CN101235208A - Asphalt capable of being heated by microwave and preparation method thereof - Google Patents
Asphalt capable of being heated by microwave and preparation method thereof Download PDFInfo
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- CN101235208A CN101235208A CNA2008100600984A CN200810060098A CN101235208A CN 101235208 A CN101235208 A CN 101235208A CN A2008100600984 A CNA2008100600984 A CN A2008100600984A CN 200810060098 A CN200810060098 A CN 200810060098A CN 101235208 A CN101235208 A CN 101235208A
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Abstract
Asphalt which can be heated by microwaves and a preparation process are provided. Asphalt which can be heated by microwaves comprises asphalt and modified asphalt, the characteristic is that asphalt further comprises microwave absorbing material which is ferrite, active carbon, silicon carbide whisker, aluminum oxide and titanium dioxide, wherein proportion of each constituent is 86.1%-93.7% asphalt and modified asphalt, 1.5%-4.2% ferrite, 1.5%-4.2% active carbon, 1.4%-2.1% silicon carbide whisker, 1.4%-2.1% aluminum oxide and 0.5%-1.3% titanium dioxide. The preparation process comprises adding ferrite, active carbon, silicon carbide whisker, aluminum oxide and titanium dioxide according to the proportion after heating up asphalt to 200 DEG C, agitating for 60 minutes, milling 30 minutes by a colloidal mill, pouring into modified asphalt material, generally heating up to 150 DEG C, pouring into mould after agitating, cooling down to package. The asphalt can meet the requirement of in-situ fritting asphalt, thereby reaching the temperature which is required by construction.
Description
Technical field
The present invention relates to pitch of a kind of available microwave heating and preparation method thereof.
Background technology
Pitch is good foundation construction material, have waterproof, do not absorb water, series of advantages such as non-conductive, corrosion-resistant, good cohesiveness and shock resistance.It is again the tankage after the petroleum refining, and low price, has bonding, waterproof and rot-resistant effect.As building materials and raw material, be widely used in as communications and transportation (road, railway, aviation etc.), construction industry, agricultural, hydro project, industry (extractive industry, production), every profession and trade such as civilian.The bituminous shortcoming is the susceptibility and the weather unstable of temperature.Modified-high polymer through decades is greatly improved asphalt performance, and modified asphalt material becomes the civil construction engineering and is applied to waterproof, impervious, rot-resistant main raw.Because bituminous physical property, normal temperature show good elasticity and snappiness again, can show as good flowability, wetting property after its heating.Site operation needs on-the-spot heating.Past is to implement site operation with the firewood heating always, because the raising of building level and the requirement of safety, fire-fighting and management, country prohibites the on-the-spot naked light in construction site and endures burning pitch.Make on-the-spot cauldron burn and endure impossible that hot melt becomes.
This just makes cold construction of bituminous composition and plant produced modified bituminous pitch coiled material that very big development has been arranged.Solvent-borne type modifying asphalt coating is adopted in the cold construction of bituminous composition, and brushing becomes waterproof coating with water-latex type modifying asphalt coating.But water-latex type modifying asphalt coating solid content is low, has only 50-60%, can not thickly be coated with, and multipass brushing speed of application is slow, and curing time is long, and water resistance is poor; The solvent-borne type modifying asphalt paint waste energy produces environmental pollution, causes that easily fire burns.
Present hot-melting type modifying asphalt coating heating means, as electrothermic type, combustion gas and fuel oil type, because pitch thermal conductivity little (bituminous thermal conductivity 0.756w/ (m.k)), heat transfer property is poor, and its surface tension and viscosity are very big, have limited to flow.The border is zoom, charing, and inside remains solid.If conduct as medium by thermal oil, though solved the charing problem, not only strengthened the stove and accessory volume and weight widely, prolonged heat-up time more widely.And can't use.
SBS, APP coiled material that modified bituminous pitch coiled material such as existing market are popular.It wants flame spray gun to carry out on-the-spot surperficial hot melt, needs naked light, and the technical requirements height easily makes the coking of surface heat melten gel.Web width has only one meter, and overlap joint is many during laying, because of the base shape requirement, needs cutting, has more strengthened the amount of overlap joint, causes seam waterproof hidden danger easily.
It is tackiness agent that neoprene is adopted in the stickup of polymer coiled material and basic unit, its poor water resistance.Be easy to cause waterproof to fail because of coming unstuck.The bonding of polymer coiled material becomes the key of waterproof quality.
The problem that these material properties exist and the deficiency of technology have limited the raising of waterproofing quality and perfect, are badly in need of proposing a complete scheme and solve the problems referred to above.
The advantage of on-the-spot hot melt modifying asphalt coating:
1, this coating can seal the basic unit of waterproof layer, and can overcome basic unit's strain cracking, waterproof effect the best, and solid content is the highest, and unit elongation is big, and low temperature properties is good.One～two time construction gets final product, and makes speed of application accelerate 5～6 times than cold construction solvent-borne type modifying asphalt coating and water-latex type modifying asphalt coating.Duration shortens tens times (it does not need preserving period).
2, construction environment requires lowly, utilizes its film-forming properties, be not afraid of shower (can brush before raining) but weather proof execution is speeded up the work, construct when suitable many showers of operating condition and low temperature.
3 and the compound use of polymer coiled material, the tack coat that promptly is coiled material is again simultaneously waterproof layer and coiled material is compound makes " be coated with---volume " complex waterproof layer, gives full play to material characteristics separately, has solved a seepage difficult problem, and this is one to create greatly.Improve good waterproof effect greatly and reduced cost again.
4, construction back forms complete waterproof layer and has overcome the defective that coiled material overlaps easy seepage.
5, material is cheap, and comprehensive cost is low.
Summary of the invention
The objective of the invention is to provide pitch of a kind of available microwave heating and preparation method thereof, and the pitch of this available microwave heating can satisfy the requirement of on-the-spot hot-melt asphalt, makes the temperature that reaches its construction.
The technical scheme that realizes the object of the invention is, a kind of pitch of available microwave heating, it comprises pitch and modifying asphalt, characteristics are also to comprise the absorption microwave material, described absorption microwave material is ferrite, activated carbon, silicon carbide whisker, aluminum oxide and titanium dioxide, proportioning between each component is: pitch and modifying asphalt 86.1%-93.7%, ferrite 1.5%-4.2%, activated carbon 1.5%-4.2%, silicon carbide whisker 1.4%-2.1%, aluminum oxide 1.4%-2.1%, titanium dioxide, 0.5%-1.3%.
The pitch of described available microwave heating adopts the following step moulding: add ferrite, activated carbon, silicon carbide whisker, aluminum oxide and titanium dioxide according to the above ratio after a certain amount of pitch is heated to 200 ℃, stirred 60 minutes, it is levigate to advance colloidal mill 30 minutes, pour in the modified asphalt material, totally be heated to 150 ℃, stir the back to going in the mould cooling packing.
Microwave frequency is about 300MHz～300GHz, i.e. the hertzian wave of wavelength in 100cm～0.1cm scope.Can penetration insulator medium, directly energy emission to the material that dielectric properties is arranged, the energy of microwave is absorbed by material the time, and changes heat energy into, microwave heating is the monolithic devices heating, its thermo-efficiency is the highest.Thermo-efficiency is up to 80%
The interaction of natural material of scientific discovery and the microwave form that can roughly be divided three classes:
1, conductor microwave reflection---the metallic reflection micro-wave energy is not heated.Can be used for making the cavity of microwave apparatus and the material of shell.
2, isolator transmission microwave---many material transmission microwaves and not being heated can be made into the good insulation performance body, as: the sensor material in the microwave cavity, closed reaction vessel material etc.
3, dielectric absorption microwave---these absorbed micro-wave energies also are heated.
The main component of petroleum pitch is colloid and bituminous matter, the stable colloidal dispersion that it is made up of stable hydrocarbon, aromatic hydrocarbons, colloid, bituminous matter.The gelationus molecular weight is generally 1000～2000, and C/H (atomic ratio) is about 1.4～1.7; The asphaltene molecules amount is about 2000～6000, and C/H (atomic ratio) is about 1.1～1.4; Mostly molecule is ring texture, mostly is condensed ring system.Comprise four kinds of compositions such as oil content, colloid, bituminous matter and wax.Pitch is the good insulation performance body, non-polar material.Through evidence, unfilled bitumen absorbs microwave hardly.
Core of the present invention is that asphalt modification is become dielectric medium.Improve the electromagnetic consumable when microwave enters pitch, converted the electromagnetic energy of microwave to heat energy, kept the bituminous performance simultaneously again.
According to microwave principle, the DIELECTRIC CONSTANT of material, dielectric loss factor ε ", magnetic permeability μ and dielectric loss angle tangent tan δ be big more, the absorption of microwave is good more.The loss of microwave is just big more.
The mechanism of the loss of microwave has 3 classes: the one, and the resistor-type loss relevant with material electric conductivity; The 2nd, the dielectric loss relevant with electropolarization; The 3rd, the magnetic loss relevant with the dynamic magnetization process; Select the heat modification material need take all factors into consideration multiple loss.Could accelerate temperature improves.Selected material is added in the pitch in proportion, and in the environment of microwave, it mixes material and form countless focuses, rapid heating pitch in pitch.Improve the bituminous bulk temperature.
The invention has the beneficial effects as follows on-the-spot hot melt processing, directly the shop is scraped film forming or is pasted coiled material, once survives, and greatly the reduction of erection time, has solved sealing basic unit effectively, has overcome base course crack and has caused the drawing crack waterproof layer, has improved the waterproof reliability; The many usefulness of one material are to be coated with rete, are again the coiled material tack coats, and it is compound, complementary that formation is coated with a volume, given full play to the advantage and the characteristics of material separately, and technology is easy, and the energy rapid construction does not need maintenance, and the duration is short.
Specific embodiments:
50 kilograms of pitches are heated to add 12.6～27.8 kilograms of absorption microwave materials of preparation according to the above ratio after 200 ℃, stirred 60 minutes, it is levigate to advance colloidal mill 30 minutes, pour in 150 kilograms of modified asphalt materials, totally be heated to 150 ℃, to going in 150 * 150mm mould, lower the temperature and pack after the stirring.
Claims (4)
1, pitch of a kind of available microwave heating and preparation method thereof, it comprises pitch and modifying asphalt, it is characterized in that it also comprises the absorption microwave material.
2, according to the pitch of a kind of available microwave heating of claim 1 regulation, it is characterized in that absorbing microwave material and form by ferrite, activated carbon, silicon carbide whisker, aluminum oxide and titanium dioxide.
3, according to a kind of pitch of available microwave heatings of claim 1 or 2 regulations, it is characterized in that the ratio of each component is: pitch and modifying asphalt 86.1%-93.7%, ferrite 1.5%-4.2%, activated carbon 1.5%-4.2%, silicon carbide whisker 1.4%-2.1%, aluminum oxide 1.4%-2.1%, titanium dioxide, 0.5%-1.3%.
4, according to the bituminous preparation method of a kind of available microwave heating of claim 1 regulation, it is characterized in that a certain amount of pitch is heated to the absorption microwave material that adds ferrite, activated carbon, silicon carbide whisker, aluminum oxide and titanium dioxide composition after 200 ℃, stirred 60 minutes, advance colloidal mill mixed in 30 minutes, pour in the modified asphalt material, totally be heated to 150 ℃, stir the back to going in the mould cooling packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100600984A CN101235208A (en) | 2008-03-06 | 2008-03-06 | Asphalt capable of being heated by microwave and preparation method thereof |
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| CNA2008100600984A CN101235208A (en) | 2008-03-06 | 2008-03-06 | Asphalt capable of being heated by microwave and preparation method thereof |
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| CN101235208A true CN101235208A (en) | 2008-08-06 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724280B (en) * | 2009-12-07 | 2012-01-04 | 长安大学 | Method for preparing road asphalt suitable for microwave heating |
| CN102732155A (en) * | 2012-07-20 | 2012-10-17 | 项晓睿 | Macromolecule waterproof coating capable of being subjected to microwave heating and preparation method thereof |
| CN103396672A (en) * | 2013-08-19 | 2013-11-20 | 长安大学 | Heat-conducting asphalt composite material and preparation method thereof |
| CN104402314A (en) * | 2014-10-27 | 2015-03-11 | 长安大学 | Bituminous pavement mixture for using microwave to remove ice and snow and preparation method thereof |
| CN105036614A (en) * | 2015-08-04 | 2015-11-11 | 同济大学 | Bituminous concrete capable of self-healing fast under microwave action, manufacturing method and repairing method thereof |
| WO2016193082A1 (en) | 2015-06-03 | 2016-12-08 | Harald Heinz Peter Benoit | Asphalt composition and method for producing and/or renovating at least one asphalt surface layer |
| CN108559296A (en) * | 2018-05-15 | 2018-09-21 | 苏州太星新材料科技有限公司 | A kind of Si（B）Fiber C high-viscosity high-elasticity asphalt modifying agent and its preparation and application |
| CN109627792A (en) * | 2018-11-30 | 2019-04-16 | 湖南鑫长胜材料科技有限公司 | A kind of mist sealing material, preparation method and application |
| CN110095503A (en) * | 2019-05-13 | 2019-08-06 | 合肥工业大学 | A kind of application method of the infrared nondestructive failure detector for Modified Bitumen Pavement |
| CN110343395A (en) * | 2019-07-16 | 2019-10-18 | 长沙理工大学 | A kind of emulsified asphalt for realizing that cured strength is improved using microwave |
| CN110655349A (en) * | 2019-09-04 | 2020-01-07 | 合肥工业大学 | Asphalt pavement pit repairing capsule and preparation and construction method thereof |
| CN111360056A (en) * | 2020-02-25 | 2020-07-03 | 华北电力大学（保定） | Soil microwave remediation device and remediation method |
| CN114517075A (en) * | 2022-01-11 | 2022-05-20 | 中化学交通建设集团第二工程有限公司 | Preparation method and application of microwave response type asphalt-based waterproof binder |
| WO2022130079A1 (en) | 2020-12-15 | 2022-06-23 | FUTTEC a.s. | Method of repairing bitumen surfaces and device for carrying out this method |
-
2008
- 2008-03-06 CN CNA2008100600984A patent/CN101235208A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724280B (en) * | 2009-12-07 | 2012-01-04 | 长安大学 | Method for preparing road asphalt suitable for microwave heating |
| CN102732155A (en) * | 2012-07-20 | 2012-10-17 | 项晓睿 | Macromolecule waterproof coating capable of being subjected to microwave heating and preparation method thereof |
| CN102732155B (en) * | 2012-07-20 | 2013-11-27 | 浙江鲁班建筑防水有限公司 | Macromolecule waterproof coating capable of being subjected to microwave heating and preparation method thereof |
| CN103396672A (en) * | 2013-08-19 | 2013-11-20 | 长安大学 | Heat-conducting asphalt composite material and preparation method thereof |
| CN103396672B (en) * | 2013-08-19 | 2015-10-21 | 长安大学 | A kind of thermal conductive asphalt matrix material and preparation method thereof |
| CN104402314A (en) * | 2014-10-27 | 2015-03-11 | 长安大学 | Bituminous pavement mixture for using microwave to remove ice and snow and preparation method thereof |
| US20180170807A1 (en) * | 2015-06-03 | 2018-06-21 | Harald Heinz Peter Benoit | Asphalt composition and method of production and/or regeneration of at least one asphalt surface layer |
| DE102015108862A1 (en) | 2015-06-03 | 2016-12-08 | Harald Heinz Peter Benoit | An asphalt composition and a process for the production and / or renewal of at least one asphalt surfacing layer |
| DE102015108862B4 (en) * | 2015-06-03 | 2017-04-06 | Harald Heinz Peter Benoit | An asphalt composition and a process for the production and / or renewal of at least one asphalt surfacing layer |
| WO2016193082A1 (en) | 2015-06-03 | 2016-12-08 | Harald Heinz Peter Benoit | Asphalt composition and method for producing and/or renovating at least one asphalt surface layer |
| US11084757B2 (en) * | 2015-06-03 | 2021-08-10 | Harald Heinz Peter Benoit | Asphalt composition and method of production and/or regeneration of at least one asphalt surface layer |
| CN105036614A (en) * | 2015-08-04 | 2015-11-11 | 同济大学 | Bituminous concrete capable of self-healing fast under microwave action, manufacturing method and repairing method thereof |
| CN108559296A (en) * | 2018-05-15 | 2018-09-21 | 苏州太星新材料科技有限公司 | A kind of Si（B）Fiber C high-viscosity high-elasticity asphalt modifying agent and its preparation and application |
| CN109627792B (en) * | 2018-11-30 | 2021-06-08 | 湖南鑫长胜材料科技有限公司 | Fog sealing layer material, preparation method and application |
| CN109627792A (en) * | 2018-11-30 | 2019-04-16 | 湖南鑫长胜材料科技有限公司 | A kind of mist sealing material, preparation method and application |
| CN110095503A (en) * | 2019-05-13 | 2019-08-06 | 合肥工业大学 | A kind of application method of the infrared nondestructive failure detector for Modified Bitumen Pavement |
| CN110343395A (en) * | 2019-07-16 | 2019-10-18 | 长沙理工大学 | A kind of emulsified asphalt for realizing that cured strength is improved using microwave |
| CN110655349A (en) * | 2019-09-04 | 2020-01-07 | 合肥工业大学 | Asphalt pavement pit repairing capsule and preparation and construction method thereof |
| CN111360056A (en) * | 2020-02-25 | 2020-07-03 | 华北电力大学（保定） | Soil microwave remediation device and remediation method |
| WO2022130079A1 (en) | 2020-12-15 | 2022-06-23 | FUTTEC a.s. | Method of repairing bitumen surfaces and device for carrying out this method |
| CN114517075A (en) * | 2022-01-11 | 2022-05-20 | 中化学交通建设集团第二工程有限公司 | Preparation method and application of microwave response type asphalt-based waterproof binder |
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Open date: 20080806 |