CN203923837U - A kind of gap grading Rubber-Asphalt Pavement structure - Google Patents
A kind of gap grading Rubber-Asphalt Pavement structure Download PDFInfo
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- CN203923837U CN203923837U CN201420268205.3U CN201420268205U CN203923837U CN 203923837 U CN203923837 U CN 203923837U CN 201420268205 U CN201420268205 U CN 201420268205U CN 203923837 U CN203923837 U CN 203923837U
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- 239000010426 asphalt Substances 0.000 title claims abstract description 47
- 239000004568 cement Substances 0.000 claims abstract description 35
- 239000010410 layer Substances 0.000 claims abstract description 34
- 239000002344 surface layer Substances 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of gap grading Rubber-Asphalt Pavement structure, by roadbed top by the upper layer of laying successively from top to bottom, in surface layer, lower surface layer, cement stabilized macadam base and cement stabilized macadam subbase form, wherein: upper layer is that thickness is the ARGM-13 type gap grading rubber-asphalt mixture layer of 4cm; Middle surface layer is that thickness is the AC-20C type dense bitumen mixing bed of material of 6cm; Lower surface layer is that thickness is the ATB-30 type Asphalt Stabilized Macadam layer of 10cm; Cement stabilized macadam base and cement stabilized macadam subbase all adopt cement and rubble to form, and wherein, the thickness of cement stabilized macadam base is 40cm, and the thickness of cement stabilized macadam subbase is 20cm.Upper layer adopts the cage construction of gap grading rubber-asphalt mixture layer, can play noise reduction, improve the comfortableness of driving, and improve pavement durability, each deck does not all adopt expensive SBS pitch significantly to reduce highway construction cost, reduces maintenance of surface expense.
Description
Technical field
The utility model belongs to Communication and Transportation Engineering field, relates in particular to a kind of gap grading Rubber-Asphalt Pavement form of structure, is mainly used in the new construction of speedway and Class I highway.
Background technology
China's speedway and each deck of Class I highway generally adopt AC or SMA type bituminous mixture at present, in order to improve compound functional performance, middle upper layer pitch used all adopts SBS modified bitumen, wherein SMA type bituminous mixture also needs to add lignin fibre to guarantee having enough matizhis in compound, from effect, these two kinds of mix type all show good result of use.But use modified bitumen and add fiber-like material, cause the cost of highway construction significantly to increase, this has run counter to the original intention of China's structure " resource-conserving ", " environmentally friendly " transport development mode.Under this background, be necessary to probe into a kind of road structure of alternative SBS modified bitumen, to reducing the construction costs, can guarantee Pavement Condition again simultaneously.
Summary of the invention
In order to solve the problem that can guarantee again Pavement Condition under the prerequisite of not using SBS modified bitumen; the purpose of this utility model is; a kind of gap grading Rubber-Asphalt Pavement structure is provided; this structure by application of rubber asphalt in highway construction; not only can energy conservation, the harm that causes of protection of the environment, minimizing waste old; can also improve the functional performance on road surface, there are important economic results in society.
For realizing above-mentioned task, the utility model adopts following technical solution:
A gap grading Rubber-Asphalt Pavement structure, is characterized in that, by roadbed top by the upper layer of laying successively from top to bottom, in surface layer, lower surface layer, cement stabilized macadam base and cement stabilized macadam subbase form, wherein:
Described upper layer is that thickness is the ARGM-13 type gap grading rubber-asphalt mixture layer of 4cm;
Described middle surface layer is that thickness is the AC-20C type dense bitumen mixing bed of material of 6cm;
Described lower surface layer is that thickness is the ATB-30 type Asphalt Stabilized Macadam layer of 10cm;
Described cement stabilized macadam base and cement stabilized macadam subbase all adopt cement and rubble to form, and wherein, the thickness of cement stabilized macadam base is 40cm, and the thickness of cement stabilized macadam subbase is 20cm.
Other feature of the present utility model is:
Described ARGM-13 type gap grading rubber-asphalt mixture layer is comprised of rubber powder and matrix pitch, and matrix pitch used is A-90 bi tumenf orr oad or A-70 bi tumenf orr oad, and wherein the mixed ratio of rubber powder and matrix pitch example is 23:100.
Described AC-20 type dense bitumen mixing bed of material medium pitch adopts A-50 hard bi tumenf orr oad.
Described ATB-30 type Asphalt Stabilized Macadam floor medium pitch adopts A-70 bi tumenf orr oad.
In described cement stabilized macadam base, the mixed ratio of cement and rubble example is cement: rubble=4:100.
In described cement stabilized macadam subbase, the mixed ratio of cement and rubble example is cement: rubble=3.5:100.
The grading limit of the compound in described ARGM-13 type gap grading rubber-asphalt mixture layer is: the quality percentage by 16mm sieve aperture is 100%, quality percentage by 13.2mm sieve aperture is 90%～100%, quality percentage by 9.5mm sieve aperture is 50%～70%, quality percentage by 4.75mm sieve aperture is 20%～34%, quality percentage by 2.36mm sieve aperture is 15～26%, quality percentage by 1.18mm sieve aperture is 14%～24%, quality percentage by 0.6mm sieve aperture is 12%～20%, quality percentage by 0.3mm sieve aperture is 10%～16%, quality percentage by 0.15mm sieve aperture is 7%～12%, quality percentage by 0.057mm sieve aperture is 4%～8%.
The thickness of described upper layer, middle surface layer and lower surface layer all increases or reduces 1cm～3cm.
The grading limit of the compound in described ARGM-13 type gap grading rubber-asphalt mixture layer expands or dwindles 1%～5%.
Gap grading Rubber-Asphalt Pavement structure of the present utility model, tool has the following advantages:
(1) improve pavement durability
Upper layer adopts the cage construction of gap grading rubber-asphalt mixture layer, the rubber asphalt of high consumption wraps on building stones surface, and fill its space, the framework dense structure that whole gap grading rubber-asphalt mixture forms, makes upper layer have stronger anti-rut, good low-temperature cracking-resistance and water stability.Meanwhile, middle surface layer adopts A-50 matrix pitch to replace SBS modified bitumen, when reducing costs, has also guaranteed the performance requirement of the anti-rut of middle surface layer.
(2) there is decrease of noise functions
In the road surface of gap grading rubber-asphalt mixture layer, coarse surface texture makes road surface strengthen damping, and rubber grain can effectively promote road surface elasticity, and then can play noise reduction, improves the effect of the comfortableness of driving.
(3) increase economic efficiency
Each deck all do not adopt expensive SBS pitch (upper layer adopt rubber powder+matrix pitch, in lower surface layer adopt matrix pitch), can significantly reduce highway construction cost.The durability of Rubber-Asphalt Pavement is good simultaneously, can reduce maintenance of surface expense.
(4) improve environmental benefit.
Use rubber powder, can improve the effective rate of utilization of junked tire, reduced and disposed a series of environmental protection difficult problems that junked tire brings, meet the principles and policies of the current Developing Circulation Economy of China.
Accompanying drawing explanation
Fig. 1 is gap grading Rubber-Asphalt Pavement structure schematic cross-sectional view of the present utility model.
Mark in figure represents respectively: 1, upper layer; 2, middle surface layer; 3, lower surface layer; 4, cement stabilized macadam base; 5, cement stabilized macadam subbase; 6, roadbed.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The specific embodiment
Referring to Fig. 1, the present embodiment provides a kind of gap grading Rubber-Asphalt Pavement structure, by being arranged in roadbed 6 tops, the upper layer 1 of laying from top to bottom, surface layer 2, lower surface layer 3, cement stabilized macadam base 4, cement stabilized macadam subbase 5, consists of; Wherein:
Upper layer 1 adopts the ARGM-13 type gap grading rubber asphalt bituminous mixture layer that thickness is 4cm, gap grading rubber asphalt bituminous mixture layer is comprised of rubber powder, matrix pitch and mineral aggregate, rubber powder adopts junked tire to be processed into powder, matrix pitch used can adopt A-90 bi tumenf orr oad or A-70 bi tumenf orr oad, and wherein the mixed ratio of rubber powder and matrix pitch example is 23:100.The accurate mix-design of consumption label taking of rubber asphalt, can directly process at the construction field (site).
The grading limit of the compound in ARGM-13 type gap grading rubber-asphalt mixture layer is: the quality percentage by 16mm sieve aperture is 100%, quality percentage by 13.2mm sieve aperture is 90%～100%, quality percentage by 9.5mm sieve aperture is 50%～70%, quality percentage by 4.75mm sieve aperture is 20%～34%, quality percentage by 2.36mm sieve aperture is 15～26%, quality percentage by 1.18mm sieve aperture is 14%～24%, quality percentage by 0.6mm sieve aperture is 12%～20%, quality percentage by 0.3mm sieve aperture is 10%～16%, quality percentage by 0.15mm sieve aperture is 7%～12%, quality percentage by 0.057mm sieve aperture is 4%～8%.
The grading limit of above-mentioned compound can expand or dwindle 1%～5%.
Middle surface layer 2 is that thickness is the AC-20C type bituminous mixture layer of 6cm, and AC-20C type bituminous mixture floor medium pitch adopts A-50 hard bi tumenf orr oad, and its consumption should reduce 0.1～0.2% than standard mix design quantity.
Lower surface layer 3 is that thickness is the ATB-30 type Asphalt Stabilized Macadam layer of 10cm, and ATB-30 type Asphalt Stabilized Macadam floor medium pitch adopts A-70 bi tumenf orr oad, and its consumption should increase by 0.1～0.2% than standard mix design quantity.
The thickness of cement stabilized macadam base 4 is 40cm, cement and rubble, consists of, and the mixed ratio example of cement and rubble is cement: rubble=4:100.
Cement stabilized macadam subbase 5 thickness are 20cm, and wherein the mixed ratio of cement and rubble example is cement: rubble=3.5:100.
When reality is laid, the thickness of upper layer 1, middle surface layer 2 and lower surface layer 3 all can increase or reduce 1cm～3cm.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the technical solution of the utility model, increase and decrease thickness or change grading limit, all belong to the protection domain of the application's technical scheme.
Claims (4)
1. a gap grading Rubber-Asphalt Pavement structure, it is characterized in that, by roadbed (6) top by the upper layer of laying successively from top to bottom (1), in surface layer (2), lower surface layer (3), cement stabilized macadam base (4) and cement stabilized macadam subbase (5) form, wherein:
Described upper layer (1) is that thickness is the ARGM-13 type gap grading rubber-asphalt mixture layer of 4cm;
Described middle surface layer (2) is that thickness is the AC-20C type dense bitumen mixing bed of material of 6cm;
Described lower surface layer (3) is that thickness is the ATB-30 type Asphalt Stabilized Macadam layer of 10cm;
Wherein, the thickness of cement stabilized macadam base (4) is 40cm, and the thickness of cement stabilized macadam subbase (5) is 20cm.
2. gap grading Rubber-Asphalt Pavement structure as claimed in claim 1, is characterized in that, the pitch in the described AC-20C type dense bitumen mixing bed of material adopts A-50 hard bi tumenf orr oad.
3. gap grading Rubber-Asphalt Pavement structure as claimed in claim 1, is characterized in that, described ATB-30 type Asphalt Stabilized Macadam floor medium pitch adopts A-70 bi tumenf orr oad.
4. gap grading Rubber-Asphalt Pavement structure as claimed in claim 1, is characterized in that, the thickness of described upper layer (1), middle surface layer (2) and lower surface layer (3) all increases or reduce 1cm～3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268205.3U CN203923837U (en) | 2014-05-23 | 2014-05-23 | A kind of gap grading Rubber-Asphalt Pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268205.3U CN203923837U (en) | 2014-05-23 | 2014-05-23 | A kind of gap grading Rubber-Asphalt Pavement structure |
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| CN203923837U true CN203923837U (en) | 2014-11-05 |
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| CN201420268205.3U Expired - Fee Related CN203923837U (en) | 2014-05-23 | 2014-05-23 | A kind of gap grading Rubber-Asphalt Pavement structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012739A (en) * | 2016-06-21 | 2016-10-12 | 中国十七冶集团有限公司 | Novel shock absorption pavement structure |
| CN106702844A (en) * | 2016-11-30 | 2017-05-24 | 合诚工程咨询集团股份有限公司 | Pavement structure with low cost, environmental friendliness and long service life |
-
2014
- 2014-05-23 CN CN201420268205.3U patent/CN203923837U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012739A (en) * | 2016-06-21 | 2016-10-12 | 中国十七冶集团有限公司 | Novel shock absorption pavement structure |
| CN106702844A (en) * | 2016-11-30 | 2017-05-24 | 合诚工程咨询集团股份有限公司 | Pavement structure with low cost, environmental friendliness and long service life |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160523 |