CN105038280A - SBS modified asphalt and preparation method thereof - Google Patents
SBS modified asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN105038280A CN105038280A CN201510608456.0A CN201510608456A CN105038280A CN 105038280 A CN105038280 A CN 105038280A CN 201510608456 A CN201510608456 A CN 201510608456A CN 105038280 A CN105038280 A CN 105038280A
- Authority
- CN
- China
- Prior art keywords
- sbs
- asphalt
- parts
- asphalt modifier
- modifier
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses SBS modified asphalt. The SBS modified asphalt is prepared with, by weight, 100 parts of matrix asphalt, 2.0-3.5 parts of SBS asphalt modifier, 1-2 parts of RET asphalt modifier, 0.2-0.5 part of polyphosphoric acid, 3-4 parts of compatilizer and 0.1-0.15 part of stabilizer. In addition, the invention further discloses a method for preparing the SBS modified asphalt. The method comprises the steps of 1, heating the matrix asphalt, adding the matrix asphalt into the compatilizer, stirring the mixture uniformly, and obtaining mixed materials; 2, adding the SBS asphalt modifier and the RET asphalt modifier into the mixed materials, stirring the mixture uniformly, conducting cutting, adding the stabilizer, continuing cutting, adding polyphosphoric acid, stirring the mixture uniformly, and obtaining the SBS modified asphalt. The SBS modified asphalt is chemical stabilization type SBS modified asphalt, great high temperature performance and anti-track performance are achieved, and the heat stability of the SBS modified asphalt is superior to that of traditional SBS modified asphalt.
Description
Technical field
The invention belongs to pavement construction material technical field, be specifically related to a kind of SBS modifying asphalt and preparation method thereof.
Background technology
Traditional SBS modifying asphalt the most frequently used at present can improve the high temperature of pitch, low temperature, fatigue and the performance such as ageing-resistant significantly, energy Comprehensive improves the performance of pitch, therefore it is the most extensive in global use, and its modified technique, construction technology and quality monitoring are also very ripe.However, still there is many problems in traditional SBS modifying asphalt, be first Cost Problems in Practical Project, and the price of SBS asphalt modifier is higher, and its volume will reach certain degree and just have good modified effect; Secondly require higher for modified device and modified technique, main manifestations is nucleus equipment-colloidal mill, China cannot produce satisfactory colloidal mill voluntarily a few years ago, this equipment can only from external import, due to patented technology all monopolize by external large producer, cause not only equipment price high, the maintenance of the equipment in later stage is also a very large difficult problem; Can the good colloidal mill of production performance voluntarily although at present domestic, market is various in style, very different, has no small difference between the equipment of different manufacturers, causes modified technique also different, greatly have impact on the quality of production of modifying asphalt; Polymer modified asphalt is produced as big batchization, the method can ensure asphalt quality preferably, but in Practical Project, construction site and factory are apart from relatively far away, modifying asphalt arrives and uses the on-the-spot long-distance transport needing special-purpose vehicle, and this can increase road construction cost undoubtedly.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of SBS modifying asphalt is provided, this SBS modifying asphalt is chemically stable type SBS modifying asphalt, has good high-temperature behavior and anti-rut behavior, and its thermostability is more better than traditional SBS modifying asphalt.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of SBS modifying asphalt, it is characterized in that, be made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.0 ~ 3.5 parts, RET asphalt modifier 1 ~ 2 part, polyphosphoric acid 0.2 ~ 0.5 part, compatilizer 3 ~ 4 parts, stablizer 0.1 ~ 0.15 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
Above-mentioned a kind of SBS modifying asphalt, is characterized in that, be made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.5 ~ 3.5 parts, RET asphalt modifier 1 ~ 1.5 part, polyphosphoric acid 0.3 ~ 0.5 part, compatilizer 3 ~ 3.5 parts, stablizer 0.1 ~ 0.13 part.
Above-mentioned a kind of SBS modifying asphalt, is characterized in that, be made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3 parts, RET asphalt modifier 1.2 parts, polyphosphoric acid 0.5 part, compatilizer 3 parts, stablizer 0.1 part.
In addition, present invention also offers a kind of method preparing above-mentioned SBS modifying asphalt, it is characterized in that, the method comprises the following steps:
Step one, matrix pitch is heated to 155 DEG C ~ 165 DEG C, then adds compatilizer and stir 15min ~ 20min, obtain mixture;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 165 DEG C ~ 175 DEG C to stir 15min ~ 20min, be the condition down cut 30min ~ 35min of 170 DEG C ~ 180 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 20min ~ 25min, polyphosphoric acid is added after shearing, be stir 30min ~ 40min under the condition of 175 DEG C ~ 185 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 10g/min ~ 15g/min, and the shearing rate of described shearing is 3500r/min ~ 4000r/min.
Above-mentioned method, is characterized in that, matrix pitch described in step one is 70#A level bi tumenf orr oad.
Above-mentioned method, is characterized in that, the asphalt modifier of SBS described in step 2 is type SBS asphalt modifier.
Above-mentioned method, is characterized in that, the mass percent concentration of polyphosphoric acid described in step 2 is with H
3pO
4count 110%.
The present invention compared with prior art has the following advantages:
1, in the present invention, RET asphalt modifier can improve the fatigue lifetime of matrix pitch, improves its high temperature Rut resistance, antistripping, prevents the ability etc. of cold cracking.And, RET asphalt modifier can improve the stability in storage of pitch, the production in enormous quantities and the Repeat-heating that are conducive to SBS modifying asphalt use, by adopting polyphosphoric acid (PPA) and RET asphalt modifier and SBS asphalt modifier to carry out composite as altered contents in the present invention, the consumption of SBS asphalt modifier can be reduced, reduce the production cost of SBS modifying asphalt, and significantly increase the stability of SBS modifying asphalt, avoid the appearance of emanating.
2, SBS modifying asphalt of the present invention not only has excellent pavement performance, complicated complete processing and modified device can be avoided simultaneously, quality monitoring is easy to carry out, owing to there is chemical reaction between various chemical modifier energy used in the present invention and matrix pitch, instead of simple physical blending, such matrix pitch with can form stable chemical bond between chemical modifier and connect, change asphalt adhesive body structure, the performance of General Promotion pitch, the PPA that the present invention adopts also has catalysis while playing chemical modification effect, there is good price advantage, not only the prices of raw and semifnished materials are lower, be only the half of SBS modifier price, volume is also less, generally be no more than 1.5% of matrix pitch quality, far below SBS modifier, with PPA, RET asphalt modifier Substitute For Partial SBS asphalt modifier can improve the performance of SBS modifying asphalt, preparation cost can be reduced again.
3, the complete processing of SBS modifying asphalt of the present invention is simple, without the need to equipment such as premixing tank, colloidal mill and growth tanks, only need adopt shears shear, stir can complete modification, mass energy can be saved, and this SBS modifying asphalt good thermal stability, can not segregation be produced.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the infrared contrast spectrogram of the SBS modifying asphalt of the embodiment of the present invention 1 preparation and the SBS modifying asphalt of comparative example 1 preparation.
Embodiment
Embodiment 1
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3 parts, RET asphalt modifier 1.2 parts, polyphosphoric acid 0.5 part, compatilizer 3 parts, stablizer 0.1 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 160 DEG C, then adds compatilizer and stir 15min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 165 DEG C to stir 15min, be the condition down cut 30min of 175 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 25min, polyphosphoric acid is added after shearing, be stir 40min under the condition of 175 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 10g/min, and the shearing rate of described shearing is 4000r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Comparative example 1
This comparative example SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 4.5 parts, compatilizer 3 parts, stablizer 0.1 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 160 DEG C, then adds compatilizer and stir 15min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one temperature of mixture be add under the condition of 170 DEG C SBS asphalt modifier stir 30min, be the condition down cut 40min of 180 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 30min, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier is 10g/min, and the shearing rate of described shearing is 4000r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier.
In Fig. 1, curve a is the infrared spectrum of SBS modifying asphalt prepared by embodiment 1, curve b is the infrared spectrum of SBS modifying asphalt prepared by comparative example 1, correlation curve a and curve b can find out, at wave number 900cm in the infrared spectrum of SBS modifying asphalt prepared by embodiment 1
-1~ 1200cm
-1between there is blended absorbent broad peak, illustrate in embodiment 1 by after composite to polyphosphoric acid, RET asphalt modifier and SBS asphalt modifier can with matrix pitch generation chemical reaction, generate phosphoric acid lipid material, due to the generation of this type of chemical reaction, add stability and the rheological characteristics thereof of SBS modifying asphalt.
Embodiment 2
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.5 parts, RET asphalt modifier 1.5 parts, polyphosphoric acid 0.3 part, compatilizer 3.5 parts, stablizer 0.13 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 155 DEG C, then adds compatilizer and stir 20min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 170 DEG C to stir 18min, be the condition down cut 35min of 170 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 20min, polyphosphoric acid is added after shearing, be stir 30min under the condition of 185 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 15g/min, and the shearing rate of described shearing is 3500r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Embodiment 3
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3.5 parts, RET asphalt modifier 1 part, polyphosphoric acid 0.5 part, compatilizer 3 parts, stablizer 0.1 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 165 DEG C, then adds compatilizer and stir 18min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 175 DEG C to stir 20min, be the condition down cut 32min of 180 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 23min, polyphosphoric acid is added after shearing, be stir 35min under the condition of 180 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 13g/min, and the shearing rate of described shearing is 3800r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Embodiment 4
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3 parts, RET asphalt modifier 1.25 parts, polyphosphoric acid 0.4 part, compatilizer 3.2 parts, stablizer 0.12 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 160 DEG C, then adds compatilizer and stir 17min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 170 DEG C to stir 18min, be the condition down cut 33min of 175 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 22min, polyphosphoric acid is added after shearing, be stir 35min under the condition of 180 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 12g/min, and the shearing rate of described shearing is 3700r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Embodiment 5
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2 parts, RET asphalt modifier 2 parts, polyphosphoric acid 0.5 part, compatilizer 4 parts, stablizer 0.15 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 165 DEG C, then adds compatilizer and stir 15min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 170 DEG C to stir 18min, be the condition down cut 35min of 170 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 20min, polyphosphoric acid is added after shearing, be stir 40min under the condition of 180 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 10g/min, and the shearing rate of described shearing is 4000r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Embodiment 6
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3.5 parts, RET asphalt modifier 1 part, polyphosphoric acid 0.2 part, compatilizer 3 parts, stablizer 0.1 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 155 DEG C, then adds compatilizer and stir 20min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 165 DEG C to stir 20min, be the condition down cut 35min of 170 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 20min, polyphosphoric acid is added after shearing, be stir 40min under the condition of 180 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 15g/min, and the shearing rate of described shearing is 4000r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
Embodiment 7
The present embodiment SBS modifying asphalt is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.8 parts, RET asphalt modifier 1.5 parts, polyphosphoric acid 0.35 part, compatilizer 3.5 parts, stablizer 0.12 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
The preparation method of the present embodiment SBS modifying asphalt comprises the following steps:
Step one, matrix pitch is heated to 160 DEG C, then adds compatilizer and stir 20min, obtain mixture; Described matrix pitch is preferably 70#A level bi tumenf orr oad;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 165 DEG C to stir 20min, be the condition down cut 35min of 170 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 25min, polyphosphoric acid is added after shearing, be stir 40min under the condition of 180 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 10g/min, and the shearing rate of described shearing is 4000r/min; Described SBS asphalt modifier is preferably type SBS asphalt modifier, and described polyphosphoric acid preferred mass percentage concentration is with H
3pO
4count the polyphosphoric acid of 110%.
One, technical indicator test
The Specifications of SBS modifying asphalt prepare embodiment 1 ~ embodiment 7 according to method of regulation in " highway engineering pitch and Asphalt Mixture Experiment code " (JTGE20-2011) and the SBS modifying asphalt of comparative example 1 preparation is tested, and test result is in table 1.
The Specifications test result of SBS modifying asphalt prepared by table 1 embodiment 1 ~ embodiment 7 and comparative example 1
As can be seen from Table 1, compared with comparative example 1, the softening temperature of SBS modifying asphalt prepared by embodiment 1 increases, show that SBS modifying asphalt prepared by embodiment 1 has the anti-rut behavior of better high-temperature behavior and Geng Gao, although the low-temperature performance of SBS modifying asphalt prepared by embodiment 1 slightly declines, but still meet the technical requirements of I-D polymer modified asphalt, and rheological test result (G*/sin δ) shows that SBS modifying asphalt prepared by embodiment 1 has good anti-rut behavior, show that its high-temperature behavior is improved further, in addition, as can be seen from Table 1, SBS modifying asphalt prepared by embodiment 2 ~ embodiment 7 all has good high-temperature behavior and anti-rut behavior.
Two, stability in storage test
The stability in storage of SBS modifying asphalt prepared by the SBS modifying asphalt prepared embodiment 1 ~ embodiment 7 according to " highway engineering pitch and Asphalt Mixture Experiment code " (JTGE20-2011) and comparative example 1 is tested, test condition stores 48h in temperature being 163 DEG C, and test result is in table 2.
The stability in storage test result of SBS modifying asphalt prepared by table 2 embodiment 1 ~ embodiment 7 and comparative example 1
As can be seen from Table 2, compared with embodiment 1, SBS modifying asphalt prepared by comparative example 1 is after storing 48h under the condition of 163 DEG C in temperature, the penetration degree of test sample top 1/3 and position, bottom 1/3, the SBS modifying asphalt that the difference of ductility and softening temperature is all prepared than embodiment 1 is large, illustrate that the chemical stability of SBS modifying asphalt prepared by embodiment 1 is obviously better than the SBS modifying asphalt of comparative example 1 preparation, in addition, SBS modifying asphalt prepared by embodiment 2 ~ embodiment 7 is after storing 48h under the condition of 163 DEG C in temperature, the penetration degree of test sample top 1/3 and position, bottom 1/3, the difference of ductility and softening temperature is all relatively little, illustrate that SBS modifying asphalt of the present invention has excellent chemical stability, storge quality is good.
Three, pavement performance test
The SBS modifying asphalt in embodiment 1 ~ embodiment 7 and the SBS modifying asphalt in comparative example 1 is adopted to prepare SBS modified asphalt mixture respectively, concrete preparation process is: adopt AC-13 type mineral aggregate gradation, aggregate grading design is in table 3, optimum oil-stone ratio is 4.7%, to gather materials to pour into after being heated to 185 DEG C ~ 195 DEG C mixes in pot, then the SBS modifying asphalt being heated to 165 DEG C ~ 175 DEG C is poured into mix in pot and stir 90s, then continue to stir 90s after adding breeze, obtain SBS modified asphalt mixture.Test the high temperature performance and the water stability that adopt the SBS modifying asphalt in embodiment 1 ~ embodiment 7 and the SBS modifying asphalt in comparative example 1 to prepare SBS modified asphalt mixture respectively according to " highway engineering pitch and Asphalt Mixture Experiment code " (JTGE20-2011), test result is in table 4, table 5 and table 6.
Table 3AC-13 type aggregate grading design
The high-temperature behavior test result of the SBS modified asphalt mixture that table 4 adopts the SBS modifying asphalt in embodiment 1 ~ embodiment 7 and comparative example 1 to prepare
As can be seen from Table 4, compared with comparative example 1, the dynamic stability of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare increases, rutting depth decreases, illustrate that the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare can reach the effect of the SBS modified asphalt mixture high-temperature stability being even better than 4.5wt% doping in prior art, the high-temperature behavior test result of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 2 ~ embodiment 7 to prepare also shows that the SBS modified asphalt mixture adopting SBS modifying asphalt of the present invention to prepare has good high-temperature stability.
The water stability test result of the SBS modified asphalt mixture that table 5 adopts the SBS modifying asphalt in embodiment 1 ~ embodiment 7 and comparative example 1 to prepare
| Asphalt type | R1(MPa) | R2(MPa) | TSR(％) |
| SBS modified asphalt mixture (embodiment 1 modifying asphalt) | 1.707 | 1.631 | 95.83 |
| SBS modified asphalt mixture (comparative example 1 modifying asphalt) | 1.662 | 1.586 | 95.46 |
| SBS modified asphalt mixture (embodiment 2 modifying asphalt) | 1.749 | 1.685 | 96.35 |
| SBS modified asphalt mixture (embodiment 3 modifying asphalt) | 1.690 | 1.615 | 95.55 |
| SBS modified asphalt mixture (embodiment 4 modifying asphalt) | 1.679 | 1.608 | 95.76 |
| SBS modified asphalt mixture (embodiment 5 modifying asphalt) | 1.738 | 1.695 | 97.5 |
| SBS modified asphalt mixture (embodiment 6 modifying asphalt) | 1.698 | 1.624 | 95.62 |
| SBS modified asphalt mixture (embodiment 7 modifying asphalt) | 1.717 | 1.645 | 95.83 |
As can be seen from Table 5, compared with comparative example 1, the freeze-thaw split strength ratio of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare increases, illustrate that the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare can reach the effect of the SBS modified asphalt mixture water stability of 4.5wt% doping in prior art, the water stability test result of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 2 ~ embodiment 7 to prepare also shows that the SBS modified asphalt mixture adopting SBS modifying asphalt of the present invention to prepare has good water stability.
-10 DEG C of low-temperature performance test results of the SBS modified asphalt mixture that table 6 adopts the SBS modifying asphalt in embodiment 1 ~ embodiment 7 and comparative example 1 to prepare
As can be seen from Table 6, compared with comparative example 1, the breaking strain of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare increases, illustrate that the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 1 to prepare can reach the effect of the SBS modified asphalt mixture low-temperature performance of 4.5wt% doping in prior art, the test result of the SBS modified asphalt mixture adopting the SBS modifying asphalt in embodiment 2 ~ embodiment 7 to prepare also shows that the SBS modified asphalt mixture adopting SBS modifying asphalt of the present invention to prepare has good low-temperature performance.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (7)
1. a SBS modifying asphalt, is characterized in that, is made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.0 ~ 3.5 parts, RET asphalt modifier 1 ~ 2 part, polyphosphoric acid 0.2 ~ 0.5 part, compatilizer 3 ~ 4 parts, stablizer 0.1 ~ 0.15 part; Described compatilizer is furfural extract oil, and described stablizer is sulphur.
2. according to a kind of SBS modifying asphalt according to claim 1, it is characterized in that, be made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 2.5 ~ 3.5 parts, RET asphalt modifier 1 ~ 1.5 part, polyphosphoric acid 0.3 ~ 0.5 part, compatilizer 3 ~ 3.5 parts, stablizer 0.1 ~ 0.13 part.
3. according to a kind of SBS modifying asphalt according to claim 2, it is characterized in that, be made up of the raw material of following weight part: matrix pitch 100 parts, SBS asphalt modifier 3 parts, RET asphalt modifier 1.2 parts, polyphosphoric acid 0.5 part, compatilizer 3 parts, stablizer 0.1 part.
4. prepare a method for SBS modifying asphalt as described in claim arbitrary in claims 1 to 3, it is characterized in that, the method comprises the following steps:
Step one, matrix pitch is heated to 155 DEG C ~ 165 DEG C, then adds compatilizer and stir 15min ~ 20min, obtain mixture;
Step 2, described in step one, the temperature of mixture is add SBS asphalt modifier and RET asphalt modifier under the condition of 165 DEG C ~ 175 DEG C to stir 15min ~ 20min, be the condition down cut 30min ~ 35min of 170 DEG C ~ 180 DEG C in temperature by mixture after stirring, then add stablizer to continue to shear 20min ~ 25min, polyphosphoric acid is added after shearing, be stir 30min ~ 40min under the condition of 175 DEG C ~ 185 DEG C again in temperature by mixture, obtain SBS modifying asphalt; The speed that adds of described SBS asphalt modifier and RET asphalt modifier is 10g/min ~ 15g/min, and the shearing rate of described shearing is 3500r/min ~ 4000r/min.
5. in accordance with the method for claim 4, it is characterized in that, matrix pitch described in step one is 70#A level bi tumenf orr oad.
6. in accordance with the method for claim 4, it is characterized in that, the asphalt modifier of SBS described in step 2 is type SBS asphalt modifier.
7. in accordance with the method for claim 4, it is characterized in that, the mass percent concentration of polyphosphoric acid described in step 2 is with H
3pO
4count 110%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510608456.0A CN105038280B (en) | 2015-09-22 | 2015-09-22 | A kind of SBS modified pitch and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510608456.0A CN105038280B (en) | 2015-09-22 | 2015-09-22 | A kind of SBS modified pitch and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105038280A true CN105038280A (en) | 2015-11-11 |
| CN105038280B CN105038280B (en) | 2017-08-25 |
Family
ID=54445269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510608456.0A Active CN105038280B (en) | 2015-09-22 | 2015-09-22 | A kind of SBS modified pitch and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105038280B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108299834A (en) * | 2017-12-20 | 2018-07-20 | 深圳市格瑞实业发展有限公司 | A kind of SBS modified pitch and preparation method thereof |
| CN108395719A (en) * | 2018-02-09 | 2018-08-14 | 山东星火科学技术研究院 | A kind of composite modified asphalt being conducive to construction |
| CN108440978A (en) * | 2018-03-30 | 2018-08-24 | 佛山市路邦沥青有限公司 | A kind of preparation method of modified pitch |
| CN108530918A (en) * | 2018-03-30 | 2018-09-14 | 佛山市路邦沥青有限公司 | A kind of efficiently anti-aging modified pitch |
| CN108546416A (en) * | 2018-05-02 | 2018-09-18 | 重庆水利电力职业技术学院 | The manufacturing method and high performance modified bitumen of high performance modified bitumen |
| CN108641380A (en) * | 2018-03-30 | 2018-10-12 | 佛山市路邦沥青有限公司 | A kind of preparation method of efficiently anti-aging modified pitch |
| CN109354889A (en) * | 2018-08-10 | 2019-02-19 | 桂林理工大学 | A kind of preparation method of calcined kaolin modified pitch |
| CN111286207A (en) * | 2020-02-26 | 2020-06-16 | 成都交通投资集团有限公司 | Modified asphalt composition for warm-mix thin-layer overlay and preparation method thereof |
| CN112226095A (en) * | 2020-09-26 | 2021-01-15 | 黄伟 | Preparation method of low-cost anti-segregation aging-resistant modified asphalt |
| CN113512297A (en) * | 2021-05-25 | 2021-10-19 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
| CN113999537A (en) * | 2021-11-09 | 2022-02-01 | 深圳市卓宝科技股份有限公司 | Modified asphalt and preparation method and application thereof |
| WO2022052202A1 (en) * | 2020-09-08 | 2022-03-17 | 福州大学 | High-toughness sbs/sbr polyphosphoric acid composite modified asphalt and preparation method therefor |
| CN114656793A (en) * | 2022-02-28 | 2022-06-24 | 甘肃省交通科学研究院集团有限公司 | PPA (polyphthalamide) -based compounded high-toughness SBS (styrene butadiene styrene) modified asphalt regenerant and preparation method thereof |
| CN115537033A (en) * | 2021-06-30 | 2022-12-30 | 中国石油化工股份有限公司 | SBS modified asphalt with stable storage performance and preparation method thereof |
| CN115637053A (en) * | 2022-09-02 | 2023-01-24 | 四川东方雨虹建筑材料有限公司 | Rapid preparation method of SBS modified asphalt |
| CN116925558A (en) * | 2023-09-14 | 2023-10-24 | 鄂尔多斯市路泰新材料科技发展有限公司 | SBS polyphosphoric acid composite high-viscosity high-elasticity modified asphalt and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054414A (en) * | 2018-08-10 | 2018-12-21 | 东莞东交沥青有限公司 | A kind of high temperature resistant road damping modification pitch and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194072A (en) * | 2013-04-25 | 2013-07-10 | 交通运输部公路科学研究所 | Complex modified asphalt composition and preparation method thereof |
| CN103305014A (en) * | 2013-05-06 | 2013-09-18 | 中海油（青岛）重质油加工工程技术研究中心有限公司 | SBS (stimulated brillouin scattering) modified asphalt and preparation method thereof |
| CN104710804A (en) * | 2015-03-17 | 2015-06-17 | 中国海洋石油总公司 | SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
-
2015
- 2015-09-22 CN CN201510608456.0A patent/CN105038280B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194072A (en) * | 2013-04-25 | 2013-07-10 | 交通运输部公路科学研究所 | Complex modified asphalt composition and preparation method thereof |
| CN103305014A (en) * | 2013-05-06 | 2013-09-18 | 中海油（青岛）重质油加工工程技术研究中心有限公司 | SBS (stimulated brillouin scattering) modified asphalt and preparation method thereof |
| CN104710804A (en) * | 2015-03-17 | 2015-06-17 | 中国海洋石油总公司 | SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| MARIA DE FÁTIMA AMAZONAS DE SÁ ARAUJO 等: "Weathering aging of modified asphalt binders", 《FUEL PROCESSING TECHNOLOGY》 * |
| 曹晓娟: "新型反应性沥青改性剂技术性能研究", 《当代化工》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108299834A (en) * | 2017-12-20 | 2018-07-20 | 深圳市格瑞实业发展有限公司 | A kind of SBS modified pitch and preparation method thereof |
| CN108395719A (en) * | 2018-02-09 | 2018-08-14 | 山东星火科学技术研究院 | A kind of composite modified asphalt being conducive to construction |
| CN108395719B (en) * | 2018-02-09 | 2020-10-23 | 山东星火科学技术研究院 | Composite modified asphalt beneficial to construction |
| CN108440978A (en) * | 2018-03-30 | 2018-08-24 | 佛山市路邦沥青有限公司 | A kind of preparation method of modified pitch |
| CN108530918A (en) * | 2018-03-30 | 2018-09-14 | 佛山市路邦沥青有限公司 | A kind of efficiently anti-aging modified pitch |
| CN108641380A (en) * | 2018-03-30 | 2018-10-12 | 佛山市路邦沥青有限公司 | A kind of preparation method of efficiently anti-aging modified pitch |
| CN108546416A (en) * | 2018-05-02 | 2018-09-18 | 重庆水利电力职业技术学院 | The manufacturing method and high performance modified bitumen of high performance modified bitumen |
| CN109354889A (en) * | 2018-08-10 | 2019-02-19 | 桂林理工大学 | A kind of preparation method of calcined kaolin modified pitch |
| CN111286207A (en) * | 2020-02-26 | 2020-06-16 | 成都交通投资集团有限公司 | Modified asphalt composition for warm-mix thin-layer overlay and preparation method thereof |
| WO2022052202A1 (en) * | 2020-09-08 | 2022-03-17 | 福州大学 | High-toughness sbs/sbr polyphosphoric acid composite modified asphalt and preparation method therefor |
| CN112226095A (en) * | 2020-09-26 | 2021-01-15 | 黄伟 | Preparation method of low-cost anti-segregation aging-resistant modified asphalt |
| CN113512297A (en) * | 2021-05-25 | 2021-10-19 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
| CN113512297B (en) * | 2021-05-25 | 2022-07-22 | 山东交通学院 | Composite modified asphalt doped with waste engine oil residues and polyphosphoric acid and preparation method thereof |
| CN115537033A (en) * | 2021-06-30 | 2022-12-30 | 中国石油化工股份有限公司 | SBS modified asphalt with stable storage performance and preparation method thereof |
| CN115537033B (en) * | 2021-06-30 | 2023-10-20 | 中国石油化工股份有限公司 | SBS modified asphalt with stable storage performance and preparation method thereof |
| CN113999537A (en) * | 2021-11-09 | 2022-02-01 | 深圳市卓宝科技股份有限公司 | Modified asphalt and preparation method and application thereof |
| CN114656793A (en) * | 2022-02-28 | 2022-06-24 | 甘肃省交通科学研究院集团有限公司 | PPA (polyphthalamide) -based compounded high-toughness SBS (styrene butadiene styrene) modified asphalt regenerant and preparation method thereof |
| CN115637053A (en) * | 2022-09-02 | 2023-01-24 | 四川东方雨虹建筑材料有限公司 | Rapid preparation method of SBS modified asphalt |
| CN115637053B (en) * | 2022-09-02 | 2023-09-15 | 四川东方雨虹建筑材料有限公司 | Quick preparation method of SBS modified asphalt |
| CN116925558A (en) * | 2023-09-14 | 2023-10-24 | 鄂尔多斯市路泰新材料科技发展有限公司 | SBS polyphosphoric acid composite high-viscosity high-elasticity modified asphalt and preparation method thereof |
| CN116925558B (en) * | 2023-09-14 | 2023-11-21 | 鄂尔多斯市路泰新材料科技发展有限公司 | SBS polyphosphoric acid composite high-viscosity high-elasticity modified asphalt and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105038280B (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105038280A (en) | SBS modified asphalt and preparation method thereof | |
| CN102061098B (en) | Asphalt mixture warm-mixing modifier and preparation method thereof | |
| CN104725883B (en) | A kind of high-viscosity high-elasticity asphalt being modified based on rubber particle surface, SMA asphalts and preparation method thereof | |
| CN102304289B (en) | Road asphalt prepared by adding plant asphalt to petroleum asphalt and production method thereof | |
| CN102796387A (en) | Epoxy glue powder asphalt material and preparation method thereof | |
| CN101824226A (en) | Preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage | |
| CN105482475A (en) | Composite modified hard asphalt and preparation method thereof | |
| CN103554930B (en) | A kind of high concentration SBR modified emulsifying asphalt and preparation method thereof | |
| CN103589177A (en) | Special SBS modified asphalt and preparation method thereof | |
| CN106519715B (en) | A kind of trench oil base modification biological pitch, biological asphalt mixture and preparation method thereof | |
| CN108822563A (en) | A kind of Kelamayi pitch dry method modification agent and its application | |
| CN105647166A (en) | Phase change energy storage asphalt polyurethane rigid foam and preparation method thereof | |
| CN101348350A (en) | Waste rubber powder composite modified asphalt and preparation thereof | |
| CN106189291A (en) | Iran's natural rock asphalt modified pitch and preparation method thereof | |
| CN105541181B (en) | A kind of rubber powder ground surface material and construction method | |
| CN105017782A (en) | High-grade road asphalt and preparation method thereof | |
| CN103804924A (en) | Normal temperature repair asphalt solution additive and preparation method thereof | |
| CN102898851A (en) | Styrene butadiene styrene (SBS) high-performance modified asphalt and preparation method thereof | |
| CN105948569A (en) | High-modulus modified recycling bituminous mixture and preparation method and application | |
| CN105038832A (en) | Biological asphalt for road as well as preparation device and preparation method of biological asphalt | |
| CN102504854A (en) | Method of producing modified asphalt | |
| CN105462272A (en) | Compound modified asphalt with conductivity and preparation method of compound modified asphalt | |
| CN107501910A (en) | A kind of solar water container polyurethane heat-insulating heat-preserving material | |
| CN104761917A (en) | Organic composite warm mix asphalt and preparation method thereof | |
| CN105985653A (en) | Normal temperature asphalt modifier prepared by using waste rubber oil and preparation method of modified asphalt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |