CN101982610A - Hot-distribution rubber bituminous pavement and construction method thereof - Google Patents
Hot-distribution rubber bituminous pavement and construction method thereof Download PDFInfo
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- CN101982610A CN101982610A CN2010105319585A CN201010531958A CN101982610A CN 101982610 A CN101982610 A CN 101982610A CN 2010105319585 A CN2010105319585 A CN 2010105319585A CN 201010531958 A CN201010531958 A CN 201010531958A CN 101982610 A CN101982610 A CN 101982610A
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000009826 distribution Methods 0.000 title claims abstract description 10
- 239000010426 asphalt Substances 0.000 claims abstract description 150
- 239000010410 layer Substances 0.000 claims abstract description 71
- 239000004575 stone Substances 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 6
- 230000035515 penetration Effects 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 65
- 239000000843 powder Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 10
- 238000009490 roller compaction Methods 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Road Paving Structures (AREA)
Abstract
The invention discloses hot-distribution rubber bituminous pavement and a construction method thereof. The construction method comprises the following steps: 1, cleaning a lower bearing layer; 2, preparing rubber asphalt; 3, distributing the rubber asphalt, namely, uniformly distributing a rubber asphalt layer on the lower bearing layer, wherein the distribution amount of the rubber asphalt is 2.2 to 2.6 kg/m<2>, and the distribution temperature is 180 to 190 DEG C; 4, distributing broken stone with an amount which is 60 to 70 percent based on the distribution area of the rubber asphalt, wherein the distribution temperature of the broken stone is not lower than 80 DEG C; and 5, rolling and forming, namely, rolling and forming a rubber asphalt waterproof adhesive layer by a rubber-tire pavement roller following a broken stone distribution vehicle, wherein the rubber-wire pavement roller rolls the pavement once to twice back and forth. The construction method of the invention can enhance the inter-layer adhesive performance, prevent water penetration, effectively absorb and eliminate inter-layer stress and reduce reflection cracks caused by the conventional bituminous pavement, and can be applied to the projects of building and rebuilding bituminous pavement, pavement of bituminous concrete bridge floor, bituminous overlaying of cement concrete pavement and the like.
Description
Technical field
The present invention relates to the asphalt pavement construction field, particularly a kind of rubber-asphalt waterproof tack coat and job practices thereof.
Background technology
Hot splashing rubber-asphalt waterproof tack coat is a kind of after spraying pitch class binder, spills the rubble of the certain particle diameter of cloth immediately, the thin layer that forms through rolling.The main effect of rubber-asphalt waterproof tack coat is the confining surface fine cracks, stops the water intrusion road surface, damages basic unit and roadbed.
Rubber asphalt is a kind of structurally waterproof, binding material of function admirable, and the functional layer that can be used as waterproof, bonding, stress absorption is used in the asphalt pavement structural layer.The rubber-asphalt waterproof tack coat is brought into use in the eighties of last century middle nineteen sixties, is widely used in engineerings such as road surface performance recovery, stress absorbing layer, road surface and bridge deck water-proof by countries such as the U.S., South Africa and Australia with its good functional performance.
In the construction technology of existing rubber-asphalt waterproof tack coat, water-proof bond material spills cloth and premixing rubble, and to spill cloth be the twice master operations.Since rubber asphalt and rubble spill Bu Wendu, to spill technological parameter such as cloth amount restive, shear strength, the anti-fatigue ability of rubber asphalt stress absorbing layer are a greater impact, construction quality is difficult to guarantee.
In the Modern Transportation Technology of 2006 the 3rd phases " application of rubber asphalt in cement concrete pavement is transformed " disclosed a kind of job practices of rubber-asphalt waterproof tack coat.The cloth amount of spilling of rubber asphalt is 2.3kg/m in this method
2, for the basalt of 9.5～13.2mm, the cloth amount of spilling of rubble is 16kg/m
2, what this method did not disclose rubber asphalt and rubble spills important technical parameters such as Bu Wendu.
Summary of the invention
The purpose of this invention is to provide a kind of hot splashing rubber-asphalt waterproof tack coat and job practices thereof, shear strength, the anti-fatigue ability that solve existing rubber-asphalt waterproof tack coat are bad, the technical problem that construction quality is difficult to guarantee.
For achieving the above object, the present invention adopts following technical scheme:
This hot splashing Rubber-Asphalt Pavement, lay by sub-layer, rubber-asphalt waterproof tack coat and surface course from bottom to top and form, it is characterized in that: described rubber-asphalt waterproof tack coat is by spilling the rubber asphalt that is distributed on the sub-layer and evenly spill the rubble that is distributed on the rubber asphalt layer synchronously through roller-compaction, and the cloth amount of spilling of described rubber asphalt is 2.2～2.6 kg/m
2The cloth amount of spilling of described rubble be rubber asphalt spill cloth area 60～70%.
Lay one deck leveling layer on the described sub-layer, leveling layer is between sub-layer and rubber-asphalt waterproof tack coat.
Described sub-layer is old road surfaces or cement concrete bridge deck or road surface or bituminous concrete bridge floor or road surface, or semi-rigid type base.
Rubber powder in the described rubber asphalt is 30～40 purpose waste rubber tyre powders, and the outer volume of waste rubber tyre powder is 20～25%; Matrix pitch in the rubber asphalt is that needle penetration is not more than 90 90# pitch or 70# pitch, and the rubble in the rubber asphalt is that spilling before the cloth with bitumen aggregate ratio is the premixing rubble that 0.5% pitch carries out premixing.
