I use water glass in ferrocement, Also called sodium silicate and there is lithium silicate, can be bought from chemical co by 55 gallon drum(cheapest way to buy, prob around 750.00 for drum Brentag)
I mix with 1/2 water(dont let it freeze) and add 2oz of the mixture to 10 pds cement ,20pd sand, 5 lbs fly ash 1oz fiber, seem to help hold everything together more pasty, and supposed to grab fee lime to make a stronger concrete?
Then after applying thin layers into a steel mesh, we take the same mixture in a sprayer and apply to both sides to seal while curing and hardening the out surface? I think the cement mixture draws the silicate into the matrix, water resistant but not water proof, but should grab free lime in concrete and make it less permeable?
Also waterglass or Sodium silicate is fire resistant when mixed with shredded paper? you can coat wood with it to make fire resistant.
the shredded paper insulation you buy may have it in?
No loose situation with paper crete, just unsure how much you can use, prob more than in concrete, too much in concrete causes early cure and too much may weaken concrete if cure too fast, papercrete could handle more from paper being coated. may want to coat paper and let dry before making paper crete?
It is water soluable.
__._,_.___
