CN114806201A - Green high-performance composite SBS (styrene butadiene styrene) modified asphalt, SBS modified emulsified asphalt material and preparation method - Google Patents
Green high-performance composite SBS (styrene butadiene styrene) modified asphalt, SBS modified emulsified asphalt material and preparation method Download PDFInfo
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- CN114806201A CN114806201A CN202210643482.7A CN202210643482A CN114806201A CN 114806201 A CN114806201 A CN 114806201A CN 202210643482 A CN202210643482 A CN 202210643482A CN 114806201 A CN114806201 A CN 114806201A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 173
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 title 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 title 3
- 239000003607 modifier Substances 0.000 claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 238000010008 shearing Methods 0.000 claims abstract description 28
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 20
- 239000003208 petroleum Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000010692 aromatic oil Substances 0.000 claims description 25
- 239000008149 soap solution Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000003921 oil Substances 0.000 claims description 16
- 239000000084 colloidal system Substances 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- 125000002091 cationic group Chemical group 0.000 claims description 8
- 239000003623 enhancer Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 4
- 230000001804 emulsifying effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 37
- 238000005259 measurement Methods 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 20
- 239000004575 stone Substances 0.000 description 18
- 239000004576 sand Substances 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 8
- 239000004606 Fillers/Extenders Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
Abstract
The invention discloses green high-performance composite SBS modified asphalt, an SBS modified emulsified asphalt material and a preparation method thereof. The green high-performance composite structure material comprises 90-97% of petroleum asphalt, 1-4% of compatilizer, 1-4% of SBS modifier and 1-2% of additive. The preparation method comprises the steps of adding petroleum asphalt into a reactor, heating to 155-165 ℃, adding a compatilizer for shearing, wherein the shearing speed is 4500-5500r/min, shearing is 5-10min, and uniformly mixing to obtain a product A; adding SBS modifier into the product A, and shearing at 155-165 deg.c for 0.5-1 hr to obtain product B; adding the additive into the product B, stirring at the temperature of 155-165 ℃ at the stirring speed of 140-160r/min, stirring for 1-2h, and uniformly mixing. The high-performance composite structural material has good high-temperature anti-rutting performance and low-temperature anti-cracking performance, effectively solves the problems existing in the road surface, and prolongs the service life of the road surface. And the modified emulsified asphalt has good emulsifying performance, can be emulsified by an emulsifying agent, and has good performance.
Description
Technical Field
The invention relates to the technical field of SBS modified asphalt, in particular to high-performance composite SBS modified asphalt, a high-performance SBS modified emulsified asphalt material and a preparation method thereof.
Background
The SBS modified emulsified asphalt perfectly combines the material technology and the construction technology, and perfectly embodies and guarantees the material performance and the engineering quality to the maximum extent. The product has the capability of improving the flow resistance of the pavement, namely the rutting resistance at high temperature; the flexibility and elasticity, namely the capability of resisting cracking at low temperature are improved; improving the abrasion resistance and prolonging the service life.
The SBS modified emulsified asphalt can be constructed at normal temperature, and has the outstanding characteristics of simple and convenient construction, energy conservation, environmental protection, excellent performance and the like. But the SBS modified emulsified asphalt is rarely applied to a micro-surfacing process in actual use, and the main reason is to ensure the low-temperature ductility of the modified asphalt on the premise of ensuring the high softening point of the modified asphalt, and ensure the anti-rutting capability of a product at high temperature and the anti-cracking capability at low temperature; improving the abrasion resistance and prolonging the service life.
Disclosure of Invention
The invention aims to provide a preparation method of a high-performance composite SBS modified asphalt and an SBS modified emulsified asphalt material with super-strong anti-rutting and anti-cracking capabilities, aiming at the technical defects in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
the high-performance composite SBS modified asphalt comprises the following components in percentage by mass:
90-97% of petroleum asphalt, 1-4% of compatilizer and 1-4% of SBS modifier. The additive is 1-2%.
Preferably, the compatilizer is aromatic oil and naphthenic oil, the solubility of the SBS modifier and the elasticity of the SBS modified asphalt can be improved, and the ratio of the aromatic oil to the naphthenic oil is more preferably 1: 1.
Preferably, the modifier is two of a linear SBS modifier and a star SBS modifier of a styrene-butadiene block copolymer, and more preferably, the ratio of the linear SBS modifier to the star SBS modifier is 1: 1.
The petroleum asphalt is petroleum asphalt 70 # Asphalt, petroleum asphalt 90 # One or two kinds of asphalt.
The additive is one or more of an anti-stripping agent, a ductility enhancer, an anti-rutting agent and a stabilizer.
The invention also provides a preparation method of the high-performance composite SBS modified asphalt material, which comprises the following steps:
1) adding petroleum asphalt into a reactor, heating to 155-165 ℃, adding a compatilizer for shearing, wherein the shearing speed is 4500-5500r/min, shearing is 5-10min, and uniformly mixing to obtain a product A;
2) adding SBS modifier into the product A, shearing at 155-165 deg.c for 0.5-1 hr to obtain product B;
3) adding the additive into the product B, stirring at the temperature of 155-165 ℃ at the stirring speed of 140-160r/min, stirring for 1-2h, and uniformly mixing.
The invention also provides a preparation method of the high-performance SBS modified emulsified asphalt material, which comprises the following steps:
weighing a certain amount of cationic emulsifier, adding the cationic emulsifier into water with the temperature of 60-80 ℃, stirring to dissolve the cationic emulsifier, adding HCl, adjusting the pH value to 2, adding water to obtain soap solution, taking a certain amount of modified asphalt, heating to 160-180 ℃, and preparing the soap solution and the modified asphalt into cationic modified emulsified asphalt through a colloid mill;
wherein the mass ratio of the water at the temperature of 60-80 ℃ to the emulsifier is 15: 1, the mass ratio of the soap liquid to the emulsifier is 16: 1, the mass ratio of the modified asphalt to the soap solution is 3: 2.
the modified asphalt adopts the high-performance composite SBS modified asphalt, and the SBS modified asphalt with the addition proportion can improve the softening point of the modified asphalt and can also improve the low-temperature ductility of the modified asphalt. Rut resistance at high temperature and crack resistance at low temperature; improving the abrasion resistance and prolonging the service life.
The high-performance composite SBS modified asphalt provided by the invention has the following characteristics:
1. there are two different structures of compatibilizers: the aromatic oil and the naphthenic oil are compounded according to a certain proportion, so that the affinity of the aromatic oil to more SBS modifiers is improved, the aromatic oil can improve the oil content in the modified asphalt, the solubility of the modifiers in the modified asphalt is increased, the aromatic oil can reduce the influence of the increased oil content on the increase of the penetration degree of the asphalt and the decrease of the emulsification point, but the added SBS modifiers cannot be completely dissolved only by using the aromatic oil, so that the naphthenic oil with a certain proportion is introduced, the added SBS modifiers can be completely dissolved due to good solubility, the utilization rate of the SBS modifiers is improved, and the ductility, the elasticity and other performances of the modified asphalt are improved.
2. There are two different types of modifiers: the linear SBS modifier and the star-shaped SBS modifier of the styrene-butadiene block copolymer are two, the average relative molecular mass of the linear SBS modifier is 8-12 ten thousand, the tensile strength and the elasticity can be improved, but the hardness is poor, the average relative molecular mass of the star-shaped SBS modifier is 14-30 ten thousand, the average relative molecular mass is larger, the molecular weight is larger, the effect of improving the hardness of the modified asphalt is obvious, but the tensile strength is poor, the two SBS modifiers are compounded according to a certain proportion, the ductility of the modified asphalt can be improved, the penetration degree and the softening point of the modified asphalt can be improved, and the rutting resistance at high temperature can be improved.
Detailed Description
Example 1
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 20g aromatic oil 20# of Jiangsu Shangxi Shuxin Industrial lubricating oil Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed is 5000r/min and the shearing time is 5-10min to obtain a product A, 20g linear SBS modifier of Lichengrong 3501 in Heizhou is added into the product A and the product A is sheared for 0.5-1h at the temperature of 160 ℃ to obtain a product B, 15g ductility enhancer GX-1 of Zhenjiangdao material science and technology Limited is added into the product B and the product B is stirred at the temperature of 160 ℃, the stirring speed is 150r/min and the product B is stirred for 1-2h and is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in the table 1
TABLE 1 determination of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 2
TABLE 2 Performance test results for high Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 3 shows
TABLE 3 measurement results of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 555.78 | 1.03 | 423.84 |
| 6.3％ | 453.29 | 2.3 | 443.07 |
| 6.5％ | 425.67 | 2.6 | 514.03 |
Example 2
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 15g aromatic oil 20#5g of Shanghai Sanlian practical oil company Limited, 20#5g of aromatic oil of Jiangsu build-Xin Industrial lubricating oil company Limited, are uniformly mixed under the conditions of 160 ℃, the shearing speed is 5000r/min and the shearing time is 5-10min to obtain a product A, 20g of Huizhou Liangrong 3501 linear SBS modifier is added into the product A to be sheared for 0.5-1h at 160 ℃ to obtain a product B, 15g of ductility extender GX-1 of Zhenjiang material science and technology company Limited is added into the product B to be stirred at 160 ℃, the stirring speed is 150r/min and the stirring time is 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 4
TABLE 4 determination of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 5
TABLE 5 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the performance is shown in Table 6
TABLE 6 measurement results of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 550.48 | 1.13 | 425.81 |
| 6.3％ | 455.29 | 2.2 | 443.09 |
| 6.5％ | 435.67 | 2.4 | 518.03 |
Example 3
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 10g of aromatic oil 20#10g of Shanghai Sanlian practical oil company Limited, 20#10g of aromatic oil of Jiangsu build-Xin Industrial lubricating oil company Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed is 5000r/min and the shearing time is 5-10min to obtain a product A, 20g of Huizhou Liangrong 3501 linear SBS modifier is added into the product A to be sheared for 0.5-1h at 160 ℃ to obtain a product B, 15g of ductility extender GX-1 of Zhenjiang material science and technology company Limited is added into the product B to be stirred at 160 ℃, the stirring speed is 150r/min and the stirring time is 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 7
TABLE 7 determination of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 8
TABLE 8 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 9 shows
TABLE 9 measurement results of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Norm ofStandard of merit | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 450.48 | 0.98 | 425.81 |
| 6.3％ | 445.38 | 2.0 | 473.09 |
| 6.5％ | 435.98 | 2.6 | 538.03 |
Example 4
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 5g aromatic oil 20#15g of Shanghai Sanlian practical oil company, KN4010 of Jiangsu build-Xin Industrial lubricating oil company, Inc. are uniformly mixed under the conditions of 160 ℃, the shearing speed of 5000r/min and 5-10min of shearing to obtain a product A, 20g of Huizhou Liangrong 3501 linear SBS modifier is added into the product A, the product B is obtained by shearing at 160 ℃ for 0.5-1h, 15g of ductility extender GX-1 of Zhenjiang material science and technology company, Inc. is added into the product B, the stirring speed is 150r/min, the stirring is carried out for 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 10
TABLE 10 measurement results of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 11
TABLE 11 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 12 shows
TABLE 12 measurement of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Width of load wheelDegree of deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 446.48 | 1.6 | 475.45 |
| 6.3％ | 435.76 | 2.3 | 493.12 |
| 6.5％ | 425.83 | 2.9 | 548.21 |
Example 5
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 20g of naphthenic oil KN4010 of Shanghai Sanlian industries, Inc. are uniformly mixed under the conditions of 160 ℃, the shearing speed of 5000r/min and 5-10min of shearing to obtain a product A, 20g of Huizhou Lichangrong 3501 linear SBS modifier is added into the product A to be sheared for 0.5-1h at 160 ℃ to obtain a product B, 15g of ductility enhancer GX-1 of Zhenjiangdao materials science and technology, Inc. is added into the product B to be stirred at 160 ℃, the stirring speed is 150r/min, the stirring is carried out for 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 13
TABLE 13 determination of Properties of high Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 14
TABLE 14 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 15 shows
TABLE 15 measurement results of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheelSticky sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 436.47 | 1.9 | 505.49 |
| 6.3％ | 425.98 | 2.4 | 533.67 |
| 6.5％ | 422.77 | 3.2 | 568.22 |
According to the above examples, with the decrease of the aromatic oil 20# of Jiangsu Shangxi Xin Industrial lubricating oil Co., Ltd, the increase of the naphthenic oil KN4010 of Shanghai Sanlian Industrial lubricating oil Co., Ltd, the increase and the decrease of the softening point of the modified asphalt, the increase and the decrease of the ductility of the modified asphalt, and the penetration degree gradually increases, the performance of the modified asphalt of example 3 is optimal, and the test values of the emulsified asphalt and the mixture are optimal in the later period, so that the dosage of the aromatic oil 20# of 10g Jiangsu Xin Industrial lubricating oil Co., Ltd, and the dosage of the naphthenic oil KN4010 of 10g Shanghai Sanlian Industrial lubricating oil Co., Ltd are unchanged, and the Xinzhou Li ChangRong 161B star SBS modifier is introduced to verify the change condition of the indexes of the modified asphalt.
Example 6
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 10g of aromatic oil 20#10g of Shanghai Sanlian actual company Limited, namely aromatic oil KN4010 of Jiangsu build-Xin Industrial lubricating oil Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed of 5000r/min and 5-10min to obtain a product A, 15g of Huizhou Liangrong 3501 linear SBS modifier 5g of Huizhou Liangrong 161B star SBS modifier is added into the product A, the product B is sheared for 0.5-1h at 160 ℃, 15g of the ductility enhancer GX-1 of Zhenjiang material science and technology Limited is added into the product B, the product B is stirred at 160 ℃, the stirring speed of 150r/min and the product B is stirred for 1-2h and uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 16
TABLE 16 measurement results of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 17
TABLE 17 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the performance is shown in Table 18
TABLE 18 measurement of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 450.48 | 0.98 | 415.79 |
| 6.3％ | 445.38 | 2.0 | 444.14 |
| 6.5％ | 435.98 | 2.6 | 498.05 |
Example 7
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 10g of aromatic oil 20#10g of Shanghai Sanlian actual company Limited, namely aromatic oil KN4010 of Jiangsu build-Xin Industrial lubricating oil Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed of 5000r/min and 5-10min to obtain a product A, 10g of Huizhou Liangrong 3501 linear SBS modifier 10g of Huizhou Liangrong 161B star SBS modifier is added into the product A to be sheared for 0.5-1h at 160 ℃ to obtain a product B, 15g of Zhenjiang one material science and technology Limited extender GX-1 is added into the product B to be stirred at 160 ℃, the stirring speed of 150r/min is stirred for 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 19
TABLE 19 measurement results of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 20
TABLE 20 results of Properties measurements of high Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 21 shows
TABLE 21 measurement of Properties of the blends
| Oil to stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 530.48 | 0.98 | 405.81 |
| 6.3％ | 495.38 | 2.0 | 443.09 |
| 6.5％ | 465.98 | 2.6 | 478.03 |
Example 8
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 10g of aromatic oil 20#10g of Shanghai Sanlian actual company Limited, namely aromatic oil KN4010 of Jiangsu build-Xin Industrial lubricating oil Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed of 5000r/min and 5-10min to obtain a product A, 5g of Huizhou Liangrong 3501 linear SBS modifier 15g of Huizhou Liangrong 161B star SBS modifier is added into the product A, the product B is sheared for 0.5-1h at 160 ℃, 15g of Zhenjiang Liangrong material science and technology Limited extender GX-1 is added into the product B, the product B is stirred at 160 ℃, the stirring speed of 150r/min and the product B is stirred for 1-2h and uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 22
TABLE 22 measurement results of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 23
TABLE 23 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the performance is shown in Table 24
TABLE 24 measurement results of Properties of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 590.48 | 0.98 | 395.82 |
| 6.3％ | 565.38 | 2.0 | 423.15 |
| 6.5％ | 525.98 | 2.6 | 468.03 |
Example 9
Preparation of high-performance SBS modified asphalt
1000g of 70 # The asphalt and 10g of aromatic oil 20#10g of Shanghai Sanlian practical oil company Limited, 20#10g of aromatic oil of Jiangsu build-Xin Industrial lubricating oil company Limited are uniformly mixed under the conditions of 160 ℃, the shearing speed is 5000r/min and the shearing time is 5-10min to obtain a product A, 20g of Huizhou Liangrong 161B star SBS modifier is added into the product A to be sheared for 0.5-1h at 160 ℃ to obtain a product B, 15g of ductility extender GX-1 of Zhenjiang material science and technology company Limited is added into the product B to be stirred at 160 ℃, the stirring speed is 150r/min and the stirring time is 1-2h, and the mixture is uniformly mixed.
The performance of the obtained high-performance SBS modified asphalt is tested and shown in Table 25
TABLE 25 measurement results of Properties of high-Performance modified asphalt products
After TFOT (or RTFOT)
Preparation of emulsified asphalt
Weighing 25g of Tianjin Kangjer science and technology Limited micro-surfacing emulsifier 801S, adding into 300g of water at 70 ℃, stirring to dissolve, adding HCl, adjusting Ph to 2, and adding water to 400g to obtain a soap solution. Then 600g of SBS modified asphalt is taken and heated to 165 ℃, and the emulsified asphalt is prepared by the soap solution and the asphalt through a colloid mill.
The performance of the obtained high-performance SBS modified emulsified asphalt is tested and shown in Table 26
TABLE 26 measurement results of Properties of high-Performance modified emulsified asphalt products
The prepared high-performance SBS modified emulsified asphalt and stone are subjected to mixture test, the performance of the mixture is verified, and the table 27 shows
TABLE 27 results of Property measurements of the blends
| Oil-stone ratio | Wet wheel wear | Load wheel width deformation | Load wheel sticking sand |
| Standard of regulation | ≤540 | ≤5.0％ | ≤450 |
| 6.0％ | 682.48 | 0.98 | 365.81 |
| 6.3％ | 595.38 | 2.0 | 393.09 |
| 6.5％ | 565.76 | 2.6 | 418.03 |
According to the experimental data, with the increase of the dosage of the Huizhou Liangrong 161B star SBS modifier, the softening point of the modified asphalt is increased, but the ductility is reduced, the ductility of the modified emulsified asphalt of the example 8 and the example 9 is not qualified, so the dosage is omitted, the softening point of the example 7 is increased by a little compared with the softening point of the example 6, but the ductility is reduced greatly, and the index of the later-period mixture is relatively reduced, so the mixture ratio of the example 6 is the optimal mixture ratio.
Claims (9)
1. The high-performance composite SBS modified asphalt is characterized by comprising the following components in percentage by mass: 90-97% of petroleum asphalt, 1-4% of compatilizer and 1-4% of SBS modifier. The additive is 1-2%.
2. The high-performance composite SBS modified asphalt of claim 1, wherein the compatilizer is aromatic oil and naphthenic oil.
3. The high-performance composite SBS modified asphalt according to claim 2, wherein the ratio of the aromatic oil to the naphthenic oil is 1: 1.
4. The high-performance composite SBS modified asphalt of claim 1, wherein the modifier is both a linear SBS modifier and a star SBS modifier of styrene-butadiene block copolymer.
5. The high-performance composite SBS modified asphalt of claim 4, wherein the ratio of the linear SBS modifier to the star SBS modifier of the styrene-butadiene block copolymer is 1: 1.
6. The high-performance composite SBS modified asphalt of claim 1, wherein the petroleum asphalt is petroleum asphalt 70 # Asphalt, petroleum asphalt 90 # One kind of asphalt orTwo kinds.
7. The high-performance composite SBS modified asphalt of claim 1, wherein the additive is one or more of anti-stripping agent, ductility enhancer, anti-rutting agent and stabilizer.
8. The preparation method of the high-performance composite SBS modified asphalt as claimed in any one of claims 1-7, is characterized by comprising the steps of:
1) adding petroleum asphalt into a reactor, heating to 155-165 ℃, adding a compatilizer for shearing, wherein the shearing speed is 4500-5500r/min, shearing is 5-10min, and uniformly mixing to obtain a product A;
2) adding SBS modifier into the product A, shearing at 155-165 deg.c for 0.5-1 hr to obtain product B.
3) Adding the additive into the product B, stirring at the temperature of 155-165 ℃ at the stirring speed of 140-160r/min, stirring for 1-2h, and uniformly mixing.
9. A preparation method of a high-performance SBS modified emulsified asphalt material is characterized by comprising the following steps:
weighing a certain amount of cationic emulsifier, adding the cationic emulsifier into water with the temperature of 60-80 ℃, stirring to dissolve the cationic emulsifier, adding HCl, adjusting the pH to 2, adding water to obtain soap solution, heating a certain amount of the modified asphalt of any one of claims 1-8 to 160-180 ℃, and preparing the cationic emulsified asphalt from the soap solution and the modified asphalt through a colloid mill;
wherein the mass ratio of the water at the temperature of 60-80 ℃ to the emulsifier is 15: 1, the mass ratio of the soap liquid to the emulsifier is 16: 1, the mass ratio of the modified asphalt to the soap solution is 3: 2.
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|---|---|---|---|---|
| CN104530731A (en) * | 2015-01-06 | 2015-04-22 | 西安公路研究院 | High-viscosity spraying type SBS modified emulsified asphalt and preparing method thereof |
| CN106009739A (en) * | 2016-07-29 | 2016-10-12 | 中海沥青（泰州）有限责任公司 | Modified emulsified asphalt for ultrathin wearing layers and preparation method thereof |
| CN106554635A (en) * | 2016-11-16 | 2017-04-05 | 中石油江苏燃料沥青有限责任公司 | A kind of high softening-point SBS modified emulsifying asphalts and preparation method thereof |
| CN110951268A (en) * | 2019-12-19 | 2020-04-03 | 中化泉州能源科技有限责任公司 | Modified asphalt composition with excellent high and low temperature performance and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104530731A (en) * | 2015-01-06 | 2015-04-22 | 西安公路研究院 | High-viscosity spraying type SBS modified emulsified asphalt and preparing method thereof |
| CN106009739A (en) * | 2016-07-29 | 2016-10-12 | 中海沥青（泰州）有限责任公司 | Modified emulsified asphalt for ultrathin wearing layers and preparation method thereof |
| CN106554635A (en) * | 2016-11-16 | 2017-04-05 | 中石油江苏燃料沥青有限责任公司 | A kind of high softening-point SBS modified emulsifying asphalts and preparation method thereof |
| CN110951268A (en) * | 2019-12-19 | 2020-04-03 | 中化泉州能源科技有限责任公司 | Modified asphalt composition with excellent high and low temperature performance and preparation method thereof |
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