CN102766340A - Modified biological asphalt material, biological asphalt mixture, preparation method thereof and applications - Google Patents
Modified biological asphalt material, biological asphalt mixture, preparation method thereof and applications Download PDFInfo
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Abstract
The invention provides a modified biological asphalt material, a biological asphalt mixture, a preparation method thereof and applications. The modified biological asphalt material is prepared by a mixture of a biological asphalt compound, a modifying agent, a compatilizer and a stabilizing agent. The preparation method is simple and easy to practice, the pollution is low in a production process, and raw materials are simple and easy to obtain. The obtained modified biological asphalt material can be directly used as road asphalt for mixture production. The biological asphalt mixture and the preparation method thereof are provided, and the obtained biological asphalt mixture can be used for paving roads.
Description
Technical field
The present invention relates to the field of bitumen technology of road engineering, particularly modification biological bituminous material, its preparation method and purposes also relate to a kind of biological asphalt and preparation method thereof.
Background technology
Petroleum pitch is derived from oil, and the minimizing day by day of its resource must make petroleum pitch well sold and in short supply day by day.Because present overexploitation and use, petroleum resources are about to face exhausted danger, scientist expects the middle of this century, and promptly about the year two thousand fifty, petroleum resources will be exploited totally.
The problem of petroleum resources present situation and environmental development forces us constantly to seek and uses new, reproducible equivalent material.At present, the biomass energy with all strength researched and developed of the whole world is exactly a kind of inexhaustible, nexhaustible renewable energy source.This material has all taken industrialized paces both at home and abroad owing to have extensive, the renewable and biodegradable characteristic of raw material.
China's biomass resource amount is huge, has 700,000,000 tons of agricultural byproducts to can be used as energy utilization approximately.Wherein, the agricultural crop straw YO is about 600,000,000 tons; About 1.3 hundred million tons of other agricultural wastes; The forestry biomass resource can be used for about 300,000,000 tons of the energy purposes every year; About 2.5 hundred million tons of municipal solid wastes contracts amount.Compare with fossil energy, biomass energy has environmental friendliness and renewable two big outstanding advantages.
Pyrolysis oil preparation is the main technological approaches that present bioenergy production utilizes; Biomass pyrolytic is claimed thermo-cracking or cracking again; Typically refer under anaerobic or anoxic environment, biomass are heated to heat up and cause that molecular breakdown produces the process of coke, condensability volatile matter and gaseous product, and the condensability volatile matter is cooled to flowable liquid fast; Become bio oil or tar, its productive rate is about 40%-60%.Will pass through further processing through pyrogenous origin bio oil crude oil, for example classification, refining and separation just can obtain oil fuel and Chemicals such as gasoline, diesel oil, methyl alcohol, ethanol.Ground such as China Anhui, Shandong and northeast have built up the demo plant of biomass pyrolytic system oil, and stable, have ensured and have produced biological bituminous raw material supply.
Bio oil still has heavy oil or residual oil resistates greatly after treatment, all directly directly burns as low-grade fuel usually.But; The character of heavy oil or residual oil and road are very approaching with pitch, can be modified as Road construction pitch---biological pitch, so both can realize the utilization again of relative " waste material " in derived energy chemical field; Turn waste into wealth, can form the complementary production system of recycling economy again.
Bio oil obtains biological pitch through distillation/extraction/thermo-oxidative ageing/heat-treatment processing process such as blending, and prepares biological bituminous composition with petroleum pitch etc.The biological pitch and the biological bituminous composition that obtain have excellent plasticity and cementability, can be used as road pavement.But its supporting capacity is poor, and anti-rut of high temperature and crack resistance at low-temperature are poor, can not satisfy the high performance asphalt pavement making requirement of Modern Traffic and heavily loaded road.
Modifying asphalt is the method for the present raising asphalt performance of using always.Through being carried out modification, properties-correcting agent such as interpolation polymkeric substance in biological pitch and the biological bituminous composition can improve elasticity, toughness and viscosity; Improve resistance to fatigue and reduce the susceptibility of biological bituminous material temperature; The road surface of making also can be improved resistance to permanent deformation significantly, temperature resistance contracts and antifatigue cracking etc., shows good performance.
