CN108867229A - Cracking resistance thermoregulation cement base pavement structure - Google Patents
Cracking resistance thermoregulation cement base pavement structure Download PDFInfo
- Publication number
- CN108867229A CN108867229A CN201810789371.0A CN201810789371A CN108867229A CN 108867229 A CN108867229 A CN 108867229A CN 201810789371 A CN201810789371 A CN 201810789371A CN 108867229 A CN108867229 A CN 108867229A
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- China
- Prior art keywords
- modified
- base
- thermoregulation
- asphalt concrete
- cracking resistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of cracking resistance thermoregulation cement base pavement structures, it is made of modified asphalt concrete upper layer, modified emulsified asphalt adhesive layer, the Sub-course Asphalt Concrete, modified pitch synchronous surface dressing and embedded squeezing crack resistance type cement stabilized macadam base, the upper surface of the modified emulsified asphalt adhesive layer is bonded with the bottom face of modified asphalt concrete upper layer, and lower end surface is bonded with the upper surface of the Sub-course Asphalt Concrete；The upper surface of the modified pitch synchronous surface dressing is bonded with the bottom face of the Sub-course Asphalt Concrete, and lower end surface is bonded with the upper surface of embedded squeezing crack resistance type cement stabilized macadam base；Temperature adjustment phase change grains are provided in the modified asphalt concrete upper layer.Advantage is：The present invention can be reduced basic crack, automatic adjustment pavement temperature, extend Road Service Life and promote traffic safety.
Description
Technical field
The invention belongs to town road construction technique fields, tie more particularly, to a kind of cracking resistance thermoregulation cement base road surface
Structure.
Background technique
Currently, the sub-surface of town road is based on cement stabilized macadam, this road surface is mainly characterized by construction party mostly
Just and quality is stablized, and still, in some sections, the section being especially connected to construction, which can often pass through heavy duty
Engineering truck, since engineering truck tonnage is heavier, when it is often current, this proposes challenge to the cracking resistance of straw-cement particleboard；
40 DEG C or more are even up to often beyond 35 DEG C additionally, due in summer most area temperature, and asphalt material is to solar energy
Absorption causes bituminous pavement surface temperature often as high as 60 DEG C or more, and 80 DEG C or more are even up under extreme weather, has been more than road
The softening point temperature of road pitch generates thermostability disease, seriously so that the high-temperature stability of bituminous pavement meets a severe test
Influence the service performance and traffic safety of bituminous pavement.
Summary of the invention
The purpose of the present invention is in view of the deficiency of the prior art, provide a kind of cracking resistance thermoregulation cement base road surface
Structure, it, which has, can be reduced basic crack, automatic adjustment pavement temperature, extends Road Service Life and promote traffic safety
Feature.
To achieve the goals above, the technical scheme adopted by the invention is that：A kind of cracking resistance thermoregulation cement base road surface knot
Structure, it is synchronous by modified asphalt concrete upper layer, modified emulsified asphalt adhesive layer, the Sub-course Asphalt Concrete, modified pitch
Crushed stone sealing and embedded squeezing crack resistance type cement stabilized macadam base composition, the upper surface of the modified emulsified asphalt adhesive layer and modification
The bottom face of bituminous concrete upper layer is bonded, and lower end surface is bonded with the upper surface of the Sub-course Asphalt Concrete；The modification
The upper surface of pitch synchronous surface dressing is bonded with the bottom face of the Sub-course Asphalt Concrete, lower end surface and embedded squeezing crack resistance type water
The upper surface of cement-stabilizing broken stone base is bonded；Temperature adjustment phase change grains are provided in the modified asphalt concrete upper layer.
Preferably, the modified asphalt concrete upper layer with a thickness of 40mm~60mm.
Preferably, the modified emulsified asphalt adhesive layer with a thickness of 0.4mm~0.6mm.
Preferably, the Sub-course Asphalt Concrete with a thickness of 60mm~80mm.
Preferably, the modified pitch synchronous surface dressing with a thickness of 10mm~20mm.
Preferably, embedded squeezing crack resistance type cement stabilized macadam base with a thickness of 100mm~260mm.
Preferably, ballast grain sizes used in embedded squeezing crack resistance type cement stabilized macadam base are in 4.75mm~37.5mm
Between.
The temperature adjustment phase change grains are made of paraffin particles or fatty acid particle or both combination.
After adopting the above structure, the invention has the advantages that compared with the prior art,：The present invention gives full play to each knot
The performance advantage of structure layer enhances base's stability, reduces and delays the generation and development of road surface transmitting crackle, improve asphalt surface course
Adhesive property and waterproof performance between base improve pavement structural strength, improve the pavement performance on road surface.
Detailed description of the invention
Fig. 1 is planar structure schematic diagram of the invention.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention, ties below
Closing drawings and examples, the present invention is further described.
Embodiment, as shown in Figure 1：A kind of cracking resistance thermoregulation cement base pavement structure comprising on modified asphalt concrete
Surface layer 10, modified emulsified asphalt adhesive layer 11, the Sub-course Asphalt Concrete 12, modified pitch synchronous surface dressing 13 and embedded squeezing are anti-
Split type cement stabilized macadam base 14, modified emulsified asphalt adhesive layer 11 with a thickness of 0.4mm~0.6mm, under normal circumstances
Selection 0.5mm is preferred, and end face is bonded with the bottom face of modified asphalt concrete upper layer 10 thereon, lower end surface and pitch coagulation
The upper surface of native cutting optimal 12 is bonded；Modified asphalt concrete upper layer 10 with a thickness of 40mm~60mm, under normal circumstances
Selection 50mm is preferred；And the Sub-course Asphalt Concrete 12 with a thickness of 60mm~80mm, select 70mm to be preferred under normal circumstances.
Modified pitch synchronous surface dressing 13 with a thickness of 10mm~20mm, select 15mm to be preferred under normal circumstances, thereon end face with
The bottom face of the Sub-course Asphalt Concrete 12 is bonded, the upper surface of lower end surface and embedded squeezing crack resistance type cement stabilized macadam base 14
Fitting；Embedded squeezing crack resistance type cement stabilized macadam base 14 with a thickness of 100mm~260mm, and its ballast grain sizes 4.75mm~
Between 37.5mm, under normal circumstances its thickness selection 180mm be preferred, and its ballast grain sizes can according to practical recruitment situation into
The corresponding selection of row.Above-mentioned structure can optimize the water stability detritus Semi-rigid Road Base Course generallyd use at present
And prevention and cure of crack limits cement consumption by optimization of mix proportion on the basis of meeting design strength, synthesizes grade meeting
Fines, powder dosage are limited in the requirement matched, the major measures such as strict control water content enhance the anti-drying shrinkage of water-stable gravel
Ability and the temperature resistance contracting ability of water-stable gravel material effectively improve surface evenness to greatly reduce basic crack, mention
Rise pavement performance and Road Service Life.It is provided with temperature adjustment phase change grains 15 in modified asphalt concrete upper layer 10, adjusts
Warm phase change grains 15 are made of paraffin particles or fatty acid particle or both combination, and temperature adjustment phase change grains 15 pass through solid-liquid
Heat absorption-exothermic process of phase transformation conversion adjusts the temperature on road surface, mitigates the temperature on hot weather road surface, improves the use on road surface
Performance and promotion traffic safety.
Claims (8)
1. a kind of cracking resistance thermoregulation cement base pavement structure, it is characterised in that：The base road surface is by modified asphalt concrete
Surface layer (10), modified emulsified asphalt adhesive layer (11), the Sub-course Asphalt Concrete (12), modified pitch synchronous surface dressing (13)
And embedded squeezing crack resistance type cement stabilized macadam base (14) composition, the upper surface of the modified emulsified asphalt adhesive layer (11) and modification
The bottom face of bituminous concrete upper layer (10) is bonded, and lower end surface is bonded with the upper surface of the Sub-course Asphalt Concrete (12)；
The upper surface of the modified pitch synchronous surface dressing (13) is bonded with the bottom face of the Sub-course Asphalt Concrete (12), lower end
Face is bonded with the upper surface of embedded squeezing crack resistance type cement stabilized macadam base (14)；In the modified asphalt concrete upper layer (10)
It is provided with temperature adjustment phase change grains (15).
2. cracking resistance thermoregulation cement according to claim 1 base pavement structure, it is characterised in that：The modified pitch coagulation
Native upper layer (10) with a thickness of 40mm~60mm.
3. cracking resistance thermoregulation cement according to claim 1 or 2 base pavement structure, it is characterised in that：The modified emulsifying
Asphalt tack coat (11) with a thickness of 0.4mm~0.6mm.
4. cracking resistance thermoregulation cement according to claim 3 base pavement structure, it is characterised in that：Under the bituminous concrete
Surface layer (12) with a thickness of 60mm~80mm.
5. cracking resistance thermoregulation cement according to claim 4 base pavement structure, it is characterised in that：The modified pitch is synchronous
Crushed stone sealing (13) with a thickness of 10mm~20mm.
6. cracking resistance thermoregulation cement according to claim 5 base pavement structure, it is characterised in that：The embedded squeezing crack resistance type water
Cement-stabilizing broken stone base (14) with a thickness of 100mm~260mm.
7. cracking resistance thermoregulation cement according to claim 6 base pavement structure, it is characterised in that：The embedded squeezing crack resistance type water
Ballast grain sizes used in cement-stabilizing broken stone base (14) are between 4.75mm~37.5mm.
8. cracking resistance thermoregulation cement according to claim 1 base pavement structure, it is characterised in that：The temperature adjustment phase change grains
(15) it is made of paraffin particles or fatty acid particle or both combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789371.0A CN108867229A (en) | 2018-07-18 | 2018-07-18 | Cracking resistance thermoregulation cement base pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789371.0A CN108867229A (en) | 2018-07-18 | 2018-07-18 | Cracking resistance thermoregulation cement base pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108867229A true CN108867229A (en) | 2018-11-23 |
Family
ID=64303230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810789371.0A Pending CN108867229A (en) | 2018-07-18 | 2018-07-18 | Cracking resistance thermoregulation cement base pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108867229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516736A (en) * | 2018-11-30 | 2019-03-26 | 中南大学 | A kind of temperature shrinkage active control type cement stabilized macadam and preparation method thereof |
| CN114108415A (en) * | 2021-12-08 | 2022-03-01 | 武汉理工大学 | Double-layer phase-change temperature-adjusting asphalt pavement structure |
-
2018
- 2018-07-18 CN CN201810789371.0A patent/CN108867229A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516736A (en) * | 2018-11-30 | 2019-03-26 | 中南大学 | A kind of temperature shrinkage active control type cement stabilized macadam and preparation method thereof |
| CN109516736B (en) * | 2018-11-30 | 2020-08-04 | 中南大学 | Temperature shrinkage active control type cement stabilized macadam and preparation method thereof |
| CN114108415A (en) * | 2021-12-08 | 2022-03-01 | 武汉理工大学 | Double-layer phase-change temperature-adjusting asphalt pavement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181123 |