CN104725882A - High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof - Google Patents
High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN104725882A CN104725882A CN201410536546.9A CN201410536546A CN104725882A CN 104725882 A CN104725882 A CN 104725882A CN 201410536546 A CN201410536546 A CN 201410536546A CN 104725882 A CN104725882 A CN 104725882A
- Authority
- CN
- China
- Prior art keywords
- asphalt
- modulus
- modulus asphalt
- rock
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides high-modulus asphalt based on natural asphalt modification. The high-modulus asphalt is prepared by modifying natural asphalt with SEBS modifying agent, stabilizing agent, compatilizer and matrix asphalt, wherein the weight ratio of the natural asphalt to the matrix asphalt is (40-50):(50-60), the SEBS modifying agent is 1-3 percent of the total mass of the natural asphalt and the matrix asphalt, the stabilizing agent is 0.5-1.0 percent of the total mass of the natural asphalt and the matrix asphalt, and the compatilizer is 0.3-0.5 percent of the total mass of the natural asphalt and the matrix asphalt. The invention further provides a preparation method and application of the high-modulus asphalt. The high-modulus asphalt is simple in preparation process and low in cost, can be used for effectively improving the permanent deformation resistance, shearing resistance, high-temperature track resistance, water damage resistance and fatigue performance of asphalt mixture and achieving double aims of improving high-temperature track resistance and pavement durability of the asphalt pavement, and reducing construction cost in the total life cycle.
Description
Technical field
The invention belongs to pavement construction material field, be specifically related to a kind of high-modulus asphalt based on rock asphalt modification and compound preparation method thereof.
Background technology
At present, in China's road traffic, Heavy Traffic phenomenon is comparatively general, and under Heavy Traffic, bituminous pavement very easily occurs early damage, as high temperature rut, crack, pushes, the disease such as to embrace.Therefore, how effectively improve asphalt mixture material non-deformability and binder and cohesive force between gathering materials, become the key that whether can solve road surface early disease.
High Modulus Asphalt Mixture (High Modulus Asphalt Concrete, be called for short HMAC) originate from France of the sixties in last century, main employing low grade hard pitch, as main binding material, has that high asphalt content, low voidage, stiffness modulus are large, the feature of continuous grading.France to the definition of High Modulus Asphalt Mixture is: dynamic modulus (15 DEG C, 10HZ) >=14000MPa.The High Modulus Asphalt Mixture that France adopts mainly contains two kinds of approach: one is adopt low grade hard pitch, the main pitch adopting penetration degree about 20; Another kind adopts high-modulus additive.France's High Modulus Asphalt Mixture has a set of independently system, it has defined four level design methods based on gyratory compaction test, by carrying out water stability testing, high-temperature rutting test, dynamic modulus test to the asphalt of different levels, fatigue test carries out asphalt mixture design, as can be seen here, French High Modulus Asphalt Mixture design is the method for design based on pavement performance.
High Modulus Asphalt Mixture is higher because of its stiffness modulus, therefore has excellent high temperature anti-rut behavior, in addition, damages in performance, anti-fatigue performance, crack resistance at low-temperature also have good effect in water resistant.As can be seen here, improving the modulus of ground surface material, is the effective technology means solving pavement track problem.The economic benefit of High Modulus Asphalt Mixture is that it can thinning road surface thickness, the lower or Heavy Traffic road of crush values of especially gathering materials in local, Large Longitudinal Slope, summer hot district, crossroad that road speed is lower, canalized traffic time more can embody.
High Modulus Asphalt Mixture is used for surface layer in Permanence Pavement by the U.S., the modulus of asphalt is improved by modifying asphalt, to strengthen the permanent deformation resistance on road surface, reach the effect improving pavement durability, the research that this way also carries out High Modulus Asphalt Mixture for China provides thinking.
China is still in the junior stage to High Modulus Asphalt Mixture research, the high-modulus modified asphalt mixture test section as far back as motorway long abrupt slope, Jiangxi, Guangdong bitumen pavement construction, test-results shows, high-modulus modifying asphalt can significantly improve the anti-rut behavior of compound.Since two thousand five, the unit priorities such as Liaoning Province Traffic Science Institute, South China Science & Engineering University, Chang An University, Southeast China University, Institutes Of Technology Of Changsha, Northeastern University, Chongqing Jiaotong University are studied the theory of the aspects such as pitch high-modulus admixture, High Modulus Asphalt Mixture and developing material, research is thought, High Modulus Asphalt Mixture, except having good high temperature anti-rut behavior, damages in performance, anti-fatigue performance, low-temperature performance in water resistant and also has good effect.
Although the research of China to high-modulus asphalt and compound thereof achieves initial achievements, but the modulus of compound mainly improves for the thinking that High Modulus Asphalt Mixture is studied in China by admixture high-modulus admixture, and high-modulus admixture aspect mainly with the PR. high-modulus additive of France for reference, in market application aspect still based on French PR series high-modulus additive, because import high-modulus additive price is high, volume is high, cause production cost to rise, which results in High Modulus Asphalt Mixture and do not obtain large-scale application in China.In addition to the ununified defining standard of High Modulus Asphalt Mixture and appraisement system, this result also in High Modulus Asphalt Mixture and does not obtain large-scale application in China.
Summary of the invention
Goal of the invention: in order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of high-modulus asphalt based on rock asphalt modification.
Technical scheme: a kind of high-modulus asphalt based on rock asphalt modification provided by the invention, is formed by rock asphalt and SEBS properties-correcting agent, stablizer, compatilizer, matrix pitch modification; The weight ratio of described rock asphalt and matrix pitch is (40 ~ 50): (50-60), SEBS properties-correcting agent is 1% ~ 3% of rock asphalt and matrix pitch total mass, stablizer is 0.5% ~ 1.0% of rock asphalt and matrix pitch total mass, and compatilizer is 0.3% ~ 0.5% of rock asphalt and matrix pitch total mass.
As preferably, described matrix pitch is 70
#pitch, 90
#pitch or 110
#pitch.
Preferred as another kind, described rock asphalt is lake pitch or rock asphalt.
Preferred as another kind, described stablizer is dicumyl peroxide (DCP), cyanacrylate (TAIC) or glycidyl methacrylate (GMA).
Preferred as another kind, described compatilizer is MAH maleic anhydride graft compatilizer.
Present invention also offers the preparation method of the above-mentioned high-modulus asphalt based on rock asphalt modification, comprise the following steps: matrix pitch is heated 1 ~ 2h at 130-150 DEG C, the rock asphalt after fragmentation is heated 0.5h ~ 1h to flow state at 140 DEG C ~ 160 DEG C simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 150-170 DEG C, utilize high-speed shearing machine to shear 1.5 ~ 3h; Product is cultivated 1 ~ 2h and be get final product at 130-150 DEG C.
Present invention also offers a kind of High Modulus Asphalt Mixture, comprise above-mentioned high-modulus asphalt, gather materials and filler; High-modulus asphalt is 4.8% ~ 6.1% of High Modulus Asphalt Mixture quality, and filler is 2% ~ 6% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.
As preferably, described filler is basalt and/or limestone mineral powder.
Present invention also offers the preparation method of above-mentioned High Modulus Asphalt Mixture, comprise the following steps: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Beneficial effect: high-modulus asphalt preparation technology provided by the invention is simple, with low cost, this high-modulus asphalt effectively can improve the permanent deformation resistance of asphalt, anti-shear ability, high temperature anti-rut behavior, anti-water damage property, fatigue property, and low-temperature performance meets the requirement to modified asphalt mixture in " standard specification for construction and acceptance of highway asphalt pavement " (JTG F40-2004), this high-modulus asphalt and compound thereof can be used in road surface, cutting optimal, realize the double goal of bituminous pavement high temperature anti-rut behavior and lifting pavement durability energy, construction cost can be saved in life cycle management.
High-modulus asphalt provided by the invention, to utilize based on rock asphalt, SEBS obtained, effectively can replace traditional high-modulus asphalt additive, and with this high-modulus asphalt for the asphalt of pavement performance excellence prepared by agglutinate.
The present invention abandons the method for traditional employing high-modulus asphalt admixture, adopt based on more cheap, the more convenient rock asphalt be easy to get of price material modified, be aided with SEBS properties-correcting agent and other auxiliary agents such as stablizer, compatilizer prepare high-modulus asphalt, with low cost, technique is simple.
The present invention proposes a kind of High Modulus Asphalt Mixture, adopt special grating, material volume index also has larger difference with current Chinese code of practice, but its technical indicator is still evaluated by the existing evaluation means of China.
From material structure feature, the feature of High Modulus Asphalt Mixture provided by the invention be there is special grading limit (percent of pass of Partial key sieve aperture has exceeded the existing asphalt mixture gradation specification of China), (designed porosity is between 1.5% ~ 4% for low voidage, lower than in China's specification, the porosity of Heavy Traffic dense bitumen compound is required), high bitumen aggregate ratio (bitumen aggregate ratio design between 5.0% ~ 6.5%, the bitumen aggregate ratio higher than traditional dense bitumen compound).High Modulus Asphalt Mixture provided by the invention has high dynamic modulus, static modulus, compression rebound modulu, meet the requirement of French High Modulus Asphalt Mixture, have excellent high temperature anti-rut behavior, anti-water damage, permanent deformation resistance and anti-fatigue performance, low-temperature performance meets the related request to modified asphalt mixture in China's specification simultaneously simultaneously.High Modulus Asphalt Mixture provided by the invention is applied in road, cutting optimal, effectively can solve the pavement diseases such as asphalt pavement rut infringement is serious, anti-fatigue performance is poor.
Due to the applied layer position of this kind of High Modulus Asphalt Mixture be mainly in road surface, cutting optimal, therefore the present invention to propose based on the grading limit of High Modulus Asphalt Mixture HMAC-20 and HMAC-25 of rock asphalt modification as shown in table 1, table 2:
The grading limit of table 1 High Modulus Asphalt Mixture HMAC-20
The grading limit of table 2 High Modulus Asphalt Mixture HMAC-25
Obtained high-modulus asphalt and the fundamental property index of compound thereof are in table 3, table 4:
The fundamental property index of table 3 high-modulus asphalt
| Performance index | High-modulus asphalt |
| 25 DEG C of density, g/cm 3 | 1.15～1.25 |
| Softening temperature, DEG C | ≥60 |
| 25 DEG C of penetration degrees, 0.1mm | 10～35 |
| 15 DEG C of ductilities, cm | ≥10 |
| Flash-point, DEG C | ＞230 |
| Brittle point, DEG C | ≤-15 |
The fundamental property index of table 4 High Modulus Asphalt Mixture
| Performance index | High Modulus Asphalt Mixture |
| Marshall stability, kN | ≥12 |
| 60 DEG C of dynamic stabilities, secondary/mm | ≥5000 |
| Freeze-thaw split strength ratio, % | ≥80 |
| 15 DEG C, 10Hz dynamic modulus, MPa | ≥14000 |
| 45 DEG C, 10Hz dynamic modulus, MPa | ≥2000 |
| Low temperature flexural-tensile strain, μ ε | ≥2500 |
| 20 DEG C of compression rebound modulus, MPa | ≥2000 |
The present invention take high-modulus asphalt as the feature that the asphalt of agglutinate has that dynamic modulus is high, non-deformability, anti-rut behavior, anti-water damage, fatigue property are good.According to the preferred embodiment of the present invention High Modulus Asphalt Mixture 15 DEG C, dynamic modulus under 10Hz reaches 16000MPa ~ 18000MPa, the standard of more French High Modulus Asphalt Mixture improves about 14% ~ 29%; The requirement of above-mentioned High Modulus Asphalt Mixture is all met in high temperature performance anti-water damage property.
High Modulus Asphalt Mixture in the present invention is applicable in road, cutting optimal, can improve road surface one-piece construction rutting resistance, prolonging service life of pavement.
Embodiment
Method described in following embodiment, if no special instructions, is ordinary method; Described material if no special instructions, all can obtain from commercial channels.
The compatilizer that following examples use is MAH maleic anhydride graft compatilizer; Use SEBS properties-correcting agent to be take polystyrene as end segment, the ethylene-butene copolymer obtained with polyhutadiene hydrogenation is the linear three embedding multipolymers of middle spring block, commercially available.
The preparation of embodiment 1 high-modulus asphalt
Matrix pitch is heated 1.5h at 140 DEG C, the rock asphalt after fragmentation is heated 0.5h to flow state at 150 DEG C simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 160 DEG C, utilize high-speed shearing machine to shear 2h; Product is cultivated 1.5h and be get final product at 140 DEG C.
Wherein, matrix pitch adopts and heavily hands over 70# pitch;
Rock asphalt adopts Trinidad Lake Asphalt;
In high-modulus asphalt, the mass ratio of lake pitch and matrix pitch is 45:55;
SEBS content of modifier accounts for 1.5% of high-modulus asphalt quality, and dicumyl peroxide (DCP) accounts for 0.8% of high-modulus asphalt quality, and compatilizer accounts for 0.4% of high-modulus asphalt quality;
The preparation of embodiment 2 high-modulus asphalt
Matrix pitch is heated 2h at 130 DEG C, the rock asphalt after fragmentation is heated 1h to flow state at 140 DEG C simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 150 DEG C, utilize high-speed shearing machine to shear 3h; Product is cultivated 2h and be get final product at 130 DEG C.
Wherein, matrix pitch adopts and heavily hands over 90# pitch;
Rock asphalt adopts Trinidad Lake Asphalt;
In high-modulus asphalt, the mass ratio of lake pitch and matrix pitch is 50:50;
SEBS content of modifier accounts for 2.0% of high-modulus asphalt quality, and cyanacrylate (TAIC) accounts for 1.0% of high-modulus asphalt quality, and compatilizer accounts for 0.5% of high-modulus asphalt quality;
The preparation of embodiment 3 high-modulus asphalt
Matrix pitch is heated 1h at 150 DEG C, the rock asphalt after fragmentation is heated 0.5h to flow state at 160 DEG C simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 170 DEG C, utilize high-speed shearing machine to shear 1.5h; Product is cultivated 1h and be get final product at 150 DEG C.
Wherein, matrix pitch adopts and heavily hands over 70# pitch;
Rock asphalt adopts Trinidad Lake Asphalt;
In high-modulus asphalt, the mass ratio of lake pitch and matrix pitch is 40:60;
SEBS content of modifier accounts for 1.0% of high-modulus asphalt quality, and glycidyl methacrylate (GMA) accounts for 1.0% of high-modulus asphalt quality, and compatilizer accounts for 0.3% of high-modulus asphalt quality;
The preparation of embodiment 4 high-modulus asphalt
Matrix pitch is heated 1.5h at 140 DEG C, the rock asphalt after fragmentation is heated 1h to flow state at 140 times simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 160 DEG C, utilize high-speed shearing machine to shear 3h; Product is cultivated 2h and be get final product at 130 DEG C.
Wherein, matrix pitch adopts and heavily hands over 90# pitch;
Rock asphalt adopts Trinidad Lake Asphalt;
In high-modulus asphalt, the mass ratio of lake pitch and matrix pitch is 50:50;
SEBS content of modifier accounts for 2.0% of high-modulus asphalt quality, and glycidyl methacrylate (GMA) accounts for 0.5% of high-modulus asphalt quality, and compatilizer accounts for 0.5% of high-modulus asphalt quality;
Embodiment 5
The preparation of High Modulus Asphalt Mixture: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Wherein, high-modulus asphalt is the high-modulus asphalt of embodiment 1, gathers materials for the combination of basalt, limestone, meets in China's specification technical requirements that is thick, fine aggregate; Filler is limestone mineral powder.
High-modulus asphalt is 5.2% of High Modulus Asphalt Mixture quality, and filler is 4% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.That is, high-modulus asphalt quality is 5.5:100 with the ratio gathered materials with the total mass of filler, and namely compound bitumen aggregate ratio is 5.5%.
Design HMAC-20 compound, the design grating of High Modulus Asphalt Mixture is as table 5:
The design grating of table 5 High Modulus Asphalt Mixture HMAC-20
The pavement performance of obtained High Modulus Asphalt Mixture is as table 6.
Table 6 is based on the pavement performance of the High Modulus Asphalt Mixture of rock asphalt modification
| Experimental project | Experimental result | Perform specification |
| Marshall stability, kN | 15.58 | T0709-2011 |
| Immersion residual stability, % | 92.1 | T0709-2011 |
| Freeze-thaw split retained strength ratio, % | 83.5 | T0729-2000 |
| Dynamic stability, secondary/mm | 6469 | T0719-2011 |
| 15 DEG C, 10Hz, dynamic modulus, MPa | 16284 | T0738-2011 |
| Maximum low temperature flexural-tensile strain, μ ε | 2862 | T0715-2011 |
| 15 DEG C, 0.2 stress ratio, times of fatigue, secondary | 64929 | T0739-2011 |
Embodiment 6
The preparation of High Modulus Asphalt Mixture: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Wherein, high-modulus asphalt is the high-modulus asphalt of embodiment 2, gathers materials for the combination of basalt, limestone, meets in China's specification technical requirements that is thick, fine aggregate; Filler is limestone mineral powder.
High-modulus asphalt is 5.7% of High Modulus Asphalt Mixture quality, and filler is 2% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.That is, high-modulus asphalt quality and mineral aggregate mass ratio are 6.0:100, and namely compound bitumen aggregate ratio is 6.0%.
Design HMAC-20 compound, the design grating of High Modulus Asphalt Mixture is as table 7:
The design grating of table 7 High Modulus Asphalt Mixture HMAC-20
The pavement performance of obtained High Modulus Asphalt Mixture is as table 8.
Table 8 is based on the pavement performance of the High Modulus Asphalt Mixture of rock asphalt modification
| Experimental project | Experimental result | Perform specification |
| Marshall stability, kN | 18.42 | T0709-2011 |
| Immersion residual stability, % | 91.7 | T0709-2011 |
| Freeze-thaw split retained strength ratio, % | 84.4 | T0729-2000 |
| Dynamic stability, secondary/mm | 8680 | T0719-2011 |
| 15 DEG C, 10Hz, dynamic modulus, MPa | 17844 | T0738-2011 |
| Maximum low temperature flexural-tensile strain, μ ε | 2751 | T0715-2011 |
| 15 DEG C, 0.2 stress ratio, times of fatigue, secondary | 84276 | T0739-2011 |
Embodiment 7
The preparation of High Modulus Asphalt Mixture: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Wherein, high-modulus asphalt is the high-modulus asphalt of embodiment 3, gathers materials for the combination of basalt, limestone, meets in China's specification technical requirements that is thick, fine aggregate; Filler is basalt breeze.
High-modulus asphalt is 4.8% of High Modulus Asphalt Mixture quality, and filler is 6% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.That is, high-modulus asphalt quality and mineral aggregate mass ratio are 5.0:100, and namely compound bitumen aggregate ratio is 5.0%.
Design HMAC-25 compound, the design grating of High Modulus Asphalt Mixture is as table 9:
The design grating of table 9 High Modulus Asphalt Mixture HMAC-25
The pavement performance of obtained High Modulus Asphalt Mixture is as table 10.
Table 10 is based on the pavement performance of the High Modulus Asphalt Mixture of rock asphalt modification
| Experimental project | Experimental result | Perform specification |
| Marshall stability, kN | 16.42 | T0709-2011 |
| Immersion residual stability, % | 90.4 | T0709-2011 |
| Freeze-thaw split retained strength ratio, % | 84.5 | T0729-2000 |
| Dynamic stability, secondary/mm | 7285 | T0719-2011 |
| 15 DEG C, 10Hz, dynamic modulus, MPa | 16081 | T0738-2011 |
| Maximum low temperature flexural-tensile strain, μ ε | 2979 | T0715-2011 |
| 15 DEG C, 0.2 stress ratio, times of fatigue, secondary | 68154 | T0739-2011 |
Embodiment 8
The preparation of High Modulus Asphalt Mixture: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Wherein, high-modulus asphalt is the high-modulus asphalt of embodiment 4, gathers materials for the combination of basalt, limestone, meets in China's specification technical requirements that is thick, fine aggregate; Filler is basalt breeze.
High-modulus asphalt is 6.1% of High Modulus Asphalt Mixture quality, and filler is 3% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.That is, high-modulus asphalt quality and mineral aggregate mass ratio are 6.5:100, and namely compound bitumen aggregate ratio is 6.5%.
Design HMAC-25 compound, the design grating of High Modulus Asphalt Mixture is as table 11:
The design grating of table 11 High Modulus Asphalt Mixture HMAC-25
The pavement performance of obtained High Modulus Asphalt Mixture is as table 12.
Table 12 is based on the pavement performance of the High Modulus Asphalt Mixture of rock asphalt modification
| Experimental project | Experimental result | Perform specification |
| Marshall stability, kN | 21.24 | T0709-2011 |
| Immersion residual stability, % | 93.4 | T0709-2011 |
| Freeze-thaw split retained strength ratio, % | 85.7 | T0729-2000 |
| Dynamic stability, secondary/mm | 9352 | T0719-2011 |
| 15 DEG C, 10Hz, dynamic modulus, MPa | 18000 | T0738-2011 |
| Maximum low temperature flexural-tensile strain, μ ε | 2927 | T0715-2011 |
| 15 DEG C, 0.2 stress ratio, times of fatigue, secondary | 84547 | T0739-2011 |
As can be seen from the above embodiments, rock asphalt modifying asphalt is utilized to meet the requirement to high-modulus in French specification as High Modulus Asphalt Mixture prepared by high-modulus asphalt binding material.The High Modulus Asphalt Mixture of preparation meets code requirement in low-temperature performance and water stability, and this is the feature of High Modulus Asphalt Mixture material composition aspect, and this is the difference of High Modulus Asphalt Mixture and traditional dense-graded mix.Due to the feature that designed High Modulus Asphalt Mixture grating is thin, bitumen aggregate ratio is high, voidage is low, this material is made to have excellent high-temperature behavior, anti-fatigue performance, in being used in, cutting optimal, thus the object solving bituminous pavement high temperature Rut resistance, prolonging service life of pavement can be played.
Although the present invention has elaborated and quoted example as proof, for those skilled in the art, obviously can modify to such scheme, change but revise, mobility scale all should within claim scope.
Claims (8)
1. based on a high-modulus asphalt for rock asphalt modification, it is characterized in that: formed by rock asphalt and SEBS properties-correcting agent, stablizer, compatilizer, matrix pitch modification; The weight ratio of described rock asphalt and matrix pitch is (40 ~ 50): (50-60), SEBS properties-correcting agent is 1% ~ 3% of rock asphalt and matrix pitch total mass, stablizer is 0.5% ~ 1.0% of rock asphalt and matrix pitch total mass, and compatilizer is 0.3% ~ 0.5% of rock asphalt and matrix pitch total mass.
2. a kind of high-modulus asphalt based on rock asphalt modification according to claim 1, is characterized in that: described matrix pitch is 70
#pitch, 90
#pitch or 110
#pitch.
3. a kind of high-modulus asphalt based on rock asphalt modification according to claim 1, is characterized in that: described rock asphalt is lake pitch or rock asphalt.
4. a kind of high-modulus asphalt based on rock asphalt modification according to claim 1, is characterized in that: described stablizer is dicumyl peroxide (DCP), cyanacrylate (TAIC) or glycidyl methacrylate (GMA).
5. a kind of high-modulus asphalt based on rock asphalt modification according to claim 1, is characterized in that: described compatilizer is MAH maleic anhydride graft compatilizer.
6. the preparation method of a kind of high-modulus asphalt based on rock asphalt modification described in any one of claim 1 to 6, it is characterized in that: comprise the following steps: matrix pitch is heated 1 ~ 2h at 130-150 DEG C, the rock asphalt after fragmentation is heated 0.5h ~ 1h to flow state at 140 DEG C ~ 160 DEG C simultaneously; The rock asphalt of flow state is slowly poured in the matrix pitch after heating, pour SEBS properties-correcting agent, stablizer and compatilizer simultaneously into, at 150-170 DEG C, utilize high-speed shearing machine to shear 1.5 ~ 3h; Product is cultivated 1 ~ 2h and be get final product at 130-150 DEG C.
7. a High Modulus Asphalt Mixture, is characterized in that: comprise high-modulus asphalt according to claim 1, gather materials and filler; High-modulus asphalt is 4.8% ~ 6.1% of High Modulus Asphalt Mixture quality, and filler is 2% ~ 6% of High Modulus Asphalt Mixture quality, and surplus is for gathering materials.
8. the preparation method of a kind of High Modulus Asphalt Mixture according to claim 8, is characterized in that: comprise the following steps: will gather materials heating 3 ~ 5h at 190 ~ 210 DEG C; Add breeze again, then become the high-modulus asphalt of flowable state after being incorporated in 140 DEG C ~ 160 DEG C heating, stir 100 ~ 180s at 175 ~ 185 DEG C and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536546.9A CN104725882A (en) | 2014-10-11 | 2014-10-11 | High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536546.9A CN104725882A (en) | 2014-10-11 | 2014-10-11 | High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104725882A true CN104725882A (en) | 2015-06-24 |
Family
ID=53450330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410536546.9A Pending CN104725882A (en) | 2014-10-11 | 2014-10-11 | High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104725882A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062097A (en) * | 2015-07-28 | 2015-11-18 | 安徽雄亚塑胶科技有限公司 | High strength and high toughness TPE modified asphalt and preparation method thereof |
| CN106065558A (en) * | 2016-06-07 | 2016-11-02 | 同济大学 | Processing technology is mixed and stirred in a kind of BUTON rock asphalt modified asphalt mixture heating |
| CN106189291A (en) * | 2016-07-15 | 2016-12-07 | 黑龙江省中信路桥材料有限公司 | Iran's natural rock asphalt modified pitch and preparation method thereof |
| CN107118578A (en) * | 2017-05-25 | 2017-09-01 | 西咸新区众力沥青有限公司 | A kind of storable high-modulus bitumen cementitious matter is prepared and application process |
| CN109320973A (en) * | 2017-07-31 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of bituminous cements, asphalt and preparation method thereof |
| CN109534724A (en) * | 2018-12-06 | 2019-03-29 | 江苏中路工程技术研究院有限公司 | A kind of High Modulus Asphalt Mixture and preparation method thereof modified based on high ash content rock asphalt |
| CN110317621A (en) * | 2019-06-25 | 2019-10-11 | 中国科学院山西煤炭化学研究所 | A kind of collaboration of multikey is controllable promote in the stabilized method of soft pitch |
| CN111073319A (en) * | 2019-12-29 | 2020-04-28 | 北京布敦科技发展有限公司 | Composite natural rock asphalt modifier, preparation method and application |
| CN113292862A (en) * | 2021-05-28 | 2021-08-24 | 重庆市智翔铺道技术工程有限公司 | Asphalt thermal regenerant and preparation method thereof |
| CN113772998A (en) * | 2021-08-25 | 2021-12-10 | 新疆路桥建设集团有限公司 | High-modulus asphalt mixture and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524300A1 (en) * | 2003-10-15 | 2005-04-20 | Georg Börner Chemisches Werk für Dach- und Bautenschutz GmbH & Co. KG | Polymer-bitumen compositions comprising animal and/or vegetable oils or fats as plasticizers |
| CN102417735A (en) * | 2011-09-08 | 2012-04-18 | 江阴泰富沥青有限公司 | Production processes of rock asphalt modified asphalt and mixture |
| CN102532923A (en) * | 2011-12-30 | 2012-07-04 | 谢术英 | Granular modified asphalt and preparation method thereof |
| CN103613940A (en) * | 2013-11-15 | 2014-03-05 | 同济大学 | Rock asphalt composite modifier as well as preparation method and application thereof |
| CN103834184A (en) * | 2014-02-25 | 2014-06-04 | 山西省交通科学研究院 | High-modulus asphalt and preparation method thereof |
-
2014
- 2014-10-11 CN CN201410536546.9A patent/CN104725882A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524300A1 (en) * | 2003-10-15 | 2005-04-20 | Georg Börner Chemisches Werk für Dach- und Bautenschutz GmbH & Co. KG | Polymer-bitumen compositions comprising animal and/or vegetable oils or fats as plasticizers |
| CN102417735A (en) * | 2011-09-08 | 2012-04-18 | 江阴泰富沥青有限公司 | Production processes of rock asphalt modified asphalt and mixture |
| CN102532923A (en) * | 2011-12-30 | 2012-07-04 | 谢术英 | Granular modified asphalt and preparation method thereof |
| CN103613940A (en) * | 2013-11-15 | 2014-03-05 | 同济大学 | Rock asphalt composite modifier as well as preparation method and application thereof |
| CN103834184A (en) * | 2014-02-25 | 2014-06-04 | 山西省交通科学研究院 | High-modulus asphalt and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐坚等: "《高分子材料与工程》", 31 January 2008, 科学出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062097A (en) * | 2015-07-28 | 2015-11-18 | 安徽雄亚塑胶科技有限公司 | High strength and high toughness TPE modified asphalt and preparation method thereof |
| CN106065558A (en) * | 2016-06-07 | 2016-11-02 | 同济大学 | Processing technology is mixed and stirred in a kind of BUTON rock asphalt modified asphalt mixture heating |
| CN106189291A (en) * | 2016-07-15 | 2016-12-07 | 黑龙江省中信路桥材料有限公司 | Iran's natural rock asphalt modified pitch and preparation method thereof |
| CN106189291B (en) * | 2016-07-15 | 2018-10-23 | 黑龙江省中信路桥材料有限公司 | Iranian natural rock asphalt modified pitch and preparation method thereof |
| CN107118578A (en) * | 2017-05-25 | 2017-09-01 | 西咸新区众力沥青有限公司 | A kind of storable high-modulus bitumen cementitious matter is prepared and application process |
| CN109320973B (en) * | 2017-07-31 | 2021-06-01 | 中国石油天然气股份有限公司 | Asphalt cement, asphalt mixture and preparation method thereof |
| CN109320973A (en) * | 2017-07-31 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of bituminous cements, asphalt and preparation method thereof |
| CN109534724A (en) * | 2018-12-06 | 2019-03-29 | 江苏中路工程技术研究院有限公司 | A kind of High Modulus Asphalt Mixture and preparation method thereof modified based on high ash content rock asphalt |
| CN110317621A (en) * | 2019-06-25 | 2019-10-11 | 中国科学院山西煤炭化学研究所 | A kind of collaboration of multikey is controllable promote in the stabilized method of soft pitch |
| CN111073319A (en) * | 2019-12-29 | 2020-04-28 | 北京布敦科技发展有限公司 | Composite natural rock asphalt modifier, preparation method and application |
| CN111073319B (en) * | 2019-12-29 | 2021-10-01 | 北京布敦科技发展有限公司 | Composite natural rock asphalt modifier, preparation method and application |
| CN113292862A (en) * | 2021-05-28 | 2021-08-24 | 重庆市智翔铺道技术工程有限公司 | Asphalt thermal regenerant and preparation method thereof |
| CN113772998A (en) * | 2021-08-25 | 2021-12-10 | 新疆路桥建设集团有限公司 | High-modulus asphalt mixture and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104725882A (en) | High-modulus asphalt based on natural asphalt modification, as well as preparation method and application thereof | |
| Kim et al. | Fatigue performance evaluation of SBS modified mastic asphalt mixtures | |
| CN102993755B (en) | The preparation method of modifying asphalt, this modifying asphalt and bituminous concrete | |
| CN106007491B (en) | Normal-temperature regeneration asphalt and preparation method thereof | |
| CN103113044B (en) | High-modulus bituminous mixture admixed with waste material, preparation method and method for preparing mixture specimen | |
| CN105417987B (en) | One kind mixing coal gas slugging high-modulus asphalt concrete material and preparation method thereof | |
| CN109534724A (en) | A kind of High Modulus Asphalt Mixture and preparation method thereof modified based on high ash content rock asphalt | |
| CN104372727B (en) | The mixing proportion design method of normal temperature modified asphalt | |
| CN101624273A (en) | Asphalt mixture taking regenerative micro powder of waste concrete as filler | |
| CN102040360B (en) | Tailing sand brick with high weather resistance and preparation method thereof | |
| CN109650781A (en) | A kind of high frictional resistance thin overlay asphalt of middle low temperature warm mix and preparation method thereof | |
| CN108947328B (en) | Steel slag permeable asphalt mixture based on waste rubber powder modified high-viscosity asphalt | |
| CN103588424A (en) | Durable high-modulus asphalt mixture based on hard asphalt particles | |
| CN112430008A (en) | Steel slag stress absorbing layer material and preparation method thereof | |
| CN111170678A (en) | Pouring type concrete with polyurethane as binder and preparation method thereof | |
| CN104692728A (en) | Slurry material for semi-flexible road surface | |
| CN106554170A (en) | A kind of modified pitch gap gradation asphalt | |
| CN104944843A (en) | High-performance asphalt mixture for steel bridge floor pavement and preparation method thereof | |
| Haritonovs et al. | Performance of asphalt concrete with dolomite sand waste and bof steel slag aggregate | |
| CN107759139A (en) | Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof | |
| CN102040354B (en) | Environment-friendly high-elastic asphalt mixture used as stress absorbing layer | |
| CN106351101B (en) | A kind of Heavy Traffic pavement of road paving structure based on particulate formula high-performance bituminous concrete | |
| Gowtham et al. | Effect of steel slag on Marshall properties of plain and modified bituminous concrete grade 1 mix | |
| CN115124279A (en) | Preparation method of 100% RAP warm-mixed recycled asphalt mixture | |
| Lu et al. | Glasphalt Mixtures' Performance Research and Analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
|
| RJ01 | Rejection of invention patent application after publication |