CN204224947U - A kind of compound cold mixing cold-application ultrathin overlay paving structure - Google Patents

A kind of compound cold mixing cold-application ultrathin overlay paving structure Download PDF

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Publication number
CN204224947U
CN204224947U CN201420623385.2U CN201420623385U CN204224947U CN 204224947 U CN204224947 U CN 204224947U CN 201420623385 U CN201420623385 U CN 201420623385U CN 204224947 U CN204224947 U CN 204224947U
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cold
application
compound
paving structure
crushed stone
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王显华
胡学斌
廖乃凤
黄炳轮
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GUANGDONG YUEYUN JIAFU INDUSTRIAL Co Ltd
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GUANGDONG YUEYUN JIAFU INDUSTRIAL Co Ltd
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Abstract

The utility model belongs to highway maintenance field, be specifically related to a kind of compound cold mixing cold-application ultrathin overlay paving structure, crushed stone sealing and super sticky wearing layer is comprised from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described super sticky wearing layer comprises the super sticky Cold-mix layer that one deck is mixed into fiber.The utility model combines the advantage of crushed stone sealing and super sticky wearing layer, has the ability of excellent driving comfort, water proofing property, durability and prevention reflection crack.Construction technology is simple, uses paver vehicle cold mixing at the scene, mixing building heat need not mix, low-carbon energy-saving, greatly can reduce cost, be conducive to the spread of this maintenance technology.

Description

A kind of compound cold mixing cold-application ultrathin overlay paving structure
Technical field
The utility model belongs to highway maintenance field, is specifically related to a kind of compound cold mixing cold-application ultrathin overlay paving structure, is mainly applicable to the maintenance overlay of each grade pavement of road such as speedway, Class I highway, major urban arterial highway road and free way.
Background technology
Super sticky wearing layer is a kind of new road maintenance technology developed on micro zooming basis, this technology has used for reference the feature of ultra-thin wearing layer technology simultaneously, adopt super sticky wearing layer nucleus equipment simultaneously spraying modified mulseal binding material, paving is mixed into the super sticky cold-mix asphalt compound of glass fiber, forms new wearing layer after rolling.But the place of super sticky wearing layer also Shortcomings, the adhesion stress of itself and old pavement is mainly from the modified emulsifying asphalt binding material sprayed, and adhesion stress is less comparatively speaking, and particularly when Old cement concrete carries out maintenance, adhesion stress is more inadequate.Meanwhile, because super sticky wearing layer is the shaping bituminous mixture of cold mixing, be mixed with the inorganic hydraulic such as cement or lime material, integral thickness is thinner, the ability of Reflection Cracking.
Opening general sealing is on crushed stone sealing basis, carry out micro-surface area or slurry seal cover and the surface abrasion layer formed.Open general sealing and can provide a close real surface, can prevent building stones early fallout by firm building stones preferably, play the effect of waterproof and antiskid, energy available protecting road surface, delays the appearance of disease, extends Road Service Life simultaneously.But open the place that general sealing also has its deficiency, because it uses micro-surface area as surface layer, micro-surface area compares super sticky wearing layer poor durability, and noise is large, limits its further developing in advanced road.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of bonding with former road surface of can strengthening, and can also play the compound cold mixing cold-application ultrathin overlay paving structure of stress absorption effect simultaneously.
For achieving the above object, the utility model can be achieved by the following technical programs:
A kind of compound cold mixing cold-application ultrathin overlay paving structure, crushed stone sealing and super sticky wearing layer is comprised from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described super sticky wearing layer comprises the super sticky cold-mix asphalt compound thin layer that one deck is mixed into fiber.
Further, described crushed stone sealing is one or more layers, when old pavement has serious rut, need not carry out the reparation of rut in advance, by multilayer making crushed stone sealing for repairing rut.。
Further, the coverage scale of described crushed stone sealing is 60 ~ 80%.
Further, described modified asphalt layer is high-viscosity high-elasticity modified bitumen or rubber asphalt, has stronger adhesion stress.
Further, the thickness of described super sticky wearing layer is 0.8 ~ 1.0cm.
Further, the particle diameter of described macadam medium stone is 2 ~ 4mm.
Further, the particle diameter of described macadam medium stone is 4 ~ 6mm.
Further, the particle diameter of described macadam medium stone is 6 ~ 10mm.
Compared with prior art, the utility model has following beneficial effect:
1, have employed the high-viscosity high-elasticity modified bitumen with stronger adhesion stress or rubber asphalt at old pavement making synchronous surface dressing, compare directly pave super sticky wearing layer or micro-surface area, ensure that there is stronger adhesion stress, thus extend the durability of cover.
2, crushed stone sealing have employed the high-viscosity high-elasticity modified bitumen with ultra-strong elasticity or rubber asphalt can be used as stress absorbing layer, prevents the generation of reflection cracking in a pavement.
3, when old pavement has serious rut, the reparation of rut need not be carried out in advance, by multilayer making synchronous surface dressing for repairing rut, the old asphalt pavement overlay engineering that particularly suitable rut is serious.
4, the utility model adopts super sticky wearing layer as surface course, can improve the driving comfort on road surface, reduces noise, strengthens abrasion performance, greatly improves the durability of wearing layer.
Generally speaking, the utility model combines the advantage of crushed stone sealing and super sticky wearing layer, has the ability of excellent driving comfort, water proofing property, durability and prevention reflection crack.Construction technology is simple, uses paver vehicle cold mixing at the scene, mixing building heat need not mix, low-carbon energy-saving, greatly can reduce cost, be conducive to the spread of this maintenance technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: the former road surface of 1-, 2-crushed stone sealing, 21-modified asphalt layer, 22-macadam, the super sticky wearing layer of 3-.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is further described:
As shown in Figure 1, compound cold mixing cold-application ultrathin overlay paving structure described in the utility model, comprise crushed stone sealing 2 and super sticky wearing layer 3 from the bottom to top, crushed stone sealing 2 is on former road surface 1, and super sticky wearing layer 3 is on crushed stone sealing 2.Crushed stone sealing 2 comprises modified asphalt layer 21 and macadam 22 from the bottom to top, and super sticky wearing layer 3 comprises the super sticky cold-mix asphalt compound thin layer that one deck is mixed into fiber.Crushed stone sealing 2 can making one or more layers, the coverage scale that crushed stone sealing 2 is layered on road surface is 60 ~ 80%.Super sticky wearing layer 3 making one deck, thickness is 0.8 ~ 1.0cm.
Preferably, modified asphalt layer 21 adopts high-viscosity high-elasticity modified bitumen or rubber asphalt, and the particle diameter of macadam 22 medium stone is 2 ~ 4mm, 4 ~ 6mm or 6 ~ 10mm.
The laying step of compound cold mixing cold-application ultrathin overlay paving structure described in the utility model is as follows:
1, before construction, prospecting assessment is carried out to original road surface, select different modified bitumens as the binding material of crushed stone sealing 2 according to different requirements;
2, close traffic, cleans original road surface;
3, according to damaged degree and the rut situation on original road surface, select the size of ballast grain sizes, rubble adopts single grating particle diameter, size has 2 ~ 4mm usually, 4 ~ 6mm, 6 ~ 10mm etc. 3 grades, with synchronous macadam seal paver making one deck synchronous surface dressing 2, also can making Multi-layer synchronous crushed stone sealing 2 for repairing serious rut, the coverage scale of synchronous surface dressing 2 is 60 ~ 80%;
4, use the super sticky wearing layer paver vehicle a layer thickness that paves to be the super sticky cold-mix asphalt compound thin layer of 0.8 ~ 1.0cm, and roll accordingly;
5, open to traffic.
For a person skilled in the art, according to above technical scheme and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.

Claims (8)

1. a compound cold mixing cold-application ultrathin overlay paving structure, it is characterized in that: described compound cold mixing cold-application ultrathin overlay paving structure comprises crushed stone sealing and super sticky wearing layer from the bottom to top from road surface, described crushed stone sealing comprises modified asphalt layer and macadam from the bottom to top, and described super sticky wearing layer comprises the super sticky cold-mix asphalt compound thin layer that one deck is mixed into fiber.
2. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1, is characterized in that: described crushed stone sealing is one or more layers.
3. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1 and 2, is characterized in that: the coverage scale of described crushed stone sealing is 60 ~ 80%.
4. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1 and 2, is characterized in that: described modified asphalt layer is high-viscosity high-elasticity modified bitumen or rubber asphalt.
5. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1, is characterized in that: the thickness of described super sticky wearing layer is 0.8 ~ 1.0cm.
6. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1, is characterized in that: the particle diameter of described macadam medium stone is 2 ~ 4mm.
7. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1, is characterized in that: the particle diameter of described macadam medium stone is 4 ~ 6mm.
8. compound cold mixing cold-application ultrathin overlay paving structure according to claim 1, is characterized in that: the particle diameter of described macadam medium stone is 6 ~ 10mm.
CN201420623385.2U 2014-10-24 2014-10-24 A kind of compound cold mixing cold-application ultrathin overlay paving structure Active CN204224947U (en)

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CN201420623385.2U CN204224947U (en) 2014-10-24 2014-10-24 A kind of compound cold mixing cold-application ultrathin overlay paving structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105040546A (en) * 2015-08-13 2015-11-11 苏交科集团股份有限公司 Super adhering wearing layer roadway maintenance method
CN108529929A (en) * 2018-05-17 2018-09-14 江苏博程交通科技有限公司 Improve the high-strength thin-layer bituminous layer of unsticking suppression ice material spraying Interface Construction depth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105040546A (en) * 2015-08-13 2015-11-11 苏交科集团股份有限公司 Super adhering wearing layer roadway maintenance method
CN108529929A (en) * 2018-05-17 2018-09-14 江苏博程交通科技有限公司 Improve the high-strength thin-layer bituminous layer of unsticking suppression ice material spraying Interface Construction depth
CN108529929B (en) * 2018-05-17 2021-08-17 江苏博程交通科技有限公司 High-strength thin-layer asphalt layer for improving structural depth of debonding ice-suppressing material spraying interface

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