CN110344297A - A kind of heat-insulated pavement structure and construction method - Google Patents
A kind of heat-insulated pavement structure and construction method Download PDFInfo
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- CN110344297A CN110344297A CN201810319068.4A CN201810319068A CN110344297A CN 110344297 A CN110344297 A CN 110344297A CN 201810319068 A CN201810319068 A CN 201810319068A CN 110344297 A CN110344297 A CN 110344297A
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- heat
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- insulation layer
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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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
- E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
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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 heat-insulated bituminous pavement top structures.The heat-insulated bituminous pavement top structure is a kind of ultra-thin wearing layer, composite structure composed by thermal insulation layer and bituminous concrete, and ultra-thin wearing layer thickness is not more than 2cm in the structure, and thermal insulation layer is the sealing of heated bitumen and haydite composition.The invention also discloses the construction methods of above-mentioned heat-insulating bituminous pavement surface structure, it constructs on sub-surface first bituminous concrete, then the spread bi tumenf orr oad on bituminous concrete, then insulation particle is dispensed on bi tumenf orr oad form thermal insulation layer, ultra-thin wearing layer of finally constructing on thermal insulation layer.Compared to existing heat-insulating technique, good heat-insulation effect of the present invention, antiskid, endurance quality are excellent, and convenient construction.
Description
Technical field
The present invention relates to property asphalt pavement structure technical field more particularly to a kind of heat-insulated pavement structure
And its construction method.
Background technique
Asphalt is mainly used for the making of bituminous pavement, is a kind of typical temperature-sensitive material, and temperature is direct
Influence its pavement performance.Especially in summer, under solar radiation and high temperature, bituminous pavement absorbs a large amount of heat, and constantly
It is sent to the depths of pavement structure, makes bituminous pavement hot soak condition, shape is easy under the repeated action of vehicular load
At diseases such as tracks, road traffic is influenced.Therefore, it is necessary to take certain provision for thermal insulation to solve the problems, such as this.
There are mainly two types of existing bituminous pavement provision for thermal insulations.First, directly smearing heat-insulated painting on bituminous pavement top
Layer.This method can be directly and soon intercept heat is propagated downwards, but these coating material surface roughnesses are generally very
Small, its antiskid performance can be reduced by being applied to road crust, be easy to cause traffic accident, and its durability is low, costly, from length
It is from the point of view of remote and impracticable.Second, heat-barrier material is directly added in bituminous concrete in surface construction, it is made into heat-insulated coagulation
Soil, but existing research shows that this method can reduce the performance of bituminous concrete, influences the service performance of bituminous pavement.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a kind of heat-insulated bituminous pavement knots
Structure and its construction method have good heat-insulation effect, antiskid, endurance quality excellent, and the characteristics of convenient construction.A kind of heat-insulated pitch
Pavement structure and its construction method, which is characterized in that surface layer is the combination knot of ultra-thin wearing layer, thermal insulation layer and bituminous concrete
Structure, on the one hand, using sand grains formula ultra-thin wearing layer as surface layer structure, it ensure that the antiskid performance on road surface, on the other hand, every
The setting of thermosphere, makes road surface on the basis of with heat-insulating capability, and does not influence the intensity and use of asphalt pavement structure system
Performance.
Preferably, the ultra-thin wearing layer uses sand grains formula bituminous concrete SAC-6.7, and nominal maximum particle diameter is 6.7cm,
With a thickness of 1.5cm, gradation design is as follows:
| Screen-aperture (mm) | 9.5 | 6.7 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| The upper limit | 100 | 100 | 55 | 29 | 23 | 18 | 14 | 11 | 7 |
| Intermediate value | 100 | 90 | 50 | 25 | 20 | 15 | 12 | 9 | 5 |
| Lower limit | 100 | 80 | 45 | 21 | 17 | 12 | 10 | 7 | 3 |
Preferably, the insulating layer material group become 3-5mm haydite and asphalt tack coat, wherein haydite dosage be 4 ±
0.5kg/m2, since haydite has good water absorption character, adhesive layer cannot use common emulsified asphalt, and the present invention uses road
Asphalt is synchronous to dispense haydite, composition thermal insulation layer as adhesive layer.
Heat-insulating bituminous pavement surface structure construction method as described above are as follows: pitch coagulation of constructing first on sub-surface
Soil, then the spread heat insulating coat on bituminous concrete, then dispenses insulation particle, finally on thermal insulation layer on heat insulating coat
Construction ultra-thin wearing layer.Compared with prior art, the invention has the following advantages:
(1) good heat-insulation effect: the thermal insulation layer heat-conducting effect of use is poor, and the heat for preferably slowing down surface abrasion layer is downward
Transmitting, plays good thermoregulatory effect to lower layer's bituminous concrete.
(2) antiskid: surface uses sand grains formula bituminous concrete wearing course, by targetedly gradation design, improves surface
The construction depth of layer has good antiskid performance, and the especially rainy day can reduce water mist, moisture film, improve traffic safety.
(3) durable: road surface structare layer is made of conventional hot-mixed asphaltic concrete, pavement structural strength and durability and often
It is suitable to advise asphalt concrete pavement.
(4) convenient construction: thermal insulation layer dispenses technique, convenient construction using scene is synchronous.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of thermal insulation layer；
Fig. 2 is the structural schematic diagram of ultra-thin wearing layer；
Fig. 3 is the structural schematic diagram on heat-insulating bituminous road surface；
Specific embodiment:
For a clearer understanding of the technical characteristics, objects and effects of the present invention, with reference to the accompanying drawing to this hair
Bright technical solution is described in detail:
In order to solve existing bituminous pavement heat-insulating method antiskid performance, the deficiency of durability, present invention firstly provides one
Kind heat-insulating bituminous pavement structure and its construction method, as shown in figure 3, this heat-insulated pavement structure is by ultra-thin wearing layer, heat-insulated
Composite structure composed by layer and bituminous concrete, thermal insulation layer are made of the haydite of internal porous, have good insulation
Property, heat-blocking action is played to lower part bituminous concrete.
Function of surface characteristic, especially skid resistance needed for the present invention provides road driving by the ultra-thin wearing layer on surface
Can, because surface texture is on thermal insulation layer, the temperature of the structure sheaf is not adjustable, and therefore, its thickness should be thinned as far as possible to subtract
The small influence to whole pavement structure temperature.Conventional bituminous pavement surface layer thickness is generally 4cm, in order to which heat-insulated road surface is thinned
The thickness of structural facer, the invention proposes a kind of sand grains formula bituminous concrete SAC-6.7, nominal maximum particle diameter is
6.7cm, paving thickness 1.5cm, by specific gradation design (such as following table), so that its antiskid performance is mixed better than conventional pitch
Solidifying soil upper layer.
Heat-barrier material reduces the service performance of bituminous concrete in order to prevent, and the present invention proposes spreading method construction thermal insulation layer,
This thermal insulation layer is not involved in pavement structure stress, functions only as the effect of insulation.Thermal insulation layer by pitch and haydite synchronize spread
Cloth forms, and wherein haydite particle size range is 3-5mm, and haydite dosage is 4 ± 0.5kg/m2, since haydite has good water suction special
Property, pitch cannot use bi tumenf orr oad using common emulsified asphalt, the present invention.
When heat-insulated pavement structure in the present invention is constructed, bituminous concrete of constructing on sub-surface first, such as Fig. 1 institute
Show；Then synchronous on bituminous concrete to dispense bi tumenf orr oad and haydite, thermal insulation layer is formed, as shown in Figure 2；Finally every
It constructs on thermosphere ultra-thin wearing layer, as shown in Figure 3.
In order to verify the effect of technical solution of the present invention, the present invention has carried out following comparative testing:
Firstly, the cylinder specimen that the diameter for being separately formed following three kinds of structures combination is 150mm:
Structure one: 4cmAC-13+6cmAC-20+8cmAC-25
Two: 1.5cm SAC-6.7+6.5cm AC-20+10cmAC-25 (not being laid with thermal insulation layer) of structure
Three: 1.5cm SAC-6.7+6.5cmAC-20+10cmAC-25 of structure (is laid with thermal insulation layer)
Then, in addition to top surface, each face of test specimen is thermally insulated using insulating moulding coating, so that heat is only passed from surface
It passs, simulates bituminous pavement conduction process, and the punching insertion temperature sensor at the 4cm and 14cm of test specimen.
Then, test specimen is placed in 60 DEG C of baking oven, the temperature at Timing measurement three kinds of structures 4cm and 14cm.
The temperature of each structure different periods is as shown in the table:
According to comparison data shown in upper table it can be found that the heat-transfer effect of structure one, structure two is suitable, in 60 DEG C of baking ovens
The temperature after 480min at 4cm is placed close to 60 DEG C, and the structure three of thermal insulation layer is set after 480min, internal temperature increase is very
It is small, illustrate that heat-insulated pavement structure of the invention has good heat insulation.
Claims (4)
1. a kind of heat-insulated bituminous pavement top structure, it is characterised in that surface layer is ultra-thin wearing layer, thermal insulation layer and pitch coagulation
The composite structure of soil, on the one hand, using sand grains formula ultra-thin wearing layer as surface layer structure, ensure that road surface antiskid performance and
Durability, on the other hand, the setting of thermal insulation layer makes road surface on the basis of with heat-insulating capability, and does not influence pavement structure body
The intensity and service performance of system.
2. as described in claim 1, ultra-thin wearing layer uses sand grains formula bituminous concrete SAC-6.7, nominal maximum particle diameter is
6.7cm, with a thickness of 1.5cm, gradation design is as follows:
3. as described in claim 1, insulating layer material group become 3-5mm haydite and asphalt tack coat, wherein haydite dosage be 4 ±
0.5kg/m2, asphalt tack coat material therefor is bi tumenf orr oad, and dosage is 2 ± 0.3kg/m2。
4. heat-insulating bituminous pavement surface structure construction method as described in claim 1, which is characterized in that first on sub-surface
Construct bituminous concrete, the then spread bi tumenf orr oad on bituminous concrete, then dispensed on bi tumenf orr oad every
Hot particle forms thermal insulation layer, ultra-thin wearing layer of finally constructing on thermal insulation layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319068.4A CN110344297A (en) | 2018-04-03 | 2018-04-03 | A kind of heat-insulated pavement structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319068.4A CN110344297A (en) | 2018-04-03 | 2018-04-03 | A kind of heat-insulated pavement structure and construction method |
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| CN110344297A true CN110344297A (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016347A (en) * | 2021-11-11 | 2022-02-08 | 重庆海聚道路材料有限公司 | Heat-insulating ultra-thin wearing layer for road upper layer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046286A1 (en) * | 2001-12-20 | 2003-06-05 | Nippo Corporation | Solar heat cutout paved body |
| JP2005220531A (en) * | 2004-02-03 | 2005-08-18 | Ibaraki Line Kk | Side strip and formation method of side strip |
| JP2006265048A (en) * | 2005-03-24 | 2006-10-05 | Mino Ceramic Co Ltd | Temperature rise suppressing aggregate |
| CN103342579A (en) * | 2013-05-10 | 2013-10-09 | 长安大学 | Thermal-resistant ceramsite coating used for asphalt pavements and preparation method thereof |
| CN103588423A (en) * | 2013-11-18 | 2014-02-19 | 江苏省交通科学研究院股份有限公司 | Composite synergistic close-graded ultrathin wearing layer asphalt mixture |
| CN204212019U (en) * | 2014-09-11 | 2015-03-18 | 广西桂东高速公路有限公司 | Phase transformation cooling asphalt pavement structure |
| CN105860442A (en) * | 2016-06-20 | 2016-08-17 | 长安大学 | Pouring type heat and track resistant material for asphalt pavement |
| CN205617183U (en) * | 2015-11-18 | 2016-10-05 | 长安大学 | Novel thin layer top facing structure is joined in marriage to level of confidentiality |
-
2018
- 2018-04-03 CN CN201810319068.4A patent/CN110344297A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046286A1 (en) * | 2001-12-20 | 2003-06-05 | Nippo Corporation | Solar heat cutout paved body |
| JP2005220531A (en) * | 2004-02-03 | 2005-08-18 | Ibaraki Line Kk | Side strip and formation method of side strip |
| JP2006265048A (en) * | 2005-03-24 | 2006-10-05 | Mino Ceramic Co Ltd | Temperature rise suppressing aggregate |
| CN103342579A (en) * | 2013-05-10 | 2013-10-09 | 长安大学 | Thermal-resistant ceramsite coating used for asphalt pavements and preparation method thereof |
| CN103588423A (en) * | 2013-11-18 | 2014-02-19 | 江苏省交通科学研究院股份有限公司 | Composite synergistic close-graded ultrathin wearing layer asphalt mixture |
| CN204212019U (en) * | 2014-09-11 | 2015-03-18 | 广西桂东高速公路有限公司 | Phase transformation cooling asphalt pavement structure |
| CN205617183U (en) * | 2015-11-18 | 2016-10-05 | 长安大学 | Novel thin layer top facing structure is joined in marriage to level of confidentiality |
| CN105860442A (en) * | 2016-06-20 | 2016-08-17 | 长安大学 | Pouring type heat and track resistant material for asphalt pavement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016347A (en) * | 2021-11-11 | 2022-02-08 | 重庆海聚道路材料有限公司 | Heat-insulating ultra-thin wearing layer for road upper layer |
| CN114016347B (en) * | 2021-11-11 | 2023-04-28 | 重庆海聚道路材料有限公司 | Heat-insulating ultrathin wearing layer for road upper layer |
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