CN101736672B - Embedded pouring asphalt concrete - Google Patents
Embedded pouring asphalt concrete Download PDFInfo
- Publication number
- CN101736672B CN101736672B CN2009102509778A CN200910250977A CN101736672B CN 101736672 B CN101736672 B CN 101736672B CN 2009102509778 A CN2009102509778 A CN 2009102509778A CN 200910250977 A CN200910250977 A CN 200910250977A CN 101736672 B CN101736672 B CN 101736672B
- 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.)
- Active
Links
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 54
- 238000013461 design Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000004575 stone Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000010426 asphalt Substances 0.000 description 10
- 230000002929 anti-fatigue Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 type 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 like 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, and application life was above 20 years.
Current; Receive 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 this technological process; Consider that domestic weather, transportation condition are relatively harsher; Pouring asphalt concrete has adopted the reasonable asphalt binder of thermostability; Be the higher modified bitumen of ratio of viscosities, and taked following measure: 1. increase asphalt content: promptly increase asphalt content, reduce high-temperature stability, improve asphalt viscosity, reduced the construction flowability, increase asphalt content again, reduce high-temperature stability again in order to ensure the construction flowability ..., 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 through adjustment 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, mixes, mixes thoroughly through the bituminous concrete batching plant; 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, and 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, walks track with the both sides BOGEY WHEEL and has the combination wheel road roller that lower limit, band vibrate and once roll, 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 sketch map 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); (>=2.36mm) basalt consumption 28% is put into the bituminous mixture batching plant and is mixed, mixes thoroughly, and the mix temperature is 203 ℃ to reduce coarse aggregate; Behind the paver paving and leveling; Having formed the pouring asphalt concrete 1 that reduces coarse aggregate content, is 10～15mm basaltic broken stone in its surperficial spreading one deck granularity, and 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, forms spreading second layer coarse aggregate 3; Adopting the both sides BOGEY WHEEL to walk the combination wheel road roller that track has lower limit, band vibration once rolls; Make on the bituminous grout 4 and move, the basaltic broken stone of spreading is imbedded wherein, move 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.
Can find out from above test result; 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, mixes, mixes thoroughly through the bituminous concrete batching plant; 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, and 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, walks track with the both sides BOGEY WHEEL and has the combination wheel road roller that lower limit, band vibrate and once roll, 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 CN101736672A (en) | 2010-06-16 |
| CN101736672B true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112501996B (en) * | 2018-12-03 | 2022-07-19 | 日照三和建设工程有限公司 | Kerbstone paving process |
| 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 |
| CN113818316B (en) * | 2021-10-15 | 2022-09-09 | 中铁发展投资有限公司 | Road-mixing inorganic binder material distribution method and device |
-
2009
- 2009-12-24 CN CN2009102509778A patent/CN101736672B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101736672A (en) | 2010-06-16 |
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 | |
| CN103864374B (en) | Semi-flexible pavement base material and preparation method thereof | |
| CN101973726B (en) | Porous pavement partially taking steel slag as coarse aggregate | |
| CN101781469B (en) | Polymer composite modified asphalt | |
| CN104446156B (en) | A kind of emulsified bitumen slurry mixture penetration type bituminous paving | |
| CN106587835B (en) | A kind of cold mixing formula Cement emulsified asphalt concrete and its method for paving | |
| CN102021872A (en) | Vibration molding-based method for design of mix proportion of graded broken stones | |
| CN101619557A (en) | Pavement base course material prepared from brick mixed building rubbish regenerated aggregate and preparation method thereof | |
| CN106149500A (en) | A kind of construction method of cement emulsified asphalt mortar penetration type half-flexible pavement | |
| CN103420643B (en) | A kind of preparation method of regeneration aggregate bituminous concrete and the application in bituminous pavement | |
| CN101736672B (en) | Embedded pouring asphalt concrete | |
| CN102863182A (en) | Ultrathin rubber asphalt wearing layer mixing material for preventive conservation | |
| CN201296895Y (en) | Vertical cracking pavement repair structure | |
| CN104003661A (en) | Water-permeable reclaimed asphalt mixture paving brick and preparation method thereof | |
| 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 | |
| CN110128070A (en) | Graded broken stone pours into formula semi-flexible composite pavement mixture and pavement construction method | |
| 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 |
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 | ||
| CP03 | Change of name, title or address |
Address after: 400060 20th and 21st floors, building 17 (office building), No. 33 Xuefu Avenue, Nan'an District, Chongqing Patentee after: China Merchants Zhixiang Road Technology (Chongqing) Co.,Ltd. Country or region after: China Address before: 401336 No. 10, Chun Ying Road, Nan'an District, Chongqing Patentee before: CHONGQING ZHIXIANG PAVING TECHNOLOGY ENGINEERING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |