CN102826792B - Preparation method of LB cold patch material - Google Patents
Preparation method of LB cold patch material Download PDFInfo
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- CN102826792B CN102826792B CN201210336931.XA CN201210336931A CN102826792B CN 102826792 B CN102826792 B CN 102826792B CN 201210336931 A CN201210336931 A CN 201210336931A CN 102826792 B CN102826792 B CN 102826792B
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Abstract
The invention belongs to the field of asphalt preparation technology and provides a preparation method of LB cold patch material. The method comprises the following steps: according to a preset weight ratio, preparing modified emulsified asphalt; heating aggregates which meet requirements to 108-130 DEG C, and adding the heated aggregates into a mixing vat; adding 70% of the prepared modified emulsified asphalt into the mixing vat and mixing for 400-500 seconds; adding the remaining 30% of the prepared modified emulsified asphalt into the mixing bowl and mixing for 30-90 seconds, and obtaining the LB cold patch material. According to embodiments of the invention, the cold patch material which can be stored at room temperature for a long time and meets the regulatory requirements, is prepared by means of mixing the emulsified asphalt, and has high strength and long service life.
Description
technical field
The invention belongs to pitch preparing technical field, relate in particular to a kind of LB cold-repairing material preparation method.
background technology
Needed cold-repairing material in maintenance of highway pavement, after the general asphalt heating by common heavy friendship dissolves, heating organic solvent and other auxiliary agents, make it present at normal temperatures liquid state, with this liquid fluxed asphalt and aggregate blending, the cold-repairing material of formation, its intensity difference, life-span is short, general 5～7 days.
summary of the invention
The object of the present invention is to provide a kind of LB cold-repairing material preparation method, be intended to solve the short problem of cold-repairing material intensity difference, life-span that prior art provides.
The present invention is achieved in that a kind of LB cold-repairing material preparation method, and described method comprises the steps:
According to default part by weight, configuration modified version emulsified bitumen;
Satisfactory gathering materials is heated to 108 ~ 130 ℃, joins and mix in cylinder;
By 70% of the modified version Asphalt emulsion content preparing, join to mix in cylinder and stir 400 ~ 500 seconds;
Described in the residue of the emulsified bitumen preparing 30% amount is joined, mix in cylinder and stir 30 ~ 90 seconds, obtain LB cold-repairing material.
As a kind of improved plan, described according to default part by weight, the step of configuration modified version emulsified bitumen specifically comprises the steps:
After water is mixed with stablizer, stirring and dissolving, after then cats product, non-ionic surface active being mixed in proportion, fully grinding and forms soap lye body through mulser;
After properties-correcting agent 4303,611, methylene dichloride, toluene are mixed in proportion, stirring and dissolving becomes thick liquid properties-correcting agent, standby;
Respectively heavy traffic paving asphalt is heated to 100 ℃ ~ 170 ℃, soap lye body is heated to 45 ℃ ~ 80 ℃, and thick liquid properties-correcting agent is heated to 45 ℃ ~ 60 ℃;
Soap lye body and heavy traffic paving asphalt are ground and formed the uniform and stable thing that is suspended by colloidal mill;
The properties-correcting agent of heating is joined and is suspended in thing, and overground grinding, being slowly cooled to normal temperature storage under whipped state, obtains modified emulsifying asphalt.
As a kind of improved plan, described cats product is one or more in hyperbranched Gemini cats product, or in 12-docosane base class ammonium chloride one or more.
As a kind of improved plan, described nonionogenic tenside is one or more in Soxylat A 25-7.
As a kind of improved plan, described stablizer is carboxy-propyl cellulose.
As a kind of improved plan, described properties-correcting agent is: 4303 or 411 or 1502, the thing that dissolves each other of methylene dichloride and toluene.
As a kind of improved plan, the component of described modified emulsifying asphalt specifically comprises: heavy traffic paving asphalt: 50%-76%, cats product: 0.4%-5%, nonionogenic tenside: 0.5%-3%, stablizer: 0.2-0.9%, water: 30%-50%, described components based on weight percentage is calculated.
In embodiments of the present invention, by emulsified bitumen mixing, go out to have under normal temperature state, the cold-repairing material that meets code requirement that can store for a long time, its intensity is large, and the life-span is long.
accompanying drawing explanation
Fig. 1 is the LB cold-repairing material preparation method's that provides of the embodiment of the present invention the artwork of realizing;
Fig. 2 be the emulsified bitumen that provides of the embodiment of the present invention preparation method realize artwork.
embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows LB cold-repairing material preparation method's that the embodiment of the present invention provides the artwork of realizing, and its concrete step is as described below:
Step S101: according to default part by weight, configuration modified version emulsified bitumen;
Step S102: satisfactory gathering materials is heated to 108 ~ 130 ℃, joins and mix in cylinder;
Step S103: join to mix in cylinder by 70% of the modified version Asphalt emulsion content preparing and stir 400 ~ 500 seconds;
Step S104: mix in cylinder and stir 30 ~ 90 seconds described in the residue of the emulsified bitumen preparing 30% amount is joined, obtain LB cold-repairing material.
In embodiments of the present invention, Fig. 2 show the emulsified bitumen that the embodiment of the present invention provides preparation method realize technique, its concrete step is as described below:
Step S201: after water is mixed with stablizer, stirring and dissolving, after then cats product, non-ionic surface active being mixed in proportion, fully grinding and form soap lye body through mulser.
Step S202: after properties-correcting agent 4303,611, methylene dichloride, toluene are mixed in proportion, stirring and dissolving becomes thick liquid properties-correcting agent, standby.
Step S203: respectively heavy traffic paving asphalt is heated to 100 ℃ ~ 170 ℃, soap lye body is heated to 45 ℃ ~ 80 ℃, and thick liquid properties-correcting agent is heated to 45 ℃ ~ 60 ℃.
Step S204: soap lye body and heavy traffic paving asphalt are ground and formed the uniform and stable thing that is suspended by colloidal mill.
Step S205: the properties-correcting agent of heating is joined and is suspended in thing, and overground grinding, being slowly cooled to normal temperature storage under whipped state, obtains modified emulsifying asphalt.
The sticky toughness of modified emulsifying asphalt of preparing by this preparation method significantly surpasses high-viscosity high-elasticity modifying asphalt, has greatly improved pavement life.
In embodiments of the present invention, the component of above-mentioned modified emulsifying asphalt specifically comprises: heavy traffic paving asphalt: 50%-76%, cats product: 0.4%-5%, nonionogenic tenside: 0.5%-3%, stablizer: 0.2-0.9%, water: 30%-50%, described components based on weight percentage is calculated.
Wherein, the concrete reference substance of above-mentioned each component is as described below:
Cats product is one or more in hyperbranched Gemini cats product, or in 12-docosane base class ammonium chloride one or more;
Nonionogenic tenside is one or more in Soxylat A 25-7;
Stablizer is carboxy-propyl cellulose;
Described properties-correcting agent is 4303 or 411 or 1502, the thing that dissolves each other of methylene dichloride and toluene.
And above-mentioned heavy traffic paving asphalt meets the petroleum pitch of JTG F40-2004 standard-required.
In embodiments of the present invention, by the physical index of the emulsified bitumen of said components configuration, be: 5 ℃ of ductilities: be greater than 50 centimetres; Softening temperature: be greater than that 80 ℃, penetration degree are less than heavy traffic paving asphalt, recovery of elasticity is greater than 90%; Adhesivity: 5 grades; Sticky toughness: be greater than 19N.m.
In embodiments of the present invention, modified version half warm emulsion asphalt LB cold-repairing material, has solved pitch diluted material and has carried out mixing cold-repairing material as sizing agent, solved thus cost high, pollute fluxed asphalt cold-repairing material large, poor performance.Because Preparation equipment is simple, can be with using with doing, therefore the project to little quantities, also can be used.
As a concrete example of the present invention, followingly provide three examples and describe:
Example one:
Cold-repairing material component: by weight percentage, emulsified bitumen: 8.4%, properties-correcting agent: 1.2%, gather materials: 90.4%.
Preparation process:
1), by water 1800g and tetradecyl trimethyl ammonium chloride 38g, fatty alcohol oxygen Vinyl Ether 16g, after being mixed in proportion, is thoroughly mixed to form soap lye body through mulser;
2) by water 30g and Xylo-Mucine 7g mix and blend, fully dissolve, and with 1) mix;
3) heavy traffic paving asphalt 3600g is heated to 130 ℃, step 2) liquid heat to 50 ℃ that forms; By heavy traffic paving asphalt, step 2) liquid that forms grinds and formed the uniform and stable thing that is suspended by colloidal mill, adds properties-correcting agent 180g after colloidal mill grinding, is cooled to normal temperature storage;
4) 5000g that gathers materials that meets the LB type grating of JTG F40-2004 standard-required is heated to 108-130 ℃, joins and mix in cylinder, then the modified version emulsified bitumen 224g preparing is joined to mix in cylinder and stir 400 seconds;
5) emulsified bitumen 96g is joined to mixing in cylinder of above-mentioned compound and stir 50 seconds, Marshall Test is done in discharging.
Example two:
Cold-repairing material preparation process:
1), by water 1500g and octadecyl trimethyl ammonium chloride 33g, fatty alcohol-polyoxyethylene ether 18g, after being mixed in proportion, is thoroughly mixed to form soap lye body through mulser;
2) by water 30 and Xylo-Mucine 12 mix and blends, fully dissolve, and with 1) mix;
3) heavy traffic paving asphalt 3200g is heated to 130 ℃, step 2) liquid heat to 50 ℃ that forms; By heavy traffic paving asphalt, step 2) liquid that forms grinds and formed the uniform and stable thing that is suspended by colloidal mill, adds properties-correcting agent 330g after colloidal mill grinding, is cooled to normal temperature storage;
4) 5000g that gathers materials that meets JTG F40-2004 standard-required is heated to 108-130 ℃, joins and mix in cylinder, then the modified version emulsified bitumen 230g preparing is joined to mix in cylinder and stir 400 seconds;
5) half warm mix modification emulsified bitumen 100g is joined to mixing in cylinder of above-mentioned compound and stir 50 seconds, Marshall Test is done in discharging.
Example three:
Preparation process:
1), by water 1300g and palmityl trimethyl ammonium chloride 45g, fatty alcohol-polyoxyethylene ether 12g, after being mixed in proportion, is thoroughly mixed to form soap lye body through mulser;
2) by water 30 and Xylo-Mucine 20g mix and blend, fully dissolve, and with 1) mix;
3) heavy traffic paving asphalt 3200g is heated to 130 ℃, step 2) liquid heat to 50 ℃ that forms; By heavy traffic paving asphalt, step 2) liquid that forms grinds and formed the uniform and stable thing that is suspended by colloidal mill, adds properties-correcting agent 280g after colloidal mill grinding, is cooled to normal temperature storage;
4) 5000g that gathers materials that meets JTG F40-2004 standard-required is heated to 108 ~ 130 ℃, joins and mix in cylinder, then the modified version emulsified bitumen 240g preparing is joined to mix in cylinder and stir 300 seconds;
5) above-mentioned emulsified bitumen 125g is joined to mixing in cylinder of above-mentioned compound and stir 30 seconds, Marshall Test is done in discharging.
Test detected result is as follows:
| Test subject | Marshall stability |
| Embodiment 1 | 4.9KN |
| Embodiment 2 | 5.4KN |
| Embodiment 3 | 6KN |
In embodiments of the present invention, by emulsified bitumen mixing, go out to have under normal temperature state, the cold-repairing material that meets code requirement that can store for a long time, its intensity is large, and the life-span is long.
Meanwhile, modified version half warm emulsion asphalt LB cold-repairing material, has solved pitch diluted material and has carried out mixing cold-repairing material as sizing agent, solved thus cost high, pollute fluxed asphalt cold-repairing material large, poor performance.Because Preparation equipment is simple, can be with using with doing, therefore the project to little quantities, also can be used.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a LB cold-repairing material preparation method, is characterized in that, described method comprises the steps:
According to default part by weight, configuration modified version emulsified bitumen;
Satisfactory gathering materials is heated to 108 ~ 130 ℃, joins and mix in cylinder;
By 70% of the modified version Asphalt emulsion content preparing, join to mix in cylinder and stir 400 ~ 500 seconds;
Described in the residue of the emulsified bitumen preparing 30% amount is joined, mix in cylinder and stir 30 ~ 90 seconds, obtain LB cold-repairing material; And
Described according to default part by weight, the step of configuration modified version emulsified bitumen specifically comprises the steps:
After water is mixed with stablizer, stirring and dissolving, after then cats product, nonionogenic tenside being mixed in proportion, fully grinding and forms soap lye body through mulser;
After properties-correcting agent 4303,611, methylene dichloride, toluene are mixed in proportion, stirring and dissolving becomes thick liquid properties-correcting agent, standby;
Respectively heavy traffic paving asphalt is heated to 100 ℃ ~ 170 ℃, soap lye body is heated to 45 ℃ ~ 80 ℃, and thick liquid properties-correcting agent is heated to 45 ℃ ~ 60 ℃;
Soap lye body and heavy traffic paving asphalt are ground and formed the uniform and stable thing that is suspended by colloidal mill;
The properties-correcting agent of heating is joined and is suspended in thing, and overground grinding, being slowly cooled to normal temperature storage under whipped state, obtains modified emulsifying asphalt.
2. LB cold-repairing material preparation method according to claim 1, is characterized in that, described cats product is one or more in hyperbranched Gemini cats product, or in 12-docosane base class ammonium chloride one or more.
3. LB cold-repairing material preparation method according to claim 1, is characterized in that, described nonionogenic tenside is one or more in Soxylat A 25-7.
4. LB cold-repairing material preparation method according to claim 1, is characterized in that, described stablizer is carboxy-propyl cellulose.
5. LB cold-repairing material preparation method according to claim 1, it is characterized in that, the component of described modified emulsifying asphalt specifically comprises: heavy traffic paving asphalt: 50%-76%, cats product: 0.4%-5%, nonionogenic tenside: 0.5%-3%, stablizer: 0.2-0.9%, water: 30%-50%, described components based on weight percentage is calculated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210336931.XA CN102826792B (en) | 2012-09-13 | 2012-09-13 | Preparation method of LB cold patch material |
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| CN201210336931.XA CN102826792B (en) | 2012-09-13 | 2012-09-13 | Preparation method of LB cold patch material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106519717A (en) * | 2016-11-07 | 2017-03-22 | 六安市交通公路实业有限公司 | Preparation methods of high-activity cold patching materials |
| CN106746929B (en) * | 2017-01-01 | 2019-03-29 | 山西省交通科学研究院 | A kind of self-heating type cold asphalt mixture and preparation method thereof |
| CN108467700A (en) * | 2018-03-29 | 2018-08-31 | 宁夏睿泰天成新材料科技有限公司 | A kind of SMC pitches cold-patch agent and preparation method thereof |
| CN110171942B (en) * | 2019-07-01 | 2021-07-13 | 沈阳建筑大学 | Moisture-curing reaction type asphalt pavement cold-patch material and preparation method thereof |
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| CN102190459B (en) * | 2010-03-10 | 2013-07-03 | 中国石油天然气股份有限公司 | Storable emulsified asphalt cold-patch material and preparation method and application thereof |
| CN102276188A (en) * | 2011-06-15 | 2011-12-14 | 江苏省交通规划设计院股份有限公司 | Bituminous pavement cold patch material, and production method thereof |
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