EP2631363B1 - Road construction and use of insulation plate in road construction - Google Patents
Road construction and use of insulation plate in road construction Download PDFInfo
- Publication number
- EP2631363B1 EP2631363B1 EP20130156072 EP13156072A EP2631363B1 EP 2631363 B1 EP2631363 B1 EP 2631363B1 EP 20130156072 EP20130156072 EP 20130156072 EP 13156072 A EP13156072 A EP 13156072A EP 2631363 B1 EP2631363 B1 EP 2631363B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- road
- road construction
- insulation layer
- construction
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims description 115
- 238000009413 insulation Methods 0.000 title claims description 52
- 239000010410 layer Substances 0.000 claims description 102
- 239000002689 soil Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 22
- 230000001413 cellular effect Effects 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 20
- 239000002344 surface layer Substances 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 8
- 229920002223 polystyrene Polymers 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000004035 construction material Substances 0.000 description 12
- 239000002585 base Substances 0.000 description 9
- 239000004575 stone Substances 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004794 expanded polystyrene Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- 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
-
- 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
- E01C3/006—Foundations for pavings made of prefabricated single units
Definitions
- the invention relates to a road construction and use of an insulation plate manufactured of cellular plastic in a road construction according to the preamble of claim 1.
- the road soil consisting of natural materials, such as clay, can be naturally soft and weakly bearing, as a consequence of which such road soil construction is weakly load-bearing.
- frost and melting of frost causes movement of soil elements and thus damages the road soils.
- frost susceptible soil bases In frost susceptible soil bases, the risk of surface damages in road, street and residential area is high. When repairing the street or yard damaged by frost, it is not expedient to repair them only by resurfacing, but it will also be necessary to improve the frost protection of the construction. Frost damages are caused by oversized frost heave, which can be reduced by frost protection.
- frost protection can be realized when constructing or repairing streets and yards also by using frost insulation plates.
- XPS extruded polystyrene
- ruts start to form to the road in the course of time, since the soil base will be unevenly indented as a result of the load.
- EPS expanded polystyrene
- EPS layers usable in soil constructions become, however, easily remarkably thick. Furthermore, the problem is that the plates collapse due to the load directed to the road, and consequently also the road soil structure collapses, which causes also damaging of the road surface layer.
- EPS lightweight fill material layers also a structure supporting steel wire net, concrete tile or other structure bracing the upper part of the construction, is needed for the road construction, so the implementation of the construction requires many working phases.
- An object of the present invention is to reduce or even eliminate the above-mentioned problems appearing in prior art.
- An object of the present invention is to achieve a sufficiently firm road construction, which distributes the load evenly to the soil base and which withstands the load of the vehicle traffic.
- An object of the present invention is also to achieve a simple, cost-effective and easily implementable road construction, with which also a good frost protection is achieved.
- the road construction according to the invention is characterized by what is presented in the characterizing part of the enclosed independent claim 1.
- a typical road construction according to the invention comprises a first edge and a second edge in the lateral direction of the road, and at least a road surface layer and construction layers and an insulation layer are arranged under the surface layer.
- the insulation layer has been formed by arranging at least one layer of plates over the substantial width defined by the first and the second edge of the road construction, which plates comprise an insulation layer made of cellular plastic which is extruded polystyrene and the first planar surface and the second planar surface of which insulation layer comprise a structure reinforcing alkali protected glass fiber mat, which is attached to the insulation layer with a coating material, such as concrete, mortar or adhesive mass.
- An object of the invention is also the use of the insulation plate, which comprises an insulation layer made of cellular plastic which is extruded polystyrene, and the first planar surface and the second planar surface of which insulation layer comprise a structure reinforcing alkali protected glass fiber mat, which is attached to the insulation layer with a coating material, such as concrete, mortar or adhesive mass, under the surface layer in the road and soil construction.
- a coating material such as concrete, mortar or adhesive mass
- the road construction according to the invention is based on the fact that with the aid of the cellular plastic plates to be arranged in the construction and which plates are coated with fiber mat, the distribution capability of the point loads of the frost insulation/lightweight fill material in the road construction can be improved, whereby the forming of ruts does not occur at least due to uneven collapse of the soil base, but because of the plates used in the invention the load may be evenly distributed over the entire width of the road, whereby the collapse of the foundation soil occurs evenly. Thus, the damaging and rutting of the road surface layer can be prevented.
- the bending strength of the coated plates made of cellular plastic used in the invention is good, as a consequence of which a supporting road construction can be achieved, since the coated plates to be used do not stretch or collapse due to the load and thus don't cause any damaging of the road construction.
- An especially supporting road structure is achieved by arranging one or more layers of coated plates in the road soil construction.
- the use of firm insulation plates according to the invention in the road construction enables also the use of a rougher filling material for filling the road soil, which again brings cost savings for the material costs of the road construction.
- cellular plastic plates coated with fiber mat act as a frost insulation and lightweight fill material as well as a stiffener of the road construction, so that with the insulation layer according to the invention the road construction can be made firm and the frost heaving can be prevented or restricted in the soil under the road construction.
- the solution according to the invention simplifies and accelerates the building of the road construction, since it is not necessary to install any separate frost insulation or lightweight fill material and reinforcing structure, such as steel wire net, concrete tile or other stiffness improving structure, in the construction, but the desired properties can be included in the construction by one installation by using one kind of plates, which have the required properties.
- the invention is especially based on the fact, that the bending strength of the insulation plate acting as a frost insulator or lightweight fill material has been enhanced by the plate coating.
- the properties of the cellular plastic plates fulfill the properties required in the road construction.
- cellular plastic refers to plastics of which controllably foamy materials have been made.
- the insulation plate has a sufficient compression strength, which can vary between ca. 100-700 kPa depending on the load level of the road construction.
- the plates are prepared from a plate made of extruded polystyrene, i.e. XPS plate.
- Extruded polystyrene (XPS) suits especially for the road construction, since its cellular structure is closed and uniform, and therefore water can't pass through the plate. This way the plate remains dry and doesn't get water-logged in the road construction and thus its insulation capacity remains good for decades.
- plates which comprise a first planar surface and a second planar surface and outer edges defining the plate, are used in the road construction according to the invention.
- the plates are substantially rectangular or quadrangle in form.
- the first planar surface and the second planar surface of the plate made of cellular plastic, i.e. the so called insulation layer of the plate, are substantially entirely coated with a reinforcing fiber mat or similar structure reinforcing the construction, such as a fiber network or fiber web, so that it has been possible to enhance the bending strength and tensile strength of the plate made of cellular plastic.
- the plates are coated at least on their one surface with one, two or more reinforcing fiber mat layers.
- the plates are coated on their both surfaces with one or two reinforcing fiber mat layers.
- the fiber mat and the fiber mat layers are attached to the surface of the insulation layer with coating material, such as concrete, mortar or adhesive mass.
- the adhesive mass can be for example a polyurethane adhesive mass.
- glass fiber network is used for coating of plates.
- the plates according to the invention typically comprise a netlike fiber mat, which is formed of individual fibers or fiber strands.
- the diameter of the fiber used in the fiber network is typically 0.2-3 mm, most typically 1-3 mm.
- the mesh size of the fiber network is typically 3 ⁇ 3 mm-20 ⁇ 20 mm.
- the fiber mat or the fiber mat layers are attached to the insulation layer with coating material, such as concrete, mortar or adhesive mass.
- the thickness of the concrete, mortar or adhesive mass layer used for attaching is substantially the same as the diameter of the fiber of the used fiber mat or the thickness of the fiber mat layers, i.e. the fiber mat or the fiber mat layers substantially set into the concrete, mortar or adhesive mass layers.
- the plates made of cellular plastic are coated with alkali protected glass fiber network, whereby the strength of the plates is enhanced.
- XPS plates are used, the planar surfaces of which plates comprise an alkali protected glass fiber mat, which is attached to the XPS insulation layer with concrete, mortar or adhesive mass.
- the XPS plate is coated on its both surfaces with one or two alkali protected glass fiber network layers.
- the thickness of the insulation layer of the plate used is typically 10-200 mm, more typically 20-120 mm and most typically 50-100 mm.
- the length of the long side edges of the rectangular plate is typically 700-4000 mm, more typically 1000-3000 mm and most typically 1200-2600 mm.
- the length of the short side edges of the plate is typically 300-1500 mm, more typically 500-1300 mm and most typically 600-1200 mm.
- the insulation layer of the road construction is typically formed of one, two or more superposed plates.
- one layer of plates is arranged over the substantial width of the entire road construction.
- the insulation layer can comprise at least over a part of the width of the road construction at least two layers of superposed plates made of cellular plastic, or the insulation layer can comprise over the entire width of the road construction at least two layers of superposed plates made of cellular plastic.
- the necessary insulation layer depends on the load of the road or yard area.
- the plates of the superposed layers are placed staggered, so that the joints between the plates are not aligned in different layers.
- Plates are typically placed substantially over the entire width of the road construction in the direction of the plane of the road surface.
- same number of layers of plates are placed over the entire width of the road construction.
- the width of the layers formed by the plates can differ from each other, whereby for example a part of the layers is slightly wider or narrower than the width of the road to be constructed, since whole plates of the same size are typically used in the construction, whereby the width of the layer can vary due to the staggered joints.
- the width of the successive rows formed by the plates can also vary in the longitudinal direction of the road construction.
- the plates of the superposed layers can also be placed divergently in the construction, for example when using rectangular plates in one layer, the longer side of the plates is in the lateral direction of the road and in the second layer in the longitudinal direction of the road.
- one continuous layer of plates is arranged substantially over the entire area of the road construction and on this continuous layer an additional layer or layers of plates is placed only to those places, to which the biggest part of the load is directed.
- This construction thus comprises one continuous layer formed of plates and a second layer on the continuous layer, which layer is not continuous in the lateral direction of the road, but typically comprises 2, 3 or 4 sections formed of insulation plates in the lateral direction of the road.
- the spaces between the sections formed by the plates of the second insulation plate layer are filled with the road construction material.
- the total thickness of the supporting structure formed by the plates is typically about 50-400 mm and more typically 100-200 mm.
- the total thickness formed by the plates can vary in the lateral direction of the road.
- the total thickness of the layer formed by the plates depends among other things on the load of the road or street. A heavily trafficked street or road needs a thicker supporting layer than a courtyard road.
- the plates are arranged 20-100 cm, typically 30-70 cm under the surface layer of the road.
- a construction material layer such as gravel, crushed stone, sand or other stone material, between the surface layer and the plates of the road construction. This construction material layer is applied and compacted on the insulation plates and it acts as a supporting layer of the road construction, on which layer the required surface layer or surface layers are placed.
- the plates can have evenly flattened edges, whereby the plates are placed tightly against each other in the construction by using a butt joint.
- the adjacent/successive plates are attached to each other by a tongue-and-groove-joint, whereby the plates remain better in their places.
- the plates are connected to each other by a locked tongue-and-groove-joint.
- a levelling course has typically been applied under the plates, which levelling course is sand or other stone material.
- This levelling course is formed on the soil base and its thickness is typically at least 20 cm, more typically about 30 cm.
- the insulation plates are placed on this levelling course.
- the thickness of the construction layers (supporting layer and levelling course) of the road construction according to the invention depends on the expected traffic of the road to be constructed, the heavier the traffic, the more supportive, i.e. thicker the layers of the road construction must be.
- the road surface layer can be the same or different material than the other road construction material.
- the surface layer can be any coating suitable for the purpose of use, such as for example asphalt or gravel.
- the construction can also be used under other constructions, such as set pavements.
- the method for supporting the road construction typically comprises at least the following steps:
- the road construction according to the invention can be used in connection with all kinds of traffic routes, such as roads, streets, highways, courtyard roads and other similar constructions, where it is necessary to reinforce the construction and prevent uneven collapse of the construction and at the same time form a required frost protection.
- the road construction refers in this application to a road construction as well as to a street construction or a yard construction.
- Fig. 1 shows a plate 1 to be used in a road construction according to the invention, which plate comprises an insulation layer 2, which has a first planar surface 3 and a second planar surface 4.
- the insulation layer 2 of the plate is made of extruded polystyrene (XPS).
- the planar surfaces 3, 4 of the insulation layer comprise a reinforcing fiber mat, which is attached to the insulation layer with concrete, mortar or adhesive mass.
- the edges of the plate shown in Fig. 1 are flattened, but they can be shaped, when necessary, to comprise grooves which enable a tongue-and-groove joint.
- Fig. 2 shows by way of an example a road construction according to the invention, where cellular plastic plates of Fig. 1 are placed as a supporting structure in the soil base.
- the purpose of the figure is to illustrate the location of the plates in the road construction.
- soil base 8 has been removed from the place of the road construction to be and a first construction material layer 7, a so-called levelling course, which is typically sand or other stone material, has been arranged in the place of the removed soil.
- An insulation layer supporting the road construction formed of coated cellular plastic plates 1, 1' according to the invention has been arranged on this stone material layer.
- FIG 3 shows another road construction according to the invention.
- Construction material 6 and frost insulation plates 1, 1' according to the invention supporting the construction are arranged under the road surface construction layer 5.
- Plates 1, 1' are arranged in the construction such that they form one uniform layer substantially over the entire width of the road construction and on this uniform layer plates are arranged to those places 9, 9', to which the biggest load is presumably directed in the road construction.
- the load is caused by the vehicles 10, 10' using the road, the load of which vehicles is typically distributed to the places of the wheel tracks formed by the vehicles.
- the plates 1, 1' distribute the load caused by the vehicles over a wide area, as a consequence of which the possible collapse of the road construction occurs evenly over the entire width of the road construction.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13156072T PL2631363T3 (pl) | 2012-02-21 | 2013-02-21 | Konstrukcja drogi i zastosowanie płyty izolacyjnej w konstrukcji drogi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20125201A FI20125201L (fi) | 2012-02-21 | 2012-02-21 | Tierakenne ja menetelmä tierakenteen tukemiseksi |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2631363A1 EP2631363A1 (en) | 2013-08-28 |
EP2631363B1 true EP2631363B1 (en) | 2015-05-13 |
Family
ID=47739148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20130156072 Active EP2631363B1 (en) | 2012-02-21 | 2013-02-21 | Road construction and use of insulation plate in road construction |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2631363B1 (fi) |
DK (1) | DK2631363T3 (fi) |
ES (1) | ES2544311T3 (fi) |
FI (1) | FI20125201L (fi) |
PL (1) | PL2631363T3 (fi) |
PT (1) | PT2631363E (fi) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH084012A (ja) * | 1994-06-22 | 1996-01-09 | Kanegafuchi Chem Ind Co Ltd | 仮設道路用樹脂発泡体ブロックおよびその連結体 |
DE19647981A1 (de) * | 1995-11-23 | 1997-05-28 | Basf Ag | Frostschutzdämmplatten |
FR2747705B1 (fr) * | 1996-04-18 | 1998-05-29 | Screg | Remblai allege |
NO304882B1 (no) * | 1996-05-10 | 1999-03-01 | Ombruk Nord As | FremgangsmÕte til behandling av forbruksavfall, et derved fremstilt produkt, samt anvendelse derav |
NL2001295C2 (nl) * | 2008-02-19 | 2009-08-20 | Dura Vermeer Business Dev B V | Werkwijze ter vervaardiging van een constructie. |
NL2004245C2 (nl) * | 2010-02-15 | 2011-08-16 | Gemeentewerken Gemeente Rotterdam | Funderingsconstructie, alsmede infrastructuur met een dergelijke funderingsconstructie. |
-
2012
- 2012-02-21 FI FI20125201A patent/FI20125201L/fi not_active Application Discontinuation
-
2013
- 2013-02-21 DK DK13156072.4T patent/DK2631363T3/en active
- 2013-02-21 ES ES13156072.4T patent/ES2544311T3/es active Active
- 2013-02-21 EP EP20130156072 patent/EP2631363B1/en active Active
- 2013-02-21 PT PT131560724T patent/PT2631363E/pt unknown
- 2013-02-21 PL PL13156072T patent/PL2631363T3/pl unknown
Also Published As
Publication number | Publication date |
---|---|
PT2631363E (pt) | 2015-09-14 |
ES2544311T3 (es) | 2015-08-28 |
EP2631363A1 (en) | 2013-08-28 |
DK2631363T3 (en) | 2015-07-27 |
FI20125201L (fi) | 2013-08-22 |
PL2631363T3 (pl) | 2015-10-30 |
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