1. The 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 (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)nCONH-(X)m-(NHCO)p(NH)n-R"(ll)
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, C5-C24 hydrocarbon-based rings and/or C4-C24 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, C5-C24 hydrocarbon-based rings and/or C4-C24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such asN, OorS;
n and 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,
for preparing a mastic asphalt composition.
2. A mastic asphalt composition comprising:
(i) 5% to 20% by weight of a composition comprising at least:
* A binder base chosen from:
0 a bitumen base,
0 a pitch base,
0 a clear binder, or
0 a mixture of one or more of these binder bases,
* An acid compound of general formula (I):

K-(,tAJU|-|)z(JJ
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)nCONH-(X)m-(NHCO)p(NH)n-R"(ll)
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, C5-C24 hydrocarbon-based rings and/or C4-C24 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 Nf 0 or S, C5-C24 hydrocarbon-based rings and/or C4-C24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S;
- n and 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
(ii) 15% to 40% of fines,
(iii) from 15% to 45% of sand,
(iv) from 10% to 45% of stone chippings,
the percentages being expressed by weight relative to the total weight of the
composition.
3. The mastic asphalt composition as claimed in claim 2, wherein the compounds (i) and (II) are present in a weight ratio ranging from 5:1 to 1:9.
4. The mastic asphalt composition as claimed in either one of claims 2 and 3, wherein the additive (I) is a diacid of general formula HOOC~CwH2w-COOH, wherein w is an integer varying from 4 to 22.
5. The mastic asphalt composition as claimed in any one of claims 2 to 4, which comprises from 0.1% to 5% by weight of the additive (I) relative to the total weight of the binder composition.

6. The mastic asphalt composition as claimed in any one of claims 2 to 5, wherein the additive (II) is chosen from those of formula (I1A): R'-CONH-(X)m-NHCO-R" (HA) 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, C5-C24 hydrocarbon-based rings and/or C4-
C24 hydrocarbon-based heterocycles comprising one or more heteroatoms,
i such as N, O or S;
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, C5-C24 hydrocarbon-based rings and/or C4-C24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such asN.OorS;
- m is an integer having a value of 0 or 1.
) 7. The mastic asphalt composition as claimed in any one of claims 2 to 5, wherein the additive (II) is chosen from those of formula (MB): R'-CONH-R" (IIB) wherein;
the R' and R" groups, which may be identical or different, represent a
i 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, C5-C24 hydrocarbon-based rings and/or C4-C24 hydrocarbon-based heterocycles comprising one or more heteroatoms, such as N, O or S. )
8. The mastic asphalt composition as claimed in any one of claims 2 to 7, wherein the compound of general formula (II) is chosen from:
-. hydrazide derivatives such as: C5H11-CONH-NHCO-C5H1,, C9H19-CONH-
NHCO-C9H19, C11H23-CONH-NHCO-C11H23, C17H35-CONH-NHCO-C17H35, or
i C2iH43-CONH-NHCO-C2iH43;
- diamides such as N,N'-ethylenedi(laurylamide) of formula C11H23-CONH-CH2-
CH2-NHCO-C11H31, N,N'-ethylenedi(myristylamide) of formula C13H27-CONH-
CH2-CH2-NI-ICO-C13H27, N,N'-ethylenedi(palmitamide) of formula C15H31-
CONH-CH2-CH2-NHCO-C15H3lj N,N'-ethylenedi(stearamide) of formula
) Ci7H35-GONH-CH2-CH2-NHCO-C17H35;

monoamides such as laurylamide of formula C11H23-CONH2, myristylamide of formula C13H27-CONH2, palmitamide of formula C15H31-CONH2, stearamide of formula C17H35-CONH2.
9. A process for manufacturing a mastic asphalt composition as claimed in any one
of claims 2 to 8, which comprises at least the steps of:
heating the aggregates to a temperature ranging from 100°C to 180°C,
preferably from 120°C to 160DC,
mixing the aggregates with the binder composition,
kneading the mixture,
obtaining a mastic asphalt composition.
10. The process as claimed in claim 9, wherein the binder composition is used in a form that is solid under cold conditions and divided.
11. The process as claimed in claim 10, which does not comprise a step of heating the binder composition before it is mixed with the aggregates.
12. A surfacing of a surface, this surfacing being obtained by means of a process comprising the preparation of a mastic asphalt composition as claimed in any one of claims 2 to 8, the application thereof and the spreading thereof on said surface.