EP2503097A2 - Emballage adhésif et son utilisation à l'aide d'un élément d'ancrage - Google Patents

Emballage adhésif et son utilisation à l'aide d'un élément d'ancrage Download PDF

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Publication number
EP2503097A2
EP2503097A2 EP12154602A EP12154602A EP2503097A2 EP 2503097 A2 EP2503097 A2 EP 2503097A2 EP 12154602 A EP12154602 A EP 12154602A EP 12154602 A EP12154602 A EP 12154602A EP 2503097 A2 EP2503097 A2 EP 2503097A2
Authority
EP
European Patent Office
Prior art keywords
composition
adhesive
component
reactive
film bag
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.)
Withdrawn
Application number
EP12154602A
Other languages
German (de)
English (en)
Other versions
EP2503097A3 (fr
Inventor
Kolja Wieczorek
Astrid Buder
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.)
DSI Underground Australia Pty Ltd
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP2503097A2 publication Critical patent/EP2503097A2/fr
Publication of EP2503097A3 publication Critical patent/EP2503097A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
    • E21D20/025—Grouting with organic components, e.g. resin
    • E21D20/026—Cartridges; Grouting charges
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods

Definitions

  • the invention relates to an adhesive package, in particular for use with an anchoring element, with a tubular film bag for receiving a multi-component adhesive composition.
  • the volume change associated with the leakage of the liquid components during storage may also affect the functional use of the film bag.
  • a sagging foil pouch may cause the rotationally inserted anchor rod to not reproducibly cut the foil pouch.
  • the chamber in which the reaction resin component is stored squeeze the chamber for the hardener component and thus interfere with the uniform pressing of the hardener component.
  • the invention also provides the use of the adhesive package according to the invention with an anchoring element according to claim 10.
  • the invention thus provides an adhesive package in which a plurality of differently curable reactive resin compositions are preferably contained in a continuous chamber of a closed at both ends of the film bag. After the complete emptying of the film bag and the mixing of the hardener component with the reactive resin component, there are at least two masses curing at different rates.
  • the mass introduced first into the borehole hardens at a moderate speed in order not to block the afterflow of the second mass by premature gelation or hardening.
  • the second mass flowing out after the first mass should preferably harden immediately in order to ensure an initial strength of the connection between the anchoring element and the surrounding rock.
  • the last filled in the foil bag and thus arranged behind the second composition further polymerizable composition takes over in the application no rate-determining function for the curing. However, it represents a leakage protection for the usually low-viscosity second reactive resin composition during storage.
  • the proportion of the further polymerizable composition in the total amount of the adhesive composition is therefore preferably determined in terms of function as leakage protection. Therefore, a significantly lower amount of the further polymerizable composition compared to the first and second compositions may be present.
  • the invention enables the use of highly reactive adhesive compositions which usually contain reactive diluents based on (meth) acrylates. Since these compounds are present as liquids at the usual use temperatures of 0 to 35 ° C, with the adhesive package according to the invention a significantly improved storage stability and consistent functionality can be achieved.
  • the adhesive package of the present invention also allows for a fast set time of prestressable and non-prestressable anchoring elements regardless of the ambient temperature of the rock, as there is both a fast hardening mass advantageous for cold rocks and a slow-setting adhesive mass which is advantageous for use with warmer rocks.
  • the further composition can be optimally adapted to the function as leakage protection, for example by setting a high viscosity or the use of components with which the capillaries are blocked in the closure section of the film bag can.
  • the reactive resin component used is preferably compositions having at least one olefinically unsaturated base resin, a reactive diluent and a curing accelerator.
  • Reactive resins for use in adhesive compositions for the chemical anchoring of fasteners are known in principle and, for example in the DE-A 42 31 161 or the US-A 4,518,283 disclosed.
  • the reactive diluent preferably comprises compounds selected from the group consisting of alkyl (meth) acrylate, hydroxyalkyl (meth) acrylate, in particular hydroxypropyl (meth) acrylate and hydroxyethyl (meth) acrylate, styrene and styrene derivatives such as divinylbenzene and alkylstyrene, in particular ⁇ -methylstyrene, vinyltoluene and tert-butylstyrene, and ethylene glycol di (meth) acrylate and butanediol di (meth) acrylate). Preference is given to styrene and butanediol di (meth) acrylate.
  • Suitable curing accelerators are tertiary amines such as triethylamine, dialkylarylamines such as N, N-dimethyl-p-toluidine and N, N-dimethylaniline, capped amines in the form of imines such as the imine from aniline and butanal, and dihydropyridine derivatives such as 3,5-diethyl 1,2-dihydro-1-phenyl-2-propylpyridine, also in a mixture with one another.
  • tertiary amines such as triethylamine
  • dialkylarylamines such as N, N-dimethyl-p-toluidine and N, N-dimethylaniline
  • capped amines in the form of imines such as the imine from aniline and butanal
  • dihydropyridine derivatives such as 3,5-diethyl 1,2-dihydro-1-phenyl-2-propylpyridine, also in a mixture with one another.
  • both the reactive resin component and the hardener component may contain one or more further additives.
  • plasticizers e.g. Solvents, stabilizers, rheology aids, thixotropic agents, wetting agents, coloring additives, dispersants, emulsifiers, antioxidants, light, UV or IR stabilizers, flame retardants, adhesion promoters and leveling agents may be included.
  • Such further additives may preferably, based on the total weight of the adhesive composition, in proportions of a total of 0 to 50 wt .-%, preferably 0.01 to 20 wt .-%, be present.
  • fillers may optionally be present in one or more of the components.
  • customary fillers are chalk, quartz, polymer powder, glass and hollow glass spheres, corundum, talc, which may be added as powder, granules or in the form of shaped bodies, also mixed with one another.
  • the proportion of fillers based on the total weight of the adhesive composition, for example, from 0 to 80 wt .-%, preferably up to 50%.
  • the curing time of the respective adhesive partial mass can be influenced by the proportion of curing accelerator, the second composition in the fast-curing partial composition preferably having fractions of curing accelerators of from 2 to 30% by weight, based on the proportions of base resin and reactive diluent in the second composition, contains.
  • the first composition in the slower-curing adhesive sub-mass preferably contains a styrene derivative as reactive diluent, more preferably styrene.
  • the base resin is preferably an unsaturated polyester resin, a vinyl ester resin and / or a urethane (meth) acrylate resin.
  • the proportion of the curing accelerator in the first composition is preferably from 0 to 30% by weight based on the weight of the base resin and the reactive diluent in the first composition.
  • the curing time of the first adhesive submass, after admixing the hardener component to the first composition, is preferably about 0.5 to 10 minutes, more preferably 1 to 10 minutes.
  • the curing time of the second, fast-curing adhesive subassembly formed by mixing the second composition with the hardener component is preferably in the range of 1 to 30 seconds.
  • the weight ratio of reactive resin component to hardener component is about 1: 1 to 10: 1, preferably 3: 1 to 5: 1.
  • the weight ratio of the first composition and the second composition in the reactive resin component is preferably from about 2: 1 to about 1: 2. Particularly preferably, the two compositions are present in the reactive resin component in approximately equal proportions.
  • the reactive resin component such as first composition, preferably a styrene derivative as a reactive diluent, more preferably styrene, preferably in a proportion of 0.05 to 70 weight percent, based on total weight of base resin and reactive diluent in the further composition.
  • the base resin is preferably an unsaturated polyester resin, a vinyl ester resin and / or a urethane (meth) acrylate resin, and is preferably in an amount of 30 to 99.95% by weight based on total weight of the base resin and reactive diluent in the other composition.
  • the proportion of the curing accelerator in the further composition is preferably from 0 to 30 wt .-%, based on the weight of base resin and reactive diluent in the further composition.
  • Essentially identical formulations may be used for the first composition and the further polymerizable composition, the rheological properties of the further composition being optionally adjusted using further additives, such as binders or thixotropic agents, according to their function as leakage protection.
  • the further polymerizable composition provided as leakage protection at the end of the film bag is present in the reactive resin component in a volume fraction of from 2 to 30 percent, based on the total volume of hardener component and reactive resin component.
  • the exact amount of the further polymerizable composition will be determined by those skilled in the art due to the geometry of the adhesive package and the rheological properties of the second composition. For example, wider film pouches as well as low viscosity settings of the fast-setting second composition will require a greater amount of the further composition.
  • the further polymerizable composition is used in such a small amount that the function of the fast-curing adhesive part mass is not impaired to provide a sufficient initial strength.
