CN203977293U - Cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure - Google Patents
Cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure Download PDFInfo
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- CN203977293U CN203977293U CN201420407741.7U CN201420407741U CN203977293U CN 203977293 U CN203977293 U CN 203977293U CN 201420407741 U CN201420407741 U CN 201420407741U CN 203977293 U CN203977293 U CN 203977293U
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Abstract
The utility model is about a kind of cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, its structure is included in concrete slab and is provided with water-proof binding system, in water-proof binding system, repave dress Bridge Deck Pavement, wherein waterproof system is comprised of water-proof tack coat, pitch waterstop, anti-corrosion asphalt layer, prefabricated rhone.This Bridge Deck Pavement of mating formation is comprised of the upper laying of mat formation under modified stone mastic asphalt SMA-16 layer and modified stone mastic asphalt SMA-13.Its construction method is following steps: process bridge deck, spray water-proof tack coat, the anti-bonding macadam of spreading, roll water-proof tack coat, paste pitch waterstop, brushing anti-corrosion asphalt layer, prefabricated draining be installed.The utlity model has very high high temperature stability, antifatigue, anti-aging, water resistant are damaged and low temperature cracking resistance ability, and have good construction workability, thereby more have the value in industry.
Description
Technical field
The utility model relates to paving structure and the construction method in a kind of cement concrete bridge field, particularly relates to a kind of cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure and construction method thereof.
Background technology
Deck paving is a very important link in bridge process of construction, and this is because deck paving directly offers user, directly has influence on safety, the comfortableness of driving, and deck paving also plays an important role to protection bridge construction simultaneously.Yet along with the rapid economic development of China, heavy duty and overloaded vehicle exist in a large number, deck paving is in bridge use procedure, occurs the most the earliest the position of disease.
Asphalt Concrete Deck Pavement is widely applied in bridge engineering because it has the incomparable advantage of Bridge Surface Paving by Cement.Yet, reality be the imbalance of bridge technology development caused in bridge construction " heavy bridge construction; light deck paving ' situation; to Bridge Deck Pavement, need meet functional and structural dual needs simultaneously and consider not enough, simultaneously inconsiderate to the waterproof damage performance of Asphalt Concrete Deck Pavement.The increase of carrying due to the traffic volume and axle and the impact of climatic factor, therefore, there is more problem in Asphalt Concrete Deck Pavement, generally occurred serious early disease.Have a strong impact on the service quality of bridge, caused tremendous economic loss.Common types of damage has several as follows:
1, distortion class, rut, push, gather around bag, wave and depression;
2, cracking class, i.e. transverse joint, longitudinal joint, check crack, passing crack;
3, loose class, cheats groove, loose and peel off;
Current domestic Concrete Bridge Deck Pavement occurs that the main cause of destroying is that deck paving fails cooperative bearing together with bridge deck, and the anti-shear ability of deck paving and high-temperature stability are not enough.The reason that Asphalt Concrete Deck Pavement damages is:
(1) water-proof tack coat, between bridge construction and Flexible Pavement layer, plays vital effect to bridge deck pavement.This level should be able to play the fade function of forming a connecting link, and also can double as waterproofing course simultaneously.Research shows, many damages are brought out by this one deck, and its reason is to ignore the anti-shear performance of bridge construction and asphalt pavement, too relies on the bond effect of tack coat, cause surface layer to push, gather around the generation of bag, wave and rut, also can cause the damages such as bridge floor is torn, decortication.Therefore tack coat must possess enough sticky toughness and rational consumption, and plain asphalt is often difficult to meet this requirement.
(2) for cement concrete bridge, asphalt concrete pavement layer differs greatly on material property with bridge cement concrete constructions, and one is soft one firm, therefore can cause the discontinuous of stress and distortion under external force.In the much bigger bridge construction of rigidity, the flexibility layer of mating formation must have enough strength and stabilities, and especially shear strength is more crucial.In addition, deflection of bridge span is large, and vibrations are violent, and thermal stresses is remarkable, and the condition that these external force conditions all stand in road surface than same material is harsh.This just requires the pavement material must be more pliable and tougher durable, and has higher high temperature anti-shear performance.
