CN101798494B - Normal-temperature curing epoxy waterproof adhesive of bridge deck - Google Patents
Normal-temperature curing epoxy waterproof adhesive of bridge deck Download PDFInfo
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- CN101798494B CN101798494B CN2010101301652A CN201010130165A CN101798494B CN 101798494 B CN101798494 B CN 101798494B CN 2010101301652 A CN2010101301652 A CN 2010101301652A CN 201010130165 A CN201010130165 A CN 201010130165A CN 101798494 B CN101798494 B CN 101798494B
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Abstract
The invention relates to a normal-temperature curing epoxy waterproof adhesive of bridge deck. The adhesive is formed by mixing the mixture of group A and the mixture of group B at the weight ratio of 2:1 at normal temperature, wherein the mixture of group A is prepared by mixing the following components in parts by weight at normal temperature: 80-100 parts of epoxy resin, 10-18 parts of flexibilizer and 5-7 parts of diepoxy active diluent; and the mixture of group B is prepared by mixing the following components in parts by weight at normal temperature: 40-50 parts of curing agent, 1-2 parts of trimerization catalyst and 1-2 parts of organic epoxysiloxane H-550. The waterproof adhesive of the invention has super strong bonding capability, has stable performance within the bridge deck temperature variation range, has favourable high-temperature resistance to flow, compact and waterproof structure and certain non-deformability and has favourable chemical resistance, and the overall performance is superior to that of the waterproof bonding material of the traditional rubber asphalt bridge deck.
Description
Technical field
The present invention relates to the concrete bridge deck pavement material, relate in particular to a kind of normal-temperature curing epoxy bridge deck water-proof sticker.
Background technology
Water-proof tack coat is that decking provide a no perviousness barrier layer that prevents that moisture from getting into, and prevents reinforcement corrosion, and early stage infringement, especially shear fracture take place the layer of avoiding mating formation.This water-proof tack coat layer of also will mating formation is bonded to an integral body with decking simultaneously, give full play to the mat formation layer and the compound action of decking, has improved decking and the stressing conditions of mating formation layer, and both are complemented each other.
In recent years, along with the increase that the volume of traffic and automobile axle carry, more domestic asphalt bridge floors mat formation the layer be damaged, cause great financial loss, social repercussion is bigger, has caused people's extensive concern.In fact, big-and-middle-sized bridge quite a lot is in open to traffic less than 1 year, with regard to the damage of the layer of often mating formation.Trace it to its cause, in the deck paving design water-proof tack coat is not set or the water-proof binding effect is bad.In addition in practical application; Possibly be that design is improper or construction quality is inferior or both have concurrently, the deck paving surface layer usually the crack can occur, and water layer or waterproof effect are not bad if bridge floor shop layer dress set up defences; The water or the ice-removal salt solution that then infiltrate from surface layer will infiltrate from these cracks; Thereby cause the damage of decking, even corrosion reinforcing bar, finally cause the structural damage of bridge.
Present domestic and international many cement concrete bridges bridge structure property destruction of all having the former of aforesaid because water-proof tack coat thereby causing, thereby caused great financial loss and bad social influence.Therefore under the background of current China long-span bridge beam building cause develop rapidly, to the destruction type of deck paving water-proof tack coat, development and the experimental study of carrying out the deck paving water-proof tack coat have important practical value.
At present in deck paving, the material of making tack coat commonly used mainly contains three kinds of thermally melting matrix material, solvent-borne type sticker and heat curing-type matrix materials.
The thermally melting matrix material is made up of pitch admixture resin etc.This material has the certain deformation ability, can adapt to the effect repeatedly of the tensile stress that under traffic loading, causes owing to local deformaton, also has the excellent waterproof sealing process.Its disadvantage is that deliquescing easily at high temperature, cohesive force descend, and under the shear load effect, deck paving produces at this one deck easily and passes.
The solvent-borne type sticker generally refers to the rubber asphalt of emulsified bitumen and solubility more.Emulsified bitumen tack coat low price uses more at home.This material has the shortcoming of hot mastication, can improve its softening temperature, and can solve the defective of hot mastication to a certain extent through rationally selecting asphalt content for use through to asphalt modification.
The heat curing-type matrix material mainly contains bituminous epoxy, compares for the same two types, and no matter this material still thermostability aspect all has remarkable advantages in viscosifying power, deformability.But the subject matter that exists is that material cost is higher, and production technology is complicated, and is very high to the requirement of temperature, environment etc. during construction, is close to harsh degree.Still be used at present mainly in the mating formation of big-and-middle-sized steel bridge face.
Be pointed out that also that simultaneously at present domestic attention degree to bridge floor bonding resist still rest in the use of old product, and these old products can not adapt to the performance requriements on existing road surface not enough.Introduced the bituminous epoxy adhesive techniques in recent years and can not satisfy the needs that highway bridge construction develops far away, the better product of performance mainly still is a dependence on import.
Summary of the invention
The object of the invention just provides a kind of novel epoxy class matrix material; The moulding at normal temperatures of this matrix material; Can avoid solvent-borne type matrix material and thermally melting matrix material to be prone to the shortcoming of hot mastication, can satisfy the performance requriements of modern deck paving matrix material.It is realized through following technical scheme:
Said sticker is mixed by 2: 1 weight ratios by two groups of mixtures of first, second at normal temperatures; Said first group mixture comprises the component of following parts by weight: 80～100 parts of epoxy resin; 10～18 parts of toughner; 5～7 parts of epoxy active diluents, said components form first group mixture through mixing at normal temperatures; Said component B comprises the component of following parts by weight: 40～50 parts in solidifying agent, and 1～2 part of catalyst for trimerization, organo-siloxane coupling agent KH-5501～2 parts, said components forms second group mixture through mixing at normal temperatures;
Above-mentioned toughner be by liquid polysulfide rubber and response type epoxy toughening agent CYH-277 by 1: 10 weight ratio at normal temperatures through mixing; Above-mentioned solidifying agent is that Versamid and modified amine 593 mix by 1: 4.5 mixed weight ratio at normal temperatures.
Water-proof adhesive of the present invention has superpower viscosifying power; And stable performance in the bridge deck temperature variation range; Possesses the good high-temperature resistance to flow; Compact structure is waterproof, certain non-deformability is arranged, and has good resistance to chemical corrosion, and overall performance is superior to traditional rubber asphalt water-proof bond material for bridge deck pavement.
Embodiment
Below in conjunction with embodiment the present invention and advantage thereof are further specified.
Embodiment 1
1) preparation toughner and solidifying agent
A. toughner by liquid polysulfide rubber and response type epoxy toughening agent CYH-277 by 1: 10 weight ratio at normal temperatures through mixing.
B. solidifying agent is mixed by 1: 4.5 mixed weight ratio by Versamid and modified amine 593 at normal temperatures
2) two kinds of mixtures of preparation first, second are equipped with
A. first kind mixture comprises the component of following parts by weight: 90 parts of bisphenol epoxies, 6 parts of 15 parts of toughner and epoxy active diluents mix above-mentioned each component at normal temperatures, form first kind mixture.
B. second kind mixture comprises the component of following parts by weight: 45 parts in solidifying agent, and 1 part of catalyst for trimerization, organo-siloxane coupling agent KH-5501 part is mixed above-mentioned each component at normal temperatures, forms second kind mixture.
3) preparation water-proof adhesive
Above-mentioned first kind mixture for preparing and second kind mixture are carried out weight proportion and the mixed water-proof adhesive that gets present embodiment by 2: 1 weight ratios.
Above-mentioned related mixing is all carried out through whipping device, generally uses low speed gear, reaches to mix to get final product.
Embodiment 2
The preparation of toughner and solidifying agent is same as the previously described embodiments in the present embodiment, and first kind mixture is slightly different with second kind mixture composition weight proportioning wherein, and other preparation process is identical, specific as follows:
A. first kind mixture comprises the component of following parts by weight: 80 parts of bisphenol epoxies, 5 parts of 10 parts of toughner and epoxy active diluents mix above-mentioned each component at normal temperatures, form first kind mixture.
B. second kind mixture comprises the component of following parts by weight: 40 parts in solidifying agent, and 1 part of catalyst for trimerization, organo-siloxane coupling agent KH-5501 part is mixed above-mentioned each component at normal temperatures, forms second kind mixture.
Above-mentioned first kind mixture for preparing and second kind mixture are carried out weight proportion and the mixed water-proof adhesive that gets present embodiment by 2: 1 weight ratios.
Embodiment 3
The preparation of toughner and solidifying agent is identical with embodiment 1 in the present embodiment, and first kind mixture is slightly different with second kind mixture composition weight proportioning wherein, and the preparation process is identical, and is specific as follows:
A. first kind mixture comprises the component of following parts by weight: 100 parts of bisphenol epoxies, 7 parts of 8 parts of toughner and epoxy active diluents mix above-mentioned each component at normal temperatures, form first kind mixture.
B. second kind mixture comprises the component of following parts by weight: 48 parts in solidifying agent, and 2 parts of catalyst for trimerization, organo-siloxane coupling agent KH-5502 part is mixed above-mentioned each component at normal temperatures, forms second kind mixture.
Above-mentioned first kind mixture for preparing and second kind mixture are carried out weight proportion and the mixed water-proof adhesive that gets present embodiment by 2: 1 weight ratios.
Catalyst for trimerization in the foregoing description is a name of product, is called for short DMP-30, and its formal name used at school is 2,4,6-three (dimethylamino methyl) phenol.
The epoxy bridge floor sticker of above embodiment preparation, because of volatilizable thing content is very low, under the normal temperature state, its viscosity is suitable with the viscosity of 170 ℃ of rubber asphalt matrix materials, has good flowability, and general operable time is about 120min.Have after the ambient cure than higher intensity.For example; The inventor has carried out performance test to the sticker of making by embodiment 1 said scheme; This binder material after ambient cure 25 ℃ draw and cut intensity and surpass 8MPa, 60 ℃ are drawn and cut intensity and surpass 6MPa and also have higher elongation at break (greater than 130%) simultaneously, pull strength is still more than 0.9MPa under 135 ℃ of conditions of high temperature; Explain that its resistance to elevated temperatures is excellent, has good resistance to chemical corrosion simultaneously.Shown the meliority (seeing the following form) on its performance of sticker of the present invention with traditional rubber-asphalt waterproof matrix material contrast
From table, can find out; Normal-temperature curing epoxy bridge deck water-proof sticker has better stability and higher mechanical strength than traditional rubber-asphalt waterproof matrix material; Especially under high-temperature condition, still have excellent mechanical property, can effectively overcome the shortcoming that traditional bridge deck water-proof tack coat hot mastication, mechanical property descend significantly.
Claims (1)
1. the normal-temperature curing epoxy waterproof adhesive of a bridge floor; It is characterized in that mixing at normal temperatures by 2: 1 weight ratios by two groups of mixtures of first, second; Said first group mixture comprises the component of following parts by weight: 80～100 parts of bisphenol epoxies; 10～18 parts of toughner, 5～7 parts of epoxy active diluents, said components forms first group mixture through mixing at normal temperatures; Said component B comprises the component of following parts by weight: 40～50 parts in solidifying agent, and 1～2 part of catalyst for trimerization, 1～2 part of organo-siloxane coupling agent KH-550, said components forms second group mixture through mixing at normal temperatures;
Above-mentioned toughner be by liquid polysulfide rubber and response type epoxy toughening agent CYH-277 by 1: 10 weight ratio at normal temperatures through mixing; Above-mentioned solidifying agent is that Versamid and modified amine 593 mix by 1: 4.5 mixed weight ratio at normal temperatures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101301652A CN101798494B (en) | 2010-03-23 | 2010-03-23 | Normal-temperature curing epoxy waterproof adhesive of bridge deck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101301652A CN101798494B (en) | 2010-03-23 | 2010-03-23 | Normal-temperature curing epoxy waterproof adhesive of bridge deck |
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| CN101798494A CN101798494A (en) | 2010-08-11 |
| CN101798494B true CN101798494B (en) | 2012-10-31 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433057B (en) * | 2011-09-01 | 2013-06-12 | 中科院广州化学有限公司 | Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof |
| CN103627368B (en) * | 2013-11-28 | 2016-02-24 | 长安大学 | A kind of matrix material for bituminous concrete basal plane and preparation method thereof |
| CN103726444B (en) * | 2014-01-03 | 2015-09-23 | 江苏省交通科学研究院股份有限公司 | A kind of multiple field super thick lightweight bridge deck pavement structure and paving method |
| CN104449427B (en) * | 2014-11-21 | 2016-11-16 | 辽宁瑞德公路科技有限公司 | For steel surface and the adhesives of bituminous concrete |
| CN104497941B (en) * | 2014-12-26 | 2017-05-31 | 上海大学 | Bi-component toughness reinforcing anti-impact epoxy structural rubber and preparation method thereof |
| CN106145769A (en) * | 2016-06-20 | 2016-11-23 | 许昌金欧特沥青股份有限公司 | A kind of low temperature resistant Steel Bridge Deck colour pavement material |
| CN106381112A (en) * | 2016-08-31 | 2017-02-08 | 卡本复合材料（天津）有限公司 | Epoxy resin concrete interface glue and preparation method thereof |
| CN110205069B (en) * | 2019-06-04 | 2021-05-11 | 中国铁路设计集团有限公司 | Epoxy structure adhesive for bridge segment prefabrication and splicing |
| CN112391136A (en) * | 2020-04-17 | 2021-02-23 | 潼灏(上海)材料科技有限公司 | Epoxy resin composition for steel bridge deck pavement bonding layer and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0527706A1 (en) * | 1991-08-12 | 1993-02-17 | Ciba-Geigy Ag | High performance epoxy adhesive composition with high flexibility and toughness |
| CN1546589A (en) * | 2003-12-09 | 2004-11-17 | 辽宁大通公路工程有限公司 | Dynamic structural adhesive for bridge |
| CN101497510A (en) * | 2009-03-03 | 2009-08-05 | 重庆鹏方路面工程技术研究院有限公司 | Modified epoxy resin concrete material and preparation thereof |
-
2010
- 2010-03-23 CN CN2010101301652A patent/CN101798494B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0527706A1 (en) * | 1991-08-12 | 1993-02-17 | Ciba-Geigy Ag | High performance epoxy adhesive composition with high flexibility and toughness |
| CN1546589A (en) * | 2003-12-09 | 2004-11-17 | 辽宁大通公路工程有限公司 | Dynamic structural adhesive for bridge |
| CN101497510A (en) * | 2009-03-03 | 2009-08-05 | 重庆鹏方路面工程技术研究院有限公司 | Modified epoxy resin concrete material and preparation thereof |
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Address after: 210017 Nanjing, Jianye Province Water West Gate Street, No. 223 Patentee after: JSTI GROUP Co.,Ltd. Address before: 210017 Nanjing, Jianye Province Water West Gate Street, No. 223 Patentee before: JIANGSU TRANSPORTATION RESEARCH INSTITUTE Co.,Ltd. |
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Effective date of registration: 20170629 Address after: 210017 Nanjing, Jianye Province Water West Gate Street, No. 223 Patentee after: JIANGSU YANNING ENGINEERING CONSULTING Co.,Ltd. Address before: 210017 Nanjing, Jianye Province Water West Gate Street, No. 223 Patentee before: JSTI GROUP Co.,Ltd. |
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