CN105585274A - Warm-mixing asphalt mixture anti-rutting modifier and preparation method thereof - Google Patents
Warm-mixing asphalt mixture anti-rutting modifier and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a preparation method of a warm-mixing asphalt mixture anti-rutting modifier which includes, by mass, 50-90% of sulfur, 8-43% of hard asphalt, and 2-7% of a specially-made warm-mixing agent. The preparation method includes the steps of: a) preparing the specially-made warm-mixing agent with FT, halogen and aromatic hydrocarbon oil as raw materials with addition of a catalyst; b) feeding the specially-made warm-mixing agent, the hard asphalt and the sulfur into a kneading machine, uniformly mixing the components at 70-110 DEG C and kneading the mixture into a dough-like shape, and meanwhile starting a vacuumizing system to collect generated gas and perform environmental protective treatment to the gas; and c) starting a bottom-discharge screw extruder and a cutting and granulating system to perform extrusion and granulation to prepare the warm-mixing asphalt mixture anti-rutting modifier. When being added to an asphalt mixture, the modifier can effectively reduce mixing temperature of the asphalt mixture and improve the anti-rutting property of the asphalt mixture, and also improves the low-temperature ductility of the asphalt mixture. The modifier has excellent compatibility with asphalt.
Description
Technical field
The present invention relates to a kind of warm mix type asphalt mixture anti-rutting modifier and its preparation method and application.
Background technology
Due to reasons such as the heavy loadings that day by day increases and transport of China's vehicle, bituminous paving generation rut, gather around the phenomenons such as bag and be on the rise, particularly outstanding in south China hot area. This phenomenon has become one of main failure mode of the current bituminous highway of China, has had a strong impact on bituminous paving traffic safety, service level and service life.
As far back as 1900, people just started to carry out modified pitch with sulphur, improved the anti-rut performance of asphaltic road-mix surface course, but because sulphur price is surging, and sulphur modified asphalt compound discharges H in process of production2The problem of the sulfurous gas such as S, has restricted the technical development of sulfur modified pitch. Phase early 1980s, Luo Kebang get company of the U.S. has researched and produced sulphur base modifier SEAM(sulphurextendedasphaltmodifier), it is cheap, easy to use, although reduced H2The generating capacity of the sulfurous gas such as S, but the thoroughly solution not yet of the emission problem of pernicious gas has restricted the application of this technical products. China is relatively late to the research application of SEAM bituminous paving, until just built SEAM Techniques of Experimental Road for Modified Asphalt in Tianjin in 2000, also build thereafter Experiment Road in Heilungkiang, and obtained good effect, but it is less to apply generally scale, research is inadequate system, comprehensive also.
Sulphur is applied in asphalt, is generally by its granulation, form graininess, store and use time more for convenience. CN1402985A by 13%～30% sulphur, 3.0%～13% dispersant, all the other are water, are mixed with into drusen, dispersant is wherein one or more in bones of the dead glue, natural gum, sodium metasilicate, lactoprotein. CN1639275A is to liquid sulphur heating and melting, in liquid sulfur, add 0.25%～5% carbon black and the pentyl acetate at least about 0.08%, be prepared into plasticizing sulphur, then in plasticizing sulphur, add at least 10% pitch and 10% mineral fine etc., carry out granulation through sieve plate. What CN1303359A introduced is by the olefin of 93%～98% sulphur and 2%～7%, in carbon dioxide, be heated to the highest 135 DEG C, fully after hybrid reaction, not to be cooled to room temperature higher than the speed of 16 DEG C/min, crystalline forming, alkene is wherein cyclic dimer and the cyclic trimer mixing with styrene. Above-mentioned patent is in the time producing drusen, and because needs are liquid sulphur heating and melting, operating temperature is higher, and sulphur can distil, and produces dense penetrating odor, is unfavorable for environment and health of human body.
CN101970348A is dissolved in sulphur-cake, slate sulphur, the sulphur etc. that contains impurity in solvent, and after removing foreign matter, the solution that makes to be dissolved with sulphur is cooling, makes sulphur crystallization wherein and through sieve tray granulating and forming, solvent evaporation is recycled. Solvent used has anhydrous ammonia, aqueous ammonia, liquid sulfur dioxide, carbon disulfide, dimethyl disulfide etc. This patent need to be used a large amount of solvents, and solvent used is all the harmful substance with penetrating odor.
CN200410037665.6 is by the carbon black of 50%～99.99% sulphur and 0%～49%, 0.01%～1% smog inhibitor, 0%～3% plasticizer mixing granulation, and smog inhibitor is wherein that stannonic acid zinc, plasticizer are n-butanol. CN1678704A fully mixes 60%～98% sulphur, 0.2%～15% carbon black, 1%～30% pitch (or cyclic saturated hydrocarbon, ring-type unsaturated hydrocarbons, polycyclic saturated hydrocarbon, encircle unsaturated hydrocarbons, tar etc.), 1%～33% mineral fine (as flying dust, silica material, ceramic clay etc.) more, the sulphur of the forms such as cooling rear formation ingot, tabular, block, graininess, sheet, can be used in asphalt. Above-mentioned two patents need to be liquid sulphur heating and melting, and operating temperature is higher, can produce dense penetrating odor, is unfavorable for environment and health of human body. Can only improve the high-temperature behavior of asphalt, low temperature cracking resistance energy and the anti-water damage property of compound need to improve, and the drusen forming is also more crisp, easily broken when transport and handling, due to the friction between particle, also can produce more dust, not only to environment, and easily make staff suck, health risk.
The patents such as CN201210439792.3, CN201210439807.6, CN201210439808.0, CN201210439809.5, CN201210440324.8 are taking sulphur, pitch, shoddy, EVA, PE, butadiene-styrene rubber, hydroxide etc. as raw material, utilize single screw rod or double screw extruder, prepare asphalt mixture anti-rutting additive, can improve the anti-rut performance of asphalt. But in formula, do not add warm-mixing agent, when product application, mix temperature is higher, can produce more pernicious gas, and application is restricted; In addition, do not use kneader in preparation process, but adopt single screw rod or double screw extruder, the pernicious gas producing cannot be collected and process, and can affect the healthy of operating personnel.
Along with the attention of people to environmental protection, oil product is cleaned and requires to improve constantly, in natural gas purification and petroleum refining process, produce a large amount of sulphur byproducts. How effectively to utilize these by-product sulphur, prepare asphalt mixture anti-rutting additive, can solve on the one hand the outlet of a large amount of by-product sulphur, can improve again asphalt mixture anti-rutting performance simultaneously, and reduce asphalt mixture mixing and forming temperature, thereby reduce pernicious gas generating capacity, alleviate pitch thermal cracking, be conducive to environmental protection, become current hot issue.
Summary of the invention
The rut phenomenon and the deficiencies in the prior art that occur for China's bituminous paving, the invention provides a kind of warm mix type asphalt mixture anti-rutting modifier and preparation method thereof. This modifier can effectively improve the anti-rut performance of bituminous paving, and takes into account cryogenic property, reduces compound mix and forming temperature. Preparation process feeds intake conveniently, pernicious gas can be collected and processed, and is conducive to environmental protection.
Warm mix type asphalt mixture anti-rutting modifier of the present invention, in modifier mass percent, comprising:
Sulphur 50%～90%,
Pitch 8%～43%,
Special warm-mixing agent 2%～7%,
Special warm-mixing agent used is a kind of warm-mixing agent of taking particular form to develop voluntarily, and the raw materials of this warm-mixing agent comprises FT, halogen, aromatic naphtha, and adds catalyst. Wherein said FT carries out a kind of macromolecule alkane that synthetic reaction obtains again after coal gasification, can be also to carry out a kind of macromolecule alkane that synthetic reaction obtains taking natural gas as raw material. Carbon number is 40～130, is preferably 60～130; Molecular weight is 562～1822, is preferably 842～1822.
The consumption of described halogen is 0.3～0.5 times of FT molal quantity. The weight ratio of FT and aromatic naphtha is (1～7): the arbitrary proportion of (7～1).
Described halogen is the one in fluorine, chlorine, bromine, is preferably chlorine or bromine.
Described aromatic naphtha is a kind of component that is rich in aromatic hydrocarbons, can be to subtract four lines to extract oil, furfural extract oil, phenol treating extraction oil, catalytic cracked oil pulp etc. out; Arene content is wherein 57%～78%, is preferably 60%～75%.
Described catalyst is anhydrous AlCl3、FeCl3、SbCl3、ZnCl2、TiCl4、SnCl4、BF3In one or more, be preferably AlCl3Or FeCl3. Catalyst amount is 0.3%～0.9%(weight ratio of arene content in aromatic naphtha).
Sulphur used is technical grade sulphur, can be Powdered, graininess, sheet or bulk, is preferably Powdered. Can be commercially available sulphur, can be also the accessory substance sulphur producing in natural gas processing or petroleum refining process.
Pitch used is one or more in asphalt, bitumen, coal tar pitch, and needle penetration is 3～30dmm, 70 DEG C～110 DEG C of softening points.
The preparation method of described warm-mixing agent, comprising: by after FT heating and melting, introduce halogen, obtain intermediate; In aromatic naphtha, add catalyst and stir, then above-mentioned intermediate being mixed with aromatic naphtha, stirring reaction, obtains the present invention's special warm-mixing agent used.
Described warm-mixing agent preparation method more specifically comprises: FT heating and melting is placed in closed container, is heated to 250 DEG C～400 DEG C, keep introducing halogen at this temperature, stir 60～180min, obtain intermediate; Aromatic naphtha is contained in another closed container and is heated to 70 DEG C～150 DEG C, add wherein catalyst and stir, mixing time is no less than 30min. Then under stirring, above-mentioned intermediate is injected in aromatic naphtha with vaporific, after all spraying into, 70 DEG C～150 DEG C of constant temperature, stirring reaction 90～180min, obtains the present invention's special warm-mixing agent used. Wherein said FT is a kind of macromolecule alkane, and carbon number is 40～130, is preferably 60～130; Molecular weight is 562～1822, is preferably 842～1822. Both can be after coal gasification, to carry out a kind of macromolecule alkane that synthetic reaction obtains, can be also to carry out a kind of macromolecule alkane that synthetic reaction obtains taking natural gas as raw material again.
The present invention also provides a kind of preparation method of warm mix type asphalt mixture anti-rutting modifier, comprising: in advance with FT, halogen, aromatic naphtha raw material, and add catalyst. FT heating and melting is placed in closed container, is heated to 250 DEG C～400 DEG C, keep introducing halogen at this temperature, stir 60～180min, obtain intermediate; Aromatic naphtha is contained in another closed container and is heated to 70 DEG C～150 DEG C, add wherein catalyst and stir. Then under stirring, above-mentioned intermediate is injected in aromatic naphtha with vaporific, after all spraying into, 70 DEG C～150 DEG C of constant temperature, stirring reaction 90～180min, obtains the present invention's special warm-mixing agent used. Then this special warm-mixing agent, pitch, sulphur are together rendered in kneader in proportion, at 70 DEG C～110 DEG C temperature, merged evenly and be kneaded into dough shape, start pumped vacuum systems simultaneously, after the pernicious gas of generation is collected, carry out environmental protection treatment; Then start bottom discharge screw extruder and cutting granulating system, extrude, granulation, obtain warm mix type asphalt mixture anti-rutting modifier of the present invention.
In the inventive method, described kneader is bottom discharge screw rod extrusion type kneader, kneader speed of agitator 1300～1500rpm, and mixing time is 30～60min, and mediating temperature is 70 DEG C～110 DEG C, and extrusion temperature is 70 DEG C～110 DEG C.
In the inventive method, kneader adds pumped vacuum systems, can be the pernicious gas producing in production process as H2S、SO2After collecting, absorb and carry out environmental protection treatment by NaOH aqueous slkali, not only reduce air pollution, and the gas being mingled with in material can be extracted out, make product closely knit, homogeneous, be conducive to store, transport and application.
The present invention provides a kind of warm mix type anti-rutting asphalt compound simultaneously, comprises with the weight percent meter of compound:
Aforementioned warm mix type asphalt mixture anti-rutting modifier 1.0%～3.0%
Asphalt 4.0%～6.0%
Cement 1.0%～3.0%
Breeze 1.0%～3.0%
Gather materials 85.0%～93.0%.
The present invention's petroleum asphalt penetration used is 60～120dmm.
What the present invention was used gathers materials can be one or more during limestone, basalt, andesite, granite gather materials, and proportioning meets any one in close-graded AC-10, AC-13, AC-16 or AC-20.
The present invention's cement used is portland cement, strength grade is 42.5,42.5R, 52.5,52.5R, 62.5 or 62.5R in any one.
The present invention's breeze used is to be ground and formed by ore, and particle diameter requires the component proportion that is less than 0.075mm to be greater than 70%.
The preparation method of warm mix type anti-rutting asphalt compound of the present invention, comprise: in advance by stirred tank, gather materials, asphalt be heated to 125～145 DEG C for subsequent use, until stirred tank, gather materials, after the temperature constant of asphalt, asphalt, gather materials, cement, breeze and warm mix type asphalt mixture anti-rutting modified grain add in stirred tank simultaneously, stir, obtain warm mix type anti-rutting asphalt compound.
Wherein, warm mix type asphalt mixture anti-rutting modified grain is 1:9～3:7 with oil pitch quality ratio.
Compared with prior art, tool has the following advantages warm mix type asphalt mixture anti-rutting modifier of the present invention:
1, modifier of the present invention has added sulphur, pitch and special warm-mixing agent simultaneously, in the time of mixing compound, under the synergy of each component, can obviously improve asphalt pavement rut resisting performance, has also taken into account low temperature ductility energy simultaneously.
2, modifier of the present invention, in compound mixing process, due to adding of pitch, has been promoted the compatibility of modified grain and pitch, is conducive to dispersed in modifier compound and wraps in surface of aggregate.
3, in modifier of the present invention, owing to having added special warm-mixing agent, can obviously reduce compound mix and forming temperature, reduce pernicious gas generating capacity, be conducive to environmental protection.
4, the present invention has adopted the kneader that installs pumped vacuum systems additional, compared with adopting the way of extruder in the past, these two steps of the precomminution of pitch and the premixed of material are saved, be conducive to the input of material, production process is simplified, improve production efficiency, pumped vacuum systems simultaneously, pernicious gas can be extracted out and collected and environmental protection treatment, not only reduce air pollution, and by the gas being mingled with in material is extracted out, make the product after moulding homogeneous, be conducive to store, transport and application.
5, in modifier preparation process of the present invention, temperature is 70 DEG C～110 DEG C, lower than conventional art temperature, can obviously reduce the generating capacity of pernicious gas, alleviates operating personnel are endangered.
Detailed description of the invention
Describe technical scheme of the present invention in detail below in conjunction with embodiment, but the invention is not restricted to following examples. In order to contrast, in the time preparing asphalt, grating is AC-13, and the bitumen aggregate ratio that bitumen aggregate ratio is in 5.4%, embodiment refers to (pitch+modifier): the mass ratio gathering materials.
Embodiment 1
The FT that carbon number that synthetic reaction obtains is 40 by carrying out after coal gasification again, molecular weight is 562, weight is 1000g is placed in closed container, is heated to 250 DEG C, keeps at this temperature, introducing the chlorine of 0.89 mole, stirs 60min, obtains intermediate; Take arene content and be 70% four lines that subtract and extract oily 7000g out, be contained in another closed container and be heated to 70 DEG C, add wherein the anhydrous AlCl of 44.1g3, stir 45min. Then under stirring, above-mentioned intermediate is subtracted in four lines extraction oil with vaporific being injected to, after all spraying into, 70 DEG C of constant temperature, stirring reaction 90min, obtains the present invention's special warm-mixing agent used. Each component proportion is in table 1.
Taking above-mentioned special warm-mixing agent 7kg, needle penetration is that 3dmm softening point is the bitumen 43kg of 110 DEG C, the industrial sulphur 50kg that graininess natural gas processing process produces, together render in kneader, at 110 DEG C of temperature, merge evenly and be kneaded into dough shape, start pumped vacuum systems simultaneously, after the pernicious gas of generation is collected, absorb and carry out environmental protection treatment by NaOH aqueous slkali. Then start bottom discharge screw extruder and cutting granulating system, extrude, granulation, form the particle of diameter 3mm, length 2mm～3mm, obtain warm mix type asphalt mixture anti-rutting modifier of the present invention. Kneader speed of agitator 1300rpm, mixing time 30min, mediating temperature is 110 DEG C, extrusion temperature is 110 DEG C. Raw material proportioning and tracking-resisting modifier character are in table 2.
In advance special asphalt stirred tank is heated to 125 DEG C of constant temperature; It is that AC-13 gathers materials that Fushun limestone aggregates is mixed with to grating, and gross weight is 100kg, be heated to 125 DEG C for subsequent use; Take No. 70 pitches (East Sea board) 4.86kg, be heated to 125 DEG C for subsequent use; According to modifier: the ratio that the mass ratio of pitch is 1:9, the modified grain that takes 0.54kg is for subsequent use. Until stirred tank, gather materials, asphalt temperature constant after, above-mentioned material is added in stirred tank together, stir 2 minutes, emit compound. Then be prepared into various bitumen mixture specimens, carry out performance of asphalt mixture evaluation experimental, the results are shown in Table 3.
Embodiment 2
Be placed in closed container carrying out again the FT that synthetic reaction obtains after the coal gasification that carbon number is 90, molecular weight is 1262, weight is 3500g, be heated to 370 DEG C, keep at this temperature, introducing the chlorine of 1.16 moles, stir 100min, obtain intermediate; Take arene content and be 63% catalytic cracked oil pulp 1000g, be contained in another closed container and be heated to 90 DEG C, add wherein the anhydrous TiCl of 4.7g4, stir 35min. Then under stirring, above-mentioned intermediate is injected in catalytic cracked oil pulp with vaporific, after all spraying into, 90 DEG C of constant temperature, stirring reaction 160min, obtains the present invention's special warm-mixing agent used. Each component proportion is in table 1.
Asphalt 8kg, the industrial sulphur 90kg that Powdered petroleum refining process produces that to take above-mentioned special warm-mixing agent 2kg, needle penetration be 70 DEG C for 30dmm softening point, together render in kneader, at 70 DEG C of temperature, merge evenly and be kneaded into dough shape, start pumped vacuum systems simultaneously, after the pernicious gas of generation is collected, absorb and carry out environmental protection treatment by NaOH aqueous slkali. Then start bottom discharge screw extruder and cutting granulating system, extrude, granulation, form the particle of diameter 3mm, length 2mm～3mm, obtain warm mix type asphalt mixture anti-rutting modifier of the present invention. Kneader speed of agitator 1500rpm, mixing time 60min, mediating temperature is 70 DEG C, extrusion temperature is 70 DEG C. Raw material proportioning and tracking-resisting modifier character are in table 2.
Special asphalt stirred tank is heated to 145 DEG C of constant temperature; It is that AC-13 gathers materials that Fushun limestone aggregates is mixed with to grating, and gross weight is 100kg, be heated to 145 DEG C for subsequent use; Take No. 70 pitches (East Sea board) 3.78kg, be heated to 145 DEG C for subsequent use; According to modifier: the ratio that the mass ratio of pitch is 3:7, the modified grain that takes 1.62kg is for subsequent use. Until stirred tank, gather materials, asphalt temperature constant after, above-mentioned material is added in stirred tank together, stir 2 minutes, emit compound. Then be prepared into various bitumen mixture specimens, carry out performance of asphalt mixture evaluation experimental. To asphalt modified effect in table 3.
Embodiment 3
By carbon number be 130, molecular weight is 1822, weight is 7000g carries out the FT heating and melting that synthetic reaction obtains taking natural gas as raw material and be placed in closed container, be heated to 400 DEG C, keep introducing at this temperature the bromine of 1.15 moles, stir 180min, obtain intermediate; Take arene content and be 57% furfural extract oil 1000g, be contained in another closed container and be heated to 150 DEG C, add wherein the anhydrous FeCl of 1.7g3, stir 30min. Then under stirring, above-mentioned intermediate is injected in furfural extract oil with vaporific, after all spraying into, 150 DEG C of constant temperature, stirring reaction 180min, obtains the present invention's special warm-mixing agent used. Each component proportion is in table 1.
Coal tar pitch 26kg, the industrial sulphur 70kg that sheet petroleum refining process produces that to take above-mentioned special warm-mixing agent 4kg, needle penetration be 90 DEG C for 16dmm softening point, together render in kneader, at 90 DEG C of temperature, merge evenly and be kneaded into dough shape, start pumped vacuum systems simultaneously, after the pernicious gas of generation is collected, absorb and carry out environmental protection treatment by NaOH aqueous slkali. Then start bottom discharge screw extruder and cutting granulating system, extrude, granulation, form the particle of diameter 3mm, length 2mm～3mm, obtain warm mix type asphalt mixture anti-rutting modifier of the present invention. Kneader speed of agitator 1400rpm, mixing time 45min, mediating temperature is 90 DEG C, extrusion temperature is 90 DEG C. Raw material proportioning and tracking-resisting modifier character are in table 2.
Special asphalt stirred tank is heated to 135 DEG C of constant temperature; It is that AC-13 gathers materials that Fushun limestone aggregates is mixed with to grating, and gross weight is 100kg, be heated to 135 DEG C for subsequent use; Take No. 70 pitches (East Sea board) 4.32kg, be heated to 135 DEG C for subsequent use; According to modifier: the ratio that the mass ratio of pitch is 2:8, the modified grain that takes 1.08kg is for subsequent use. Until stirred tank, gather materials, asphalt temperature constant after, above-mentioned material is added in stirred tank together, stir 2 minutes, emit compound. Then be prepared into various bitumen mixture specimens, carry out performance of asphalt mixture evaluation experimental. To asphalt modified effect in table 3.
Comparative example 1
In advance special asphalt stirred tank is heated to 170 DEG C of constant temperature for subsequent use; It is that AC-13 gathers materials that Fushun limestone aggregates is mixed with to grating, and gross weight is 100kg, is heated to 170 DEG C of constant temperature for subsequent use; According to pitch: the ratio that the mass ratio gathering materials is 5.4% takes No. 70 pitches (East Sea board) 5.4kg, is heated to 170 DEG C of constant temperature for subsequent use; Until stirred tank, gather materials, asphalt temperature constant after, above-mentioned pitch is added in stirred tank together with gathering materials, stir 2 minutes, emit compound. Then be prepared into various bitumen mixture specimens, carry out performance of asphalt mixture evaluation experimental. Asphalt Mixture is in table 3.
Comparative example 2
In advance special asphalt stirred tank is heated to 160 DEG C of constant temperature for subsequent use; It is that AC-13 gathers materials that Fushun limestone aggregates is mixed with to grating, and gross weight is 100kg, is heated to 160 DEG C of constant temperature for subsequent use; Take No. 70 pitches (East Sea board) 4.32kg, be heated to 160 DEG C of constant temperature for subsequent use; According to sulphur: the ratio that the mass ratio of pitch is 1:4, the Cosan that takes 1.08kg is for subsequent use. Be that bitumen aggregate ratio is 5.4%, said bitumen aggregate ratio refers to (pitch+sulphur) here: the ratio gathering materials. Until stirred tank, gather materials, asphalt temperature constant after, above-mentioned material is added in stirred tank together, stir 2 minutes, emit compound. Then be prepared into various bitumen mixture specimens, carry out performance of asphalt mixture evaluation experimental. Asphalt Mixture is in table 3.
The each component proportion of special warm-mixing agent that table 1 the present invention is used
Table 2 warm mix type asphalt mixture anti-rutting modifier proportioning and character
Table 3 Asphalt Mixture
From table 3, when adding in asphalt after warm mix type asphalt mixture anti-rutting modifier of the present invention, mix temperature obviously reduces, Properties of Asphalt Mixture is had clear improvement, especially rut dynamic stability increase rate is very large, can reach the technical requirement of modified pitch, take into account cryogenic property, other index also meets demand of technical standard.
Claims (13)
1. a warm mix type asphalt mixture anti-rutting modifier, is characterized in that: in modifier mass percent, comprising:
Sulphur 50%～90%,
Pitch 8%～43%,
Special warm-mixing agent 2%～7%,
Described special warm-mixing agent raw materials comprises FT, halogen, aromatic naphtha, and be added with catalyst, wherein said FT carries out a kind of macromolecule alkane that synthetic reaction obtains again after coal gasification, can be also to carry out a kind of macromolecule alkane that synthetic reaction obtains taking natural gas as raw material.
2. tracking-resisting modifier according to claim 1, is characterized in that: described FT is that carbon number is 40～130, is preferably 60～130; Molecular weight is 562～1822, is preferably 842～1822 macromolecule alkane.
3. tracking-resisting modifier according to claim 1 and 2, is characterized in that: the consumption of described halogen is 0.3～0.5 times of FT molal quantity.
4. tracking-resisting modifier according to claim 1 and 2, is characterized in that: the weight ratio of FT and aromatic naphtha is (1～7): the arbitrary proportion of (7～1).
5. tracking-resisting modifier according to claim 1 and 2, is characterized in that: described aromatic naphtha is a kind of component that is rich in aromatic hydrocarbons, and arene content is wherein 57%～78%, is preferably 60%～75%.
6. tracking-resisting modifier according to claim 1 and 2, is characterized in that: described catalyst is anhydrous AlCl3、FeCl3、SbCl3、ZnCl2、TiCl4、SnCl4、BF3In one or more, be preferably AlCl3Or FeCl3。
7. tracking-resisting modifier according to claim 1 and 2, is characterized in that: described catalyst amount by weight, is 0.3%～0.9% of arene content in aromatic naphtha.
8. tracking-resisting modifier according to claim 1 and 2, is characterized in that: the preparation method of described warm-mixing agent, comprising: by after FT heating and melting, introduce halogen, obtain intermediate; In aromatic naphtha, add catalyst and stir, then above-mentioned intermediate being mixed with aromatic naphtha, stirring reaction, obtains the present invention's special warm-mixing agent used.
9. tracking-resisting modifier according to claim 1 and 2, it is characterized in that: described warm-mixing agent preparation method comprises: FT heating and melting is placed in closed container, is heated to 250 DEG C～400 DEG C, keep introducing halogen at this temperature, stir 60～180min, obtain intermediate; Aromatic naphtha is contained in another closed container and is heated to 70 DEG C～150 DEG C, add wherein catalyst and stir, mixing time is no less than 30min; Then under stirring, above-mentioned intermediate is injected in aromatic naphtha with vaporific, after all spraying into, 70 DEG C～150 DEG C of constant temperature, stirring reaction 90～180min, obtains the present invention's special warm-mixing agent used; Wherein said FT is a kind of macromolecule alkane, and carbon number is 40～130, is preferably 60～130; Molecular weight is 562～1822, is preferably 842～1822.
10. a preparation method for warm mix type asphalt mixture anti-rutting modifier, is characterized in that: preparation process comprises the steps:
Step 1: in advance taking FT, halogen, aromatic naphtha as raw material, and add catalyst, FT heating and melting is placed in closed container, be heated to 250 DEG C～400 DEG C, keep introducing halogen at this temperature, stir 60～180min, obtain intermediate;
Step 2: aromatic naphtha is contained in another closed container and is heated to 70 DEG C～150 DEG C, add wherein catalyst and stir, then under stirring, above-mentioned intermediate is injected in aromatic naphtha with vaporific, after all spraying into, 70 DEG C～150 DEG C of constant temperature, stirring reaction 90～180min, obtains the present invention's special warm-mixing agent used;
Step 3: this special warm-mixing agent, pitch, sulphur are together rendered in kneader in proportion, merged at 70 DEG C～110 DEG C temperature evenly and be kneaded into dough shape, start pumped vacuum systems simultaneously, carry out environmental protection treatment after the pernicious gas of generation is collected;
Step 4: start bottom discharge screw extruder and cutting granulating system, extrude, granulation, obtain warm mix type asphalt mixture anti-rutting modifier of the present invention.
11. preparation methods of tracking-resisting modifier according to claim 10, it is characterized in that: described kneader is bottom discharge screw rod extrusion type kneader, kneader speed of agitator 1300～1500rpm, mixing time is 30～60min, mediating temperature is 70 DEG C～110 DEG C, and extrusion temperature is 70 DEG C～110 DEG C.
12. 1 kinds of warm mix type anti-rutting asphalt compounds, is characterized in that: the weight percent meter with compound comprises:
Tracking-resisting modifier 1.0%～3.0% described in claim 1
Asphalt 4.0%～6.0%
Cement 1.0%～3.0%
Breeze 1.0%～3.0%
Gather materials 85.0%～93.0%.
13. according to warm mix type anti-rutting asphalt compound described in claim 12, it is characterized in that: described warm mix type asphalt mixture anti-rutting modifier is 1:9～3:7 with oil pitch quality ratio.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563688.4A CN105585274B (en) | 2014-10-22 | 2014-10-22 | Warm mix type asphalt mixture anti-rutting modifying agent and preparation method thereof |
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| CN201410563688.4A CN105585274B (en) | 2014-10-22 | 2014-10-22 | Warm mix type asphalt mixture anti-rutting modifying agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105585274A true CN105585274A (en) | 2016-05-18 |
| CN105585274B CN105585274B (en) | 2017-07-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609790A (en) * | 2015-01-16 | 2015-05-13 | 辽宁兆利高新路面材料有限公司 | Warm mixing type anti-rutting asphalt mixture and preparation method thereof |
| CN111574112A (en) * | 2020-05-26 | 2020-08-25 | 马瓯丽 | High-temperature-resistant and anti-rutting asphalt mixture and preparation method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654522A (en) * | 2005-01-21 | 2005-08-17 | 云南大学 | Asphalt modifier for bituminous concrete pavement and method for preparing same |
| CN101704644A (en) * | 2009-11-06 | 2010-05-12 | 同济大学 | Anti-rut agent for asphalt pavements and preparation method thereof |
| CN102320765A (en) * | 2011-07-27 | 2012-01-18 | 云南省公路科学技术研究院 | Warm-mix regenerated asphalt mixture |
| CN102351468A (en) * | 2011-07-11 | 2012-02-15 | 江苏东交工程设计顾问有限公司 | Regenerative asphalt mixture and preparation method thereof |
| CN102604402A (en) * | 2012-03-31 | 2012-07-25 | 英达热再生有限公司 | Asphalt recycling agent for hot recycling of asphalt on asphalt road surface |
| CN102795801A (en) * | 2012-08-17 | 2012-11-28 | 辽宁石油化工大学 | Asphalt warm mix additive for high grade road and preparation method thereof |
| CN102838317A (en) * | 2012-09-17 | 2012-12-26 | 山东建筑大学 | Heavy asphalt warm mixing agent and preparation method thereof |
| CN102910854A (en) * | 2012-09-26 | 2013-02-06 | 天津市市政工程研究院 | Anti-rut agent and preparation method therefor |
| CN102976649A (en) * | 2011-09-06 | 2013-03-20 | 北京化工大学 | Warm-mixing agent used for waste-rubber-powder-modified asphalt, and preparation method thereof |
| CN103804927A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt mixture modifier and preparation method thereof |
| CN103804938A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt pavement anti-rutting modifier, preparation method and application thereof |
| CN103803841A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Anti-rut modifier and preparation method thereof |
| CN103803837A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving asphalt pavement performance and preparation method thereof |
| CN103803836A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving performance of asphalt pavement and preparation method thereof |
| CN103922646A (en) * | 2014-04-09 | 2014-07-16 | 东北林业大学 | Warm-mixing asphalt mixture |
-
2014
- 2014-10-22 CN CN201410563688.4A patent/CN105585274B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654522A (en) * | 2005-01-21 | 2005-08-17 | 云南大学 | Asphalt modifier for bituminous concrete pavement and method for preparing same |
| CN101704644A (en) * | 2009-11-06 | 2010-05-12 | 同济大学 | Anti-rut agent for asphalt pavements and preparation method thereof |
| CN102351468A (en) * | 2011-07-11 | 2012-02-15 | 江苏东交工程设计顾问有限公司 | Regenerative asphalt mixture and preparation method thereof |
| CN102320765A (en) * | 2011-07-27 | 2012-01-18 | 云南省公路科学技术研究院 | Warm-mix regenerated asphalt mixture |
| CN102976649A (en) * | 2011-09-06 | 2013-03-20 | 北京化工大学 | Warm-mixing agent used for waste-rubber-powder-modified asphalt, and preparation method thereof |
| CN102604402A (en) * | 2012-03-31 | 2012-07-25 | 英达热再生有限公司 | Asphalt recycling agent for hot recycling of asphalt on asphalt road surface |
| CN102795801A (en) * | 2012-08-17 | 2012-11-28 | 辽宁石油化工大学 | Asphalt warm mix additive for high grade road and preparation method thereof |
| CN102838317A (en) * | 2012-09-17 | 2012-12-26 | 山东建筑大学 | Heavy asphalt warm mixing agent and preparation method thereof |
| CN102910854A (en) * | 2012-09-26 | 2013-02-06 | 天津市市政工程研究院 | Anti-rut agent and preparation method therefor |
| CN103804927A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt mixture modifier and preparation method thereof |
| CN103804938A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Asphalt pavement anti-rutting modifier, preparation method and application thereof |
| CN103803841A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Anti-rut modifier and preparation method thereof |
| CN103803837A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving asphalt pavement performance and preparation method thereof |
| CN103803836A (en) * | 2012-11-07 | 2014-05-21 | 中国石油化工股份有限公司 | Additive for improving performance of asphalt pavement and preparation method thereof |
| CN103922646A (en) * | 2014-04-09 | 2014-07-16 | 东北林业大学 | Warm-mixing asphalt mixture |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609790A (en) * | 2015-01-16 | 2015-05-13 | 辽宁兆利高新路面材料有限公司 | Warm mixing type anti-rutting asphalt mixture and preparation method thereof |
| CN111574112A (en) * | 2020-05-26 | 2020-08-25 | 马瓯丽 | High-temperature-resistant and anti-rutting asphalt mixture and preparation method thereof |
| CN111574112B (en) * | 2020-05-26 | 2021-05-11 | 山东汇通建设集团有限公司 | High-temperature-resistant and anti-rutting asphalt mixture and preparation method thereof |
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| CN105585274B (en) | 2017-07-14 |
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