CN101736672A - Embedded pouring asphalt concrete - Google Patents
Embedded pouring asphalt concrete Download PDFInfo
- Publication number
- CN101736672A CN101736672A CN200910250977A CN200910250977A CN101736672A CN 101736672 A CN101736672 A CN 101736672A CN 200910250977 A CN200910250977 A CN 200910250977A CN 200910250977 A CN200910250977 A CN 200910250977A CN 101736672 A CN101736672 A CN 101736672A
- Authority
- CN
- China
- Prior art keywords
- asphalt concrete
- pouring asphalt
- spreading
- embedded
- dosage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention relates to paving structures and materials for pavement engineering, in particular to embedded pouring asphalt concrete. The coarse aggregate dosage of the embedded pouring asphalt concrete is reduced by 10-30 percent than the coarse aggregate dosage in the mixing proportion design of ordinary pouring asphalt concrete, and the embedded pouring asphalt concrete is prepared through the following steps of: mixing the coarse aggregate, uniformly stirring at the temperature of 180-220 DEG C, spreading and leveling by using a spreading machine, then spreading a first layer of aggregate with the granularity of 10-15mm and the dosage accounting for 10-25 percent of the quality of the designed pouring asphalt concrete, then spreading a second layer of aggregate with the granularity of 5-10mm and the dosage accounting for 10-15 percent of the quality of the designed pouring asphalt concrete and rolling once through a combined wheel road roller of which bearing wheel walking railways at both sides are provided with lower limited positions and can vibrate to form the embedded pouring asphalt concrete. The coarse aggregate dosage of the embedded pouring asphalt concrete is reduced before the mixture is spread to improve the fluidity, thereby lowering the construction temperature and improving the fatigue durability; the dosage of spread broken stones is increased, and the compaction process and the power are adjusted and increased, thereby ensuring the embedding ratio of the broken stones and improving the high temperature stability.
Description
Technical field
The present invention relates to paving structure and material that pavement engineering is used, especially a kind of embedded pouring asphalt concrete.
Technical background
Pouring asphalt concrete, English is called Guss Asphalt (GA), belongs to a class of bituminous concrete, promptly has the performance of bituminous concrete, but adopts the construction of pouring type, is different from the plain asphalt concrete construction process.Therefore, pouring asphalt concrete has the characteristic that a lot of plain asphalt concrete do not have, little as void content, dense water, durability, the excellent characteristics of fatigue behaviour, this structure are not prone to ordinary hot and mix bituminous concrete unavoidable problem (segregation etc.) in decking and rolling.Just because these a series of characteristics that pouring asphalt concrete had have obtained widely-used in countries such as European countries such as Germany, the U.S., Japan and Hong Kong.Pouring asphalt concrete is mainly used in deck paving, tunnel road surface special road section such as mat formation mats formation, and application life was above 20 years.
Current, be subjected to the influence of domestic particular service requirement (traffic, weather) and the restriction of raw material (asphalt binder), performances such as the antifatigue of pouring asphalt concrete can't compare favourably in external product all the time, and the contradiction that exists between pouring asphalt concrete construction flowability and the concrete performance still fails to solve.Trace it to its cause, mainly be to introduce, use in the process of this technology, consider domestic weather, transportation condition is relatively harsher, pouring asphalt concrete has adopted the reasonable asphalt binder of thermostability, it is the higher modified bitumen of ratio of viscosities, and taked following measure in order to ensure the construction flowability: 1. increase asphalt content: promptly increase asphalt content, reduce high-temperature stability, improve asphalt viscosity, it is mobile to have reduced construction, increase asphalt content again, reduce high-temperature stability again ..., so pouring asphalt concrete development and application is at home being perplexed in vicious circle always; 2. improve construction temperature, improved the flowability of pouring asphalt concrete, must quicken the aging speed and the degree of aging of asphalt binder simultaneously, reduce concrete antifatigue cracking performance and durability.
Summary of the invention
The objective of the invention is to by adjusting pouring asphalt concrete structure and construction technology, guaranteeing to have on the basis of pouring asphalt concrete characteristic, improve its skeleton embedding and squeeze rate, reduce asphalt content and construction temperature, to reach the purpose of improving its high-temperature stability and anti-fatigue performance, further improve the performance of pouring asphalt concrete, to adapt to the instructions for use of the special traffic of China, weather conditions.
The present invention adopt reduce coarse aggregate content, improve mobile, reduced construction temperature, improved fatigue durability, increase the spreading rubble consumption, adjustment and increasing compaction process and power, guaranteed rubble the embedding rate, improved high-temperature stability.
Technical scheme of the present invention is, comprise common pouring asphalt concrete compound, its described embedded pouring asphalt concrete is to reduce 10%～30% of coarse aggregate content in the former common pouring asphalt concrete match ratio design, mix through the bituminous concrete batching plant, mix thoroughly, mixing and stirring temperature is 180～220 ℃, after using the paver special paving and leveling, adopting road-metal spreading machine spreading first floor granularity is that 10～15mm gathers materials, consumption is 10～25% of design pouring asphalt concrete quality, spreading second layer granularity is that 5～10mm gathers materials in the above again, consumption is 10～15% of design pouring asphalt concrete quality, walk track with the both sides BOGEY WHEEL and have lower limit, the combination wheel road roller of band vibration once rolls, and promptly forms embedded pouring asphalt concrete.
Embedded pouring asphalt concrete and common pouring asphalt concrete performance comparison require to see the following form:
Annotate: the low temperature bend test sample dimensions is 300 * 100 * 50mm, fatigue test sample dimensions 385 * 50 * 65mm
The present invention has the following advantages with respect to common pouring asphalt concrete:
(1) reduces the mix temperature, improved the crack resistance at low-temperature and the fatigue durability of compound;
(2) improved flowability, the embedding rate of guarantee to construct feasibility and later stage rubble;
(3) adjustment of the embedding of rubble and compaction technology has improved the high-temperature stability of compound;
(4) do not have to have increased substantially the fatigue durability of pouring asphalt concrete under the situation of higher increase at cost, have highly application value.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing.
Accompanying drawing is a structure section schematic diagram of the present invention.
Among the figure: 1-reduces the 6-embedded pouring asphalt concrete surface, the former pouring asphalt concrete of pouring asphalt concrete 2-spreading first floor coarse aggregate 3-spreading second layer coarse aggregate 4-bituminous grout 5-surface of coarse aggregate content
The specific embodiment
Embodiment further specifies the present invention below in conjunction with accompanying drawing.
Adopt pouring asphalt concrete (GA10) grating claimed range in " highway steel box girder bridge floor paving design and construction technical manual " (hand over and compile word (2006) No. 274), reduce coarse aggregate (〉=2.36mm) basalt consumption 28%, putting into the bituminous mixture batching plant mixes, mix thoroughly, the mix temperature is 203 ℃, behind the paver paving and leveling, formed the pouring asphalt concrete 1 that reduces coarse aggregate content, in its surperficial spreading one deck granularity is 10～15mm basaltic broken stone, consumption is 22% of design pouring asphalt concrete quality, form spreading first floor coarse aggregate 2, again its surface again spreading second layer granularity be 5～10mm basaltic broken stone, consumption is 14% of design pouring asphalt concrete quality, form spreading second layer coarse aggregate 3, adopt the both sides BOGEY WHEEL to walk track and have lower limit, the combination wheel road roller of band vibration once rolls, make on the bituminous grout 4 and move, the basaltic broken stone of spreading is imbedded wherein, moved on to existing embedded pouring asphalt concrete surface 6 on the former pouring asphalt concrete surface 5.
The performance test results of embedded pouring asphalt concrete:
Annotate: the low temperature bend test sample dimensions is 300 * 100 * 50mm, fatigue test sample dimensions 385 * 50 * 65mm.
From above test result as can be seen, with respect to former common pouring asphalt concrete, the temperature of mixing and stirring embedded pouring asphalt concrete reduces, the mobile raising, and high-temperature stability (pile penetration is increment, dynamic stability) obviously improvement, crack resistance at low-temperature (maximum flexural-tensile strain) and fatigue durability increases substantially.
Claims (1)
1. embedded pouring asphalt concrete, comprise common pouring asphalt concrete compound, it is characterized in that: described embedded pouring asphalt concrete is to reduce 10%～30% of coarse aggregate content in the former common pouring asphalt concrete match ratio design, mix through the bituminous concrete batching plant, mix thoroughly, mixing and stirring temperature is 180～220 ℃, after using the paver special paving and leveling, adopting road-metal spreading machine spreading first floor granularity is that 10～15mm gathers materials, consumption is 10～25% of design pouring asphalt concrete quality, spreading second layer granularity is that 5～10mm gathers materials in the above again, consumption is 10～15% of design pouring asphalt concrete quality, walk track with the both sides BOGEY WHEEL and have lower limit, the combination wheel road roller of band vibration once rolls, and promptly forms embedded pouring asphalt concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102509778A CN101736672B (en) | 2009-12-24 | 2009-12-24 | Embedded pouring asphalt concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102509778A CN101736672B (en) | 2009-12-24 | 2009-12-24 | Embedded pouring asphalt concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736672A true CN101736672A (en) | 2010-06-16 |
| CN101736672B CN101736672B (en) | 2012-01-11 |
Family
ID=42460659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102509778A Active CN101736672B (en) | 2009-12-24 | 2009-12-24 | Embedded pouring asphalt concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101736672B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963261A (en) * | 2015-07-15 | 2015-10-07 | 重庆市智翔铺道技术工程有限公司 | Automatic metal net roll flattening machine for cast asphalt pavement of road surface |
| CN109577149A (en) * | 2018-12-03 | 2019-04-05 | 周峻宇 | A kind of kerbstone Paving Techniques and paver |
| CN111170678A (en) * | 2020-01-20 | 2020-05-19 | 北京建筑大学 | Pouring type concrete with polyurethane as binder and preparation method thereof |
| CN113818316A (en) * | 2021-10-15 | 2021-12-21 | 中铁发展投资有限公司 | Road-mixing inorganic binder distributing method and device |
-
2009
- 2009-12-24 CN CN2009102509778A patent/CN101736672B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963261A (en) * | 2015-07-15 | 2015-10-07 | 重庆市智翔铺道技术工程有限公司 | Automatic metal net roll flattening machine for cast asphalt pavement of road surface |
| CN104963261B (en) * | 2015-07-15 | 2017-05-17 | 重庆市智翔铺道技术工程有限公司 | Automatic metal net roll flattening machine for cast asphalt pavement of road surface |
| CN109577149A (en) * | 2018-12-03 | 2019-04-05 | 周峻宇 | A kind of kerbstone Paving Techniques and paver |
| CN109577149B (en) * | 2018-12-03 | 2021-01-26 | 滁州市宏图建设有限公司 | Curb paver |
| CN111170678A (en) * | 2020-01-20 | 2020-05-19 | 北京建筑大学 | Pouring type concrete with polyurethane as binder and preparation method thereof |
| CN113818316A (en) * | 2021-10-15 | 2021-12-21 | 中铁发展投资有限公司 | Road-mixing inorganic binder distributing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101736672B (en) | 2012-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102505605B (en) | Ultra-thin wearing layer of pavement | |
| CN112726321B (en) | Full-thickness ultrathin long-life pavement structure and construction method thereof | |
| CN202865716U (en) | Modified bituminous mixture pavement | |
| CN101973726A (en) | Porous pavement partially taking steel slag as coarse aggregate | |
| CN104446156B (en) | A kind of emulsified bitumen slurry mixture penetration type bituminous paving | |
| CN102021872A (en) | Vibration molding-based method for design of mix proportion of graded broken stones | |
| CN102863182B (en) | Ultrathin rubber asphalt wearing layer mixing material for preventive conservation | |
| CN101781469A (en) | Polymer composite modified asphalt | |
| CN101619557A (en) | Pavement base course material prepared from brick mixed building rubbish regenerated aggregate and preparation method thereof | |
| CN106587835A (en) | Cold-mixed cement-emulsified asphalt concrete and pavement method thereof | |
| CN110593046A (en) | High-strength durable steel slag permeable asphalt pavement structure | |
| CN103420643B (en) | A kind of preparation method of regeneration aggregate bituminous concrete and the application in bituminous pavement | |
| CN106149500A (en) | A kind of construction method of cement emulsified asphalt mortar penetration type half-flexible pavement | |
| CN201296895Y (en) | Vertical cracking pavement repair structure | |
| CN101736672B (en) | Embedded pouring asphalt concrete | |
| CN101532273B (en) | Anti-rutting road surface RS2000 modified asphalt mixture proportion and construction technology | |
| CN111118999A (en) | Road structure of urban intersection, bus station and bus lane | |
| CN104830080A (en) | Asphalt grouting material for roadbed reinforcement | |
| CN110714389A (en) | Ultrathin high-performance composite semi-flexible surface layer pavement structure and construction method thereof | |
| CN112553994A (en) | Composite pavement road with asphalt layer coated on sisal fiber cement-based composite material | |
| CN101767958A (en) | High-performance light-weight epoxy asphalt concrete and preparation method thereof | |
| CN201495466U (en) | Roadbed constructed by utilizing recycled aggregate from brick and concrete construction waste | |
| CN108191309B (en) | Modified roadbed silty soil and method for roadbed filling by using same | |
| CN114182595B (en) | Construction method of long-life asphalt road | |
| CN214831604U (en) | Sisal fiber ECC (error correction code) coated asphalt layer composite pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |