CN103289105A - Method for preparing emulsified rubber asphalt - Google Patents
Method for preparing emulsified rubber asphalt Download PDFInfo
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- CN103289105A CN103289105A CN2013101706296A CN201310170629A CN103289105A CN 103289105 A CN103289105 A CN 103289105A CN 2013101706296 A CN2013101706296 A CN 2013101706296A CN 201310170629 A CN201310170629 A CN 201310170629A CN 103289105 A CN103289105 A CN 103289105A
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Abstract
The invention discloses a method for preparing emulsified rubber asphalt. The method for preparing the emulsified rubber asphalt comprises the following steps of: adding rubber powder into matrix asphalt by adopting an external doping manner, and shearing for 40-60 minutes by virtue of a shear device to obtain rubber asphalt; and mixing the rubber asphalt with an emulsifier aqueous solution, and stirring mixed materials in the shear device, thus the emulsified rubber asphalt is obtained. The method for preparing the emulsified rubber asphalt has the advantages of simple preparation process, easiness in operation, low cost, short spent time and the like, and according to the method for preparing the emulsified rubber asphalt, properties of the emulsified rubber asphalt are improved; and the prepared emulsified rubber asphalt can be used for pavement maintenance, maintenance, production of asphalt mixture, production of composite materials and the like.
Description
Technical field
The present invention relates to a kind of modified asphalt preparation method, especially relate to a kind of preparation method of emulsified rubber asphalt.
Background technology
Emulsified bitumen is with common matrix pitch, through adding emulsifying agent and churned mechanically method, is diffused in the water, utilizes the amphiphile, amphiphilic molecule of the hydrophilic end oleophylic of emulsifying agent one end, generates oil-in-water or water in oil mobile shape pitch.Emulsified bitumen has save energy, environmental pollution is few and advantage such as easy construction, is usually used in construction waterproofing engineering and the Road construction.In Road construction, be mainly used in maintenance, maintenance and slurry seal, the tack coat etc. of old pavement.Compare with common hot asphalt, emulsified bitumen provides a kind of construction process of safer, energy-conservation and environmental protection.In recent years, along with the day by day raising of people to environmental protection requirement, emulsified bitumen has obtained using widely.But because the thermolability of emulsified bitumen, its application is subjected to certain restriction.Aspect maintenance of surface, maintenance, increasing organisations and institutions tend to use more high-quality bituminous material to punish the crack, and give up pitch or the emulsified bitumen of non-modified.High-quality pitch not only can be used for the crack sealing but also can be used for the crack filling.
In order to improve the performance of pitch each side, in engineering, usually add properties-correcting agent and make modifying asphalt.Most popular is the SBS modifying asphalt, has the modifying asphalt about 40% all to adopt the SBS modification in the world at present, compares with plain asphalt, and its high temperature, low-temperature performance all are greatly improved.But the price that the SBS modifying asphalt is expensive has limited it to a certain extent and has used and promote.And the modifying asphalt of making as properties-correcting agent with rubber powder, not only can improve high temperature performance, anti-fatigue performance, cling property and the reduction pavement noise of pitch, and can reduce the black pollution of junked tire to a great extent, have triple advantages of performance, price and environmental protection.Press for environmental protection, saving type Development of Materials direction according to present China, promote rubber powder and asphalt and have broad prospect of application.
Emulsified bitumen and rubber asphalt all have the advantage that plain asphalt does not possess, and by simple and easy, feasible method both are merged preparation emulsified rubber powder pitch and have both improved the pavement performance of material, reduce the material cost thereby reduced the waste old pollution again.It is a kind of type material that can be applied to road maintenance, maintenance and preparation bituminous concrete and various matrix materials.A kind of preparation method of waste rubber modified emulsifying asphalt is disclosed among the patent CN102660125A, this method is preparation fluid rubber under High Temperature High Pressure at first, then matrix pitch heating back and fluid rubber are carried out the mixed Crumber rubber modified asphalt that gets, at last the rubber asphalt for preparing is mixed and high speed shear with the emulsifier solution of preparation in advance.Fluid rubber preparation technology is complicated in this method, and the long high speed shear time may be caused the excessive desulfurization of rubber grain and degraded, and too high velocity of shear may cause breakdown of emulsion when rubber asphalt and emulsifier solution mixed.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of technology is simple, the preparation method of easy handling, emulsified rubber asphalt with low cost.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of preparation method of emulsified rubber asphalt adopts outer mode of mixing to add rubber powder in matrix pitch, shears 40～60min with boxshear apparatus, obtains rubber asphalt; Above-mentioned rubber asphalt is mixed with emulsifier aqueous solution, place boxshear apparatus to stir mixed material, can make emulsified rubber asphalt.
Wherein, described matrix pitch is for meeting the bi tumenf orr oad that GB/T15180-2010 " heavy traffic paving asphalt " requires, and described rubber powder adopts normal temperature to grind 30 orders or the 40 order using rubber powder of waste tire of producing.
Wherein, the add-on of described rubber powder is 25%～30% of matrix pitch quality.
Wherein, the velocity of shear of described boxshear apparatus is 1000～1100r/min.
Wherein, described emulsifier aqueous solution fully stirs back reheat to 50～60 ℃ of emulsifier aqueous solutions that obtain for by being that 1～3% emulsifying agent, 0～1% thickening material and 0～1% auxiliary agent add in the deionized water with mass percent.
Wherein, the profit mass ratio of described rubber asphalt and emulsifier aqueous solution is 50: 50 or 60: 40.
Wherein, the temperature of described matrix pitch is 180 ℃～200 ℃, and the temperature of described rubber asphalt is 120～130 ℃.
Wherein, the time that described boxshear apparatus stirs is 3～5min, the rotating speed of described boxshear apparatus is 400～500r/min, and boxshear apparatus keeps lower rotating speed can guarantee the storage stability of emulsified rubber asphalt, and the too high rotating speed of boxshear apparatus causes emulsified rubber asphalt stability to reduce even breakdown of emulsion easily.
Wherein, described emulsifying agent is that alkyl polyoxyethylene base bi-quaternary ammonium salt is 1: 1 mixing with palmityl trimethyl ammonium chloride or cetyl trimethylammonium bromide by mass ratio, perhaps, for being 1: 1: 0.25 mixing by mass ratio in alkyl polyoxyethylene base bi-quaternary ammonium salt and palmityl trimethyl ammonium chloride or cetyl trimethylammonium bromide and the alkylphenol polyoxyethylene, several different emulsifying agents can alternately be adsorbed on the surface of pitch particle, and has an excellent compatibility, can relax the tension force that brings owing to electrostatic repulsion with between a kind of emulsifying agent molecule, compare with single emulsifying agent, compound emulsifying agent can improve the stability of emulsifier solution; Thickening material is Natvosol, can improve the viscosity of water, reduces the density variation between water and the oil, increases the thickness of the hydration layer of pitch coated outside, improves the stability of emulsion; Auxiliary agent is any one in ammonium chloride, polyvinyl alcohol, calcium chloride or the hydrochloric acid, consumption guarantees that according to the pH value of aqueous solution adjustment consumption is no more than 1%, and auxiliary agent is used for regulating the pH value of emulsifier aqueous solution, improve the emulsifying capacity of emulsifying agent, the stability of raising emulsion with this, and reduce cost.
Wherein, the pH value of described emulsifier aqueous solution is 5～6.
The pH value of temperature, emulsifying agent volume, emulsifier aqueous solution all has considerable influence to the emulsified bitumen effect, wherein pH value the having the greatest impact to emulsifying effectiveness of emulsifier aqueous solution.When the pH value is incorrect, only with the concentration of emulsifying agent, the adjustment of temperature, can not reach and make pitch well be dispersed in purpose in the emulsifying agent, stability can not meet the demands; And when reaching suitable pH value, even reduce the concentration of emulsifying agent, emulsifying agent still can disperse pitch.When the pH of emulsifier aqueous solution value was 5～6, emulsifier aqueous solution was brown, and foam is few, and emulsification is complete, and the surface skining phenomenon is slight during than other pH values, and the breakdown of emulsion time is long.
Beneficial effect: than prior art, the present invention has that preparation technology is simple, easy handling, with low cost, advantage such as take a short time, and preparation method of the present invention has improved the performance of emulsified bitumen, and the emulsified rubber asphalt that makes can be used for purposes such as maintenance of surface, maintenance, making asphalt and making matrix material.
Embodiment:
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand that the described content of embodiment only is used for explanation the present invention, and should also can not limit the present invention described in detail in claims.
Embodiment 1
A kind of preparation method of emulsified rubber asphalt, below the add-on of each material all be that quality with pitch is standard, No. 90 A level road bitumens that meet the specifications is required are heated to 185 ℃, the 27.5%(volume that mixes asphalt quality outward guarantees that viscosity index reaches requirement) 30 order waste tire rubber powders, adopt high-speed shearing machine to shear 60min, obtain rubber asphalt, velocity of shear is 1000r/min, and rubber asphalt is cooled to 130 ℃ in air;
With 1.0% alkyl polyoxyethylene base bi-quaternary ammonium salt of asphalt quality, 1.0% palmityl trimethyl ammonium chloride, 0.25% alkylphenol polyoxyethylene and 0.6% Natvosol, add in the deionized water, fully stir and be heated to 50 ℃, add the pH value that 1% ammonium chloride is regulated emulsifier aqueous solution again in solution, the pH value that makes emulsifier aqueous solution is 5;
With the rubber asphalt that is cooled to 120 ℃ in the normal temperature, be that 60:40 mixes with emulsifier aqueous solution by the profit mass ratio, place boxshear apparatus to stir 3min mixed material, rotating speed is 400r/min, can make solid content is 60% emulsified rubber asphalt.
Embodiment 2
A kind of preparation method of emulsified rubber asphalt, below the add-on of each material all be that quality with pitch is standard, No. 70 A level bi tumenf orr oads with the meet the specifications requirement, its technical feature is as follows: (25 ℃ of penetration degrees, 0.1mm) be 70.8, softening temperature (℃) be 49.6, (10 ℃ is 23.7 cm) to ductility, is heated to 180 ℃, 25% the normal temperature that mixes asphalt quality outward grinds 40 order using rubber powder of waste tire, adopt high-speed shearing machine to shear 40min, obtain rubber asphalt, velocity of shear is 1100r/min, rubber asphalt is grown 1h down at 175 ℃, in air, be cooled to 130 ℃;
Get 1.5% alkyl polyoxyethylene base bi-quaternary ammonium salt, 1.5% cetyl trimethylammonium bromide and 0.2% the Natvosol of asphalt quality, add in the deionized water, fully stir and be heated to 60 ℃, add 0.5% polyvinyl alcohol again and regulate the pH value of emulsifier aqueous solution, the pH value that makes emulsifier aqueous solution is 6;
With the rubber asphalt that is cooled to 130 ℃, be with emulsifier aqueous solution to mix at 50: 50 by the profit mass ratio, place boxshear apparatus to stir 5min mixed material, rotating speed is 450r/min, can make solid content is 55% emulsified rubber asphalt.
Embodiment 3
A kind of preparation method of emulsified rubber asphalt, below the add-on of each material all be that quality with pitch is standard, No. 90 A level road bitumens that meet the specifications is required are heated to 200 ℃, 30% the normal temperature that mixes asphalt quality outward grinds 30 order waste tire rubber powders, adopt high-speed shearing machine to shear 50min, obtain rubber asphalt, velocity of shear is 1050r/min, and rubber asphalt is cooled to 125 ℃ in air;
1.2% alkyl polyoxyethylene base bi-quaternary ammonium salt, 1.2% cetyl trimethylammonium bromide and 0.3% the alkylphenol polyoxyethylene of getting asphalt quality add in the deionized water, fully stir and be heated to 55 ℃, add the pH value that 0.1% calcium chloride is regulated emulsifier aqueous solution again in solution, the pH value that makes emulsifier aqueous solution is 5.5;
With the rubber asphalt that is cooled to 125 ℃ in the normal temperature, be that 50:50 mixes with emulsifier aqueous solution by the profit mass ratio, place boxshear apparatus to stir 4min mixed material, rotating speed is 500r/min, can make solid content is 50% emulsified rubber asphalt.
Embodiment 4
A kind of preparation method of emulsified rubber asphalt, below the add-on of each material all be that quality with pitch is standard, No. 90 A level road bitumens that meet the specifications is required are heated to 190 ℃, 40% the normal temperature that mixes asphalt quality outward grinds 40 order waste tire rubber powders, adopt high-speed shearing machine to shear 50min, obtain rubber asphalt, velocity of shear is 1100r/min, and rubber asphalt is cooled to 120 ℃ in air;
Get 0.5% alkyl polyoxyethylene base bi-quaternary ammonium salt, 0.5% palmityl trimethyl ammonium chloride and 1.0% the Natvosol of asphalt quality, add in the deionized water, fully stir and be heated to 50 ℃, add the pH value that 0.8% hydrochloric acid is regulated emulsifier aqueous solution again in solution, the pH value that makes emulsifier aqueous solution is 6;
With the rubber asphalt that is cooled to 120 ℃ in the normal temperature, be that 60:40 mixes with emulsifier aqueous solution by the profit mass ratio, place boxshear apparatus to stir 5min mixed material, rotating speed is 400r/min, can make solid content is 60% emulsified rubber asphalt.
Claims (10)
1. the preparation method of an emulsified rubber asphalt is characterized in that: adopt outer mode of mixing to add rubber powder in matrix pitch, shear 40～60min with boxshear apparatus, obtain rubber asphalt; Above-mentioned rubber asphalt is mixed with emulsifier aqueous solution, place boxshear apparatus to stir mixed material, can make emulsified rubber asphalt.
2. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: the particle diameter of described rubber powder is 30 orders or 40 orders.
3. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: the add-on of described rubber powder is 25%～30% of matrix pitch quality.
4. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: the velocity of shear of described boxshear apparatus is 1000～1100r/min.
5. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: described emulsifier aqueous solution is for by being that 1%～3% emulsifying agent, 0～1% thickening material and 0～1% auxiliary agent add in the deionized water with mass percent, stirs fully that back reheat to 50～60 ℃ obtains.
6. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: the profit mass ratio of described rubber asphalt and emulsifier aqueous solution is 50: 50 or 60: 40.
7. the preparation method of emulsified rubber asphalt according to claim 1, it is characterized in that: the temperature of described matrix pitch is 180 ℃～200 ℃, and the temperature of described rubber asphalt is 120～130 ℃.
8. the preparation method of emulsified rubber asphalt according to claim 1 is characterized in that: the time that described boxshear apparatus stirs is 3～5min, and the rotating speed of described boxshear apparatus is 400～500r/min.
9. the preparation method of emulsified rubber asphalt according to claim 4, it is characterized in that: described emulsifying agent is that alkyl polyoxyethylene base bi-quaternary ammonium salt is mixing of 1:1 with palmityl trimethyl ammonium chloride or cetyl trimethylammonium bromide by mass ratio, perhaps, for being mixing of 1:1:0.25 by mass ratio in alkyl polyoxyethylene base bi-quaternary ammonium salt and palmityl trimethyl ammonium chloride or cetyl trimethylammonium bromide and the alkylphenol polyoxyethylene, thickening material is Natvosol, and auxiliary agent is any one in ammonium chloride, polyvinyl alcohol, calcium chloride or the hydrochloric acid.
10. the preparation method of emulsified rubber asphalt according to claim 4, it is characterized in that: the pH value of described emulsifier aqueous solution is 5～6.
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| CN201310170629.6A CN103289105B (en) | 2013-05-09 | 2013-05-09 | A kind of preparation method of emulsified rubber asphalt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911009A (en) * | 2014-04-02 | 2014-07-09 | 上海群康沥青科技有限公司 | Emulsified rubber powder modified asphalt and preparation method thereof |
| CN106009729A (en) * | 2016-06-28 | 2016-10-12 | 郭迎庆 | Preparing method of modified emulsified asphalt |
| CN106496595A (en) * | 2016-10-13 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of composite asphalt emulsifying agent |
| CN109266027A (en) * | 2018-09-17 | 2019-01-25 | 浙江潮源新型建材股份有限公司 | Reclaimed rubber modified pitch |
| DE102017130751B4 (en) | 2016-12-21 | 2022-06-23 | Toyo Tire & Rubber Co., Ltd. | rubber composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997020891A1 (en) * | 1995-12-04 | 1997-06-12 | Kao Corporation | Asphalt emulsion |
| CN1664012A (en) * | 2005-02-04 | 2005-09-07 | 杨林江 | Emulsified SBS modified asphalt and processing method thereof |
| CN101173106A (en) * | 2007-09-30 | 2008-05-07 | 江苏博特新材料有限公司 | Rubber powder-asphalt emulsion for concrete asphalt mortar and method for producing the same |
| CN101205382A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Rubber asphalt composition |
-
2013
- 2013-05-09 CN CN201310170629.6A patent/CN103289105B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997020891A1 (en) * | 1995-12-04 | 1997-06-12 | Kao Corporation | Asphalt emulsion |
| CN1664012A (en) * | 2005-02-04 | 2005-09-07 | 杨林江 | Emulsified SBS modified asphalt and processing method thereof |
| CN101205382A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Rubber asphalt composition |
| CN101173106A (en) * | 2007-09-30 | 2008-05-07 | 江苏博特新材料有限公司 | Rubber powder-asphalt emulsion for concrete asphalt mortar and method for producing the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911009A (en) * | 2014-04-02 | 2014-07-09 | 上海群康沥青科技有限公司 | Emulsified rubber powder modified asphalt and preparation method thereof |
| CN103911009B (en) * | 2014-04-02 | 2016-04-13 | 上海群康沥青科技有限公司 | Emulsified rubber powder-modified asphalt and preparation method thereof |
| CN106009729A (en) * | 2016-06-28 | 2016-10-12 | 郭迎庆 | Preparing method of modified emulsified asphalt |
| CN106496595A (en) * | 2016-10-13 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of composite asphalt emulsifying agent |
| DE102017130751B4 (en) | 2016-12-21 | 2022-06-23 | Toyo Tire & Rubber Co., Ltd. | rubber composition |
| CN109266027A (en) * | 2018-09-17 | 2019-01-25 | 浙江潮源新型建材股份有限公司 | Reclaimed rubber modified pitch |
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| CN103289105B (en) | 2015-10-07 |
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