Fibres and Proportions
If one were to add fibre to aircrete to add tensile strength, what sort of fibre would be best and in what concentrations? Has there been any testing to that effect?
We tested PVA fibers and it worked great. It was recommended by Steve Kornher of Flying Concrete - http://www.flyingconcrete.com/
Steve does amazing work if you haven't seen it, check it out. He's been working with concrete for decades and recommends PVA fibers. We've tried to get hemp fibers but no luck yet. We prefer to reinforce the surface with poly reinforcing fabric - https://www.apoc.com/products/roof-reinforcements-firm-polyester-reinforcing-fabric-apoc-482f
With surface reinforcement there isn't need for interior reinforcement in our applications.
What do you use the adhere the fabric to the AC?
What would you use to reinforce the subfloor for a load baring capacity of 2800 psi application?
All you have to do is add sand to your cement and use a little less foam and you can get the 2800 psi you're looking for. I would also add some Micro Rebar.
If you added either basalt or micro rebar your aircrete would be stronger but you wouldn't be able to use your long cutting blade to cut multiple blocks from one slab right? I would like the strength that the fibres provide but I absolutely don't want to be molding each individual block if I don't have to. Any ideas?