CN101974235A - Wide-scope modified asphalt and preparation method thereof - Google Patents
Wide-scope modified asphalt and preparation method thereof Download PDFInfo
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- CN101974235A CN101974235A CN 201010522786 CN201010522786A CN101974235A CN 101974235 A CN101974235 A CN 101974235A CN 201010522786 CN201010522786 CN 201010522786 CN 201010522786 A CN201010522786 A CN 201010522786A CN 101974235 A CN101974235 A CN 101974235A
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Abstract
The invention relates to modified asphalt for road repairing and building, in particular to wide-scope modified asphalt and a preparation method thereof. The wide-scope modified asphalt is prepared by a method comprising the following steps: (1) taking 91-95 weight parts of hot asphalt at the temperature of 130-140DEG C as the main raw material; (2) taking 2-4 weight parts of powder butadiene styrene rubber as a first modifier; and (3) taking 3-5 weight parts of Tissuemat E as a second modifier, and mixing the components and preparing into the wide-scope modified asphalt. The wide-scope modified asphalt in the invention has high-temperature stability which is indicated by the softening point larger than 70DEG C and low temperature flexibility which is indicated by the ductility at 5DEG C larger than 150cm, as well as high bonding strength of 0.6MPa and simple production process, and is an asphalt product being convenient for application and dissemination.
Description
Technical field
The modified asphalt material that the present invention relates to repair the roads and build the road is specifically related to a kind of wide territory modifying asphalt and preparation preparation method thereof.
Background technology
In the past, the binding agent that road bedding is used mainly used place mat straight-run pitch.Yet, along with the volume of traffic increases, the rut impression that causes owing to flowing, crackle etc. are significantly, the measure that this is taked is to use modifying asphalt, pitch is as a kind of high-molecular hydrocarbons of complexity, under certain temperature and loading action, show as typical bullet one a sticking plasticity, and under high temperature and uviolizing, can produce catabiosis.Therefore the main purpose that adds properties-correcting agent is exactly to improve asphalt pavement performance at high temperature, improves the performance of aspects such as its anti-rut, antifatigue, anti-aging and opposing cold cracking.
At present, the domestic polymkeric substance kind that is used for asphalt modification is various, and conclusion is got up, and is broadly divided into three types:
(1) modified rubber class: as natural rubber (NR), styrene-butadiene rubber(SBR) (SBR), chloroprene rubber (cR), divinyl rubber (BR), ethylene-propylene rubber(EPR) (EPDM), waste and old doughnut etc.;
(2) thermoplastic elastomer: as styrene-butadiene one styrene block copolymer (SBS), vinylbenzene one different diene one styrene block copolymer (SIS);
(3) resene: comprise thermoplastic resin and thermosetting resin.The former has polyethylene (PE), ethene one acetic acid, one ethylene copolymer (EvA), poly-second chlorine alkene (PVC).
(4) adopt the method for physics to realize polymkeric substance to the bituminous modification, as heated and stirred, shearing, colloidal mill etc., though the method for physically modified increases the bituminous performance, over-all properties is not still improved at all.
Because SBS costs an arm and a leg and the situ production required equipment is huge and operation very bothers, cause the on the high side of modified bitumen product in addition, do not have price advantage, be unfavorable for the marketing application.Therefore, press for adopt chemical modification method and optional price ratio preferably properties-correcting agent come road bitumen is carried out modification.Especially wide territory modifying asphalt, because traditional modifying asphalt (JTG F40-2004), high low temperature and cohesive strength index are lower, and possessing high-temperature stability (index: softening temperature is greater than 60 ℃) and low temperature flexibility (index: 5 ℃ of ductilities are greater than 150cm) simultaneously, cohesive strength height (0.6MPa) does not also have a kind of modifying asphalt that can use practice of construction at present.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art and a kind of high-temperature stability and low temperature flexibility are provided, and the cohesive strength height, the simple wide territory of production technique modifying asphalt and preparation method thereof.
The object of the present invention is achieved like this: a kind of wide territory modifying asphalt, (1) are that 130-140 ℃ heated bitumen with the 91-95 parts by weight is as main raw material; (2) be that Powdered styrene-butadiene rubber(SBR) with the 2-4 parts by weight is as first properties-correcting agent; (3) be polyethylene wax with the 3-5 parts by weight as second properties-correcting agent, above-mentioned each component is made wide territory modifying asphalt after mixing.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with the 2-4 parts by weight joins in 130-140 ℃ the heated bitumen of 91-95 parts by weight, makes height through shearing and prolongs modifying asphalt;
2) polyethylene wax of 3-5 parts by weight is joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
The present invention has following advantage:
Use the reason of polyethylene wax: polyethylene wax is in saturated part that is dissolved in very easily at a terrific speed in the pitch, these components mainly comprise: the saturates of straight chain and branched chain aliphatic hydrocarbons class, alkyl naphthene and some waxs and non-wax, the existence of these materials influences the major cause of asphalt high-temperature stability just.Polyethylene wax at high temperature adsorbs and dissolves these saturate, forms stable solution and does not emanate.Because polyethylene wax has high melt point, thereby effectively raises the bituminous high-temperature stability.What influence the bituminous low-temperature performance mainly is polar molecule in the pitch, and these materials with polyethylene wax directly relation do not take place, thereby polyethylene wax can not influence the bituminous low-temperature performance.Because the molecular characterization of the uniqueness of polyethylene wax, feasible pitch with the polyethylene wax modification has the viscosity more much higher than matrix pitch at 60 ℃, and be to have the viscosity lower than matrix pitch at 135 ℃, this point is unique in various asphalt modifiers, is having great significance aspect production, construction and the Pavement Performance of modifying asphalt.
Main advantage of the present invention is that production technique is simple, production engineering low-carbon (LC), environmental protection, pollution-free.The wide territory modifying asphalt of the present invention's preparation possesses high-temperature stability (index: softening temperature is greater than 70 ℃) and low temperature flexibility (index: 5 ℃ of ductilities are greater than 150cm) simultaneously, and cohesive strength height (0.6MPa).
Embodiment
Embodiment 1:
A kind of wide territory modifying asphalt, (1) are as main raw material with 91 130-140 ℃ heated bitumens that restrain; (2) be as first properties-correcting agent with the 4 Powdered styrene-butadiene rubber(SBR) that restrain; (3) be polyethylene waxs with 5 grams as second properties-correcting agent, will above-mentioned each component after mixing, make wide territory modifying asphalt.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with 4 grams joins in 130-140 ℃ the heated bitumen of 91 grams, makes height through shearing and prolongs modifying asphalt;
2) 5 polyethylene waxs that restrain are joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
Embodiment 2:
A kind of wide territory modifying asphalt, (1) are as main raw material with 95 130-140 ℃ heated bitumens that restrain; (2) be as first properties-correcting agent with the 2 Powdered styrene-butadiene rubber(SBR) that restrain; (3) be polyethylene waxs with 3 grams as second properties-correcting agent, will above-mentioned each component after mixing, make wide territory modifying asphalt.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with 2 grams joins in 130-140 ℃ the heated bitumen of 95 grams, makes height through shearing and prolongs modifying asphalt;
2) 3 polyethylene waxs that restrain are joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
Embodiment 3:
A kind of wide territory modifying asphalt, (1) are as main raw material with 92 130-140 ℃ heated bitumens that restrain; (2) be as first properties-correcting agent with the 3.5 Powdered styrene-butadiene rubber(SBR) that restrain; (3) be polyethylene waxs with 4.5 grams as second properties-correcting agent, will above-mentioned each component after mixing, make wide territory modifying asphalt.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with 3.5 grams joins in 130-140 ℃ the heated bitumen of 92 grams, makes height through shearing and prolongs modifying asphalt;
2) 4.5 polyethylene waxs that restrain are joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
Embodiment 4:
A kind of wide territory modifying asphalt, (1) are as main raw material with 93 130-140 ℃ heated bitumens that restrain; (2) be as first properties-correcting agent with the 3 Powdered styrene-butadiene rubber(SBR) that restrain; (3) be polyethylene waxs with 4 grams as second properties-correcting agent, will above-mentioned each component after mixing, make wide territory modifying asphalt.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with 3 grams joins in 130-140 ℃ the heated bitumen of 93 grams, makes height through shearing and prolongs modifying asphalt;
2) 4 polyethylene waxs that restrain are joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
Embodiment 5:
A kind of wide territory modifying asphalt, (1) are as main raw material with 94 130-140 ℃ heated bitumens that restrain; (2) be as first properties-correcting agent with the 2.5 Powdered styrene-butadiene rubber(SBR) that restrain; (3) be polyethylene waxs with 3.5 grams as second properties-correcting agent, will above-mentioned each component after mixing, make wide territory modifying asphalt.
The wide territory of this kind modified asphalt preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with 2.5 grams joins in 130-140 ℃ the heated bitumen of 94 grams, makes height through shearing and prolongs modifying asphalt;
2) 3.5 polyethylene waxs that restrain are joined height and prolong in the modifying asphalt, makes wide territory modifying asphalt through stirring.
Claims (2)
1. wide territory modifying asphalt is characterized in that: (1) is that 130-140 ℃ heated bitumen with the 91-95 parts by weight is as main raw material; (2) be that Powdered styrene-butadiene rubber(SBR) with the 2-4 parts by weight is as first properties-correcting agent; (3) be polyethylene wax with the 3-5 parts by weight as second properties-correcting agent, above-mentioned each component is made wide territory modifying asphalt after mixing.
2. wide territory modified asphalt preparation method, it is characterized in that: its preparation method is as follows:
1) the pulverous styrene-butadiene rubber(SBR) with the 2-4 parts by weight joins in 130-140 ℃ the heated bitumen of 91-95 parts by weight, makes height through shearing and prolongs modifying asphalt;
2) polyethylene wax of 3-5 parts by weight is joined height and prolong in the modifying asphalt, make wide territory and change part pitch through stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522786 CN101974235A (en) | 2010-10-28 | 2010-10-28 | Wide-scope modified asphalt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522786 CN101974235A (en) | 2010-10-28 | 2010-10-28 | Wide-scope modified asphalt and preparation method thereof |
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| CN101974235A true CN101974235A (en) | 2011-02-16 |
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| CN 201010522786 Pending CN101974235A (en) | 2010-10-28 | 2010-10-28 | Wide-scope modified asphalt and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8658717B2 (en) | 2011-01-28 | 2014-02-25 | Honeywell International Inc. | Asphalt paving materials and methods for making the same |
| CN105733279A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Wide-range asphalt and preparation method thereof |
| CN110452618A (en) * | 2019-08-14 | 2019-11-15 | 广东万泓九鼎石油科技有限公司 | A kind of low-density non-cured rubber asphalt waterproof coating and preparation method thereof |
| US10584247B2 (en) | 2012-12-28 | 2020-03-10 | Honeywell International Inc. | Methods for reducing asphalt pavement thickness |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417262A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Stable polymer-asphalt comosition |
| US6884831B1 (en) * | 2002-12-27 | 2005-04-26 | Mohammed Memon | Modified asphalt with partitioning agent |
| CN1765996A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | A polymer-modified asphalt binder for open-graded pavement and its preparation method |
| CN1952010A (en) * | 2005-10-20 | 2007-04-25 | 上海群康沥青科技有限公司 | Construction performance modified composite modified asphalt |
-
2010
- 2010-10-28 CN CN 201010522786 patent/CN101974235A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417262A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Stable polymer-asphalt comosition |
| US6884831B1 (en) * | 2002-12-27 | 2005-04-26 | Mohammed Memon | Modified asphalt with partitioning agent |
| CN1765996A (en) * | 2004-10-29 | 2006-05-03 | 中国石油化工股份有限公司 | A polymer-modified asphalt binder for open-graded pavement and its preparation method |
| CN1952010A (en) * | 2005-10-20 | 2007-04-25 | 上海群康沥青科技有限公司 | Construction performance modified composite modified asphalt |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8658717B2 (en) | 2011-01-28 | 2014-02-25 | Honeywell International Inc. | Asphalt paving materials and methods for making the same |
| US10584247B2 (en) | 2012-12-28 | 2020-03-10 | Honeywell International Inc. | Methods for reducing asphalt pavement thickness |
| CN105733279A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Wide-range asphalt and preparation method thereof |
| CN105733279B (en) * | 2014-12-11 | 2019-03-12 | 中国石油天然气股份有限公司 | Wide-range asphalt and preparation method thereof |
| CN110452618A (en) * | 2019-08-14 | 2019-11-15 | 广东万泓九鼎石油科技有限公司 | A kind of low-density non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN110452618B (en) * | 2019-08-14 | 2021-09-03 | 广东万泓九鼎石油科技有限公司 | Low-density non-cured rubber asphalt waterproof coating and preparation method thereof |
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Application publication date: 20110216 |