Just add water concrete cloth This stuff is amazing! You could even build a shelter with it. It is actually concrete in a flexible cloth form. Add water it becomes hardened concrete! FARM SHOW - Just Add Water: "Concrete Cloth"
How to Build a Metal Melting Furnace for Casting. Melting aluminum, brass, or other mid-temperature melting point metals requires over 1000 degree temperatures. To build a simple home made furnace for casting metals you need to meet some.