In this review, the author talks in detail about cheap and environmentally friendly insulation for a private house made from hemp fires - this is the so-called bonded concrete.
The author positions bonded concrete as an alternative to polystyrene plates, which are often used for wall insulation.
The thickness of one block of bone concrete is 70 mm, the width is 200 mm, the length is 500 mm. But the sizes may be different.
Installation of blocks made of bonded concrete is not difficult - they are attached to the wall similarly to polystyrene foam.
Moreover, when using bonded concrete there is no need to use a plaster mesh.
3 advantages of blocks made of bonded concrete
The first and perhaps most significant advantage of this material is that the bonded concrete is environmentally friendly, unlike polystyrene.
Kostrobeton also has antiseptic properties - no fungus forms on its surface. This is also a very important plus of this material.
The second advantage is, of course, the low cost of bonded concrete. It costs about the same as polystyrene, but it does not need to buy an additional reinforcing mesh.
The third plus is that bone concrete has low thermal conductivity and, unlike foam, it can "breathe".
The process of making blocks of bone concrete
First of all, from pieces of chipboard (you can also use laminated plywood), you need to make a form for pouring blocks from bone concrete.
At the next stage, the author kneads the solution - one bucket of cement is required on two buckets of hemp fires. The author adds water by eye.
With the prepared solution, fill the form for pouring bonded concrete, periodically tamping it.
A detailed review and the manufacturing process of cheap and environmental insulation made of bonded concrete can be found in the video on the website.