CN203229873U - Low-noise bituminous pavement structure for bridge deck pavement layer - Google Patents
Low-noise bituminous pavement structure for bridge deck pavement layer Download PDFInfo
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- CN203229873U CN203229873U CN 201320223370 CN201320223370U CN203229873U CN 203229873 U CN203229873 U CN 203229873U CN 201320223370 CN201320223370 CN 201320223370 CN 201320223370 U CN201320223370 U CN 201320223370U CN 203229873 U CN203229873 U CN 203229873U
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Abstract
The utility model discloses a low-noise bituminous pavement structure for a bridge deck pavement layer. The low noise bituminous pavement structure for the bridge deck pavement layer comprises a bridge deck slab, and a surface layer, a waterproof bonding layer, a lower surface layer and a seal layer are paved on the bridge deck slab from top to bottom, wherein the surface layer is a GFC-13 grade open-graded bituminous mixture layer in 5 cm; the waterproof bonding layer is a double-layer SBS (styrene butadiene styrene) modified emulsified asphalt layer; the lower surface layer is an AC-20 grade dense-graded bituminous mixture layer in 6cm. The seal layer is a rubber asphalt gravel seal layer. Traffic noise on bridge deck can be obviously reduced, generation of water damage on bridge deck can be reduced, durability of the bridge deck pavement is improved, and vehicle driving security is improved.
Description
Technical field
The utility model belongs to the Communication and Transportation Engineering field, relates in particular to a kind of low-noise asphalt pavement form of structure for bridge deck pavement, is mainly used in the deck paving engineering of all types of bridges.
Background technology
Fast development along with highway communication, traffic noise is on the rise, especially particularly evident on bridge, when the noise contributions of driving vehicle is on bridge construction, because coupling, traffic noise after its stack will obviously be better than the roadbed paragraph, and the bridge deck traffic noise has become the problem of environmental pollution that resident along the line pays close attention to the most.And low-noise asphalt pavement is because its void content very high (generally between 18%～25%), can greatly eliminate finding time and compressing of air between tire and road surface, thereby play the noise reduction effect.Studies show that compare with the plain asphalt road surface, low-noise asphalt pavement can reduce traffic noise 3～8dB; Can make simultaneously rainwater discharge the road surface by the big clearance gap of compound inside rapidly, unlikely generation dabbles and water smoke, and the damage by water evil that can avoid the long-term ponding of bridge floor to cause improves cling property and the traffic safety performance on road surface.But in the past for worrying low-noise asphalt pavement stressed differing on roadbed, bridge, easily cause the consideration of road surface early disease in China because of poor durability, mating formation of low-noise asphalt pavement only is confined to the roadbed paragraph, on bridge floor, do not use.
Summary of the invention
In order to solve the applicability problem of low-noise asphalt pavement on bridge floor, the purpose of this utility model is, a kind of low-noise asphalt pavement structure for bridge deck pavement is provided, this road structure durability is strong, significantly reduce the bridge deck traffic noise, reduce bridge floor damage by water evil, improved vehicle safety.
For realizing above-mentioned task, the utility model adopts following technical solution:
A kind of low-noise asphalt pavement structure for bridge deck pavement comprises bridge deck, it is characterized in that, is equipped with surface course, water-proof tack coat, following surface layer and seal from top to bottom at bridge deck; Wherein, described surface course is that thickness is the OGFC-13 type open gradation bituminous mixture layer of 5cm; Described water-proof tack coat is double-deck SBS modified emulsifying asphalt layer; Described surface layer down is that thickness is the AC-20 type close-graded bituminous mixture layer of 6cm; Described seal is the rubber asphalt crushed stone sealing.
Other characteristics of the present utility model are:
Described OGFC-13 type open gradation bituminous mixture is made of coarse aggregate, fine aggregate, breeze, high-viscosity modified asphalt and polyester fiber, wherein is mixed with slaked lime in the breeze, and the mixing ratio of mixing of slaked lime and breeze is 3:7; High-viscosity modified asphalt is mixed with the ratio of 12:88 by TPS modifier and No. 90 matrix pitches and is mixed with; Polyester fiber accounts for 0.1% of OGFC-13 type bituminous mixture gross mass.
In the SBS modified emulsifying asphalt layer of described bilayer every layer to spill the cloth amount be 0.3kg/m
2
Described AC-20C type close-graded asphalt mixture gradation is thin partially, and wherein asphalt content is got the standard mix design quantity, and adds the polyester fiber that accounts for compound gross mass 0.2%.
Described rubber asphalt crushed stone sealing is made up of rubber asphalt and rubble, and wherein, rubber asphalt is made up of rubber powder and No. 70 matrix pitches, and rubber powder granularity wherein is 20 orders～30 orders, and its volume is 18%～20% of No. 70 matrix pitches; It is 2.2kg/m that rubber asphalt spills the cloth amount
2～2.4kg/m
2The rubble specification is 9.5～13.2mm, and through mixing building oven dry dedusting, heating-up temperature is 150～160 ℃, and the spreading temperature is not less than 130 ℃, and spreading amount is 15 ± 1kg/m
2, coverage scale is 85%.
The thickness of described surface course, middle surface layer and following surface layer all increases or reduces 1cm～3cm.
Low-noise asphalt pavement structure for bridge deck pavement of the present utility model has following advantage:
(1) surface course adopts OGFC-13 type open gradation bituminous mixture, effectively improve road surface noise reduction, antiskid and rainy day drainage, improved the adhesive power on vehicle tyre and road surface, reduce and dabble and spray, improved the rainy day traveling security, simultaneously can get rid of bridge floor ponding rapidly, prevent the generation of damage by water evil; And admixture account for the polyester fiber of compound gross mass 0.1%, compound is played reinforcement and stabilization, improved the compound shear behavior, can effectively prevent the generation of bridge floor rut, passing.
(2) water-proof tack coat adopts bilayer to spill cloth SBS modified emulsifying asphalt, and every layer is spilt the cloth amount is 0.3kg/m
2, effectively improve the contact area of surface course OGFC-13 type bituminous mixture and following surface layer AC-20C type bituminous mixture, prevent the road surface passing, and prevent that bridge floor ponding from developing downwards.
(3) surface layer adopts the AC-20C type close-graded bituminous mixture of Bei Leifa design under, and the design grating is thin partially, has increased the contact area of time surface layer and bridge deck, and the compatible deformation ability is good; Simultaneously admixture account for the polyester fiber of compound gross mass 0.2%, improved the anti-fatigue performance of time surface layer, and further improved the ability of the anti-rut of bridge floor and passing.
(4) seal adopts the rubber asphalt crushed stone sealing, can absorb the reflection stress in bridge deck crack, has greatly strengthened bridge floor resistance capacity to deformation, interlayer binding ability and waterproof ability, has recycled junked tire simultaneously, turns waste into wealth, and saves cost, the protection environment.
(5) adopt the ball blast technology can be disposable that bridge deck surface laitance layer, contaminant removal is clean, simultaneously hacking is carried out on the bridge deck surface, form the surface of even roughness, strengthened the cementitiousness of mat formation layer and bridge deck, thoroughly eliminated the harm of bleeding cement.
Description of drawings
Fig. 1 is the low-noise asphalt pavement structure schematic cross-sectional view for bridge deck pavement of the present utility model.
Mark among the figure is represented respectively: 1, surface course; 2, water-proof tack coat; 3, following surface layer; 4, seal; 5, bridge deck.
Below in conjunction with drawings and Examples the utility model is described in further detail.
The specific embodiment
Show after deliberation, can be used for bridge deck pavement fully on the basis that the low-noise asphalt pavement structure requires in design below satisfying:
1. the OGFC-13 bituminous mixture need guarantee to have higher water stability.
2. guarantee that the setting of interlayer water shutoff tack coat puts in place.
3. in the choosing of surface layer bituminous mixture structure, should take into full account bridge deck and be out of shape bigger characteristics under load action under bridge floor, compound should have compatible deformation ability preferably with bridge deck.
4. for bridge deck and the contact area of the layer of mating formation are increased, the Asphalt Mixture Design grating of following surface layer should satisfy on the basis of shear property, should develop to thin partially direction as far as possible.
5. in compound, add polyester fiber, to strengthen the shear behavior that improves compound.
Referring to Fig. 1, present embodiment provides a kind of low-noise asphalt pavement structure for deck paving, comprises bridge deck 5, above bridge deck 5 by from top to bottom surface course 1, water-proof tack coat 2, surface layer 3 and seal 4 down; Wherein:
It is the OGFC-13 type open gradation bituminous mixture of 5cm that surface course 1 adopts thickness, this OGFC-13 type open gradation bituminous mixture is made of coarse aggregate, fine aggregate, high-viscosity modified asphalt, breeze and polyester fiber, wherein: be mixed with slaked lime in the breeze, the mixing ratio of mixing of slaked lime and breeze is 3:7; High-viscosity modified asphalt is mixed with the ratio of 12:88 by TPS modifier and No. 90 matrix pitches and is mixed with, with measuring the standard mix design quantity; Polyester fiber accounts for 0.1% of OGFC-13 type bituminous mixture gross mass.
Water-proof tack coat 2 adopts SBS modified emulsifying asphalt layers, and the SBS modified emulsifying asphalt adopts bilayer to spill mode for cloth and spills cloth, wherein every layer to spill the cloth amount be 0.3kg/m
2It is, two-layer that to spill the cloth time interval be 12h.
Following surface layer 3 is the AC-20 type close-graded bituminous mixture layers that adopt the Bei Leifa design, and thickness is 6cm, and its design grating is thin partially, and wherein asphalt content is got the standard mix design quantity, and adds the polyester fiber that accounts for compound gross mass 0.2%.
Rubble specification in the rubber asphalt crushed stone sealing is 9.5mm～13.2mm, and rubble is dried dedusting through mixing building, and heating-up temperature is 150～160 ℃, and the temperature of spreading process is not less than 130 ℃, and spreading amount is 15 ± 1kg/m
2, coverage scale is about 85%.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the technical solution of the utility model, increase and decrease thickness or change grading limit all belong to the protection domain of the application's technical scheme.
Claims (3)
1. a low-noise asphalt pavement that is used for bridge deck pavement comprises bridge deck (5), it is characterized in that, in bridge deck (5) top by being equipped with surface course (1), water-proof tack coat (2), surface layer (3) and seal (4) down from top to bottom; Wherein:
Described surface course (1) is that thickness is the OGFC-13 type open gradation bituminous mixture of 5cm, and described water-proof tack coat (2) is double-deck SBS modified emulsifying asphalt layer; Described surface layer (3) down is that thickness is the AC-20 type close-graded bituminous mixture layer of 6cm; Described seal (4) is the rubber asphalt crushed stone sealing.
2. the low-noise asphalt pavement that is used for bridge deck pavement described in claim 1 is characterized in that, in the SBS modified emulsifying asphalt layer of described bilayer every layer to spill the cloth amount be 0.3kg/m
2
3. the low-noise asphalt pavement that is used for bridge deck pavement described in claim 1 is characterized in that the thickness of described surface course (1), middle surface layer (2) and following surface layer (3) all increases or reduce 1cm～3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223370 CN203229873U (en) | 2013-04-27 | 2013-04-27 | Low-noise bituminous pavement structure for bridge deck pavement layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223370 CN203229873U (en) | 2013-04-27 | 2013-04-27 | Low-noise bituminous pavement structure for bridge deck pavement layer |
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| Publication Number | Publication Date |
|---|---|
| CN203229873U true CN203229873U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320223370 Expired - Fee Related CN203229873U (en) | 2013-04-27 | 2013-04-27 | Low-noise bituminous pavement structure for bridge deck pavement layer |
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| CN (1) | CN203229873U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774553A (en) * | 2013-12-31 | 2014-05-07 | 广州新粤交通技术有限公司 | Steel bridge deck paving structure and construction method thereof |
| CN104652216A (en) * | 2015-02-09 | 2015-05-27 | 南京同安道路工程有限公司 | Water-discharging noise-lowering asphalt pavement structure of cement concrete bridge deck and laying process |
| CN105926456A (en) * | 2016-05-26 | 2016-09-07 | 济南城建集团有限公司 | Construction technology of bridge deck pavement structure |
| CN107542039A (en) * | 2017-10-10 | 2018-01-05 | 储君 | A kind of bridge floor laying method |
-
2013
- 2013-04-27 CN CN 201320223370 patent/CN203229873U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774553A (en) * | 2013-12-31 | 2014-05-07 | 广州新粤交通技术有限公司 | Steel bridge deck paving structure and construction method thereof |
| CN104652216A (en) * | 2015-02-09 | 2015-05-27 | 南京同安道路工程有限公司 | Water-discharging noise-lowering asphalt pavement structure of cement concrete bridge deck and laying process |
| CN105926456A (en) * | 2016-05-26 | 2016-09-07 | 济南城建集团有限公司 | Construction technology of bridge deck pavement structure |
| CN107542039A (en) * | 2017-10-10 | 2018-01-05 | 储君 | A kind of bridge floor laying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20160427 |