EP0481067A1 - Road form layer. - Google Patents
Road form layer.Info
- Publication number
- EP0481067A1 EP0481067A1 EP91910124A EP91910124A EP0481067A1 EP 0481067 A1 EP0481067 A1 EP 0481067A1 EP 91910124 A EP91910124 A EP 91910124A EP 91910124 A EP91910124 A EP 91910124A EP 0481067 A1 EP0481067 A1 EP 0481067A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sand
- form layer
- layer according
- fibers
- granularity
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- 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
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
Definitions
- the present invention relates to a method for producing pavement form layers.
- the first phase of the construction of a pavement corresponds to earthworks, carried out using special machines which consist of stripping certain parts in relief and recovering spoil which is used to fill the holes (embankments). This gives a base surface often called “leveling ground” relatively flat and made of coarse materials.
- This surface in addition to its coarse character, often has the drawback of not having sufficient lift to allow the circulation of the construction machinery necessary for the subsequent construction of the road layers.
- the form layer This responds to a wide variety of purposes: adjustment, frost protection, site traffic, protection of the basement against inclement weather, anti-contamination and homogenization of the bearing capacity of the road, etc.
- the characteristics (choice of materials, thickness) of this form layer depend essentially on the nature of the soil in place or the leveling ground, but also on other parameters such as the traffic that can be expected on the site, the time interval between the implementation of the subgrade and the implementation of the pavement, or the climatic conditions of the period of the year during which the site takes place.
- this form layer can be manufactured from a supply of local materials or brought to the site which may or may not undergo a particular treatment, for example using hydraulic binders; these materials can be constituted by natural aggregates or by industrial by-products or by synthetic materials. It also happens that the form layer is simply constituted by the upper part of the leveling ground previously treated over a given height with various materials such as lime, cement ...
- the object of the present invention is to remedy these drawbacks by proposing a form layer essentially containing the aforementioned type of sand, but having satisfactory characteristics, in particular from the point of view of lift, and which can be manufactured at low cost without causing of particular nuisance for the surrounding network.
- the length of the synthetic fibers used in accordance with the invention can vary from a few millimeters to several tens of centimeters depending on the granularity of the sand. These fibers may, in accordance with the invention, have very varied origins.
- transformed natural polymers viscose, acetate, etc.
- synthetic polymers polymers
- mineral fibers glass, carbon, etc.
- metallic fibers glass, carbon, etc.
- the material corresponding to FIG. 1 intrinsically has an index bearing immediate IPI (measured in accordance with the specifications of the Central Laboratory of Bridges and Roads) equal to 22. If one adds to this material 1 per thousand by weight polyacrylonitrile fibers with a diameter equal to 38 microns, we manage to raise
- This corrective sand can in particular be constituted by a crushing sand rich in fines and in coarse elements of particle size 0/4, the particle size curve of which is shown in FIG. 2.
- PROCTOR the operating mode of which was developed by the Central Laboratory of Bridges and Roads. This test is based on the fact that, when samples of the same soil are compacted identically to different water contents, it is found that the density
- REPLACEMENT SHEET apparent dry soil (dry density) varies and goes through a maximum which is obtained for a well determined water content called optimal water content.
- the purpose of the PROCTOR test is to determine, for a standardized compaction of given intensity, the optimal water content and the maximum dry density.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9005564A FR2661699B1 (en) | 1990-05-03 | 1990-05-03 | PROCESS FOR THE PRODUCTION OF LAYERED LAYER LAYERS. |
FR9005564 | 1990-05-03 | ||
PCT/FR1991/000359 WO1991017311A1 (en) | 1990-05-03 | 1991-04-30 | Method for making road form layers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0481067A1 true EP0481067A1 (en) | 1992-04-22 |
EP0481067B1 EP0481067B1 (en) | 1995-01-11 |
Family
ID=9396279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91910124A Expired - Lifetime EP0481067B1 (en) | 1990-05-03 | 1991-04-30 | Road form layer |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0481067B1 (en) |
AT (1) | ATE117033T1 (en) |
DE (1) | DE69106655D1 (en) |
ES (1) | ES2069891T3 (en) |
FR (1) | FR2661699B1 (en) |
WO (1) | WO1991017311A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2706921A1 (en) * | 1993-06-22 | 1994-12-30 | Orgel | Granular material for road subgrade improvement layers and implementation method |
FR2705977B3 (en) * | 1993-06-02 | 1995-07-21 | Orgel Sa | Granular material for soil reinforcement and its production process. |
FR2705978B1 (en) * | 1993-06-02 | 1997-05-23 | Orgel Sa | Powdery material for pavement form layers and process for its preparation. |
FR2707093B1 (en) * | 1993-06-30 | 1995-09-29 | Genser Franck | Artificial surface in particular suitable for making horse tracks and method for obtaining such a surface. |
FR2710633B1 (en) * | 1993-09-27 | 1996-05-03 | Bocahut Ets | Composition intended for the production of constituent layers of roadways. |
FR2724952B1 (en) * | 1994-09-27 | 1996-12-20 | Orgel | PROCESS FOR REINFORCING SOILS, GROUND LAYERS OR PAVEMENTS BY WIRE OF GLASS |
FR2727698B1 (en) * | 1994-12-02 | 1997-01-10 | Orgel | PROCESS FOR PREPARING REINFORCED FLOORS WITH FIBROUS ADDITIVES |
FR2729686A1 (en) * | 1995-01-19 | 1996-07-26 | Orgel | Ground reinforcement using fibrous materials |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6806970A (en) * | 1968-05-17 | 1969-06-25 | ||
MA18781A1 (en) * | 1979-03-23 | 1980-10-01 | France Etat Ponts Chaussees | CONSTRUCTION MATERIAL, ITS APPLICATION FOR FILLING, COATING OR FOUNDATION MASS ON FURNISHED FLOOR, AND METHOD AND INSTALLATION FOR MANUFACTURING SUCH MATERIAL |
NL8303018A (en) * | 1983-08-30 | 1985-03-18 | Heijmans Wegenbouwmij | METHOD FOR APPLYING A SUBSTRUCTURE STRUCTURE FOR AN ARTIFICIAL GRASS FIELD AND ARTIFICIAL GRASS FIELD APPLIED TO SUCH SUBSTRUCTURE CONSTRUCTION. |
US4790691A (en) * | 1986-10-03 | 1988-12-13 | Freed W Wayne | Fiber reinforced soil and method |
-
1990
- 1990-05-03 FR FR9005564A patent/FR2661699B1/en not_active Expired - Fee Related
-
1991
- 1991-04-30 WO PCT/FR1991/000359 patent/WO1991017311A1/en active IP Right Grant
- 1991-04-30 DE DE69106655T patent/DE69106655D1/en not_active Expired - Lifetime
- 1991-04-30 ES ES91910124T patent/ES2069891T3/en not_active Expired - Lifetime
- 1991-04-30 AT AT91910124T patent/ATE117033T1/en not_active IP Right Cessation
- 1991-04-30 EP EP91910124A patent/EP0481067B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9117311A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE117033T1 (en) | 1995-01-15 |
DE69106655D1 (en) | 1995-02-23 |
ES2069891T3 (en) | 1995-05-16 |
WO1991017311A1 (en) | 1991-11-14 |
EP0481067B1 (en) | 1995-01-11 |
FR2661699B1 (en) | 1992-08-28 |
FR2661699A1 (en) | 1991-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1267275A (en) | Reinforced soil and method | |
CA2201095C (en) | New pavement system of rigid material | |
Khan et al. | Effects of waste glass powder on the geotechnical properties of loose subsoils | |
EP0481067B1 (en) | Road form layer | |
CN106894311A (en) | A kind of sponge-type urban water-through bituminous paving | |
EP1794375B1 (en) | Device and method for a tower reinforcing foundation | |
CN205653671U (en) | Bituminous paving permeates water in sponge type city | |
EP0017548B1 (en) | Construction material, its application as a filler,a coating or a foundation mass to loose soil; process and apparatus for manufacturing this material | |
EP0603369B1 (en) | Advanced rising crack prevention system between the structural and wearing courses of a roadway, and method for producing same | |
CN105648865A (en) | Paving method for tropical zone road surface | |
WO2001054471A2 (en) | Compacted rolled fibre-reinforced concrete composition and method for producing a pavement based on same | |
CN212641086U (en) | Road surface structure based on asphalt concrete upper surface layer construction in rainy and humid areas | |
FR2653360A1 (en) | Granulate for public works and method for manufacturing it | |
EP1069241B1 (en) | Method for producing a surfacing and groundcovering | |
CN109824301B (en) | Water-based polymer stabilized macadam material for roads, preparation and construction method | |
KR20110028801A (en) | Planting consturuction using the straight bamboo | |
EP0158560B1 (en) | Method for renovating roadways | |
Anand et al. | A Comparative Study B/W Black Cotton Soil and Alluvial Soil for Economical Pavement Design by Lime & Fly-Ash Stabilization | |
CN220377028U (en) | Curb structure that architectural design used | |
FR2688808A1 (en) | Draining road surface layer, more especially intended for covering emergency braking lanes of motorways or high-speed roadways, as well as method for obtaining such a draining road surface layer | |
FR3143637A1 (en) | PERMEABLE COATINGS OBTAINED BY FILLING THE CONNECTING VOIDS OF AN OPEN COATING WITH A PERMEABLE MATERIAL MADE OF SAND | |
FR2710633A1 (en) | Composition intended for the production of constituent courses of roadways | |
FR2669950A1 (en) | METHOD FOR TRACING LINE MARKING LINES, IN PARTICULAR SPORT GROUNDS, COMPOSITION OF MATERIALS ADAPTED TO ITS IMPLEMENTATION AND SPORTS FIELD THUS OBTAINED. | |
JP2008223361A (en) | Banking permeable layer | |
FR2729161A1 (en) | Cold treatment process for material for earthworks and embankments along roads and railway lines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19920330 |
|
17Q | First examination report despatched |
Effective date: 19930111 |
|
18D | Application deemed to be withdrawn |
Effective date: 19940208 |
|
18RA | Request filed for re-establishment of rights before grant |
Effective date: 19940816 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
18RR | Decision to grant the request for re-establishment of rights before grant |
Free format text: 941123 ANGENOMMEN |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES GB GR IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19950111 Ref country code: GB Effective date: 19950111 Ref country code: AT Effective date: 19950111 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950111 Ref country code: DK Effective date: 19950111 Ref country code: NL Effective date: 19950111 |
|
REF | Corresponds to: |
Ref document number: 117033 Country of ref document: AT Date of ref document: 19950115 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69106655 Country of ref document: DE Date of ref document: 19950223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19950411 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950412 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19950430 Ref country code: BE Effective date: 19950430 Ref country code: LI Effective date: 19950430 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19950430 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2069891 Country of ref document: ES Kind code of ref document: T3 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19950111 |
|
BERE | Be: lapsed |
Owner name: SCETAUROUTE Effective date: 19950430 Owner name: BEUGNET Effective date: 19950430 Owner name: AFFRATEX Effective date: 19950430 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19970428 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 19980504 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20000601 |