EP0505010B1 - A method for reinforcing a covering layer on ground - Google Patents
A method for reinforcing a covering layer on ground Download PDFInfo
- Publication number
- EP0505010B1 EP0505010B1 EP92200790A EP92200790A EP0505010B1 EP 0505010 B1 EP0505010 B1 EP 0505010B1 EP 92200790 A EP92200790 A EP 92200790A EP 92200790 A EP92200790 A EP 92200790A EP 0505010 B1 EP0505010 B1 EP 0505010B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- net
- reinforcement
- binding
- hardening
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 title abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims abstract description 3
- 239000010426 asphalt Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 239000008187 granular material Substances 0.000 claims description 9
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000010494 dissociation reaction Methods 0.000 claims description 3
- 230000005593 dissociations Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 230000009969 flowable effect Effects 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 10
- 239000000835 fiber Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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.
- ASTAMAT® Wapen tegen Asfaltvervorming
- Wegen of april 1988 pp. 23 and 24
- ASTAMAT-net is deposited on the underground and filled up by a filling layer which is further rolled (compacted) before applying the covering layer. The net is not sticked to the underground before filling it up.
- 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, as claimed in claim 1.
- 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.
- composition of the binding layer as defined in claim 1 is 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 upper part of the covering layer is a layer of bituminous concrete (usually applied hot), in which the binding layer is a slightly viscous bituminous mortar that contains a powdered mineral filler, sharp sand and possibly natural sand and crushed rock.
- the granule thicknesses in the mixture 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 1 to 4 parts by weight of an emulsion destabilizer (dissociation accelerator, such as cement) which causes the gradual elimination of the water phase from the mixture to bring about its hardening.
- an emulsion destabilizer dissociation accelerator, such as cement
- 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 m 2 of foundation surface area, and preferably between 8 and 20 kg/m 2 .
- 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 mm 2 ), 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 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/m 2 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 m 2 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9100268A BE1004705A3 (nl) | 1991-03-22 | 1991-03-22 | Werkwijze voor het wapenen van een bovenlaag van een terrein. |
BE9100268 | 1991-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0505010A1 EP0505010A1 (en) | 1992-09-23 |
EP0505010B1 true EP0505010B1 (en) | 1997-09-10 |
Family
ID=3885404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92200790A Expired - Lifetime EP0505010B1 (en) | 1991-03-22 | 1992-03-19 | A method for reinforcing a covering layer on ground |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0505010B1 (nl) |
AT (1) | ATE158041T1 (nl) |
BE (1) | BE1004705A3 (nl) |
DE (1) | DE69222073T2 (nl) |
DK (1) | DK0505010T3 (nl) |
ES (1) | ES2109306T3 (nl) |
GR (1) | GR3025165T3 (nl) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP3702531A1 (de) | 2019-02-28 | 2020-09-02 | SK Wiegrink Beteiligungs GmbH | Fugenfüllungsprofil |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08128211A (ja) * | 1994-10-28 | 1996-05-21 | Tonen Corp | コンクリート床版の補強方法 |
EP0734768B1 (de) * | 1995-04-01 | 2002-08-28 | Roche Diagnostics GmbH | Verfahren zur Bindung eines biologischen Materials |
BE1010910A3 (nl) * | 1997-02-07 | 1999-03-02 | Bekaert Sa Nv | Wapeningsmat voor het versterken van asfalt. |
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 |
WO2002046532A1 (de) * | 2000-12-05 | 2002-06-13 | Josef Ermer | Anordnung zum aufbau und verfestigung von böden, insbesondere strassen |
ITMI20041261A1 (it) | 2004-06-23 | 2004-09-23 | Italcementi Spa | Pavimentazione fotocatalitica ad elevata durevolezza per l'abbattimento di inquinanti urbani |
EP1609910A1 (en) * | 2004-06-24 | 2005-12-28 | Global Engineering and Trade S.r.L. | A pavement with photocatalytic effect |
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 |
KR100726452B1 (ko) | 2006-07-25 | 2007-06-11 | 정혜원 | 육교 및 교량 탄성바닥재 포설방법 |
EP2318590A1 (en) | 2008-07-18 | 2011-05-11 | Contec International GmbH | Load-bearing surface |
JP6647017B2 (ja) * | 2015-11-11 | 2020-02-14 | 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 |
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 |
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 |
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 |
Family Cites Families (4)
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 |
FR2615520B1 (fr) * | 1987-05-20 | 1989-08-25 | 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 |
FR2640297B1 (fr) * | 1988-12-09 | 1991-10-11 | Screg Routes & Travaux | Procede de construction d'une chaussee armee utilisant une structure metallique |
-
1991
- 1991-03-22 BE BE9100268A patent/BE1004705A3/nl not_active IP Right Cessation
-
1992
- 1992-03-19 DK DK92200790.1T patent/DK0505010T3/da active
- 1992-03-19 EP EP92200790A patent/EP0505010B1/en not_active Expired - Lifetime
- 1992-03-19 AT AT92200790T patent/ATE158041T1/de not_active IP Right Cessation
- 1992-03-19 DE DE69222073T patent/DE69222073T2/de not_active Expired - Fee Related
- 1992-03-19 ES ES92200790T patent/ES2109306T3/es not_active Expired - Lifetime
-
1997
- 1997-10-29 GR GR970402799T patent/GR3025165T3/el unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP3702531A1 (de) | 2019-02-28 | 2020-09-02 | SK Wiegrink Beteiligungs GmbH | Fugenfüllungsprofil |
Also Published As
Publication number | Publication date |
---|---|
BE1004705A3 (nl) | 1993-01-12 |
DK0505010T3 (da) | 1998-03-30 |
EP0505010A1 (en) | 1992-09-23 |
DE69222073D1 (de) | 1997-10-16 |
ATE158041T1 (de) | 1997-09-15 |
ES2109306T3 (es) | 1998-01-16 |
DE69222073T2 (de) | 1998-02-05 |
GR3025165T3 (en) | 1998-02-27 |
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