CN101100553A - Bitumen compositions and preparation method thereof - Google Patents
Bitumen compositions and preparation method thereof Download PDFInfo
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- CN101100553A CN101100553A CNA2007101439389A CN200710143938A CN101100553A CN 101100553 A CN101100553 A CN 101100553A CN A2007101439389 A CNA2007101439389 A CN A2007101439389A CN 200710143938 A CN200710143938 A CN 200710143938A CN 101100553 A CN101100553 A CN 101100553A
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- bituminous composition
- asphalt
- soap lye
- composition according
- pitch
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- 239000010426 asphalt Substances 0.000 title claims abstract description 63
- 239000000203 mixture Substances 0.000 title claims description 28
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000000344 soap Substances 0.000 claims abstract description 26
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003208 petroleum Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 26
- 239000011295 pitch Substances 0.000 claims description 21
- -1 peroxy compound Chemical class 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000011301 petroleum pitch Substances 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 10
- 238000004945 emulsification Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004113 Sepiolite Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 239000003205 fragrance Substances 0.000 claims description 4
- 235000013336 milk Nutrition 0.000 claims description 4
- 239000008267 milk Substances 0.000 claims description 4
- 210000004080 milk Anatomy 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910052624 sepiolite Inorganic materials 0.000 claims description 4
- 235000019355 sepiolite Nutrition 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 150000008116 organic polysulfides Chemical class 0.000 claims description 3
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 claims description 2
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- 239000001856 Ethyl cellulose Substances 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 2
- 238000001856 aerosol method Methods 0.000 claims description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 238000004523 catalytic cracking Methods 0.000 claims description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 229920001249 ethyl cellulose Polymers 0.000 claims description 2
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 3
- 239000002131 composite material Substances 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 10
- 229920000126 latex Polymers 0.000 description 6
- 239000004816 latex Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- FSWVCQRXJCPIEA-UHFFFAOYSA-M [Cl-].OCC[NH3+].C(CCCCCCCCCCCCCCC)[N+](CC1=CC=CC=C1)(C)C.[Cl-] Chemical compound [Cl-].OCC[NH3+].C(CCCCCCCCCCCCCCC)[N+](CC1=CC=CC=C1)(C)C.[Cl-] FSWVCQRXJCPIEA-UHFFFAOYSA-M 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
An asphalt composite and its production are disclosed. The composite consists of modified asphalt 63-70 wt% and soap liquid 30-37 wt%; the modified asphalt contains petroleum asphalt 84-92 wt%, polymer 3.5-5 wt%, stabilizer 0.05-0.2 wt%, compatible agent 4-10 wt% and filler 0-3 wt%; the soap liquid contains 0.8-1.5 wt% emulsifier, 0.1-0.2 wt% emulsion stabilizer, thickening agent 0.03-0.06 wt% and water 100%. The pH value is adjusted to 1.5-2.5 by concentrated sulfuric acid. The process is carried out by: preparing modified asphalt, preparing soap liquid, and emulsifying. The evaporating residue content is 63-70 wt%, demulsifying rate is less than 40% and evaporating residue softening point is equal to or greater than 60 deg. C.
Description
Technical field
The present invention relates to a kind of bituminous composition and preparation method thereof, relate in particular to a kind of emulsified modified asphalt and preparation method thereof, belong to asphalt modification and emulsification processing technique field, composition of the present invention is applicable to synchronous surface dressing wearing course binding material or constructs bituminous concrete cover bonding layer material synchronously.
Background technology
Emulsified bitumen is used very extensive as the matrix material in the pavement engineering, have construction convenient, cut down the consumption of energy, reduce many advantages such as pollutions, prolongation construction time.But shortcomings such as the common emulsified asphalt existence is strong to temperature sensitivity, bad adhesion, snappiness difference can not satisfy the requirement of High Grade Bitumen Pavement to matrix material.
Prior art has been produced multiple modified emulsifying asphalt, the properties-correcting agent that adopts mostly is polymer latexs such as styrene-butadiene latex SBR, polychloroprene latex CBR or ethylene vinyl acetate copolymer EVA latex, the mode of production that adopts mostly is polymer latex is directly joined in the common emulsified asphalt, or polymer latex added in the soap lye makes modified emulsifying asphalt with matrix pitch by emulsifying device again.The modified emulsifying asphalt that prior art makes has comprehensively improved every performance of common emulsified asphalt to a certain extent, can satisfy the requirement to the modified emulsifying asphalt material property of bituminous pavement little table place or bituminous pavement interlayer tack coat.Yet, for being applied in the synchronous surface dressing wearing course on the high grade pavement or the such technology of bituminous concrete cover of constructing synchronously, used modified emulsifying asphalt is except should having more excellent high-temperature stability, low temperature flexibility and cohesiveness, also require material to have higher evaporation residue content and viscosity, to guarantee that material can not trickle under the material sprinkling amount situation about muching bigger than common adhesion coating; And de-emulsification speed faster, form intensity fast to guarantee material, play bonding and waterproof action, open to traffic reduces because the traffic long loss that causes off-period as early as possible.The above-mentioned performance modified emulsifying asphalt institute that produces of prior art just is inaccessiable.
It may occur to persons skilled in the art that and select earlier suitable polymer modifiers matrix pitch to be carried out modification, produce modified emulsifying asphalt then as segmented copolymer thermoplastic elastomer commonly used.Even yet the performance of modified bitumen excellence of producing, but owing to modifying asphalt viscosity, degree of crosslinking is too high and properties-correcting agent and bitumen compatibility be bad etc., and reason is difficult to modified emulsifying asphalt product emulsified and that obtained performance is stable.Therefore must select the properties-correcting agent in the asphalt modification process, mix and join and the consumption restriction, select suitable matrix pitch and other additives simultaneously.
The composition of petroleum pitch is very complicated, can think that usually it comprises bituminous matter, colloid, fragrance branch, four kinds of components of saturated branch, and wherein bituminous matter and gelationus molecular weight are bigger, and fragrance divides relative less with saturated fractionated molecule amount.In the asphalt modification process, the ratio of these several components is extremely important for the stable dispersion of polymkeric substance in pitch in the pitch, particularly fragrant branch is swollen polymer effectively, reduce the interfacial tension between polymer beads and the pitch, so when increasing polymer loading, the content of the fragrant low molecular weight compositions that grades in the increase system simultaneously prolongs swelling time, and add an amount of stablizer with cross-linked polymer, just can guarantee polymkeric substance homodisperse in pitch.
The performance of the product confrontation the finished product of matrix pitch is influential, particularly when product performance index is had requirements at the higher level, must be limited the matrix pitch performance index, because it is complicated to measure and estimate the concrete component of bituminous, so adopting the qualification matrix pitch to refer generally to the target mode more gears to actual circumstances, density and aging front and back quality change as matrix pitch can reflect its aging resistance, national regulation is stipulated the upper limit of 60 ℃ of kinetic viscosities of matrix pitch in addition, and in fact this parameter is bigger for the influence of production high target modifying asphalt.
In the preparation process of polymer modified asphalt, the weight molecule amount of polymkeric substance is too small, to the asphalt modification DeGrain, molecular weight is excessive, be difficult for stable and uniform dispersion in pitch again, also can influence emulsion process, so polymericular weight should be controlled in the suitable scope.In addition, simple linear polymer relative star-type polymer in pitch is easy to swelling dispersion in pitch, but the effect of improving of asphalt performance is not so good as the latter, and the two needs to control suitable cooperation ratio to reach best effect in the preparation of modifying asphalt.Equally, the rigid chain segment of segmented copolymer and soft segment play not same-action in modifying asphalt, and suitable ratio can make the polymer network structure in the finished product have better modified effect.
For the emulsion process of guaranteeing modifying asphalt can smooth implementation, must the viscosity of modifying asphalt be limited, for simplicity can selectional restriction be used to produce the penetration degree of the modifying asphalt of modified emulsifying asphalt, the penetration degree of regulating modifying asphalt by the consumption of regulating compatilizer in preparation polymer modified asphalt process makes it satisfy the requirement of preparation modified emulsifying asphalt.
In addition, the fast characteristic of breakdown of emulsion when guaranteeing that the finished product have high evaporation residuals content, high viscosity and construction simultaneously, and satisfy the requirement of material stability in storage, must select suitable emulsifying agent kind, mix mixing ratio and consumption, and add certain amount of stabilizer and thickening material.
Prior art is not dark to the modified emulsifying asphalt research that can satisfy the special applications needs that high performance requirements is more arranged, to being exclusively used in high-grade highway synchronous surface dressing wearing course binding material or the modified emulsifying asphalt material of the bituminous concrete cover bonding layer material of constructing does not synchronously relate to as yet.
Bituminous composition of the present invention has higher high-temperature stability, low temperature flexibility and interlaminar bonding intensity, evaporation residue content height, de-emulsification speed are fast, are applicable to high-grade highway synchronous surface dressing wearing course binding material or the bituminous concrete cover bonding layer material of constructing synchronously.
Summary of the invention
The object of the present invention is to provide a kind of bituminous composition and preparation method thereof.Bituminous composition of the present invention has higher high-temperature stability, low temperature flexibility and interlaminar bonding intensity, evaporation residue content height, de-emulsification speed are fast, are applicable to high-grade highway synchronous surface dressing wearing course binding material or the bituminous concrete cover bonding layer material of constructing synchronously.
Bituminous composition of the present invention comprises 63～70% modifying asphalt and 30～37% soap lye by mass percentage;
Wherein modifying asphalt penetration degree (25 ℃, 100g 5s) is 100～120dmm, consists of by mass percentage:
Petroleum pitch: 84～92%,
Polymkeric substance: 3.5～5%,
Stablizer: 0.05～0.2%,
Compatilizer: 4～10%,
Weighting agent: 0～3%;
Soap lye consists of by mass percentage:
Emulsifying agent: 0.8～1.5%,
Emulsion stabilizer: 0.1～0.2%,
Thickening material: 0.03～0.06%,
Water: add to 100%, and to regulate soap lye pH value by concentrated hydrochloric acid be 1.5～2.5;
Described petroleum pitch is the petroleum pitch of No. 70, satisfied " asphalt highway construction technique normalizing JTG F40-2004 ", No. 90 or No. 110 index requests, 15 ℃ of relative densities are greater than 1.02, mass loss is-0.3%～0 before and after aging, wherein 60 ℃ of kinetic viscosities of No. 70 pitch are not more than 220Pa.s, 60 ℃ of kinetic viscosities of No. 90 pitch are not more than 180Pa.s, and 60 ℃ of kinetic viscosities of No. 110 pitch are not more than 130Pa.s.
Described polymkeric substance comprises a kind of a kind of line-type block polymer that can be represented by general formula ABA that can be represented star block copolymer and 50～70% by general formula (AB) nX of 30～50% by mass percentage; Wherein the star block copolymer weight-average molecular weight is 20～300,000, and the line-type block polymer weight-average molecular weight is 10～150,000; In general formula (AB) nX and ABA, A is the segment that is obtained by vinylbenzene, alpha-methyl styrene, p-methylstyrene or vinyl pyridine polymerization, and B is by divinyl, isoprene, chloroprene or 2, the segment that the polymerization of 3-dimethylbutadiene obtains; N is 3 or 4 in general formula (AB) nX, and X is the coupling agent residue that has 3 or 4 functional groups; The shared mass percent of A component is 20-40% in general formula (AB) nX and ABA.
Described stablizer is one or more the combination in organic peroxy compound, organic azo-compound, SULPHUR POWDER, organic polysulfide, organic sulfonic acid compound or the metal oxide.
By product solvent-extracted oil when described compatilizer is inverted sequence technology bright stock or petroleum catalytic cracking return one or both the combination in the solvent-extracted oil that splits oil, wherein solvent refers to N-Methyl pyrrolidone, furfural or phenol solvent, extracts oil fragrance out and divides content greater than 90%.
Described weighting agent is one or both the combination in diatomite or the rock asphalt.
Described emulsifying agent comprises 50～70% cationic emulsifier, 20～40% nonionic emulsifying agent, 2～10% solvents by mass percentage; Wherein cationic emulsifier is one or more the combination in 12～octadecyl trimethylene diamines, 12～octadecyl amide group polyamines, 1-aminoethyl-2-14～octadecyl tetrahydroglyoxaline, 14～octadecyl dimethyl hydroxyethyl ammonium chloride, 14～octadecyl trimethyl ammonium chloride or the 14～octadecyl trimethylammonium bromide; Nonionic emulsifying agent is one or more the combination in polyoxyethylene octylphenol ether, polyoxyethylene nonylphenol ether or the anhydrous sorbitol fatty acid ester; Solvent is one or more the combination in acetone, Virahol or the water.
Described emulsion stabilizer is a kind of in ammonium chloride or the calcium chloride; Described thickening material is one or both the combination in ethyl cellulose, Vltra tears, Xylo-Mucine, the sepiolite.
Described bituminous composition can reach following technical indicator:
Evaporation residue content is 63～70%, and test method is T0651-1993;
Aerosol processing de-emulsification speed test demulsification efficiency is not less than 40%, and test method is ASTM D-244 ﹠amp; AASHTO T-59;
The evaporation residue softening temperature is not less than 60 ℃, and test method is T0606-2000.
The preparation method of bituminous composition of the present invention, it comprises the steps:
(i) modifying asphalt preparation: with mass percent is that 84～92% petroleum pitch is heated to 175～185 ℃ to flow state, under whipped state, add 4～10% compatilizer successively, 3.5～5% polymkeric substance and 0～3% weighting agent, be the colloidal mill grinding of 2000～4000RPM again by rotating speed, then swelling 2～6 hours under whipped state, add 0.05～0.2% stablizer then, reacted 1-4 hour, make modifying asphalt, by regulating the ratio of the compatilizer that adds, (25 ℃ of control modifying asphalt penetration degrees, 100g 5s) is 100～120dmm;
(ii) soap lye preparation: with mass percent is that to join temperature be in 40～60 ℃ the water for the thickening material of 0.8～1.5% emulsifying agent, 0.1～0.2% emulsion stabilizer and 0.03～0.06%, the water yield adds to 100%, and to regulate soap lye pH value with concentrated hydrochloric acid be 1.5～2.5, stir, make soap lye;
(iii) the modifying asphalt with mass percent 63～70% is heated to 160～175 ℃, the soap lye of mass percent 30～37% is heated to 40～60 ℃, be the colloidal mill grinding of 2000～4000RPM together by rotating speed, cool to 70～98 ℃ by interchanger again, make described bituminous composition product milk sap.
Described bituminous composition, it can be used for synchronous surface dressing wearing course binding material or constructs bituminous concrete cover water-proof binding layer material synchronously.
Embodiment
Embodiment one:
(1) modifying asphalt preparation: with mass percent is that 89.1% No. 90 petroleum pitch are heated to 175～185 ℃ to flow state, under whipped state, add 7% inverted sequence furfural extract oil, 3.8% polymkeric substance (polymkeric substance comprise 40% star-shaped sbs and 60% type SBS) successively, be the colloidal mill grinding of 2500RPM again by rotating speed, then swelling 4 hours under whipped state, add 0.1% SULPHUR POWDER then, reacted 3 hours, make modifying asphalt;
(2) soap lye preparation: with mass percent is that to join temperature be in 40-60 ℃ the water for the sepiolite of 0.9% emulsifying agent (emulsifying agent comprises 30% hexadecyldimethyl benzyl ammonium hydroxyethyl ammonium chloride, 1-aminoethyl-2-14～octadecyl tetrahydroglyoxaline of 30%, 30% polyoxyethylene nonylphenol ether NP-7,5% Virahol and 5% water), 0.15% calcium chloride, 0.03% Vltra tears and 0.03%, the water yield adds to 100%, and to regulate soap lye pH value with concentrated hydrochloric acid be 1.5～2.5, stir, make soap lye;
(3) modifying asphalt with mass percent 66% is heated to 160～175 ℃, the soap lye of mass percent 34% is heated to 40～60 ℃, be the colloidal mill grinding of 3000RPM by rotating speed together, cool to 70～98 ℃ by interchanger again, make product milk sap.
Embodiment two:
(1) modifying asphalt preparation: with mass percent is that 87.06% No. 110 petroleum pitch are heated to 175～185 ℃ to flow state, under whipped state, add 8.5% inverted sequence furfural extract oil, 4.3% polymkeric substance (polymkeric substance comprise 35% star-shaped sbs and 65% type SBS) successively, be the colloidal mill grinding of 3000RPM again by rotating speed, then swelling 5 hours under whipped state, add 0.06% organic polysulfide and 0.08% SULPHUR POWDER then, reacted 3.5 hours, make modifying asphalt;
(2) soap lye preparation: with mass percent is that to join temperature be in 40-60 ℃ the water for the sepiolite of 1% emulsifying agent (emulsifying agent comprises 35% hexadecyldimethyl benzyl ammonium hydroxyethyl ammonium chloride, 30% octadecyl trimethylene diamines, 25% polyoxyethylene octylphenol ether OP-10,5% acetone and 5% water), 0.18% ammonium chloride, 0.03% Xylo-Mucine and 0.02%, the water yield adds to 100%, and to regulate soap lye pH value with concentrated hydrochloric acid be 1.5～2.5, stir, make soap lye;
(3) modifying asphalt with mass percent 64% is heated to 160～175 ℃, the soap lye of mass percent 36% is heated to 40～60 ℃, be the colloidal mill grinding of 3000RPM by rotating speed together, cool to 70～98 ℃ by interchanger again, make product milk sap.
Claims (10)
1, a kind of bituminous composition is characterized in that: it comprises 63～70% modifying asphalt and 30～37% soap lye by mass percentage;
Wherein 25 ℃ of penetration degrees of modifying asphalt are 100～120dmm, consist of by mass percentage:
Petroleum pitch: 84～92%,
Polymkeric substance: 3.5～5%,
Stablizer: 0.05～0.2%,
Compatilizer: 4～10%,
Weighting agent: 0～3%;
Soap lye consists of by mass percentage:
Emulsifying agent: 0.8～1.5%,
Emulsion stabilizer: 0.1～0.2%,
Thickening material: 0.03～0.06%,
Water: add to 100%, and to regulate soap lye pH value by concentrated hydrochloric acid be 1.5～2.5;
This bituminous composition can reach following technical indicator:
Evaporation residue content is 63～70%,
Aerosol processing de-emulsification speed test demulsification efficiency is not less than 40%,
The evaporation residue softening temperature is not less than 60 ℃.
2, bituminous composition according to claim 1, it is characterized in that: described petroleum pitch is the petroleum pitch of No. 70, satisfied " asphalt highway construction technique normalizing JTG F40-2004 ", No. 90 or No. 110 index requests, 15 ℃ of relative densities are greater than 1.02, mass loss is-0.3%～0 before and after aging, wherein 60 ℃ of kinetic viscosities of No. 70 pitch are not more than 220Pa.s, 60 ℃ of kinetic viscosities of No. 90 pitch are not more than 180Pa.s, and 60 ℃ of kinetic viscosities of No. 110 pitch are not more than 130Pa.s.
3, bituminous composition according to claim 1 is characterized in that: described polymkeric substance comprise by mass percentage 30～50% a kind of can be by general formula (AB)
nX represents a kind of line-type block polymer that can be represented by general formula ABA of star block copolymer and 50～70%; Wherein the star block copolymer weight-average molecular weight is 20～300,000, and the line-type block polymer weight-average molecular weight is 10～150,000; At general formula (AB)
nAmong X and the ABA, A is the segment that is obtained by vinylbenzene, alpha-methyl styrene, p-methylstyrene or vinyl pyridine polymerization, and B is by divinyl, isoprene, chloroprene or 2, the segment that the polymerization of 3-dimethylbutadiene obtains; At general formula (AB)
nN is 3 or 4 among the X, and X is the coupling agent residue that has 3 or 4 functional groups; At general formula (AB)
nThe shared mass percent of A component is 20-40% among X and the ABA.
4, bituminous composition according to claim 1 is characterized in that: described stablizer is one or more the combination in organic peroxy compound, organic azo-compound, SULPHUR POWDER, organic polysulfide, organic sulfonic acid compound or the metal oxide.
5, bituminous composition according to claim 1, it is characterized in that: by product solvent-extracted oil when described compatilizer is inverted sequence technology bright stock or petroleum catalytic cracking return one or both the combination in the solvent-extracted oil that splits oil, wherein solvent refers to N-Methyl pyrrolidone, furfural or phenol solvent, extracts oil fragrance out and divides content greater than 90%.
6, bituminous composition according to claim 1 is characterized in that: described weighting agent is one or both the combination in diatomite or the rock asphalt.
7, bituminous composition according to claim 1 is characterized in that: described emulsifying agent comprises 50～70% cationic emulsifier, 20～40% nonionic emulsifying agent, 2～10% solvents by mass percentage; Wherein cationic emulsifier is one or more the combination in 12～octadecyl trimethylene diamines, 12～octadecyl amide group polyamines, 1-aminoethyl-2-14～octadecyl tetrahydroglyoxaline, 14～octadecyl dimethyl hydroxyethyl ammonium chloride, 14～octadecyl trimethyl ammonium chloride or the 14～octadecyl trimethylammonium bromide; Nonionic emulsifying agent is one or more the combination in polyoxyethylene octylphenol ether, polyoxyethylene nonylphenol ether or the anhydrous sorbitol fatty acid ester; Solvent is one or more the combination in acetone, Virahol or the water.
8, bituminous composition according to claim 1 is characterized in that: described emulsion stabilizer is a kind of in ammonium chloride or the calcium chloride; Described thickening material is one or both the combination in ethyl cellulose, Vltra tears, Xylo-Mucine, the sepiolite.
9, a kind of preparation method of bituminous composition according to claim 1, it is characterized in that: it comprises the steps:
(i) modifying asphalt preparation: with mass percent is that 84～92% petroleum pitch is heated to 175～185 ℃ to flow state, under whipped state, add 4～10% compatilizer, 3.5～5% polymkeric substance and 0～3% weighting agent successively, be the colloidal mill grinding of 2000～4000RPM again by rotating speed, then swelling 2～6 hours under whipped state, add 0.05～0.2% stablizer then, reacted 1-4 hour, make modifying asphalt, by regulating the ratio of the compatilizer that adds, 25 ℃ of penetration degrees of control modifying asphalt are 100～120dmm;
(ii) soap lye preparation: with mass percent is that to join temperature be in 40～60 ℃ the water for the thickening material of 0.8～1.5% emulsifying agent, 0.1～0.2% emulsion stabilizer and 0.03～0.06%, the water yield adds to 100%, and to regulate soap lye pH value with concentrated hydrochloric acid be 1.5～2.5, stir, make soap lye;
(iii) the modifying asphalt with mass percent 63～70% is heated to 160～175 ℃, the soap lye of mass percent 30～37% is heated to 40～60 ℃, be the colloidal mill grinding of 2000～4000RPM together by rotating speed, cool to 70～98 ℃ by interchanger again, make described bituminous composition product milk sap.
10, the purposes of the described bituminous composition of claim 1 is characterized in that it can be used for synchronous surface dressing wearing course binding material or constructs bituminous concrete cover water-proof binding layer material synchronously.
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