CN100343337C - Modified asphalt mixture - Google Patents
Modified asphalt mixture Download PDFInfo
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- CN100343337C CN100343337C CNB031071635A CN03107163A CN100343337C CN 100343337 C CN100343337 C CN 100343337C CN B031071635 A CNB031071635 A CN B031071635A CN 03107163 A CN03107163 A CN 03107163A CN 100343337 C CN100343337 C CN 100343337C
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- modified asphalt
- asphalt mixture
- anhydride
- asphalt
- vinyl monomer
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Abstract
The present invention discloses a modified asphalt mixture. The present invention contains chemical modified asphalt, polyester resin and a polymerisable vinyl monomer, wherein the chemical modified asphalt is synthesized by the reaction of common asphalt, polyhydroxy acid or anhydride and organic polyatomic alcohol; the polyester resin is formed from unsaturated polyhydroxy acid or anhydride and organic polyatomic alcohol; the vinyl monomer serves as a cross linking agent. The modified asphalt and the polyester resin generate cross linking reaction under the function of the vinyl monomer, and thus, the modified asphalt mixture is formed. When the modified asphalt mixture is used for reinforcing hard matters, particularly fiber glass reinforcement material is used for processing the hard matters, the effect is obvious, the hardness of the modified asphalt can be enhanced, the modified asphalt can be compatible with additional reinforcement materials, and thus, the modified asphalt mixture has good low temperatures crack resistance capability and reflection crack resistance capability.
Description
Technical field the present invention relates to a kind of modified asphalt mixture, particularly carries out the asphalt of modification with vibrin.
Background technology pitch has obtained using widely in road engineering as a kind of ground surface material, but because it to the susceptibility of temperature, makes it when high temperature because of intensity and rigidity reduce, the easily softening and generation rut in road surface, bulge, phenomenons such as bellding, and relatively poor because of crack resistance when low temperature, the road surface easily produces fatigue cracking, shrinkage cracking, reflective crack, and cause the road surface sharply to be damaged, influenced the weather resistance of bituminous pavement.Along with expanding economy, development of technology, traffic flow increases day by day, and Modern Traffic is the security of advanced road especially, economy, comfortableness, the use properties and the work-ing life of road pavement material have higher requirement.
After road structure has been carried out sufficient research, it is found that and use modifying asphalt to come laying road effectively to address the aforementioned drawbacks.So-called modifying asphalt is meant the certain properties-correcting agent of interpolation in plain asphalt, be used for improving asphalt resistance capacity to deformation at high temperature, thereby make the bituminous pavement after the laying have the ability of excellent high-temperature stability, good low-temperature cracking resistance and reflection crack.And that properties-correcting agent has plenty of the influence of asphalt performance is positive, has plenty of positive and negative two-sided mutual contradiction.Therefore, to scientifically, reasonably select according to road traffic condition, weather condition and economic condition for properties-correcting agent.Modifying asphalt on the ordinary meaning is meant with the polymkeric substance to be the pitch of properties-correcting agent, the kind difference of polymkeric substance, then its to asphalt performance to influence difference also different.
At present, external highway adopts modifying asphalt as pavior mostly, the properties-correcting agent that it adopted has coal, artificial synthetic rubber and petroleum resin etc., though these modifying asphalts have favorable durability, resistance to abrasion to a certain extent, but, because the properties-correcting agent and the bituminous material that are added are incompatible, cause properties-correcting agent can not play the effect of modification, thereby can not prolong the work-ing life on its road surface of laying.
Summary of the invention the invention discloses a kind of modified asphalt mixture, include chemical modified bitumen, vibrin and polymerisable vinyl monomer in this modified asphalt mixture, wherein, chemical modified bitumen is by plain asphalt and poly-hydroxy acid or anhydride or acid anhydride and organic polyhydric alcohol reaction synthetic, vibrin is formed by undersaturated poly-hydroxy acid or anhydride and organic polyhydric alcohol, and vinyl monomer uses as linking agent.This chemical modified bitumen and vibrin and vinyl monomer are mixed, and under the effect of vinyl monomer, chemical modified bitumen and vibrin generation crosslinking reaction finally form this modified asphalt mixture.It is used in hardware reinforces, especially carry out hardware with the glass fibre reinforcement material and add man-hour, its particular significant effect not only can improve the hardness of modifying asphalt, can also be compatible with properties-correcting agent, thereby have good low-temperature cracking resistance and the fissured ability of antireflection.
Modified asphalt mixture of the present invention is achieved like this, at first prepare chemical modified bitumen, its process is, earlier ordinary road being laid used bituminous material mixes with the poly-hydroxy acid or anhydride, it is taken place should, with reacted bituminous material and organic polyhydric alcohol hybrid reaction, wherein, described poly-hydroxy acid or anhydride is 15～85% with the addition (weight percent) of the relative modifying asphalt of organic polyhydric alcohol then.The temperature that reaction takes place if want to make speeding up of reaction generation, can be accelerated the lift velocity of temperature between 100～400 degrees centigrade, also can earlier plain asphalt be placed to have organic solvent inert the inside, for example aromatic solvent.
As for preparation above-mentioned modifying asphalt used poly-hydroxy acid or anhydride, of the present invention is the polyhydroxy-acid that has comprised 2～25 carbon atoms and 2～4 hydroxyls, for example MALEIC ANHYDRIDE, propanedioic acid, oxalic acid, pentanedioic acid, suberic acid etc.And used organic polyhydric alcohol then is the polyvalent alcohol that has comprised 2～20 carbon atoms and 2～4 hydroxyls, for example vinyl ethylene glycol, glycerol etc.
After plain asphalt and poly-hydroxy acid or anhydride and organic polyhydric alcohol reaction modifying, again modifying asphalt is mixed with vibrin and react, used vibrin is formed by poly-hydroxy acid or anhydride and organic polyhydric alcohol esterification, and these poly-hydroxy acid or anhydrides and organic polyhydric alcohol can be the raw materials that above-mentioned modifying asphalt adopts.
When modifying asphalt mixes the generation crosslinking reaction with polymer resin, need to add the carrying out that linking agent adds fast response, in general, can adopt traditional employed linking agent in the polyester moulding process, of the present invention is vinyl monomer, it comprises 6～12 carbon atoms, also comprises phenyl, naphthyl and quinolyl, specifically can be vinylbenzene, Vinylstyrene, vinylquinoline etc.
Above-mentioned modifying asphalt, vibrin and linking agent are mixed preparation modified asphalt mixture of the present invention, wherein, the consumption of modifying asphalt is based on 10～60% of asphalt total amount, the consumption of vibrin also is 10～75% of a compound total amount, linking agent is 5～15%, and all per-cent all is based on the weight percent of asphalt total amount.
Compared with prior art, when modified asphalt mixture of the present invention is used for road pavement, has following outstanding feature.
1. excellent high-temperature stability;
With add strongthener consistency preferably arranged;
3. the fissured ability of good low-temperature cracking resistance and antireflection;
4. cohesive force and anti-water damage ability strengthen;
5. has long work-ing life.
Embodiment
Embodiment: the plain asphalt sample of getting 300kg is put into the pitch stirred pot, Heating temperature to 110 degree centigrade, the suitable divinyl acid anhydrides that adds 180kg then therein, heated and stirred is upgraded to 200 degrees centigrade until temperature, heat under this temperature and carried out 3 hours, cooling gradually then is when temperature is reduced to 150 degrees centigrade, add 200kg ethylene glycol, under this temperature, mix and stirred 24 hours.Getting 300kg is again joined in the stirred pot by propanedioic acid and ethylene glycol synthetic vibrin, mix and stirred 6 hours, at last again to wherein adding 30kg vinylbenzene, mix and stir, the mixture that obtains stirred 48 hours down at 140 degrees centigrade, just synthesized polyester modification asphalt of the present invention, it is used in hardware reinforces, especially carry out hardware with the glass fibre reinforcement material and add man-hour, its particular significant effect, not only can improve the hardness of modifying asphalt, can also have the fissured ability of good low-temperature cracking resistance and antireflection with to add strongthener compatible.
Claims (6)
1, a kind of modified asphalt mixture, contain modifying asphalt, vibrin and vinyl monomer, it is characterized in that, described modifying asphalt is by plain asphalt and poly-hydroxy acid or anhydride and organic polyhydric alcohol reaction synthetic, vibrin is by poly-hydroxy acid or anhydride and organic polyhydric alcohol esterification synthetic, vinyl monomer uses as linking agent, and modifying asphalt and vibrin under the effect of linking agent vinyl monomer crosslinking reaction take place, and promptly forms modified asphalt mixture of the present invention.
2, modified asphalt mixture according to claim 1 is characterized in that, the poly-hydroxy acid or anhydride that adds in the modifying asphalt is the acid or anhydride that comprises 2～25 carbon atoms and 2～4 hydroxyls.
3, modified asphalt mixture according to claim 1 is characterized in that, the organic polyhydric alcohol that adds in the modifying asphalt is the organic polyhydric alcohol that comprises 2～20 carbon atoms and 2～4 hydroxyls.
According to claim 1,2 or 3 described modified asphalt mixtures, it is characterized in that 4, described poly-hydroxy acid or anhydride and the addition of organic polyhydric alcohol in modifying asphalt are 10～85%.
5, modified asphalt mixture according to claim 1 is characterized in that, the vinyl monomer that uses as linking agent comprises 6～12 carbon atoms, outside also comprise phenyl, naphthyl and quinolyl.
6, modified asphalt mixture according to claim 1 is characterized in that, weight percent is formed in the modified asphalt mixture: the consumption of modifying asphalt is 10～60%, and vibrin is 10～75%, and linking agent is 5～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031071635A CN100343337C (en) | 2003-03-06 | 2003-03-06 | Modified asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031071635A CN100343337C (en) | 2003-03-06 | 2003-03-06 | Modified asphalt mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1526766A CN1526766A (en) | 2004-09-08 |
| CN100343337C true CN100343337C (en) | 2007-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031071635A Expired - Fee Related CN100343337C (en) | 2003-03-06 | 2003-03-06 | Modified asphalt mixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN100343337C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352276B (en) * | 2013-07-27 | 2015-04-22 | 山西永东化工股份有限公司 | Manufacturing method of high-modulus high-strength chopped carbon fiber |
| CN105239176A (en) * | 2015-10-09 | 2016-01-13 | 蚌埠市天源气体有限责任公司 | Manufacturing method for environmental friendly thermal insulation material used in low-temperature pipe |
| CN108441091A (en) * | 2018-04-24 | 2018-08-24 | 吴刚 | A kind of photocatalyst urges the preparation method of dry Polyester Paint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289801A (en) * | 1999-09-29 | 2001-04-04 | 中国石油化工集团公司 | Process for preparing polymer-asphalt composition |
| CN1299847A (en) * | 1999-12-13 | 2001-06-20 | 中国石油化工集团公司 | Preparation of asphalt composite for use in cold area |
-
2003
- 2003-03-06 CN CNB031071635A patent/CN100343337C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289801A (en) * | 1999-09-29 | 2001-04-04 | 中国石油化工集团公司 | Process for preparing polymer-asphalt composition |
| CN1299847A (en) * | 1999-12-13 | 2001-06-20 | 中国石油化工集团公司 | Preparation of asphalt composite for use in cold area |
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| Publication number | Publication date |
|---|---|
| CN1526766A (en) | 2004-09-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Oceanpower Corp. Assignor: Haichuan Industry Co., Ltd., Shenzhen Contract fulfillment period: 2008.8.9 to 2015.1.17 contract change Contract record no.: 2008440000275 Denomination of invention: Modified asphalt mixture Granted publication date: 20071017 License type: Exclusive license Record date: 20081014 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.9 TO 2015.1.17; CHANGE OF CONTRACT Name of requester: SHENZHEN HAICHUAN ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20081014 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20160306 |