Summary of the invention
The problem that invention will solve
The objective of the invention is to propose to improve the method for biological pitch and composition properties thereof; And preparation modification biological bituminous material and biological asphalt; And in order to replace the petroleum pitch surfacing; Thereby reduce the use of petroleum pitch, in order to solve at present just in widely used petroleum pitch resource exhaustion, selling at exorbitant prices and the not good enough problem of eco-environmental prote.
The scheme that is used to deal with problems
A kind of modification biological bituminous material is characterized in that, said modification biological bituminous material contains biological bituminous composition, properties-correcting agent, first compatilizer and stablizer; Said biological bituminous composition comprises biological pitch and is selected from least a in petroleum pitch, rock asphalt, coal-tar pitch, second compatilizer; Said properties-correcting agent is polymer materials or spent high molecular material; Total mass based on described modification biological bituminous material; The content of said biological bituminous composition is 70-90 quality %; The content of said properties-correcting agent is 0-20 quality %, and the content of said first compatilizer is 0-20 quality %, and the content of said stablizer is 0-2 quality %.
Wherein, In the described biological bituminous composition, based on the total mass of described biological bituminous composition, said biological bituminous content is 10-90 quality %; The content of said petroleum pitch is 0-90 quality %; The content of said rock asphalt is 0-90 quality %, and the content of said coal-tar pitch is 0-90 quality %, and the content of said second compatilizer is that 0-30 quality % forms.
Modification biological bituminous material of the present invention, wherein said polymer materials are rubber, resin, thermoplastic elastomer or its combination.
Modification biological bituminous material of the present invention, wherein said rubber are selected from one or more of tree elastomer, X 050, styrene-butadiene rubber(SBR), terpolymer EP rubber, paracril, cis-1,4-polybutadiene rubber.
Modification biological bituminous material of the present invention, wherein said resin are selected from one or more of Vilaterm, PS, Vestolen PP 7052, ethylene-vinyl acetate copolymer.
Modification biological bituminous material of the present invention, wherein said thermoplastic elastomer are selected from one or more of styrene-butadiene-styrene multipolymer (SBS), styrene-isoprene-styrene copolymer-(SIS), styrene-butadiene-styrene copolymer hydrogenating product (SEBS), styrene-butadiene copolymer (SB).
Modification biological bituminous material of the present invention, wherein said spent high molecular material is for reclaiming plastics or shoddy.
Modification biological bituminous material of the present invention, wherein said shoddy particle diameter is the 10-200 order.
Modification biological bituminous material of the present invention, wherein said first compatilizer are rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination.
Modification biological bituminous material of the present invention, wherein said second compatilizer are rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination.
The preparation method that a kind of modification biological bituminous material also is provided of the present invention; It is characterized in that, biological bituminous composition, first compatilizer, properties-correcting agent, stablizer are prepared described modification biological bituminous material through premix, swelling, shearing grinding, growth technology or process combination.
Modification biological bituminous material of the present invention can be used on the road of mating formation.
The present invention provides a kind of biological asphalt, and it comprises modification biological bituminous material, mineral aggregate, and the mass ratio of said modification biological bituminous material and mineral aggregate is 9-2:91-98.
The preparation method of the biological asphalt of the present invention; It is characterized in that the described modification biological bituminous material of claim 1-10 is heated to 100-200 ℃; Mineral aggregate is heated to 110-230 ℃, obtains said biological asphalt after said modification biological bituminous material and mineral aggregate are stirred.
The preparation method of biological asphalt of the present invention is characterized in that, the time that said modification biological bituminous material and said mineral aggregate stir is 8-180 second.
Biological asphalt of the present invention can be used at the road of mating formation.
The effect of invention
At first; Substitute petroleum pitch with biological pitch and can reduce the pitch production cost; In the long term; It is starting material that the resource exhaustion of contrast petroleum pitch and problem such as non-renewable, biological pitch intermediate product adopt eagroforestry by product such as sawdust and stalk, rice husk or waste, has determined its recyclability and green environmental protection.
Secondly,, can and maintain public highway, can reduce pitch production cost about 15% with its alternative petroleum pitch construction with modification biological bituminous material of the present invention.
