CN101570675A - Delayed coagulation adhesive used for retard-bonded prestressed tendon - Google Patents
Delayed coagulation adhesive used for retard-bonded prestressed tendon Download PDFInfo
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- CN101570675A CN101570675A CNA2009100869497A CN200910086949A CN101570675A CN 101570675 A CN101570675 A CN 101570675A CN A2009100869497 A CNA2009100869497 A CN A2009100869497A CN 200910086949 A CN200910086949 A CN 200910086949A CN 101570675 A CN101570675 A CN 101570675A
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Abstract
The invention relates to a delayed coagulation adhesive used for retard-bonded prestressed tendon, comprising the components: 100 parts by weight of bisphenol-A type epoxide resin, 20-80 parts by weight of reactive diluent dihydric alcohol diglycidyl ether, 5-20 parts by weight of non-activated thinner, 5-25 parts by weight of low molecular weight polyamide resin curing agent, 0.1-5 parts by weight of thixotropic agent, 50-100 parts by weight of cement and 50-100 parts by weight of calcium carbonate. After being processed by an outer pack PE extrusion device, the delayed coagulation adhesive has no phenomenon of drippage and can be still evenly coated and wrapped around a steel stranded wire.
Description
Technical field
The present invention relates to the slow setting tackiness agent that a kind of delayed bonding prestressed tendon is used.
Background technology
Retarded adhesive prestressed technology is the comprehensive characteristic of not having bonding and two kinds of systems of bonding being arranged, improve the relative configurations pattern, coated material and preparation technology, break through traditional prestress theory comprehensively, and independent, the complete complete set technology system of founding is that the technology of a plurality of professional domains such as material, structure, machinery is integrated.It is made up of presstressed reinforcing steel (steel strand or Steel Tendon), slow setting tackiness agent and outer coated sheath, the slow setting tackiness agent is filled between outer coated sheath and the presstressed reinforcing steel, outer coated sheath suppresses rough ripple through indentation equipment, wraps up presstressed reinforcing steel with the slow setting tackiness agent.
The slow setting adhesive material is the core of retarded adhesive prestressed technology, and whether stable can the retarded adhesive prestressed desired effects that reach depend on slow setting tackiness agent its action and efficacy of having brought into play fully.The slow setting tackiness agent is equivalent to not have the agglutinating grease-proof in earlier stage, has certain flowability and the tack good to steel, guarantee retarded adhesive prestressed steel bar in the cloth muscle of engineering construction and stretching process as simple and easy to do as the prestressing without bondn.Pass in time, the slow setting tackiness agent solidifies under the solidifying agent effect gradually, and produces cohesive force between the presstressed reinforcing steel, outsourcing PE.The slow setting tackiness agent has after completely solidified than concrete high strength more, and become one with presstressed reinforcing steel, wedge action by corrugated outer surface makes between presstressed reinforcing steel and the concrete can not slippage, reaches the adhesive property between bonded prestressed tendon and the concrete.
China Patent No. ZL 2,005 1 0132504.X disclose the tackiness agent that a kind of delayed bonding prestressed tendon is used at present, and it is made up of Resins, epoxy, thinner, solidifying agent, toughner and filler.This prescription has satisfied the requirement of retarded adhesive prestressed technology from the material angle.But, because Resins, epoxy is to the susceptibility of temperature, through outsourcing PE extrusion equipment the time, the temperature of slow setting tackiness agent reaches nearly 300 degree, the viscosity of slow setting tackiness agent obviously diminishes, the mobile increase, drippage appears in the slow setting tackiness agent, and it is inhomogeneous to cause slow setting tackiness agent being coated with on steel strand to be wrapped up in, and then influences the impression effect of outsourcing PE.
Summary of the invention
The purpose of this invention is to provide a kind of behind process outsourcing PE extrusion equipment, still can evenly being coated with and be rolled in the slow setting tackiness agent that the delayed bonding prestressed tendon on the steel strand is used.
For achieving the above object, the present invention takes following design:
The slow setting tackiness agent that a kind of delayed bonding prestressed tendon is used, it is characterized in that, it comprises: bisphenol-A type Resins, epoxy 100 weight parts, reactive thinner dibasic alcohol diglycidylether 20～80 weight parts, non-activated thinner 5～20 weight parts, solidifying agent low molecule pa resin 5～25 weight parts, thixotropic agent 0.1～5 weight part, cement 50～100 weight parts and lime carbonate 50～100 weight parts.
The epoxy equivalent (weight) of described bisphenol-A type Resins, epoxy is between 180～250 gram/equivalents.
The molecular weight of described low molecule pa resin is 600 to 900.
Described non-activated thinner is dibutyl phthalate (DBP) or phenylformic acid one condensed ethandiol ester.
Described thixotropic agent is thermal silica or organobentonite.
Advantage of the present invention is:
1, the slow setting tackiness agent used of delayed bonding prestressed tendon of the present invention has used thixotropic agent, have superior stability, reinforcement, thickening property, thixotropy and antisolvent precipitation performance, can effectively improve the susceptibility of slow setting tackiness agent to temperature, make slow setting tackiness agent of the present invention little in the temperature current downflow difference that is less than or equal to 300 ℃, thereby guaranteed that the slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand, and then gives security for the impression effect of outsourcing PE.
2, the slow setting tackiness agent used of delayed bonding prestressed tendon of the present invention wherein uses as filler jointly with cement and lime carbonate.Because it is the proportion of cement is bigger,, especially more obvious when temperature is higher than 150 ℃ if, be easy to generate layering though all adopt cement can reduce the cost of product as filler.Use as filler jointly with the mixture of certain proportion blended cement and lime carbonate and can further improve this phenomenon.
Embodiment
Embodiment 1
With the bisphenol-A type Resins, epoxy of 100 kilograms epoxy equivalent (weight)s between 180～250 gram/equivalents, 20 kilograms dibasic alcohol diglycidylether, 10 kilograms dibutyl phthalate (DBP), 5 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 0.1 kilogram thermal silica, 50 kilograms cement and the 50 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Embodiment 2
With the bisphenol-A type Resins, epoxy of 100 kilograms epoxy equivalent (weight)s between 180～250 gram/equivalents, 80 kilograms dibasic alcohol diglycidylether, 5 kilograms dibutyl phthalate (DBP), 25 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 5 kilograms organobentonite, 80 kilograms cement and the 100 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Embodiment 3
With the bisphenol-A type Resins, epoxy of 100 kilograms epoxy equivalent (weight)s between 180～250 gram/equivalents, 60 kilograms dibasic alcohol diglycidylether, 20 kilograms dibutyl phthalate (DBP), 15 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 3 kilograms thermal silica, 100 kilograms cement and the 80 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Embodiment 4
With the bisphenol-A type Resins, epoxy of 100 kilograms epoxy equivalent (weight)s between 180～250 gram/equivalents, 20 kilograms dibasic alcohol diglycidylether, 10 kilograms phenylformic acid one condensed ethandiol ester, 5 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 0.1 kilogram organobentonite, 50 kilograms cement and the 50 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Embodiment 5
With the bisphenol-A type Resins, epoxy of 100 kilograms epoxy equivalent (weight)s between 180～250 gram/equivalents, 80 kilograms dibasic alcohol diglycidylether, 5 kilograms phenylformic acid one condensed ethandiol ester, 25 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 5 kilograms thermal silica, 80 kilograms cement and the 100 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Embodiment 6
With 100 kilograms bisphenol-A type Resins, epoxy, 60 kilograms dibasic alcohol diglycidylether, 20 kilograms phenylformic acid one condensed ethandiol ester, 15 kilograms molecular weight is the lime carbonate of 600 to 900 low molecule pa resins, 3 kilograms organobentonite, 100 kilograms cement and the 80 kilograms formation mashed prod that stirs, to make it slough bubble in the above-mentioned mashed prod input three-roller again, get the slow setting tackiness agent that delayed bonding prestressed tendon of the present invention is used after the ground and mixed.This slow setting tackiness agent drip phenomenon do not occur after through outsourcing PE extrusion equipment, the slow setting tackiness agent still can evenly be coated with and be rolled on the steel strand.
Claims (6)
1, the slow setting tackiness agent used of a kind of delayed bonding prestressed tendon, it is characterized in that, it comprises: bisphenol-A type Resins, epoxy 100 weight parts, reactive thinner dibasic alcohol diglycidylether 20～80 weight parts, non-activated thinner 5～20 weight parts, solidifying agent low molecule pa resin 5～25 weight parts, thixotropic agent 0.1～5 weight part, cement 50～100 weight parts and lime carbonate 50～100 weight parts.
2, the slow setting tackiness agent used of delayed bonding prestressed tendon as claimed in claim 1 is characterized in that the epoxy equivalent (weight) of described bisphenol-A type Resins, epoxy is between 180～250 gram/equivalents.
3, the slow setting tackiness agent used of delayed bonding prestressed tendon as claimed in claim 1 is characterized in that the molecular weight of described low molecule pa resin is 600 to 900.
4, the slow setting tackiness agent of using as claim 1 or 2 or 3 described delayed bonding prestressed tendons is characterized in that described non-activated thinner is dibutyl phthalate (DBP) or phenylformic acid one condensed ethandiol ester.
5, the slow setting tackiness agent of using as claim 1 or 2 or 3 described delayed bonding prestressed tendons is characterized in that described thixotropic agent is thermal silica or organobentonite.
6, the slow setting tackiness agent used of delayed bonding prestressed tendon as claimed in claim 4 is characterized in that described thixotropic agent is thermal silica or organobentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100869497A CN101570675A (en) | 2009-06-11 | 2009-06-11 | Delayed coagulation adhesive used for retard-bonded prestressed tendon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100869497A CN101570675A (en) | 2009-06-11 | 2009-06-11 | Delayed coagulation adhesive used for retard-bonded prestressed tendon |
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| Publication Number | Publication Date |
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| CN101570675A true CN101570675A (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100869497A Pending CN101570675A (en) | 2009-06-11 | 2009-06-11 | Delayed coagulation adhesive used for retard-bonded prestressed tendon |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214436A (en) * | 2013-03-29 | 2013-07-24 | 青岛俪徕精细化工有限公司 | Long carbon chain glycol diglycidyl ether and preparation method thereof |
| CN103320071A (en) * | 2013-06-28 | 2013-09-25 | 上海悍马建筑科技有限公司 | Modified epoxy transparent crack sealing compound |
| CN107216838A (en) * | 2017-06-20 | 2017-09-29 | 大连凯华新技术工程有限公司 | A kind of bisphenol A epoxide resin class heat-resistant building structure adhesive |
| CN109988531A (en) * | 2017-12-29 | 2019-07-09 | 西安增材制造国家研究院有限公司 | SLA die surface step patching material and preparation method thereof |
| CN110821046A (en) * | 2019-11-20 | 2020-02-21 | 北京市建筑工程研究院有限责任公司 | Slow-bonding prestressed tendon and preparation method thereof |
| CN110845979A (en) * | 2019-11-20 | 2020-02-28 | 北京市建筑工程研究院有限责任公司 | Modified delayed coagulation binder and preparation method thereof |
| CN113717675A (en) * | 2021-08-12 | 2021-11-30 | 河北工程大学 | Modified delayed coagulation binder |
| CN118026618A (en) * | 2024-04-15 | 2024-05-14 | 天津市辰青金属制品有限公司 | Slow adhesive and application thereof in steel bar |
-
2009
- 2009-06-11 CN CNA2009100869497A patent/CN101570675A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214436A (en) * | 2013-03-29 | 2013-07-24 | 青岛俪徕精细化工有限公司 | Long carbon chain glycol diglycidyl ether and preparation method thereof |
| CN103320071A (en) * | 2013-06-28 | 2013-09-25 | 上海悍马建筑科技有限公司 | Modified epoxy transparent crack sealing compound |
| CN103320071B (en) * | 2013-06-28 | 2015-08-12 | 上海悍马建筑科技有限公司 | The transparent Crack Sealing chewing-gum of modified epoxy |
| CN107216838A (en) * | 2017-06-20 | 2017-09-29 | 大连凯华新技术工程有限公司 | A kind of bisphenol A epoxide resin class heat-resistant building structure adhesive |
| CN109988531A (en) * | 2017-12-29 | 2019-07-09 | 西安增材制造国家研究院有限公司 | SLA die surface step patching material and preparation method thereof |
| CN110821046A (en) * | 2019-11-20 | 2020-02-21 | 北京市建筑工程研究院有限责任公司 | Slow-bonding prestressed tendon and preparation method thereof |
| CN110845979A (en) * | 2019-11-20 | 2020-02-28 | 北京市建筑工程研究院有限责任公司 | Modified delayed coagulation binder and preparation method thereof |
| CN113717675A (en) * | 2021-08-12 | 2021-11-30 | 河北工程大学 | Modified delayed coagulation binder |
| CN118026618A (en) * | 2024-04-15 | 2024-05-14 | 天津市辰青金属制品有限公司 | Slow adhesive and application thereof in steel bar |
| CN118026618B (en) * | 2024-04-15 | 2024-06-07 | 天津市辰青金属制品有限公司 | Slow adhesive and application thereof in steel bar |
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Effective date of registration: 20091211 Address after: Beijing city Haidian District Xitucheng Road No. 33 post encoding: 100088 Applicant after: China Jing Ye Engineering Technology Co., Ltd. Co-applicant after: MCC Central Research Institute of Building and Construction Co., Ltd. Address before: Beijing city Haidian District Xitucheng Road No. 33 post encoding: 100088 Applicant before: China Jing Ye Engineering Technology Co., Ltd. Co-applicant before: MCC Central Research Institute of Building and Construction Co., Ltd. Co-applicant before: Wu Zhuanqin |
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Application publication date: 20091104 |