Concrete Canvas® is part of a revolutionary new class of construction materials called Geosynthetic Cementitious Composite Mats (GCCM). It is a flexible, concrete impregnated fabric that hardens on hydration to form a thin, durable, water proof and fire resistant concrete layer. Essentially, it’s concrete on a roll. Concrete Canvas® GCCM allows concrete to be used in a completely new way, and was originally developed for the award winning Concrete Canvas Shelters, a building in a bag that requires only water and air for construction.