CN105838094B - A kind of toughening type warm mixed epoxy bitumen of paving steel bridge deck - Google Patents
A kind of toughening type warm mixed epoxy bitumen of paving steel bridge deck Download PDFInfo
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- CN105838094B CN105838094B CN201610317122.2A CN201610317122A CN105838094B CN 105838094 B CN105838094 B CN 105838094B CN 201610317122 A CN201610317122 A CN 201610317122A CN 105838094 B CN105838094 B CN 105838094B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
- C08L2555/24—Asphalt produced between 100°C and 140°C, e.g. warm mix asphalt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/80—Macromolecular constituents
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention belongs to technical field of transportation, are mainly used for paving steel bridge deck, improve the new material of the pavement performance of paving steel bridge deck.It uses MBS core-shell graft copolymers for toughener, using phenolic compound as compatilizer, asphalt material is carried out to increase soft toughening preferably and the characteristics of can dissolve each other with pitch using flexibility under MBS core-shell graft copolymer low temperature, the characteristics of being dissolved each other using phenolic compound and pitch and epoxy resin, the interfacial tension between pitch and epoxy resin is reduced as third phase, to achieve the purpose that co-mixing system is stablized.
Description
Technical field
The invention belongs to technical field of transportation, are mainly used for paving steel bridge deck, improve the pavement performance of paving steel bridge deck
New material.
Background technology
As China's modern highway infrastructure construction scale is gradually expanded, more and more steel structure bridges are built in succession
At and put into effect.Steel structure bridge generally uses Orthotropic Steel Bridge Deck, due to steel bridge deck stress and deforms more multiple
Miscellaneous, problem of mating formation is always a hot and difficult issue in the world.Epoxy bitumen material is as a kind of thermosets and thermoplastic
Property plain asphalt material is compared, and is a kind of ideal Steel Bridge Deck with excellent high-temperature stability and antifatigue cracking ability
Pavement material.But since bituminous epoxy belongs to a kind of multicomponent co-mixing system of complexity, chemical characteristic is each between each component
It is different, how to ensure the stable structure of co-mixing system, the condensate performance of generation is excellent, is the difficulty in bituminous epoxy R＆D process
Point；In addition, during epoxy resin pitch concrete steel bridge surface use, it is flexible since epoxy asphalt concrete brittleness is larger
Property deficiency caused by pave-load layer cracking, fatigue crack and interlaminar bonding failure damage phenomenon it is also commonplace.
For the flexibility of stability and epoxy bitumen material between reinforced epoxy pitch co-mixing system each component, the country opens
Opened up some research, such as reacted with epoxy resin using ricinoleic acid prepare bulking agent precursor and use organo montmorillonite
(OMMT) composite modified epoxy pitch is made using reactive melt-blending process to increase co-mixing system each group in modified epoxy pitch
Stability between point；Using addition rubber powder, basalt fibre, pitch is carried out to increase soft modification, these methods are to co-mixing system
The flexibility raising of stability and mixture between each component can play certain effect, but also larger impact bituminous epoxy
Take in time and Asphalt Mixture, therefore ensureing that the time is taken in bituminous epoxy construction enough in and the excellent road of mixture is used
Under the premise of performance, the flexibility that improves bituminous epoxy is still our urgent problems.
Invention content
It is an object of the present invention to for the above-mentioned deficiency for improving existing steel deck paving package material, provide a kind of road use
The all excellent steel deck paving package material of performance, workability, economic performance, uses MBS core-shell structure copolymers graft copolymer for toughening
Agent, using phenolic compound as compatilizer, and energy preferable using flexibility under MBS core-shell structure copolymer graft copolymer low temperature and pitch
The characteristics of dissolving each other carries out asphalt material increasing soft toughening, the spy that can be dissolved each other using phenolic compound and pitch and epoxy resin
Point reduces the interfacial tension between pitch and epoxy resin as third phase, to achieve the purpose that co-mixing system is stablized.
In one embodiment, the steel deck paving package material is made of component A and component B, wherein component A includes
The pitch of 400-550 parts by weight, the maleic anhydride of 20-27 parts by weight, the methyl hexahydrophthalic anhydride of 80-120 parts by weight, 40-60 weights
Measure MBS (methyl methacrylate-styrene-butadiene rubber) graft copolymer of the phenol and 6-10 parts by weight of part；Component B
Include the epoxy propane butyl ether of bisphenol A type epoxy resin E51 and the 1-4 parts by weight of 95-100 parts by weight.
In another embodiment, the weight ratio of component A and component B are 5-8: 1, further preferably 6: 1.
In being preferably carried out scheme, the steel deck paving package material is made of component A and component B, wherein component A packets
The phenol of the maleic anhydride of pitch, 22.5 parts by weight, the methyl hexahydrophthalic anhydride of 100 parts by weight, 60 parts by weight containing 450 parts by weight
With MBS (methyl methacrylate-styrene-butadiene rubber) graft copolymer of 6 parts by weight；Component B includes 100 parts by weight
Bisphenol A type epoxy resin E51 and 2 parts by weight epoxy propane butyl ether.
It is specific as follows it is a further object to provide a kind of method preparing the steel deck paving package material：
1) prepared by component A：First pitch and maleic anhydride are uniformly mixed under the conditions of 120 DEG C, when maleic anhydride is complete
It is complete to incorporate in pitch, then MBS graft copolymers are added in 120 DEG C of pitch, it is stirred continuously, stir speed (S.S.) control is 200-
250rpm sequentially adds methyl hexahydrophthalic anhydride after MBS graft copolymers are completely dissolved into pitch, and phenol is stirred, stirring
Rate control is 200-250rpm, mixing time 20min；
2) prepared by component B：Epoxy propane butyl ether is added in bisphenol A type epoxy resin E51 under the conditions of 50 DEG C, stirring is equal
It is even；
3) it mixes：By component A and component B by weight mixing, 2-3min is stirred under the conditions of 120 DEG C, is prepared into combination
Material.
The beneficial effects of the invention are as follows：The bituminous epoxy low temperature flexibility of preparation, high-temperature stability have obtained significantly carrying
Height, the Asphalt Mixture prepared as binder have obtained apparent improvement, and pavement performance, workability can expire
Foot《Highway steel bridge floor Pavement design and construction technique normalizing》To the requirement of the technology of corresponding product in (draft for deliberation).With U.S.'s epoxy
Asphaltic products are compared, the bituminous epoxy tensile strength of preparation, and fracture elongation and construction take the time in and by it as combination
Expect that the high temperature dynamic stability of the mixture prepared, low temperature limit bending strain and freeze-thaw split intensity ratio are better than the epoxy in the U.S.
Asphaltic products.
Specific implementation mode
It is illustrated the present invention below by further.It should be pointed out that following explanation is only to be wanted to the present invention
Ask the technical solution of protection for example, not to any restrictions of these technical solutions.Protection scope of the present invention is with institute
Subject to the content that attached claims are recorded.
It is prepared by 1 paving steel bridge deck binder of embodiment
Precision weighs the material of following parts by weight：
B component：100 parts of bisphenol A type epoxy resin E51
2 parts of epoxy propane butyl ether
In component A, first pitch and maleic anhydride are uniformly mixed under the conditions of 120 DEG C, when maleic anhydride melts completely
Enter in pitch, then MBS elastomers are added in 120 DEG C of pitch, be stirred continuously, stir speed (S.S.) control is 200-250rpm, is waited for
After MBS elastomers are completely dissolved into pitch, methyl hexahydrophthalic anhydride is sequentially added, phenol is stirred, and stir speed (S.S.) control is 200-
250rpm, mixing time 20min.
In B component, epoxy propane butyl ether is added under the conditions of 50 DEG C in bisphenol A type epoxy resin E51, is stirred evenly.
A, B component in mass ratio A: B=1: 6.08 is mixed, 2-3min is stirred under the conditions of 120 DEG C, is prepared into combination
Material.
Embodiment 2
By preparation add MBS be modified binder and do not add MBS modification binder, and carried out tensile strength with
Fracture elongation is tested, using GB/T 16777-2008《Test methods for building waterproof coatings》Specified in test specimen production method
Shaping test piece places it in 120 DEG C of baking ovens after the completion of testing test material preparation and keeps the temperature 4h, test specimen is fully cured at this time, will cure
Test specimen afterwards is placed in 3 hours of heat preservation under test temperature, and tension test is carried out after test specimen temperature stabilization, and entire experiment is omnipotent
It is carried out in Material Testing Machine, experiment rate of extension is 50 ± 5mm/min.Six test specimens are had chosen as one group and carry out stretching examination
It tests, takes the average value of its result as test result.
Its test result is as follows：
Binder tensile strength under the conditions of 1 different tests of table and fracture elongation
Comparative example 1：For asphalt binder disclosed in patent CN200810032199, specific preparation method is referring to its specification
017th section -024 section, similarly hereinafter.
Comparative example 2：The preparation method is the same as that of Example 1, differs only in and is not added with MBS graft copolymers, similarly hereinafter.
Embodiment 3
Epoxy asphalt mixture has been subjected to wheel tracking test, low temperature bend test, indirect tensile test on frozen-thaw and fatigue test, has been tried
It is as follows to test process：
Wheel tracking test：The wheel tracking test in China uses the track die trial of 300mm × 300mm × 50mm, test specimen to press《Highway work
Journey pitch and Asphalt Mixture Experiment regulation》Standard method as defined in (JTG E20-2011) is molded with edge runner.Experiment is taken turns
The solid tyre of rubber system, diameter 200mm, wide 50mm, rubber thickness 15mm, wheel load 0.7MPa, 70 DEG C of test temperature, loading wheel
The speed of service is 42 times/min.Until wheel tracking test usually carries out 60min or maximum distortion to 25mm, dynamic stability DS (secondary/
Mm) formula is pressed to calculate：
In formula：d1For load wheel action time t1Permanent deformation when (generally 45min), mm；d2For the load crop rotation used time
Between t2Permanent deformation when (generally 60min), mm.
Low temperature bend test：According to《Highway engineering pitch and Asphalt Mixture Experiment regulation》The rule of (JTG E20-2011)
It is fixed, by the molding track plate test specimen cut growth 250mm ± 2.0mm of rolling, the rib of wide 30mm ± 2.0mm high 35mm ± 2.0mm
Cylinder girder, across footpath are 200mm ± 0.5mm.It is tested using low temperature bend test instrument.Before on-test, girder is tried
Part is positioned in humiture environmental cabinet, by the temperature 4h of test determination.When on-test, testing machine is preheated first
30min, and it is 50mm/min to debug loading speed.Test specimen is taken out out of environmental cabinet again, load and reads place's data, in 45s
The interior primary experiment of completion, same compound test specimen carry out parallel test three times, and the difference of each loop test result is not more than
The 20% of average value takes its average value as test result.Otherwise, it tests again.
Indirect tensile test on frozen-thaw：Freeze-thaw split strength test test specimen uses《Highway engineering pitch and Asphalt Mixture Experiment rule
Journey》Marshall compaction method forming cylinder body test specimen specified in (JTG E20-2011), striking times are tow sides each 50 times.
Test specimen is divided into two groups, every group 4 when experiment.One group impregnated 2 hours in 25 DEG C of water after measure, during another group of full water such as
Under：
1) (about 25 DEG C) immersion 20min under room temperature；
2) 0.09MPa immersions vacuumize 15min；
3) it is stored 16 hours in -18 DEG C of refrigerators；
4) constant temperature 24 hours in 60 DEG C of water-baths are placed in；
5) it is impregnated 2 hours in 25 DEG C of water.
Pressure value when pressure break is measured first using cracking test instrument, by formula R=0.06287PT/ h calculates Split-tension of Rolled
Intensity, then freeze-thaw split tensile strength ratio TSR is calculated as follows：
In formula：TSR- freeze-thaw splits tensile strength ratio, %
RT2The tensile splitting strength of second group of test specimen, MPa after Frozen-thawed cycled；
RT1The tensile splitting strength of first group of test specimen without Frozen-thawed cycled, MPa.
Fatigue test：Fatigue test uses four-point bending fatigue test, test specimen to be molded using rolling, and sample dimensions are
400mm×300mm×75mm.The voidage of stringent control shaping test piece is in ± 0.5% range of marshal piece voidage, warp
After 120 DEG C of isothermal curing 4h, using high-precision Double-side Synchronous cutting equipment by molding test specimen cut into 380mm × 65mm ×
The standard four-point bending girder test specimen of 50mm uses 3 parallel tests under each strain level.Experiment is using produced in USA
MTS-810 type hydraulic servo Material Testing Machine carries out fatigue test, and the measurement accuracy of MTS force snesors is 1N, greatest measurement
For 20kN.During experiment, device systems, which can automatically control, loads and records in real time the variable condition of test parameters until stiffness
When modulus drops to the 50% of initial stiffness modulus, experiment is automatically stopped, and records test number (TN).Environment temperature case temperature-controlled precision
It is 0.1 DEG C.
Experiment process is as follows：
1. the girder test specimen of forming is placed in MTS experimental enviroment casees, cured under same condition 5h.In view of temperature is to examination
Test the influence of result, when experiment and test piece maintenance process avoids the variation of temperature in environmental cabinet as possible, and test specimen is positioned over environment
Case leans on intermediate position as possible.
2. the test specimen conserved is packed into four-point bending fatigue fixture, the distance for accurately adjusting each collet ensures distance values phase
Together, it and after test specimen placement level, turns upper grip and is extremely just contacted with test specimen.
3. opening MTS device software control interfaces, arrange parameter starts to test.The condition of off-test is：Test specimen loads
1000000 times or test specimen residue stiffness modulus are less than initial stiffness modulus 50%, meet one of its conditional and are considered as experiment completion.
In fatigue test, under the conditions of of the same race, fatigue test number is higher, and the fatigue behaviour for representing material is better.
Wheel tracking test, low temperature bend test, indirect tensile test on frozen-thaw and fatigue test results such as following table：
2 different type epoxy asphalt mixture test result of table
In addition, it is necessary to which explanation is to have carried out the laying of test section in Foshan west firewood bridge mats formation engineering, passed through
Use in 2 years, present paving structure is still good, and road surface does not occur any disease.
The content of present invention merely illustrates some claimed specific embodiments, one of them or more skill
Recorded technical characteristic can be combined with arbitrary one or more technical solutions in art scheme, these are combined and obtain
Technical solution also in the application protection domain, technical solution is disclosed in the present invention just as obtained from these are combined
It is specifically recorded in content the same.
Claims (1)
1. a kind of preparation method of steel deck paving package material, specific as follows：
1) the accurate material for weighing following parts by weight：The steel deck paving package material is made of component A and component B, wherein component
A is by the middle sea 70# pitches of 450 parts by weight, the maleic anhydride of 22.5 parts by weight, the methyl hexahydrophthalic anhydride of 100 parts by weight, 60 weight
The phenol of part and MBS (methyl methacrylate-styrene-butadiene rubber) core-shell structure copolymer graft copolymer composition of 6 parts by weight,
Component B is made of the bisphenol A type epoxy resin E51 of 100 parts by weight and the epoxy propane butyl ether of 2 parts by weight；
2) in component A, first pitch and maleic anhydride are uniformly mixed under the conditions of 120 DEG C, when maleic anhydride is fully immersed into
In pitch, then MBS core-shell structure copolymer graft copolymers are added in 120 DEG C of pitch, are stirred continuously, stir speed (S.S.) control is 200-
250rpm sequentially adds methyl hexahydrophthalic anhydride, phenol, is stirred after MBS core-shell structure copolymer graft copolymers are completely dissolved into pitch,
Stir speed (S.S.) control is 200-250rpm, mixing time 20min；
3) in component B, epoxy propane butyl ether is added under the conditions of 50 DEG C in bisphenol A type epoxy resin E51, is stirred evenly；
4) it mixes：Component A and component B is mixed by 1: 6.08 weight ratio, 2-3min is stirred under the conditions of 120 DEG C, is prepared into
Binder；
The pavement material uses MBS core-shell structure copolymers graft copolymer for toughener, using phenolic compound as compatilizer, utilizes
Flexibility carries out asphalt material to increase soft increasing preferably and the characteristics of can dissolve each other with pitch under MBS core-shell structure copolymer graft copolymer low temperature
It is tough, the characteristics of can dissolving each other using phenolic compound and pitch and epoxy resin, pitch and asphalt mixtures modified by epoxy resin are reduced as third phase
Interfacial tension between fat, to achieve the purpose that co-mixing system is stablized.
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| CN110922772B (en) * | 2018-09-20 | 2022-04-08 | 中国石油化工股份有限公司 | Modified epoxy asphalt particles and preparation and application thereof |
| CN109971176B (en) * | 2019-04-18 | 2021-12-17 | 重庆市智翔铺道技术工程有限公司 | Steel bridge deck paving material based on polyarylene sulfide and polycarbonate and preparation method thereof |
| CN113214667B (en) * | 2021-05-31 | 2022-06-14 | 海南恒建沥青路面有限公司 | Modified asphalt and preparation method thereof |
| CN115029010B (en) * | 2022-07-21 | 2023-06-20 | 天津大学 | Utilization method of phenol-based rectifying still residues and epoxy asphalt material modified by same |
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| CN102952407A (en) * | 2011-08-30 | 2013-03-06 | 中国石油化工股份有限公司 | High-heat-storage-stability MBS (methyl methacrylate-butadiene-styrene)-asphalt composition and preparation method thereof |
| CN105086476A (en) * | 2014-05-08 | 2015-11-25 | 重庆市化工研究院 | Composite emulsion modified emulsified asphalt and preparation method therefor |
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| US7234284B2 (en) * | 2003-03-04 | 2007-06-26 | Innovative Adhesives Company | Composition and method for roofing material installation |
| US7537827B1 (en) * | 2006-12-13 | 2009-05-26 | Henkel Corporation | Prepreg laminates |
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| CN102952407A (en) * | 2011-08-30 | 2013-03-06 | 中国石油化工股份有限公司 | High-heat-storage-stability MBS (methyl methacrylate-butadiene-styrene)-asphalt composition and preparation method thereof |
| CN105086476A (en) * | 2014-05-08 | 2015-11-25 | 重庆市化工研究院 | Composite emulsion modified emulsified asphalt and preparation method therefor |
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