Once more, through preparing biological bituminous composition, make biomass resources such as agriculture and forestry by-product obtain efficient recycling.The enforcement of patent of the present invention can improve the comprehensive use value of bio oil greatly.
In addition, starting material of the present invention derive from the cheap biomass resource of China, and the starting material source is abundant; Can replace petroleum resources by its biological pitch for preparing, reduce dependency petroleum resources.
The present invention has that preparation is simple, cost is low, the characteristics of excellent performance.
Embodiment
Modification biological bituminous material of the present invention is processed by the mixture that contains biological bituminous composition, properties-correcting agent, compatilizer and stablizer.
The used biological bituminous composition of the present invention is biological pitch and following a kind of material or multiple material according to certain proportion of composing combination: A petroleum pitch, B rock asphalt, C coal-tar pitch, D compatilizer etc.Wherein, said biological bituminous content is 10-90 quality %, and the content of said petroleum pitch is 0-90 quality %, and the content of said rock asphalt is 0-90 quality %, and the content of said coal-tar pitch is 0-90 quality %, and the content of said compatilizer is 0-30 quality %.
Biological pitch described in the present invention is meant that bio oil prepares product through at least two kinds of process combination in distillation, extraction, oxidation and four kinds of technologies of blending.Described bio-crude oil is raw material for utilizing biomass, the oily liquids product that process high temperature fast pyrogenation makes.The preferred biomass of using comprise wood chip in the eagroforestry by product, wheat stalk, rice husk, corn straw, bamboo wood, bark, oak, switchgrass etc. and domestic waste etc.
Biological pitch is the viscous liquid material, and this material has cohesiveness, can stick building stones and be prepared as compound and be used for the making road.Biological pitch can reach penetration degree (25 ℃, 100g, 5s) (1/10mm) 20-260, ductility (15 ℃, 5cm/min)/cm 1.5-100, softening temperature/℃ 30-85, adhesivity 4-5 level.
Among the described biological bituminous preparation method of the present invention, wherein the assembled scheme of distil process, extraction process, oxidizing process and mixing process is preferably:
(1) bio oil is handled through distil process earlier and is obtained biological pitch intermediate product, handles obtaining biological pitch again through oxidizing process;
(2) bio oil is handled through the distil process under the different condition earlier and is obtained different biological pitch intermediate products, different biological pitch intermediate products is handled obtaining biological pitch again through mixing process;
(3) bio oil is handled through distil process earlier and is obtained biological pitch intermediate product 1; Handle through oxidizing process again and obtain biological pitch intermediate product 2, biological pitch intermediate product 1 is handled obtaining biological pitch again with biological pitch intermediate product 2 through mixing process;
(4) bio oil is handled through extraction process earlier and is obtained biological pitch intermediate product, handles obtaining biological pitch again through oxidizing process;
(5) bio oil is handled through different extraction process earlier and is obtained different biological pitch intermediate products, different biological pitch intermediate products is handled obtaining biological pitch again through mixing process; Or
(6) bio oil is handled through extraction process earlier and is obtained biological pitch intermediate product 1, handles obtaining biological pitch intermediate product 2 again through oxidizing process, more biological pitch intermediate product 1 and biological pitch intermediate product 2 is handled through mixing process.
" distil process under the different condition " of the present invention is meant that distillation condition such as distillation temperature, distillation pressure is different in still-process, thereby obtains different biological pitch intermediate products." different extraction process " of the present invention are meant through using different solvents to extract, thereby obtain different biological pitch intermediate products.
Mixing process is meant by biological bituminous specification of quality component to be concocted again and prepares pitch among the present invention.Can handle the different biological pitch intermediate product that obtains through distil process, extraction process, oxidizing process with bio oil and make the blending raw material, also can be with the different biological pitch intermediate product that obtains under the bio oil process different condition of same technology as the blending raw material.
Preferred distillation is normal pressure or underpressure distillation among the present invention, and distillation method can adopt normal pressure or vacuum distillation method among the present invention, obtains through fractionation by distillation that boiling point is the cut more than 100 ℃ under the normal pressure, preferred cut more than 150 ℃.The air distillation technological temperature is preferably 100-150 ℃, and the vacuum distillation method parametric optimization is system pressure 20-80KPa, temperature 52-96 ℃.
