CN204825551U - Waterproof crack control bituminous paving structure - Google Patents
Waterproof crack control bituminous paving structure Download PDFInfo
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- CN204825551U CN204825551U CN201520619654.2U CN201520619654U CN204825551U CN 204825551 U CN204825551 U CN 204825551U CN 201520619654 U CN201520619654 U CN 201520619654U CN 204825551 U CN204825551 U CN 204825551U
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Abstract
The utility model provides a waterproof crack control bituminous paving structure, includes that its technical essential is by lower supreme road bed, basic unit, surface course and wearing and tearing layer: the road bed is a morals and manners rock road bed, the basic unit is cement stabilized macadam base, the surface course includes by lower supreme lower surface course, well surface course reaches goes up the surface course, the surface course is mekralon asphalt concrete layer down, well surface course is glass fiber asphalt concrete layer, it is layer cloth formula steel fibre bitumen concrete layer to go up the surface course, the rubberized asphalt chip seal who has the rubble is inlayed for surperficial spread in the wearing and tearing layer, down between surface course and the well surface course, the glutinous layer of emulsified asphalt oil has all been laid between well surface course and the last surface course, waterproof seal has been laid down between surface course and the basic unit, be equipped with glass fiber grid layer between waterproof seal and the basic unit, the road bed reinforcement grout bed of material has been laid between basic unit and the road bed. The utility model discloses can improve the degree of resistance to wearing on road surface, prevent the moisture invasion, can effectively restrain the reflective cracking of cement stabilized macadam base production.
Description
Technical field:
The utility model belongs to road structure, is specifically related to a kind of waterproof anticracking asphalt pavement structure.
Background technology:
Flexible pavement is under the long term of natural environment and car load, can present the phenomenons such as cracking, loose, aging and wearing and tearing gradually, as keeped in repair not in time, damaged road surface will make basic unit soften by the erosion of surface water, the bulk strength on road surface declines, and causes road surface to go to pot completely.Wherein the Moisture Damage of flexible pavement main manifestations on road surface be loose, produce hole groove etc., directly cause the destruction of asphalt pavement structural layer, had a strong impact on the using function on road surface, shorten the application life on road surface.Again because Asphalt Pavement Base generally adopts semi-rigid type base, itself easily produces reflection crack, the shrinkage cracking of semi-rigid type base easily reflexes to surface layer, such rainwater is easy to just stretch into road structure inside along crack, even infiltrates in roadbed and causes roadbed settlement, thus the formation in aggravation crack, and this crack disease is in road surface operation phase maintenance difficulty, heavily must spread from roadbed to road-surface milling, its complex operation, time-consuming strength, and costly.In this external asphalt pavement structure, wearing layer is positioned at the top of structure, directly and atmosphere, and bear the direct effect of wheel load, therefore, the quality and performance of wearing layer directly affects the service level on road surface, if wearing layer asphalt mixture design is improper, construction quality is not good, the earlier period damage problems such as road surface Moisture Damage and rut will be caused, cause huge economic loss and bad social influence.
Summary of the invention:
The utility model is for overcoming the deficiencies in the prior art, provide a kind of waterproof anticracking asphalt pavement structure, it can improve the degree of resistance to wearing on road surface, prevents moisture intrusion, and can more effectively absorb and cut down inter-laminar stress, effectively can contain the reflection crack that cement stabilized macadam base produces.
Waterproof anticracking asphalt pavement structure of the present utility model, comprise roadbed from the bottom to top, basic unit, surface layer and wearing layer, technical scheme adopted for achieving the above object is: the decomposed rock roadbed of described roadbed to be thickness be 20cm, the cement stabilized macadam base of described basic unit to be thickness be 20cm, described surface layer comprises cutting optimal from the bottom to top, middle surface layer and upper layer, the polypropylene fibre asphalt concrete layer of described cutting optimal to be thickness be 7cm, the glass fiber asphalt layer of concrete of described middle surface layer to be thickness be 5cm, the layered steel fiber asphalt concrete layer of described upper layer to be thickness be 4cm, the surperficial spreading of described wearing layer to be thickness be 2.5cm is inlaid with the rubber asphalt crushed stone sealing of rubble, between described cutting optimal and middle surface layer, all being equipped with thickness between middle surface layer and upper layer is that the mulseal of 2cm sticks layer oil, waterproof sealing is equipped with between cutting optimal and basic unit, the glass fiber grid gate layer that thickness is 1.5cm is provided with between waterproof sealing and basic unit, the roadbed strengthening grouting bed of material that thickness is 2cm is equipped with between basic unit and roadbed.
As further improvement of the utility model, the surperficial spreading of described waterproof sealing to be thickness be 2.5cm has the EVA rubber asphalt stress absorbing layer of rubble, and can absorb the concentrated stress of location of cracks, the reflection crack stoping basic unit to produce upwards transmits.
