EP0505010A1 - Procédé de renforcement d'une couche de revêtement de sol - Google Patents

Procédé de renforcement d'une couche de revêtement de sol Download PDF

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Publication number
EP0505010A1
EP0505010A1 EP92200790A EP92200790A EP0505010A1 EP 0505010 A1 EP0505010 A1 EP 0505010A1 EP 92200790 A EP92200790 A EP 92200790A EP 92200790 A EP92200790 A EP 92200790A EP 0505010 A1 EP0505010 A1 EP 0505010A1
Authority
EP
European Patent Office
Prior art keywords
layer
net
covering layer
reinforcement
binding
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
Application number
EP92200790A
Other languages
German (de)
English (en)
Other versions
EP0505010B1 (fr
Inventor
Germain Baert
Yves Vancraeynest
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.)
MOBILMAT NV
Bekaert NV SA
Original Assignee
MOBILMAT NV
Bekaert NV SA
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.)
Filing date
Publication date
Application filed by MOBILMAT NV, Bekaert NV SA filed Critical MOBILMAT NV
Publication of EP0505010A1 publication Critical patent/EP0505010A1/fr
Application granted granted Critical
Publication of EP0505010B1 publication Critical patent/EP0505010B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01C11/00—Details of pavings
    • E01C11/16—Reinforcements
    • E01C11/165—Reinforcements particularly for bituminous or rubber- or plastic-bound pavings
    • 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
    • E01C11/00—Details of pavings
    • E01C11/005—Methods or materials for repairing pavings
    • 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
    • E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14—Concrete paving
    • E01C7/145—Sliding coverings, underlayers or intermediate layers ; Isolating or separating intermediate layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions, by inlays

Definitions

  • the invention relates to a method for reinforcing a covering layer of ground by fixing at least one reinforcement net to a supporting surface or foundation of the layer to be reinforced or strengthened and by then applying a covering layer of sufficient thickness to the foundation so that the reinforcement net is completely imbedded in the layer.
  • the covering layer consists of a slightly porous pourable self-hardening mixture, such as bituminous concrete. After pouring, the layer is compressed by rollers.
  • a reinforcement net that is being utilized with success for implementing such a method is sold by N.V. BEKAERT S.A. under the name "MESH TRACK".
  • MESH TRACK is a mesh or netting braided from galvanized steel wire that is reinforced at regular distances with a three-wire strand. The hexagonal meshes of this net are formed by twisting the wires together, the three-wire strands being arranged at regular distances from one another in the twisted sections thus formed. Plastic mats or nets can also be utilized.
  • coils of reinforcement net are rolled out in the longitudinal direction on the ground foundation and fixed to it with nails in order to hold the reinforcement net in place during the application and rolling of the covering layer and to ensure a good bonding between foundation and asphalt.
  • Suitable pieces of reinforcing nets can also be cut from a net coil and successively deposited in a transverse orientation on the ground.
  • the binding layer should preferably adhere well to the foundation and the reinforcement net must be sufficiently enclosed in this layer.
  • the material of the binding layer will also adhere well to the net and will also enable a firm bonding with the upper layer of the covering which is to be poured.
  • a relatively dense (i.e. non porous) binding layer moreover, will protect the net even more and therefore increase the durability of the reinforcement.
  • the invention thus provides in principle a method for reinforcing a covering layer of ground in which the upper part of the covering consists of a pourable self-hardening mixture.
  • At least one reinforcement net is first placed on the supporting surface or foundation of the ground and then a slightly viscous pourable binding layer of a self-hardening material of sufficient thickness and density is applied so that the net is embedded or enclosed in the layer and isolated from the air. After at least partial hardening of this binding layer, a pourable self-hardening mixture is applied to form the upper part of the covering layer and the covering layer thus formed is compacted. Before applying the covering layer, the binding layer already present is in general not previously compressed or compacted.
  • the composition of the binding layer is selected such that it can fully spread out at temperatures lower than 80 degrees C (e.g. at 10 to 25 degrees), whereby irregularities and cracks in the foundation surface are effectively filled up.
  • the net is firmly enclosed and anchored in a dense layer, which in this way protects the net and resists water penetration and thus the possibility of being undermined or washed away.
  • the composition of the binding layer to be applied constitutes an important element of the invention.
  • the binding layer will by preference be a slightly viscous bituminous mortar that contains a powdered mineral filler, sharp sand and possibly natural sand and crushed rock.
  • the granule thicknesses in this mixture generally vary between zero and 7 mm.
  • the mortar to be formed is composed of 100 parts by weight of this mineral granular mass mixed with 10 to 18 parts by weight of a cationic bitumen emulsion and about 1 to 4 parts by weight of an emulsion destabilizer (dissociation accelerator, such as cement) which enables the gradual elimination of the water phase from the mixture to bring about its hardening.
  • an emulsion destabilizer such as cement
  • One to two parts of the accelerator is usually sufficient.
  • the freshly prepared bitumen emulsion generally contains about 60 % bitumen and 40 % water.
  • the weight of the binding layer is somewhere between 5 and 40 kg per m2 of foundation surface area, and preferably between 8 and 20 kg/m2.
  • the binding layer can comprise also less than 5 % wght of finely divided fibers of steel, polypropylene or other reinforcing fibers such as 8 % wght of Dramix® steel fibers or 1 % wght of Duomix® fibers (Duomix and Dramix are trade mark names of N.V. Bekaert S.A.).
  • At least a part of the sharp sand, as well as the crushed rock, may originate from limestone, porphyry or other minerals.
  • the mineral filler is in powder form.
  • the hardness of the bitumens utilized can be selected between, for example, 40 and 200, and preferably between 70 and 150.
  • the percentage weight of the filler powder (powder thickness smaller than 0.08 mm), together with the other particles with a granule size of less than 2 mm (i.e. that fall through a sieve with square mesh holes having a surface area of 4 mm2), will amount to at most 65 % of the total amount of mineral particles in the binding layer and, by preference, less than 50 %.
  • a residual bituminous binding agent in fact, forms between the mineral particles.
  • the binding layer is sufficiently hardened for the upper layer to be applied when the residual bituminous binding agent content is between 6 and 18 % by weight of the binding layer and, by preference, between 8 and 16 % by weight.
  • the invention also relates to the covering layer itself which is obtained according to the method and characterized, among other things, by particularities relating to the applicable reinforcement nets.
  • the largest transverse dimension of the meshes of the net should be at least one time the mean thickness of the largest solid pieces present in the upper part of the covering layer and, by preference, even more than two times this thickness.
  • the reinforcement net will contain steel wire. Certain types of braided steel wire mesh (e.g. with hexagonal meshes, such as "MESH TRACK”) are well suited.
  • One preferred embodiment of the covering layer 1 represented in figure 1 includes a reinforcement net 5 that consists of a braided steel wire netting with hexagonal mesh: "Mesh Track”.
  • the hexagonal meshes are created by intermittent mutual twisting together of neighbouring longitudinal wires, whereby reinforcement elements 7 in the form of strands are inserted in the twisted sections at regular distances from one another running in the transverse direction.
  • the longitudinal wires and the strands 7 are preferably made of steel wire and the wires are preferably galvanized.
  • the longitudinal wires can, for example, have a nominal diameter of 2.45 mm, while the wires of the three-wire stands 7 have a nominal diameter of 3 mm.
  • the meshes can, for example, have the following dimensions : 118 mm between the twisted sections in the longitudinal direction and 80 mm between the twisted sections in the transverse direction.
  • the strands 7 are inserted at a distance of 225 mm from one another. All the dimensions given above are given only as examples.
  • the reinforcement net 5 can also be equipped with longitudinal elements 8. These elements 8 can also be steel wire or strands of steel wire ; they can also be made of strip steel. Elements 7 and 8 can cross one another at a nearly perpendicular angle.
  • the reinforcement mesh 5 can also be made of plastic or of plastic-coated steel wires.
  • Plastic mesh with thickened crossing points for example the TENSAR or HATELITE types (trade mark names), are also suitable: the crossing points here are thus thicker than the connecting segments of the net between these crossing points.
  • a reinforcement net is first rolled out onto the support surface of the foundation 2 of ground, for example a road, onto which an upper layer 1 must be applied (see figure 1).
  • This foundation 2 can, for example, be an old existing road.
  • the mixture for a binding layer 6 of sufficient thickness is now applied over the net 5, so that the net is sufficiently enclosed in the layer 6.
  • the mesh pattern of the net 5 is preferably still to be recognized after the mixture of layer 6 is poured (and spread out).
  • the upper layer 3 for example of bituminous concrete, can be applied.
  • the application of the upper layer 3 proceeds without any problems. With an adjusted composition of the binding layer, it is perhaps possible even one hour after the application of the layer 6 to start with the application of the upper layer.
  • this binding layer 6 for fixing the reinforcement net 5
  • the cost for fixing the net 5 decreases markedly, which makes the use in the reinforcement of asphalt very attractive.
  • this reinforcement method makes it possible to keep the final thickness of the upper layer to be applied 1 to 2 cm lower than with a net fixation by means of hooks or clamps. At the same time, therefore, there is a saving on material.
  • the composition of the binding layer 6 will of course be adjusted in accordance with the nature of the foundation surface, of the net 5 to be imbedded and of the composition of the upper layer 3. Among other things, it can be advisable to put, for example, 0.1 to 0.2 kg/m2 of a bitumen emulsion on the foundation surface beforehand as an adhesive for the binding layer. If so desired, elastomers can be added to the bituminous mortar of layer 6 in order to increase its elasticity and shock absorption capacity. Corrosion inhibitors can also be mixed in for an increased protection of the wire mesh against corrosion.
  • the granulate mass consists of at least 50 % by weight of granules of thicknesses of between 2 and 7 mm (sometimes between 2 and 4 mm), approximately 10 % filler powder and the rest being mineral granules of thicknesses between 0.08 mm and 2 mm.
  • the viscous pourable or flowable mixture is spread out to a thickness of 5 to 7 mm. This means about 15 kg binding layer material per m2 of road surface area.
  • the net is thereby completely covered with and embedded in the layer 6, which is now left untouched for at least one hour so that the water will gradually be eliminated from the layer 6 and evaporate, resulting in a hardened layer 6 with a nearly dry surface.
  • the meshes of the net 5 can still be recognized through the binding material cover. This indicates that the mortar 6 is sufficiently fluid to penetrate through and around the wires of the "Mesh Track" net 5.
  • the surface of the layer 6 is thus slightly profiled in the ribbed pattern of the Mesh Track netting.
  • the invention is also applicable for the reinforcement of other ground or areas of land such as, for example, industrial floors, parking lots, wharfs, airfield pavements, etc., where on a solid foundation a binding layer 6 is applied with a composition as described above (and with a thickness, for example, of 2 to 3 cm) and reinforced with a net 5.
  • a cement concrete layer for example, can be poured and spread out to a thickness of 8 to 15 cm, possibly with the insertion of a suitable layer of glue.
  • This cement concrete layer can, for example, include fibers or pieces of steel wire (Dramix trade mark) as reinforcement (so-called fiber concrete).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Piles And Underground Anchors (AREA)
  • Soil Working Implements (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Floor Finish (AREA)
EP92200790A 1991-03-22 1992-03-19 Procédé de renforcement d'une couche de revêtement de sol Expired - Lifetime EP0505010B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100268 1991-03-22
BE9100268A BE1004705A3 (nl) 1991-03-22 1991-03-22 Werkwijze voor het wapenen van een bovenlaag van een terrein.

Publications (2)

Publication Number Publication Date
EP0505010A1 true EP0505010A1 (fr) 1992-09-23
EP0505010B1 EP0505010B1 (fr) 1997-09-10

Family

ID=3885404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92200790A Expired - Lifetime EP0505010B1 (fr) 1991-03-22 1992-03-19 Procédé de renforcement d'une couche de revêtement de sol

Country Status (7)

Country Link
EP (1) EP0505010B1 (fr)
AT (1) ATE158041T1 (fr)
BE (1) BE1004705A3 (fr)
DE (1) DE69222073T2 (fr)
DK (1) DK0505010T3 (fr)
ES (1) ES2109306T3 (fr)
GR (1) GR3025165T3 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709524A1 (fr) * 1994-10-28 1996-05-01 Tonen Corporation Procédé pour le renforcement de dalles en béton
WO1998035100A1 (fr) 1997-02-07 1998-08-13 N.V. Bekaert S.A. Mat de renfort pour asphalte de renfort
WO1999053143A1 (fr) * 1998-04-15 1999-10-21 6D Solutions Structure rigide de renforcement et de solidarisation verticale de structures de roulement comme autoroutes ou ponts presentant des joints ou fissures
RU2144106C1 (ru) * 1999-01-26 2000-01-10 Воронежская государственная архитектурно-строительная академия Способ устройства дорожного покрытия
US6017698A (en) * 1995-03-31 2000-01-25 Roche Diagnostics Gmbh Method of binding a biological material
WO2002046532A1 (fr) * 2000-12-05 2002-06-13 Josef Ermer Dispositif servant a constituer et a consolider des terrains, notamment des routes
EP1609910A1 (fr) * 2004-06-24 2005-12-28 Global Engineering and Trade S.r.L. Revetement avec effet photocatalytique
WO2006000565A1 (fr) * 2004-06-23 2006-01-05 Italcementi S.P.A. Revetement routier photocatalytique tres durable reduisant les agents polluants urbains
KR100726452B1 (ko) 2006-07-25 2007-06-11 정혜원 육교 및 교량 탄성바닥재 포설방법
WO2010006617A1 (fr) 2008-07-18 2010-01-21 Contec International Gmbh Surface de port de charge
JP2017089259A (ja) * 2015-11-11 2017-05-25 スリーエム イノベイティブ プロパティズ カンパニー 道路の補修又は補強用シート
KR101995931B1 (ko) * 2019-02-21 2019-07-03 모든철망 주식회사 보강메시를 이용한 도로포장 시공방법
CN111979868A (zh) * 2020-08-24 2020-11-24 陕西建工机械施工集团有限公司 一种道面面层双层钢筋网片混凝土施工方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054235A1 (de) * 2005-11-14 2007-05-24 FITR-Gesellschaft für Innovation im Tief- und Rohrleitungsbau Weimar mbH Verfahren und Anordnung zur Ausbildung fugenloser Verkehrsflächen aus Beton oder ähnlichen, Bindemittel enthaltenden aushärtenden Mineralstoffgemischen
CN105239484A (zh) * 2015-09-24 2016-01-13 沈阳建筑大学 一种适用于重载交通的路面结构
DE202019101140U1 (de) * 2019-02-28 2020-05-29 Sk Wiegrink Beteiligungs Gmbh Fugenfüllungsprofil
CN110106763A (zh) * 2019-05-14 2019-08-09 广州同欣康体设备有限公司 预制型运动面层的铺装方法
CN113089470A (zh) * 2021-04-14 2021-07-09 四川省交通建设集团股份有限公司 一种桥面高韧超薄磨耗层及其施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1707939A (en) * 1928-08-06 1929-04-02 Leon R Mackenzie Wear course for pavements
US1862011A (en) * 1928-01-03 1932-06-07 Robert B Gage Concrete pavement and its construction
FR2615520A1 (fr) * 1987-05-20 1988-11-25 Lefebvre Jean Ets Composition bitumineuse pour enrobes coules a froid, procede de realisation d'un tel enrobe et dispositif de dosage de fibres pour la mise en oeuvre du procede
EP0373041A1 (fr) * 1988-12-09 1990-06-13 Screg Routes Et Travaux Publics Procédé de construction d'une chaussée armée utilisant une structure métallique préfabriquée