Oxidizing process comprises described in the present invention: (A) bio oil or bio oil directly contact the oxidation step that also constantly stir 0.1-48h with air through one or more processing back products therefroms in said distil process, extraction process, the mixing process under 50-260 ℃ temperature; Or (B) bio oil or bio oil through in said distil process, extraction process, the mixing process one or more handle back products therefroms in oxidizing tower at temperature 50-260 ℃, carry out the step of thermo-oxidative ageing under the condition of digestion time 0.1-48h.Preferably the temperature in (A) oxidation step is 100-200 ℃, oxidization time 0.1-3h; (B) temperature in the thermo-oxidative ageing step is 80-200 ℃, and digestion time is 0.1-3h.Preferably the said oxidizing tower in (B) thermo-oxidative ageing step is the barrel reactor of hollow, establishes air at the bottom of the tower and feeds distribution pipe, thermopair that thermometric is used and level gauging point; Said (B) thermo-oxidative ageing step comprises: the product of said bio oil or its distillation, extraction treatment is fed in the tower be heated to 80-200 ℃ earlier, then air is gone into the tower thermo-oxidative ageing 0.1-3h from the tower pucking.
After extraction process of the present invention was handled back products therefroms and mixed through in said distil process, oxidizing process, the mixing process one or more with solvent and said bio oil or said bio oil, separation obtaining extract again.Said solvent comprises water, organic solvent; Said extraction process comprises: mix through said distil process, oxidizing process, mixing process processing back products therefrom said bio oil or said bio oil (1) with water, obtain the water indissolvable component through filtration, spinning; (2) above-mentioned water indissolvable component is used organic solvent extraction; (3) organic solvent is separated with its extract, obtain extraction product after the oven dry.Said solvent is preferably deionized water, methylene dichloride, hexanaphthene.
Petroleum pitch of the present invention is preferably to satisfying No. 70, No. 90 and No. 110 petroleum pitch of " asphalt highway construction technique normalizing ".
Rock asphalt is preferably lake pitch, rock asphalt.
Coal-tar pitch can be low temperature coal-tar pitch, medium temperature coal pitch or high temperature coal-tar pitch.
Compatilizer of the present invention can use one of rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination.The compatilizer that in biological bituminous composition and modification biological bituminous material, uses can be the same or different, and preferably uses identical compatilizer.
One or more of the preferred tree elastomer of rubber of the present invention, X 050, styrene-butadiene rubber(SBR), terpolymer EP rubber, paracril, cis-1,4-polybutadiene rubber.
Thermoplastics of the present invention is preferably one or more in Vilaterm such as new LDPE (film grade) or high density polyethylene(HDPE), PS, Vestolen PP 7052 and the ethylene-vinyl acetate copolymer.
Thermoplastic elastomer of the present invention is preferably one or more of styrene-butadiene-styrene multipolymer (SBS), styrene-isoprene-styrene copolymer-(SIS), styrene-butadiene copolymer (SB).Used styrene-butadiene-styrene block copolymer is preferably the linear structure styrene-butadiene-styrene block copolymer; And the phenylethylene/butadiene ratio is preferably 30/70; 230 ℃ with the 2.16Kg condition under, melting index is preferably 0.5-5.0g/10min.
Waste or used plastics of the present invention is preferably the thermoplasticity waste or used plastics, is preferably waste and old new LDPE (film grade)/high density polyethylene(HDPE).
Shoddy of the present invention is preferably the rubber powder that is prepared by waste old, thereby can reach the purpose of utilization of waste material and environmental protection.Rubber powder can be commercially available, and also can the ordinary methods such as the known by one of skill in the art normal temperature method of waste and old air filled tyre, normal temperature wet method, normal temperature auxiliary agent method or low-temperature freezing of vehicles such as waste old such as car, motorbus, agricultural vehicle, truck be prepared.Preferred damaged tire can be and contains more jumbo tyre of natural gum or the higher little tire of synthetical glue content.Also the technical indicator of preferred rubber powder meets " sulfuration GB/T19208-2008 ", and preferably its particle diameter is the 20-80 order.
Compatilizer of the present invention for example can use one of rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination for promoting basic biological pitch and the confluent organic substance of petroleum pitch.
Contain biological bituminous material 70-90 quality % in the modification biological bituminous material provided by the invention, compatilizer 0-20 quality %, properties-correcting agent 0-20 quality %, stablizer 0-2 quality %.
Wherein said stablizer is this area stablizer commonly used, is generally a kind of among organo-peroxide, MOX, sulphur, the vulcanization accelerator or more than one mixture.Can use the commercially available asphalt modification of the industry to use stablizer, for example open up the modified asphalt stabilizer of manufacturers such as chemical industry ltd, Dongying profit Feng Bo Yueshi oil tech ltd, auspicious way road, Shanghai engineering ltd, Shanghai Qunkang Asphaltum Technology Co., Ltd., Shandong Dashan Road & Bridge Co., Ltd. available from the gloomy space synthetic materials in Shaoxin City ltd, Hubei Dao Weisi development in science and technology ltd, Panjin space.
Modification biological bituminous material preparation method of the present invention is preferably the biological bituminous composition that measures is heated to 140 ℃-160 ℃; Stir abundant swelling 20-60min; Add the properties-correcting agent that measures, sending into the high-shear machine then is 3000-5000r/min in shearing rate, adds the stablizer that measures behind 170 ℃ of-190 ℃ of shear temperature down cut 10-30min; After continuing to shear 30-50min; At slow speed of revolution 200-300r/min, whipping temp is to grow 20-30min under 130 ℃ of-150 ℃ of conditions, promptly gets the modification biological bituminous material again.
Mineral aggregate of the present invention is one or more of the coarse aggregate, fine aggregate and the breeze that satisfy " asphalt highway construction technique normalizing ".
Biological asphalt provided by the invention comprises modification biological bituminous material, mineral aggregate, and the mass ratio of said modification biological bituminous material and mineral aggregate is 9-2:91-98.
When modification biological bituminous material of the present invention is used to prepare biological asphalt; Can at first the modification biological bituminous material be heated to 100-200 ℃; Mineral aggregate is heated to 110-230 ℃, obtains biological asphalt after modification biological bituminous material and mineral aggregate are stirred.
Below will embodiment of the present invention be described, but the present invention is not limited to these certain embodiments through embodiment.
Embodiment
Employed starting material among each embodiment:
Bio oil: Anhui is prone to ability biomass energy ltd;
Matrix pitch: middle extra large No. 70 petroleum pitch;
Rock asphalt: Shandong road and bridge group;
SBS: Yueyang petrochemical industry, trade mark YH-791H, the S/B ratio is 30/70, density 0.94g/cm
3, melting index (190 ℃, 2.16Kg) 0.5g/10min.
New LDPE (film grade) (LDPE): Nanjing YPC Refining&Chemical Co., Ltd., trade mark 2426H, density 0.922-0.926g/cm
3, melting index (190 ℃, 2.16Kg) 1.7-2.2g/10min.
Shoddy: Science and Technology Ltd. is risen, 80 orders by the general foreign China in Beijing.
SBR: Jilin Chemical Industrial Co. Ltd..
Rubber oil: inspire confidence in profit available from the Shandong Dongying and reach chemical industry ltd.
Aromatic hydrocarbon oil: light constituent content between 65%-75%, the skies, Huludao City industry and trade ltd.
Stablizer: available from Research Institute of Petro-Chemical Engineering, the pearl particle.
Mineral aggregate: select AC13 type grating for use, see table 1.
Table 1
| Size of mesh, mm | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| The test grating | 100 | 94.4 | 82.4 | 55.0 | 30.2 | 22.6 | 17.7 | 12.9 | 8.4 | 4.4 |
< preparation of biological bituminous composition >
Preparation example 1
Adopt atmospheric distillation plant, the 1000g bio oil progressively is heated to 150 ℃, separate obtaining boiling point greater than 150 ℃ bio oil cut; Time is 6.5h, then with product of distillation thermo-oxidative ageing 0.5h in oxidizing tower, makes the abundant thermo-oxidative ageing of distillation gained cut obtain biological pitch.
Above-mentioned biological pitch that obtains and rubber oil are descended to stir 2 hours at 140 ℃ in the ratio of 9:1, obtain biological bituminous composition 1.
