A binder composition comprising at least: • A binder base chosen from: ∘ an oil, ∘ a bitumen base, ∘ a pitch, ∘ a clear binder, or ∘ a mixture of one or more of these binder bases, • An acid compound of general formula (I): R-(COOH) z (I) 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 (II): R'-(NH) n CONH-(X) m -(NHCO)p(NH) n -R" (II) 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 (I) and (II) are present in a weight ratio ranging from 10:1 to 1:16, and the sum of the weights of the additives of formula (I) and of formula (II) represents from 0.5% to 30% by weight, relative to the total weight of the binder composition, said binder composition being in a form that is solid under cold conditions and divided. • A binder base chosen from: ∘ an oil, ∘ a bitumen base, ∘ a pitch, ∘ a clear binder, or ∘ a mixture of one or more of these binder bases, ∘ an oil, ∘ a bitumen base, ∘ a pitch, ∘ a clear binder, or ∘ a mixture of one or more of these binder bases, • An acid compound of general formula (I): R-(COOH) z (I) 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 (II): R'-(NH) n CONH-(X) m -(NHCO)p(NH) n -R" (II) 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 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 <EOS>