(3) bridge deck pavement is having obvious difference with road surface structare layer aspect stress characteristic, thereby material and structure design are had to higher requirement.And conventionally the layer of mating formation is used as to prevailing roadway structure traditionally, carry out design and construction, according to its loading characteristic, do not carry out special Design and Disposing, cause design unreasonable, thereby bring out various earlier period damages.
(4) bridge deck structure, because of the design feature of self, is exposed in air completely, directly the impact of climate condition, thereby compare with material in road surface, deck paving layer material summer temp is higher, and winter temperature is lower, and identical weather conditions are more harsh on the impact of pavement material.So, this just has higher requirement to the temperature sensitivity of pavement material, and the high-temperature stability of bituminous mixture and low-temperature cracking-resistance have all been proposed to challenge, and this conflicting requirement, if born by common asphalt concrete structure, be often difficult to be competent at.
(5) water is one of main inducing of damaging of asphalt mixture surfacing, and due to the poor adhesion of pitch, the excessive or layer cracking of mating formation of void content causes moisture to ooze people and produce damage, as loose, and hole groove etc., the layer that makes to mat formation loses intensity and waterproof ability.If the design of bridge and the layer sewerage system of mating formation is improper, the moisture that oozes people cannot be discharged in time, and the whole layer of mating formation resembles and is placed among a large-scale water-bath, the damage of the layer that aggravated to mat formation.If waterproofing course is destroyed, infiltration is by directly etching pontic, thus the safety that jeopardizes bridge.Therefore perfect deck paving system and waterproof mat formation layer be guarantee Pavement Serviceability can key measure.
(6) China's overload of vehicle phenomenon is more outstanding at present, and some overload of vehicle are even greater than 100%, much larger than the current pavement design standard axle load of China.Mechanical analysis and actual conditions all prove that overweight car is bridge deck pavement material ' killer ', and the destruction of its comparison asphalt pavement material is larger, and this is that loading characteristic by deck installation structure layer determines.Therefore in general, bridge on large-scale overweight car should be strictly limited on the one hand, material of paving course grade and design standard will be improved on the other hand.
Because the defect that above-mentioned existing Asphalt Concrete Deck Pavement exists, the inventor is based on being engaged in this type of product design manufacture abundant practical experience and professional knowledge for many years, actively studied, to founding a kind of new a kind of cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure and construction method thereof, make it have more practicality.
Summary of the invention
The purpose of this utility model is, overcome the defect that existing Asphalt Concrete Deck Pavement exists, and provide new cement concrete bridge deck heat to spray polymer modified asphalt water-proof tack coat paving structure and construction method, technical problem to be solved is to make its paving structure must have very high high temperature stability simultaneously, take into account antifatigue, anti-aging, water resistant is damaged and low temperature cracking resistance ability, thereby and there is good construction workability and be more suitable for practicality, and there is the value in industry.
Another object of the present utility model is, cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure and construction method are provided, and technical problem to be solved is to make it, thereby is more suitable for practicality.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure the utility model proposes, it is the paving structure layer of laying on concrete slab, its paving structure layer is on concrete slab, to be provided with water-proof binding system, in water-proof binding system, repave dress Bridge Deck Pavement, wherein said waterproof body bonding system comprises:
---water-proof tack coat, is laid on dry, clean, the coarse interface on concrete slab;
---pitch waterstop, is arranged between the road kerb of the higher side of water-proof tack coat bridge deck and asphalt concrete pavement layer and along longitudinal elongated being abound with of bridge floor;
---anti-corrosion asphalt layer, between the road kerb inner side and asphalt concrete pavement layer of the lower side of bridge deck that is located at this water-proof tack coat compared with the longitudinal elongated painting of downside road kerb along bridge floor;
---prefabricated rhone, be arranged on this anti-corrosion asphalt layer dypass kerb inner side, along the longitudinal elongated perforation setting of bridge floor, this prefabricated rhone is on water-proof tack coat, and near anti-corrosion asphalt layer;
Wherein said pitch waterstop is communicated with described water-proof tack coat and described anti-corrosion asphalt layer; This Bridge Deck Pavement is than the high 10mm of prefabricated rhone.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, wherein said cement concrete bridge deck plate adopts ball blast sandblast that cement concrete bridge deck is removed to 3mm, or makes the undisguised rate of bridge deck concrete of concrete slab reach 20%.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, wherein said water-proof tack coat comprises: on the dried and clean forming, coarse interface, be equipped with waterproofing course and the anti-bonding macadam of spreading on this waterproofing course on concrete slab.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, is characterized in that: described waterproofing course is heat spray polymer modified asphalt, and spread quantity is 1.0 ㎏/m
2.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, the antiseized ballast grain sizes of wherein said antiseized macadam is 3～5mm, spreading amount is coverage scale 60～70%.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, wherein said pitch waterstop is hot-melting type, and this pitch waterstop thickness is 8mm, and height is concordant with bridge floor asphalt concrete pavement layer.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, wherein said anti-corrosion asphalt layer is emulsification modification anti-corrosion asphalt, this anti-corrosion asphalt layer is along bridge floor compared with longitudinal elongated being coated with of downside road kerb, and the height of this anti-corrosion asphalt layer is concordant with Bridge Deck Pavement.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, the end face of wherein said prefabricated rhone is than the low 10mm of Bridge Deck Pavement, and this prefabricated rhone is communicated with bridge floor spilled water hole.
Aforesaid cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: Bridge Deck Pavement is comprised of the upper laying of mat formation under modified stone mastic asphalt SMA-16 layer and modified stone mastic asphalt SMA-13, the layer of mating formation under wherein said modified stone mastic asphalt SMA-16 is laid on anti-bonding macadam, the layer of mating formation on described modified stone mastic asphalt SMA-13 is laid under modified stone mastic asphalt SMA-16 mats formation on layer, the layer thickness of mating formation under this modified stone mastic asphalt SMA-16 is 6cm, the layer thickness of mating formation on this modified stone mastic asphalt SMA-13 is 4cm.
By technique scheme, the utility model at least has following advantages:
1, due to bridge deck, be not subject to the impact of temperature, under hot conditions, its anti-shear ability can not reduce, more can not lose, therefore, interface processing of the present utility model adopts spray Shot Blasting, make the interface of bridge deck dry, clean, coarse, the utility model is only the variation that utilizes bridge deck self physical form, has greatly improved the high temperature anti-shear ability of deck paving.
2, the utility model waterproofing course adopts heat spray polymer modified asphalt, has improved the high temperature anti-shear ability of deck paving.
3, waterproof system of the present utility model adopts pitch waterstop to prevent from infiltrating rainwater between road kerb and bridge asphalt pavement layer, and bridge asphalt pavement layer and road kerb are brought to water erosion; Adopt prefabricated rhone to get rid of in time rainwater, and the total moisture of face asphalt mixture surfacing also can be discharged; Heat spray polymer modified asphalt good endurance, lear energy is strong, can make to infiltrate water in bridge asphalt pavement layer and discharge and corrosion concrete bridge floor not along water-proof tack coat.Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.
Concrete structure of the present utility model and method thereof are provided in detail by following examples and accompanying drawing.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model.
Fig. 2 is partial structurtes schematic diagram of the present utility model.
Wherein:
1: Bridge Deck Pavement
2: water-proof tack coat
2-1: waterproofing course 2-2: antiseized macadam
3: pitch waterstop 4: prefabricated rhone
5: anti-corrosion asphalt layer 6: concrete slab
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, a kind of cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure and its concrete structure of construction method and construction method, step, feature and effect thereof to according to the utility model proposes, be described in detail as follows.
Refer to shown in Fig. 1, Fig. 2, the cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure of the utility model preferred embodiment, it is the paving structure layer of laying on concrete slab 6, wherein said paving structure layer is the water-proof binding system that is provided with on concrete slab 6, repaves dress Bridge Deck Pavement 1 in water-proof binding system.
Wherein said waterproof body bonding system comprises:
---water-proof tack coat 2, is laid on dry, clean, the coarse interface on concrete slab 6;
---pitch waterstop 3, is arranged between the road kerb of the higher side of water-proof tack coat bridge deck and asphalt concrete pavement layer 1 and along longitudinal elongated being abound with of bridge floor;
---anti-corrosion asphalt layer 5, between the road kerb inner side and asphalt concrete pavement layer 1 of the lower side of bridge deck that is located at this water-proof tack coat 2 compared with the longitudinal elongated painting of downside road kerb along bridge floor;
---prefabricated rhone 4, be arranged on this anti-corrosion asphalt layer 5 dypass kerbs inner side, along the longitudinal elongated perforation setting of bridge floor, this prefabricated rhone 4 is on water-proof tack coat 2, and near anti-corrosion asphalt layer 5;
Wherein said pitch waterstop 3 is communicated with described water-proof tack coat 2 and described anti-corrosion asphalt layer 5; This Bridge Deck Pavement 1 is than the high 10mm of prefabricated tank.
