Mastic asphalt composition for production of surfacings

Patent metadata

Field	Value
Publication number	US-11447418-B2
Application number	US-201716473136-A
Country	US
Kind code	B2
Filing date	Dec 20, 2017
Priority date	Dec 22, 2016
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A composition including 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). an amide compound of general formula (II): R′—(NH) n CONH—(X) m —(NHCO) p (NH) n —R″ (II) the compounds (I) and (II) being present in a weight ratio ranging from 10:1 to 1:16, for preparing a mastic asphalt composition. Mastic asphalt compositions and surfacings are thus obtained.

First claim

The invention claimed is:

1. A mastic asphalt composition comprising:
(i) 5% to 20% by weight 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) 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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, 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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms;
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,
wherein fines, sand and stone chippings are named aggregates, the percentages being expressed by weight relative to the total weight of the composition.

2. The mastic asphalt composition as claimed in claim 1 , wherein the compounds (I) and (II) are present in a weight ratio ranging from 5:1 to 1:9.

3. The mastic asphalt composition as claimed in claim 1 , wherein the additive (I) is a diacid of general formula HOOC—C w H 2w —COOH, wherein w is an integer varying from 4 to 22.

4. The mastic asphalt composition as claimed in claim 3 , wherein the additive (I) is sebacic acid.

5. The mastic asphalt composition as claimed in claim 1 , 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 claim 1 , which comprises from 0.1% to 5% by weight of the additive (II) relative to the total weight of the binder composition.

7. The mastic asphalt composition as claimed in claim 1 , wherein the additive (II) is chosen from those of formula (IIA):
R′—CONH—(X) m —NHCO—R″  (IIA)

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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms;
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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms;
m is an integer having a value of 0 or 1.

8. The mastic asphalt composition as claimed in claim 1 , wherein the additive (II) is chosen from those of formula (IIB):
R′—CONH—R″  (IIB)

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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms.

9. The mastic asphalt composition as claimed in claim 1 , wherein the compound of general formula (II) is chosen from:
hydrazides;
diamides;
monoamides.

10. The mastic asphalt composition as claimed in claim 9 , wherein the compound of general formula (II) is chosen from hydrazides selected from the group consisting of: C 5 H 11 —CONH—NHCO—O 5 H 11 , C 9 H 19 —CONH—NHCO—C 9 H 19 , C 11 H 23 —CONH—NHCO—C 11 H 23 , C 17 H 35 —CONH—NHCO—C 17 H 35 , or C 21 H 43 —CONH—NHCO—C 21 H 43 .

11. The mastic asphalt composition as claimed in claim 9 , wherein the compound of general formula (II) is chosen from diamides selected from the group consisting of: N,N′-ethylenedi(laurylamide) of formula C 11 H 23 —CONH—CH 2 —CH 2 —NHCO—C 11 H 23 , N,N′-ethylenedi(myristylamide) of formula C 13 H 27 —CONH—CH 2 —CH 2 —NHCO—C 13 H 27 , N,N′-ethylenedi(palmitamide) of formula C 15 H 31 —CONH—CH 2 —CH 2 —NHCO—C 15 H 31 , N,N′-ethylenedi(stearamide) of formula C 17 H 35 —CONH—CH 2 —CH 2 —NHCO—C 17 H 35 .

12. The mastic asphalt composition as claimed in claim 11 , wherein the compound of general formula (II) is N,N′-ethylenedi(stearamide) of formula C 17 H 35 —CONH—CH 2 —CH 2 —NHCO—C 17 H 35 .

13. The mastic asphalt composition as claimed in claim 9 , wherein the compound of general formula (II) is chosen from monoamides selected from the group consisting of: laurylamide of formula C 11 H 23 —CONH 2 , myristylamide of formula C 13 H 27 —CONH 2 , palmitamide of formula C 15 H 31 —CONH 2 , stearamide of formula C 17 H 35 —CONH 2 .

14. The mastic asphalt composition as claimed in claim 1 , which comprises:
from 6% to 9% of the composition (i),
from 20% to 30% of fines,
from 30% to 45% of sand,
from 15% to 30% of stone chippings,
the percentages being expressed by weight relative to the total weight of the mastic asphalt composition.

15. A process for manufacturing a mastic asphalt composition as claimed in claim 1 , which comprises the use of a binder 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) 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, C 5 -C 24 hydrocarbon-based rings and/or C 4 -C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms, 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, C 5 -C 24 hydrocarbon-based rings and/or C 4 —C 24 hydrocarbon-based heterocycles comprising one or more heteroatoms;
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.

16. A process for manufacturing a mastic asphalt composition as claimed in claim 15 , which comprises at least the steps of:
heating the aggregates to a temperature ranging from 100° C. to 180° C.,
mixing the aggregates with the binder composition,
kneading the mixture,
obtaining a mastic asphalt composition.

Assignees

• Total Marketing Services

Inventors

• Hung Yvong
• Vincent Régis

Classifications

• C04B2111/0075

  for road construction · CPC title

• C04B14/06

  Quartz; Sand · CPC title

• E01C7/22

  Binder incorporated in hot state, e.g. heated bitumen · CPC title

• C04B26/26 Primary

  Bituminous materials, e.g. tar, pitch {(C08L95/00 takes precedence)} · CPC title

• E01C19/46

  for preparing and placing the materials {, e.g. slurry seals}({E01C19/002, } E01C19/45, {E01C21/00, E01C23/065} take precedence) · CPC title