CN103030983A - High-elastic modified emulsified asphalt and preparation method thereof - Google Patents
High-elastic modified emulsified asphalt and preparation method thereof Download PDFInfo
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Abstract
The invention relates to high-elastic modified emulsified asphalt, which is prepared from the main raw materials as follows: ordinary asphalt, an emulgator, a modifying agent and water, wherein the ordinary asphalt adopts No.SK70 matrix asphalt, the emulgator is a cation asphalt emulgator, and the modifying agent is prepared from a SBR (Styrene-Butadiene Rubber) latex, a SBS (Styrene Butadiene Styrene) latex and a high-elastic number 1 modifying agent. The high-elastic modified emulsified asphalt has good high-temperature stability, good low temperature anti-cracking performance, good elasticity, aging resistance, good adhesivity and good antistrip performance, is suitable for micro-surfacing preventive maintenance of cement concrete pavements and bridge decks, asphalt concrete pavements and bridge decks and large span steel bridge decks paved by asphalt concrete, is particularly suitable for being applied to harsh conditions of special traffic, climate and the like in China, such as high temperature and low temperature extreme regions, and has important social and economic significances on speeding up the popularization and application of the emulsified asphalt. Meanwhile, a preparation method has the advantages of simplicity and convenience in operation, low requirement on equipment and convenience in industrialized mass production.
Description
Technical field
The present invention relates to a kind of emulsified bitumen and preparation method thereof, be specifically related to a kind of modified emulsifying asphalt and preparation method of the little table place preventive maintenance for cement concrete pavement and bridge floor, bituminous concrete pavement and bridge floor, large-stride steel bridge deck asphalt concrete pavement.
Background technology
Pitch is exactly to have mobile liquid state from solid-state having become under the normal temperature through feature the most outstanding behind the Over emulsfication, improved its use properties, have energy-saving and emission-reduction, environmental contamination reduction, improve execution conditions, prolong the advantages such as construction seasons, be widely used in the highway maintenance field.After emulsified bitumen melts pitch heat exactly, by the effect of emulsifying agent and machinery, make pitch with tiny microparticulate in certain aqueous solution and form bitumen emulsion.Emulsion is divided two kinds of oil-in-water-type and water-in-oil-types, when external phase is water, discontinuous phase during for oil, is oil-in-water-type, otherwise is water-in-oil-type.
The characteristics such as be used at present existing behind the emulsified bitumen breakdown of emulsion of road that high temperature easily trickles, fragile under low temperaturely splits, elasticity and resistance of aging are poor, usage capability of road and work-ing life have directly been affected, emulsified bitumen because can not adapt to that the Modern Traffic flow is large, axle load, speed high, restricted the application of emulsified bitumen.
Summary of the invention
The object of the present invention is to provide a kind of high-elastic modified emulsifying asphalt of excellent combination property.
Another object of the present invention is to provide the preparation method of above-mentioned high-elastic modified emulsifying asphalt.
Above-mentioned purpose of the present invention is achieved by the following technical solution:
A kind of high-elastic modified emulsifying asphalt is characterized in that: it is that raw material makes by plain asphalt, emulsifying agent, properties-correcting agent and water mainly; Described plain asphalt adopts the SK70# matrix pitch, and described emulsifying agent is cation asphalt emulgent, and described properties-correcting agent is comprised of SBR latex, SBS latex and high-elastic No. 1 properties-correcting agent.
Above-mentioned plain asphalt, SBR latex, SBS latex and high-elastic No. 1, cation asphalt emulgent are the commercially available prod.This area is all known, according to not going the same way with requiring, cation asphalt emulgent can adopt on demand soon split and coagulate soon type, slowly split fast solidifying type, in split fast solidifying type emulsifying agent, according to there being different trade mark products to sell on every kind of model market, as splitting slowly fast solidifying type MQK-1D, kzw-801U, JY-5R, GYMK-06, JY-II type etc. are arranged.
In order to overcome present emulsified bitumen high and low temperature poor-performing, the technical problem that the performances such as elasticity are undesirable, the contriver has creatively proposed above-mentioned SBR latex, SBS latex and the high-elastic No. 1 cooperation properties-correcting agent as emulsified bitumen, can obviously improve high and low warm nature and the elastic performance of emulsified bitumen, record its softening temperature at 75～82 ℃, ductility (5 ℃) at 80～120 cm, elastic restoration ratio is 50～60%, and test method is with reference to JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment rules ".
Preferably, the weight ratio of each composition is in the above-mentioned properties-correcting agent, SBR latex, SBS latex and be 1:1:0.5 high-elastic No. 1.
For the further package stability that improves the emulsion embodiment of the high-elastic modified emulsifying asphalt of the present invention, also comprise stablizer in the above-mentioned raw materials, described stablizer is one or more arbitrary combination in calcium chloride, ammonium chloride, sodium-chlor, polyvinyl alcohol, polyacrylamide, the dextrin.
Further preferred, the aforementioned stable agent is that calcium chloride and polyvinyl alcohol form with weight ratio 1:2.
Preferably, above-mentioned cation asphalt emulgent adopts positively charged ion to split slowly fast solidifying type asphalt emulsifier, the usage ratio of above-mentioned each feed composition is: the SK70# matrix pitch accounts for 62～68%, positively charged ion splits slowly fast solidifying type emulsifying agent and accounts for 1.6～2.0%, SBR latex accounts for 3～5%, SBS latex accounts for 3～5%, high-elastic No. 1 properties-correcting agent accounts for 1～2%, water accounts for 22～28%, and the aforementioned stable agent accounts for 0～0.5%, by percentage to the quality.
Further, each in the above-mentioned properties-correcting agent forms the per-cent account for total raw material weight and be: SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%.
Further, the usage ratio of above-mentioned each raw material is: the SK70# matrix pitch accounts for 65%, positively charged ion splits slowly fast solidifying type emulsifying agent and accounts for 1.8%, SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%, water accounts for 24%, stablizer calcium chloride accounts for 0.15%, polyvinyl alcohol accounts for 0.3%, by percentage to the quality.
The preparation method of above-mentioned high-elastic modified emulsifying asphalt, the preferred outer doping that adopts, carry out as follows:
1. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～60 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 1.5～3.5 described emulsifying agent soap lye about 55～60 ℃;
2. pour into rapidly the emulsifying agent soap lye of above-mentioned insulation in the mulser colloidal mill and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
3. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make the high-elastic modified emulsifying asphalt of the present invention.
The present invention has following beneficial effect:
The high-elastic modified emulsifying asphalt of the present invention has good high-temperature stability, low-temperature cracking-resistance, elasticity, anti-aging, adhesivity and antistrip performance, its softening temperature up to 82 ℃, ductility (5 ℃) can reach 120 cm, elastic restoration ratio reaches 60%, package stability was 3.8% in the 5th day, satisfy code requirement etc., test method is with reference to JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment rules ".Be fit to be applied to little table place preventive maintenance of cement concrete pavement and bridge floor, bituminous concrete pavement and bridge floor, large-stride steel bridge deck asphalt concrete pavement; In particular, be fit to apply to the exacting terms such as the special traffic of China, weather, such as high temperature, low temperature extreme regions, have important society and economic implications to accelerating applying of emulsified bitumen.Preparation method of the present invention is easy and simple to handle, not high to equipment requirements simultaneously, is convenient to the batch production batch production.
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Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1
A kind of high-elastic modified emulsifying asphalt makes as follows:
1. the preparation of raw material: the SK70# matrix pitch accounts for 65%, positively charged ion splits slowly fast solidifying type emulsifying agent MQK-1D and accounts for 1.8%, SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%, water accounts for 24%, stablizer calcium chloride accounts for 0.15%, polyvinyl alcohol accounts for 0.3%, by percentage to the quality.
2. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～65 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 1.5～2.5 described emulsifying agent soap lye about 55～65 ℃;
3. pour rapidly the emulsifying agent soap lye of above-mentioned insulation into mulser colloidal mill (Germany, model, AF 90S/2H-12) in and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
4. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make high-elastic modified emulsifying asphalt.
Above-mentioned high-elastic modified emulsifying asphalt performance such as the table 1 that makes:
The high-elastic modified emulsifying asphalt of table 1 and the contrast of common emulsified asphalt performance index
Annotate: test method is with reference to JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment rules ".
Embodiment 2
A kind of high-elastic modified emulsifying asphalt makes as follows:
1. the preparation of raw material: the SK70# matrix pitch accounts for 62%, positively charged ion splits slowly that fast solidifying type emulsifying agent kzw-801U accounts for that 2.0%, SBR latex accounts for 3.0%, SBS latex accounts for 5.0%, high-elastic No. 1 properties-correcting agent accounts for 1.0%, and water accounts for 26.5%, stablizer calcium chloride accounts for 0.5%, by percentage to the quality.
2. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～65 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 2.5～3.5 described emulsifying agent soap lye about 55～65 ℃;
3. pour rapidly the emulsifying agent soap lye of above-mentioned insulation into mulser colloidal mill (Germany, model, AF 90S/2H-12) in and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
4. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make high-elastic modified emulsifying asphalt.
Embodiment 3
A kind of high-elastic modified emulsifying asphalt makes as follows:
1. the preparation of raw material: the SK70# matrix pitch accounts for 68%, positively charged ion splits slowly that fast solidifying type emulsifying agent JY-5R accounts for that 1.6%, SBR latex accounts for 3.0%, SBS latex accounts for 3.0%, high-elastic No. 1 properties-correcting agent accounts for 2.0%, and water accounts for 22%, the stablizer polyacrylamide accounts for 0.4%, by percentage to the quality;
2. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～65 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 1.5～2.5 described emulsifying agent soap lye about 55～65 ℃;
3. pour rapidly the emulsifying agent soap lye of above-mentioned insulation into mulser colloidal mill (Germany, model, AF 90S/2H-12) in and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
4. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make high-elastic modified emulsifying asphalt.
Embodiment 4
A kind of high-elastic modified emulsifying asphalt makes as follows:
1. the preparation of raw material: the SK70# matrix pitch accounts for 66%, positively charged ion splits slowly that fast solidifying type emulsifying agent GYMK-06 accounts for that 1.8%, SBR latex accounts for 5.0%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.5%, and water accounts for 22%, stablizer ammonium chloride accounts for 0.1%, sodium-chlor accounts for 0.1%, by percentage to the quality;
2. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～65 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 2～3 described emulsifying agent soap lye about 55～65 ℃;
3. pour rapidly the emulsifying agent soap lye of above-mentioned insulation into mulser colloidal mill (Germany, model, AF 90S/2H-12) in and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
4. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make high-elastic modified emulsifying asphalt.
Embodiment 5
A kind of high-elastic modified emulsifying asphalt makes as follows:
1. the preparation of raw material: the SK70# matrix pitch accounts for 64%, positively charged ion splits slowly that fast solidifying type emulsifying agent JY-II accounts for that 1.8%, SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%, and water accounts for 25%, the stablizer dextrin accounts for 0.25%, polyacrylamide accounts for 0.2%, by percentage to the quality;
2. above-mentioned plain asphalt SK70# is placed electric donkey upward to be hot melt to 135～140 ℃; On the other hand, heat water to 55～65 ℃, add above-mentioned emulsifying agent, stablizer in this water and obtain the emulsifying agent soap lye, water bath heat preservation is about 55～65 ℃;
3. pour rapidly the emulsifying agent soap lye of above-mentioned insulation into mulser colloidal mill (Germany, model, AF 90S/2H-12) in and start machinery and begin to shear, then the plain asphalt of above-mentioned hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
4. in the above-mentioned emulsified bitumen that makes, add above-mentioned properties-correcting agent, make high-elastic modified emulsifying asphalt.
The above-mentioned high-elastic modified emulsifying asphalt that makes has good high-temperature stability, low-temperature cracking-resistance, elasticity, anti-aging, adhesivity and antistrip performance, its softening temperature at 75～82 ℃, ductility (5 ℃) at 80～120 cm, elastic restoration ratio is 50～60%, package stability reached 3.8% etc. in the 5th day, test method is with reference to JTG E20-2011 " highway engineering pitch and Asphalt Mixture Experiment rules ".Be fit to be applied to little table place preventive maintenance of cement concrete pavement and bridge floor, bituminous concrete pavement and bridge floor, large-stride steel bridge deck asphalt concrete pavement; In particular, be fit to apply to the exacting terms such as the special traffic of China, weather, such as high temperature, low temperature extreme regions, have important society and economic implications to accelerating applying of emulsified bitumen.Preparation method of the present invention is easy and simple to handle, not high to equipment requirements simultaneously, is convenient to the batch production batch production.
Claims (8)
1. high-elastic modified emulsifying asphalt, it is characterized in that: it is that raw material makes by plain asphalt, emulsifying agent, properties-correcting agent and water mainly; Described plain asphalt adopts the SK70# matrix pitch, and described emulsifying agent is cation asphalt emulgent, and described properties-correcting agent is comprised of SBR latex, SBS latex and high-elastic No. 1 properties-correcting agent.
2. high-elastic modified emulsifying asphalt as claimed in claim 1, it is characterized in that: the weight ratio of each composition is in the described properties-correcting agent, SBR latex, SBS latex and be 1:1:0.5 high-elastic No. 1.
3. high-elastic modified emulsifying asphalt as claimed in claim 1 or 2, it is characterized in that: comprise also in the described raw material that stablizer, described stablizer are one or more arbitrary combination in calcium chloride, ammonium chloride, sodium-chlor, polyvinyl alcohol, polyacrylamide, the dextrin.
4. high-elastic modified emulsifying asphalt as claimed in claim 3, it is characterized in that: described stablizer is comprised of with weight ratio 1:2 calcium chloride and polyvinyl alcohol.
5. such as high-elastic modified emulsifying asphalt as described in claim 3 or 4, it is characterized in that: described cation asphalt emulgent adopts positively charged ion to split slowly fast solidifying type asphalt emulsifier, the usage ratio of described each feed composition is: the SK70# matrix pitch accounts for 62～68%, positively charged ion splits slowly fast solidifying type emulsifying agent and accounts for 1.6～2.0%, SBR latex accounts for 3～5%, SBS latex accounts for 3～5%, high-elastic No. 1 properties-correcting agent accounts for 1～2%, water accounts for 22～28%, and the aforementioned stable agent accounts for 0～0.5%, by percentage to the quality.
6. high-elastic modified emulsifying asphalt as claimed in claim 5, it is characterized in that: each in the described properties-correcting agent forms the per-cent that accounts for total raw material weight and be: SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%.
7. high-elastic modified emulsifying asphalt as claimed in claim 5, it is characterized in that, the usage ratio of described each raw material is: the SK70# matrix pitch accounts for 65%, positively charged ion splits slowly fast solidifying type emulsifying agent and accounts for 1.8%, SBR latex accounts for 3.5%, SBS latex accounts for 3.5%, high-elastic No. 1 properties-correcting agent accounts for 1.75%, water accounts for 24%, and stablizer calcium chloride accounts for 0.15%, polyvinyl alcohol accounts for 0.3%, by percentage to the quality.
