CN204385576U - A kind of energy-conservation road structure - Google Patents
A kind of energy-conservation road structure Download PDFInfo
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- CN204385576U CN204385576U CN201520007403.9U CN201520007403U CN204385576U CN 204385576 U CN204385576 U CN 204385576U CN 201520007403 U CN201520007403 U CN 201520007403U CN 204385576 U CN204385576 U CN 204385576U
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Abstract
The utility model discloses a kind of energy-conservation road structure, and surface layer is layered composite structure, and surface layer includes surface layer and hot in-plant reclaimed asphalt concrete cutting optimal in normal temperature bituminous concrete upper layer, rubber asphalt high-modulus asphalt concrete from top to bottom successively; Basic unit is layered composite structure, and basic unit includes basic unit and low content cement stabilized gravel on cold in-plant recycling emulsified bitulith from top to bottom successively and goes to a grassroots level; Hot in-plant reclaimed asphalt concrete cutting optimal is arranged on the upper surface of basic unit on cold in-plant recycling emulsified bitulith; Subbase is two-ash soil subbase.The utility model upper layer and upper basic unit adopt cold mixing cold-application technology, and middle surface layer adopts junked tire material, and cutting optimal and upper basic unit adopt old asphalt mixture, and road structure has significant energy-saving and emission-reduction benefit.
Description
Technical field
The utility model relates to a kind of road surface structure, particularly relates to a kind of low-carbon energy-saving road structure.
Background technology
Flexible pavement is the road structure that surface layer made by the certain thickness bituminous mixture of making on flexbile base, semi-rigid type base.This road surface its strength and stability compared with sand-gravel surface improves all greatly.Compared with cement concrete pavement, flexible pavement surfacing is without seam, and driving vibration is little, and noise is low, and open to traffic is fast, and maintenance is easy, is suitable for road surface stage construction, is the important feature form on China road surface.
China Higher level highway generally adopts the road structure form of semi-rigid type base asphalt surface course, and bitumen layer gross thickness is generally at about 18cm.When current heavy traffic task is heavy, because asphalt thickness entirety does not reach anti-fatigue performance, to such an extent as to adopt the stressed of semi-rigid type base carrying road surface, cause semi-rigid type base easily to ftracture, greatly reduce bearing capacity and application life, the maintenance adding road and the maintenance cost of road.In order to address this problem, general road structure adopts heat to mix hot paving technology when constructing, although Technical comparing is ripe, be unfavorable for current low-carbon environment-friendly, energy-saving and emission-reduction requirement.
Because the defect that above-mentioned existing road structure exists, the design people, actively in addition research and innovation, to founding a kind of novel energy-conserving road structure, make it have more practicality.
Utility model content
Main purpose of the present utility model is, overcomes the defect that existing road structure exists, and provides a kind of novel energy-conserving road structure, increase the service life, thus be more suitable for practicality, and have the value in industry.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to the energy-conservation road structure that the utility model proposes, described energy-conservation road structure includes surface layer, basic unit and subbase from top to bottom successively,
Described surface layer is layered composite structure, and described surface layer includes surface layer and hot in-plant reclaimed asphalt concrete cutting optimal in normal temperature bituminous concrete upper layer, rubber asphalt high-modulus asphalt concrete from top to bottom successively;
Described basic unit is layered composite structure, and described basic unit includes basic unit and low content cement stabilized gravel on cold in-plant recycling emulsified bitulith from top to bottom successively and goes to a grassroots level;
Described hot in-plant reclaimed asphalt concrete cutting optimal is arranged on the upper surface of basic unit on cold in-plant recycling emulsified bitulith;
Described subbase is two-ash soil subbase, and described low content cement stabilized gravel is gone to a grassroots level and is arranged on described two-ash soil subbase upper surface.
Further, aforesaid energy-conservation road structure, the thickness of described normal temperature bituminous concrete upper layer is 3cm ~ 5cm, be preferably 4cm, if cross that thin normal temperature bituminous concrete upper layer asphalt pavement mixture is easily emanated, compacting difficulty, space be bigger than normal, thus cause loose, bellding, peel off and cheat the early diseases such as hole; If blocked up, then increase construction costs, waste resource.
Further, aforesaid energy-conservation road structure, in described rubber asphalt high-modulus asphalt concrete, the thickness of surface layer is 5cm ~ 8cm, is preferably 6cm.If cross that thin compound is easily emanated, compacting difficulty, space be bigger than normal, thus cause the early diseases such as loose, crack; If blocked up, then increase construction costs, waste resource.
Further, aforesaid energy-conservation road structure, the thickness of described hot in-plant reclaimed asphalt concrete cutting optimal is 7cm ~ 10cm, is preferably 8cm.If cross that thin compound is easily emanated, compacting difficulty, space be bigger than normal, thus cause the early diseases such as loose, crack; If blocked up, then increase construction costs, waste resource.
Further, aforesaid energy-conservation road structure, on described cold in-plant recycling emulsified bitulith, the thickness of basic unit is 8cm ~ 14cm, is preferably 12cm.If cross that thin compound is easily emanated, compacting difficulty, space be bigger than normal, basic unit's bearing capacity reduces simultaneously, thus causes the early diseases such as loose, crack and reduce road structure application life; If blocked up, then increase construction costs, waste resource.
Further, aforesaid energy-conservation road structure, the thickness that described low content cement stabilized gravel is gone to a grassroots level is 15cm ~ 20cm, is preferably 18cm.If Guo Bao basic unit bearing capacity reduces, thus cause the early diseases such as loose, crack and reduce road structure application life; If blocked up, then increase construction costs, waste resource.
Further, aforesaid energy-conservation road structure, the thickness of described two-ash soil subbase is 15cm ~ 30cm, is preferably 20cm.Reduce if cross thin substrate layer bearing capacity, thus cause the early diseases such as loose, crack and reduce road structure application life; If blocked up, then increase construction costs, waste resource.
By technique scheme, energy-conservation road structure of the present utility model at least has following advantages:
1. energy-conservation road structure of the present utility model, middle surface layer adopts rubber asphalt high-modulus asphalt concrete to improve the integral rigidity of surface layer, upper basic unit in base layer structure adopts flexible bituminous concrete, i.e. cold in-plant recycling emulsified bitulith, employing low content cement stabilized gravel of going to a grassroots level reduces the rigidity of basic unit, make road structure stiffness variation more continuous, the durability of road structure is effectively improve while ensureing bearing capacity, extend Road Service Life, reduce road maintenance frequency and maintenance cost, investigate from life cycle management angle, there is energy-saving and emission-reduction benefit.
2. energy-conservation road structure of the present utility model, upper layer adopts cold mixing cold-application technology can reduce energy consumption and waste discharge; Middle surface layer adopts rubber crumb modified asphalt compound, can recycle junked tire; Cutting optimal and upper basic unit all use regenerating mixture, can recycle old bitumen pavement material; Employing low content cement stabilized gravel of going to a grassroots level decreases the consumption of cement, and whole road structure has the benefit of low-carbon environment-friendly, energy-saving and emission-reduction.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the energy-conservation road structure of the utility model;
Implication is marked: 1. normal temperature bituminous concrete upper layer in figure, 2. surface layer in rubber asphalt high-modulus asphalt concrete, 3. hot in-plant reclaimed asphalt concrete cutting optimal, 4. basic unit on cold in-plant recycling emulsified bitulith, 5. low content cement stabilized gravel is gone to a grassroots level, 6. two-ash soil subbase.
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, detailed description of the invention of the present utility model is described in detail as follows.
The structural representation of the energy-conservation road structure of the utility model as shown in Figure 1, includes basic unit 4 on surface layer 2 in normal temperature bituminous concrete upper layer 1, rubber asphalt high-modulus asphalt concrete, hot in-plant reclaimed asphalt concrete cutting optimal 3, cold in-plant recycling emulsified bitulith, low content cement stabilized gravel goes to a grassroots level 5 and two-ash soil subbase 6.
Energy-conservation road structure of the present utility model is disposed with surface layer, basic unit and subbase from top to bottom, wherein surface layer comprises the thick hot in-plant reclaimed asphalt concrete cutting optimal 3 of surface layer 2 and 8cm in the thick rubber asphalt high-modulus asphalt concrete of the thick normal temperature bituminous concrete upper layer 1 of 4cm, 6cm from top to bottom, the low content cement stabilized gravel that basic unit from top to bottom comprises basic unit 4 and 18cm on the thick cold in-plant recycling emulsified bitulith of 12cm thick goes to a grassroots level 5, and wherein subbase is the two-ash soil subbase 6 that 20cm is thick.
In the utility model,
Normal temperature bituminous concrete upper layer 1 refers to: normal temperature asphalt modifier mixes A-70# or the A-90# bi tumenf orr oad of " JTG F40-2004 " regulation and stipulation, and adopts cold working to be prepared into AC-13 type normal temperature bituminous concrete with gathering materials.Normal temperature asphalt modifier volume is as shown in table 1, and asphalt content is about 4.85%, and the consumption that gathers materials is about 95.1%.
Table 1 normal temperature asphalt modifier volume
Note: area of heavy rainfull climate type is with reference to heavy, extra heavy road traffic grade.
In rubber asphalt high-modulus asphalt concrete, surface layer 2 refers to: in bituminous cements, mix the rubber powder particle of about 18%, and processing is prepared into AC-20 type rubber asphalt high-modulus asphalt concrete together with gathering materials.Gather materials and adopt gap gradation design, suitably improve the content of more than 4.75mm coarse aggregate.Rubber asphalt consumption about 6.1%, gather materials consumption about 93.9%.
Hot in-plant reclaimed asphalt concrete cutting optimal 3 refers to: gather materials and can mix 30% ~ 50% milling material, and 30% is good, and is prepared into AC-25 type hot in-plant reclaimed asphalt concrete with asphalt mixing, and asphalt content is about 3.9%, and the consumption that gathers materials is about 96.1%.
On cold in-plant recycling emulsified bitulith, basic unit 4 refers to: gather materials and can mix 90% ~ 100% milling material, and use mulseal to be prepared into ATB-25 type cold in-plant recycling emulsified bitulith as modifier by cold working, Asphalt emulsion content is about 4.3%, and the consumption that gathers materials is about 95.7%.
Low content cement stabilized gravel is gone to a grassroots level and 5 to be referred to: adopt lower cement consumption, be generally 2% ~ 4%, optimum moisture content about 5%, the consumption that gathers materials is 96% ~ 98%.
Two-ash soil subbase 6 refers to: adopt lime, flyash and native mix to form, lime consumption is about 12%, and flyash consumption is about 28%, and native consumption is about 60%.
The energy-conservation road structure that the utility model proposes, adopts thicker asphalt concrete structure layer, improves road structure durability, extends Road Service Life; Cutting optimal and upper basic unit adopt regeneration concrete, and upper layer and upper basic unit adopt cold mixing cold-application construction technology, have the benefit of low-carbon environment-friendly, energy-saving and emission-reduction.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. an energy-conservation road structure, is characterized in that: described energy-conservation road structure includes surface layer, basic unit and subbase from top to bottom successively,
Described surface layer is layered composite structure, and described surface layer includes surface layer (2) and hot in-plant reclaimed asphalt concrete cutting optimal (3) in normal temperature bituminous concrete upper layer (1), rubber asphalt high-modulus asphalt concrete from top to bottom successively;
Described basic unit is layered composite structure, and described basic unit includes basic unit (4) and low content cement stabilized gravel on cold in-plant recycling emulsified bitulith from top to bottom successively and goes to a grassroots level (5);
Described hot in-plant reclaimed asphalt concrete cutting optimal (3) is arranged on the upper surface of basic unit (4) on cold in-plant recycling emulsified bitulith;
Described subbase is two-ash soil subbase (6), described low content cement stabilized gravel go to a grassroots level (5) be arranged on described two-ash soil subbase (6) upper surface.
2. energy-conservation road structure according to claim 1, is characterized in that: the thickness of described normal temperature bituminous concrete upper layer (1) is 3cm ~ 5cm.
3. energy-conservation road structure according to claim 1, is characterized in that: in described rubber asphalt high-modulus asphalt concrete, the thickness of surface layer (2) is 5cm ~ 8cm.
4. energy-conservation road structure according to claim 1, is characterized in that: the thickness of described hot in-plant reclaimed asphalt concrete cutting optimal (3) is 7cm ~ 10cm.
5. energy-conservation road structure according to claim 1, is characterized in that: on described cold in-plant recycling emulsified bitulith, the thickness of basic unit (4) is 8cm ~ 14cm.
6. energy-conservation road structure according to claim 1, is characterized in that: the go to a grassroots level thickness of (5) of described low content cement stabilized gravel is 15cm ~ 20cm.
7. the energy-conservation road structure according to any one of claim 1 ~ 6, is characterized in that: the thickness of described two-ash soil subbase (6) is 15cm ~ 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007403.9U CN204385576U (en) | 2015-01-06 | 2015-01-06 | A kind of energy-conservation road structure |
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| CN201520007403.9U CN204385576U (en) | 2015-01-06 | 2015-01-06 | A kind of energy-conservation road structure |
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| CN204385576U true CN204385576U (en) | 2015-06-10 |
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| CN201520007403.9U Withdrawn - After Issue CN204385576U (en) | 2015-01-06 | 2015-01-06 | A kind of energy-conservation road structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322225A (en) * | 2018-10-24 | 2019-02-12 | 山东省交通科学研究院 | A kind of multi-layer recycled functional layer drainage crack resistance type asphalt pavement maintenance structure |
| CN112832087A (en) * | 2021-01-12 | 2021-05-25 | 山东省交通科学研究院 | Full-flexible plant-mixed hot recycling asphalt pavement structure |
-
2015
- 2015-01-06 CN CN201520007403.9U patent/CN204385576U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322225A (en) * | 2018-10-24 | 2019-02-12 | 山东省交通科学研究院 | A kind of multi-layer recycled functional layer drainage crack resistance type asphalt pavement maintenance structure |
| CN112832087A (en) * | 2021-01-12 | 2021-05-25 | 山东省交通科学研究院 | Full-flexible plant-mixed hot recycling asphalt pavement structure |
| CN112832087B (en) * | 2021-01-12 | 2022-06-07 | 山东省交通科学研究院 | Full-flexible plant-mixing hot recycling asphalt pavement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Energy-saving pavement structure Effective date of registration: 20190927 Granted publication date: 20150610 Pledgee: Bank of Jiangsu, Limited by Share Ltd, Nanjing City Branch Pledgor: JIANGSU SINOROAD ENGINEERING TECHNOLOGY INSTITUTE CO., LTD. Registration number: Y2019980000211 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191203 Granted publication date: 20150610 Pledgee: Bank of Jiangsu, Limited by Share Ltd, Nanjing City Branch Pledgor: JIANGSU SINOROAD ENGINEERING TECHNOLOGY INSTITUTE CO., LTD. Registration number: Y2019980000211 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20210304 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20210304 |