CN100384942C - Composite modified asphalt material and its production method - Google Patents
Composite modified asphalt material and its production method Download PDFInfo
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- CN100384942C CN100384942C CNB031290280A CN03129028A CN100384942C CN 100384942 C CN100384942 C CN 100384942C CN B031290280 A CNB031290280 A CN B031290280A CN 03129028 A CN03129028 A CN 03129028A CN 100384942 C CN100384942 C CN 100384942C
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- modified asphalt
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- paraffin
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Abstract
The present invention relates to a composite modified asphalt material for road construction, which adopts FT paraffin and styrene-butadiene rubber (SBR) as a composite modifying agent. A production method of the composite modified asphalt material comprises the following steps: heating asphalt to 110 to 200 DEG C; then, adding the SBR accounting for 0.5% to 20% of the weight of the asphalt into the asphalt to be mixed for 10 to 120 minutes; 1% to 15% of FT paraffin is added into the asphalt again to be mixed for 5 to 60 minutes and obtain modified asphalt. The composite modified asphalt material can enhance the high and low temperature performance of the composite modified asphalt material, make stable storage and have good construction properties.
Description
Technical field
The present invention relates to a kind of modified asphalt material and production method thereof that is used for Road construction.
Background technology
In pitch, add polymkeric substance and be used for improving bituminous performance existing decades of history.U.S. Pat 5002987 reported with styrene-butadiene rubber(SBR) (SBR) and improved the bituminous performance, and styrene-butadiene rubber(SBR) mainly improves the bituminous low-temperature performance, and is not obvious to the improvement of high-temperature behavior, and 135 ℃ of viscosity of SBR modifying asphalt are excessive simultaneously, and workability is relatively poor.Chinese patent CN1276820A discloses and has adopted the made paraffin modification pitch of Fischer-Tropsch synthesis, and the shortcoming of this method is that the low-temperature performance of modifying asphalt is undesirable, and its use is subjected to great limitation.Chinese patent CN1287133A discloses the method that adopts SBR and SBS composite modified asphalt, the shortcoming of this method is owing to adopted SBS, its processing units needs colloidal mill, production technique is comparatively complicated, simultaneously owing to added sulphur, can produce deleterious hydrogen sulfide in process of production, environment is had pollution; Its storage stability is also good inadequately in addition, and 135 ℃ of viscosity of modifying asphalt are excessive, and workability is relatively poor.
Summary of the invention
The object of the present invention is to provide and a kind ofly can improve bituminous high-temperature behavior and low-temperature performance simultaneously, storage-stability, workability is good, and technology simply is used for the modified asphalt material and the production method thereof of Road construction.
The modified asphalt material that is used for road that the present invention proposes adopts FT paraffin, styrene-butadiene rubber(SBR) (SBR) as composite modifier, requires to change the weight proportion of FT paraffin and SBR according to actual road surface.Usually, SBR is the 0.5%-20% of pitch weight, is 1%-5% preferably; FT paraffin is the 1%-15% of pitch weight, is 2%-5% preferably.Compare with modifying asphalt in the past, the present invention has following remarkable advantage: can improve the high temperature and the low-temperature performance of bituminous material, storage-stability has good construction performance.
FT paraffin of the present invention is by Fischer-Tropsch synthesis synthetic paraffin, and its fusing point is 68-105 ℃, especially the FT paraffin of oxidation; SBR can be the emulsion polymerized styrene butadiene rubber of the various series of home-made, as 1000,1100,1500,1600,1700,1800 series etc., is preferably not carbon black-filled rubber, i.e. 1000,1500 series.
The production method of modified asphalt material of the present invention is as follows: earlier pitch is heated to 110-200 ℃, make it to mobile fully, then SBR is joined in the pitch, mixed 10-120 minute, after treating that SBR and pitch mix well, again FT paraffin is joined in the pitch, mixed 5-60 minute, promptly get the composite modified asphalt finished product.
Embodiment
The invention will be further described below by embodiment, but it does not limit the scope of the invention.
Embodiment 1:
500g Maoming 90# pitch is heated down at 120 ℃, then with 80gSBR (trade mark 1500, the outlet of Shandong Qilu Petrochemical company, contain the solid glue of 22%SBR) add gradually, start whipping device and stir, simultaneously pitch is continued to be heated to 165 ℃, stirred 45 minutes, SBR mixes in pitch fully.Add again 15gFT paraffin (German Schumann. Sa Suoer company produces, and commodity are called Sasobit), stirred 30 minutes, promptly obtain composite modified asphalt, its character sees Table 1.
Comparative Examples 1
500g Maoming 90# pitch is heated down at 120 ℃, then with the 80gSBR (trade mark 1500, Shandong Qilu Petrochemical company produces, contain the solid glue of 22%SBR) slowly add, starting whipping device simultaneously slowly stirs, begin simultaneously the bituminous temperature is slowly risen to 165 ℃, stir and obtain modifying asphalt after 75 minutes, its character sees Table 1.
Comparative Examples 2
With 500g Maoming 90# pitch 165 ℃ of down heating, add then 15gFT paraffin (German Schumann. Sa Suoer company produces, and commodity are called Sasobit), stirred 30 minutes, obtain modifying asphalt, its character sees Table 1.
Table 1
| Numbering | Embodiment 1 | Comparative Examples 1 | Comparative Examples 2 |
| Asphalt stock, g | 500 | 500 | 500 |
| The SBR emulsion, g | 80 | 80 | 0 |
| FT paraffin, g | 15 | 0 | 15 |
| Penetration degree, dmm@25 ℃ | 51 | 74 | 64 |
| Softening temperature, ℃ @5 ℃/min | 75.0 | 54.5 | 70.5 |
| Ductility, cm@5 ℃, 5cm/min | ＞150 | ＞150 | 0 |
| Isolation test, ℃ | 0.5 | 0.5 | 0 |
| Viscosity is moored @135 ℃ | 0.6 | 1.7 | 0.3 |
As can be seen from Table 1, embodiments of the invention 1 road that all satisfies China regulation is with modifying asphalt index (i.e. " highway Modified Bitumen Pavement technical specifications " JTJ036-1998; Compare with Comparative Examples 1, the softening temperature of the modifying asphalt of embodiment 1 will exceed a lot, shows that its high-temperature behavior obviously is better than 1,135 ℃ of viscosity of Comparative Examples and is significantly less than Comparative Examples 1, shows that it has good construction performance; Compare with Comparative Examples 2,5 ℃ of ductilities of the modifying asphalt of embodiment 1 are greater than 150cm, and the ductility of Comparative Examples 2 is 0cm, shows that the low-temperature performance of embodiment 1 is better than the performance of Comparative Examples 2.
Adopt modifying asphalt and Maoming 90# pitch of embodiment 1 preparation to carry out wheel tracking test, table 2 as a result respectively.
Table 2
| Modifying asphalt | Maoming 90# pitch | |
| The wheel tracking test dynamic stability, inferior/mm | 3600 | 1050 |
As can be seen from Table 2, the dynamic stability of the moving stabilization ratio basic asphalt of modifying asphalt of the present invention's preparation improves greatly, illustrates that modifying asphalt has good anti-rut performance, shows that its high-temperature stability has obtained obvious improvement.
Embodiment 2
With 150 ℃ of 500g Maoming 90# pitch heating, with 15gSBR (trade mark 1500, Shandong Qilu Petrochemical company product, contain the solid glue of 22%SBR) add gradually, start whipping device and stir, and pitch is continued to be heated to 190 ℃, stirred 100 minutes, SBR mixes in pitch fully.Add again 50gFT paraffin (German Schumann. Sa Suoer company produces, and commodity are called Sasobit), stirred 50 minutes, promptly get required composite modified asphalt.Compare with the individual event modifying asphalt, have and the similar result of table 1.
Embodiment 3
With Maoming 90# pitch 500g, SBR50g, FT paraffin 25g, preparation process condition is with embodiment 1.Resulting composite modified asphalt is compared with the individual event modifying asphalt, has and the similar result of table 1.
Embodiment 4
With Maoming 90# pitch 500g, SBR40g, FT paraffin 10g, preparation process condition is with embodiment 2.Resulting composite modified asphalt is compared with the individual event modifying asphalt, has and the similar result of table 1.
The prepared composite modified asphalt of the foregoing description all has good high-temperature and low-temperature performance, storage-stability, and good construction performance is arranged.
Claims (4)
1. a modified asphalt material that is used for Road construction is characterized in that with FT paraffin and styrene-butadiene rubber(SBR) be composite modifier, and its consumption proportion is that styrene-butadiene rubber(SBR) is the 0.5%-20% of pitch weight, and FT paraffin is the 1%-15% of pitch weight.
2. modified asphalt material according to claim 1 is characterized in that the styrene-butadiene rubber(SBR) consumption is the 1%-5% of pitch weight.
3. modified asphalt material according to claim 1 is characterized in that FT paraffin consumption is the 2%-5% of pitch weight.
4. production method as one of claim 1-3 described modified asphalt material, it is characterized in that earlier pitch being heated to 110-200 ℃, make it mobile fully, then butylbenzene is joined in the pitch as glue, mixed 10-120 minute, again FT paraffin is joined in the pitch, mixed 5-60 minute, promptly get required composite modified asphalt finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031290280A CN100384942C (en) | 2003-06-02 | 2003-06-02 | Composite modified asphalt material and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031290280A CN100384942C (en) | 2003-06-02 | 2003-06-02 | Composite modified asphalt material and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513917A CN1513917A (en) | 2004-07-21 |
| CN100384942C true CN100384942C (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031290280A Expired - Fee Related CN100384942C (en) | 2003-06-02 | 2003-06-02 | Composite modified asphalt material and its production method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062999B (en) * | 2006-04-28 | 2010-05-12 | 上海群康沥青科技有限公司 | Chromatic bituminous cement and preparation method and application thereof |
| CN101012338B (en) * | 2007-02-08 | 2010-05-19 | 青海弘川化工实业有限公司 | SBR modified road bitumen |
| CN102453335A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Environment-friendly oil-resistant asphalt pavement material and preparation method thereof |
| CN102061098B (en) * | 2010-11-25 | 2013-07-24 | 重庆鹏方路面工程技术研究院有限公司 | Asphalt mixture warm-mixing modifier and preparation method thereof |
| CN107513280A (en) * | 2016-06-17 | 2017-12-26 | 中国石油化工股份有限公司 | Warm mix flame-retardant pitch, contain its compound and preparation method thereof |
| CN109337389A (en) * | 2018-09-11 | 2019-02-15 | 上海龙沛环保科技有限公司 | Energy saving and environment friendly asphalt modifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053438A (en) * | 1990-12-21 | 1991-07-31 | 齐鲁石油化工公司研究院 | Styrene butadiene rubber modified asphalt and method for making |
| US5151456A (en) * | 1991-05-28 | 1992-09-29 | Koch Industries, Inc. | Emulsified sealant having a high solids content |
| CN1276820A (en) * | 1997-08-29 | 2000-12-13 | 舒曼·萨索尔公司 | Bitumen or asphalt for producing road topping, road topping and method for production of bitumen or asphalt |
| CN1351096A (en) * | 2000-10-26 | 2002-05-29 | 中国石油化工股份有限公司 | Asphalt cementing material for drainage-type pavement and its preparing process |
-
2003
- 2003-06-02 CN CNB031290280A patent/CN100384942C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053438A (en) * | 1990-12-21 | 1991-07-31 | 齐鲁石油化工公司研究院 | Styrene butadiene rubber modified asphalt and method for making |
| US5151456A (en) * | 1991-05-28 | 1992-09-29 | Koch Industries, Inc. | Emulsified sealant having a high solids content |
| CN1276820A (en) * | 1997-08-29 | 2000-12-13 | 舒曼·萨索尔公司 | Bitumen or asphalt for producing road topping, road topping and method for production of bitumen or asphalt |
| CN1351096A (en) * | 2000-10-26 | 2002-05-29 | 中国石油化工股份有限公司 | Asphalt cementing material for drainage-type pavement and its preparing process |
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| CN1513917A (en) | 2004-07-21 |
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