CN102051055B - Method for preparing penetrated emulsified asphalt - Google Patents
Method for preparing penetrated emulsified asphalt Download PDFInfo
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- CN102051055B CN102051055B CN 200910188101 CN200910188101A CN102051055B CN 102051055 B CN102051055 B CN 102051055B CN 200910188101 CN200910188101 CN 200910188101 CN 200910188101 A CN200910188101 A CN 200910188101A CN 102051055 B CN102051055 B CN 102051055B
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Abstract
The invention discloses a method for preparing penetrated emulsified asphalt. The method comprises the following steps of: (1) preparing aqueous solution by using an asphalt emulsifier and a stabilizer; (2) heating and melting asphalt and/or residual oil, and mixing the melt and a diluent; (3) adding cationic styrene butadiene rubber (SBR) latex to increase the adhesiveness of residues; and (4) emulsifying partial materials in the steps (1), (2) and (3) through a colloid mill with a larger mill clearance, filling obtained products into a finished product tank, turning down the mill clearance of the colloid mill, emulsifying the remaining part of the materials through the colloid mill, filling obtain products into the finished product tank, and uniformly mixing the obtained products and the previous products to obtain a final finished product. By the method, an emulsifying machine meets requirements on different mill clearances, equipment cost is saved compared with that of two colloid mills; and the permeability of the prepared high-permeable penetrated emulsified asphalt is improved, and the indexes such as ductility, sticky toughness and the like are improved at the same time. The penetrated emulsified asphalt can be used in the fields of penetrated oil, cold regeneration of asphalt pavements, slurry sealing and the like.
Description
Technical field
The present invention relates to a kind of preparation method of emulsified bitumen, particularly relate to a kind of preparation method of high-permeability prime coating emulsified asphalt of cheapness.
Background technology
That the saturating layer that is positioned at the Asphalt Pavement Base surface plays is fixed, stable, waterproof, connect the effect of each road structure layer, and quality and the life-span of road pavement are most important.The degree of depth that priming oil infiltrates has determined that can oil mat and non-bituminous material basic unit good combination.Priming oil commonly used has three kinds of coal tar, fluxed asphalt and emulsified bitumens.The coal tar perviousness is strong but poisonous, substantially need not both at home and abroad; Fluxed asphalt permeates, but cost is high, simultaneously too much can be to environment because containing oil content, there is hidden danger in the impact of the long-term behaviour of road; The emulsified bitumen cost is low, can not cause larger pollution to environment, and cost is also cheaply a lot of than fluxed asphalt, has very wide market outlook.At present existing layer is with the deficiency of emulsified bitumen ubiquity poor permeability, mainly be because: 1. the infiltration of the larger obstruction pitch of the viscosity of emulsified bitumen droplet; 2. the emulsified bitumen de-emulsification speed is fast, and emulsified bitumen does not just also have when fully infiltration is not gone down breakdown of emulsion, forms the outermost layer of skin that can be sticked up by material mover and paver in substrate surface.Although in emulsified bitumen, add the penetrating quality that the thinners such as gasoline, kerosene can increase emulsified bitumen, will bring cost to increase considerably and the problem such as environmental pollution.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of preparation method of cheap high-permeability prime coating emulsified asphalt, improve the use properties of product from the preparation method, in the infiltrative while of improving emulsified asphalt product, can also improve the indexs such as the ductility of emulsified asphalt product and sticking toughness, the cost of emulsified asphalt product is lower simultaneously, does not have special environmental problem.
The preparation method of the saturating coating emulsified asphalt of the present invention comprises following content:
(1) asphalt emulsifier and stablizer are made into the aqueous solution;
(2) with pitch and/or residual oil heat fused and mixing diluents;
(3) add the tackiness that cationic SBR latex increases residue;
(4) 30%～90% of above-mentioned (1), (2) and (3) middle weight of material by the mill larger colloidal mill emulsification in gap, and products obtained therefrom enters finished pot; Then the mill gap of colloidal mill is turned down, the remainder of above-mentioned material again by this colloidal mill emulsification, is then entered finished pot and evenly namely gets final finished with Product mix before.
The gap width of the larger colloidal mill in described gap is 7～18 μ m, and the gap width of the colloidal mill that the gap is less is 20%～70% of the larger colloidal mill gap width in gap.
The component of high-permeability prime coating emulsified asphalt comprises in weight percentage:
Pitch and/or residual oil: 35%～45%
Thinner: 1%～15%
Asphalt emulsifier: 0.8%～2.0%
Water: 45%～50%
Stablizer: 0.1%～0.2%
Cationic SBR latex properties-correcting agent: 0.1%～2%.
Among the high-permeability prime coating emulsified asphalt preparation method of the present invention, pitch or residual oil are that common process obtains, and the specific performance index can be determined according to requirements.
Among the high-permeability prime coating emulsified asphalt preparation method of the present invention, used thinner is that lube oil furfural refining is extracted one or more in oil, FCC slurry oil, lipid acid tankage, the refining of petroleum underpressure distillation side line oil and other industrial byproducts out, these materials than gasoline, kerosene, diesel-fuel price is cheap, volatility is little, thinner volatilizees hardly behind the emulsified bitumen breakdown of emulsion, and environment is not polluted.
Among the high-permeability prime coating emulsified asphalt preparation method of the present invention, used emulsifying agent is identical with the asphalt emulsifier that use in conventional emulsified bitumen field, such as cation asphalt emulgent, cloudy sub one or more in asphalt emulsifier, nonionic asphalt emulsifier etc.Concrete as commodity asphalt emulsifier Jiangsu gold raise gold that the chemical plant produces raise the circling in the air 1831, circle in the air 1631 of (JY)-R3, JY-R4, JY-R5, the production of the chemical industry that circles in the air (Zhangjiagang) company limited, stearylamine, cetylamine and amino dodecane etc. one or more.The composite use of preferred several emulsifying agent, account for 50%～90% such as among JY-R3, JY-R4, the JY-R5 one or more, circle in the air 1831, circle in the air 1631, in the stearylamine, cetylamine, amino dodecane one or more 10%～50%, composite use has more outstanding emulsifying effectiveness.
Among the high-permeability prime coating emulsified asphalt preparation method of the present invention, stablizer is emulsified bitumen field stablizer commonly used, such as CaCl
2, NH
4Cl, AlCl
3, Al
2(SO
4)
3Deng in one or more.
This emulsified bitumen also can be used in the road engineering of Bituminous Pavement Cold Regeneration, slurry seal and little table place, palliative, soil fixation, track and walkway seal gum except using as priming oil.
In the high-permeability prime coating emulsified asphalt of the present invention, asphalt modifier cationic SBR latex properties-correcting agent is conventional products, and main character sees Table 1.
Among the high-permeability prime coating emulsified asphalt preparation method of the present invention, according to the specification of quality of emulsified asphalt product, can also add some some other additives, such as SBS asphalt modifier, Yatall MA etc.
The present invention take the viscosity that reduces emulsified bitumen, prolong emulsified bitumen de-emulsification speed as purpose, use suitable thinner, when enhancing product performance, reduce product price, and have the characteristics such as environmental friendliness.Select suitable emulsifying agent carry out composite, produced a kind of cheap, high-permeability prime coating emulsified asphalt by special process.This emulsified bitumen also can be used in the road engineering of Bituminous Pavement Cold Regeneration, slurry seal and little table place, palliative, soil fixation, track and walkway seal gum.Its characteristics are: 1. select suitable emulsifying agent to carry out composite, the type emulsified bitumen is split in preparation slowly, makes it have the sufficient time to infiltrate basic unit and not at substrate surface breakdown of emulsion skinning; 2. adopt special bimodal preparation technology, the viscosity of emulsified bitumen is descended greatly, be conducive to the infiltration of emulsified bitumen; 3. in preparation process, add cationic SBR latex, improve the asphalt performance behind the breakdown of emulsion, make it have good ductility and sticking toughness, better connect oil mat and basic unit; 4. the thinner that improves the pitch penetrating quality is that lube oil furfural refining is extracted the industry byproducts such as oil, FCC slurry oil, lipid acid tankage, decompression line oil out, cheaply is easy to get, and has reduced the cost of strong perviousness emulsified bitumen, is easy to the popularization of coating emulsified asphalt.
Description of drawings
Fig. 1 is a kind of concrete preparation method's schematic flow sheet of high-permeability prime coating emulsified asphalt of the present invention.
Embodiment
Listed embodiment is the purpose that further specifies, the material proportioning of emulsified bitumen is not limited in described in the embodiment, emulsifying agent and thinner type can be a kind of or whole in the described material, specifically according to unit in charge of construction the specification of quality of saturating coating emulsified asphalt are adjusted.
The below is as follows as example further specifies to produce the 500g intensive infiltration emulsified asphalt:
Embodiment 1:
Tahe lightweight residual oil 200g, lube oil furfural refining extract oil out and mix altogether 15g at 1: 1 with the FCC slurry oil, and emulsifying agent JYR3 mixes altogether 6g, CaCl with stearylamine in 10: 2 ratios
20.5g emulsifying agent and stablizer add water to 260g, cationic SBR latex 25g.Above-mentioned material 75% by shown in Figure 1 by the mill gap be the colloidal mill emulsification of 10 μ m, products obtained therefrom directly enters finished pot, the colloidal mill gap is adjusted into 5 μ m, all the other 25% materials are the colloidal mill emulsification of 5 μ m by the mill gap, then enter finished pot and evenly get product with Product mix before.The gained finished product meets the saturating layer of requirement with cationic emulsified bitumen of JTG F40-2004, and main character sees Table 2.
Embodiment 2:
Maoming 70# pitch 200g subtracts four lines and mixes altogether 40g at 1: 1 with the lipid acid tankage, and emulsifying agent JYR5 mixes altogether 8.25g, NH with 1631 in 10: 1 ratios
4Cl 1.0g adds water to 235g, cationic SBR latex 25g.Above-mentioned substance 50% by the mill gap be the colloidal mill emulsification of 15 μ m, products obtained therefrom directly enters finished pot; The colloidal mill gap is adjusted into 4 μ m, and all the other 50% materials are the colloidal mill emulsification of 4 μ m by the mill gap, then enter finished pot and evenly get product with Product mix before.The gained finished product meets the saturating layer of requirement with cationic emulsified bitumen of JTGF40-2004, and main character sees Table 2.
Table 1 modifying asphalt cationic SBR latex technical indicator
| Project name | Technical indicator |
| Outward appearance | Oyster white |
| Solid content (%) | 40±2 |
| The pH value | 2～3 |
| Density (g/cm 3) | 0.97～0.99 |
| Particle charge | + |
Table 2 emulsified asphalt product character
Claims (4)
1. the preparation method of a saturating coating emulsified asphalt is characterized in that comprising following content:
(1) asphalt emulsifier and stablizer are made into the aqueous solution;
(2) with pitch and/or residual oil heat fused and mixing diluents;
(3) add the tackiness that cationic SBR latex increases residue;
(4) 30%～90% of above-mentioned (1), (2) and (3) middle weight of material by the mill larger colloidal mill emulsification in gap, and products obtained therefrom enters finished pot; Then the mill gap of colloidal mill is turned down, the remainder of above-mentioned material again by this colloidal mill emulsification, is then entered finished pot and evenly namely gets final finished with Product mix before;
Wherein the component of coating emulsified asphalt comprises in weight percentage thoroughly:
2. in accordance with the method for claim 1, it is characterized in that: the gap width of the larger colloidal mill in described gap is 7～18 μ m, and the gap width of the colloidal mill that the gap is less is 20%～70% of the larger colloidal mill gap width in gap.
3. it is characterized in that in accordance with the method for claim 1: described thinner is that lube oil furfural refining is extracted one or more in oil, FCC slurry oil, lipid acid tankage and the refining of petroleum underpressure distillation side line oil out.
4. it is characterized in that in accordance with the method for claim 1: described stablizer is CaCl
2, NH
4Cl, AlCl
3And Al
2(SO
4)
3In one or more.
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| CN 200910188101 CN102051055B (en) | 2009-10-27 | 2009-10-27 | Method for preparing penetrated emulsified asphalt |
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| CN 200910188101 CN102051055B (en) | 2009-10-27 | 2009-10-27 | Method for preparing penetrated emulsified asphalt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504703A (en) * | 2011-09-28 | 2012-06-20 | 哈尔滨工业大学 | Condensed ice damage prevention functional protective material for asphalt pavement and preparation method thereof |
| CN102911506B (en) * | 2012-10-24 | 2016-01-20 | 长安大学 | Anion-modified emulsified bitumen of a kind of Thief zone and preparation method thereof |
| CN103554933B (en) * | 2013-10-21 | 2015-09-23 | 长安大学 | For the high-adhesion priming oil and preparation method thereof of cement stabilized macadam base |
| CN104761184A (en) * | 2014-03-25 | 2015-07-08 | 广西大学 | Special permeable and adhesive layer composite material for semi-rigid base |
| CN104629392A (en) * | 2015-03-06 | 2015-05-20 | 西安公路研究院 | Environment-friendly type high-permeability emulsified asphalt based on plant asphalt |
| CN106009739A (en) * | 2016-07-29 | 2016-10-12 | 中海沥青（泰州）有限责任公司 | Modified emulsified asphalt for ultrathin wearing layers and preparation method thereof |
| CN110283335A (en) * | 2019-06-24 | 2019-09-27 | 江苏瑞沃建设集团有限公司 | A kind of emulsified asphalt preparation method of low cost |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1730612A (en) * | 2005-08-10 | 2006-02-08 | 董建明 | Intensive infiltration emulsified asphalt and its preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730612A (en) * | 2005-08-10 | 2006-02-08 | 董建明 | Intensive infiltration emulsified asphalt and its preparation |
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