The products produced by the DHC to meet minimum standards for the Bloc lightweight concrete is made from a mixture of cement, fine aggregate, or foaming agent used for the gas bearing structure, bearing the thermal insulation in buildings under TCXDVN 316-2004 and are checked by TCXDVN 317-2004 (for foam concrete) and ISO 7959:2008 - applied to the blocks air, solidifying the general conditions apply (referred to as AAC), used for construction.