Use of a composition comprising at least: • A binder base chosen from: ° a bitumen base, ° a pitch base, ° a clear binder, or ° a mixture of one or more of these binder bases, • An acid compound of general formula: R-(COOH)z wherein R represents a linear or branched, saturated or unsaturated chain comprising from 4 to 68 carbon atoms and z is an integer ranging from 2 to 4, • An amide compound of general formula: R'- n CONH- m -(NHCO) p n -R" wherein: - the R' and R" groups, which may be identical or different, represent a saturated or unsaturated and linear, branched or cyclic hydrocarbon-based chain comprising from 1 to 22 carbon atoms which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S, and R" may be H; - the X group represents a saturated or unsaturated and linear, cyclic or branched hydrocarbon-based chain comprising from 1 to 22 carbon atoms which is optionally substituted and which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S; - n, m and p are integers having a value of 0 or 1, independently of one another, and the compounds and are present in a weight ratio ranging from 10:1 to 1:16, for preparing a mastic asphalt composition. • A binder base chosen from: ° a bitumen base, ° a pitch base, ° a clear binder, or ° a mixture of one or more of these binder bases, ° a bitumen base, ° a pitch base, ° a clear binder, or ° a mixture of one or more of these binder bases, • An acid compound of general formula: R-(COOH)z wherein R represents a linear or branched, saturated or unsaturated chain comprising from 4 to 68 carbon atoms and z is an integer ranging from 2 to 4, • An amide compound of general formula: R'- n CONH- m -(NHCO) p n -R" wherein: - the R' and R" groups, which may be identical or different, represent a saturated or unsaturated and linear, branched or cyclic hydrocarbon-based chain comprising from 1 to 22 carbon atoms which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S, and R" may be H; - the X group represents a saturated or unsaturated and linear, cyclic or branched hydrocarbon-based chain comprising from 1 to 22 carbon atoms which is optionally substituted and which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S; - n, m and p are integers having a value of 0 or 1, independently of one another, and the compounds and are present in a weight ratio ranging from 10:1 to 1:16, for preparing a mastic asphalt composition. - the R' and R" groups, which may be identical or different, represent a saturated or unsaturated and linear, branched or cyclic hydrocarbon-based chain comprising from 1 to 22 carbon atoms which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S, and R" may be H; - the X group represents a saturated or unsaturated and linear, cyclic or branched hydrocarbon-based chain comprising from 1 to 22 carbon atoms which is optionally substituted and which optionally comprises heteroatoms, such as N, O or S, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S; - n, m and p are integers having a value of 0 or 1, independently of one another, and the compounds and are present in a weight ratio ranging from 10:1 to 1:16, for preparing a mastic asphalt composition.