CN206143559U - High -performance cold regeneration road surface structure - Google Patents
High -performance cold regeneration road surface structure Download PDFInfo
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- CN206143559U CN206143559U CN201620833920.6U CN201620833920U CN206143559U CN 206143559 U CN206143559 U CN 206143559U CN 201620833920 U CN201620833920 U CN 201620833920U CN 206143559 U CN206143559 U CN 206143559U
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Abstract
The utility model discloses a high -performance cold regeneration road surface structure, for laminated composite structure, laminated composite structure top -down is including last surface course, well surface course under, surface course, cold regeneration basic unit, underlayment and bed course, wherein cold regeneration basic unit is the cold regeneration mixture basic unit of the thick emulsified asphalt of 10~15cm. The utility model discloses the cold regeneration road surface structure that proposition pitch flexible layer is thick, semi rigid base course is thin of novelty is arranged in highway to change expansion project the cold regeneration mixture of emulsified asphalt, has better low carbon environmental protection efficiency, can be used to engineering fields such as highway is newly -built, reorganization and expansion, and the range of application is wider.
Description
Technical field
The utility model is related to a kind of path layer pavement structure, more particularly to a kind of high performance cold-regenerated road surface structure.
Background technology
With the continuous growth of the volume of traffic, built highway is difficult to meet Public Traveling demand, and highway changes
Extending oneself becomes highway engineering in China development trend.It is cost-effective in order to reduce the stacking of milling waste, realize that highway changes
Enlarging low-carbon environment-friendly requires that cold recycling technology arises at the historic moment in highway extension project.But cold-regenerated road surface structure is to change
One big difficult point of extension project design, if structure design is unreasonable, causes reflection cracking in a pavement, Top-down cracks and rut
The generation of disease, so as to reduce the service life on road surface.Therefore, a kind of rational cold-regenerated road surface structure is designed, effectively
The generation of disease is prevented, pavement durability is improved, pavement maintenance cost is reduced, is current urgent problem.
In view of the defect that above-mentioned existing pavement structure is present, the design people, positive in addition research and innovation, to founding
The high performance cold-regenerated road surface structure of a kind of new structure so as to more practicality.
Utility model content
Main purpose of the present utility model is the defect for overcoming existing pavement structure to exist, and provides a kind of new
High performance cold-regenerated road surface structure, improves the anti-rut behavior and cracking resistance on road surface, thus more suitable for practicality, and has
Value in industry.
The purpose of this utility model and solve its technical problem and employ the following technical solutions to realize.According to this practicality
The high performance cold-regenerated road surface structure of new proposition, is layered composite structure, and layered composite construction includes from top to bottom
There are upper layer, middle surface layer, cutting optimal, cold renewal basic unit, underlayment and bed course, wherein the cold renewal basic unit is that 10 ~ 15cm is thick
Cold Recycled Mixture with Emulsified Asphalt basic unit.
Further, aforesaid high performance cold-regenerated road surface structure, the thickness of the upper layer is 4 ~ 6cm, described
Upper layer is SMA-13 asphalt upper layers.
Further, aforesaid high performance cold-regenerated road surface structure, the thickness of the middle surface layer is 6 ~ 8cm, described
Middle surface layer is surface layer in sup-20 asphalts, using SBS modified pitch.
Further, aforesaid high performance cold-regenerated road surface structure, the thickness of the cutting optimal is 6 ~ 8cm, described
Cutting optimal is sup-20 asphalt cutting optimals, using heavy traffic 50# matrix pitches.
Further, aforesaid high performance cold-regenerated road surface structure, the thickness of the underlayment is 15 ~ 25cm, institute
Underlayment is stated for cement stabilized macadam underlayment.
Further, aforesaid high performance cold-regenerated road surface structure, the thickness of the bed course is 25 ~ 35cm, described
Bed course is granular cushion.
High performance cold-regenerated road surface structure disclosed in the utility model, applies highway is newly-built, reconstruction and extension project
Deng field.
By above-mentioned technical proposal, the anti-rut behavior and cracking resistance that road surface can be effectively improved of the present utility model, extremely
There are less following advantages：
High performance cold-regenerated road surface structure disclosed in the utility model, by using Cold Recycled Mixture with Emulsified Asphalt as
Basic unit, can fully recycle the milling waste of bituminous paving, and the waste material reduced in Expressway Extension Project is stacked, section
About cost, compared with conventional ATB compounds, cost-effective more than 40%, the function with low-carbon environment-friendly；Surface layer adopts anti-car
Two kinds of asphalt combinations of rut performance good sup-20 and SMA-13, can effectively improve the Rut resistance energy of former pavement structure
Power, prolonging service life of pavement；Pitch flexible layer is thicker in cold-regenerated road surface structure, and semi-rigid type base is relatively thin, can be significantly
Lift the Reflective Cracking Resistance of semi-rigid asphalt pavement；Upper layer is using the excellent SMA-13 pitches mixing of cracking resistance
Material, is prevented from the Top-down crack problems that pitch flexible layer thicker belts are come.
The proposition cold-regenerated road surface structure that pitch flexible layer is thicker, semi-rigid type base is relatively thin of the utility model novelty,
Cold Recycled Mixture with Emulsified Asphalt is used in Expressway Extension Project, with preferable low-carbon environment-friendly efficiency, be can be used for
The engineering fields such as highway is newly-built, reorganization and expansion, range of application is wider.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Description of the drawings
Fig. 1 is a kind of high performance cold-regenerated road surface structure schematic diagram of the present utility model；
Connotation is marked in figure：1. upper layer, 2. in surface layer, 3. cutting optimal, 4. cold renewal basic unit, 5. underlayment, 6. bed course.
Specific embodiment
Further to illustrate that the utility model is to reach technological means and effect that predetermined utility model purpose is taken,
Below in conjunction with accompanying drawing and preferred embodiment, specific embodiment of the present utility model is described in detail as after.
Embodiment 1
Of the present utility model high performance cold-regenerated road surface structure schematic diagram as shown in Figure 1, sets gradually from top to bottom
There are upper layer 1, middle surface layer 2, cutting optimal 3, cold renewal basic unit 4, underlayment 5 and bed course 6, wherein upper layer 1 is the SMA-13 of 4cm
Asphalt, using SBS modified pitch, proportioning is as shown in table 1；Middle surface layer 2 is the sup-20 asphalts of 6cm, adopts
SBS modified pitch, proportioning is as shown in table 2；Cutting optimal 3 is the sup-20 asphalts of 8cm, is dripped using heavy traffic 50# matrix
Green grass or young crops, proportioning is as shown in table 3；Cold renewal basic unit 4 is the thick cement-emulsified asphalt cold regeneration mixes of 12cm, and emulsified asphalt volume is
3.5%, cement mixing content is 1.5%, and optimum moisture content is 3.6%, as shown in table 4 with composition；Underlayment adopts the cement stabilizing of 20cm
Rubble, as shown in table 5, cement is PO42.5 to concrete composition, and cement dose is 3.5%；Bed course is the thick graded broken stones of 30cm, is had
Body composition is as shown in table 6.
Embodiment 2
Of the present utility model high performance cold-regenerated road surface structure schematic diagram as shown in Figure 1, sets gradually from top to bottom
There are upper layer 1, middle surface layer 2, cutting optimal 3, cold renewal basic unit 4, underlayment 5 and bed course 6, wherein upper layer 1 is the SMA-13 of 5cm
Asphalt, using SBS modified pitch, proportioning is as shown in table 1；Middle surface layer 2 is the sup-20 asphalts of 6cm, adopts
SBS modified pitch, proportioning is as shown in table 2；Cutting optimal 3 is the sup-20 asphalts of 6cm, is dripped using heavy traffic 50# matrix
Green grass or young crops, proportioning is as shown in table 3；Cold renewal basic unit 4 is the thick cement-emulsified asphalt cold regeneration mixes of 15cm, and emulsified asphalt volume is
3.7%, cement mixing content is 1.4%, and optimum moisture content is 3.5%, and gradation composition is as shown in table 4；Underlayment is steady using the cement of 22cm
Determine rubble, as shown in table 5, cement is PO32.5 to concrete composition, and cement dose is 3.8%；Bed course is the thick graded broken stones of 28cm,
Concrete composition is as shown in table 6.
Embodiment 3
Of the present utility model a kind of high performance cold-regenerated road surface structure schematic diagram as shown in Figure 1, from top to bottom successively
Upper layer 1, middle surface layer 2, cutting optimal 3, cold renewal basic unit 4, underlayment 5 and bed course 6 are provided with, wherein upper layer 1 is 5cm's
SMA-13 asphalts, using SBS modified pitch, proportioning is as shown in table 1；Middle surface layer 2 mixes for the sup-20 pitches of 6cm
Material, using SBS modified pitch, proportioning is as shown in table 2；Cutting optimal 3 is the sup-20 asphalts of 7cm, using heavy traffic 50#
Matrix pitch, proportioning is as shown in table 3；Cold renewal basic unit 4 is 15cm thick cement-emulsified asphalt cold regeneration mix, emulsified asphalt
Volume is 3.5%, and cement mixing content is 1.6%, and optimum moisture content is 3.6%, and gradation composition is as shown in table 4；Underlayment is using 25cm's
Cement stabilized macadam, as shown in table 5, cement is PO42.5 to concrete composition, and cement dose is 3.4%；Bed course is that the thick levels of 35cm are matched somebody with somebody
Rubble, concrete composition is as shown in table 6.
The SMA-13 Mixture Ratios of table 1
The sup-20 Mixture Ratios of table 2（SBS modified pitch）
The sup-20 Mixture Ratios of table 3（Heavy traffic 50# pitches）
The Cold Recycled Mixture with Emulsified Asphalt level of table 4 is matched somebody with somebody
The cement stabilized macadam level of table 5 is matched somebody with somebody
The graded broken stone mixture of table 6
From embodiment 1 ~ 3 as can be seen that high performance cold-regenerated road surface structure of the present utility model, pitch flexible layer compared with
Thick, semi-rigid type base is relatively thin, and using this structure the Reflective Cracking Resistance of half firm Base Asphalt Pavement can be significantly lifted；Together
The excellent SMA-13 asphalts of Shi Caiyong cracking resistances, are prevented from the Top-down cracks that pitch flexible layer thicker belts are come
Problem；Additionally, surface layer can be effectively improved using two kinds of asphalt combinations of anti-rut behavior good sup-20 and SMA-13
The rutting resistance of former pavement structure, extends service life of road surface；And Cold Recycled Mixture with Emulsified Asphalt is adopted, using road surface
Milling waste, cost-effective, low-carbon environment-friendly.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Restriction, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any ripe
Professional and technical personnel is known, in the range of without departing from technical solutions of the utility model, when in the technology using the disclosure above
Appearance makes a little change or is modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solutions of the utility model
Hold, above example is made any simple modification, equivalent variations and modification according to technical spirit of the present utility model, still
Belong in the range of technical solutions of the utility model.
Claims (4)
1. a kind of high performance cold-regenerated road surface structure, it is characterised in that：For layered composite structure, layered composite construction from
Top to bottm is disposed with upper layer（1）, middle surface layer（2）, cutting optimal（3）, cold renewal basic unit（4）, underlayment（5）And bed course
（6）, the cold renewal basic unit（4）For the thick Cold Recycled Mixture with Emulsified Asphalt basic units of 10 ~ 15cm；
The upper layer（1）Thickness be 4 ~ 6cm, the upper layer（1）For SMA-13 asphalt upper layers；
The middle surface layer（2）Thickness be 6 ~ 8cm, the middle surface layer（2）For surface layer in sup-20 asphalts.
2. high performance cold-regenerated road surface structure according to claim 1, it is characterised in that：The cutting optimal（3）Thickness
Spend for 6 ~ 8cm, the cutting optimal（3）For sup-20 asphalt cutting optimals.
3. the high performance cold-regenerated road surface structure according to any one of claim 1 ~ 2, it is characterised in that：The underlayment
（5）Thickness be 15 ~ 25cm, the underlayment（5）For cement stabilized macadam underlayment.
4. high performance cold-regenerated road surface structure according to claim 3, it is characterised in that：The bed course（6）Thickness
For 25 ~ 35cm, the bed course（6）For granular cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620833920.6U CN206143559U (en) | 2016-08-03 | 2016-08-03 | High -performance cold regeneration road surface structure |
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| CN201620833920.6U CN206143559U (en) | 2016-08-03 | 2016-08-03 | High -performance cold regeneration road surface structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386028A (en) * | 2017-08-25 | 2017-11-24 | 上海道基环保科技有限公司 | Road three-hybrid system cold in place recycling engineering method |
| CN110670439A (en) * | 2019-10-12 | 2020-01-10 | 大连海事大学 | Recycled asphalt mixture pavement |
-
2016
- 2016-08-03 CN CN201620833920.6U patent/CN206143559U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386028A (en) * | 2017-08-25 | 2017-11-24 | 上海道基环保科技有限公司 | Road three-hybrid system cold in place recycling engineering method |
| CN110670439A (en) * | 2019-10-12 | 2020-01-10 | 大连海事大学 | Recycled asphalt mixture pavement |
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