CN205134128U - Half flexible bituminous pavement structure - Google Patents
Half flexible bituminous pavement structure Download PDFInfo
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- CN205134128U CN205134128U CN201520916739.7U CN201520916739U CN205134128U CN 205134128 U CN205134128 U CN 205134128U CN 201520916739 U CN201520916739 U CN 201520916739U CN 205134128 U CN205134128 U CN 205134128U
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- asphalt
- pavement structure
- half flexible
- surface course
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Abstract
The utility model discloses a half flexible bituminous pavement structure, including last surface course, lower surface course, go up the surface course and adopt the adhesion coating to connect down between the surface course, the surface course is the cold reclaimed asphalt mixture layer of cement - emulsified asphalt down. Adopt half flexible surface course down of the cold reclaimed asphalt mixture of the two cementing agents of cement and emulsified asphalt, improve bituminous paving water stability can and the high temperature stability ability in, effectively delay the semi -rigid bituminous paving reflective cracking's of basic unit appearance, have better use value.
Description
Technical field
The utility model relates to a kind of half flexible asphalt pavement structure.
Background technology
Along with the formation of high-grade highway road network, traffic volume rapid growth, the axle of loaded vehicle load is heavy sharply to be increased, overload of vehicle phenomenon is very general, traditional road structure schematic diagram as shown in Figure 1, be laid on semi-rigid type base, be followed successively by from top to bottom, upper layer 01, modified emulsifying asphalt adhesion coating 03, nominal maximum particle diameter are hot-mix asphalt mixture cutting optimal 05 and the modified emulsifying asphalt sealing 04 of 19.0mm, wherein semi-rigid sub-base material easily produces shrinkage crack, or it is loose that frost boiling occurs after rainwater infiltration, causes asphalt surface course to damage after reflexing to asphalt surface course.In addition, because the high-temperature stability of bituminous mixtures for pavement surface is not enough, flexible pavement unstability can produce and push rut.
In view of the defect that above-mentioned existing road structure exists, the present inventor is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of half novel flexible asphalt pavement structure, it is made to have more practicality.
Utility model content
The utility model road structure, for the maintenance works of old asphalt pavement, be layed on sub-surface, use cement and the two cementitious matter reclaimed asphalt mixture of mulseal as semiflexible cutting optimal, while improve flexible pavement water stabilizing and high-temperature stability, inhibit the diseases such as Semi-rigid Base Reflective Crevice.
The flexible asphalt pavement structure of one half that the utility model provides, comprises upper layer, cutting optimal, adopts adhesion coating to connect between upper layer and cutting optimal;
Cutting optimal is Cement-Emulsified Asphalt cold recycled asphalt mixture layer.
Further, the thickness of cutting optimal is 6 ~ 10cm.
Further, adhesion coating is modified emulsifying asphalt layer.
Further, upper layer is hot-mix asphalt mixture layer, and wherein the nominal maximum particle diameter of compound is not more than 16.0mm.
Further, the thickness of upper layer is 4 ~ 5cm.
Further, upper layer is SMA-13, Sup-13 or AC-13 mixing bed of material.
After have employed technique scheme, the utility model has following beneficial effect:
1, cutting optimal adopts two cementitious matters of the extraordinary mulseal of high-performance microdilatancy and hydraulicity cementitious matter composition, achieve the novel road surface structure that basic unit-cutting optimal-upper layer is semi-rigid-half flexibility-flexible transition formula, pass through prestressing effect, suppress Semi-rigid Base Reflective Crevice, solve the diseases such as asphalt pavement rut, this technology has taken into account the feature of " high-performance, low energy consumption, low emission " simultaneously.
2, cold recycling technology is adopted; compared with traditional asphalt pavement conserving maintenance mode, can save material, improve old road grade; reduction of erection time; little to traffic impact, save maintenance fund, recycle waste material simultaneously; protection of the environment; that thoroughly can eliminate former surface layer gathers around bag, rut, crack and the disease such as loose.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of conventional pav;
Fig. 2 is the utility model road structure schematic diagram;
Implication is marked: 01 upper layer, 03 adhesion coating, 04 modified emulsifying asphalt sealing, 05 cutting optimal, 1 upper layer, 2 cutting optimal, 3 adhesion coatings, 4 modified emulsifying asphalt sealings in accompanying drawing.
Detailed description of the invention
Conveniently those skilled in the art person understands the technical scheme in the utility model better, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
The utility model embodiment adopts the mode of going forward one by one to write.
As shown in Figure 2, the present embodiment provides a kind of half flexible asphalt pavement structure, for the maintenance works of old asphalt pavement, being layed on sub-surface, is hot-mix asphalt mixture upper layer 1, modified emulsifying asphalt adhesion coating 3,6 ~ 10cm Cement-Emulsified Asphalt cold recycled asphalt mixture cutting optimal 2 that 4 ~ 5cm nominal maximum particle diameter is not more than 16.0mm from top to bottom respectively; Wherein, upper layer 1 is the compound of SMA-13, Sup-13 or AC-13; Cement-Emulsified Asphalt cold recycled asphalt mixture adopts two cementitious matter to realize, and wherein, two cementitious matter is microdilatancy special-purpose emulsifying pitch and cement; Adopt cold recycling technology; compared with traditional asphalt pavement conserving maintenance mode, can save material, improve old road grade; reduction of erection time; little to traffic impact, save maintenance fund, recycle waste material simultaneously; protection of the environment; that thoroughly can eliminate former surface layer gathers around bag, rut, crack and the disease such as loose.
In pavement maintenance treatment procedure by former road-surface milling to basic unit, former cutting optimal 05 milling material is being carried out Cement-Emulsified Asphalt cold renewal, regeneration compound as new cutting optimal 2.Cold recycling technology can adopt cold in-plant recycling or on-the-spot cold regeneration, when adopting cold in-plant recycling technique to keep in repair, after treating that basic unit's cleaning is disposed, spreading modified emulsifying asphalt sealing 4 in basic unit, then at making Cement-Emulsified Asphalt cold recycled asphalt mixture cutting optimal 2, layer 2 top spreading modified emulsifying asphalt adhesion coating 3 below, modified emulsifying asphalt adhesion coating 3 overlays bituminous mixture SMA-13 upper layer 1, when adopting on-the-spot cold regeneration technique to keep in repair, owing to adopting the technique of side milling plane limit regeneration, without the need to spreading modified emulsifying asphalt sealing 4.
Adopt the technical scheme in the utility model, cutting optimal 2 adopts two cementitious matter reclaimed asphalt mixtures of the extraordinary mulseal of high-performance microdilatancy and hydraulicity cementitious matter composition, achieve the novel road surface structure that basic unit-cutting optimal-upper layer is semi-rigid-half flexibility-flexible transition formula, pass through prestressing effect, suppress semi-rigid crushed rock base course reflection crack, solve the diseases such as asphalt pavement rut, this technology has taken into account the feature of " high-performance, low energy consumption, low emission " simultaneously.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a half flexible asphalt pavement structure, comprises upper layer (1), cutting optimal (2), adopts adhesion coating (3) to connect between described upper layer (1) and cutting optimal (2);
It is characterized in that, described cutting optimal (2) is Cement-Emulsified Asphalt cold recycled asphalt mixture layer.
2. half flexible asphalt pavement structure according to claim 1, is characterized in that, the thickness of described cutting optimal (2) is 6 ~ 10cm.
3. half flexible asphalt pavement structure according to claim 1, is characterized in that, described adhesion coating (3) is modified emulsifying asphalt layer.
4. according to any one of claims 1 to 3 half flexible asphalt pavement structure, is characterized in that, described upper layer (1) is hot-mix asphalt mixture layer, and wherein the nominal maximum particle diameter of compound is not more than 16.0mm.
5. half flexible asphalt pavement structure according to claim 1, is characterized in that, the thickness of described upper layer (1) is 4 ~ 5cm.
6. half flexible asphalt pavement structure according to claim 1, is characterized in that, described upper layer (1) is SMA-13, Sup-13 or AC-13 mixing bed of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916739.7U CN205134128U (en) | 2015-11-17 | 2015-11-17 | Half flexible bituminous pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916739.7U CN205134128U (en) | 2015-11-17 | 2015-11-17 | Half flexible bituminous pavement structure |
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| Publication Number | Publication Date |
|---|---|
| CN205134128U true CN205134128U (en) | 2016-04-06 |
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| CN201520916739.7U Active CN205134128U (en) | 2015-11-17 | 2015-11-17 | Half flexible bituminous pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109956707A (en) * | 2019-04-23 | 2019-07-02 | 浙江巍华新型建材有限公司 | A kind of very-high performance half-flexible pavement and its construction method |
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2015
- 2015-11-17 CN CN201520916739.7U patent/CN205134128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109956707A (en) * | 2019-04-23 | 2019-07-02 | 浙江巍华新型建材有限公司 | A kind of very-high performance half-flexible pavement and its construction method |
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