Preparation example 2
With product of distillation thermo-oxidative ageing 0.5h in oxidizing tower that preparation example 1 obtains, make the abundant thermo-oxidative ageing of distillation gained cut obtain brownish black, thick oxidation products.
The product of distillation that above-mentioned oxidation products that obtains and preparation example 1 are obtained carries out the mixing process processing; The two ratio is mass ratio 3:7; Adopt the high-shear dispersion machine mixture to be sheared 30min, observe and make each component thorough mixing, homodisperse, obtain biological pitch with the rotating speed of 3000r/min.
No. 70 petroleum pitch are heated to softening flowing; Add the above-mentioned biological pitch that obtains again, the two ratio is mass ratio 7:3, adopts the high-shear dispersion machine with the rotating speed of 3000r/min mixture to be sheared 30min; Observation makes it abundant dispersion, obtains biological bituminous composition 2.
Preparation example 3
Adopt the biological pitch in the vacuum distillation method separating bio-oil, the vacuum tightness of vacuum pump is adjusted to 40KPa, the 1000g bio oil progressively is heated to 75 ℃, separate obtaining atmospheric boiling point greater than 150 ℃ underpressure distillation cut.
With the above-mentioned bio oil cut that obtains thermo-oxidative ageing 0.5h in oxidizing tower, make distillation gained cut thermo-oxidative ageing obtain brownish black, thick oxidation products.
Rock asphalt is heated to softening flowing, adds the above-mentioned oxidation products that obtains again, the two ratio is mass ratio 2:8, adopts the high-shear dispersion machine with the rotating speed of 3000r/min mixture to be sheared 30min, observes and makes it abundant dispersion, obtains biological bituminous composition 3.
Preparation example 4
Under the condition of high-speed stirring, the 500g bio oil is dropwise splashed in the beaker that fills 2000mL zero(ppm) water that is immersed in (0-5 ℃) in the ice-water bath.After treating that bio oil all splashes into, restir half a hour; Then the mixture in the beaker is poured into and carried out suction filtration in the Suo Shi funnel, water-soluble component is collected in the filter flask through filter paper in the bio oil, and the water indissolvable component is collected on the filter paper; The water indissolvable component is transferred in the cellulose thimble of Soxhlet extractor, is used methylene dichloride to be its solvend of SX, extracting to filtrate be colourless till; Utilize Rotary Evaporators that methylene dichloride is separated (biological pitch intermediate product) with its solvend, asphalt component is transferred in the constant temperature oven under 105 ℃, dry 30 minutes, obtain extraction product.
With the above-mentioned biological pitch extraction product thermo-oxidative ageing 0.1-3h in oxidizing tower that obtains, make it that oxidizing process processed products that abundant thermo-oxidative ageing obtains pitch black brown heavy-gravity bio oil dichloromethane extraction component, promptly biological pitch take place.
No. 70 petroleum pitch are heated to softening flowing; Add the above-mentioned biological pitch that obtains again, the two ratio is mass ratio 7:3, adopts the high-shear dispersion machine with the rotating speed of 3000r/min mixture to be sheared 30min; Observation makes it abundant dispersion, obtains biological bituminous composition 4.
< modification biological bituminous material embodiment >
Embodiment 1
The above-mentioned biological bituminous composition 1 of 500g is added in the test chamber of 1L, pitch is heated to 130 ℃, add the rubber oil of 35g; The SBS that adds 17.5g after stirring; After stirring 30min under 140 ℃ of conditions, utilize high-speed shearing machine behind 180 ℃ and 4000r/min down cut 20min, to add the 0.75g stablizer, after continuing to shear 20min; Under 160 ℃ of conditions, grow 20min, promptly obtain modification biological bituminous material A.
Embodiment 2
The above-mentioned biological bituminous composition of 500g 2 is added in the test chamber of 1L, be heated to 130 ℃ and stir.The SBR that adds 15g then after stirring 30min under 140 ℃ of conditions, utilizes high-speed shearing machine behind 180 ℃ and 4000r/min down cut 30min, under 160 ℃ of conditions, to grow 20min, promptly obtains modification biological bituminous material B.
Embodiment 3
The above-mentioned biological bituminous composition of 500g 2 is added in the test chamber of 1L and be heated to 110 ℃; After adding 10g aromatic hydrocarbon oil mixing and stirring and being heated to 150 ℃; The LDPE that adds 15g; After stirring 30min under 150 ℃ of conditions, utilize high-speed shearing machine behind 180 ℃ and 4000r/min down cut 30min, under 160 ℃ of conditions, to grow 20min, promptly obtain modification biological bituminous material C.
Embodiment 4
Get in the test chamber that the above-mentioned biological bituminous composition 3 of 500g adds 1L and be heated to 110 ℃; After adding 15g rubber oil mixing and stirring and being heated to 150 ℃; The LDPE that adds 30g; After stirring 30min under 150 ℃ of conditions, utilize high-speed shearing machine behind 180 ℃ and 4000r/min down cut 30min, under 160 ℃ of conditions, to grow 20min, promptly obtain modification biological bituminous material D.
Embodiment 5
Get in the test chamber that the above-mentioned biological bituminous composition 4 of 500g adds 1L and be heated to 110 ℃; After adding 10g rubber oil mixing and stirring and being heated to 150 ℃; The shoddy that adds 60g; After stirring 30min under 150 ℃ of conditions, utilize high-speed shearing machine behind 180 ℃ and 4000r/min down cut 30min, under 160 ℃ of conditions, to grow 20min, promptly obtain modification biological bituminous material E.
Embodiment 6
Get in the test chamber that the above-mentioned biological bituminous composition 2 of 500g adds 1L and be heated to 110 ℃; After adding 20g aromatic hydrocarbon oil mixing and stirring and being heated to 150 ℃; The shoddy that adds 60g; After stirring 30min under 150 ℃ of conditions, utilize high-speed shearing machine behind 180 ℃ and 4000r/min down cut 30min, under 160 ℃ of conditions, to grow 20min, promptly obtain modification biological bituminous material F.
<biological asphalt embodiment >
Embodiment 7
Embodiment 1 resulting modification biological bituminous material A (250g) put in the amalgamator that accommodates 160 ℃ of hot mineral aggregates (5100g) mixed and stirred 50 seconds, obtain biological asphalt A.
Embodiment 8
Gained embodiment 2 resulting modification biological bituminous material B (280.5g) are put in the amalgamator of the hot mineral aggregate (5100g) that accommodates 150 ℃ and mixed and stirred 60 seconds, obtain biological asphalt B.
Embodiment 9
Gained embodiment 3 resulting modification biological bituminous material C (263.2g) are put in the amalgamator of the hot mineral aggregate (5000g) that accommodates 140 ℃ and mixed and stirred 20 seconds, obtain biological asphalt C.
Embodiment 10
Embodiment 4 resulting modification biological bituminous material D (351.1g) are put in the amalgamator that accommodates 160 ℃ of hot mineral aggregates (5500g) mixed and stirred 60 seconds, obtain biological asphalt D.
Embodiment 11
Embodiment 5 resulting modification biological bituminous material E (160.8g) are put in the amalgamator that accommodates 160 ℃ of hot mineral aggregates (5200g) mixed and stirred 50 seconds, obtain biological asphalt E.
Embodiment 12
Embodiment 6 resulting modification biological bituminous material F (263.2g) are put in the amalgamator that accommodates 180 ℃ of hot mineral aggregates (5000g) mixed and stirred 40 seconds, obtain biological asphalt F.
Performance test
The modification biological bituminous material A ~ F that respectively the foregoing description 1-6 is prepared carries out the test of softening temperature, 25 ℃ of penetration degrees, 15 ℃ of ductilities.And the adhesivity of pitch and building stones tested.Test result is seen table 2.
Biological asphalt A, B, C, the E that embodiment 7, embodiment 9, embodiment 11 are obtained carries out conventional Marshall performance and water stability can be tested, and test result is seen table 3, table 4.
Above TP is according to Department of Transportation's industry standard " highway engineering pitch and asphalt testing regulation (JTJ 052-2000) ".
Adopt U.S. pitch pavement performance PG classification technique standard that embodiment has been carried out the asphalt performance test, test result is seen table 2.
Test result through table 2-table 4 can find out that modification biological pitch of the present invention and biological asphalt can be used for the heavy traffic road construction to be used.
The biological asphalt performance index of table 2
Table 3 Marshall Test volume index
Table 4 water stability test result
Claims (16)
1. a modification biological bituminous material is characterized in that, said modification biological bituminous material contains biological bituminous composition, properties-correcting agent, first compatilizer and stablizer; Said biological bituminous composition comprises biological pitch and is selected from least a in petroleum pitch, rock asphalt, coal-tar pitch, second compatilizer; Said properties-correcting agent is polymer materials or spent high molecular material; Total mass based on described modification biological bituminous material; The content of said biological bituminous composition is 70-90 quality %; The content of said properties-correcting agent is 0-20 quality %, and the content of said first compatilizer is 0-20 quality %, and the content of said stablizer is 0-2 quality %.
2. modification biological bituminous material according to claim 1; In the wherein said biological bituminous composition, based on the total mass of described biological bituminous composition, said biological bituminous content is 10-90 quality %; The content of said petroleum pitch is 0-90 quality %; The content of said rock asphalt is 0-90 quality %, and the content of said coal-tar pitch is 0-90 quality %, and the content of said second compatilizer is 0-30 quality %.
3. modification biological bituminous material according to claim 1, wherein said polymer materials are rubber, resin, thermoplastic elastomer or its combination.
4. modification biological bituminous material according to claim 3, wherein said rubber are selected from one or more of tree elastomer, X 050, styrene-butadiene rubber(SBR), terpolymer EP rubber, paracril, cis-1,4-polybutadiene rubber.
5. modification biological bituminous material according to claim 3, wherein said resin are selected from one or more of Vilaterm, PS, Vestolen PP 7052, ethylene-vinyl acetate copolymer.
6. modification biological bituminous material according to claim 3, wherein said thermoplastic elastomer are selected from one or more of styrene-butadiene-styrene multipolymer (SB S), styrene-isoprene-styrene copolymer-(SIS), styrene-butadiene-styrene copolymer hydrogenating product (SEBS), styrene-butadiene copolymer (SB).
7. modification biological bituminous material according to claim 1, wherein said spent high molecular material is for reclaiming plastics or shoddy.
8. modification biological bituminous material according to claim 7, wherein said shoddy particle diameter is the 10-200 order.
9. modification biological bituminous material according to claim 1, wherein said first compatilizer are rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination.
10. modification biological bituminous material according to claim 1, wherein said second compatilizer are rubber oil, aromatic hydrocarbon oil, pine tar, carbolineum, extraction oil, residual oil, catalytically cracked oil, vacuum distillate or its combination.
11. the preparation method of the described modification biological bituminous material of claim 1-10; It is characterized in that, biological bituminous composition, properties-correcting agent, first compatilizer, stablizer are prepared described modification biological bituminous material through premix, swelling, shearing grinding, growth technology or process combination.
12. the purposes of the described modification biological bituminous material of claim 1-10 on the road of mating formation.
13. a biological asphalt, it comprises the described modification biological bituminous material of claim 1-10, mineral aggregate, and the mass ratio of said modification biological bituminous material and said mineral aggregate is 9-2:91-98.
14. the preparation method of a biological asphalt; It is characterized in that the described modification biological bituminous material of claim 1-10 is heated to 100-200 ℃; Mineral aggregate is heated to 110-230 ℃, obtains said biological asphalt after said modification biological bituminous material and said mineral aggregate are stirred.
15. the preparation method of biological asphalt according to claim 14 is characterized in that, the time that said modification biological bituminous material and said mineral aggregate stir is 8-180 second.
16. the application of biological asphalt in the road of mating formation of claim 13.
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| CN2012102874025A CN102766340A (en) | 2012-08-13 | 2012-08-13 | Modified biological asphalt material, biological asphalt mixture, preparation method thereof and applications |
| PCT/CN2013/075536 WO2014026492A1 (en) | 2012-08-13 | 2013-05-13 | Biological asphalt, biological asphalt composite and preparation method thereof |
| US14/234,598 US9752098B2 (en) | 2012-08-13 | 2013-05-13 | Bio-asphalt, bio-asphalt composition and method for preparing them |
| EP13829699.1A EP2883914B1 (en) | 2012-08-13 | 2013-05-13 | Biological asphalt and preparation method thereof |
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