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1862011A (en) * 1928-01-03 1932-06-07 Robert B Gage Concrete pavement and its construction
US1707939A (en) * 1928-08-06 1929-04-02 Leon R Mackenzie Wear course for pavements
FR2615520A1 (fr) * 1987-05-20 1988-11-25 Lefebvre Jean Ets Composition bitumineuse pour enrobes coules a froid, procede de realisation d'un tel enrobe et dispositif de dosage de fibres pour la mise en oeuvre du procede
EP0373041A1 (fr) * 1988-12-09 1990-06-13 Screg Routes Et Travaux Publics Procédé de construction d'une chaussée armée utilisant une structure métallique préfabriquée

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HIGHWAYS. vol. 58, no. 1957, January 1990, CROYDON GB pages 12 - 14; BUIST & INESON: 'geogrids in reinforcing asphaltic pavements' *
WEGEN. vol. 62, no. 2, February 1988, BOSKOOP NL pages 31 - 35; SCHOFFELEN: 'toepassing asfaltwapening in proefvakken' *
WEGEN. vol. 62, no. 4, April 1988, BOSKOOP NL pages 23 - 24; STOELHORST: 'astamat:wapen tegen asfaltvervorming' *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711834A (en) * 1994-10-28 1998-01-27 Tonen Corporation Method of reinforcing concrete slab
EP0709524A1 (fr) * 1994-10-28 1996-05-01 Tonen Corporation Procédé pour le renforcement de dalles en béton
US6017698A (en) * 1995-03-31 2000-01-25 Roche Diagnostics Gmbh Method of binding a biological material
CZ299961B6 (cs) * 1997-02-07 2009-01-07 N. V. Bekaert S. A. Výztužná sít pro vyztužování asfaltu
WO1998035100A1 (fr) 1997-02-07 1998-08-13 N.V. Bekaert S.A. Mat de renfort pour asphalte de renfort
WO1999053143A1 (fr) * 1998-04-15 1999-10-21 6D Solutions Structure rigide de renforcement et de solidarisation verticale de structures de roulement comme autoroutes ou ponts presentant des joints ou fissures
FR2777577A1 (fr) * 1998-04-15 1999-10-22 6D Solutions Structure rigide de renforcement et de solidarisation verticale de structures de roulement comme autoroutes ou ponts presentant des joints ou fissures
RU2144106C1 (ru) * 1999-01-26 2000-01-10 Воронежская государственная архитектурно-строительная академия Способ устройства дорожного покрытия
WO2002046532A1 (fr) * 2000-12-05 2002-06-13 Josef Ermer Dispositif servant a constituer et a consolider des terrains, notamment des routes
WO2006000565A1 (fr) * 2004-06-23 2006-01-05 Italcementi S.P.A. Revetement routier photocatalytique tres durable reduisant les agents polluants urbains
US8039100B2 (en) 2004-06-23 2011-10-18 Italcementi S.P.A. High durability photocatalytic paving for reducing urban polluting agents
EP1609910A1 (fr) * 2004-06-24 2005-12-28 Global Engineering and Trade S.r.L. Revetement avec effet photocatalytique
KR100726452B1 (ko) 2006-07-25 2007-06-11 정혜원 육교 및 교량 탄성바닥재 포설방법
WO2010006617A1 (fr) 2008-07-18 2010-01-21 Contec International Gmbh Surface de port de charge
JP2017089259A (ja) * 2015-11-11 2017-05-25 スリーエム イノベイティブ プロパティズ カンパニー 道路の補修又は補強用シート
KR101995931B1 (ko) * 2019-02-21 2019-07-03 모든철망 주식회사 보강메시를 이용한 도로포장 시공방법
CN111979868A (zh) * 2020-08-24 2020-11-24 陕西建工机械施工集团有限公司 一种道面面层双层钢筋网片混凝土施工方法
CN111979868B (zh) * 2020-08-24 2022-04-12 陕西建工机械施工集团有限公司 一种道面面层双层钢筋网片混凝土施工方法

Also Published As

Publication number Publication date
BE1004705A3 (nl) 1993-01-12
ATE158041T1 (de) 1997-09-15
DK0505010T3 (da) 1998-03-30
EP0505010B1 (fr) 1997-09-10
ES2109306T3 (es) 1998-01-16
DE69222073T2 (de) 1998-02-05
GR3025165T3 (en) 1998-02-27
DE69222073D1 (de) 1997-10-16

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