Method for manufacturing slab articles from a base mix, comprising the following steps: a) preparing a mix comprising a preponderant amount, greater than 70% by weight, of glass frit and at least one binder; b) distributing the mix in a support or in a forming mould; c) compacting the mix contained in the support or in the slab forming mould; d) drying the compacted mix; e) sintering the compacted and dried mix by means of firing and obtaining the slab article; f) controlled cooling of the slab article; characterized in that the glass frit comprises: - a weight amount of silica (SiO 2) comprised between 62% and 68% relative to the overall weight of the frit; - a weight amount of alumina (Al 2 O 3) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of potassium oxide (K 2 O) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of calcium oxide (CaO) comprised between 18% and 26% relative to the overall weight of the frit; - a weight amount of magnesium oxide (MgO) comprised between 1% and 4% relative to the overall weight of the frit; and wherein the cooling step is performed in a controlled manner by modulating the cooling speed within a predefined temperature range not greater than 1.160°C and not less than 1.000°C in order to perform the at least partial devitrification and crystallization of the glass frit. a) preparing a mix comprising a preponderant amount, greater than 70% by weight, of glass frit and at least one binder; b) distributing the mix in a support or in a forming mould; c) compacting the mix contained in the support or in the slab forming mould; d) drying the compacted mix; e) sintering the compacted and dried mix by means of firing and obtaining the slab article; f) controlled cooling of the slab article; characterized in that the glass frit comprises: - a weight amount of silica (SiO 2) comprised between 62% and 68% relative to the overall weight of the frit; - a weight amount of alumina (Al 2 O 3) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of potassium oxide (K 2 O) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of calcium oxide (CaO) comprised between 18% and 26% relative to the overall weight of the frit; - a weight amount of magnesium oxide (MgO) comprised between 1% and 4% relative to the overall weight of the frit; and wherein the cooling step is performed in a controlled manner by modulating the cooling speed within a predefined temperature range not greater than 1.160°C and not less than 1.000°C in order to perform the at least partial devitrification and crystallization of the glass frit. - a weight amount of silica (SiO 2) comprised between 62% and 68% relative to the overall weight of the frit; - a weight amount of alumina (Al 2 O 3) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of potassium oxide (K 2 O) comprised between 3% and 5% relative to the overall weight of the frit; - a weight amount of calcium oxide (CaO) comprised between 18% and 26% relative to the overall weight of the frit; - a weight amount of magnesium oxide (MgO) comprised between 1% and 4% relative to the overall weight of the frit; and