Embodiment 2
The cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure of the utility model preferred embodiment is the paving structure layer of laying on concrete slab 6.Paving structure layer forms by being located at the water-proof binding system on concrete slab 6 and on water-proof binding system upper berth, Bridge Deck Pavement 1 being housed.Wherein,
Described cement concrete bridge deck plate 6 adopts ball blast sandblasts that cement concrete bridge deck plate 6 is removed to 3mm, or makes the undisguised rate of bridge deck concrete of cement concrete bridge deck plate 6 reach 20%, forms dried and clean, coarse interface.
Described waterproof system is comprised of water-proof tack coat 2, pitch waterstop 3, prefabricated rhone 4, anti-corrosion asphalt layer 5.Wherein said water-proof tack coat 2 is comprised of waterproofing course 2-1 and antiseized macadam 2-2.This waterproofing course 2-1 is heat spray polymer modified asphalt, and this heat spray polymer modified asphalt is spread on dry, clean, coarse cement concrete bridge deck plate 6 interfaces of ball blast blasting treatment, and spread quantity is 1.0 ㎏/m
2, form waterproofing course 2-1.Described antiseized macadam 2-2 is that the antiseized rubble of 3～5mm forms by particle diameter, and it is upper that this antiseized rubble is spread in waterproofing course 2-1, and spreading amount is coverage scale 60～70%, forms antiseized macadam 2-2.Described pitch waterstop 3 is hot-melting type, and the thickness of this pitch waterstop 3 is 8mm, and height is concordant with bridge floor asphalt concrete pavement layer 1.Described anti-corrosion asphalt layer 5 is emulsification modification anti-corrosion asphalt, and this anti-corrosion asphalt layer 5 is along bridge floor compared with longitudinal elongated being coated with of downside road kerb, and the height of this anti-corrosion asphalt layer 5 is concordant with Bridge Deck Pavement 1.The end face of described prefabricated rhone 4 is than the low 10mm of Bridge Deck Pavement 1, and this prefabricated rhone 4 is communicated with bridge floor spilled water hole.
Described Bridge Deck Pavement 1 is comprised of the upper laying of mat formation under modified stone mastic asphalt SMA-16 layer and modified stone mastic asphalt SMA-13, the layer of mating formation under wherein said modified stone mastic asphalt SMA-16 is laid on anti-bonding macadam 2-2, the layer of mating formation on described modified stone mastic asphalt SMA-13 is laid under modified stone mastic asphalt SMA-16 mats formation on layer, the layer thickness of mating formation under this modified stone mastic asphalt SMA-16 is 6cm, and the layer thickness of mating formation on this modified stone mastic asphalt SMA-13 is 4cm.Other structures are with embodiment 1.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the method for above-mentioned announcement and technology contents to make a little change or being modified to the equivalent embodiment of equivalent variations, but every content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a cement concrete bridge deck heat is sprayed polymer modified asphalt water-proof tack coat paving structure, at the upper paving structure layer of laying of concrete slab (6), it is characterized in that at described paving structure layer it being to be provided with water-proof binding system on concrete slab (6), in water-proof binding system, repave dress Bridge Deck Pavement (1), wherein said waterproof body bonding system comprises:
---water-proof tack coat (2), is laid on dry, clean, the coarse interface on concrete slab (6);
---pitch waterstop (3), is arranged between the road kerb of the higher side of water-proof tack coat bridge deck and asphalt concrete pavement layer (1) and along longitudinal elongated being abound with of bridge floor;
---anti-corrosion asphalt layer (5), is located at compared with the longitudinal elongated painting of downside road kerb along bridge floor between the road kerb inner side and asphalt concrete pavement layer (1) of the lower side of bridge deck of this water-proof tack coat (2);
---prefabricated rhone (4), be arranged on this anti-corrosion asphalt layer (5) dypass kerb inner side, along the longitudinal elongated perforation setting of bridge floor, this prefabricated rhone (4) is on water-proof tack coat (2), and near anti-corrosion asphalt layer (5);
Wherein said pitch waterstop (3) is communicated with described water-proof tack coat (2) and described anti-corrosion asphalt layer (5); This Bridge Deck Pavement (1) is than the high 10mm of prefabricated rhone (4).
2. cement concrete bridge deck heat according to claim 1 is sprayed polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: described concrete slab (6) adopts ball blast sandblast that cement concrete bridge deck is removed to 3mm, or makes the undisguised rate of bridge deck concrete of concrete slab (6) reach 20%.
3. cement concrete bridge deck according to claim 1 heat spray polymer modified asphalt water-proof tack coat paving structure, is characterized in that: described water-proof tack coat (2) comprising: on the upper dried and clean forming of concrete slab (6), coarse interface, be equipped with waterproofing course (2-1) and at the anti-bonding macadam (2-2) of the upper spreading of this waterproofing course (2-1).
4. according to the cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure described in any one in claim 1-3, it is characterized in that: described waterproofing course (2-1) is heat spray polymer modified asphalt, and spread quantity is 1.0 ㎏/m
2.
5. according to the cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure described in any one in claim 1-3, it is characterized in that: the antiseized ballast grain sizes of described antiseized macadam (2-2) is 3～5mm, and spreading amount is coverage scale 60～70%.
6. cement concrete bridge deck heat according to claim 1 is sprayed polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: described pitch waterstop (3) is hot-melting type, this pitch waterstop (3) thickness is 8mm, and height is concordant with bridge floor asphalt concrete pavement layer (1).
7. cement concrete bridge deck heat according to claim 1 is sprayed polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: described anti-corrosion asphalt layer (5) is emulsification modification anti-corrosion asphalt, this anti-corrosion asphalt layer (5) is along bridge floor compared with longitudinal elongated being coated with of downside road kerb, and the height of this anti-corrosion asphalt layer (5) is concordant with Bridge Deck Pavement (1).
8. cement concrete bridge deck heat according to claim 1 is sprayed polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: the end face of described prefabricated rhone (4) is than the low 10mm of Bridge Deck Pavement (1), and this prefabricated rhone (4) is communicated with bridge floor spilled water hole.
9. cement concrete bridge deck heat according to claim 1 is sprayed polymer modified asphalt water-proof tack coat paving structure, it is characterized in that: described Bridge Deck Pavement (1) is comprised of the upper laying of mat formation under modified stone mastic asphalt SMA-16 layer and modified stone mastic asphalt SMA-13, the layer of mating formation under wherein said modified stone mastic asphalt SMA-16 is laid on anti-bonding macadam (2-2), the layer of mating formation on described modified stone mastic asphalt SMA-13 is laid under modified stone mastic asphalt SMA-16 mats formation on layer, the layer thickness of mating formation under this modified stone mastic asphalt SMA-16 is 6cm, the layer thickness of mating formation on this modified stone mastic asphalt SMA-13 is 4cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407741.7U CN203977293U (en) | 2014-07-23 | 2014-07-23 | Cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407741.7U CN203977293U (en) | 2014-07-23 | 2014-07-23 | Cement concrete bridge deck heat spray polymer modified asphalt water-proof tack coat paving structure |
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| CN203977293U true CN203977293U (en) | 2014-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131512A (en) * | 2014-07-23 | 2014-11-05 | 中交第三公路工程局有限公司 | Thermal spray polymer modified asphalt waterproof adhesive layer paving structure of cement concrete bridge surface and construction method |
-
2014
- 2014-07-23 CN CN201420407741.7U patent/CN203977293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131512A (en) * | 2014-07-23 | 2014-11-05 | 中交第三公路工程局有限公司 | Thermal spray polymer modified asphalt waterproof adhesive layer paving structure of cement concrete bridge surface and construction method |
| CN104131512B (en) * | 2014-07-23 | 2016-08-17 | 中交第三公路工程局有限公司 | Cement concrete bridge deck thermal jet polymer modified asphalt water-proof tack coat paving structure and construction method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 |