EP2556193A1 - Enrobe hydrocarbone a hautes performances pour chaussee et chaussee de roulement - Google Patents
Enrobe hydrocarbone a hautes performances pour chaussee et chaussee de roulementInfo
- Publication number
- EP2556193A1 EP2556193A1 EP11715585A EP11715585A EP2556193A1 EP 2556193 A1 EP2556193 A1 EP 2556193A1 EP 11715585 A EP11715585 A EP 11715585A EP 11715585 A EP11715585 A EP 11715585A EP 2556193 A1 EP2556193 A1 EP 2556193A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydrocarbon
- granular
- fraction
- aggregates
- granular fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/182—Aggregate or filler materials, except those according to E01C7/26
Definitions
- the present invention relates to materials for the construction of road pavements or industrial platforms, and relates in particular to the hydrocarbon mixes used to manufacture such pavements and also relates to pavements obtained with these hydrocarbon mixes.
- the subject of the invention is a hydrocarbon-based coating intended in particular for the manufacture of the base layers of roadways or industrial platforms, or else layers interposed between the ballast and the railways support platform.
- This base layer must combine, on the one hand, very good mechanical characteristics and in particular an important modulus of rigidity to be able to withstand high loads and on the other hand a good resistance to fatigue to avoid the creation and propagation of cracks. and thus imparting good durability to said foundation layer; such a hydrocarbon mix is obtained from a set of aggregates and a binder, for example bituminous.
- the hydrocarbon mixes of the known type contain a significant amount of binder which leads to a high cost of obtaining.
- the time required to implement the base layer must be reduced as much as possible in order to reduce the time required for the repair of pavement to reduce the inconvenience caused by the road repair work.
- the subject of the invention is a hydrocarbon coating for a seat layer or a road or motorway pavement binding layer, or for industrial, port or airport platforms, or for a railway track support layer,
- said hydrocarbon coating is composed of a set of granules coated with at least one hydrocarbon binder
- the set of aggregates represents more than 95% by weight of the hydrocarbon mix after compacting, and at most 5% of hydrocarbon binder
- the aggregate assembly comprises a granular (skeleton) structure comprising a plurality of d / D granular fractions, each granular fraction being defined by a lower (d) and a higher (D) caliper,
- the set of aggregates comprises a first granular fraction dl / Dl, median having a first median dml, a second granular fraction d2 / D2 having a median second median dm2,
- the set of aggregates comprises a third granular fraction d3 / D3 between the first and second granular fractions, having for a caliper smaller than the upper caliber D1 of the first granular fraction, and having for higher caliber D3 the lower caliber d2 of the second granular fraction,
- the third granular fraction has a weight ratio based on the weight of the aggregates assembly, this ratio being named y P3 ',
- the hydrocarbon mix comprises, after compacting, a void ratio of less than 10%, or even less than 8%, or preferably less than 6%,
- hydrocarbon-based binder is a hydrocarbon-based binder modified by the addition of polymers and / or oil, and / or blown and / or foamed or emulsified
- modulus of rigidity of the hydrocarbon mix when compacted is greater than 9000 MPa, and the fatigue resistance of the hydrocarbon mix, when compacted, is greater than 90 micro-deformations.
- the ratio between the first median dml and the second median dm2 is less than 0.33, and even more preferably less than 0.25;
- the width of the third granular fraction D3-d3 is greater than 30% of D2-d1, and even more preferably greater than 40%;
- the ratio of the weight ratio (P3) of the third granular fraction relative to its relative width is less than 0.25, ie:
- the ratio of the weight ratio (P3) of the third granular fraction relative to its relative width is greater than 0.10, ie: P3
- the hydrocarbon binder has a needle penetration measured at 25 ° C. in the sense of the EN 1426 standard, greater than 30 tenths of a mm;
- the fatigue resistance of the hydrocarbon coating, once compacted, measured at a temperature of 10 ° C. and at a frequency of 25 Hz according to standard NF EN12697-24 in 2-point bending mode on trapezoidal specimens, is greater than 110 micro-deformations and preferably greater than 130 microdeformations;
- the modulus of rigidity of the hydrocarbon mix, once compacted, measured at a temperature of 15 ° C. and at a frequency of 10 Hz according to the standard NF EN12697-26, is greater than 11000 MPa, and preferably greater than 14000; MPa;
- the hydrocarbon binder is devoid of fibers
- the hydrocarbon coating further comprises a fourth d4 / D4 granular fraction (14) and a fifth d5 / D5 granular fraction (15) between the second and fourth granular fractions, having a caliber d5 of the second largest caliber D2 of the second one; granular fraction, and having D5 the lower size d4 of the fourth granular fraction, the width of the fifth granular fraction is greater than 20% of the higher size D4, the fifth granular fraction (15) has a relative weight (P5).
- the proportion by weight of the hydrocarbon binder (3) in the hydrocarbon coating (1) is at most equal to 4.5%.
- the invention relates to a roadway comprising at least one seat or binding layer comprising a hydrocarbon mix as defined above. According to another aspect, the invention relates to a process for manufacturing a hydrocarbon mix for a seat layer or a road or motorway pavement bonding layer, or for industrial, port or airport platforms, or for railway track support,
- said hydrocarbon mix being composed of a set of aggregates coated with at least one hydrocarbon binder, wherein the set of aggregates comprises a granular structure comprising a plurality of granular fractions d / D, each granular fraction being defined by a lower size (d ) and a higher caliber (D),
- said method comprising the following steps, in any order:
- said first and second granular fractions being separated by a third granular fraction d3 / D3 having for a caliper d3 the upper caliber D1 of the first granular fraction, and having for higher caliber D3 the lower caliber d2 of the second granular fraction, wherein the third granular fraction has a weight ratio (P3) based on the weight of the aggregates assembly, wherein the width of the third granular fraction D3-d3, defining a relative width (D3-d3) / D2 relative to the larger size (D2) of the second granular fraction, said relative width being greater than 20% of D2, wherein the ratio between the weight ratio (P3) of the third granular fraction relative to its relative width is less than 0.4, or : c) adding a new hydrocarbon-based binder until a total hydrocarbon-based binder with a weight of less than 5% by weight of the coating is obtained, the hydrocarbon-based binder being a hydrocarbon-based binder modified by inclusion of polymers and
- the first and second granular fractions comprise a proportion of recycled aggregates and the total hydrocarbon binder comprises a fresh hydrocarbon binder fraction and a hydrocarbon binder fraction derived from the recycled aggregates;
- the process also comprises the following steps: e) spreading the hydrocarbon coating over a surface, for example with at least one finisher,
- the said hydrocarbon-based coating is compacted, for example with at least one compactor,
- the hydrocarbon mix comprises a void fraction of less than 10%, or even less than 8%, or preferably less than 6%, and whereby the rigidity modulus of the hydrocarbon mix is greater than 9000 MPa at a temperature of 15 ° C and at a frequency of 10 Hz, and the fatigue resistance of the hydrocarbon mix is greater than 90 microdeformations at a temperature of 10 ° C and a frequency of 25 Hz.
- FIG. 1 is a general view of a roadway comprising a base layer based on an asphalt hydrocarbon according to the invention
- FIG. 2 is a detailed plan view of the hydrocarbon mix of FIG. 1,
- FIG. 3 is a detailed perspective view of the hydrocarbon mix of FIG. 1,
- FIG. 4 is a diagram illustrating the distribution of the dimensions of the granular skeleton of the hydrocarbon mix of FIG. 1, according to a first and a second embodiment of the invention
- FIG. 5 is a diagram illustrating the distribution of the dimensions of the granular skeleton according to a third embodiment.
- FIG. 1 shows a roadway 50 according to the invention, whose structure comprises from bottom to top:
- a surface layer 53 situated above the base layer 5 and having an upper surface adapted to receive the circulation and the rolling of the vehicles, said surface layer possibly being subdivided into a connecting layer 55 and the layer 54.
- the pavement structure 50 and more particularly the base layer 5, must support a plurality of stresses:
- thermo stresses caused by temperature variations and the effects of freezing, also called thermal stresses
- the roadway, and in particular the base layer 5 must have sufficient mechanical characteristics to prevent the formation of ruts and cracks and thus ensure satisfactory durability of the roadway.
- An objective of the seat layer is therefore to have a very high modulus of rigidity and a very good resistance to fatigue, these two characteristics tend to be antinomic.
- the Applicant has developed a particularly advantageous hydrocarbon-based coating 1 concerning stiffness and fatigue strength, while having a very attractive cost and also excellent recyclability, intended in particular to obtain the layers of seat 5, but which can however also be used for the tie layer 55 of the surface layer 53.
- This hydrocarbon mix 1 comprises:
- a hydrocarbon binder 3 preferably modified by the addition of polymers and / or oil, and / or blown and / or foamed or emulsified, which will be described later.
- the aggregates that make up the set of aggregates 2 are solid fragments made from new materials or recycled materials. New aggregates are either natural from gravel pits or quarries, or artificial from foundry slag for example.
- Recycled aggregates come from, for example, milling asphalt courses, crushing asphalt slabs, waste or asphalt slabs and surplus asphalt production.
- the proportion of aggregates recycled in aggregate assembly 2 may vary from 0% to 100% according to the invention depending on the availability of such recycling granules.
- recycling granules can be covered with hydrocarbon binder previously used in the previous implementation which has been milled for recycling.
- the aggregates respond for example, and without limitation to the European standards EN 13043, EN 12620, EN 13108-8.
- aggregate assembly 2 comprises a distribution of aggregates of different sizes, usually referred to as “granular structure” or “granular skeleton", aggregate assembly 2 comprising at least three granular fractions ( d / D) 11,12,13, each granular fraction being defined by a lower caliber (d) and an upper caliber (D).
- granular structure or “granular skeleton”
- aggregate assembly 2 comprising at least three granular fractions ( d / D) 11,12,13, each granular fraction being defined by a lower caliber (d) and an upper caliber (D).
- a first granular fraction dl / Dl (11), comprises small aggregates whose size is between dl and Dl, dl may or may not be equal to 0. If dl is not equal to 0, then another granular fraction 10 range 0 to dl is present and may contain the commonly known under the term filler f * and ultrafine.
- the first dl / Dl (11) granular fraction has a first median dml, defined as the value for which 50% of the weight of granules of this granular fraction is smaller than dml.
- This first granular fraction usually contains a large amount of sands, whose grains have dimensions less than 2 mm.
- 'upper granular fraction' comprises aggregates whose dimension is between d2 and D2 and has a second median dm2, defined as the value for which 50% of the weight of aggregates of this granular fraction are smaller than dm2.
- D2 serves as the upper limit of the aggregates sizes, the portion of aggregates exceeding the caliber D2 being very low in the sense of EN13043 and EN 933-1 standards.
- a third granular fraction d3 / D3 (13), said fraction missing or almost missing, comprises few aggregates, said aggregates having a dimension between d3 and D3.
- discontinuity induced in the granular skeleton by the third fraction called 'missing' can therefore be characterized by two concepts, separately or in combination:
- the ratio between the first median dml and the second median dm2 should be less than 0.33 and even more preferably less than 0.25.
- the relative width of the third granular fraction (D3-d3) / D2 should be greater than 20%, preferably greater than 30%, and even more preferably greater than 40%.
- the second granular fraction represents a proportion of 40% to 60% by weight of all aggregates 2
- the first granular fraction represents a proportion of 35% to 45% by weight of all aggregates 2, the rest being occupied by the ultrafine particles and fillers, and by the minute quantity which presents in the third granular fraction.
- the third granular fraction (missing fraction) represents a weight ratio (P3) relative to the weight of all the aggregates 2, this ratio (P3) being less than 15% of the weight of all aggregates 2.
- this weight ratio can be related to the relative width of the missing granular fraction by the following formula:
- the residual weight in the missing fraction is more advantageous and is such that:
- Equ.l or Equ.2 equations mentioned above leads to maximize the possibilities of mutual contact between the aggregates of the upper granular fraction, as illustrated on FIGS. 2 and 3.
- the aggregates 20 of the upper granular fraction 12 may be in contact with aggregates 20 of the same size, since the aggregates of the intermediate size (missing fraction) are not or only slightly present.
- the small granules 21, belonging to the first granular fraction 11 are housed in the gaps 4 between the coarse aggregates 20, without preventing the latter from coming into contact with each other.
- a hydrocarbon-based coating having a modulus of rigidity greater than 9000 MPa or even greater than 11000 MPa is obtained, and even more preferred greater than 14000 MPa.
- the modulus of rigidity measurements mentioned here are generally made at a temperature of 15 ° C. and at a frequency of 10 Hz.
- stiffness modulus reference may be made to standard NF EN12697-26.
- the stiffness modulus values can also be determined from AASHTO TP 62-03 at 70 ° F and 10Hz.
- the granular backbone described above can be obtained by successive and selective screening processes well known in the art and not described in detail here.
- Table 1 The table given in the Annex (Table 1) at the end of this description gives four examples of granular skeleton (named HPl there 'to' HP4 ') according to the first embodiment of the invention, compared to two witnesses coated (Fifth and sixth columns).
- Table 1 it can be seen that for the examples shown, the relative weight of the third granular fraction (passing between the sieves of 4 and 10) varies between 12% and 15%, compared with 26-30% of the control mixes, which is consistent with the relation defined by y Equ. the and y Equ. 3 'above.
- the hydrocarbon binder 3 comprises a component main, preferably a bitumen but it can also be a mixture of long hydrocarbons equivalent synthetic or derived from plant material.
- the binder may also be a mix of pitch and resin as described in the applications FR07 / 02927 and PCT / FR2008 / 000556 of the applicant.
- the hydrocarbon binder 3, also called “total hydrocarbon binder” can be composed of a new hydrocarbon binder fraction and a recycled hydrocarbon binder fraction, which covers the recycled aggregates.
- hard binders in particular hard bitumens, characterized by a needle penetration of less than 30 tenths of a mm in accordance with EN 1426 (or ASTM Method D5) under the standard test conditions, in particular with respect to 25 ° C / 77 ° F.
- EN 1426 or ASTM Method D5
- These hard bitumens were until then the reference solution to achieve pavements subjected to severe stresses and high traffic, with a high modulus of rigidity and high fatigue strength.
- the use of these hard binders in the prior art resulted in the following problems:
- Hard bitumens preferentially come from certain types of heavy oils and require special manufacturing; the oil companies have developed manufacturing 'recipes' which use sophisticated distillation units, in particular by playing on cutting points between bitumen bases, - the industrial availability of hard bitumens is increasingly limited, especially in peak summer period of road works,
- the new hydrocarbon binder is mixed with the granular skeleton (and thus the recycled hydrocarbon binder fraction if desired) under one of the following conditions:
- a hard binder is not used.
- the new hydrocarbon binder fraction used can be judiciously modified or treated, in order to improve its qualities for the manufacture of the hydrocarbon mix, by one of the following methods, in the sense, for example, of the standard on bitumen EN 12597:
- the hydrocarbon binder may be modified by the addition of chemical agents belonging for example to the families of natural rubbers, synthetic polymers, organometallic compounds, sulfur and sulphides; preferably, copolymers SB (styrene butadiene), SBS (styrene-butadiene-styrene), star-shaped SBS, SBR (styrene butadiene rubber), EPDM (ethylene propylene) are used.
- chemical agents belonging for example to the families of natural rubbers, synthetic polymers, organometallic compounds, sulfur and sulphides preferably, copolymers SB (styrene butadiene), SBS (styrene-butadiene-styrene), star-shaped SBS, SBR (styrene butadiene rubber), EPDM (ethylene propylene) are used.
- EVA polyethylene-vinyl or methyl acetate copolymers, copolymers of olefins and unsaturated carboxylic esters
- EBA polyethylene-butyl acrylate
- SEBS styrene copolymer, ethylene, butylene and styrene
- ABS acrylonitrile-butadiene-styrene
- the chemical agents mentioned above can come from recycled aggregates, and in this case it is not necessarily necessary to add such chemical agents because they are already present on the recycled aggregates incorporated into the skeleton. granular,
- the hydrocarbon binder can be 'oxidized' by hot blowing, in which process a blowing unit propels warm air over the crude binder which is conveyed opposite it, this binder being more commonly called a multigrade binder ';
- the hydrocarbon binder can be 'foamed' by injection under cold water pressure and / or cold air;
- the hydrocarbon binder may be emulsified by addition of an aqueous liquid, optionally supplemented with a surfactant;
- the hydrocarbon binder can be 'fluxed' by addition of oil.
- Table 6 presented in the appendix gives the main characteristics of the binders used in the illustrated examples of the invention.
- a certain amount of new hydrocarbon binder thus prepared is mixed on a manufacturing station with the granular skeleton defined above, to obtain, taking into account the binder fraction already present in the recycled aggregates, an amount of at most 5 , 25% of the weight of all the aggregates 2.
- a hydrocarbon coating is thus obtained containing at least 95% by weight of aggregates and at most 5% by weight of hydrocarbon binder 3, and even more preferably 4.5% by weight of hydrocarbon binder 3, as indicated in particular by the examples detailed in Table 1.
- the amount of hydrocarbon binder 3 can also be characterized by the notion of richness module K explained below.
- G percentage of large chippings (diameter> 11mm)
- g percentage of small chippings (size 6 / llmm)
- S percentage of coarse sand (caliber 0.3 / 6mm)
- s percentage of fine sand (0.08 / 0.3mm caliber)
- f percentage of filler (diameter ⁇ 0.08mm).
- K generally varies from 2.75 for mixes giving maximum resistance to deformation, to 3.5 for the most flexible mixes.
- the hydrocarbon coating 1 is firstly spread on its support (form layer or foundation layer or possibly basecoat), then compacting the hydrocarbon mix with roller or wheel rollers as is known in the art.
- the structure is obtained as illustrated in FIGS. 2 and 3, the void fraction being less than 10%, or even less than 8%, and preferably less than 6%.
- the standard NF EN12697-31 in particular with regard to the compaction ability with the 100 giratory gyratory shear press ('PCG') in the framework of the examples discussed here.
- the hydrocarbon binder 3 coats the entire surface of the large-gauge aggregates 20 (see FIG. The presence and the good distribution of the hydrocarbon binder 3 confers a good resistance to hydrocarbon coating fatigue thus obtained.
- the fatigue resistance of the hydrocarbon coating, once compacted is greater than 90 microdeformations, or even 110 micro-deformations, or even 130 micro-deformations, and this without resorting to the hydrocarbon binder at the same time. addition of fibers.
- the fatigue resistance measurements mentioned here are generally carried out at a temperature of 10 ° C. and at a frequency of 25 Hz. For methods of measuring fatigue strength, reference may be made to standard EN12697-24 for two-point bending test on trapezoidal specimens.
- the AASHTO T321 standard for 'four-point' bending tests on prismatic specimens is an alternative at 68 ° F and 10 Hz, but the fatigue resistance threshold values are then 250 microdeformations, or even 500 microdeformations, or even 750 microdeformations.
- the temperature of the hydrocarbon mix 3 according to the invention decreases faster than in the case of conventional asphalt with a higher binder content, all the more so since the conductivity of the bitumen (approximately 0.163 W / m / ° C) is lower than that of the aggregates (approximately 0.9 to 2.2 W / m / °) VS) .
- the base layer 5 (or possibly the tie layer 55) cools faster and is more likely to receive the wearing course 53. Therefore, the time required for the implementation of the roadway can be reduced and its accelerated return to service. This avoids the problems of cohesion and lift insufficient early age asphalt mixes of the prior art, especially those manufactured and implemented at 'hot', 'lukewarm' or 'saturated' temperatures.
- Table 2 indicates the performances obtained according to the type of binder used (see details of the binders in Table 6), according to the following quantified criteria:
- modulus of rigidity this one is evaluated according to the standard NF EN12697-26 with a temperature of 15 ° C and with a frequency of 10Hz, the values of the modulus of rigidity can also be determined starting from the standard AASHTO TP 62- 03 at 70 ° F and 10Hz; the results obtained vary between 10500 MPa and 18050 MPa, conforming to the threshold values of 9000 MPa, 11000 MPa and 14000 MPa claimed,
- the ratio between the first median dml and the second median dm2 is 2mm / 12mm, or 0.166.
- Table 3 given in the Appendix (Table 3) at the end of the present description gives an example of a granular skeleton ( y HP5 ') according to the second embodiment of the invention, compared with a control mix (second column). .
- the granular skeleton is defined by the presence of two missing fractions.
- the granular skeleton further comprises:
- Said fifth granular fraction constitutes a second granular discontinuity, which has in the examples illustrated 10 to 12% of the total weight of the mix.
- the width of said fifth granular fraction is greater than 20% of the upper size D4 (here 20%)
- the fifth granular fraction (15) has a relative weight (P5) of the weight of the set of aggregates (2) such as:
- Table 4 given in the Appendix at the end of the present description gives an example of two granular skeletons (named y HP6 'and y HP7') according to the third embodiment of the invention, compared to a control mix (third column). .
- the third granular fraction (first fraction missing) represents in both examples HP6 and HP7 illustrated 8% of the total weight of the bituminous mix, and consequently
- composition of the hydrocarbon mix is thus optimal for the manufacture and implementation of the base layer.
- remarkable performance is achieved both in terms of the durability of the pavement and its rigidity.
- the invention is not limited to a particular geological nature of aggregates.
- the aggregates are predominantly diorite, in the second embodiment, the aggregates are dominated by basalt and in the third embodiment, the aggregates are predominantly hard limestone.
- Binder information ' ⁇ ', 'BP' is in Table 6.
- Table 5 Performance of Examples of High Performance Mixtures According to the Third Embodiment of the Invention
- Binder information ' ⁇ ', ' ⁇ ', BO ', BE' are in Table 6.
- this penetrability characterizes the bitumen before treatment.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1052595A FR2958302B1 (fr) | 2010-04-06 | 2010-04-06 | Enrobe hydrocarbone a hautes performances pour chaussee et chaussee de roulement |
| PCT/FR2011/050585 WO2011124799A1 (fr) | 2010-04-06 | 2011-03-22 | Enrobe hydrocarbone a hautes performances pour chaussee et chaussee de roulement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2556193A1 true EP2556193A1 (fr) | 2013-02-13 |
| EP2556193B1 EP2556193B1 (fr) | 2014-10-22 |
Family
ID=43355547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11715585.3A Active EP2556193B1 (fr) | 2010-04-06 | 2011-03-22 | Enrobe hydrocarbone a hautes performances pour chaussee et chaussee de roulement |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8915995B2 (fr) |
| EP (1) | EP2556193B1 (fr) |
| AU (1) | AU2011236730B2 (fr) |
| ES (1) | ES2528116T3 (fr) |
| FR (1) | FR2958302B1 (fr) |
| NZ (1) | NZ602804A (fr) |
| WO (1) | WO2011124799A1 (fr) |
| ZA (1) | ZA201207408B (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2998896B1 (fr) * | 2012-12-05 | 2015-01-16 | Eiffage Travaux Publics | Composition bitumeuse sous forme de granules et son procede de preparation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR702927A (fr) | 1930-09-01 | 1931-04-21 | Bekk & Kaulen Chem Fab Gmbh | Frocédé pour la production photochimique et le traitement de modèles à copier pour la typographie |
| FR2643094B1 (fr) * | 1989-02-10 | 1991-06-07 | Beugnet Sa | Enrobe a base de granulat de gros calibre et de liant hydrocarbone pour la construction des assises de chaussees, ainsi que chaussee poreuse notamment chaussee drainante et anti-bruit obtenue a partir d'un tel enrobe |
| US5290833A (en) * | 1992-07-01 | 1994-03-01 | Carsonite International Corporation | Aggregate of asphalt and filler |
| FR2738008B1 (fr) * | 1995-08-25 | 1997-11-07 | Total Raffinage Distribution | Utilisation d'un liant bitumineux tres dur dans la preparation d'un enrobe bitumineux, destine notamment aux assises de chaussees |
-
2010
- 2010-04-06 FR FR1052595A patent/FR2958302B1/fr active Active
-
2011
- 2011-03-22 US US13/638,207 patent/US8915995B2/en active Active
- 2011-03-22 ES ES11715585.3T patent/ES2528116T3/es active Active
- 2011-03-22 WO PCT/FR2011/050585 patent/WO2011124799A1/fr not_active Ceased
- 2011-03-22 EP EP11715585.3A patent/EP2556193B1/fr active Active
- 2011-03-22 NZ NZ602804A patent/NZ602804A/xx unknown
- 2011-03-22 AU AU2011236730A patent/AU2011236730B2/en active Active
-
2012
- 2012-10-03 ZA ZA2012/07408A patent/ZA201207408B/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011124799A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2011236730B2 (en) | 2016-11-24 |
| FR2958302B1 (fr) | 2012-04-20 |
| US20130022737A1 (en) | 2013-01-24 |
| EP2556193B1 (fr) | 2014-10-22 |
| NZ602804A (en) | 2013-10-25 |
| WO2011124799A1 (fr) | 2011-10-13 |
| US8915995B2 (en) | 2014-12-23 |
| ES2528116T3 (es) | 2015-02-04 |
| ZA201207408B (en) | 2013-11-27 |
| AU2011236730A1 (en) | 2012-10-25 |
| FR2958302A1 (fr) | 2011-10-07 |
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