CN101824226A - Preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage - Google Patents
Preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage Download PDFInfo
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- CN101824226A CN101824226A CN 201010143820 CN201010143820A CN101824226A CN 101824226 A CN101824226 A CN 101824226A CN 201010143820 CN201010143820 CN 201010143820 CN 201010143820 A CN201010143820 A CN 201010143820A CN 101824226 A CN101824226 A CN 101824226A
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- rubber powder
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- modified asphalt
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Abstract
The invention discloses a preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage, which comprises the following steps of: firstly, using coupling agents, water and alcohol for preparing a coupling agent hydrolysis solution for carrying out pretreatment on the waste and oil tire rubber powder; and then, adding the rubber powder obtained after the pretreatment into hot substrate asphalt to be stirred for carrying out modification reaction. Through using the silane coupling agents for forming the crosslink merge between inorganic matters such as (white) carbon black and the like in the rubber powder and organic matters such as asphalt and the like, the invention improves the dispersing and heat storage stability of the waste rubber powder in the asphalt. At the same time, the recipe of the invention has simple ingredients, few additive types and simple technology, and is suitable for large-scale popularization and application.
Description
Technical field
The present invention relates to a kind of road bitumen material, be specifically related to the pretreated waste-tyre rubber-powder of a kind of usefulness and prepare modifying asphalt, obtain the good modifying asphalt of a kind of hot storage stability, belong to building material technical field.
Background technology
Domestic and international research and application practice show, appts of modified asphalt by utilizing waste tyre rubber powder not only can improve the pavement performance of pitch and asphalt, improve the using character and the weather resistance on road surface, and can reduce road traffic noise, reduce " black pollution " that junked tire brings.Thereby applying of appts of modified asphalt by utilizing waste tyre rubber powder has important engineering meaning and economy, environmental protection and social benefit.
But appts of modified asphalt by utilizing waste tyre rubber powder exists the technical barrier of hot storage stability difference, and this has not only influenced the stability of performance of modified bitumen, and has seriously restricted its applying in engineering construction.In order to address this problem, the main method of taking at present is to make the rubber powder degraded or add some compatilizers, thereby improves rubber powder and bituminous consistency, and rubber powder is dispersed in the pitch uniformly and stably.CN1441005A discloses a kind of production technology of desulfurization glue powder-modified asphalt, has promoted the consistency of each component in the rubber powder modified asphalt, handles but need in advance rubber powder to be carried out desulfurization, cause cost higher, and its additive cross-linking effect that adopts is limited.US5704971 discloses the preparation method that a kind of even rubber powder is produced asphalt modifier, this method is at first with hydrogen peroxide waste Crumb rubber to be carried out oxidation, make the vulcanized rubber powder hydroxyl more because of oxidation produces, then the rubber powder after the oxidation is joined in the pitch that contains a small amount of compatilizer, thereby make system stable.This complex technical process, and point out among the US5762700, use hydrogen peroxide can not make vulcanized rubber powder produce active group separately.Some bibliographical informations are crossed relevant rubber powder microwave degradation both at home and abroad, microbiological deterioration, or both combination technologies etc., but these technology are still immature, and also not obvious with the effect of asphalt grouting.
Summary of the invention
Order of the present invention is at the deficiencies in the prior art, the preparation method of the simple relatively appts of modified asphalt by utilizing waste tyre rubber powder of a kind of technology is provided, the modifying asphalt hot storage stability of this kind method preparation is good, and high-performance, low-temperature performance and temperature-sensitive excellent property, is suitable for producing in enormous quantities.
The technical scheme that the present invention takes is:
A kind of preparation method of appts of modified asphalt by utilizing waste tyre rubber powder of steady heat storage comprises the steps:
(1) pre-treatment of using rubber powder of waste tire: with coupling agent, water and alcohol preparation coupling agent hydrating solution, in the rubber powder of wearing into by junked tire, add an amount of coupling agent hydrating solution and stir, the rubber powder after stirring is dried in baking oven;
(2) matrix pitch modification: with matrix pitch 135 ℃ of-160 ℃ of following heat fused, the rubber powder that step (1) pre-treatment is obtained joins in the matrix pitch of heat, heat temperature raising is to 180-195 ℃ while stirring, continuously stirring (being total churning time) 45-60 minute.
The preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of above-mentioned steady heat storage, the mass ratio of the described coupling agent hydrating solution of step (1) consists of coupling agent: water: alcohol=1: 1～3: 6～20; Coupling agent accounts for the 0.5%-1.5% of rubber powder quality in the coupling agent hydrating solution; Above-mentioned coupling agent is a silane coupling agent; Described bake out temperature is 100-110 ℃.
Preferred proportion is a coupling agent in step (1) the coupling agent hydrating solution: water: alcohol=1: 1: 20.
The coupling agent hydrolysis time is about 2 hours.
Rubber powder can be selected for use by various trucies, car junked tire and grind the rubber powder that processes, and its fineness general requirement is selected the 40-200 order for use.Ethanol (alcohol) can be selected commercially available industrial spirit for use.Coupling agent can be commercially available silane coupling agents such as KH550.
The add-on of the described rubber powder of above-mentioned steps (2) is the 10%-20% of matrix pitch quality.
Matrix pitch can be distillation, oxidized bitumen, also can be the different kinds of roads petroleum pitch such as mediation pitch that mediation technology obtains, its label can be No. 50, No. 70 or No. 90, and leading indicator is: (25 ℃ of penetration degrees, 0.1mm) be 40-100, softening temperature is 40 ℃-60 ℃.
Needs according to use properties, can add other additive, as wherein one or more such as styrene-butadiene-styrene block copolymer (SBS), vinylbenzene-different diene-styrene block copolymer (SIS), styrene-butadiene rubber(SBR) (SBR), polyphosphoric acid (PPA).Whipping device can be selected conventional Mixing Machine for use, also can select conventional high-speed shearing equipment for use, as colloidal mill, high speed shear mixing machine etc.
The composition more complicated of waste rubber powder, main component are rubber hydrocarbon, acetone extract and (in vain) carbon black, and (in vain), sooty content was up to 25%-44%.To the stability in storage of rubber powder modified asphalt, general Study person mainly analyzes and researches from rubber modified pitch of high polymer aspect.The present invention starts with from improving the stability of (in vain) carbon black modifying asphalt, by silane coupling agent organism such as inorganicss such as (in vain) carbon black in the rubber powder and pitch are formed crosslinked fusion, thereby improve dispersion and the hot storage stability of waste Crumb rubber in pitch.Present composition composition is simple, and additive types is few, and technology is simple, suitable large-scale promotion application.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
The hot storage stability test that the present invention relates to is carried out with reference to the T0661-2000 method among the existing JTJ 052-2000 " highway engineering pitch and asphalt testing regulation ".Concrete grammar is as follows: the modifying asphalt sample after will heating injects in the test tube (diameter 25mm, long 20cm), and the baking oven of vertically putting into 163 ℃ then keeps 48h, cooling immediately after insulation finishes.Get the 1/3 section pitch in top and bottom respectively, measure its softening temperature with ring and ball method, estimate the stability in storage of modifying asphalt with the difference of two portions softening temperature, the more little stability of difference is good more.It is generally acknowledged that the absolute value of top and the bottom softening temperature difference is the good sample of hot storage stability less than 2.5 ℃.
Further specify the present invention below by embodiment.Content among the embodiment all by weight.
Embodiment 1
With KH550 coupling agent, water and alcohol preparation coupling agent hydrating solution, (coupling agent: water: alcohol=1: 1: 20) in the rubber powder that junked tire is worn into, add an amount of coupling agent hydrating solution and stir, with the 105 ℃ of oven dry in baking oven of the rubber powder after stirring;
(25 ℃ of 500 gram penetration degrees, 0.1mm) be 65 matrix pitch, be heated to 160 ℃ of fusings earlier, add 15% pretreated 60 order waste rubber powders (the KH550 silane coupling agent that accounts for rubber powder quality 0.5% carries out pre-treatment to rubber powder) then, stirred about 60 minutes down at 180 ℃ ± 2 ℃.This modifying asphalt isolation test softening temperature difference up and down is 2.3 ℃, less than 2.5 ℃, is the sample of steady heat storage.
Embodiment 2
With KH550 coupling agent, water and alcohol preparation coupling agent hydrating solution, (coupling agent: water: alcohol=1: 3: 20) in the rubber powder that junked tire is worn into, add an amount of coupling agent hydrating solution and stir, with the 105 ℃ of oven dry in baking oven of the rubber powder after stirring;
(25 ℃ of 500 gram penetration degrees, 0.1mm) be 65 matrix pitch, be heated to 160 ℃ of fusings earlier, add 15% pretreated 60 order waste rubber powders (the KH550 silane coupling agent that accounts for rubber powder quality 1.0% carries out pre-treatment to rubber powder) then, stirred about 60 minutes down at 180 ℃ ± 2 ℃.This modifying asphalt isolation test softening temperature difference up and down is 1.5 ℃, less than 2.5 ℃, is the sample of steady heat storage.
Embodiment 3
With KH550 coupling agent, water and alcohol preparation coupling agent hydrating solution, (coupling agent: water: alcohol=1: 1: 6) in the rubber powder that junked tire is worn into, add an amount of coupling agent hydrating solution and stir, with the 105 ℃ of oven dry in baking oven of the rubber powder after stirring;
(25 ℃ of 500 gram penetration degrees, 0.1mm) be 65 matrix pitch, be heated to 160 ℃ of fusings earlier, add 15% pretreated 60 order waste rubber powders (the KH550 silane coupling agent that accounts for rubber powder quality 1.5% carries out pre-treatment to rubber powder) then, stirred about 60 minutes down at 180 ℃ ± 2 ℃.This modifying asphalt isolation test softening temperature difference up and down is 1.4 ℃, less than 2.5 ℃, is the sample of steady heat storage.
Comparative example
500 gram penetration degrees (25 ℃, 0.1mm) be 65 matrix pitch, be heated to 160 ℃ of fusings earlier, add 15% then without pretreated 60 order waste rubber powders, stirred about 60 minutes down at 180 ℃ ± 2 ℃.This modifying asphalt isolation test softening temperature difference up and down is 7.0 ℃, and greater than 2.5 ℃, hot storage stability is relatively poor.
Claims (6)
1. the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of a steady heat storage is characterized in that, comprises the steps:
(1) pre-treatment of using rubber powder of waste tire: with coupling agent, water and alcohol preparation coupling agent hydrating solution, in the rubber powder that junked tire is worn into, add an amount of coupling agent hydrating solution and stir, the rubber powder after stirring is dried in baking oven;
(2) matrix pitch modification: 135 ℃ of-160 ℃ of following heat fused, the rubber powder that step (1) pre-treatment is obtained joins in the matrix pitch of heat with matrix pitch, and heat temperature raising is to 180-195 ℃ while stirring, continuously stirring 45-60 minute.
2. according to the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of the described steady heat storage of claim 1, it is characterized in that the mass ratio of the described coupling agent hydrating solution of step (1) consists of coupling agent: water: alcohol=1: 1～3: 6～20.
3. according to the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of the described steady heat storage of claim 1, it is characterized in that coupling agent accounts for the 0.5%-1.5% of rubber powder quality in the described coupling agent hydrating solution of step (1).
4. according to the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of the described steady heat storage of claim 2, it is characterized in that the mass ratio of the described coupling agent hydrating solution of step (1) is a coupling agent: water: alcohol=1: 1: 20.
5. according to the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of claim 1,2,3 or 4 described steady heat storages, it is characterized in that described coupling agent is a silane coupling agent.
6. according to the preparation method of the appts of modified asphalt by utilizing waste tyre rubber powder of the described steady heat storage of claim 1, it is characterized in that the add-on of the described rubber powder of step (2) is the 10%-20% of matrix pitch quality.
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| CN 201010143820 CN101824226A (en) | 2010-04-12 | 2010-04-12 | Preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage |
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| CN 201010143820 CN101824226A (en) | 2010-04-12 | 2010-04-12 | Preparation method of waste and oil tire rubber powder modified asphalt with stable heat storage |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382324A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of silicon rubber modified masterbatches |
| CN102382480A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of synthetic rubber asphalt |
| CN102604398A (en) * | 2012-02-27 | 2012-07-25 | 四川维城磁能有限公司 | Synthetic rubber asphalt and preparation method thereof |
| CN102796387A (en) * | 2012-09-03 | 2012-11-28 | 黄卫 | Epoxy glue powder asphalt material and preparation method thereof |
| CN103482931A (en) * | 2013-09-12 | 2014-01-01 | 德高（广州）建材有限公司 | High-fluidity mosaic binder for improving spreading rate |
| CN103951993A (en) * | 2014-05-06 | 2014-07-30 | 广西大学 | Method of using silane coupling agent as rubber asphalt stabilizer in microwave field |
| CN104292861A (en) * | 2014-09-19 | 2015-01-21 | 新疆大学 | High-storage-stability modified asphalt and preparation method thereof |
| CN104861673A (en) * | 2015-05-20 | 2015-08-26 | 长沙理工大学 | Asphalt cement doped with surface treated basalt fiber and crumb rubber |
| CN110317381A (en) * | 2019-05-23 | 2019-10-11 | 北京建筑大学 | A kind of activation modification waste rubber tyre powder and preparation method thereof using silane coupling agent preparation |
| CN112028547A (en) * | 2020-09-14 | 2020-12-04 | 郑州市路通公路建设有限公司 | Durable emulsified asphalt mixture prepared from waste tire rubber powder and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807514A (en) * | 2006-02-16 | 2006-07-26 | 同济大学 | Method for preparing modified asphalt mixture using waste and old tyre and hybrid method |
| CN101205380A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Novel modified asphalt composition |
-
2010
- 2010-04-12 CN CN 201010143820 patent/CN101824226A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807514A (en) * | 2006-02-16 | 2006-07-26 | 同济大学 | Method for preparing modified asphalt mixture using waste and old tyre and hybrid method |
| CN101205380A (en) * | 2006-12-21 | 2008-06-25 | 上海群康沥青科技有限公司 | Novel modified asphalt composition |
Non-Patent Citations (1)
| Title |
|---|
| 《建筑材料学报》 20090831 曹卫东等 橡胶沥青制备工艺及其性能的研究 498页 1－6 第12卷, 第4期 2 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382324A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of silicon rubber modified masterbatches |
| CN102382480A (en) * | 2011-12-15 | 2012-03-21 | 周其强 | Application of organosilicon residues to preparation of synthetic rubber asphalt |
| CN102382324B (en) * | 2011-12-15 | 2013-03-20 | 周其强 | Application of organosilicon residues in preparation of silicon rubber modified masterbatches |
| CN102604398A (en) * | 2012-02-27 | 2012-07-25 | 四川维城磁能有限公司 | Synthetic rubber asphalt and preparation method thereof |
| CN102604398B (en) * | 2012-02-27 | 2013-11-20 | 四川维城磁能有限公司 | Synthetic rubber asphalt and preparation method thereof |
| CN102796387A (en) * | 2012-09-03 | 2012-11-28 | 黄卫 | Epoxy glue powder asphalt material and preparation method thereof |
| CN103482931A (en) * | 2013-09-12 | 2014-01-01 | 德高（广州）建材有限公司 | High-fluidity mosaic binder for improving spreading rate |
| CN103951993A (en) * | 2014-05-06 | 2014-07-30 | 广西大学 | Method of using silane coupling agent as rubber asphalt stabilizer in microwave field |
| CN103951993B (en) * | 2014-05-06 | 2016-08-17 | 广西大学 | In microwave field, silane coupler is as the method for rubber asphalt stabilizer |
| CN104292861A (en) * | 2014-09-19 | 2015-01-21 | 新疆大学 | High-storage-stability modified asphalt and preparation method thereof |
| CN104861673A (en) * | 2015-05-20 | 2015-08-26 | 长沙理工大学 | Asphalt cement doped with surface treated basalt fiber and crumb rubber |
| CN110317381A (en) * | 2019-05-23 | 2019-10-11 | 北京建筑大学 | A kind of activation modification waste rubber tyre powder and preparation method thereof using silane coupling agent preparation |
| CN112028547A (en) * | 2020-09-14 | 2020-12-04 | 郑州市路通公路建设有限公司 | Durable emulsified asphalt mixture prepared from waste tire rubber powder and preparation method thereof |
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Open date: 20100908 |