CN104926172A - Oily aggregate-asphalt interface rust-preventing modifier as well as preparation method and application thereof - Google Patents
Oily aggregate-asphalt interface rust-preventing modifier as well as preparation method and application thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of surface modifiers of building materials, and discloses an oily aggregate-asphalt interface rust-preventing modifier as well as a preparation method and application thereof. The interface rust-preventing modifier comprises the following components in parts by weight: 5-10 parts of a coupling agent, 3-5 parts of oily film forming matter, 10-20 parts of epoxy resin, 1-3 parts of an antioxidant, 5-10 parts of a curing agent, 3-5 parts of a curing accelerator, 3-5 parts of a flexibilizer, 5-16 parts of an antirust agent, and 30-50 parts of an organic solvent. The interface rust-preventing modifier can be applied to the surface modification of aggregates for an asphalt mixture, effectively improves the strength of the asphalt mixture, improves the adhesion of the surfaces of aggregate and asphalt, prevents corrosion of a road surface, improves the pavement performance of roads, prolongs the service life of roads, reduces the maintenance cost, and has a wide application prospect on the aspects of road construction and the like.
Description
Technical field
The invention belongs to building material surface properties-correcting agent technical field, be specifically related to a kind of oiliness and gather materials-the antirust properties-correcting agent of asphalt interface and preparation method thereof and application.
Background technology
Current China is still in the peak period of high-grade highway construction, and bituminous pavement is generally used as main pavement structure form.The quality of quality of asphalt mixtures directly affects construction quality of pavement, and then affects the work-ing life on road surface.And gather materials in asphalt account for about 95% quality, be composition asphalt main material, the mechanical properties and performance of quality on compound of its quality has great impact.
Consider the importance of former material in asphalt of gathering materials, more research has been done for the road pavement performance gathered materials by China, and existing standard system proposes clear and definite technical requirements in all many-sides to gathering materials.Propose except specific requirement except to the specification of gathering materials (particle diameter, faller gill shape and mineral grating etc.) in " standard specification for construction and acceptance of highway asphalt pavement " (JTG F40-2004) of China, go back crush values that clear stipulaties gathers materials, wear(ing)value, soundness, polishing value, silt content and gather materials and the requirement of the aspect such as adhesivity of pitch.Require used gather materials should intensity high, wear resistance good, has good adhesivity again with pitch.The proposition of Specifications and requirement is with clear and definite, and the selecting properly gather materials to specification China and use, guarantee that the pavement performance of bituminous pavement has great guaranteeing role.
The regulation of existing standard system mainly concentrates on the aspect such as specification, physical and mechanical property gathered materials.In addition, the research in chemical element, usually according to silicon-dioxide (SiO
2) content the lithology of gathering materials (acid, alkalescence or neutral building stones) is defined.And for aspects such as other properties of chemical compositions gathered materials (chemical element component target), due to complicacy and the uncertainty of pitch and surface of aggregate effect, usually get the brush-off in research and engineer applied and be easy to be left in the basket or simplify, can not form relevant clear and definite technical indicator regulation.
But, just because of not enough to the research of the properties of chemical composition that gathers materials, cause the generation of the Random early Detection of current domestic many motorways.These infringements make express highway pavement quality greatly decline, and produce bad and serious impact, cause huge financial loss.Road surface get rusty be one one of them have a strong impact on the problem of road quality, there is large-area rust staining in part motorway completely whole road surface, gathering materials of extracting is divided into Steel Gray, white and redness three kinds, after tested, iron-holder is respectively 0.82%, 0.94% and 1.72%, and adhesivity index cannot meet code requirement all, wherein, the adhesivity that general rust red gathers materials is only 2 grades, and all the other two kinds is 3 grades.
For the highway pavement gone wrong, testing staff has extracted the sample that road surface gathers materials and has analyzed.Analyze discovery gather materials in some chemical composition (as iron-holder) can produce the performance of asphalt and have a strong impact on.Simultaneously, the each rocks (comprising diabase, basalt, diorite, grouan and sandstone) adopted in our nationwide entity project is at present all containing ferro element in various degree, its iron-holder is generally at about 2%-10%, but the content of the conventional ferro element that gathers materials of part is even far above more than 20%.But, not yet there is corresponding code regulations in domestic pavement of road design construction standard, cause road quality meeting potential in gathering materials the content of the chemical composition of tremendous influence all without clear stipulaties.Thus, launch larger engineering significance to be had to the research of relation between specified chemical composition and Asphalt Mixture Performance thus.How research is avoided gathering materials the destruction of middle objectionable constituent road pavement performance, for proper use ofly providing technical basis to what gather materials in pavement engineering project construction process from now on, take precautions against and control the generation of similar early disease, avoid causing huge economic and social benefit loss thus.Relevant achievement in research will be beneficial complement to existing national associated specifications.
Summary of the invention
In order to solve the shortcoming and defect part of above prior art, primary and foremost purpose of the present invention is to provide a kind of oiliness to gather materials the-antirust properties-correcting agent of asphalt interface.
Another object of the present invention is to provide above-mentioned oiliness to gather materials the-preparation method of the antirust properties-correcting agent of asphalt interface.
Another object of the present invention is to provide above-mentioned oiliness to gather materials the-application of the antirust properties-correcting agent of asphalt interface.
The object of the invention is achieved through the following technical solutions:
A kind of oiliness is gathered materials the-antirust properties-correcting agent of asphalt interface, comprises the component of following weight part:
Described coupling agent refers to silane coupling agent, preferred γ-aminopropyltrimethoxysilane (KH540), γ-aminopropyl triethoxysilane (KH550), 3-(2, 3-epoxy third oxygen) propyl trimethoxy silicane (KH560), γ-(methacryloxypropyl) propyl trimethoxy silicane (KH570), N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane (KH792), N-(β aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane (Si-602) or 3-(2, 3 epoxy third oxygen) hydroxypropyl methyl diethoxy silane (Si-563).
Described oiliness filmogen preferred polymeric oleum lini.
Described antioxidant comprises amine antioxidants, phenol antioxidant, thio-2 acid bay alcohol ester, thio-2 acid octadecanol ester, phosphorous acid phenylbenzene octyl group ester and tricresyl phosphite (nonyl phenyl) ester.
The preferred amine curing agent of described solidifying agent.
Described curing catalyst refers to that epoxy resin cure is with promotor, comprises aliphatic amide promotor or acid anhydrides promotor.
The preferred polyglycol ether of described toughner.
Described rust-preventive agent preferred alcohol amine and sour composite rust-preventive agent; Described thanomin comprises monoethanolamine, diethanolamine and trolamine; Described sour preferably octanoic acid.
Described organic solvent ethyl acetate, ethylene dichloride or sherwood oil.
Above-mentioned oiliness gathers materials-preparation method of the antirust properties-correcting agent of asphalt interface, comprise following preparation process:
(1) coupling agent, epoxy resin, toughner, oiliness filmogen, antioxidant, rust-preventive agent and part organic solvent are mixed, stirring reaction 3 ~ 7 hours under normal temperature, obtain component A;
(2) solidifying agent, curing catalyst and residue organic solvent are mixed, stirring reaction 3 ~ 7 hours under normal temperature, obtain B component;
(3) by component A and B component mixing, obtaining oiliness gathers materials-the antirust properties-correcting agent of asphalt interface.
Above-mentioned oiliness is gathered materials the-application of the antirust properties-correcting agent of asphalt interface in modified aggregate 's surface property used for asphalt mixture, embody rule process is: oiliness is gathered materials-atomization of asphalt interface antirust properties-correcting agent after, spray into and be equipped with in a mixing bowl of asphalt, modification is carried out to surface of aggregate.
Preparation method of the present invention and the product tool obtained have the following advantages and beneficial effect:
(1) oiliness of the present invention gather materials-the antirust properties-correcting agent of asphalt interface is by the interaction of each component, can better wrap on the uneven surface gathered materials, form the uniform film of one deck, make the two-phase interface of gathering materials originally-pitch, become-two the interface of properties-correcting agent-pitch three-phase that gathers materials, and there is the interaction of physical-chemical between adjacent two-phase, chemical bond is utilized to form interface transition layer between pitch, strengthen the adhesion gathered materials with pitch, make to gather materials and pitch close adhesion, prevent peeling off of asphalt membrane.
(2) oiliness of the present invention gather materials-the antirust properties-correcting agent of asphalt interface can cover surface of aggregate and form the uniform film of one deck in application process, surface of aggregate and air exclusion are opened, avoid oxygen in air to the corrosion of the middle metallic element that gathers materials, and the rust-preventive agent composition in the antirust properties-correcting agent in interface and antioxidant composition also can slow down or stop oxygen to corrode the metallic element in gathering materials, road surface is effectively suppressed to get rusty the generation of situation.
(3) the present invention directly to be got rusty the most serious place for road surface---gather materials-interface function of asphalt interface carries out modification, more concentrate, utilize the antirust properties-correcting agent in interface efficiently, targetedly, the intensity effectively improving asphalt, promote pitch and surface of aggregate adhesion property index while, prevent the corrosion that road surface produces, promote the pavement performance of highway, extend highway work-ing life, reduce maintenance cost, have broad application prospects in road construction etc.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
(1) 6 parts of (100g) KH570 silane coupling agents, 12 parts of E44 type epoxy resin, 3 parts of toughner polyglycol ethers, 3 parts of oiliness filmogen polymerization oleum lini, 3 parts of antioxidant thio-2 acid octadecanol esters, 5 parts of diethanolamine and 5 parts of sad rust-preventive agent and 15 parts of organic solvent ethyl acetate are mixed, stirring reaction 3 hours under normal temperature, obtains component A;
(2) 6 parts of solidifying agent hexanediamines, 3 parts of curing catalyst Tetra hydro Phthalic anhydrides and 15 parts of organic solvent ethyl acetate are mixed, stirring reaction 3 hours under normal temperature, obtain B component;
(3) by component A and B component mixing, obtaining oiliness gathers materials-the antirust properties-correcting agent of asphalt interface.
The oiliness of the present embodiment is gathered materials the-application of the antirust properties-correcting agent of asphalt interface in modified aggregate 's surface property used for asphalt mixture, and embody rule process is as follows:
Oiliness is gathered materials-atomization of asphalt interface antirust properties-correcting agent after, spray into and be equipped with in a mixing bowl of asphalt, modification is carried out to surface of aggregate.
The oiliness of the present embodiment gathers materials-and the rustless property of the antirust properties-correcting agent of asphalt interface tests by the following method:
Get two groups of iron ores, be of moderate size, often organize 9, wherein one group does not process, another group uses the oiliness of the present embodiment and gathers materials-and the antirust properties-correcting agent of asphalt interface carries out surface modification, then two groups of iron ores exposed in atmosphere and be placed in equivalent environment, placing 3 weeks, contrast the corrosion degree of two groups of iron ores.Result shows: in equivalent environment, through the identical time, do not use the iron ore surface rusty stain of the antirust properties-correcting agent in the present embodiment interface far away more than the iron ore used after the antirust properties-correcting agent in the present embodiment interface, illustrate that the antirust properties-correcting agent in interface of the present invention can improve-asphalt interface the problem of rustiness that gathers materials, delay the rusting rate of surface of aggregate.
The oiliness of the present embodiment gathers materials-the antirust properties-correcting agent of asphalt interface according to national sector standard---adhesion test method (T0616-1993) water-boiling method of highway engineering pitch and Asphalt Mixture Experiment code (JTG E-20-2011) medium pitch and coarse aggregate completes adhesivity rank test, result shows that its adhesion grade reaches 5 grades.
Embodiment 2
(1) 8 parts of (135g) KH792 silane coupling agents, 16 parts of E51 type epoxy resin, 4 parts of toughner polyglycol ethers, 4 parts of oiliness filmogen polymerization oleum lini, 3 parts of antioxidant phosphorous acid phenylbenzene octyl group esters, 5 parts of trolamines and 6 parts of sad rust-preventive agent and 20 parts of organic solvent sherwood oils are mixed, stirring reaction 4 hours under normal temperature, obtains component A;
(2) 8 parts of solidifying agent hexanediamines, 4 parts of curing catalyst Tetra hydro Phthalic anhydrides and 20 parts of organic solvent sherwood oils are mixed, stirring reaction 4 hours under normal temperature, obtain B component;
(3) by component A and B component mixing, obtaining oiliness gathers materials-the antirust properties-correcting agent of asphalt interface.
The oiliness of the present embodiment is gathered materials the-application of the antirust properties-correcting agent of asphalt interface in modified aggregate 's surface property used for asphalt mixture, and embody rule process is as follows:
Oiliness is gathered materials-atomization of asphalt interface antirust properties-correcting agent after, spray into and be equipped with in a mixing bowl of asphalt, modification is carried out to surface of aggregate.
By the method for embodiment 1, the present embodiment oiliness is gathered materials the-rustless property of the antirust properties-correcting agent of asphalt interface and adhere to grade and test, result shows, oiliness of the present invention gathers materials-and the antirust properties-correcting agent of asphalt interface significantly can improve-asphalt interface the problem of rustiness that gathers materials, delay the rusting rate of surface of aggregate, it adheres to grade and reaches 5 grades.
Embodiment 3
(1) 10 parts of (170g) KH560 silane coupling agents, 20 parts of E128 type epoxy resin, 5 parts of toughner polyglycol ethers, 5 parts of oiliness filmogen polymerization oleum lini, 3 parts of antioxidant thio-2 acid bay alcohol esters, 8 parts of monoethanolamines and 8 parts of sad rust-preventive agent and 25 parts of organic solvent ethylene dichloride are mixed, stirring reaction 7 hours under normal temperature, obtains component A;
(2) 10 parts of solidifying agent hexanediamines, 5 parts of curing catalyst Tetra hydro Phthalic anhydrides and 25 parts of organic solvent ethylene dichloride are mixed, stirring reaction 7 hours under normal temperature, obtain B component;
(3) by component A and B component mixing, obtaining oiliness gathers materials-the antirust properties-correcting agent of asphalt interface.
The oiliness of the present embodiment is gathered materials the-application of the antirust properties-correcting agent of asphalt interface in modified aggregate 's surface property used for asphalt mixture, and embody rule process is as follows:
Oiliness is gathered materials-atomization of asphalt interface antirust properties-correcting agent after, spray into and be equipped with in a mixing bowl of asphalt, modification is carried out to surface of aggregate.
By the method for embodiment 1, the present embodiment oiliness is gathered materials the-rustless property of the antirust properties-correcting agent of asphalt interface and adhere to grade and test, result shows, oiliness of the present invention gathers materials-and the antirust properties-correcting agent of asphalt interface significantly can improve-asphalt interface the problem of rustiness that gathers materials, delay the rusting rate of surface of aggregate, it adheres to grade and reaches 5 grades.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. oiliness is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: the antirust properties-correcting agent in described interface comprises the component of following weight part:
2. a kind of oiliness according to claim 1 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described coupling agent refers to silane coupling agent; Described oiliness filmogen refers to polymerization oleum lini.
3. a kind of oiliness according to claim 2 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described silane coupling agent refers to γ-aminopropyltrimethoxysilane, γ-aminopropyl triethoxysilane, 3-(2,3-epoxy third oxygen) propyl trimethoxy silicane, γ-(methacryloxypropyl) propyl trimethoxy silicane, N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, N-(β aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane or 3-(2,3 epoxy third oxygen) hydroxypropyl methyl diethoxy silane.
4. a kind of oiliness according to claim 1 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described antioxidant refers to amine antioxidants, phenol antioxidant, thio-2 acid bay alcohol ester, thio-2 acid octadecanol ester, phosphorous acid phenylbenzene octyl group ester or tricresyl phosphite (nonyl phenyl) ester.
5. a kind of oiliness according to claim 1 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described solidifying agent refers to amine curing agent; Described curing catalyst refers to aliphatic amide promotor or acid anhydrides promotor.
6. a kind of oiliness according to claim 1 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described toughner refers to polyglycol ether; Described rust-preventive agent refers to thanomin and sour composite rust-preventive agent.
7. a kind of oiliness according to claim 6 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described thanomin refers to monoethanolamine, diethanolamine or trolamine; It is sad that described acid refers to.
8. a kind of oiliness according to claim 1 is gathered materials the-antirust properties-correcting agent of asphalt interface, it is characterized in that: described organic solvent refers to ethyl acetate, ethylene dichloride or sherwood oil.
9. the oiliness described in any one of claim 1 ~ 8 gathers materials-preparation method of the antirust properties-correcting agent of asphalt interface, it is characterized in that comprising following preparation process:
(1) coupling agent, epoxy resin, toughner, oiliness filmogen, antioxidant, rust-preventive agent and part organic solvent are mixed, stirring reaction 3 ~ 7 hours under normal temperature, obtain component A;
(2) solidifying agent, curing catalyst and residue organic solvent are mixed, stirring reaction 3 ~ 7 hours under normal temperature, obtain B component;
(3) by component A and B component mixing, obtaining oiliness gathers materials-the antirust properties-correcting agent of asphalt interface.
10. the oiliness described in any one of claim 1 ~ 8 is gathered materials the-application of the antirust properties-correcting agent of asphalt interface in modified aggregate 's surface property used for asphalt mixture, it is characterized in that embody rule process is: oiliness is gathered materials-atomization of asphalt interface antirust properties-correcting agent after, spray into and be equipped with in a mixing bowl of asphalt, modification is carried out to surface of aggregate.
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| CN113563692A (en) * | 2021-06-02 | 2021-10-29 | 长安大学 | Modifier for improving stability of steel slag aggregate and preparation method thereof |
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| CN104926172B (en) | 2017-03-01 |
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Denomination of invention: Oily aggregate-asphalt interface rust-preventing modifier as well as preparation method and application thereof Effective date of registration: 20200119 Granted publication date: 20170301 Pledgee: Bank of China Limited by Share Ltd Shunde branch Pledgor: GUANGDONG GT-TECH ROAD MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2020980000149 |
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