CN205171301U - Bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture - Google Patents
Bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture Download PDFInfo
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- CN205171301U CN205171301U CN201520886687.3U CN201520886687U CN205171301U CN 205171301 U CN205171301 U CN 205171301U CN 201520886687 U CN201520886687 U CN 201520886687U CN 205171301 U CN205171301 U CN 205171301U
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Abstract
The utility model discloses a bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture, bituminous pavement structure top -down be interrupted the type level of confidentiality by 4cm's SMA -13 and join in marriage surface course on the pitch, 0.02cm~0.05cm's modified emulsified asphalt adhesion coating, surface course in the pitch is joined in marriage to 4cm's the continuous type level of confidentiality of AC -13, 0.02cm~0.05cm's modified emulsified asphalt adhesion coating, surface course under the pitch is joined in marriage to 8cm's the continuous type level of confidentiality of AC -20, 0.05cm~0.1cm's emulsified asphalt is the layer thoroughly, 12cm's the flexible basic unit of the big particle diameter water permeability bituminous mixture of LSPM, seal under 1cm~2cm, 0.05cm~0.1cm's emulsified asphalt is the layer thoroughly, 18cm's cement is stabilized the rubble underlayment and is constituteed. The utility model has the advantages that emergence that anti rut can the reinforce, water stability is good, prevented reflective cracking, improve construction speed, reduce construction cost etc.
Description
Technical field
The utility model relates to a kind of asphalt pavement structure of LSPM flexbile base.
Background technology
In China, asphalt pavement structure has become the very general road structure form of one, but the existence of the diseases such as rut, hole groove, water destruct, reflection crack, creates serious impact, too increase the maintenance expense of road structure the application life of road pavement structure simultaneously.Usually be all the intensity according to raising sub-surface, surface layer and degree of compaction when processing these diseases, the angle of increase basic unit, surface thickness is set out, do not recognize the importance of road structure form, the effect solving these diseases is undesirable, therefore probes into that a kind ofly to improve road structure application life, reduce the road structure form that disease occurs be significantly.
Summary of the invention
The purpose of this utility model is to provide a kind of asphalt pavement structure of LSPM flexbile base, reduces the diseases such as rut, water destruct, reflection crack and occurs, improve the application life of road structure.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of asphalt pavement structure of LSPM flexbile base, it is characterized in that, the flexible pavement of LSPM flexbile base lays SMA-13 discontinuous form dense bitumen upper layer from top to bottom successively, modified emulsifying asphalt adhesion coating, surface layer in AC-13 continuous type dense bitumen, modified emulsifying asphalt adhesion coating, AC-20 continuous type dense bitumen cutting optimal, emulsification pitch penetration, LSPM LSPM flexbile base, Sub-sealing Course, emulsification pitch penetration, cement stabilized macadam subbase.
By such scheme, in described SMA-13 discontinuous form close-graded upper layer and AC-13 continuous type close-graded, surface thickness is 4cm, described AC-20 continuous type dense bitumen cutting optimal thickness is 8cm, described modified emulsifying asphalt adhesion coating thickness is 0.02cm ~ 0.05cm, described emulsification pitch penetration thickness is 0.05cm ~ 0.1cm, described LSPM LSPM flexbile base thickness is 12cm, described Sub-sealing Course thickness is 1cm ~ 2cm, and flexbile base thickness at the bottom of described cement stabilized macadam is 18cm.
This uses novel advantage to be:
(1) the LSPM flexbile base that grating is good can resist larger plastic strain and shear strain, bear the effect of Heavy Traffic, there is good rutting resistance, improve the high-temperature stability of flexible pavement, particularly for low speed, loaded vehicle section, the lotus time of holding needed, time longer, designed good LSPM LSPM compared with traditional bituminous concrete, demonstrates fairly obvious permanent deformation resistance.
(2) LSPM LSPM flexbile base has good drain function, can have the function of surface drainage layer concurrently.
(3) due to gather materials larger particle diameter and the larger space in LSPM LSPM flexbile base, it can reduce reflection crack effectively.
(4) in LSPM LSPM flexbile base Large stone gather materials increase the minimizing with breeze consumption, can specific area be reduced, decrease the total consumption of pitch, thus reduce construction costs.
(5) compared with common semi-rigid type base, improve engineering construction speed, decrease equipment investment.
Accompanying drawing explanation
The asphalt pavement structure schematic cross-sectional view of a kind of large grain diameter water permeability flexbile base that Fig. 1 provides for the utility model.Wherein 1 is SMA-13 discontinuous form dense bitumen upper layer, 2 is modified emulsifying asphalt adhesion coating, 3 is surface layer in AC-13 continuous type dense bitumen, 4 is modified emulsifying asphalt adhesion coating, and 5 is AC-20 continuous type dense bitumen cutting optimal, and 6 is emulsification pitch penetration, 7 is LSPM LSPM flexbile base, 8 is Sub-sealing Course, and 9 is emulsification pitch penetration, and 10 is cement stabilized macadam subbase.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.But the utility model is not limited to following examples.
As shown in the figure, the asphalt pavement structure of a kind of LSPM flexbile base that the utility model provides comprises surface layer and basic unit, surface layer is from top to down by SMA-13 discontinuous form dense bitumen upper layer 1, surface layer 3 in AC-13 continuous type dense bitumen, AC-20 continuous type dense bitumen cutting optimal composition 5, basic unit is made up of LSPM LSPM flexbile base 7 and cement stabilized macadam subbase 10 from top to down, modified emulsifying asphalt adhesion coating 2 is had between surface layer 3 in SMA-13 discontinuous form dense bitumen upper layer 1 and AC-13 continuous type dense bitumen, modified emulsifying asphalt adhesion coating 4 is had between surface layer 3 and AC-20 continuous type dense bitumen cutting optimal 5 in AC-13 continuous type dense bitumen, emulsification pitch penetration 6 is had between AC-20 continuous type dense bitumen cutting optimal 5 and LSPM LSPM flexbile base 7, Sub-sealing Course 8 and emulsification pitch penetration 9 is had from top to bottom between LSPM large grain diameter water permeability flexbile base 7 and cement stabilized macadam subbase 10, in SMA-13 discontinuous form dense bitumen upper layer, AC-13 continuous type dense bitumen, surface thickness is 4cm, AC-20 continuous type dense bitumen cutting optimal thickness is 8cm, LSPM LSPM flexbile base thickness is 12cm, cement stabilized macadam subbase thickness is 18cm, modified emulsifying asphalt adhesion coating thickness is 0.02cm ~ 0.05cm, emulsification pitch penetration thickness is 0.05cm ~ 0.1cm, and Sub-sealing Course thickness is 1cm ~ 2cm.
In the utility model, the maximum particle diameter of SMA-13 discontinuous form dense bitumen Field test is 13.2mm, the maximum particle diameter that in AC-13 continuous type dense bitumen, surface layer gathers materials is the maximum particle diameter that 13.2mm, AC-20 continuous type dense bitumen cutting optimal gathers materials is 19mm; The maximum particle diameter of LSPM bituminous mixture aggregate is 26.5mm.
The grading limit of gathering materials in LSPM bituminous mixture is: be 100% by the quality percentage of 31.5mm sieve aperture, be 70% ~ 98% by the quality percentage of 26.5mm sieve aperture, be 50% ~ 85% by the quality percentage of 19mm sieve aperture, be 32% ~ 62% by the quality percentage of 13.2mm sieve aperture, be 20% ~ 45% by the quality percentage of 9.5mm sieve aperture, be 6% ~ 29% by the quality percentage of 4.75mm sieve aperture, be 6% ~ 18% by the quality percentage of 2.36mm sieve aperture, be 3% ~ 15% by the quality percentage of 1.18mm sieve aperture, be 2% ~ 10% by the quality percentage of 0.6mm sieve aperture, be 1% ~ 7% by the quality percentage of 0.3mm sieve aperture, be 1% ~ 6% by the quality percentage of 0.15mm sieve aperture, be 1% ~ 4% by the quality percentage of 0.075mm sieve aperture.LSPM Air Voids of Asphalt Mixtures remains on 13% ~ 18%, and dry slaked lime powder selected by inserts, and degree of compaction should not be less than 98%, and coefficient of loose laying is between 1.18 ~ 1.20.
The road structure of a kind of LSPM flexbile base of the utility model is compared with the road structure of semi-rigid type base, its basic unit of the road structure of LSPM flexbile base adopts LSPM bituminous mixture, LSPM bituminous mixture grain diameter and void content larger, contribute to the generation reducing reflection crack, the water entering road structure can be discharged simultaneously, decrease because the water destruct that water enters road structure generation is shown on road, extend the application life of road structure.
Claims (2)
1. the asphalt pavement structure of a LSPM flexbile base, it is characterized in that road structure from top to bottom by SMA-13 discontinuous form dense bitumen upper layer (1), modified emulsifying asphalt adhesion coating (2), surface layer (3) in AC-13 continuous type dense bitumen, modified emulsifying asphalt adhesion coating (4), AC-20 continuous type dense bitumen cutting optimal (5), emulsification pitch penetration (6), LSPM LSPM flexbile base (7), Sub-sealing Course (8), emulsification pitch penetration (9), cement stabilized macadam subbase (10) forms.
2. the asphalt pavement structure of LSPM flexbile base as claimed in claim 1, it is characterized in that, described SMA-13 discontinuous form dense bitumen upper layer thickness is 4cm, in described AC-13 continuous type dense bitumen, surface thickness is 4cm, described AC-20 continuous type dense bitumen cutting optimal thickness is 8cm, described modified emulsifying asphalt adhesion coating thickness is 0.02cm ~ 0.05cm, described emulsification pitch penetration thickness is 0.05cm ~ 0.1cm, described LSPM LSPM flexbile base thickness is 12cm, described Sub-sealing Course thickness is 1cm ~ 2cm, described cement stabilized macadam subbase thickness is 18cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886687.3U CN205171301U (en) | 2015-11-10 | 2015-11-10 | Bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520886687.3U CN205171301U (en) | 2015-11-10 | 2015-11-10 | Bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture |
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| CN205171301U true CN205171301U (en) | 2016-04-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192651A (en) * | 2016-07-27 | 2016-12-07 | 济南黄河路桥建设集团有限公司 | A kind of dankness type macropores cement-stabilized crushed stone road surface base layer material and preparation method thereof |
| CN106400642A (en) * | 2016-11-08 | 2017-02-15 | 泰州职业技术学院 | Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle |
| CN106758651A (en) * | 2016-11-14 | 2017-05-31 | 江苏中路工程技术研究院有限公司 | A kind of saturating drainage pavement structure of rigid-flexible composite |
| CN107245921A (en) * | 2017-06-20 | 2017-10-13 | 河南城建学院 | A kind of large grain size asphalt gravel road surface flexbile base material |
| CN113279302A (en) * | 2021-04-29 | 2021-08-20 | 山东省交通科学研究院 | High-temperature-resistant track flexible base asphalt pavement structure suitable for low-traffic-volume road |
-
2015
- 2015-11-10 CN CN201520886687.3U patent/CN205171301U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192651A (en) * | 2016-07-27 | 2016-12-07 | 济南黄河路桥建设集团有限公司 | A kind of dankness type macropores cement-stabilized crushed stone road surface base layer material and preparation method thereof |
| CN106400642A (en) * | 2016-11-08 | 2017-02-15 | 泰州职业技术学院 | Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle |
| CN106758651A (en) * | 2016-11-14 | 2017-05-31 | 江苏中路工程技术研究院有限公司 | A kind of saturating drainage pavement structure of rigid-flexible composite |
| CN106758651B (en) * | 2016-11-14 | 2019-01-15 | 江苏中路工程技术研究院有限公司 | A kind of saturating drainage pavement structure of rigid-flexible composite |
| CN107245921A (en) * | 2017-06-20 | 2017-10-13 | 河南城建学院 | A kind of large grain size asphalt gravel road surface flexbile base material |
| CN113279302A (en) * | 2021-04-29 | 2021-08-20 | 山东省交通科学研究院 | High-temperature-resistant track flexible base asphalt pavement structure suitable for low-traffic-volume road |
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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 |
Granted publication date: 20160420 Termination date: 20161110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |