CN103421371A - Heat-reflection coating of asphalt pavement - Google Patents
Heat-reflection coating of asphalt pavement Download PDFInfo
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- CN103421371A CN103421371A CN2013102474949A CN201310247494A CN103421371A CN 103421371 A CN103421371 A CN 103421371A CN 2013102474949 A CN2013102474949 A CN 2013102474949A CN 201310247494 A CN201310247494 A CN 201310247494A CN 103421371 A CN103421371 A CN 103421371A
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Abstract
The invention relates to a heat-reflection coating of an asphalt pavement. The coating comprises the following components in parts by weight: 41-126 parts of mixed resin system, 11-54 parts of heat-reflection filler, 6-29 parts of light-weight calcium carbonate, 6-14 parts of talcum powder, 0.5-12 parts of dispersant and 1.5-13.5 parts of initiator. The heat-reflection coating has a stronger capacity of resisting vehicle load effect and high wear resistance, and is excellent in construction performance, good in adhesive force on pavement, and good in cooling effect.
Description
Technical field
The invention belongs to the pavement material technical field, be specifically related to a kind of for heat reflection coating for bituminous pavement.
Background technology
Bituminous pavement is to do binder bonding mineral aggregate with bituminous material to build the pavement structure that surface layer and all kinds of basic unit and bed course form, thus because of its color be that black is called again dark-coloured pavement.Just because of its road surface color, be black, solar absorptance, up to 0.85～0.95, therefore has higher solar heat receptivity.In summer, under the lasting thermal radiation effect of the sun, bituminous pavement absorbs a large amount of heats and is accumulated in pavement structure, makes pavement temperature far away higher than temperature.
Premature damage of bituminous pavement on expressway phenomenon main manifestations is: Water Damage, loose, rut, crack, bellding etc.The generation of rut, to destroy original pavement structural strength and bring out other diseases, rainy day also will produce ponding in rut or gather ice phenomenon in rut winter, this will cause the pavement skid resistance ability to descend traffic safety is produced and threatens etc., and this high-temperature stability to bituminous pavement is had higher requirement.Known by the origin cause of formation of analyzing the pavement track appearance, high temperature is the most direct inducement that rut produces, and high temperature makes the pitch deliquescing, and the bituminous concrete stiffness descends, and causes the depression of bearing force of bituminous pavement.Just because of this, when solving the rut problem of bituminous pavement, mainly take to improve the technical measures of stability at high temperature of asphalt mixture at present.By improving the resistance to elevated temperatures of pitch, or adopt extruded aggregate aggregate grading etc. to improve the rutting resistance of asphalt.Engineering practice proves that the application of these technology also may not fundamentally solve the rut problem.
It is the selectivity solar heat reflection paint for the bituminous pavement polychrome that CN102093764A discloses a kind of.This invention coating comprises that following each component forms: hybrid resin system 60～80%, compound color stuffing 15～35%, dispersion agent 0.5～2%, anti-settling agent 0.2～3%, initiator with coating quality than 0.5～3.
At present, the researcher mainly concentrates on by pitch, such as SBS, PR etc., adding the high-temperature behavior that properties-correcting agent improves pitch or asphalt for problems such as ruts both at home and abroad, in addition by changing mixture material structure formation as SMA etc., thereby improve the rut problem.
Because there is catabiosis in pitch class material, the performance of most of modifying asphalt and compound is performance degradation As time goes on just, still can make the bituminous pavement high-temperature stability descend.Only have by existing pavement maintenance is solved to problems, so not only caused waste economically also on guaranteeing the unimpeded great impact that caused of driving a vehicle.In addition, the bituminous pavement after some interpolation properties-correcting agent can not realize that pavement recycling is also puzzlement road worker's a difficult problem.
Summary of the invention
The object of the invention is to the problem for prior art, develop a kind of heat reflection coatings that is applicable to bituminous pavement.This coating has high Solar reflectance, good heat-insulation effect, and stable performance, with low cost, be suitable for multi-form bituminous pavement.
A kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
A kind of or the mixtures at least two kind of hybrid resin system of the present invention in acrylic resin, acrylic resin modified, epoxy resin or unsaturated polyester resin are dissolved in methyl methacrylate and/or butyl methacrylate.Described hybrid resin system has stronger opposing Vehicle Load and abrasion resisting performance, and its workability is good simultaneously.Its parts by weight can select 42.2～124,60～105,73～90,85 etc.
Coating of the present invention resin used is owing to using monomer mixed solution as thinner, on the one hand, can adjusting coating viscosity meet construction requirement, improve painting work, on the other hand, due to the monomer mixed solution molecular weight, surface tension is little, can be penetrated in the space of bituminous pavement, improve wear resistance after solidifying, in addition because resin polymerization reaction take place in solidification process discharges certain heat, this part heat can make monomer generation polymerization under the effect of initiator, can reduce coating and produce large calorimetric in solidification process, accumulating in coating inside causes pitch at high temperature to produce and come off.
High reflection filler of the present invention is the mixture of a kind of in hollow beads, titanium dioxide, zinc oxide or barium sulfate or at least two kinds, hollow beads for example, the mixture of titanium dioxide and zinc oxide, the mixture of hollow beads, zinc oxide and barium sulfate, further preferred hollow beads.Its parts by weight can select 12.1～52.5,18～42,25～35,28～31,29 etc.
Coating of the present invention also comprises anti-settling agent.Described anti-settling agent can be selected coating anti-settling agent commonly used, organobentonite for example, and polyolefin-wax, the mixture of a kind of in modified hydrogenated Viscotrol C or polyamide wax or at least two kinds, be preferably aerosil.Anti-settling agent can improve the package stability of coating, has splendid result of prevention in coating system, can improve the thixotropy of coating.Aerosil is that silicon tetrachloride is hydrolyzed and makes in oxyhydrogen flame.Its granularity is little, and specific surface area is large, on surface with silanol.These silanol groups can form hydrogen bond with contiguous aerosil particle interphase interaction, and hydrogen bond action makes it form thixotroping shape structure.Aerosil is a kind of desirable anti-settling agent, very effective for the precipitation that prevents pigment in coating system.Particularly, for the mill base system, add in right amount and will greatly improve the stability of mill base, and can reduce the amount of wetting dispersing agent, with the suitability that improves mill base and reduce the impact of mill base on the coating system precipitation.
Described coating also comprises film coalescence aid, and described film coalescence aid is preferably ten diester alcohols film coalescence aid, more preferably 2,2, and 4-trimethylammonium-1,3-pentanediol mono isobutyrate.This film coalescence aid has good coalescent performance, can effectively reduce the minimum film-forming temperature of latex, sticking power, smooth coating degree, luminance brightness, tint permanence, weathering resistance and the scrub performance of raising coating.
Described dispersion agent is polyoxyethylene glycol.The polyoxyethylene glycol series product are nontoxic, nonirritant, have good water-solublely, and with many organic matter components, good intermiscibility arranged.They have good oilness, moisture retention, dispersiveness, caking agent, static inhibitor and softening agent etc., in the industries such as makeup, pharmacy, chemical fibre, rubber, plastics, papermaking, paint, plating, agricultural chemicals, metal processing and food-processing, application are very widely all arranged.Its parts by weight can select 1.02～10.8,3～8,4.6～7,5 etc.
Initiator of the present invention is Diisopropyl azodicarboxylate.Diisopropyl azodicarboxylate is oil-soluble azo initiator, and the azo-initiator stable reaction is first order reaction, there is no side reaction, and relatively good control, so be widely used in high molecular research and production.Such as monomer polymerization initiators such as vinylchlorid, vinyl acetate between to for plastic, vinyl cyanide, also can be used as polyvinyl chloride, polyolefine, Polyurethane, polyvinyl alcohol, vinyl cyanide and divinyl and benzene second multipolymer, polymeric polyisocyanate, polyvinyl acetate (PVA), poly-.The whipping agent of acid amides and polyester etc.Its parts by weight can select 2.1～12.5,4～11,5.5～8.7,6～7 etc.
As the preferred technical solution of the present invention, described coating comprises following component by weight:
As the most preferred technical scheme of the present invention, described coating comprises following component by weight:
In the present invention, resin used has stronger opposing Vehicle Load and wear resistance, and its workability is good simultaneously.Height is reflected to filler and other auxiliary agents add in resin, by mechanical stirring, form finished product after blend.Select suitable smearing or Spray painting tool after adding solidifying agent according to practical situation during use, it evenly is coated with and is contained in bituminous pavement, through certain hour post polymerization film forming, treat curing time open to traffic later.
With bituminous pavement in the past, with solar heat reflection paint, compare, coating of the present invention there is selectivity solar heat reflection function, only can make up certain wavelength region may in sun heat radiation is had to the deficiency of reflection, the heat reflection better effects if.Utilize Diisopropyl azodicarboxylate as initiator, stable reaction, do not have side reaction, relatively good control, thus make preparation of construction simple, easy construction is flexible, and quality is guaranteed.
Embodiment
Embodiment 1
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Embodiment 2
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Epoxy resin and unsaturated polyester resin are dissolved in to formation hybrid resin system in butyl methacrylate.
Embodiment 3
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Unsaturated polyester resin is dissolved in butyl methacrylate and forms the hybrid resin system.
Embodiment 4
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Epoxy resin is dissolved in methyl methacrylate and butyl methacrylate and forms the hybrid resin system.
Embodiment 5
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Acrylic resin and acrylic resin modified being dissolved in methyl methacrylate are formed to the hybrid resin system.
Embodiment 6
In the present embodiment, a kind of heat reflection coating for bituminous pavement, described coating comprises following component by weight:
Acrylic resin modified being dissolved in butyl methacrylate formed to the hybrid resin system.
The comparative example 1
In this Comparative Examples, formulation for coating material by following mass ratio is:
The comparative example 2
In this Comparative Examples, formulation for coating material by following mass ratio is:
The embodiment of the present invention 1～5 and Comparative Examples 1,2 are coated on to bituminous pavement of the same race, detect the maximum temperature difference on road surface before and after applying:
Applicant's statement, the person of ordinary skill in the field is on the basis of above-described embodiment, concrete content point value by above-described embodiment component, combined with the technical scheme of summary of the invention part, thereby the new numerical range produced, be also one of record scope of the present invention, the application, for making specification sheets simple and clear, is no longer enumerated these numerical ranges.
Claims (10)
1. a heat reflection coating for bituminous pavement, is characterized in that, described coating comprises following component by weight:
2. coating according to claim 1, it is characterized in that, a kind of or mixtures at least two kind of described hybrid resin system in acrylic resin, acrylic resin modified, epoxy resin or unsaturated polyester resin are dissolved in methyl methacrylate and/or butyl methacrylate.
3. coating according to claim 1 and 2, is characterized in that, described high reflection filler is the mixture of a kind of in hollow beads, titanium dioxide, zinc oxide or barium sulfate or at least two kinds, further preferred hollow beads.
4. according to the described coating of one of claim 1-3, it is characterized in that, described coating also comprises anti-settling agent.
5. coating according to claim 4, is characterized in that, described anti-settling agent is aerosil.
6. according to the described coating of one of claim 1-5, it is characterized in that, described coating also comprises film coalescence aid, and described film coalescence aid is preferably ten diester alcohols film coalescence aid.
7. according to the described coating of one of claim 1-6, it is characterized in that, described dispersion agent is polyoxyethylene glycol.
8. according to the described coating of one of claim 1-7, it is characterized in that, described initiator is Diisopropyl azodicarboxylate.
9. according to the described coating of one of claim 1-8, it is characterized in that, described coating comprises following component by weight:
10. according to the described coating of one of claim 1-9, it is characterized in that, described coating comprises following component by weight:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102474949A CN103421371A (en) | 2013-06-20 | 2013-06-20 | Heat-reflection coating of asphalt pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102474949A CN103421371A (en) | 2013-06-20 | 2013-06-20 | Heat-reflection coating of asphalt pavement |
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| CN103421371A true CN103421371A (en) | 2013-12-04 |
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| CN2013102474949A Pending CN103421371A (en) | 2013-06-20 | 2013-06-20 | Heat-reflection coating of asphalt pavement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047889A (en) * | 2017-12-29 | 2018-05-18 | 长安大学 | A kind of bituminous paving hides hot pavement material and preparation method thereof |
| CN108659431A (en) * | 2018-04-24 | 2018-10-16 | 重庆渝茁科技有限公司 | Bituminous paving heat-reflecting material |
| CN108774374A (en) * | 2018-04-24 | 2018-11-09 | 重庆渝茁科技有限公司 | Thermal resistance rut resisting method for bituminous paving |
| CN109575615A (en) * | 2018-03-13 | 2019-04-05 | 师建辉 | A kind of sponge city hot pavement material of bituminous pavement screening and preparation method thereof |
| CN114213888A (en) * | 2022-01-04 | 2022-03-22 | 西安华歌交通设施工程设备有限公司 | Marking paint |
-
2013
- 2013-06-20 CN CN2013102474949A patent/CN103421371A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047889A (en) * | 2017-12-29 | 2018-05-18 | 长安大学 | A kind of bituminous paving hides hot pavement material and preparation method thereof |
| CN109575615A (en) * | 2018-03-13 | 2019-04-05 | 师建辉 | A kind of sponge city hot pavement material of bituminous pavement screening and preparation method thereof |
| CN108659431A (en) * | 2018-04-24 | 2018-10-16 | 重庆渝茁科技有限公司 | Bituminous paving heat-reflecting material |
| CN108774374A (en) * | 2018-04-24 | 2018-11-09 | 重庆渝茁科技有限公司 | Thermal resistance rut resisting method for bituminous paving |
| CN108774374B (en) * | 2018-04-24 | 2021-04-27 | 重庆渝茁科技有限公司 | Heat-resistant and anti-rutting method for asphalt pavement |
| CN114213888A (en) * | 2022-01-04 | 2022-03-22 | 西安华歌交通设施工程设备有限公司 | Marking paint |
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Application publication date: 20131204 |