8. such as the preparation method of claim 1-7 high-elastic modified emulsifying asphalt as described in each, it is characterized in that, carry out as follows:
(1). place electric donkey upward to be hot melt to 135～140 ℃ described plain asphalt SK70#; On the other hand, heat water to 55～60 ℃, add described emulsifying agent in this water, stablizer obtains the emulsifying agent soap lye, water bath heat preservation adopts 34～36% hydrochloric acid soln in percent by volume that pH is transferred to 1.5～3.5 described emulsifying agent soap lye about 55～60 ℃;
(2). pour into rapidly the emulsifying agent soap lye of described insulation in the mulser colloidal mill and start machinery and begin to shear, then the plain asphalt of described hot melt is slowly poured in the emulsifying agent soap lye of circulation shear equably, and carry out simultaneously hand mixing, shear and namely obtain emulsified bitumen after 2～3 minutes;
(3). in the described emulsified bitumen that makes, add described properties-correcting agent, make the high-elastic modified emulsifying asphalt of the present invention.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554930A (en) * | 2013-10-17 | 2014-02-05 | 中国石油化工股份有限公司 | High-concentration SBR (styrene butadiene rubber) modified emulsified asphalt and preparation method thereof |
| CN104530726A (en) * | 2014-12-09 | 2015-04-22 | 中国石油大学(华东) | Emulsified asphalt for micro-surfacing and preparation method of emulsified asphalt |
| CN105001786A (en) * | 2015-08-11 | 2015-10-28 | 山东大山路桥工程有限公司 | Dual modified emulsified asphalt and preparation method thereof |
| WO2016099238A1 (en) * | 2014-12-19 | 2016-06-23 | Dynasol Elastómeros, S.A. De C.V. | Sbs latex for use in the modification of concrete |
| CN105968834A (en) * | 2016-05-11 | 2016-09-28 | 河南师范大学 | High-softening-point emulsified asphalt and preparing method and application thereof |
| CN109233309A (en) * | 2018-08-30 | 2019-01-18 | 沈阳市沈北新区路佳庆环保型沥青冷拌技术咨询中心 | A kind of environment-friendly type cold mixing modified emulsifying asphalt |
-
2013
- 2013-01-06 CN CN 201310003324 patent/CN103030983A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554930A (en) * | 2013-10-17 | 2014-02-05 | 中国石油化工股份有限公司 | High-concentration SBR (styrene butadiene rubber) modified emulsified asphalt and preparation method thereof |
| CN103554930B (en) * | 2013-10-17 | 2016-10-19 | 中国石油化工股份有限公司 | A kind of high concentration SBR modified emulsifying asphalt and preparation method thereof |
| CN104530726A (en) * | 2014-12-09 | 2015-04-22 | 中国石油大学(华东) | Emulsified asphalt for micro-surfacing and preparation method of emulsified asphalt |
| CN104530726B (en) * | 2014-12-09 | 2017-05-03 | 中国石油大学(华东) | Emulsified asphalt for micro-surfacing and preparation method of emulsified asphalt |
| WO2016099238A1 (en) * | 2014-12-19 | 2016-06-23 | Dynasol Elastómeros, S.A. De C.V. | Sbs latex for use in the modification of concrete |
| CN105001786A (en) * | 2015-08-11 | 2015-10-28 | 山东大山路桥工程有限公司 | Dual modified emulsified asphalt and preparation method thereof |
| CN105968834A (en) * | 2016-05-11 | 2016-09-28 | 河南师范大学 | High-softening-point emulsified asphalt and preparing method and application thereof |
| CN109233309A (en) * | 2018-08-30 | 2019-01-18 | 沈阳市沈北新区路佳庆环保型沥青冷拌技术咨询中心 | A kind of environment-friendly type cold mixing modified emulsifying asphalt |
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Inventor after: Zhan Chenggen Inventor after: Wang Min Inventor after: Chen Lidong Inventor after: Hao Zengheng Inventor after: Hu Deyong Inventor after: Gao Bo Inventor after: Huang Lei Inventor after: Wu Wenjun Inventor before: Zhan Chenggen Inventor before: Wang Min Inventor before: Hao Zengheng Inventor before: Hu Deyong Inventor before: Gao Bo Inventor before: Huang Lei Inventor before: Wu Wenjun |
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Free format text: CORRECT: INVENTOR; FROM: ZHAN CHENGGEN WANG MIN HAO ZENGHENG HU DEYONG GAO BO HUANG LEI WU WENJUN TO: ZHAN CHENGGEN WANG MIN CHEN LIDONG HAO ZENGHENG HU DEYONG GAO BO HUANG LEI WU WENJUN |
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Application publication date: 20130410 |