CN103723947B - A kind of directly releasing type ecotype asphalt cold-repairing material additive and preparation method and application - Google Patents

A kind of directly releasing type ecotype asphalt cold-repairing material additive and preparation method and application Download PDF

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Publication number
CN103723947B
CN103723947B CN201310745313.5A CN201310745313A CN103723947B CN 103723947 B CN103723947 B CN 103723947B CN 201310745313 A CN201310745313 A CN 201310745313A CN 103723947 B CN103723947 B CN 103723947B
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cold
repairing material
lac
additive
asphalt
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CN103723947A (en
Inventor
王红玉
刘钢
邓国民
闫国杰
赫振华
李交
夏庆宇
王腾飞
袁月
徐韵淳
邱轶
陈文娟
马利志
李俊
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Shanghai Pudong Road & Bridge Group Co ltd
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SHANGHAI PUDONG ROAD BRIDGE CONSTRUCTION CO Ltd
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Abstract

The present invention relates to a kind of directly releasing type ecotype asphalt cold-repairing material additive and its preparation method and application, cold-repairing material additive is made up of lac 10wt%~50wt% and aromatic naphtha 50wt%~90wt%.Described preparation method is as follows: ethanol is heated to 30 DEG C~60 DEG C, is added by lac, dissolves 10~60min;Then the mixture system of lac with ethanol is added to the aromatic naphtha of 30 DEG C~60 DEG C, stirring mixing 30~60min;Finally, use negative pressure remove and reclaim ethanol, to obtain final product.Instant invention overcomes the cold-repairing material technology of existing asphalt with petroleum base polymerization species additive as main raw material(s), consumed resource is big, additive must be with deficiencies such as Colophonium or building stones high temperature premixs, by the asphalt cold-repairing material that the present invention is modified, there is low-temperature working good, the features such as frost resistance, anti-strip and adhesive aggregation performance are strong, and the preparation method of additive of the present invention is simple.

Description

A kind of directly releasing type ecotype asphalt cold-repairing material additive and preparation method And application
Technical field
The invention belongs to field of material technology used in road engineering, be specifically related to a kind of Colophonium mixing Material cold-repairing material additive and its preparation method and application.
Background technology
Along with developing rapidly of highway in China building cause, dark asphalt mixture pavement relaxes with its driving The plurality of advantages such as suitable, noise is little, pavement temperature is low, the most quickly replaces asphalt concrete pavement and is on active service, Become different brackets, the main choosings of different classes of road such as highway, town road, road in park Select.But, meanwhile, public transport also presents variation, heavy loading and big quantity The features such as change, this causes the most serious pressure to dark asphalt mixture pavement, thus reparation is broken Bad asphaltic road-mix surface course and extend pavement life have become as road field be concerned about key problem it One.
Cold-repairing material technology is a kind of high-tech material for road repair, is also the master of solving road surface layer destruction Want method and one of measure, can round-the-clock use, it is adaptable to study for a second time courses one has flunked each under any weather and environment Plant different types of road deck.Wherein asphalt cold-repairing material technology many with building stones, diesel oil and Petroleum base polymerization species additive is main raw material(s), can effectively repair asphaltic road-mix surface course, also Road surface service life can be extended, but this kind of technology is all with by the polymer or mixed of petrochemical industry materials synthesis Compound is main additive, and consumed resource is big, and these raw materials of what is more important are the most non-renewable. Additionally, polymerization species additive must be pre-mixed with hard pitch or building stones, its effect just can be played.
Therefore, for the road field that consumed resource is big, research and development one can directly throw in, Reproducible asphalt cold-repairing material additive has important economical and environmentally friendly meaning.
Summary of the invention
The technical problem to be solved overcomes the deficiencies in the prior art, it is provided that one can directly be thrown Put and reproducible cold-repairing material additive.
Present invention simultaneously provides the system of a kind of direct releasing type ecotype asphalt cold-repairing material additive Preparation Method and application.
For solving above technical problem, a kind of technical scheme that the present invention takes is as follows:
A kind of directly releasing type ecotype asphalt cold-repairing material additive, its by lac 10wt%~ 50wt% and aromatic naphtha 50wt%~90wt% composition.
According to the present invention, described lac is that lac insect draws the host tree resin natural tree of oozy purple Fat.Further, lac is by lac resin 70wt%~80wt%, waxiness 5wt%~6wt%, color Element 1wt%~3wt%, moisture 1wt%~3wt% and impurity 10~15% form, wherein, and lac resin Molecular weight be 500~2000, molecular structure unit as follows:
The another technical scheme that the present invention takes is: a kind of above-mentioned direct releasing type ecotype Colophonium mixes Closing the preparation method of material cold-repairing material additive, its method is implemented as follows: be heated in vapor tight tank by ethanol 30 DEG C~60 DEG C;Lac is added, dissolves 10~60min;Then by the mixing object of lac Yu ethanol System adds to the aromatic naphtha of 30 DEG C~60 DEG C, stirring mixing 30~60min;Finally, negative pressure is used Remove and reclaim ethanol, obtaining cold-repairing material additive.
The invention still further relates to above-mentioned direct releasing type ecotype asphalt cold-repairing material additive in drip Application in blue or green compound.
Further, described additive is directly thrown in the asphalt of 30 DEG C~60 DEG C.
Owing to taking above technical scheme, the present invention compared with prior art has the advantage that
The additive that the present invention provides overcomes the cold-repairing material technology of existing asphalt and gathers with petroleum base Compound class additive is main raw material(s), and consumed resource is big, and additive must be pre-with Colophonium or building stones high temperature The problem and shortage such as mixed, is that one can directly throw in regenerative additive, additive agent modified by the present invention The spies such as it is good that asphalt cold-repairing material has low-temperature working, and frost resistance, anti-strip and adhesive aggregation performance are strong Point, the effect that the polymerization species additive that can match in excellence or beauty completely is played;Additionally, the additive of the present invention Preparation method is simple.
Detailed description of the invention
In prior art, traditional asphalt concrete cold feed supplement additive with petroleum base polymer or mixture is Main, as the thermoplastic polymers such as SBS, SBR, EVA or mixture, this base polymer or mixture need Want hot conditions ability swell, and then be uniformly dispersed.Additionally, along with the exhaustion of fossil energy, this kind of product The space of product is compressed day by day.
In the present invention, what inventor was creative finds that-OH ,-COOH etc. that lac insect secretions enriches change Learn functional group and may replace petroleum base polymer or mixture, make the cryogenic conditions system of asphalt cold-repairing material For becoming a reality.On the one hand, lac insect secretions is a kind of environmental Renewable resource, has thermoplasticity concurrently And thermosetting, nontoxic to people, non-stimulated, can directly utilize, it is not necessary to the chemical industry that high temperature, high pressure etc. are harsh Building-up process, can process in the range of 30~60 DEG C and solidify asphalt, economic and environment-friendly;The opposing party Face, cold-repairing material additive prepared by the present invention, without premixing with Colophonium or building stones high temperature, saves a large amount of energy Source consumes.Specifically, the thermoplastic polymer such as SBS, SBR, EVA or mixture in Colophonium with molten Presented in swollen, fusion range high starting point, typically more than 180 DEG C, and lac not only has and drip The chemical functional groups such as-the OH ,-COOH that the blue or green compatibility is good, and its solution temperature scope is less than 100 DEG C, Therefore, the additive of the present invention dispersion effect in asphalt more preferably, is also need not be with Colophonium or stone The basic reason of material high temperature premix.Selecting aromatic naphtha in the present invention is to further improve and improving purple Glue dispersion effect in asphalt.
The cold-repairing material additive of the present invention directly can be thrown in into Colophonium, building stones, bavin in the range of 30~60 DEG C The mixed system of oil, easy to use.
Below in conjunction with specific embodiment, the present invention will be further described in detail, but the invention is not restricted to Following example.In following example, lac used is by lac resin 79.3wt%, waxiness 5.8wt%, color Element 2.2wt%, moisture 2.7wt% and impurity 10% form, wherein, and the molecular weight of described lac resin It is about 1500.
Embodiment 1:
100ml ethanol reagent is placed in hermetically sealed can, is heated to 50 DEG C, then 30g lac is put into dress Have in the hermetically sealed can of hot ethanol, dissolve lac 60min;To be dissolved complete after, by lac and ethanol reagent Mixture join in the 70g aromatic naphtha being previously heated to 50 DEG C, stirring mixing 40min, finally adopt Remove and reclaims that ethanol reagent is i.e. prepared can directly be invested in asphalt cold-repairing material by conventional negative pressure Additive.
Embodiment 2:
By 100ml ethanol reagent as in hermetically sealed can, it is heated to 60 DEG C, then 40g lac is put into dress Have in the hermetically sealed can of hot ethanol, dissolve lac 40min;To be dissolved complete after, by lac and ethanol reagent Mixture join in the 60g aromatic naphtha being previously heated to 60 DEG C, stirring mixing 55min, finally adopt Remove and reclaims that ethanol reagent is i.e. prepared can directly be invested in asphalt cold-repairing material by conventional negative pressure Additive.
Embodiment 3:
By 100ml ethanol reagent as in hermetically sealed can, it is heated to 48 DEG C, then 38g lac is put into dress Have in the hermetically sealed can of hot ethanol, dissolve lac 33min;To be dissolved complete after, by lac and ethanol reagent Mixture join in the 62g aromatic naphtha being previously heated to 48 DEG C, stirring mixing 45min, finally adopt Remove and reclaims that ethanol reagent is i.e. prepared can directly be invested in asphalt cold-repairing material by conventional negative pressure Additive.
Embodiment 4:
The purpose of the present embodiment is that investigating the additive prepared by embodiment 1 is directly invested in Colophonium mixing After material cold-repairing material, the property indices situation of cold-repairing material.Specifically include resistance to flaking, cohesiveness, low Temperature workability and frost resistance.
(1) low-temperature working and frost resistance
Spread 10kg asphalt cold-repairing material out enamel at 400mm × 400mm in a loose state In dish, it is paved into diameter 300mm, the thickness cake less than 50mm, puts-10 DEG C together with dish into Keeping 24h in refrigerator, at room temperature place after reaching room temperature, mix and stir with scoop after taking-up, scoop can hold Easily insert in sample, mix and stir conveniently.Cold-repairing material does not occur to condense caking phenomenon, illustrates that effective utilization is good Good.
(2) anti-strip
Use water-boiling method to carry out anti-strip test, take asphalt cold-repairing material 50g and be placed in 600ml beaker In, the 400ml that adds water boils and reaches 100 DEG C, carries out water-boiling method inspection, and during test, the speed with 1 week/s is used Glass rod stirs, and after continuing 3min, paper using drags for away floating asphalt membrane, outwells water, is fallen by compound Observing the peeling conditions of the asphalt membrane that stone surface is wrapped on blank sheet of paper, it is 97.6% that Colophonium wraps rate, Higher than code requirement.
(3) cohesiveness
800g cold-repairing material is loaded in Marshall die trial, is placed in 4 DEG C of thermostatic chambers 2~3h, right after taking-up Sample two sides is hit real 5 times, makes marshal piece, is placed on the sieve of sieve aperture 25mm after the demoulding, will Sieve is erect and is rolled 20 times, weighs the sample mass of residual in sieve.Sample residual rate is 89.3%, Far above code requirement.
Embodiment 5:
The purpose of the present embodiment is that investigating the additive prepared by embodiment 2 is directly invested in Colophonium mixing After material cold-repairing material, the property indices situation of cold-repairing material.Specifically include resistance to flaking, cohesiveness, low Temperature workability and frost resistance.
(1) low-temperature working and frost resistance
With reference to the experimental test mode in embodiment 4, mixture cold feed supplement seldom occurs to condense caking phenomenon, Show that effective utilization is good.
(2) anti-strip
With reference to cold-repairing material anti-strip test operation in embodiment 4, test obtains the Colophonium of cold-repairing material and wraps rate It is 96.3%, higher than code requirement.
(3) cohesiveness
Referring again to the operation of adhesive aggregation performance test in embodiment 4, the residual rate of cold-repairing material sample is 88.7%, also far above code requirement.
Performance explanation is had low-temperature working by the asphalt cold-repairing material that the present invention is additive agent modified Property good, the features such as frost resistance, anti-strip and adhesive aggregation performance are strong, this also illustrates that additive of the present invention is complete The effect that the polymerization species additive that can match in excellence or beauty is played.
Above the present invention is described in detail, its object is to allow and be familiar with the personage of this art Will appreciate that present disclosure and be carried out, can not limit the scope of the invention with this, all The equivalence that spirit according to the present invention is made changes or modifies, and all should contain the protection model in the present invention In enclosing.

Claims (6)

1. a direct releasing type ecotype asphalt cold-repairing material additive, it is characterised in that: described Cold-repairing material additive is made up of lac 10wt%~50wt% and aromatic naphtha 50wt%~90wt%.
Direct releasing type ecotype asphalt cold-repairing material additive the most according to claim 1, It is characterized in that: described lac is that lac insect draws host tree resin oozy purple natural resin.
Direct releasing type ecotype asphalt cold-repairing material additive the most according to claim 1, It is characterized in that: described lac is by lac resin 79.3wt%~80wt%, waxiness 5wt%~6wt%, color Element 1wt%~3wt%, moisture 1wt%~3wt% and impurity 10~15% form, wherein, and described lac The molecular weight of resin is 500~2000, molecular structure unit is as follows:
4. direct releasing type ecotype Colophonium as described in a claim any one of claims 1 to 3 mixes Close the preparation method of material cold-repairing material additive, it is characterised in that the method is implemented as follows: by ethanol airtight Tank is heated to 30 DEG C~60 DEG C;Described lac is added, dissolves 10~60min;Then by lac and second The mixture system of alcohol adds to the aromatic naphtha of 30 DEG C~60 DEG C, stirring mixing 30~60min;Finally, Use negative pressure remove and reclaim ethanol, obtain described cold-repairing material additive.
5. direct releasing type ecotype Colophonium as described in a claim any one of claims 1 to 3 mixes Close material cold-repairing material additive application in asphalt.
Application the most according to claim 5, it is characterised in that: described additive is directly thrown into In the asphalt of 30 DEG C~60 DEG C.
CN201310745313.5A 2013-12-30 2013-12-30 A kind of directly releasing type ecotype asphalt cold-repairing material additive and preparation method and application Active CN103723947B (en)

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CN100406508C (en) * 2004-10-29 2008-07-30 中国石油化工股份有限公司 Normal temperature modification additive for pavement asphalt and its preparation method and uses
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CA2797085C (en) * 2010-04-26 2017-07-25 Gala Industries, Inc. Continuous process for fractioning, combination, and recombination of asphalt components for pelletization and packaging of asphalt and asphalt-containing products

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Address after: 7th floor, No.3, Lane 701, chuanqiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201206

Patentee after: Shanghai Pudong Construction Co.,Ltd.

Address before: 201206 Shanghai city Pudong New Area Jialin Road No. 1028

Patentee before: SHANGHAI PUDONG ROAD & BRIDGE CONSTRUCTION Co.,Ltd.

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Address before: 7th floor, No.3, Lane 701, chuanqiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201206

Patentee before: Shanghai Pudong Construction Co.,Ltd.