  • the tubular film bag of the adhesive package according to the invention is advantageously formed from a multi-layer film tailored to the chemical properties of the components of the adhesive composition.
  • all components of the adhesive composition are arranged in a common tubular film bag.
  • the film bag is advantageously formed from a sheet material, which is folded to form the required number of chambers and welded accordingly.
  • the hardener component and the reactive resin component of the adhesive composition are preferably arranged in separate chambers of the film bag.
  • the hardener component and the reactive resin component are each arranged in a continuous chamber of the film bag, which extends from one end of the film bag to the other end.
  • the separation of the various compositions of the reactive resin component is preferably carried out by a suitable adjustment of their rheological properties, in particular by selecting a base resin of suitable viscosity and adjusting the proportion of reactive diluents and optionally by adding further additives such as Tixotropierstoff and binder.
  • a suitable adjustment of their rheological properties in particular by selecting a base resin of suitable viscosity and adjusting the proportion of reactive diluents and optionally by adding further additives such as Tixotropierstoff and binder.
  • the adhesive package of the invention is preferably suitable for use with a chemical anchoring attachment.
  • This anchoring element may be self-drilling or non-self-drilling.
  • the adhesive package When used with non-self-drilling anchoring elements, the adhesive package is placed in a prefabricated wellbore such that the second composition faces the bottom of the wellbore. Subsequently, the anchoring element is inserted into the borehole and cuts the adhesive pack, so that the hardener component and the reactive resin component emerge and provide at least two different fast curing adhesive component masses.
  • the fastening element is a self-drilling rock anchor, which can be configured as a passive anchor or as an active anchor.
  • the fastening element which is already partially anchored in the substrate via the rapidly curing adhesive sub-mass can be pretensioned almost directly after the complete pressing out of the adhesive mass by means of a pretensioning element. Due to the time-delayed post-curing of the slowly or moderately reactive first adhesive sub-mass in the prestressed area, the bias of the fastener is chemically fixed.
  • the drill motor and the ejection unit can be removed immediately after the complete application of the adhesive mass and a next fastening element can be set, since at least a partial anchoring of the fastening element is achieved immediately after the complete pressing out of the adhesive mass.
  • the invention thus also relates to a fastening element for chemical anchoring in a substrate, comprising a receiving body for an extrudable adhesive mass, wherein a drill head is provided at one end of the receiving body, and an adhesive package according to the invention introduced into the receiving body, wherein the adhesive pack is arranged in the receiving body in that the first composition is adjacent to the drill bit and the second composition is adjacent to an end of the fastener opposite the bit.
  • the adhesive mass After the complete pressing out of the adhesive mass, at least two different rapidly curing partial compositions are present.
  • the first effluent by mixing the hardener component and the first composition
  • the resulting adhesive subassembly cures at a moderate speed and ensures the subsequent flow of the second adhesive subassembly, which is formed by mixing the hardener component and the second composition.
  • the second partial mass flowing out after the first partial adhesive composition cures faster than the first partial composition and advantageously immediately. This ensures that the fastener is anchored quickly and safely in the ground, the fast-curing adhesive sub-mass comes to rest in the area of the bottom of the hole, whereby an advantageous force is ensured in the ground.
  • the fastening elements according to the invention can be set independently of the temperature of the substrate, with which the fastening element according to the invention can be used flexibly, in particular in tunnels or tunnels. Normally, hardening compounds are used on cold surfaces and slowly hardening compounds on hot or warm surfaces. Since the fastening element according to the invention has at least two different adhesive fast curing adhesive masses, a secure anchoring of the fastener is guaranteed in different substrates.
  • Fig. 1 shown self-drilling fastener 11 here in the form of a rock anchor, has a hollow cylindrical receiving body 12, at a first, lying in the direction S end 13 a drill head 16 and at the opposite end 14 a rotary driving means 15, z. B. in the form of a detachable with a drill, not shown here, polygon.
  • the drill head 16 has a first central passage opening 17 and two further radial passage openings 19. Further, a funnel-shaped, tapered to the free end of the drill head 16 receptacle 18 is provided in the drill head 16.
  • the adhesive package 20 according to the invention comprises a tubular film bag 23 for receiving a multi-component adhesive composition 26.
  • the opposite ends of the film bag 23 are each tied with a metal wire 22 and closed.
  • the multicomponent mass 26 of the adhesive pack 20 comprises a reactive resin component 28 and a hardener component 27, which are stored in separate chambers and cure in the mixed state.
  • the hardener component 27 is provided in a first chamber 24 of the film bag 23 running in the longitudinal direction of the film bag 23.
  • the reactive resin component 28 is provided in a second chamber 25 of the film bag 23 running parallel to the first chamber 24 and comprises at least a first composition 29 and a second composition 30 different from the first composition 29.
  • the first composition 29 and the second composition 30 are arranged one behind the other in the continuous, extending from one end to the other end of the film bag 23 second chamber 25 of the film bag 23. Between the first composition 29 and the second composition 30, a dividing wall 33 that advantageously opens easily under pressure can be provided. However, the rheological properties of the compositions 29, 30 are preferably adjusted in such a way that stable flow limits are formed in the storage state, which prevent mixing.
  • a polymerizable composition 40 is arranged on one of the first composition 29 opposite end 32 of the film bag 23, which hardens more slowly than the second composition 30.
  • the further polymerizable composition 40 is in terms of their rheological properties so set to provide leakage protection for the second composition 30 and / or the hardener component 27.
  • the first composition 29 and the further polymerizable composition 40 may advantageously have the same formulation.
  • other additives such as binders and Tixotropierstoff the other composition can be optimally adapted to the function as leakage protection.
  • the hardener component 27 preferably contains a peroxide, preferably dibenzoyl peroxide.
  • reactive resin component 28 preference is given to using compositions having at least one olefinically unsaturated base resin, a reactive diluent and a curing accelerator.
  • Examples of the base resin are vinyl ester resins, urethane (meth) acrylate resins and unsaturated polyester resins.
  • Suitable curing accelerators are tertiary amines such as triethylamine, dialkylarylamines such as N, N-dimethyl-p-toluidine and N, N-dimethylaniline, capped amines in the form of imines such as the aniline and butanal imine, and dihydropyridine derivatives, also mixed with one another.
  • metal salts such as Cu, Co, Mn, Sn and Ce salts, for example, copper octanoate or cobalt octanoate, can be used as curing accelerators which catalyze the decomposition of peroxides.
  • the base resin is preferably a vinyl ester resin.
  • the adhesive pack 20 is inserted into the receiving body such that the second composition 30 is arranged in the setting direction S behind the first composition 29.
  • the fastener 11 is, as in Fig. 3 shown as a whole with a drilling / Auspresstechnik, not shown here, which can be coupled to the rotary driving means 15 of the receiving body 12, drilled into the substrate 6.
  • the squeezing piston 36 After reaching the desired drilling depth of the squeezing piston 36, for example by means of water pressure is applied via the squeezing unit, wherein first the mixing element 31 is pushed in the direction of the drill head 16 until the free end of the mixing element 31 comes to rest in the receptacle 18 of the drill head 16 , Upon further pressurization of the extrusion piston 36, the adhesive mass 26 flows out of the fastening element 11 with the mixing of the hardener component 27 and the reactive resin component 28 through the passage openings 17 and 19 in the drill head 16.
  • the slow-curing part mass 41 of the hardener component 27 and the first composition 29 flows first from the fastening element 11th and fills the gap between the outer wall of the receiving body 12 and the borehole wall 7 from the bottom of the hole.
  • the subsequently flowing out second partial mass 42 of the hardener component 27 and the second composition 30, which hardens faster, displaces the first part mass 41 further in the direction of the second end 14 of the receiving body 12. Since the second part mass 42 cures quickly in a few minutes, the fastening element 11 anchored after pressing the adhesive mass 26 in the area of the borehole bottom and sufficiently resilient. After the time-delayed curing of the first part of the mass 41, the fastener 11 is completely anchored in the ground 6.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP12154602.2A 2011-03-23 2012-02-09 Emballage adhésif et son utilisation à l'aide d'un élément d'ancrage Withdrawn EP2503097A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011005960A DE102011005960A1 (de) 2011-03-23 2011-03-23 Klebstoffpackung und deren Verwendung mit einem Verankerungselement

Publications (2)

Publication Number Publication Date
EP2503097A2 true EP2503097A2 (fr) 2012-09-26
EP2503097A3 EP2503097A3 (fr) 2017-10-11

Family

ID=45655483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12154602.2A Withdrawn EP2503097A3 (fr) 2011-03-23 2012-02-09 Emballage adhésif et son utilisation à l'aide d'un élément d'ancrage

Country Status (6)

Country Link
US (1) US8920087B2 (fr)
EP (1) EP2503097A3 (fr)
AU (1) AU2012201714A1 (fr)
CA (1) CA2772449A1 (fr)
DE (1) DE102011005960A1 (fr)
ZA (1) ZA201202113B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115897569A (zh) * 2022-11-29 2023-04-04 成都理工大学 一种基于镍钛记忆合金的可回收预应力锚索组件

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321126B (zh) * 2016-11-01 2019-04-09 赵华山 一种长树脂锚固剂封装结构
MX2020002620A (es) 2017-09-08 2020-10-01 Dywidag Systems International Pty Ltd Sistema de encapsulación y método de instalación de un perno de roca.
EP3805577A1 (fr) 2019-10-11 2021-04-14 Hilti Aktiengesellschaft Emballage filiforme
CN110985080B (zh) * 2019-11-25 2021-06-04 辽宁工程技术大学 一种用于冲击地压巷道的锚固剂药卷及其锚固方法
US11274695B2 (en) * 2020-01-14 2022-03-15 Eve Ventures Llc Expanding, anchoring screw
EP3851423A1 (fr) * 2020-01-14 2021-07-21 Hilti Aktiengesellschaft Utilisation de mélanges de résine réactive à polarité prédéfinie pour ajuster la robustesse d'une composition de mortier ainsi que procédé de réglage de la robustesse d'une composition de mortier
US20240344457A1 (en) * 2021-08-20 2024-10-17 Mohlalefi (Pty) Ltd Anchor Arrangement
CN116174778B (zh) * 2023-04-19 2025-06-17 宁波市锦泰橡塑有限公司 一种钻铣一体刀具

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4303354A (en) 1979-03-28 1981-12-01 Peabody Coal Company Mine roof bolting
US4518283A (en) 1982-07-16 1985-05-21 Hilti Aktiengesellschaft Hardenable synthetic resin composition and its use
DE4231161A1 (de) 1992-09-17 1994-03-24 Hilti Ag Mörtel und Vorrichtung zur Befestigung von Verankerungsmitteln in Bohrlöchern
DE102009002951A1 (de) 2009-05-08 2010-11-11 Hilti Aktiengesellschaft Selbstbohrendes Befestigungselement

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USRE25869E (en) * 1965-10-05 Method of fixing anchor bolts in the drill holes
AT224588B (de) * 1960-01-20 1962-11-26 Becorit Grubenausbau Gmbh Patrone für einen insbesondere im untertägigen Grubenbetrieb zu verwendenden Ankerausbau
US4007831A (en) * 1973-06-19 1977-02-15 Frederick William Bernhardt Cartridges containing self-setting mixes
US4372708A (en) * 1980-08-28 1983-02-08 General Electric Company Resin capsule and method for grouting anchor elements in holes of various lengths
US4497403A (en) * 1983-06-24 1985-02-05 Celtite, Inc. Cartridge containing multiple areas of a multi-component mix and method of making the same
DE3416094A1 (de) * 1984-04-30 1985-10-31 Hilti Ag, Schaan Zerstoerbare patrone fuer mehrkomponenten-massen
DE3442383A1 (de) * 1984-11-20 1986-06-19 Hilti Ag, Schaan Zerstoerbare verankerungspatrone
DE4233429A1 (de) * 1992-10-05 1994-04-07 Basf Ag Patrone oder Kartusche für die chemische Befestigungstechnik
DE4304620A1 (de) 1993-02-16 1994-08-18 Fischer Artur Werke Gmbh Verankerungspatrone
JP3141353B2 (ja) * 1995-09-25 2001-03-05 前田工繊株式会社 アンカー固着用カプセル
CA2605208A1 (fr) * 2007-03-09 2008-09-09 Agnico-Eagle Mines Limited Ensemble de boulon d'ancrage
US7775745B2 (en) * 2009-01-20 2010-08-17 J-Lok Co. Anchoring systems and methods of use thereof

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US4303354A (en) 1979-03-28 1981-12-01 Peabody Coal Company Mine roof bolting
US4518283A (en) 1982-07-16 1985-05-21 Hilti Aktiengesellschaft Hardenable synthetic resin composition and its use
DE4231161A1 (de) 1992-09-17 1994-03-24 Hilti Ag Mörtel und Vorrichtung zur Befestigung von Verankerungsmitteln in Bohrlöchern
DE102009002951A1 (de) 2009-05-08 2010-11-11 Hilti Aktiengesellschaft Selbstbohrendes Befestigungselement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115897569A (zh) * 2022-11-29 2023-04-04 成都理工大学 一种基于镍钛记忆合金的可回收预应力锚索组件

Also Published As

Publication number Publication date
ZA201202113B (en) 2013-02-27
EP2503097A3 (fr) 2017-10-11
US20120282059A1 (en) 2012-11-08
US8920087B2 (en) 2014-12-30
CA2772449A1 (fr) 2012-09-23
DE102011005960A1 (de) 2012-09-27
AU2012201714A1 (en) 2012-10-11

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