengthen the structure & seal the water in.
Crumpled or shredded plastic /polysterene / cardboard (see UBUNTU BLOX ) could also be used instead of water for impact
Fabric could be reused at either end & glued in place with the expanding foam for additional strength. I will update this blog with photos & progress shortly & welcome comments / related experiments
update: 20-7-22 - Relevant full reseach paper on metal drink can insulation in concrete slabs