As further improvement of the utility model, the spreading amount of described wearing layer medium stone is 15-22kg/ ㎡, can ensure rubble equably spreading be embedded in rubber asphalt and form wearing layer.
As further improvement of the utility model, the stone sizes in wearing layer and waterproof sealing is 9.5-13.2mm, and the surface that the rubble of this diameter can embed rubber asphalt completely forms the thick crack reflection deck of about 1cm, thus the reflection in effective containment crack.
As further improvement of the utility model, the rubble in wearing layer and waterproof sealing is basaltic broken stone, and its stone matter is hard.
The beneficial effects of the utility model are: the utility model adopts rubber asphalt crushed stone sealing directly as wearing layer, there is very strong non-deformability, the stress can alleviating location of cracks is concentrated, the crack much occurred can be repaired, prevent flexible pavement from forming reflection crack, stop road surfaces moisture penetration in road structure, prevent moisture from destroying road structure, also can improve the abrasion resistance on road surface, there is good braking quality, wearing layer can bear the direct effect power of wheel weight, protective action is played to surface layer, prevent surface layer premature abrasion and produce the phenomenon of cheating groove ponding, surface layer is made up of three layers of fibrous concrete layer, degree of resistance to wearing and the bearing capacity of surface layer can be strengthened, prevent moisture intrusion, the mulseal arranged between each surface layer sticks the oily adhesion stress that can improve between each surface layer of layer, waterproof sealing between surface layer and basic unit can improve both cohesion, and waterproof sealing is surperficial spreading the EVA rubber asphalt stress absorbing layer of rubble, the concentrated stress at Absorbable rod basic crack position, the reflection crack stoping basic unit to produce upwards transmits, roadbed adopts decayed rock roadbed, road surface bearing capacity can be improved, road surface is made to be applicable to carrying large-tonnage automobile, the roadbed strengthening grouting bed of material be layed on roadbed carries out reinforcement to roadbed, the sealing of roadbed can be improved, prevent moisture from invading roadbed, and then improve the application life of roadbed.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
With reference to Fig. 1, this waterproof anticracking asphalt pavement structure, comprise roadbed 1 from the bottom to top, basic unit 2, surface layer 3 and wearing layer 4, the decomposed rock roadbed of described roadbed 1 to be thickness be 20cm, the cement stabilized macadam base of described basic unit 2 to be thickness be 20cm, described surface layer 3 comprises cutting optimal 31 from the bottom to top, middle surface layer 32 and upper layer 33, the polypropylene fibre asphalt concrete layer of described cutting optimal 31 to be thickness be 7cm, the glass fiber asphalt layer of concrete of described middle surface layer 32 to be thickness be 5cm, the layered steel fiber asphalt concrete layer of described upper layer 33 to be thickness be 4cm, the surperficial spreading of described wearing layer 4 to be thickness be 2.5cm is inlaid with the rubber asphalt crushed stone sealing that diameter is the basaltic broken stone of 9.5-13.2mm, the spreading amount of its medium stone is 15-22kg/ ㎡, it has very strong non-deformability, the stress can alleviating location of cracks is concentrated, the crack much produced can be repaired, prevent flexible pavement from forming reflection crack, stop road surfaces moisture penetration in road structure, prevent moisture from destroying road structure, between described cutting optimal 31 and middle surface layer 32, all being equipped with thickness between middle surface layer 32 and upper layer 33 is that the mulseal of 2cm sticks layer oil 5, the adhesion stress between each surface layer can be improved, waterproof sealing 6 is equipped with between cutting optimal 31 and basic unit 2, the surperficial spreading of described waterproof sealing 6 to be thickness be 2.5cm has diameter to be the EVA rubber asphalt stress absorbing layer of the basaltic broken stone of 9.5-13.2mm, the concentrated stress at Absorbable rod basic crack position, the reflection crack stoping basic unit to produce upwards transmits, the glass fiber grid gate layer 7 that thickness is 1.5cm is provided with between waterproof sealing 6 and basic unit 2, can prevent moisture from invading basic unit 2 further, the roadbed strengthening grouting bed of material 8 that thickness is 2cm is equipped with between basic unit 2 and roadbed 1, the roadbed strengthening grouting bed of material 8 take high-strength material as aggregate, using cement as bonding agent, be aided with upper flow regime, microdilatancy, the materials such as anti-segregation are formulated, certain water gaging is added during construction, can use after stirring.
Claims (5)
1. a waterproof anticracking asphalt pavement structure, comprise roadbed (1) from the bottom to top, basic unit (2), surface layer (3) and wearing layer (4), it is characterized in that: the decomposed rock roadbed of described roadbed (1) to be thickness be 20cm, the cement stabilized macadam base of described basic unit (2) to be thickness be 20cm, described surface layer (3) comprises cutting optimal (31) from the bottom to top, middle surface layer (32) and upper layer (33), the polypropylene fibre asphalt concrete layer of described cutting optimal (31) to be thickness be 7cm, the glass fiber asphalt layer of concrete of described middle surface layer (32) to be thickness be 5cm, the layered steel fiber asphalt concrete layer of described upper layer (33) to be thickness be 4cm, the surperficial spreading of described wearing layer (4) to be thickness be 2.5cm is inlaid with the rubber asphalt crushed stone sealing of rubble, between described cutting optimal (31) and middle surface layer (32), all being equipped with thickness between middle surface layer (32) and upper layer (33) is that the mulseal of 2cm sticks layer oil (5), waterproof sealing (6) is equipped with between cutting optimal (31) and basic unit (2), the glass fiber grid gate layer (7) that thickness is 1.5cm is provided with between waterproof sealing (6) and basic unit (2), the roadbed strengthening grouting bed of material (8) that thickness is 2cm is equipped with between basic unit (2) and roadbed (1).
2. a kind of waterproof anticracking asphalt pavement structure as claimed in claim 1, is characterized in that: the surperficial spreading of described waterproof sealing (6) to be thickness be 2.5cm has the EVA rubber asphalt stress absorbing layer of rubble.
3. a kind of waterproof anticracking asphalt pavement structure as claimed in claim 1, is characterized in that: the spreading amount of described wearing layer (4) medium stone is 15-22kg/m
2.
4. a kind of waterproof anticracking asphalt pavement structure as claimed in claim 2, is characterized in that: the stone sizes in wearing layer (4) and waterproof sealing (6) is 9.5-13.2mm.
5. a kind of waterproof anticracking asphalt pavement structure as claimed in claim 2, is characterized in that: the rubble in wearing layer (4) and waterproof sealing (6) is basaltic broken stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619654.2U CN204825551U (en) | 2015-08-17 | 2015-08-17 | Waterproof crack control bituminous paving structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520619654.2U CN204825551U (en) | 2015-08-17 | 2015-08-17 | Waterproof crack control bituminous paving structure |
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| CN204825551U true CN204825551U (en) | 2015-12-02 |
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| CN201520619654.2U Active CN204825551U (en) | 2015-08-17 | 2015-08-17 | Waterproof crack control bituminous paving structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217562A (en) * | 2017-07-21 | 2017-09-29 | 江苏燕宁新材料科技发展有限公司 | A kind of crack resistance type thin overlay |
| CN107476164A (en) * | 2017-09-21 | 2017-12-15 | 南京林业大学 | Embedded ultra-thin wearing layer and its construction method for road upper layer |
| CN109024313A (en) * | 2018-08-20 | 2018-12-18 | 中水电第十工程局（郑州）有限公司 | A kind of lossless Concrete Paving Layer of Bridge Floor crack treatment construction method |
| CN113277812A (en) * | 2021-05-06 | 2021-08-20 | 新疆维吾尔自治区交通规划勘察设计研究院 | Rock salt base layer mixture, preparation method and application |
| CN113789691A (en) * | 2021-08-20 | 2021-12-14 | 山东高速基础设施建设有限公司 | Stress-compensated high-toughness asphalt pavement and construction method |
| CN114855539A (en) * | 2022-05-27 | 2022-08-05 | 广西北投交通养护科技集团有限公司 | Method for additionally paving asphalt pavement on old cement concrete pavement |
-
2015
- 2015-08-17 CN CN201520619654.2U patent/CN204825551U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217562A (en) * | 2017-07-21 | 2017-09-29 | 江苏燕宁新材料科技发展有限公司 | A kind of crack resistance type thin overlay |
| CN107476164A (en) * | 2017-09-21 | 2017-12-15 | 南京林业大学 | Embedded ultra-thin wearing layer and its construction method for road upper layer |
| CN109024313A (en) * | 2018-08-20 | 2018-12-18 | 中水电第十工程局（郑州）有限公司 | A kind of lossless Concrete Paving Layer of Bridge Floor crack treatment construction method |
| CN113277812A (en) * | 2021-05-06 | 2021-08-20 | 新疆维吾尔自治区交通规划勘察设计研究院 | Rock salt base layer mixture, preparation method and application |
| CN113789691A (en) * | 2021-08-20 | 2021-12-14 | 山东高速基础设施建设有限公司 | Stress-compensated high-toughness asphalt pavement and construction method |
| CN113789691B (en) * | 2021-08-20 | 2024-04-12 | 山东高速基础设施建设有限公司 | Stress compensation high-toughness asphalt pavement and construction method |
| CN114855539A (en) * | 2022-05-27 | 2022-08-05 | 广西北投交通养护科技集团有限公司 | Method for additionally paving asphalt pavement on old cement concrete pavement |
| CN114855539B (en) * | 2022-05-27 | 2023-09-08 | 广西北投交通养护科技集团有限公司 | Method for additionally paving asphalt pavement on old cement concrete pavement |
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