CN207091855U - LSPM pavement structure - Google Patents
LSPM pavement structure Download PDFInfo
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- CN207091855U CN207091855U CN201720675062.1U CN201720675062U CN207091855U CN 207091855 U CN207091855 U CN 207091855U CN 201720675062 U CN201720675062 U CN 201720675062U CN 207091855 U CN207091855 U CN 207091855U
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Abstract
The utility model provides a kind of LSPM pavement structure.It includes basic unit and the LSPM layer being arranged on the upside of basic unit；LSPM layer includes rubble, miberal powder, quick lime and the first pitch；First pitch is MAC 70# modified pitch；The rubble of LSPM layer includes the 3rd rubble that the second rubble, the particle diameter that the first rubble, the particle diameter that particle diameter is 19mm to 31.5mm are 9.5mm to 19mm are 4.75mm to 9.5mm, and the aggregate chips that particle diameter is 0mm to 2.36mm.Solve the problems, such as road ponding well, effectively reduce road reflection crack, reduce the total dosage of pitch, reduce cost, substantially reduce the time of close traffic, economic results in society are notable, will develop to scale, standardization, international direction.
Description
Technical field
Pavement structure technical field is the utility model is related to, particularly a kind of LSPM road surface knot
Structure.
Background technology
At present, road is increasingly heavier in the status that urban transportation accounts for, and road seeping phenomenon is also on the rise, only by road outside
Drainage system much can't resolve road ponding problem.When raining in torrents or the rainy day, collection ponding is assembled on road surface, when ponding reaches
During certain depth, road surface easily cracking, threshing is not only resulted in, the service life on road surface is reduced, adds in the future
Maintenance cost, and vehicle and the person can also be damaged.In addition, existing road manufacturing time length, long in time limit, to vehicle
Trip with people causes inconvenience.
Utility model content
The utility model is intended to overcome at least one defect of existing pavement structure, there is provided a kind of large grain diameter water permeability drip
Blue or green mixture pavement structure, it solves the problems, such as road ponding well, effectively reduces road reflection crack, reduces drip
Blue or green total dosage, reduces cost, substantially reduces the time of close traffic, and economic results in society are notable, will be to scale, rule
Generalized, international direction are developed.
Therefore, the utility model provides a kind of LSPM pavement structure, it include basic unit and
The LSPM layer being arranged on the upside of the basic unit；The LSPM layer uses
Framework type asphalt mixture, including rubble, miberal powder, quick lime and the first pitch；First pitch is that MAC-70# is modified drip
It is blue or green；The rubble of the LSPM layer includes the first rubble, the particle diameter that particle diameter is 19mm to 31.5mm
9.5mm to 19mm the second rubble, the 3rd rubble that particle diameter is 4.75mm to 9.5mm, and the stone that particle diameter is 0mm to 2.36mm
Bits；And the match ratio between first rubble, second rubble, the 3rd rubble, the aggregate chips and the quick lime is
40±3：33±2：15±1：11±0.6：1±0.2；First pitch and the LSPM layer
Ratio between the rubble is 3% to 3.5%.The thickness of the LSPM layer be 60mm extremely
100mm。
Further, in addition to water layer is sealed, is arranged at the basic unit and the LSPM layer
Between；And the sealing water layer is pressed into 1.3kg/m by 5mm to 10mm rubble2To 1.5kg/ m2The second pitch be made；It is described
Second pitch is No. 90 or No. 70 heated bitumens.
Further, the miberal powder is limestone ground blast furnace slag.
Further, the basic unit is old asphalt pavement, old cement concrete road or new pavement basic unit.
Further, in addition to damaged road surface backfill structure, damaged road surface backfill structure include cement concrete or
Dense-graded asphalt concrete.
Further, the voidage 13-18% of the LSPM layer.
Further, the curb of the LSPM layer both sides is permeable curb.
Beneficial effect：
LSPM pavement structure provided by the utility model is because with large grain diameter water permeability drip
The green grass or young crops mixing bed of material, and framework type asphalt mixture is used, there is certain voidage, moisture can freely be discharged pavement structure,
Voidage is generally 13-18%, there is good drain function, can double as road surface drainage layer.And larger plasticity can be resisted
And detrusion, the effect of Heavy Traffic is born, there is preferable rutting resistance, improves the high-temperature stable of bituminous paving
Property；Especially for low speed, loaded vehicle section, it is necessary to hold the lotus time it is longer when, design good large grain diameter water permeability asphalt and mix
Material pavement structure is closed compared with traditional bituminous concrete, shows fairly obvious permanent deformation resistance.
Further, due to larger particle diameter and larger space, reflection crack can be efficiently reduced.Big particle diameter
That gathers materials increases the reduction with miberal powder dosage, reduces specific surface area, reduces the total dosage of pitch, so as to reduce construction costs.
In overhaul reconstruction project, the close traffic time is substantially shorter, economic results in society are notable.
That is, LSPM pavement structure work excellent provided by the utility model, pole
The big phenomenon for reducing surface gathered water, improves the self-draining effect in road surface, effectively reduces crack on road and pitch is used
Amount, reduces cost, substantially reduces the time of close traffic, economic results in society are notable.
Brief description of the drawings
It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real
Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that
What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the structure according to the LSPM pavement structure of the utility model one embodiment
Figure.
Embodiment
According to the accompanying drawings will be more to the detailed description of the utility model specific embodiment, those skilled in the art
Add clear of the present utility model above-mentioned and other purposes, advantages and features.
Fig. 1 is the structure according to the LSPM pavement structure of the utility model one embodiment
Figure.As shown in figure 1, the utility model embodiment provides a kind of LSPM pavement structure.The big grain
The large grain diameter water permeability asphalt that footpath water permeability asphalt mixture pavement structure may include basic unit 20 and be arranged on the upside of basic unit 20 mixes
Close the bed of material 40.Basic unit 20 can be old asphalt pavement, old cement concrete road or new pavement basic unit 20.
LSPM layer 40 uses framework type asphalt mixture, including rubble, miberal powder, quick lime and
First pitch.First pitch is MAC-70# modified pitch.The rubble of LSPM layer 40 is including particle diameter
19mm to 31.5mm the first rubble, particle diameter is that 9.5mm to 19mm the second rubble, particle diameter are the 3rd of 4.75mm to 9.5mm the
Rubble, and the aggregate chips that particle diameter is 0mm to 2.36mm；And between first rubble, the second rubble, the 3rd rubble, aggregate chips and quick lime
Match ratio be 40 ± 3：33±2：15±1：11±0.6：1±0.2.First pitch and LSPM
Ratio between the rubble of layer 40 is 3% to 3.5%.Miberal powder is limestone ground blast furnace slag.
In some embodiments of the utility model, the voidage 13-18% of LSPM layer 40,
The thickness of LSPM layer 40 is 60mm to 100mm.Rubble should it is hard, clean, dry, without weathering, nothing
Impurity simultaneously has appropriate grading.For compound when using MAC-70# modified pitch, pitch uses heat-conducting oil heating, heating-up temperature control
System is in the range of 185~190 DEG C, and at 190~200 DEG C, blending station compound temperature control of dispatching from the factory exists for mineral heating up temperature control
Between 180~190 DEG C, transport to job site temperature and be not less than 175 DEG C.When asphalt dispatches from the factory temperature more than 195 DEG C, mix
Material is closed to be abolished.In some preferred embodiments of the present utility model, LSPM pavement structure
Also include sealing water layer 30, be arranged between basic unit 20 and LSPM layer 40；And sealing water layer is by 5mm
Rubble to 10mm is pressed into 1.3kg/m2To 1.5kg/m2The second pitch be made；Second pitch is No. 90 or No. 70 heated bitumens.Tool
Body way is using No. 90 or No. 70 heated bitumens of bi tumenf orr oad as binding material, is carried out using special heated bitumen distributor
Construction, asphalt content is 1.3-1.5kg/ m2, then dispense 5-10mm rubbles.Using rubber tire pressure road after aggregate chips spread is complete
Machine rolls, so that among aggregate chips insertion pitch.
In some embodiments of the utility model, basic unit 20 can be old asphalt pavement, old cement concrete road or new pavement
Basic unit 20；That is, LSPM pavement structure of the present utility model is applied to newly-built road, old drip
Blue or green road surface directly overlays, old asphalt pavement reprocesses improvement project construction.Further, when basic unit 20 is old asphalt pavement or old water
During road face, LSPM pavement structure also includes damaged road surface backfill structure, damaged road surface backfill knot
Structure includes cement concrete or dense-graded asphalt concrete.That is, the heavy damage that Old cement concrete occurs shows
As that must be handled accordingly, then it is backfilling and compacted using cement concrete or dense-graded asphalt concrete, for plate
Bottom is come to nothing, purt mud and depression part should use Dispose by grouting, i.e., former road surface disrepair phenomenon is repaired, and ensures road surface knot
The stability of structure, ensure the bearing capacity of pavement structure.
When basic unit 20 is new pavement basic unit 20, the curb of the both sides of LSPM layer 40 is preferably set
It is calculated as permeable curb.
So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model more
Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the spirit and scope of the utility model
The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new
The scope of type is understood that and regarded as to cover other all these variations or modifications.
Claims (6)
1. a kind of LSPM pavement structure, it is characterised in that including basic unit and be arranged at the basic unit
The LSPM layer of upside；The LSPM layer is mixed using framework type asphalt
Material, including rubble, miberal powder, quick lime and the first pitch；First pitch is MAC-70# modified pitch；The big particle diameter is saturating
The rubble of the soluble asphalt mixing bed of material includes that the first rubble, the particle diameter that particle diameter is 19mm to 31.5mm are 9.5mm to 19mm
Two rubbles, the 3rd rubble that particle diameter is 4.75mm to 9.5mm, and particle diameter is in below 2.36mm aggregate chips；The big particle diameter is saturating
The thickness of the soluble asphalt mixing bed of material is 60mm to 100mm.
2. LSPM pavement structure according to claim 1, it is characterised in that also include sealing
Water layer, it is arranged between the basic unit and the LSPM layer；And it is described sealing water layer by 5mm extremely
10mm rubble press-in 1.3kg/ ㎡ to 1.5kg/ ㎡ the second pitch is made；Second pitch is that No. 90 or No. 70 heat drip
It is blue or green.
3. LSPM pavement structure according to claim 1, it is characterised in that the basic unit is
Old asphalt pavement, old cement concrete road or new pavement basic unit.
4. LSPM pavement structure according to claim 3, it is characterised in that also include breakage
Road surface backfills structure, and the damaged road surface backfill structure includes cement concrete or dense-graded asphalt concrete.
5. LSPM pavement structure according to claim 1, it is characterised in that the big particle diameter
The voidage 13-18% of water permeability asphalt mixture layer.
6. LSPM pavement structure according to claim 1, it is characterised in that the big particle diameter
The curb of water permeability asphalt mixture layer both sides is permeable curb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675062.1U CN207091855U (en) | 2017-06-12 | 2017-06-12 | LSPM pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675062.1U CN207091855U (en) | 2017-06-12 | 2017-06-12 | LSPM pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207091855U true CN207091855U (en) | 2018-03-13 |
Family
ID=61552206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720675062.1U Active CN207091855U (en) | 2017-06-12 | 2017-06-12 | LSPM pavement structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004788A (en) * | 2019-03-28 | 2019-07-12 | 河海大学 | A kind of drainage asphalt paving structure slowing down pore plugging |
| CN113089442A (en) * | 2021-03-17 | 2021-07-09 | 宁波东兴沥青制品有限公司 | Repairing method for drainage asphalt pavement |
| CN113861702A (en) * | 2020-06-30 | 2021-12-31 | 中国石油化工股份有限公司 | High-solid-content road surface filling asphalt liquid and preparation method thereof |
-
2017
- 2017-06-12 CN CN201720675062.1U patent/CN207091855U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004788A (en) * | 2019-03-28 | 2019-07-12 | 河海大学 | A kind of drainage asphalt paving structure slowing down pore plugging |
| CN113861702A (en) * | 2020-06-30 | 2021-12-31 | 中国石油化工股份有限公司 | High-solid-content road surface filling asphalt liquid and preparation method thereof |
| CN113861702B (en) * | 2020-06-30 | 2023-04-07 | 中国石油化工股份有限公司 | High-solid-content road surface filling asphalt liquid and preparation method thereof |
| CN113089442A (en) * | 2021-03-17 | 2021-07-09 | 宁波东兴沥青制品有限公司 | Repairing method for drainage asphalt pavement |
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