EP0481067A1 - Tragschicht im strassenbau. - Google Patents

Tragschicht im strassenbau.

Info

Publication number: EP0481067A1
Authority: EP; European Patent Office
Prior art keywords: sand; form layer; layer according; fibers; granularity
Prior art date: 1990-05-03
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

Application number

EP91910124A

Other languages

English (en)

French (fr)

Other versions

EP0481067B1 (de

Inventor

Jean-Yves Buffard

Philippe Chapuis

Alain Rue Des Alouette Sainton

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BEUGNET DITE Ste

SCETAU-ROUTE

AFFRATEX

BEUGNET SA

SCETAU ROUTE

Original Assignee

BEUGNET DITE Ste

SCETAU-ROUTE

AFFRATEX

BEUGNET SA

SCETAU ROUTE

Priority date (The priority date 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 date listed.)

1990-05-03

Filing date

1991-04-30

Publication date

1992-04-22

1991-04-30 Application filed by BEUGNET DITE Ste, SCETAU-ROUTE, AFFRATEX, BEUGNET SA, SCETAU ROUTE filed Critical BEUGNET DITE Ste

1992-04-22 Publication of EP0481067A1 publication Critical patent/EP0481067A1/de

1995-01-11 Application granted granted Critical

1995-01-11 Publication of EP0481067B1 publication Critical patent/EP0481067B1/de

2011-04-30 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000004576 sand Substances 0.000 claims abstract description 28
229920002994 synthetic fiber Polymers 0.000 claims abstract description 12
239000000835 fiber Substances 0.000 claims description 11
239000012209 synthetic fiber Substances 0.000 claims description 10
235000019738 Limestone Nutrition 0.000 claims description 3
239000006028 limestone Substances 0.000 claims description 3
229920002239 polyacrylonitrile Polymers 0.000 claims description 3
229920002972 Acrylic fiber Polymers 0.000 claims description 2
239000002245 particle Substances 0.000 abstract description 9
239000000463 material Substances 0.000 description 18
238000007792 addition Methods 0.000 description 9
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
238000004519 manufacturing process Methods 0.000 description 7
239000002689 soil Substances 0.000 description 7
238000010276 construction Methods 0.000 description 6
239000011230 binding agent Substances 0.000 description 3
239000000203 mixture Substances 0.000 description 3
241000196324 Embryophyta Species 0.000 description 2
-1 polyethylene Polymers 0.000 description 2
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
229920000914 Metallic fiber Polymers 0.000 description 1
206010033799 Paralysis Diseases 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004743 Polypropylene Substances 0.000 description 1
229920000297 Rayon Polymers 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
239000004568 cement Substances 0.000 description 1
238000005056 compaction Methods 0.000 description 1
238000011109 contamination Methods 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000945 filler Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000008240 homogeneous mixture Substances 0.000 description 1
238000000265 homogenisation Methods 0.000 description 1
239000004571 lime Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
239000002557 mineral fiber Substances 0.000 description 1
238000002156 mixing Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229920005615 natural polymer Polymers 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
229920001155 polypropylene Polymers 0.000 description 1
239000011435 rock Substances 0.000 description 1
239000013589 supplement Substances 0.000 description 1
229920001059 synthetic polymer Polymers 0.000 description 1

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)
Civil Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Paleontology (AREA)
Soil Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Mining & Mineral Resources (AREA)
Environmental & Geological Engineering (AREA)
Agronomy & Crop Science (AREA)
General Engineering & Computer Science (AREA)
Architecture (AREA)
Road Paving Structures (AREA)
Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Laminated Bodies (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)

EP91910124A 1990-05-03 1991-04-30 Tragschicht im strassenbau Expired - Lifetime EP0481067B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
FR9005564		1990-05-03
FR9005564A FR2661699B1 (fr)	1990-05-03	1990-05-03	Procede pour la realisation de couches de forme de chaussee.
PCT/FR1991/000359 WO1991017311A1 (fr)	1990-05-03	1991-04-30	Procede pour la realisation de couches de forme de chaussee

Publications (2)

Publication Number	Publication Date
EP0481067A1 true EP0481067A1 (de)	1992-04-22
EP0481067B1 EP0481067B1 (de)	1995-01-11

Family

ID=9396279

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91910124A Expired - Lifetime EP0481067B1 (de)	1990-05-03	1991-04-30	Tragschicht im strassenbau

Country Status (6)

Country	Link
EP (1)	EP0481067B1 (de)
AT (1)	ATE117033T1 (de)
DE (1)	DE69106655D1 (de)
ES (1)	ES2069891T3 (de)
FR (1)	FR2661699B1 (de)
WO (1)	WO1991017311A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2705977B3 (fr) *	1993-06-02	1995-07-21	Orgel Sa	Matériau granuleux pour renforcement de sols et son procédé d'élaboration.
FR2705978B1 (fr) *	1993-06-02	1997-05-23	Orgel Sa	Matériau pulvérulent pour couches de forme de chaussées et procédé d'élaboration.
FR2706921A1 (en) *	1993-06-22	1994-12-30	Orgel	Granular material for road subgrade improvement layers and implementation method
FR2707093B1 (fr) *	1993-06-30	1995-09-29	Genser Franck	Surface artificielle notamment adaptée à la réalisation de pistes hippiques ainsi que procédé d'obtention d'une telle surface.
FR2710633B1 (fr) *	1993-09-27	1996-05-03	Bocahut Ets	Composition destinée à la réalisation de couches constitutives de chaussées.
FR2724952B1 (fr) *	1994-09-27	1996-12-20	Orgel	Procede de renforcement de sols, de couches de terrain ou de chaussees par des fils de verre
FR2727698B1 (fr)	1994-12-02	1997-01-10	Orgel	Procede d'elaboration de sols renforces par des additifs fibreux
FR2729686A1 (fr) *	1995-01-19	1996-07-26	Orgel	Sol renforce par des elements fibreux
CN119824880A (zh) *	2025-03-19	2025-04-15	中交第一航务工程局有限公司	一种深厚超软地基快速加固施工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL6806970A (de) *	1968-05-17	1969-06-25
MA18781A1 (fr) *	1979-03-23	1980-10-01	France Etat Ponts Chaussees	Materiau de construction,son application pour remblai,revetement ou massif de fondation sur un sol meuble,et procede et installation de fabrication de ce materiau
NL8303018A (nl) *	1983-08-30	1985-03-18	Heijmans Wegenbouwmij	Werkwijze voor het aanbrengen van een onderbouwconstructie voor een kunstgrasveld en kunstgrasveld aangebracht op een dergelijke onderbouwconstructie.
US4790691A (en) *	1986-10-03	1988-12-13	Freed W Wayne	Fiber reinforced soil and method

1990
- 1990-05-03 FR FR9005564A patent/FR2661699B1/fr not_active Expired - Fee Related
1991
- 1991-04-30 WO PCT/FR1991/000359 patent/WO1991017311A1/fr not_active Ceased
- 1991-04-30 AT AT91910124T patent/ATE117033T1/de not_active IP Right Cessation
- 1991-04-30 DE DE69106655T patent/DE69106655D1/de not_active Expired - Lifetime
- 1991-04-30 EP EP91910124A patent/EP0481067B1/de not_active Expired - Lifetime
- 1991-04-30 ES ES91910124T patent/ES2069891T3/es not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9117311A1 *

Also Published As

Publication number	Publication date
FR2661699A1 (fr)	1991-11-08
WO1991017311A1 (fr)	1991-11-14
EP0481067B1 (de)	1995-01-11
DE69106655D1 (de)	1995-02-23
ES2069891T3 (es)	1995-05-16
ATE117033T1 (de)	1995-01-15
FR2661699B1 (fr)	1992-08-28

Legal Events

Date	Code	Title	Description
1992-03-06	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
1992-04-22	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
1992-05-27	17P	Request for examination filed	Effective date: 19920330
1993-02-24	17Q	First examination report despatched	Effective date: 19930111
1994-08-03	18D	Application deemed to be withdrawn	Effective date: 19940208
1994-10-19	18RA	Request filed for re-establishment of rights before grant	Effective date: 19940816
1994-11-25	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-01-11	18RR	Decision to grant the request for re-establishment of rights before grant	Free format text: 941123 ANGENOMMEN
1995-01-11	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
1995-01-11	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
1995-01-11	REF	Corresponds to:	Ref document number: 117033 Country of ref document: AT Date of ref document: 19950115 Kind code of ref document: T
1995-02-23	REF	Corresponds to:	Ref document number: 69106655 Country of ref document: DE Date of ref document: 19950223
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1995-04-12	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19950412
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1995-05-16	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
1995-06-16	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1995-07-19	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
1995-10-31	BERE	Be: lapsed	Owner name: SCETAUROUTE Effective date: 19950430 Owner name: BEUGNET Effective date: 19950430 Owner name: AFFRATEX Effective date: 19950430
1995-11-11	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-11-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-12-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1996-01-03	26N	No opposition filed
1997-04-28	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
1998-05-04	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
2000-07-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20000601

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