CN1990569A - Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof - Google Patents
Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof Download PDFInfo
- Publication number
- CN1990569A CN1990569A CN 200510112316 CN200510112316A CN1990569A CN 1990569 A CN1990569 A CN 1990569A CN 200510112316 CN200510112316 CN 200510112316 CN 200510112316 A CN200510112316 A CN 200510112316A CN 1990569 A CN1990569 A CN 1990569A
- Authority
- CN
- China
- Prior art keywords
- high viscosity
- modified asphalt
- water permeable
- permeable pavement
- viscosity modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a high viscosity modified asphalt for water permeable pavements, wherein the asphalt comprises the following constituents (by weight ratio): asphalt 100, styrene-isoprene-styrene segmented copolymer 3-12 having an average molecular weight of 30-300 thousand, polypropene wax 3-10 having an average molecular weight of 500-15000 and a softening point of 90-160 deg, sulfur 0.05-1. According to the invention, high viscosity, good dispersity and stability can be achieved, the PG classification can reach 82-28. The obtained high-performance modified asphalt can be used for both the general water seeping pavements, and specific sites such as bridge pavement and stress absorption layer.
Description
Technical field
The present invention relates to a kind of high viscosity modified asphalt for water permeable pavement.
Background technology
Asphaltum with high viscosity is meant the pitch of 60 ℃ of viscosity greater than 20,000 Pa.s, is suitable for spreading out and putting on of traffic road surface and drainage pavement.Asphaltum with high viscosity mainly makes by add polymer modification in petroleum pitch at present.Add polymkeric substance petroleum pitch is carried out modification, can obviously improve bituminous high and low temperature performance, the anti-rut of high temperature, the low temperature cracking resistance ability of bituminous pavement is provided.But,, make the polymer modified asphalt difficulties in dispersion owing to have differences such as molecular weight, viscosity between polymkeric substance and the pitch; Simultaneously, because most polymers and pitch can be compatible fully, and exist density difference, at high temperature storage stability is bad to cause the modifying asphalt system, and layering easily influences asphalt quality and normal construction.
For solving the problem of asphaltum with high viscosity difficulties in dispersion, Chinese patent cn1089349c has reported and has adopted elder generation with polymkeric substance and pitch and other Synergist S-421 95 blend, is prepared into easily dispersive masterbatch in pitch, this masterbatch is dispersed in the pitch preparation modifying asphalt again.
Be to solve the high temperature storing stabilization problem of modifying asphalt, United States Patent (USP) us3,634,293 when having proposed use polymer modified asphalt, adding superoxide, the method for linking agents such as sulphur; International monopoly wo45,488 have proposed SB two blocks and SBS triblock copolymer and usefulness are added the method for a spot of linking agent; Chinese patent cn1386790A discloses by earlier with polymkeric substance and the carbon black blend method of modifying asphalt again.
But all good water-permeable pavement of dispersed and stability yet there are no report with modifying asphalt.
Summary of the invention
The purpose of this invention is to provide a kind of new high-viscosity modified asphalt, this pitch not only disperses easily, and also has high temperature storing stabilization preferably.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of easy dispersive high viscosity modified asphalt for water permeable pavement, it contains following component; Pitch 100, styrene isoprene styrene block copolymer (SIS) (SIS) 3～12, polyethylene wax 3～10, sulphur 0.05～1 (more than be parts by weight).
Described styrene isoprene styrene block copolymer (SIS) (SIS) molecular weight is better 3～300,000 o'clock effects, and the preferable scope of its content is 5～10 parts, most preferably is 6～9 parts.
The molecular-weight average of described polyethylene wax is 500～15000, and softening temperature is 90～160 ℃.Its content range is preferably 4～8 weight fraction.
Described sulphur content is 0.1～0.5 weight part preferably, and most preferred scope is 0.12～0.2 weight part.
The preparation method of easy dispersive high viscosity modified asphalt for water permeable pavement of the present invention is: earlier pitch is heated to flowable state, add styrene isoprene styrene block copolymer (SIS) and polyethylene wax then successively, the powerful stirring adds SULPHUR POWDER continuation stirring again and gets final product.
Beneficial effect of the present invention: the present invention mixes styrene isoprene styrene block copolymer (SIS) and polyethylene wax in pitch, not only viscosity is very high, and it is dispersed and stability is also fine, the PG classification reaches 82-28, belong to high performance modifying asphalt, can be used for general water seeping pavement, also can be used for special occasions such as deck paving and stress absorbing layer.
Embodiment
Get penetration degree and be 100 kilograms of 300 basic asphalts, be heated to 180 ℃, (molecular-weight average is 5000 to add 8 kilograms of styrene isoprene styrene block copolymer (SIS) (SIS) (molecular-weight average is 160,000) and polyethylene wax successively, softening temperature is 130 ℃) 8 kilograms, the employing machine,massing stirred 6 hours with 200 rev/mins stirring velocity, added 0.18 kilogram of SULPHUR POWDER, continued to stir 1 hour, prepare modifying asphalt, the results are shown in Table one.
Table one
| The index of modifying asphalt | |
| 25 ℃ of penetration degrees, dmm | 70 |
| 5 ℃ of ductilities, 5cm/min (cm) | 26 |
| Softening temperature T R&B(℃) | 90 |
| 135 ℃ of kinematic viscosity (Pa.s) | 2.9 |
| 25 ℃ of recovery of elasticity (%) | 94 |
| Ductility is 5 ℃ behind the RTFOT, 5cm/min (cm) | 16 |
| 60 ℃ of viscosity (10000Pa.s) | 4.3 |
| The PG classification | 82-28 |
As can be seen from the table, prepare high performance modifying asphalt, 60 degree viscosity are greater than 20,000 Pa.s, and the PG classification reaches 82～28, and high performance modifying asphalt can be used for OGFC, also can be used for special occasions such as deck paving, stress absorbing layer in addition.
Claims (7)
1, a kind of easy dispersive high viscosity modified asphalt for water permeable pavement, the weight fraction of its each component is as follows: pitch 100, molecular weight styrene isoprene styrene block copolymer (SIS) 3～12, the molecular-weight average between 3～300,000 is 500～15000, and softening temperature is 90～160 ℃ polyethylene wax 3～10, a sulphur 0.05～1.
2, easy dispersive high viscosity modified asphalt for water permeable pavement as claimed in claim 1, it is characterized in that: the weight fraction of styrene isoprene styrene block copolymer (SIS) is 5～10.
3, easy dispersive high viscosity modified asphalt for water permeable pavement as claimed in claim 2, it is characterized in that: the weight fraction of styrene isoprene styrene block copolymer (SIS) is 6～9.
4, easy dispersive high viscosity modified asphalt for water permeable pavement as claimed in claim 1, it is characterized in that: the weight fraction of polyethylene wax is 4～8.
5, easy dispersive high viscosity modified asphalt for water permeable pavement as claimed in claim 1, it is characterized in that: the weight fraction of sulphur is 0.1～0.5.
6, easy dispersive high viscosity modified asphalt for water permeable pavement as claimed in claim 5, it is characterized in that: the weight fraction of sulphur is 0.12～0.2 weight part.
7, the preparation method of the described arbitrary easy dispersive high viscosity modified asphalt for water permeable pavement of claim 1～6, this method is: earlier pitch is heated to flowable state, add styrene isoprene styrene block copolymer (SIS) and polyethylene wax then successively, the powerful stirring adds SULPHUR POWDER again and continues to stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510112316 CN1990569A (en) | 2005-12-29 | 2005-12-29 | Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510112316 CN1990569A (en) | 2005-12-29 | 2005-12-29 | Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1990569A true CN1990569A (en) | 2007-07-04 |
Family
ID=38213120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510112316 Pending CN1990569A (en) | 2005-12-29 | 2005-12-29 | Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1990569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456700B (en) * | 2008-12-22 | 2011-11-16 | 同济大学 | Method for preparing composite modified rubber asphalt mixture |
| CN107523072A (en) * | 2016-06-17 | 2017-12-29 | 中国石油化工股份有限公司 | A kind of warm mix Sulphur asphalt, contain its compound and preparation method thereof |
-
2005
- 2005-12-29 CN CN 200510112316 patent/CN1990569A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456700B (en) * | 2008-12-22 | 2011-11-16 | 同济大学 | Method for preparing composite modified rubber asphalt mixture |
| CN107523072A (en) * | 2016-06-17 | 2017-12-29 | 中国石油化工股份有限公司 | A kind of warm mix Sulphur asphalt, contain its compound and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1312216C (en) | High-viscosity asphalt modifier and its preparation method | |
| CN102858881B (en) | Bituminous composition | |
| JP2886711B2 (en) | Asphalt composition for paving | |
| CN108410185A (en) | A kind of high-viscosity asphalt and preparation method thereof | |
| CN108165036A (en) | A kind of modified asphalt composite of low temperature performance excellent and preparation method thereof | |
| CN111363371A (en) | Environment-friendly low-grade composite modified high-modulus asphalt and preparation method thereof | |
| CN1990557A (en) | High viscosity modified asphalt | |
| KR100521786B1 (en) | Manufacture of high efficiency binder for color packing and color packing method using it | |
| CN1990553A (en) | High viscosity composite modified asphalt for OGFC | |
| CN113563727A (en) | Modified rubber asphalt and preparation method thereof | |
| CN113698138B (en) | high-RAP-content regeneration mixture and preparation method and application thereof | |
| CN107880576A (en) | A kind of modifying agent, preparation method and applications | |
| CN1990569A (en) | Dispersible high viscosity modified asphalt for water permeable pavement and preparation method thereof | |
| US5399598A (en) | Asphalt composition | |
| CN100523090C (en) | High viscosity composite modified asphalt for OGFC and preparation method thereof | |
| CN1990555A (en) | High viscosity asphalt composition | |
| CN1990593A (en) | High viscosity asphalt composition for water draining pavement and preparation method thereof | |
| CN1990591A (en) | High viscosity asphalt composition for water draining pavement | |
| CN1990574A (en) | High stability high viscosity modified asphalt and preparation method thereof | |
| CN1990584A (en) | High viscosity modified asphalt for water permeable pavement and preparation method thereof | |
| CN1990562A (en) | High viscosity modified asphalt for water seeping pavement | |
| CN1990567A (en) | High dispersibility high viscosity modified asphalt | |
| CN1990554A (en) | Dispersible high viscosity modified asphalt for water permeable pavement | |
| CN1990561A (en) | High viscosity modified asphalt composition for water seeping pavement | |
| CN1990559A (en) | High viscosity modified asphalt for water permeable pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |