CN205382375U - Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up - Google Patents
Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up Download PDFInfo
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- CN205382375U CN205382375U CN201620177200.9U CN201620177200U CN205382375U CN 205382375 U CN205382375 U CN 205382375U CN 201620177200 U CN201620177200 U CN 201620177200U CN 205382375 U CN205382375 U CN 205382375U
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- Prior art keywords
- sbs modified
- pavement structure
- modified asphalt
- bituminous pavement
- high performance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Road Paving Structures (AREA)
Abstract
The utility model belongs to the road engineering field relates to a permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up, it stablizes the rubble and goes to a grassroots level to lay under surface course on the ultra high performance concrete UHPC on the soil matrix, the SBS modified asphalt concrete surface course, graded broken stone upper base layer and cement in proper order including top -down, under last surface course of ultra high performance concrete UHPC and the SBS modified asphalt concrete between the surface course, under the SBS modified asphalt concrete between surface course and the graded broken stone upper base layer and graded broken stone upper base layer and cement stablize the rubble and all be provided with the tie coat between going to a grassroots level. The utility model discloses use multipurposely the good bearing capacity's of ultra high performance concrete UHPC's high strength, high tenacity, low dynamic porosity and SBS modified asphalt concrete characteristics to with the two reasonable combination, improve grow up the road surface security of longitudinal gradient highway section, travelling comfort and durability, prolong road life, reduce the maintenance cost of road.
Description
Technical field
This utility model belongs to field of road, relates to asphalt pavement structure, particularly relates to a kind of durable type bituminous pavement structure suitable in Large Longitudinal Slope section.
Background technology
" 7918 net " that 2004 Ministry of Communications's appearance in the end of the year " national expressway network planning " were determined makes Highway Construction in Mountainous Area welcome new peak.In Highway Construction in Mountainous Area, river, Freeway of Mountain Range, mountain range are numerous, and road alignment is relatively poor, and this makes more to consider Pavement Condition and security performance while quickly building up.Cement concrete pavement is seldom applied owing to anti-slide performance is not enough in mountainous area highway, and asphalt pavement rut is undoubtedly the serious problems that asphalt pavement on mountain freeway faces.Investigation finds, the serious region of same highway rut is all at long steep slope road section, this is because the speed that heavy-duty vehicle is in section, hillside is generally 10～20km/h, the conversion rule according to rheol universal law application of temperature Yu time, long-time bearing load is equivalent with hot conditions.Meanwhile, the increase of the gradient, the lateral shear effect that vehicle road pavement produces increases therewith, accelerates the generation of road surface permanent deformation.Therefore, the durable type bituminous pavement structure in the Large Longitudinal Slope section of reasonable, improve long abrupt slope bituminous paving mechanical state, be the problem currently cannot avoided.
Utility model content
The purpose of this utility model is in that to provide a kind of durable type bituminous pavement structure suitable in Large Longitudinal Slope section, the feature of the bearing capacity that this pavement structure comprehensive utilization high intensity of ultra-high performance concrete UHPC, high tenacity, low voidage and SBS modified asphalt concrete are excellent, and by the two reasonable combination, improve the road surface safety of Large Longitudinal Slope section, comfortableness and durability, extend Road Service Life, reduce the maintenance cost of road.
For achieving the above object, this utility model adopts following technical proposals:
A kind of durable type bituminous pavement structure suitable in Large Longitudinal Slope section, it is characterised in that: on ultra-high performance concrete UHPC upper layer that the described durable type bituminous pavement structure suitable in Large Longitudinal Slope section includes being laid on soil matrix from top to bottom successively, SBS modified asphalt concrete cutting optimal, graded broken stone, basic unit and cement stabilized macadam are gone to a grassroots level；Between described ultra-high performance concrete UHPC upper layer and SBS modified asphalt concrete cutting optimal, on SBS modified asphalt concrete cutting optimal and graded broken stone, basic unit and cement stabilized macadam are provided with tack coat between going to a grassroots level between basic unit and on graded broken stone.
As preferably, the comprcssive strength of the ultra-high performance concrete UHPC upper layer that this utility model adopts is not less than 130Mpa, and the thickness of described ultra-high performance concrete UHPC upper layer is not less than 100mm.
As preferably, the SBS modified asphalt concrete cutting optimal that this utility model adopts adopts AC-25 type grating；The thickness of described SBS modified asphalt concrete cutting optimal is not less than 100mm.
As preferably, on the graded broken stone that this utility model adopts, the thickness of basic unit is not less than 100mm.
As preferably, the thickness that the cement stabilized macadam that this utility model adopts is gone to a grassroots level is not less than 150mm.
As preferably, the tack coat that this utility model adopts adopts SBS modified emulsifying asphalt tack coat, and the spreading amount of described tack coat is 0.3～0.6L/m2。
This utility model compared with the prior art, has the following advantages and beneficial effect:
This utility model provides a kind of durable type bituminous pavement structure suitable in Large Longitudinal Slope section, and on ultra-high performance concrete UHPC upper layer that this pavement structure includes being laid on soil matrix from top to bottom successively, SBS modified asphalt concrete cutting optimal, graded broken stone, basic unit and cement stabilized macadam are gone to a grassroots level；Between ultra-high performance concrete UHPC upper layer and SBS modified asphalt concrete cutting optimal, on SBS modified asphalt concrete cutting optimal and graded broken stone, basic unit and cement stabilized macadam are provided with tack coat between going to a grassroots level between basic unit and on graded broken stone.Durable type bituminous pavement structure suitable in Large Longitudinal Slope section provided by the utility model is compared with the Common Pavement Structure of existing Large Longitudinal Slope section, with ultra-high performance concrete UHPC replacing asphalt concrete upper layer, pavement structure integrated carrying ability on the one hand, avoid the generation of asphalt pavement rut, on the other hand due to ultra-high performance concrete UHPC high intensity, high tenacity, low voidage feature, improve the abrasion resistance of surface groove, road-ability improves further.The feature of the bearing capacity that this utility model comprehensive utilization high intensity of ultra-high performance concrete UHPC, high tenacity, low voidage and SBS modified asphalt concrete are excellent, and by the two reasonable combination, improve the road surface safety of Large Longitudinal Slope section, comfortableness and durability, extend Road Service Life, reduce the maintenance cost of road.
Accompanying drawing explanation
Fig. 1 is the structural representation of the durable type bituminous pavement structure suitable in Large Longitudinal Slope section provided by the utility model；
Wherein:
1-ultra-high performance concrete UHPC upper layer；2-SBS modified asphalt concrete cutting optimal；Basic unit on 3-graded broken stone；4-cement stabilized macadam is gone to a grassroots level；5-soil matrix；6-tack coat.
Detailed description of the invention
In conjunction with drawings and Examples, this utility model is further described, but this utility model is not limited only to embodiment disclosed below.
Referring to Fig. 1, this utility model provides a kind of durable type bituminous pavement structure suitable in Large Longitudinal Slope section, and on ultra-high performance concrete UHPC upper layer 1 that this pavement structure includes being laid on soil matrix 5 from top to bottom successively, SBS modified asphalt concrete cutting optimal 2, graded broken stone, basic unit 3 and cement stabilized macadam go to a grassroots level 4；Basic unit 3 goes to a grassroots level with cement stabilized macadam and all adopts tack coat 6 to be connected between 4 between ultra-high performance concrete UHPC upper layer 1 with SBS modified asphalt concrete cutting optimal 2, between SBS modified asphalt concrete cutting optimal 2 and basic unit on graded broken stone 3 and on graded broken stone.
Ultra-high performance concrete UHPC upper layer 1, comprcssive strength is not less than 130MPa, and thickness is not less than 100mm.
SBS modified asphalt concrete cutting optimal 2, employing grating is AC-25, and Colophonium adopts SBS modified pitch, and thickness is not less than 100mm.
Basic unit 3 on graded broken stone, thickness is not less than 100mm.
Cement stabilized macadam goes to a grassroots level 4, and thickness is not less than 150mm.
Tack coat 6 adopts SBS modified emulsifying asphalt, and spreading amount is 0.3～0.6L/m2；It is connected with SBS modified emulsifying asphalt adhesion coating 6 between ultra-high performance concrete UHPC upper layer 1 with SBS modified asphalt concrete cutting optimal 2.It is connected with SBS modified emulsifying asphalt adhesion coating 6 between SBS modified asphalt concrete cutting optimal 2 and basic unit on graded broken stone 3.On graded broken stone, basic unit 3 goes to a grassroots level with cement stabilized macadam and is connected with SBS modified emulsifying asphalt adhesion coating 6 between 4.
Claims (6)
1. the durable type bituminous pavement structure being applicable to Large Longitudinal Slope section, it is characterised in that: on ultra-high performance concrete UHPC upper layer that the described durable type bituminous pavement structure suitable in Large Longitudinal Slope section includes being laid on soil matrix from top to bottom successively, SBS modified asphalt concrete cutting optimal, graded broken stone, basic unit and cement stabilized macadam are gone to a grassroots level；Between described ultra-high performance concrete UHPC upper layer and SBS modified asphalt concrete cutting optimal, on SBS modified asphalt concrete cutting optimal and graded broken stone, basic unit and cement stabilized macadam are provided with tack coat between going to a grassroots level between basic unit and on graded broken stone.
2. the durable type bituminous pavement structure suitable in Large Longitudinal Slope section according to claim 1, it is characterized in that: the comprcssive strength of described ultra-high performance concrete UHPC upper layer is not less than 130Mpa, and the thickness of described ultra-high performance concrete UHPC upper layer is not less than 100mm.
3. the durable type bituminous pavement structure suitable in Large Longitudinal Slope section according to claim 2, it is characterised in that: described SBS modified asphalt concrete cutting optimal adopts AC-25 type grating；The thickness of described SBS modified asphalt concrete cutting optimal is not less than 100mm.
4. the durable type bituminous pavement structure suitable in Large Longitudinal Slope section according to claim 3, it is characterised in that: on described graded broken stone, the thickness of basic unit is not less than 100mm.
5. the durable type bituminous pavement structure suitable in Large Longitudinal Slope section according to claim 4, it is characterised in that: the thickness that described cement stabilized macadam is gone to a grassroots level is not less than 150mm.
6. according to the arbitrary described durable type bituminous pavement structure being applicable to Large Longitudinal Slope section of claim 1-5, it is characterised in that: described tack coat adopts SBS modified emulsifying asphalt tack coat, and the spreading amount of described tack coat is 0.3 ~ 0.6L/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620177200.9U CN205382375U (en) | 2016-03-08 | 2016-03-08 | Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620177200.9U CN205382375U (en) | 2016-03-08 | 2016-03-08 | Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205382375U true CN205382375U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620177200.9U Expired - Fee Related CN205382375U (en) | 2016-03-08 | 2016-03-08 | Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205382375U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059529A (en) * | 2017-01-16 | 2017-08-18 | 湖南大学 | Embedding stone structure and construction method between ultra-high performance concrete surface and upper layer |
| CN107237256A (en) * | 2017-08-09 | 2017-10-10 | 上海市市政规划设计研究院 | Long-acting endurance bridge deck pavement structure |
| CN115506191A (en) * | 2022-09-08 | 2022-12-23 | 广西北投交通养护科技集团有限公司 | Durable asphalt pavement structure suitable for non-heavy traffic grade and design method |
-
2016
- 2016-03-08 CN CN201620177200.9U patent/CN205382375U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059529A (en) * | 2017-01-16 | 2017-08-18 | 湖南大学 | Embedding stone structure and construction method between ultra-high performance concrete surface and upper layer |
| CN107237256A (en) * | 2017-08-09 | 2017-10-10 | 上海市市政规划设计研究院 | Long-acting endurance bridge deck pavement structure |
| CN115506191A (en) * | 2022-09-08 | 2022-12-23 | 广西北投交通养护科技集团有限公司 | Durable asphalt pavement structure suitable for non-heavy traffic grade and design method |
| CN115506191B (en) * | 2022-09-08 | 2023-10-13 | 广西北投交通养护科技集团有限公司 | Durable asphalt pavement structure suitable for non-extra-heavy traffic grade and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20190308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |