FIELD: manufacture of building materials. SUBSTANCE: solid formulation has bend resistance at least 0.5 N sq.mm and comprises solid particles (70-99%) and hydrocarbon binder (30 to 1%) containing 15 to 95% asphaltenes with at least 60% aromatic carbon atoms and 5 to 85% additional hydrocarbons provided that said solid particles are not entirely carbon particles. EFFECT: increased assortment of building materials. 11 cl, 17 ex
