Contracts for dismantling, demolition, or removal of improvements are subject to either the Service Contract Act (4l U.S.C. 351-358) or the Davis-Bacon Act (40 U.S.C. 3141 et seq.). If the contract is solely for dismantling, demolition, or removal of improvements, the Service Contract Act applies unless further work which will result in the construction, alteration, or repair of a public building or public work at that location is contemplated. If such further construction work is intended, even though by separate contract, then the Davis-Bacon Act applies to the contract for dismantling, demolition, or removal.