CN101153478A - Construction method for rubber grain asphalt concrete pavement - Google Patents
Construction method for rubber grain asphalt concrete pavement Download PDFInfo
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- CN101153478A CN101153478A CNA2007101444480A CN200710144448A CN101153478A CN 101153478 A CN101153478 A CN 101153478A CN A2007101444480 A CNA2007101444480 A CN A2007101444480A CN 200710144448 A CN200710144448 A CN 200710144448A CN 101153478 A CN101153478 A CN 101153478A
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- rubber grain
- asphalt concrete
- mineral aggregate
- concrete pavement
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Abstract
A method for constructing rubber particles asphalt concrete road surfaces relates to a method for constructing asphalt concrete road surfaces, aiming to resolve the problems that: the asphalt concrete road surfaces have weak wear-resistant, and the attachment coefficient and the adhesive force are reduced and vehicles have the problem of braking stability when the road surfaces are covered by snow and ice. The construction method comprises the following steps that: compositions by weigh percentage of the following materials are adopted: 76.5 to 91.5 percent of mineral aggregate, 2.5 to 7.5 percent of asphalt, 4 to 10 percent of mineral powder and 2 to 6 percent of rubber particles; the mineral aggregate is heated up to 190 to 200 DEG C, the rubber particles are added into the mineral aggregate with mixing about 20 to 25 seconds, the asphalt heated up in advance and the mineral powder are added into the rubber particles and the mineral aggregate with mixing lasting for 70 to 80 seconds, and then the road surfaces are subject to the pavement, the first stage initial pressure, the first and the second stage re-pressure and the second stage final pressure. The invention can increase the deformation capabilities of the road surfaces effectively, improve the bond state between the road surfaces and snow, and the invention can improve the attachment coefficient, increase the adhesive force, and improve the braking and turning operation stability of vehicles when the road surfaces are cover by snow and ice.
Description
Technical field
The present invention relates to a kind of job practices of asphalt concrete pavement.
Background technology
Most of area of China belongs to the ice and snow area, and road surface (being asphalt concrete pavement) accumulated snow ice formation issues is comparatively common.Especially early winter and season in the early spring, road surface accumulated snow is under the effect of variations in temperature and vehicular load, and road surface very easily forms thin ice, influences traffic safety.According to one's analysis, ice and snow reduces coefficient of road adhesion greatly, adhesive power obviously reduces, vehicle braked stability, steering operation stability is all with variation, and in the ice and snow road up train, because the high light line reflection stimulates for a long time, make pilot's line of vision smudgy easily, and then causing frequent accidents to take place, ice and snow sky road accident rate obviously increases.According to statistics, account for more than 35% of traffic accident in winter total amount because of the icing traffic accident that causes of road accumulated snow.
Summary of the invention
The job practices that the purpose of this invention is to provide a kind of rubber grain asphalt concrete pavement, it can solve asphalt concrete pavement anti-wear performance difference and when asphalt concrete pavement accumulated snow freezes, exist attachment coefficient to reduce, adhesive power reduces, the problem of vehicle braked stability, steering operation poor stability.
Job practices of the present invention is finished like this: a, mix and stir: at first choose following raw material and form according to percentage by weight: mineral aggregate 76.5～91.5%, pitch 2.5～7.5%, breeze 4～10%, rubber grain 2～6%, mineral aggregate is heated to 190～200 ℃, described rubber grain is joined dry mixing in the mineral aggregate, mixing time is 20～25s, pre-heated pitch and breeze are joined in rubber grain and the mineral aggregate again and mix and stir, the heating-up temperature of described pitch is 155～180 ℃; From the dry mixing of mineral aggregate and rubber grain to the whole mixing time that adds pitch and breeze is 70～80s, makes bituminous mixture; B, pave: the temperature of bituminous mixture is 140～175 ℃ when paving, and the coefficient of loose laying after paving is 1.25～1.30; C, phase I first pressing: steamroller, the temperature of bituminous mixture is 135～175 ℃ when rolling, the gait of march of road roller is 1.5～2km/h; D, phase I press again: steamroller, and the temperature of bituminous mixture is 115～175 ℃ when rolling, the gait of march of road roller is 4～5km/h; E, second stage are pressed again: steamroller, and the temperature of bituminous mixture is 70～80 ℃ when rolling, the gait of march of road roller is 3.5～4.5km/h; F, second stage final pressure: steamroller, the temperature of bituminous mixture is 65～80 ℃ when rolling, the gait of march of road roller is 2.5～3.5km/h.
The present invention has following beneficial effect: the present invention is broken into definite shape and size particles with waste and used rubber tyre, form with aggregate directly makes an addition in the bituminous mixture, gather materials and the novel bituminous mixture that forms in order to instead of part, be used for the paving engineering.Because the rubber grain in the rubber grain compound has bigger elastic deformability; can effectively improve the deformability on road surface; improve the bond state on ice and snow and road surface; improve attachment coefficient, the increase adhesive power of ice and snow road; improve vehicle braked stability and steering operation stability, under the vehicular load effect, freeze by can effectively suppress road surface accumulated snow from stress.In addition, granulated crumb rubber asphalt mixture since admixture have a waste tire rubber granule of high-elastic characteristic, the pliability on road surface is strengthened, and the anti-rut performance of crack resistance at low-temperature and high temperature improves, and road-ability improves, and the road surface is to the absorptive capacity raising of noise, traffic noise obviously reduces, and the anti-wear performance on road surface strengthens, and the road surface that institute's making forms has higher skid resistance, even under very moist situation, its cling property is also fine.In addition, waste and used rubber tyre is utilized again, not only solved environmental issue, saved resource, the functional performance of simultaneously all right road improvement reduces the influence of ice and snow road to traffic, prolongs the application life on road surface, saves the expense that is used for deicing.By the friction factor of the rubber grain asphalt concrete pavement of job practices making of the present invention and construction depth all greater than the prevailing roadway of the bituminous mixture making that does not add rubber grain, the level of noise of travelling is hanged down about 2 decibels than the prevailing roadway of the bituminous mixture making that does not add rubber grain, and anti-acoustic capability obviously improves.Compare high temperature resistance to permanent deformation performance with the asphalt concrete pavement that does not add rubber grain by the rubber grain asphalt concrete pavement of job practices making of the present invention and improved 22%～73%, crack resistance at low-temperature has improved 6.2%～16.1%, anti-water damage property has improved 6.3%～7.8%, and anti-fatigue performance has improved 13.3%～40%.
The specific embodiment
The specific embodiment one: the job practices of the rubber grain asphalt concrete pavement of present embodiment is finished like this: a, mix and stir: at first choose following raw material and form according to percentage by weight: mineral aggregate 76.5～91.5%, pitch 2.5～7.5%, breeze 4～10%, rubber grain 2～6%, mineral aggregate is heated to 190～200 ℃, described rubber grain is joined dry mixing in the mineral aggregate, mixing time is 20～25s, pre-heated pitch and breeze are joined in rubber grain and the mineral aggregate again and mix and stir, the heating-up temperature of described pitch is 155～180 ℃; From the dry mixing of mineral aggregate and rubber grain to the whole mixing time that adds pitch and breeze is 70～80s, makes bituminous mixture; B, pave: the temperature of bituminous mixture is 140～175 ℃ when paving, and the coefficient of loose laying after paving is 1.25～1.30; C, phase I first pressing: steamroller, the temperature of bituminous mixture is 135～175 ℃ when rolling, the gait of march of road roller is 1.5～2km/h; D, phase I press again: steamroller, and the temperature of bituminous mixture is 115～175 ℃ when rolling, the gait of march of road roller is 4～5km/h; E, second stage are pressed again: steamroller, and the temperature of bituminous mixture is 70～80 ℃ when rolling, the gait of march of road roller is 3.5～4.5km/h; F, second stage final pressure: steamroller, the temperature of bituminous mixture is 65～80 ℃ when rolling, the gait of march of road roller is 2.5～3.5km/h.Because the easy conglomeration of rubber grain, be difficult to disperse, and for guaranteeing that rubber grain and pitch can fully react, form good bonding, guarantee granulated crumb rubber asphalt mixture mix and stir the back uniformity, do not have grey material, no conglomeration becomes piece or serious thickness material segregation phenomenon, mineral aggregate and pitch are heated to needed temperature, can guarantee the quality requirement that mixes and stirs.
The specific embodiment two: the difference of the present embodiment and the specific embodiment one is: present embodiment is mixed and stirred in the step at a, and the particle diameter of described rubber grain is 0.3～5mm.Can improve the elastic deformation characteristic of compound and the state on surface.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one is: present embodiment adopts the twin wheel steel cartridge type road roller of 10～12t to roll twice in c phase I first pressing step.In order to reduce the generation of the sticking wheel phenomenon that causes owing to the sticking characteristic of the height of material, when temperature is higher, should adopt twin wheel steel cartridge type road roller to roll.
The specific embodiment four: the difference of the present embodiment and the specific embodiment one is: present embodiment was pressed in the step again in the d phase I, adopted vibratory roller to roll twice, and the vibration frequency of described vibratory roller is 45Hz, and amplitude is 0.4～0.6mm.Make by vibration and to gather materials fully in placely, form rock-steady structure, degree of compaction can reach 94% after this stage rolls.
The specific embodiment five: the difference of the present embodiment and the specific embodiment one is: present embodiment is pressed in the step again in the e second stage, adopts the rubber-tyred roller of 18～26t to roll twice.After temperature is reduced to a certain temperature, adopt rubber-tyred roller to crumple, can effectively suppress the resilience of rubber grain.
The specific embodiment six: the difference of the present embodiment and the specific embodiment one is: present embodiment is in f second stage final pressure step, adopt 10～12t twin wheel steel cartridge type road roller to roll twice, can further consolidate the formation of rock-steady structure, degree of compaction after this stage rolls can reach more than 97%, through the good evenness of road surface of the method making, there is not obvious convex-concave.
The specific embodiment seven: the difference of the present embodiment and the specific embodiment one is: present embodiment is in b paves step, and paving thickness is 4.1cm; Press again in the step in the d phase I, the void content on the road surface after rolling reaches 6.4%; The void content on the road surface after the e second stage is pressed again in the step, rolled reaches 3.9%; In f second stage final pressure step, the compactness on the road surface after rolling reaches 96.9%.Through the good evenness of road surface of the method making, there is not obvious convex-concave.
Claims (6)
1. the job practices of a rubber grain asphalt concrete pavement, it is characterized in that it finishes like this: a, mix and stir: at first choose following raw material and form: mineral aggregate 76.5～91.5%, pitch 2.5～7.5%, breeze 4～10%, rubber grain 2～6% according to percentage by weight, mineral aggregate is heated to 190～200 ℃, described rubber grain is joined dry mixing in the mineral aggregate, mixing time is 20～25s, pre-heated pitch and breeze are joined in rubber grain and the mineral aggregate again and mix and stir, the heating-up temperature of described pitch is 155～180 ℃; From the dry mixing of mineral aggregate and rubber grain to the whole mixing time that adds pitch and breeze is 70～80s, makes bituminous mixture; B, pave: the temperature of bituminous mixture is 140～175 ℃ when paving, and the coefficient of loose laying after paving is 1.25～1.30; C, phase I first pressing: steamroller, the temperature of bituminous mixture is 135～175 ℃ when rolling, the gait of march of road roller is 1.5～2km/h; D, phase I press again: steamroller, and the temperature of bituminous mixture is 115～175 ℃ when rolling, the gait of march of road roller is 4～5km/h; E, second stage are pressed again: steamroller, and the temperature of bituminous mixture is 70～80 ℃ when rolling, the gait of march of road roller is 3.5～4.5km/h; F, second stage final pressure: steamroller, the temperature of bituminous mixture is 65～80 ℃ when rolling, the gait of march of road roller is 2.5～3.5km/h.
2. the job practices of rubber grain asphalt concrete pavement according to claim 1 is characterized in that a mixes and stirs in the step, and the particle diameter of described rubber grain is 0.3～5mm.
3. the job practices of rubber grain asphalt concrete pavement according to claim 1 is characterized in that in the c phase I first pressing step, adopts the twin wheel steel cartridge type road roller of 10～12t to roll twice.
4. the job practices of rubber grain asphalt concrete pavement according to claim 1 is characterized in that the d phase I presses in the step again, adopts vibratory roller to roll twice, and the vibration frequency of described vibratory roller is 45Hz, and amplitude is 0.4～0.6mm.
5. the job practices of rubber grain asphalt concrete pavement according to claim 1 is characterized in that the e second stage presses in the step again, adopts the rubber-tyred roller of 18～26t to roll twice.
6. the job practices of rubber grain asphalt concrete pavement according to claim 1 is characterized in that in the f second stage final pressure step, adopts 10～12t twin wheel steel cartridge type road roller to roll twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101444480A CN100537898C (en) | 2007-10-16 | 2007-10-16 | The job practices of rubber grain asphalt concrete pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101444480A CN100537898C (en) | 2007-10-16 | 2007-10-16 | The job practices of rubber grain asphalt concrete pavement |
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| CN101153478A true CN101153478A (en) | 2008-04-02 |
| CN100537898C CN100537898C (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101444480A Expired - Fee Related CN100537898C (en) | 2007-10-16 | 2007-10-16 | The job practices of rubber grain asphalt concrete pavement |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581065B (en) * | 2008-05-13 | 2011-02-16 | 龙建路桥股份有限公司 | Method for constructing road foundation by using bituminous concrete paver |
| CN102011360A (en) * | 2010-11-28 | 2011-04-13 | 宗焕清 | Construction method of highway asphalt pavement |
| CN101476274B (en) * | 2007-04-04 | 2011-07-13 | 黄益铉 | Elastic material to be used for paving road and method for manufacturing thereof and method for paving road using the elastic material |
| CN102154967A (en) * | 2011-01-26 | 2011-08-17 | 中交第二公路工程局有限公司 | Construction technology of asphalt concrete pavements of long and large longitudinal slopes in mountainous areas, ultra-high road sections and bridge floors |
| CN102718438A (en) * | 2012-04-30 | 2012-10-10 | 武汉理工大学 | Bridge floor seamless expansion joint material with large expansion amount and preparation method thereof |
| CN103614956A (en) * | 2013-11-29 | 2014-03-05 | 拉法基技术服务（北京）有限公司 | Road surface paving layer construction method |
| CN104233918A (en) * | 2014-09-26 | 2014-12-24 | 南京同安道路工程有限公司 | Large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and preparation method thereof |
| CN108595879A (en) * | 2018-05-09 | 2018-09-28 | 长安大学 | A method of improving pavement construction flatness |
| CN109056447A (en) * | 2018-09-13 | 2018-12-21 | 中交第公路勘察设计研究院有限公司 | From ice-breaking paving layer material and its construction method |
| CN111138913A (en) * | 2020-01-19 | 2020-05-12 | 河南省公路工程局集团有限公司 | Long-acting pavement anti-freezing coating material and preparation method thereof |
| CN111236018A (en) * | 2020-02-29 | 2020-06-05 | 河南省光大路桥工程有限公司 | Super-thick paving compaction process |
| CN112266697A (en) * | 2020-09-15 | 2021-01-26 | 苏州圣杰特种树脂有限公司 | Self-adaptive anti-icing pavement |
| CN117534371A (en) * | 2023-12-29 | 2024-02-09 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
| EP4306596A3 (en) * | 2022-07-13 | 2024-03-06 | Hansoo Natech Co., Ltd | Medium-low temperature asphalt modifier having deodorization function, asphalt mixture prepared using the same, and construction method thereof |
-
2007
- 2007-10-16 CN CNB2007101444480A patent/CN100537898C/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476274B (en) * | 2007-04-04 | 2011-07-13 | 黄益铉 | Elastic material to be used for paving road and method for manufacturing thereof and method for paving road using the elastic material |
| CN101581065B (en) * | 2008-05-13 | 2011-02-16 | 龙建路桥股份有限公司 | Method for constructing road foundation by using bituminous concrete paver |
| CN102011360B (en) * | 2010-11-28 | 2015-04-01 | 宗焕清 | Construction method of highway asphalt pavement |
| CN102011360A (en) * | 2010-11-28 | 2011-04-13 | 宗焕清 | Construction method of highway asphalt pavement |
| CN102154967A (en) * | 2011-01-26 | 2011-08-17 | 中交第二公路工程局有限公司 | Construction technology of asphalt concrete pavements of long and large longitudinal slopes in mountainous areas, ultra-high road sections and bridge floors |
| CN102154967B (en) * | 2011-01-26 | 2012-10-31 | 广东华盟路桥工程有限公司 | Construction technology of asphalt concrete pavements of long and large longitudinal slopes in mountainous areas, ultra-high road sections and bridge floors |
| CN102718438A (en) * | 2012-04-30 | 2012-10-10 | 武汉理工大学 | Bridge floor seamless expansion joint material with large expansion amount and preparation method thereof |
| CN102718438B (en) * | 2012-04-30 | 2014-12-03 | 武汉理工大学 | Bridge floor seamless expansion joint material with large expansion amount and preparation method thereof |
| CN103614956B (en) * | 2013-11-29 | 2016-06-08 | 拉法基技术服务（北京）有限公司 | The constructional method of a kind of road pavement layer |
| CN103614956A (en) * | 2013-11-29 | 2014-03-05 | 拉法基技术服务（北京）有限公司 | Road surface paving layer construction method |
| CN104233918A (en) * | 2014-09-26 | 2014-12-24 | 南京同安道路工程有限公司 | Large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and preparation method thereof |
| CN108595879A (en) * | 2018-05-09 | 2018-09-28 | 长安大学 | A method of improving pavement construction flatness |
| CN108595879B (en) * | 2018-05-09 | 2021-10-22 | 长安大学 | Method for improving pavement construction flatness |
| CN109056447A (en) * | 2018-09-13 | 2018-12-21 | 中交第公路勘察设计研究院有限公司 | From ice-breaking paving layer material and its construction method |
| CN111138913A (en) * | 2020-01-19 | 2020-05-12 | 河南省公路工程局集团有限公司 | Long-acting pavement anti-freezing coating material and preparation method thereof |
| CN111236018A (en) * | 2020-02-29 | 2020-06-05 | 河南省光大路桥工程有限公司 | Super-thick paving compaction process |
| CN112266697A (en) * | 2020-09-15 | 2021-01-26 | 苏州圣杰特种树脂有限公司 | Self-adaptive anti-icing pavement |
| EP4306596A3 (en) * | 2022-07-13 | 2024-03-06 | Hansoo Natech Co., Ltd | Medium-low temperature asphalt modifier having deodorization function, asphalt mixture prepared using the same, and construction method thereof |
| CN117534371A (en) * | 2023-12-29 | 2024-02-09 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
| CN117534371B (en) * | 2023-12-29 | 2024-04-02 | 知行良知实业股份有限公司 | High-proportion regenerated rubber asphalt mixture and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100537898C (en) | 2009-09-09 |
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