CN103964748B - A kind of expansion joint fast repairing material and preparation method thereof - Google Patents

A kind of expansion joint fast repairing material and preparation method thereof Download PDF

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Publication number
CN103964748B
CN103964748B CN201410142255.1A CN201410142255A CN103964748B CN 103964748 B CN103964748 B CN 103964748B CN 201410142255 A CN201410142255 A CN 201410142255A CN 103964748 B CN103964748 B CN 103964748B
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mass parts
expansion joint
aggregate
epoxy resin
component
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CN103964748A (en
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孙杨勇
尹昌宇
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Guangdong Jianke Traffic Engineering Quality Inspection Center Co., Ltd.
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Guangdong Construction Academy Group PLC
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a kind of expansion joint fast repairing material, comprise following content of component: epoxy resin 100 mass parts, reactive thinner 10 ~ 30 mass parts, filler 5 ~ 40 mass parts, solidifying agent 50 ~ 100 mass parts, ultraviolet absorbers 0.1 ~ 3 mass parts and aggregate, the ratio of the quality summation of quality and A, B two groups of components of described aggregate is 3:1-8:1.The invention also discloses the preparation method of this patching material.Good toughness, the close traffic time of this patching material are short, interfacial adhesion outstanding, constructing operation is easy, long service life.

Description

A kind of expansion joint fast repairing material and preparation method thereof
Technical field
The invention belongs to pavement patching field, be specifically related to a kind of expansion joint fast repairing material and preparation method thereof.
Background technology
In recent years, along with the fast development of national economy, the road traffic construction of China achieves the achievement attracted people's attention.Expansion joint is as the important accessory structure of bridge construction, and its quality directly has influence on the comfortableness of traffic safety and driving and vehicle pass-through speed etc., also has influence on the work-ing life of overall bridge simultaneously.In addition, because China's road traffic flow is large, the repairing expansion joint of long term frequent not only easily causes traffic congestion also can produce huge financial loss because personnel, cargo movement are not smooth.Therefore, for These characteristics, developing a kind of expansion joint quick repair technology little to traffic impact and have important practical significance, is also very necessary and urgent.Chinese patent application CN103387353A discloses a kind of polyurethane concrete fast repairing material, it is made up of urethane monomer, polyvalent alcohol, softening agent, catalyzer and fine aggregate etc., its ultimate compression strength can reach more than 20MPa after health 2h, but cohesive strength is on the low side, less than 4MPa after health 7d.Visible, existing expansion joint patching material as cement concrete have that fragility is large, tensile strength and the defect such as interface adhesion is poor, use needs cannot be met.
Summary of the invention
An object of the present invention is to provide a kind of good toughness, the close traffic time is short, interfacial adhesion is given prominence to, constructing operation is easy, the expansion joint fast repairing material of long service life.
Object of the present invention can by realizing with technical scheme: a kind of expansion joint fast repairing material, is characterized in that, comprises following content of component:
Component A: epoxy resin 100 mass parts;
Reactive thinner 10 ~ 30 mass parts
Filler 5 ~ 40 mass parts
B component: solidifying agent 50 ~ 100 mass parts
Ultraviolet absorbers 0.1 ~ 3 mass parts
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 3:1-8:1.
Described epoxy resin is bisphenol A type epoxy resin, as epoxy resin E51.
Described reactive thinner is cardanol glycidyl ether (NC513).NC513 not only can play the effect of dilution, and owing to having toughening effect with long side chain in its molecular structure, its molecular formula is as follows:
Described filler is diatomite or active micro silicon powder.
Described solidifying agent is pnenolic aldehyde amine hardener.
Described uv-absorbing agent is benzotriazole compound, and as UV-329, Absorbable rod wavelength region is in the UV-light of 300-385nm.
Described aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm.As one embodiment of the present of invention, described resistance to grinding stone is prepared from by the following method: with copper mine or iron ore mine stone for raw material, after pulverizing, and at 2500 ~ 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Two of object of the present invention is the preparation method providing above-mentioned expansion joint fast repairing material.
The preparation method of above-mentioned expansion joint fast repairing material is: epoxy resin, reactive thinner, filler, solidifying agent and UV-light attractant are put into successively and mix and stir bucket, stir and obtain glue, then glue is added in aggregate, uniform mixing, expansion joint fast repairing material.
The present invention compared with prior art has the following advantages:
(1) high, the good toughness of intensity: patching material provided by the invention using the epoxy resin of adhesive property excellence after toughening modifying as tackiness agent, take particle diameter as the resistance to grinding stone of 0.6mm-3.3mm be aggregate, after patching material solidification, physical and mechanical properties is excellent, and interface binding intensity is higher than the bulk strength of concrete surface.
(2) easy construction, preserving period, are short: under the effect of pnenolic aldehyde amine hardener, epoxy resin can realize fast setting at normal temperatures and early strength is high, health gets final product open to traffic in 3 ~ 6 hours, can meet the demand that the large urban road of traffic flow or motorway are repaired fast to expansion joint.
(3) good, the current noise of pavement performance is low: patching material provided by the invention take particle diameter as the resistance to grinding stone of 0.6mm-3.3mm is aggregate, its Mohs' hardness is more than 6, and grading of aggregate is through optimizing, repair rear surface construction depth large frictional coefficient high, decrease impact that vehicle produces at breakage after repairing in addition thus reduce driving noise.
(4) widely applicable: major ingredient of the present invention adopts epoxy resin, to basal planes such as cement concrete, bituminous concrete, steel plate, stone materials, all there is excellent adhesive property, be therefore applicable to different basal plane.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but therefore the present invention is not limited in described scope of embodiments.
In following examples, epoxy resin is bisphenol A type epoxy resin, as epoxy resin E51.
Reactive thinner is cardanol glycidyl ether (NC513).NC513 not only can play the effect of dilution, and owing to having toughening effect with long side chain in its molecular structure, its molecular formula is as follows.
Filler is diatomite or active micro silicon powder.
Solidifying agent is pnenolic aldehyde amine hardener.
Uv-absorbing agent is benzotriazole compound, and as UV-329, Absorbable rod wavelength region is in the UV-light of 300-385nm.
Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm.Preferably, resistance to grinding stone is prepared from by the following method: with copper mine or iron ore mine stone for raw material, after pulverizing, and at 2500 ~ 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
embodiment 1
Expansion joint fast repairing material, is obtained by following component:
Component A: epoxy resin E51100 mass parts;
NC51312 mass parts;
Diatomite 20 mass parts;
B component: pnenolic aldehyde amine hardener 80 mass parts;
UV3291.5 mass parts;
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 4:1.Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm, is raw material by copper mine, and after pulverizing, at 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Epoxy resin E51, reactive thinner NC513, diatomite, pnenolic aldehyde amine hardener, ultraviolet absorbers UV329 are put into successively and mix and stir bucket, be stirred into after glue with aggregate uniform mixing, expansion joint fast repairing material.
embodiment 2
Expansion joint fast repairing material, is obtained by following component:
Component A: epoxy resin E51100 mass parts;
NC51312 mass parts;
Active micro silicon powder 20 mass parts;
B component: pnenolic aldehyde amine hardener 80 mass parts;
UV3291.5 mass parts;
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 5:1.Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm, is raw material by iron ore mine stone, and after pulverizing, at 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Epoxy resin E51, reactive thinner NC513, active micro silicon powder, pnenolic aldehyde amine hardener, ultraviolet absorbers UV329 are put into successively and mix and stir bucket, be stirred into after glue with aggregate uniform mixing, expansion joint fast repairing material.
embodiment 3
A kind of expansion joint fast repairing material, is obtained by following component:
Component A: epoxy resin E51100 mass parts;
NC51315 mass parts;
Diatomite 30 mass parts;
B component: pnenolic aldehyde amine hardener 80 mass parts;
UV3291.5 mass parts;
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 6:1.Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm, is raw material by copper mine, and after pulverizing, at 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Epoxy resin E51, reactive thinner NC513, diatomite, pnenolic aldehyde amine hardener, ultraviolet absorbers UV329 are put into successively and mix and stir bucket, be stirred into after glue with aggregate uniform mixing, expansion joint fast repairing material.
embodiment 4
Expansion joint fast repairing material, is obtained by following component:
Component A: epoxy resin E51100 mass parts;
NC51320 mass parts;
Active micro silicon powder 40 mass parts;
B component: pnenolic aldehyde amine hardener 80 mass parts;
UV3291.5 mass parts;
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 4:1.Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm, is raw material by iron ore mine stone, and after pulverizing, at 3000 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Epoxy resin E51, reactive thinner NC513, active micro silicon powder, pnenolic aldehyde amine hardener, ultraviolet absorbers UV329 are put into successively and mix and stir bucket, be stirred into after glue with aggregate uniform mixing, expansion joint fast repairing material.
embodiment 5
Expansion joint fast repairing material, is obtained by following component:
Component A: epoxy resin E51100 mass parts;
NC51325 mass parts;
Active micro silicon powder 20 mass parts;
B component: pnenolic aldehyde amine hardener 60 mass parts;
UV3291.5 mass parts;
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 4:1.Aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm, is raw material by copper mine, and after pulverizing, at 2500 DEG C, high-temperature firing becomes, and Mohs' hardness is more than 5.
Epoxy resin E51, reactive thinner NC513, diatomite, pnenolic aldehyde amine hardener, ultraviolet absorbers UV329 are put into successively and mix and stir bucket, be stirred into after glue with aggregate uniform mixing, expansion joint fast repairing material.
experimental example 1
This experimental example, for both sides, expansion joint Paving Bituminous Concrete damage revamping, further illustrates application method of the present invention, comprises the following steps:
(1) processing base level: cut the thick groove of wide about 20cm along direction, expansion joint, removes the Paving Bituminous Concrete layer in groove, the greasy dirt of adhesive surface, ponding, dust etc. is removed and is sealed by expansion joint punching block;
(2) primary coat: the glue be stirred in the embodiment 1 or 2 that takes a morsel, with hairbrush at groove wall and bottom brushing one deck glue;
(3) filler: the compound mixed and stirred in embodiment 1 or 2 is inserted in groove, floating the superiors compound also makes its slightly high road surface 2-3mm;
(4) then surface layer vibrations are densified to equal with former road surface by surface layer process: one deck rubble identical with road surface color is spread in mix surface after filling up in hole, hole;
(5) maintenance: allow after construction behind repair layer health 3-6 hour (concrete time depending on envrionment temperature, health 4 hours when temperature is more than 20 DEG C) and get final product open to traffic.
experimental example 2
This experimental example, for both sides, expansion joint concrete damage revamping, further illustrates application method of the present invention, comprises the following steps:
(1) processing base level: cut and ftracture but the concrete blocks not yet come off remove fragment, dust, greasy dirt, the ponding in concrete surface face;
(2) primary coat: the glue be stirred in the embodiment 1 or 2 that takes a morsel, with hairbrush at groove wall and bottom brushing one deck glue;
(3) filler: the compound mixed and stirred in embodiment 1 or 2 is inserted in groove, floating the superiors compound also makes its slightly high road surface 2-3mm;
(4) then surface layer vibrations are densified to equal with former road surface by surface layer process: one deck rubble identical with road surface color is spread in mix surface after filling up in hole, hole;
(5) maintenance: allow after construction behind repair layer health 3-6 hour (concrete time depending on envrionment temperature, health 4 hours when temperature is more than 20 DEG C) and get final product open to traffic.
testing method
Mechanics Performance Testing: measure cohesive strength according to GB/T16777-2008; Steel steel cohesive strength is measured according to GB/T6329-1996; Steel-steel stretching slip resistance is measured according to GB/T7124-2008.
Hydrothermal aging is tested: by 8 type matrix samples at temperature 60 C, lower aging 20 days of humidity 98% condition, detects cohesive strength change.
Thermal cycling test: be a circulation to boil 8h in 70 DEG C of water, then to freeze 16h at-5 DEG C of refrigerators by 8 type matrix samples, repeats five times, detects cohesive strength change.
Marshall experiment, rut experiment: measure Marshall stability, dynamic stability according to JTGE20-2011.
Ultimate compression strength: measure ultimate compression strength according to GB50081-2002.
Swinging friction coefficient, construction depth: measure swinging friction coefficient and construction depth according to JTGE20-2008.
Current noise: adopt common sound level to measure test run by noise in car during expansion joint under vehicle window closing condition.
As can be seen from Table 1 and Table 2, the features such as the glue prepared by the present invention has good mechanical performance, ageing-resistant performance is given prominence to.As embodiment 1, namely exceeded concrete bulk strength after the cohesive strength health 1d of glue, steel steel adhesive tensile resistance intensity and steel steel stretching slip resistance are all at more than 15MPa.Cohesive strength, after hydrothermal aging and thermocycling experiment, is still greater than concrete bulk strength.
As can be seen from Table 3, the patching material prepared by the present invention has quick solidifying, the feature of excellent in mechanical performance.As in embodiment 2,30 DEG C the length of time 3h, the ultimate compression strength of material just can reach more than 10MPa, and 1d ultimate compression strength in the length of time is more above about 15MPa, possesses in the condition of temperature higher than maintenance 4h when 20 DEG C and open to traffic.As embodiment 1, Marshall stability and the dynamic stability of material are all obviously better than modified asphalt concrete.
As can be seen from Table 4, have the advantages that security is good, noise is low after adopting the patching material prepared by the present invention to repair expansion joint.As in experimental example 1, after repairing, the swinging friction coefficient on road surface reaches 87 in the dry state, also reaches 62 under dampness, and current noise then reduces 21.5%.

Claims (3)

1. an expansion joint fast repairing material, is characterized in that, comprises following content of component:
Component A: epoxy resin 100 mass parts;
Reactive thinner 10 ~ 30 mass parts
Filler 5 ~ 40 mass parts
B component: solidifying agent 50 ~ 100 mass parts
Ultraviolet absorbers 0.1 ~ 3 mass parts
Component C: aggregate, the ratio of the quality summation of its quality and A, B two groups of components is 3:1-8:1;
Described epoxy resin is bisphenol A type epoxy resin, described reactive thinner is cardanol glycidyl ether, described filler is diatomite or active micro silicon powder, described solidifying agent is pnenolic aldehyde amine hardener, described uv-absorbing agent is benzotriazole compound, described aggregate is resistance to grinding stone, and its particle diameter is 0.6mm-3.3mm.
2. expansion joint according to claim 1 fast repairing material, it is characterized in that, described resistance to grinding stone is prepared from by the following method: with copper mine or iron ore mine stone for raw material, after pulverizing, at 2500 ~ 3000 DEG C, high-temperature firing becomes, and its Mohs' hardness is more than 5.
3. the preparation method of the expansion joint fast repairing material described in the arbitrary claim of claim 1 ~ 2, it is characterized in that, epoxy resin, reactive thinner, filler, solidifying agent and UV-light attractant are put into successively and mixes and stirs bucket, stir and obtain glue, then glue is added in aggregate, uniform mixing, expansion joint fast repairing material.
CN201410142255.1A 2014-04-10 2014-04-10 A kind of expansion joint fast repairing material and preparation method thereof Active CN103964748B (en)

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CN105503041A (en) * 2015-12-16 2016-04-20 四川国星高分子树脂有限公司 Asphalt with pebbles as aggregates and preparing method thereof
CN105625169A (en) * 2015-12-24 2016-06-01 重庆博焱建筑加固工程有限公司 Rapid replacing method and restoring method for bridge expansion joint
CN106495562A (en) * 2016-09-23 2017-03-15 广东省建筑科学研究院集团股份有限公司 A kind of cold painting type road and bridge face thin layer pavement material for adapting to southern warm and its using method
CN106431085A (en) * 2016-09-23 2017-02-22 广东省建筑科学研究院集团股份有限公司 Material for quickly repairing asphalt thin overlay and preparation method thereof
CN106746913A (en) * 2017-01-10 2017-05-31 广东省建筑科学研究院集团股份有限公司 A kind of tunnel special-purpose anti-flaming type Thin Pavement pavement material and its application method
CN107298543B (en) * 2017-07-25 2020-05-22 山东建筑大学 Room-temperature self-compacting airport pavement repairing material and preparation method thereof
CN107879668B (en) * 2017-12-08 2020-09-25 卡本复合材料(天津)有限公司 Anti-cracking epoxy mortar for rapid repair of expansion joint and preparation method thereof
CN109455980A (en) * 2019-01-02 2019-03-12 广州市市政工程维修处 Concrete road surface material for quickly repairing and its restorative procedure

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CN103627140A (en) * 2013-11-01 2014-03-12 鲲鹏建设集团有限公司 Cementing material for durable colored pavement and preparation method thereof

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