CN211689721U - High-skid-resistant drainage asphalt surface layer pavement structure for highlands and canyons - Google Patents

High-skid-resistant drainage asphalt surface layer pavement structure for highlands and canyons Download PDF

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Publication number
CN211689721U
CN211689721U CN201922320793.6U CN201922320793U CN211689721U CN 211689721 U CN211689721 U CN 211689721U CN 201922320793 U CN201922320793 U CN 201922320793U CN 211689721 U CN211689721 U CN 211689721U
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China
Prior art keywords
layer
asphalt
pavement
highway
surface course
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Expired - Fee Related
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CN201922320793.6U
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Chinese (zh)
Inventor
杨发
沈冰
瞿春璞
杨榆峰
陈武
杨思军
金政
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Nujiang Meili Road Co Ltd
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Nujiang Meili Road Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

The utility model discloses a be used for high anti-skidding drainage asphalt surface course of highway of mountain canyon area structure of mating formation, including outer inoxidizing coating, well surface course, subbase, longitudinal slope, ultra-thin wearing layer, SBS modified emulsified asphalt adhesive layer, bituminous paving upper surface course, non-woven fabrics layer and tie coat. The ultra-thin wearing layer of the utility model adopts the mixture of the mastic asphalt and crushed stone, which selects the bauxite with high anti-skid aggregate and the common aggregate limestone, and the differential polishing among the aggregates is gradually formed in the wearing process of the traffic load of the road surface in the future, thus improving the anti-skid property and the durability of the road surface; the utility model discloses be equipped with the non-woven fabrics layer between bituminous paving upper strata layer and well surface course, the application on non-woven fabrics layer can play waterproof function to its bottom structure, and the ultra-thin wearing layer is closely knit skeleton texture simultaneously, can effectually prevent that the surface from oozing under the water, prolongs the holistic life in road surface.

Description

High-skid-resistant drainage asphalt surface layer pavement structure for highlands and canyons
Technical Field
The utility model relates to a bituminous paving layer structure of mating formation specifically is a bituminous paving layer structure of mating formation of high anti-skidding drainage of highway in mountain canyon area belongs to bituminous paving application technical field.
Background
Along with the rapid development of highway construction in China, the gravity center of road construction gradually increases from plain areas to mountain canyons and hilly areas, meanwhile, diseases of different types and degrees gradually appear on many roads in the plain areas along with the increase of service life, and people pay more attention to the surface use function of the road surface; the asphalt pavement is characterized in that mineral materials are mixed with various types of pavements paved with asphalt materials, and the asphalt binder improves the ability of paving granules to resist damage of driving and natural factors to the pavements, so that the pavements are smooth, less in dust, waterproof and durable.
The ultrathin asphalt wearing layer is mainly used for recovering the anti-sliding performance of old pavements or building new roads, along with the increase of the service life of the roads, the wear resistance and the durability of a plurality of pavement surface layers can not meet the expected time limit requirements, and the existing asphalt pavements have common waterproofness and can reduce the service life of the whole pavement. Therefore, the pavement structure for the high-skid-resistant drainage asphalt surface layer of the highway in the high mountain and canyon region is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high antiskid drainage pitch surface course structure of mating formation for high mountain canyon region highway in order to solve above-mentioned problem.
The utility model realizes the purpose through the following technical proposal, is used for a pavement structure of a high anti-skid drainage asphalt surface layer of a highway in a high mountain and canyon area, and comprises an outer protective layer, a middle surface layer, a subbase layer and a longitudinal slope which are sequentially arranged from top to bottom;
the outer protective layer consists of an ultrathin wearing layer, an SBS modified emulsified asphalt adhesive layer, an asphalt pavement upper surface layer, a non-woven fabric layer and an adhesive layer, wherein the SBS modified emulsified asphalt adhesive layer is arranged on the upper surface of the asphalt pavement upper surface layer, and the ultrathin wearing layer is arranged on the upper surface of the SBS modified emulsified asphalt adhesive layer; the lower surface of the upper surface layer of the asphalt pavement is provided with the non-woven fabric layer, and the lower surface of the non-woven fabric layer is provided with the bonding layer;
the upper surface of longitudinal slope is equipped with the subbase, the upper surface of subbase is equipped with well surface course, just well surface course with outer inoxidizing coating bonding.
Preferably, the ultrathin wearing layer is made of an asphalt mastic macadam mixture, and the nominal maximum particle size of the asphalt mastic macadam mixture is 4.75 mm.
Preferably, the SBS modified emulsified asphalt adhesive layer is sprayed on the surface of the upper surface of the asphalt pavement, and the spraying amount of the SBS modified emulsified asphalt adhesive layer is about 0.6-0.8 kg per square meter.
Preferably, the ultra-thin wearing layer is of a compact skeleton structure, and the thickness of the ultra-thin wearing layer is 20 mm.
Preferably, the longitudinal slope is of an inclined structure and is fixedly connected with the underlayer.
Preferably, the adhesive layer is an epoxy resin adhesive, and the adhesive layer is adhered to the surface of the middle surface.
The utility model has the advantages that:
1. the ultra-thin wearing layer of the utility model adopts the mixture of the mastic asphalt and crushed stone, which selects the bauxite with high anti-skid aggregate and the common aggregate limestone, and the differential polishing among the aggregates is gradually formed in the wearing process of the traffic load of the road surface in the future, thus improving the anti-skid property and the durability of the road surface;
2. the utility model discloses be equipped with the non-woven fabrics layer between bituminous paving upper strata layer and well surface course, the application on non-woven fabrics layer can play waterproof function to its bottom structure, and the ultra-thin wearing layer is closely knit skeleton texture simultaneously, can effectually prevent that the surface from oozing under the water, prolongs the holistic life in road surface.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the structure of the outer protective layer of the present invention.
In the figure: 1. the outer protective layer, 2, the middle surface layer, 3, the bottom base layer, 4, the longitudinal slope, 5, the ultra-thin wearing layer, 6, the SBS modified emulsified asphalt adhesive layer, 7, the upper surface layer of the asphalt pavement, 8, the non-woven fabric layer, 9 and the adhesive layer.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-2, the high anti-skid drainage asphalt surface course pavement structure for highways in high mountains and canyons comprises an outer protective layer 1, a middle surface course 2, a sub-base 3 and a longitudinal slope 4 which are sequentially arranged from top to bottom;
the outer protective layer 1 consists of an ultrathin wearing layer 5, an SBS modified emulsified asphalt adhesive layer 6, an asphalt pavement upper surface layer 7, a non-woven fabric layer 8 and a bonding layer 9, the SBS modified emulsified asphalt adhesive layer 6 is arranged on the upper surface of the asphalt pavement upper surface layer 7, and the ultrathin wearing layer 5 is arranged on the upper surface of the SBS modified emulsified asphalt adhesive layer 6; the lower surface of the upper surface layer 7 of the asphalt pavement is provided with the non-woven fabric layer 8, and the lower surface of the non-woven fabric layer 8 is provided with the bonding layer 9;
the upper surface of longitudinal slope 4 is equipped with subbase 3, the upper surface of subbase 3 is equipped with well surface course 2, just well surface course 2 with outer inoxidizing coating 1 bonding.
The ultrathin wearing layer 5 adopts a mixture of asphalt mastic and crushed stone, and the nominal maximum grain diameter of the mixture of asphalt mastic and crushed stone is 4.75mm, so that the road surface can gradually form differential polishing among aggregates in the wearing process of the driving load, and the skid resistance and the durability of the road surface are improved; the SBS modified emulsified asphalt adhesive layer 6 is sprayed on the surface of the upper layer 7 of the asphalt pavement, and the spraying amount of the SBS modified emulsified asphalt adhesive layer 6 is about 0.6-0.8 kg per square meter, so that the cohesiveness and the integrity between pavements are improved; the ultrathin wearing layer 5 is of a compact skeleton structure, and the thickness of the ultrathin wearing layer 5 is 20mm, so that the underground infiltration of surface water can be effectively prevented, and the service life of a pavement is prolonged; the longitudinal slope 4 is of an inclined structure and is fixedly connected with the subbase layer 3, and a wedge-shaped slope structure with a certain angle is formed at the end of the road surface in the road maintenance engineering; the bonding layer 9 is made of epoxy resin adhesive, and the bonding layer 9 is bonded on the surface of the middle layer 2, so that the bonding degree of two adjacent layers is enhanced.
When the utility model is used, firstly, the ultra-thin wearing layer 5 adopts the mixture of the mastic asphalt and the crushed stone, the bauxite with high anti-sliding property and the common aggregate limestone are selected, and the difference between aggregates is gradually formed in the wearing process of the road driving load in the future, so that the anti-sliding property and the durability of the road surface can be improved; the SBS modified emulsified asphalt adhesive layer 6 is sprayed on the surface of the upper surface layer 7 of the asphalt pavement, so that the adhesion and integrity between the pavements are improved;
then be equipped with non-woven fabrics layer 8 between bituminous paving upper surface layer 7 and well surface course 2, non-woven fabrics layer 8's application can play waterproof function to its bottom structure, and ultra-thin wearing layer 5 is closely knit skeleton texture simultaneously, can effectually prevent that the surface from infiltrating under the water, the holistic life in extension road surface.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (6)

1. A structure of mating formation for high anti-skidding drainage pitch surface course of mountain canyon region highway, its characterized in that: comprises an outer protective layer (1), a middle surface layer (2), a bottom base layer (3) and a longitudinal slope (4) which are sequentially arranged from top to bottom;
the outer protective layer (1) comprises an ultrathin wearing layer (5), an SBS modified emulsified asphalt adhesive layer (6), an asphalt pavement upper surface layer (7), a non-woven fabric layer (8) and a bonding layer (9), wherein the SBS modified emulsified asphalt adhesive layer (6) is arranged on the upper surface of the asphalt pavement upper surface layer (7), and the ultrathin wearing layer (5) is arranged on the upper surface of the SBS modified emulsified asphalt adhesive layer (6); the lower surface of the upper surface layer (7) of the asphalt pavement is provided with the non-woven fabric layer (8), and the lower surface of the non-woven fabric layer (8) is provided with the bonding layer (9);
the upper surface of longitudinal slope (4) is equipped with subbase (3), the upper surface of subbase (3) is equipped with well surface course (2), just well surface course (2) with outer inoxidizing coating (1) bonding.
2. The pavement structure of the high anti-skid drainage asphalt surface course for the highway in the high mountain and canyon region according to claim 1, wherein: the ultrathin wearing layer (5) is made of a mixture of asphalt mastic and crushed stone, and the nominal maximum particle size of the mixture of asphalt mastic and crushed stone is 4.75 mm.
3. The pavement structure of the high anti-skid drainage asphalt surface course for the highway in the high mountain and canyon region according to claim 1, wherein: the SBS modified emulsified asphalt adhesive layer (6) is sprayed on the surface of the upper layer (7) of the asphalt pavement, and the spraying amount of the SBS modified emulsified asphalt adhesive layer (6) is about 0.6-0.8 kg per square meter.
4. The pavement structure of the high anti-skid drainage asphalt surface course for the highway in the high mountain and canyon region according to claim 1, wherein: the ultrathin wearing layer (5) is of a compact skeleton structure, and the thickness of the ultrathin wearing layer (5) is 20 mm.
5. The pavement structure of the high anti-skid drainage asphalt surface course for the highway in the high mountain and canyon region according to claim 1, wherein: the longitudinal slope (4) is of an inclined structure and is fixedly connected with the bottom base layer (3).
6. The pavement structure of the high anti-skid drainage asphalt surface course for the highway in the high mountain and canyon region according to claim 1, wherein: the bonding layer (9) adopts an epoxy resin adhesive, and the bonding layer (9) is bonded on the surface of the middle surface layer (2).
CN201922320793.6U 2019-12-20 2019-12-20 High-skid-resistant drainage asphalt surface layer pavement structure for highlands and canyons Expired - Fee Related CN211689721U (en)

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CN201922320793.6U CN211689721U (en) 2019-12-20 2019-12-20 High-skid-resistant drainage asphalt surface layer pavement structure for highlands and canyons

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113403144A (en) * 2021-06-22 2021-09-17 杨思军 Plant juice extraction device
CN113831060A (en) * 2021-10-29 2021-12-24 长安大学 Assembled cement pavement high-skid-resistance durable wear layer material and using method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113403144A (en) * 2021-06-22 2021-09-17 杨思军 Plant juice extraction device
CN113403144B (en) * 2021-06-22 2022-11-18 浙江顶亨生物科技有限公司 Plant juice extraction device
CN113831060A (en) * 2021-10-29 2021-12-24 长安大学 Assembled cement pavement high-skid-resistance durable wear layer material and using method thereof

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