EP2591185B1 - Remediation of crosstie cracks - Google Patents
Remediation of crosstie cracks Download PDFInfo
- Publication number
- EP2591185B1 EP2591185B1 EP11730876.7A EP11730876A EP2591185B1 EP 2591185 B1 EP2591185 B1 EP 2591185B1 EP 11730876 A EP11730876 A EP 11730876A EP 2591185 B1 EP2591185 B1 EP 2591185B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- epoxy resin
- resin binder
- quartz sand
- sealing agent
- mixture
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/20—Working or treating non-metal sleepers in or on the line, e.g. marking, creosoting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
Definitions
- the present invention relates to a method and a grout for closing cracks in concrete sleepers.
- Icosit ® a 2-component epoxy resin binder, in the form of pourable mortar for bonding bolts and for pouring adhesive joints with a width of more than 1 cm to use. Resistant epoxy resin mortar is used for relining track pads, bridge bearings and machine foundations. Icosit ® is offered by Sika.
- JP 2007 255039 discloses a method of remedying such thresholds wherein the gap is first potted with epoxy alone. Subsequently, a cement based on quartz sand is applied to the area above and around the gap.
- DE 101 48 533 discloses a mixture of silica sand and epoxy resin for sealing rocks and structures. The mixture is pressed into the gaps and cavities. The Grain size of the solid is adapted to the dimension of the gap.
- cracks in the concrete sleeper are cast with a casting agent which consists of a castable epoxy resin mortar.
- the mortar is formed from a mixture of a Epoxidharzbindeschs with quartz sand.
- the quartz sand has a grain size of 0.1 mm to 1 mm.
- the grain size is 0.2 mm to 0.7 mm and more preferably 0.4 mm to 0.7 mm.
- the sand used preferably has grains with diameters in the total specified range of grain sizes. However, it is also possible that a sand is selected whose grains have only diameters in a smaller than the specified range. Examples are ranges of 0.1 mm to 0.3 mm, 0.2 mm to 0.7 mm and 0.5 mm to 1 mm.
- this pourable mortar is suitable for closing very small cracks in concrete sleepers. It has surprisingly been found that use of a finer grain size does not lead to a better result.
- the mortar is surprisingly suitable for cracks whose width is not or slightly greater than the grain size of the quartz sand used. Thus, cracks of a width equal to or smaller than 1 mm, in particular of 0.3 mm, 0.5 mm and 1 mm can be cast and closed.
- the epoxy resin binder and silica sand are used in a mixing ratio of 1: 1 weight percent.
- the epoxy resin binder is a 2-component agent.
- Icosit ® Sika has proven useful in particular Icosit ® Sika. Good results were achieved with Icosit ® KC 220/60 TX.
- the crack to be closed is preferably dried before it is cast with the mixture.
- a propane thawing device is suitable for drying.
- the pourable mortar is applied with a spatula and thus into the crack, whereby it is passed along the crack.
- the mixing ratio was 1: 1 by weight.
- the penetration depth of the thus-mixed pourable mortar was always about 10 mm. There were no significant differences.
- the potting compound is cured about 33 hours after processing.
- the potted sleepers can be used immediately after completion of the renovation.
Description
Die vorliegende Erfindung betrifft ein Verfahren und ein Vergussmittel zum Verschliessen von Rissen in Betonschwellen.The present invention relates to a method and a grout for closing cracks in concrete sleepers.
Eisenbahnschwellen sind starken Belastungen ausgesetzt. Sie müssen deshalb regelmäßig ersetzt werden. Dies ist relativ kostenintensiv und führt zudem zu längeren Unterbrüchen in der Benützung der Fahrbahn. Insbesondere bei sogenannten "festen Fahrbahnen", in welchen die Schwellen eingegossen sind, ist eine alternative Lösung zur Sanierung der Schwellen notwendig.Railway sleepers are exposed to heavy loads. They must therefore be replaced regularly. This is relatively expensive and also leads to longer interruptions in the use of the road. In particular, in so-called "solid lanes" in which the sleepers are cast, an alternative solution for the rehabilitation of the thresholds is necessary.
Es ist bekannt, Icosit®; ein 2-komponentiges Epoxidharzbindemittel, in Form von giessfähigem Mörtel zum Einkleben von Bolzen und zum Ausgiessen von Klebefugen mit einer Breite von mehr als 1 cm zu verwenden. Standfester Epoxidharzmörtel wird zur Unterfütterung von Gleisunterlagsplatten, Brückenlagern und Maschinenfundamenten verwendet. Icosit® wird von der Firma Sika angeboten.It is known Icosit ®; a 2-component epoxy resin binder, in the form of pourable mortar for bonding bolts and for pouring adhesive joints with a width of more than 1 cm to use. Resistant epoxy resin mortar is used for relining track pads, bridge bearings and machine foundations. Icosit ® is offered by Sika.
Es ist eine Aufgabe der Erfindung, ein einfaches, kostengünstiges und schnelles Verfahren und ein Mittel zur Sanierung von Betonschwellen einer Eisenbahnschiene zu schaffen.It is an object of the invention to provide a simple, inexpensive and fast method and means for remediating concrete sleepers of a railway track.
Diese Aufgabe löst ein Verfahren mit den Merkmalen des Anspruchs 1 und ein Vergussmittel mit den Merkmalen des Anspruchs 9.This object is achieved by a method having the features of claim 1 and a potting agent having the features of claim 9.
Erfindungsgemäss werden Risse in der Betonschwelle mit einem Vergussmittel vergossen, welches aus einem giessfähigen Epoxidharzmörtel besteht. Dabei ist der Mörtel aus einem Gemisch eines Epoxidharzbindemittels mit Quarzsand gebildet. Erfindungsgemäss weist der Quarzsand eine Körnung von 0.1 mm bis 1 mm auf. Vorzugsweise beträgt die Körnung 0.2 mm bis 0.7 mm und noch vorteilhafter 0.4 mm bis 0.7 mm.According to the invention, cracks in the concrete sleeper are cast with a casting agent which consists of a castable epoxy resin mortar. The mortar is formed from a mixture of a Epoxidharzbindemittels with quartz sand. According to the invention, the quartz sand has a grain size of 0.1 mm to 1 mm. Preferably, the grain size is 0.2 mm to 0.7 mm and more preferably 0.4 mm to 0.7 mm.
Der verwendete Sand weist vorzugsweise Körner mit Durchmessern im gesamten angegebenen Körnungsbereich auf. Es ist jedoch auch möglich, dass ein Sand gewählt wird, dessen Körner nur Durchmesser in einem kleineren als den angegebenen Bereich aufweisen. Beispiele hierfür sind Bereiche von 0.1 mm bis 0.3 mm, 0.2 mm bis 0.7 mm und 0.5 mm bis 1 mm.The sand used preferably has grains with diameters in the total specified range of grain sizes. However, it is also possible that a sand is selected whose grains have only diameters in a smaller than the specified range. Examples are ranges of 0.1 mm to 0.3 mm, 0.2 mm to 0.7 mm and 0.5 mm to 1 mm.
Es hat sich überraschenderweise gezeigt, dass sich dieser giessfähige Mörtel zu Verschliessen von sehr kleinen Rissen in Betonschwellen eignet. Es hat sich überraschenderweise gezeigt, dass eine Verwendung einer feineren Körnung nicht zu einem besseren Resultat führt. Der Mörtel eignet sich erstaunlicherweise auch für Risse, deren Breite nicht oder unwesentlich grösser ist als die verwendete Körnung des Quarzsandes. So lassen sich auch Risse von einer Breite von gleich oder kleiner als 1 mm, insbesondere von 0.3 mm, 0.5 mm und 1 mm vergiessen und verschliessen.It has surprisingly been found that this pourable mortar is suitable for closing very small cracks in concrete sleepers. It has surprisingly been found that use of a finer grain size does not lead to a better result. The mortar is surprisingly suitable for cracks whose width is not or slightly greater than the grain size of the quartz sand used. Thus, cracks of a width equal to or smaller than 1 mm, in particular of 0.3 mm, 0.5 mm and 1 mm can be cast and closed.
Dadurch lassen sich insbesondere Betonschwellen in festen Fahrbahnen frühzeitig sanieren und müssen nicht aus der Fahrbahn entfernt werden.As a result, in particular concrete sleepers can be rehabilitated in solid lanes early and must not be removed from the road.
Gute Resultate wurden erzielt, wenn ausser dem Bindemittel und dem Quarzsand keine weitere Komponente hinzugefügt wurde. Vorzugsweise werden das Epoxidharzbindemittel und Quarzsand in einem Mischungsverhältnis von 1:1 Gewichtsprozent verwendet.Good results were obtained when no further component except the binder and quartz sand was added. Preferably, the epoxy resin binder and silica sand are used in a mixing ratio of 1: 1 weight percent.
Vorzugsweise ist das Epoxidharzbindemittel ein 2-komponentiges Mittel. Bewährt hat sich insbesondere Icosit® der Firma Sika. Gute Resultate wurden mit Icosit® KC 220/60 TX erzielt.Preferably, the epoxy resin binder is a 2-component agent. Has proven useful in particular Icosit ® Sika. Good results were achieved with Icosit ® KC 220/60 TX.
Im erfindungsgemässen Verfahren wird der zu verschliessende Riss vorzugsweise getrocknet, bevor er mit dem Gemisch vergossen wird. Für die Trocknung eignet sich beispielweise ein Propan-Auftaugerät. Vorzugsweise wird der giessfähige Mörtel mit einem Spachtel auf und somit in den Riss aufgebracht, wobei er entlang des Risses verstrichen wird.In the method according to the invention, the crack to be closed is preferably dried before it is cast with the mixture. For example, a propane thawing device is suitable for drying. Preferably, the pourable mortar is applied with a spatula and thus into the crack, whereby it is passed along the crack.
Weitere Ausführungsformen und Varianten des Verfahrens sind in den abhängigen Ansprüchen angegeben.Further embodiments and variants of the method are given in the dependent claims.
Es wurde Icosit® KC 220/60 TX mit Quarzsand der folgenden Körnungen gemischt:
- a) 0.1 mm bis 0.3 mm
- b) 0.2 mm bis 0.7 mm
- c) 0.5 min bis 1.0 mm
- d)
- a) 0.1 mm to 0.3 mm
- b) 0.2 mm to 0.7 mm
- c) 0.5 min to 1.0 mm
- d)
Das Mischungsverhältnis war jeweils 1:1 Gewichtsprozent.The mixing ratio was 1: 1 by weight.
Es wurden Risse von 0.3 mm, 0.5 mm und 1.0 mm vergossen.Cracks of 0.3 mm, 0.5 mm and 1.0 mm were cast.
Die Eindringtiefe des so gemischten giessfähigen Mörtels betrug stets circa 10 mm. Es konnten keine signifikanten Unterschiede festgestellt werden.The penetration depth of the thus-mixed pourable mortar was always about 10 mm. There were no significant differences.
Beim Verschliessen der Risse wird wie folgt vorgegangen:
- a) die zu vergiessenden Risse werden gekennzeichnet
- b) die Baustelle wird eingerichtet
- c) die Risse werden allenfalls gesäubert und mittels eines Propan-Auftaugeräts getrocknet
- d) der erfindungsgemässe Mörtel wird von Hand in die Risse gegossen, bei einer Aussentemperatur von +5°C bis +35°C oder mit einem Spachtel aufgebracht und
- e) die Vergussmasse wird nachbearbeitet, insbesondere mit einem Spachtel verstrichen. Die Nachbearbeitung erfolgt unmittelbar nach der Aufbringung des Mörtels.
- a) the cracks to be poured are marked
- b) the construction site is being set up
- c) if necessary, the cracks are cleaned and dried by means of a propane thawing device
- d) the inventive mortar is poured by hand into the cracks, applied at an outside temperature of + 5 ° C to + 35 ° C or with a spatula and
- e) the potting compound is reworked, in particular with a spatula elapsed. The post-processing takes place immediately after the application of the mortar.
Die Vergussmasse ist circa 33h nach der Verarbeitung ausgehärtet. Die vergossenen Schwellen können jedoch sofort nach Beendigung der Sanierung befahren werden.The potting compound is cured about 33 hours after processing. However, the potted sleepers can be used immediately after completion of the renovation.
Claims (15)
- A method for sealing cracks in concrete crossties of a railway track, in particular in concrete crossties of a ballastless railway track, wherein the cracks have a width of equal to or less than 1 mm, characterized in that, for the sealing, a mixture of an epoxy resin binder with quartz sand is used, wherein it is poured as a mixture into the crack or it is applied as a mixture onto and into the crack, wherein the quartz sand has a grain size from 0.1 mm to 1 mm.
- The method as claimed in claim 1, wherein a grain size from 0.2 mm to 0.7 mm, in particular from 0.4 mm to 0.7 mm, is used.
- The method as claimed in either of claims 1 and 2, wherein epoxy resin binder and quartz sand are used in a mixing ratio of 1:1 weight percent.
- The method as claimed in any one of claims 1 to 3, wherein, as epoxy resin binder, a 2-component agent is used.
- The method as claimed in any one of claims 1 to 4, wherein, as epoxy resin binder, Icosit® is used.
- The method as claimed in claim 5, wherein, as epoxy resin binder, Icosit® KC 220/00 TX is used.
- The method as claimed in any one of claims 1 to 6, wherein a crack that is to be sealed is dried before it is filled with the mixture.
- The method as claimed in claim 7, wherein a propane thawing apparatus is used for the drying.
- A sealing agent for use in the method as claimed in any one of claims 1 to 8, characterized in that the sealing agent consists of a mixture of an epoxy resin binder with quartz sand, wherein the quartz sand has a grain size from 0.1 mm to 1 mm.
- The sealing agent as claimed in claim 9, wherein the quartz sand has a grain size from 0.2 mm to 0.7 mm, in particular from 0.4 mm to 0.7 mm.
- The sealing agent as claimed in either of claims 9 and 10, wherein epoxy resin binder and quartz sand are present in a mixing ratio of 1:1 weight percent.
- The sealing agent as claimed in any one of claims 9 to 11, wherein the epoxy resin binder is a 2-component agent.
- The sealing agent as claimed in any one of claims 9 to 12, wherein the epoxy resin binder is Icosit®.
- The sealing agent as claimed in claim 13, wherein the epoxy resin binder is Icosit® KC 220/60 TX.
- The sealing agent according to claim 9, wherein the mixture consists exclusively of the quartz sand and the epoxy resin binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11730876.7A EP2591185B1 (en) | 2010-07-09 | 2011-06-30 | Remediation of crosstie cracks |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10405133A EP2405080A1 (en) | 2010-07-09 | 2010-07-09 | Arrangement for filling cracks in railway sleepers |
| PCT/CH2011/000156 WO2012003594A1 (en) | 2010-07-09 | 2011-06-30 | Remediation of crosstie cracks |
| EP11730876.7A EP2591185B1 (en) | 2010-07-09 | 2011-06-30 | Remediation of crosstie cracks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2591185A1 EP2591185A1 (en) | 2013-05-15 |
| EP2591185B1 true EP2591185B1 (en) | 2015-01-14 |
Family
ID=43299334
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10405133A Withdrawn EP2405080A1 (en) | 2010-07-09 | 2010-07-09 | Arrangement for filling cracks in railway sleepers |
| EP11730876.7A Active EP2591185B1 (en) | 2010-07-09 | 2011-06-30 | Remediation of crosstie cracks |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10405133A Withdrawn EP2405080A1 (en) | 2010-07-09 | 2010-07-09 | Arrangement for filling cracks in railway sleepers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20130147075A1 (en) |
| EP (2) | EP2405080A1 (en) |
| AU (1) | AU2011276931A1 (en) |
| CA (1) | CA2803648A1 (en) |
| DK (1) | DK2591185T3 (en) |
| EA (1) | EA021221B1 (en) |
| ES (1) | ES2531045T3 (en) |
| WO (1) | WO2012003594A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202012001306U1 (en) * | 2012-02-10 | 2013-05-13 | Bennert Ingenieurbau Gmbh | Apparatus for post-consolidation of a rail in a ballastless installation |
| DE202012001307U1 (en) * | 2012-02-10 | 2013-05-13 | Bennert Ingenieurbau Gmbh | Apparatus for post-consolidation of a rail in a ballastless installation |
| PL2690218T3 (en) | 2012-07-22 | 2017-08-31 | GETEK Holding GmbH | Method for crack repair on concrete sleepers for railway tracks |
| CN103761401B (en) * | 2014-02-14 | 2016-07-06 | 中铁第一勘察设计院集团有限公司 | CRTS III type non-fragment orbit fabric swatch and construction integrated data processing method |
| RU2669718C1 (en) * | 2018-02-08 | 2018-10-15 | Ханлар Шахлар оглы Бабаханов | Polymeric composition for rails repair |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1171459B (en) * | 1962-09-07 | 1964-06-04 | Henkel & Cie Gmbh | Procedure for reattaching loosened sleeper bolts |
| CA2031649A1 (en) * | 1989-12-08 | 1991-06-09 | Jude O. Igwemezie | Attenuating pad for concrete railway ties |
| GB2265901B (en) * | 1992-04-06 | 1996-04-10 | Paul Douglas Bailey | Epoxy resin |
| US5771557A (en) * | 1996-11-21 | 1998-06-30 | Contrasto; Sam | Concrete internal metal stitching |
| JP2002332604A (en) * | 2001-05-07 | 2002-11-22 | Sekisui Chem Co Ltd | Method for re-driving screw spike to composite sleeper |
| DE10148533A1 (en) * | 2001-10-01 | 2003-04-10 | Zueblin Ag | Method for sealing cracks in rocks or in man-made structures involves application of a mixture of an inorganic solid and a molten bonding agent through boreholes |
| JP2007126844A (en) * | 2005-11-02 | 2007-05-24 | Asahi Kasei Chemicals Corp | Method and fixing agent for repairing sleeper |
| JP4226015B2 (en) * | 2006-03-23 | 2009-02-18 | 住友大阪セメント株式会社 | How to repair concrete sleepers |
-
2010
- 2010-07-09 EP EP10405133A patent/EP2405080A1/en not_active Withdrawn
-
2011
- 2011-06-30 AU AU2011276931A patent/AU2011276931A1/en not_active Abandoned
- 2011-06-30 CA CA2803648A patent/CA2803648A1/en not_active Abandoned
- 2011-06-30 US US13/809,005 patent/US20130147075A1/en not_active Abandoned
- 2011-06-30 DK DK11730876T patent/DK2591185T3/en active
- 2011-06-30 ES ES11730876T patent/ES2531045T3/en active Active
- 2011-06-30 EA EA201291478A patent/EA021221B1/en not_active IP Right Cessation
- 2011-06-30 WO PCT/CH2011/000156 patent/WO2012003594A1/en active Application Filing
- 2011-06-30 EP EP11730876.7A patent/EP2591185B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2803648A1 (en) | 2012-01-12 |
| AU2011276931A1 (en) | 2013-01-17 |
| US20130147075A1 (en) | 2013-06-13 |
| ES2531045T3 (en) | 2015-03-10 |
| EP2405080A1 (en) | 2012-01-11 |
| EA021221B1 (en) | 2015-04-30 |
| DK2591185T3 (en) | 2015-04-13 |
| EA201291478A1 (en) | 2013-06-28 |
| EP2591185A1 (en) | 2013-05-15 |
| WO2012003594A1 (en) | 2012-01-12 |
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