CN110144184A - Epoxy structural rubber is used in a kind of bridge subsection splicing under low temperature environment - Google Patents
Epoxy structural rubber is used in a kind of bridge subsection splicing under low temperature environment Download PDFInfo
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- CN110144184A CN110144184A CN201811195471.7A CN201811195471A CN110144184A CN 110144184 A CN110144184 A CN 110144184A CN 201811195471 A CN201811195471 A CN 201811195471A CN 110144184 A CN110144184 A CN 110144184A
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- Prior art keywords
- modified
- low temperature
- parts
- bridge
- structural rubber
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
A kind of bridge subsection splicing epoxy structural rubber under low temperature environment, constituent include modified bisphenol A resin 126,711 modified epoxies, bisphenol F epoxy resin, modified fatty amine curing agent, modified alicyclic ring amine hardener, reactive diluent, toughener, silane coupling agent and silicon powder；The bridge subsection splicing is made of with epoxy structural rubber component A and B component.The Applicable temperature range of such epoxy structural rubber is -15~5 DEG C, use temperature range is -45~60 DEG C after solidification, and there is good thixotropy, both construction technology performance requirement of the structure glue to the operating time had been met, the mechanical property requirements of early strength are met again, and can satisfy low temperature resistant requirement, for the splicing for needing the requirement in winter low temperature area that can be widely used in prefabricated subsection matching method construction bridge.
Description
Technical field
The present invention relates to bridge subsection splicing field, ring is used in the bridge subsection splicing under especially a kind of low temperature environment
Oxide structure glue.
Background technique
Domestic bridge construction develops to prefabricated, batch production, enlarged direction at present.It is matched using prefabricated subsection
Method construction bridge is the construction method that current bridge construction is widelyd popularize, and this construction method is fast with speed of application, construction accounts for
The advantages that ground area is few, box beam concrete is shunk, the linear variation of beam body is smaller after small and completion of creeping.
Different according to erection method between bridge subsection assembly method bridge subsection, precast segment bridge assembly method can be divided into dry
It connects, wet connect and be glued three kinds of assembled engineering methods.Wherein due to stem grafting engineering method after the completion of bridge construction holistic resistant behavior and anti-
There are major defect, interim modification AASHTO " design of sectional type concrete-bridge and construction guide specifications " in 2003 for shock stability
It is middle to determine that newly-built precast segment assembly bridge will not be used stem grafting form.Wet seam connection: with cast-in-place concrete by precast beam
It connects, certain tensile capacity is provided；Be glued: using generated on conjunction plane mechanical bonding force, physical absorption power and
Chemical bonding and the process for connecting two bonded parts.In the nineties, Bridges in Our Country splicing is mainly with wet
Based on assembling technique, as the development of the finite element technique of bridge technology design in recent years, new type domestic bridge subsection splice glue material
Material research and development are born, high performance concrete component it is prefabricated, and accurately testing inspection and high-precision measurement such as control at the technologies
Development, the technology that precast segment bonded process builds bridge obtains further scale and promotes.For wet process assembly engineering method,
The cementing assembled maximum feature for building bridge is exactly to be connected using epoxy resin splicing glue instead of concrete in terms of joint treatment
It connects, while needing to load interim prestressing force before epoxy resin splices adhesive curing, when removing interim prestressed, should ensure that
It is principle that entire construction stage seam, which does not occur tensile stress,.
The selection of binder should follow quality assurance, easy to operate, low-cost principle.It is i.e. full in every mechanical index
Under conditions of foot requires, preferential selection meets the product of this engineering construction process needs, while should take into account construction cost.From applying
For work angle, high thixotropic, suitable validity period and durability are the most important indexs for judging binder product.
Such binder part external product is more early due to starting to walk currently on the market, relatively mature, such as Switzerland's west card.
Domestic common epoxy resin construction structure glue, in operation between, early strength and thixotropy etc. can also meet simultaneously
Technique requirement, but matured product is few, and product quality is very different.And product is mostly conventional product at use temperature,
That is operated in -5-40 DEG C of temperature ranges, the use temperature after solidification be -45-60 DEG C, and northern China winter temperature most
It is low to can reach -20~-10 DEG C, therefore conventional products are not able to satisfy under domestic northern some areas lower temperature to splicing glue low temperature
The requirement of use environment.For the present situation of domestic such bonding agent at present, inventing one kind can make the present invention at low ambient temperatures
Bridge subsection splicing epoxy structural rubber meets the market demand of domestic such product with this.
The temperature sensitivity of epoxy resin directly results in strengthening construction and is restricted, and it is often necessary to build reinforcing
Certain timeliness is deferred to, therefore, for special environment, it should there is special structure glue to support.Low-temperature structural adhesive, just
Be it is a kind of specially in low temperature environment construction usage structure glue, stable physical property can be kept in -15 DEG C of low temperature,
Being truly realized normal cure does not influence to construct.Bridge jointing is -5-40 DEG C with the general Applicable temperature of binder currently on the market,
Belong to the epoxy structural rubber that ordinary temperature uses, and in the north some winters cold place, temperature is lower, conventional bridge jointing glue
It is difficult to meet the related request of the mechanical property and processing performance in FIP, therefore is more than the normal use temperature of general structure glue
Range is not able to satisfy the construction process requirement of winter bridge jointing.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the bridge subsection that the present invention is provided under a kind of low temperature environment is spelled
It connects and uses epoxy structural rubber, the Applicable temperature range of such epoxy structural rubber is -15~5 DEG C, and use temperature range is -45 after solidification
~60 DEG C, and there is good thixotropy, construction technology performance requirement of the structure glue to the operating time was not only met, but also meet
The mechanical property requirements of early strength, and can satisfy low temperature resistant requirement, for the use for needing winter low temperature area
It is required that the splicing of prefabricated subsection matching method construction bridge can be widely used in.
The technical solution adopted by the present invention to solve the technical problems is: the bridge subsection under a kind of low temperature environment, which splices, to be used
Epoxy structural rubber, constituent include modified bisphenol A resin 126,711 modified epoxies, bisphenol F epoxy resin, modification
Fatty amine curing agent, modified alicyclic ring amine hardener, reactive diluent, toughener, silane coupling agent and silicon powder；The bridge section
Section splicing is made of with epoxy structural rubber component A and B component.The composition of component A and B component is as follows:
The composition of A is as follows: 126 30~50 parts of epoxy resin；711 10~20 parts of modified epoxies；Bisphenol F epoxy resin
5~10 parts；3~10 parts of reactive diluent；1~3 part of toughener；1~10 part of silane coupling agent；1~10 part of thixotropic agent；Silicon powder
100~150 parts.
The composition of B is as follows: 10~20 parts of modified fatty amine curing agent；Modified 10~30 parts of alicyclic ring amine hardener；Thixotropic agent
0.5~2 part；1~5 part of silane coupling agent；50~80 parts of silicon powder.
The present invention also has following additional technical feature:
It advanced optimizes, the constituent of the epoxy structural rubber includes the modified ring of modified bisphenol A resin 126,711
Oxygen resin, bisphenol F epoxy resin, modified fatty amine curing agent, modified alicyclic ring amine hardener, reactive diluent, toughener, silane
Coupling agent, white carbon black and silicon powder.
It advanced optimizes, the ratio of the component A and the B component is 2:1.
The present invention compared to the prior art, the advantage is that: the bridge subsection splicing epoxy knot under a kind of low temperature environment
Structure glue, in low temperature -15~5 DEG C in use, can normal cure, and be able to satisfy splicing glue construction related request, that is, providing
Time complete prestressed stretch-draw and subsequent working procedure.Sample is conserved 7 days and is tested, and each index intensity can reach
The national standard and FIP associated specifications of GB50728-2011 (see Table 1 for details).When in use, meet prefabricated subsection matching method
The prerequisite condition of splicing institute of bridge is built, and substantially increases temperature applicable range.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Specific embodiment
It is described in more detail below exemplary embodiment disclosed by the invention, these embodiments are to be able to more thoroughly
Understand the present invention, and range disclosed by the invention can be fully disclosed to those skilled in the art.Although showing
Exemplary embodiment disclosed by the invention, it being understood, however, that the present invention and should not be limited by the embodiments set forth herein.
A kind of bridge subsection splicing epoxy structural rubber under low temperature environment, constituent includes modified bisphenol A resin
126,711 modified epoxies, bisphenol F epoxy resin, modified fatty amine curing agent, modified alicyclic ring amine hardener, activity dilution
Agent, toughener, silane coupling agent and silicon powder；The bridge subsection splicing is made of with epoxy structural rubber component A and B component.
The composition of component A and B component is as follows:
The composition of A is as follows: 126 30~50 parts of epoxy resin；711 10~20 parts of modified epoxies；Bisphenol F epoxy resin
5~10 parts；3~10 parts of reactive diluent；1~3 part of toughener；1~10 part of silane coupling agent；1~10 part of thixotropic agent；Silicon powder
100~150 parts.
The composition of B is as follows: 10~20 parts of modified fatty amine curing agent；Modified 10~30 parts of alicyclic ring amine hardener；Thixotropic agent
0.5~2 part；1~5 part of silane coupling agent；50~80 parts of silicon powder.
The ratio of the component A and the B component is 2:1.
The constituent of the epoxy structural rubber includes modified bisphenol A resin 126,711 modified epoxies, Bisphenol F
Epoxy resin, modified fatty amine curing agent, modified alicyclic ring amine hardener, reactive diluent, toughener, silane coupling agent, hard charcoal
Black and silicon powder.
Table 1 splices glue performance parameter
The present invention has already passed through experiment, simulation, use, and prove it is feasible, as a result well, phenomenon without exception.
Bridge subsection splicing epoxy structural rubber under low temperature environment, in low temperature -15~5 DEG C in use, can normally consolidate
Change, and be able to satisfy the related request of splicing glue construction, i.e., completes prestressed stretch-draw and subsequent construction work in the defined time
Sequence.Sample is conserved 7 days and is tested, and each index intensity can reach the national standard and FIP the relevant technologies of GB50728-2011
It is required that (see Table 1 for details).When in use, meet the prerequisite condition of splicing institute of prefabricated subsection matching method construction bridge, and big
Temperature applicable range is improved greatly.
Bridge subsection splicing epoxy structural rubber under low temperature environment has widened making for splicing glue by the selection of former material
With temperature range, by the promotion of processing performance under the conditions of low temperature -15~5 DEG C and mechanical property, guaranteeing it, part is low in winter
The box beam in warm area splices normal construction, while also greatly improving construction efficiency, there is domestic splicing glue in low temperature use aspect
It is broken through, preferably forms competitive advantage with foreign brand name.
Although the various embodiments described above are described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications can be made to these embodiments, so the above description is only an embodiment of the present invention,
It is not intended to limit scope of patent protection of the invention, it is all to utilize equivalent structure or equivalent process made by description of the invention
Transformation, be applied directly or indirectly in other relevant technical fields, similarly include scope of patent protection of the invention it
It is interior.
Claims (3)
1. the bridge subsection splicing epoxy structural rubber under a kind of low temperature environment, which is characterized in that constituent includes modification
Bisphenol a resin 126,711 modified epoxies, bisphenol F epoxy resin, modified fatty amine curing agent, modified alicyclic ring amine hardener,
Reactive diluent, toughener, silane coupling agent and silicon powder；The bridge subsection splicing epoxy structural rubber is by component A and B group
It is grouped as；The composition of component A and B component is as follows:
The composition of A is as follows: 126 30~50 parts of epoxy resin；711 10~20 parts of modified epoxies；Bisphenol F epoxy resin 5~
10 parts；3~10 parts of reactive diluent；1~3 part of toughener；1~10 part of silane coupling agent；1~10 part of thixotropic agent；Silicon powder 100
~150 parts；
The composition of B is as follows: 10~20 parts of modified fatty amine curing agent；Modified 10~30 parts of alicyclic ring amine hardener；Thixotropic agent 0.5~
2 parts；1~5 part of silane coupling agent；50~80 parts of silicon powder.
2. the bridge subsection splicing epoxy structural rubber under low temperature environment according to claim 1, which is characterized in that described
The ratio of component A and the B component is 2:1.
3. the bridge subsection splicing epoxy structural rubber under low temperature environment according to claim 1, which is characterized in that described
The constituent of epoxy structural rubber includes modified bisphenol A resin 126,711 modified epoxies, bisphenol F epoxy resin, modification
Fatty amine curing agent, modified alicyclic ring amine hardener, reactive diluent, toughener, silane coupling agent, white carbon black and silicon powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195471.7A CN110144184A (en) | 2018-10-15 | 2018-10-15 | Epoxy structural rubber is used in a kind of bridge subsection splicing under low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195471.7A CN110144184A (en) | 2018-10-15 | 2018-10-15 | Epoxy structural rubber is used in a kind of bridge subsection splicing under low temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110144184A true CN110144184A (en) | 2019-08-20 |
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ID=67588351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195471.7A Withdrawn CN110144184A (en) | 2018-10-15 | 2018-10-15 | Epoxy structural rubber is used in a kind of bridge subsection splicing under low temperature environment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371627A (en) * | 2014-11-17 | 2015-02-25 | 卡本复合材料（天津）有限公司 | Low-temperature anti-crystalized structural adhesive and preparation method thereof |
| CN106010407A (en) * | 2016-06-02 | 2016-10-12 | 北京中德新亚建筑技术有限公司 | High-thixotropy modified epoxy resin steel sticking glue |
| CN106281169A (en) * | 2016-08-26 | 2017-01-04 | 中交第二航务工程局有限公司 | It is applied to the structure glue of precast segment assembly bridge |
| WO2017078449A1 (en) * | 2015-11-06 | 2017-05-11 | 주식회사 케이씨씨 | Two liquid type epoxy adhesive composition |
| CN106833474A (en) * | 2017-02-28 | 2017-06-13 | 卡本复合材料（天津）有限公司 | A kind of low temperature resistive connection crystalline substance epoxy structural rubber and preparation method thereof |
-
2018
- 2018-10-15 CN CN201811195471.7A patent/CN110144184A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371627A (en) * | 2014-11-17 | 2015-02-25 | 卡本复合材料（天津）有限公司 | Low-temperature anti-crystalized structural adhesive and preparation method thereof |
| WO2017078449A1 (en) * | 2015-11-06 | 2017-05-11 | 주식회사 케이씨씨 | Two liquid type epoxy adhesive composition |
| CN106010407A (en) * | 2016-06-02 | 2016-10-12 | 北京中德新亚建筑技术有限公司 | High-thixotropy modified epoxy resin steel sticking glue |
| CN106281169A (en) * | 2016-08-26 | 2017-01-04 | 中交第二航务工程局有限公司 | It is applied to the structure glue of precast segment assembly bridge |
| CN106833474A (en) * | 2017-02-28 | 2017-06-13 | 卡本复合材料（天津）有限公司 | A kind of low temperature resistive connection crystalline substance epoxy structural rubber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 何宏伟: "《碳纤维/环氧树脂复合材料改性处理》", 30 November 2014, 国防工业出版社 * |
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Application publication date: 20190820 |