It is 16～19mm that the particle diameter of described rubble is layed under the semi-rigid type base surface condition at the rubber-asphalt waterproof tack coat, the particle diameter of described rubble is 1/3～1/2 of a surface layer thickness when the rubber-asphalt waterproof tack coat is layed in situation under the surface course, rubble is the limestone building stones of single particle size, and the rubble content that exceeds particle size range is less than 10%.
Described rubber-asphalt waterproof tack coat is when the semi-rigid type base surface, and rubber asphalt wherein spills the cloth amount and spills the cloth amount greater than the rubber asphalt in the surface course.
The job practices of this hot splashing rubber-asphalt waterproof tack coat, construction sequence is as follows:
Step 5, roller-compaction, immediately following broken stone distributor, with rubber-asphalt waterproof tack coat roller-compaction, pneumatic-tired rollers roll 1～2 time back and forth with pneumatic-tired rollers;
Step 6 is laid surface course on the rubber-asphalt waterproof tack coat.
After the described step 1 sub-layer cleaning, on sub-layer, lay one deck leveling layer earlier, on leveling layer, carry out the construction of subsequent step again.
The rubber powder that is adopted when rubber asphalt prepares in the described step 2 is 30～40 purpose waste rubber tyre powders, and the outer volume of waste rubber tyre powder is 20～25%; The matrix pitch that is adopted is that needle penetration is not more than 90 90# pitch or 70# pitch, before described rubble spills cloth, rubble is carried out premixing with plain asphalt, and bitumen aggregate ratio is 0.5%.
Described step 3 rubber asphalt spills mode for cloth, and to be that shower nozzle by distribution vehicle spills into the rubber asphalt that two fan-shaped, adjacent shower nozzles spill cloth overlapped, and the cloth amount of spilling after overlapping is the standard consumption of design.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention in the construction of bituminous waterproofing tack coat with rubber asphalt spill Bu Wendu be controlled at 180 spend to 190 the degree, spill the cloth amount and be controlled at 2.2～2.6 kg/m
2The cloth amount of spilling of rubble is 60～70% of full shop, and the Bu Wendu that spills of rubble is not less than 80 ℃.The present invention all is different from existing technology at the important technical parameter that committed step adopted.Adopt job practices of the present invention, adhesive property and prevent that moisture from entering between enhancement layer better, and can more effectively absorb and subdue inter-laminar stress, play the effect of stress absorption, delay the reflection crack that the protobitumen road surface produces.Rubber asphalt stress absorbing layer of the present invention is arranged on old road surfaces or different structure bed boundary,, can reduces the generation of pavement disease as stress absorbing layer and water-proof tack coat.Use rubber asphalt stress absorbing layer of the present invention, from the thickness of bearing capacity of pavement structure and all right attenuate road structure of antireflection crack angle.The pathway interview is tested and shown: rubber asphalt stress absorbing layer of the present invention all does very well than the stress absorbing layer of plain asphalt and polymer modified asphalt, and is also more economical, is more suitable for heavy traffic, can reach more than 15 years in the delayed reflex crack.
Job practices of the present invention has following advantage:
1, by spill cloth one deck rubber asphalt in basic unit, can seal the road surfaces fine cracks, stop the water intrusion road surface.
2, spill the cloth rubble protection to pitch is provided, also provide the platform that travels to driving vehicle.Determine the particle diameter of rubble according to the pitch sprinkling amount, rubble can not completely be spread simultaneously.
3, in old road resurfacing or road structure when changing, thick asphalt membrane plays the effect that absorbs stress, can delay the reflection crack that the protobitumen road surface produces.
4, can adopt mechanized construction, fast, the easy to control the quality system of speed of application.
5, when water-proof tack coat is constructed with upper layer, form an integral body with asphalt surface course on it, soft layer can not appear, with the adhesion strength height of lower floor, strengthened the interlayer combination, the generation of the phenomenon that prevents to peel.
6, because the high resiliency performance and the height of rubber asphalt spill cloth dosage, the rubber-asphalt waterproof tack coat has splendid rubble adhesion stress.Because rubber asphalt elasticity is recovered, and stress absorption is effective, rubber asphalt viscosity height can not produce the bellding problem simultaneously when adopting rubber asphalt.
7, the rubber-asphalt waterproof tack coat is arranged on the surface course bottom surface; anti-sealing enters in the asphalt surface course, bottom and basic unit; to greatest extent asphalt pavement structure is protected; can significantly reduce maintenance costs; prolong service life of road surface, have important project realistic meaning and economic benefit.
The rubber-asphalt waterproof tack coat is arranged on old road surfaces or different structure bed boundary,, can reduces the generation of pavement disease as stress absorbing layer and water-proof tack coat.The rubber asphalt stress absorbing layer is used on external research surface, from bearing capacity of pavement structure and antireflection crack angle can the attenuate road structure thickness.
The present invention can be widely used in flexible pavement newly-built with engineerings such as reconstruction, bituminous concrete deck paving, the overlay of cement concrete pavement pitch.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram that the rubber-asphalt waterproof tack coat is layed in old road surfaces embodiment one.
Fig. 2 is the schematic diagram that the rubber-asphalt waterproof tack coat is layed in old road surfaces embodiment two, is equipped with leveling layer.
Fig. 3 is that rubber asphalt spills the mode for cloth schematic diagram.
Reference numeral: 1-sub-layer, 2-rubber-asphalt waterproof tack coat, 2.1-rubber asphalt layer, 2.2-rubble, 3-surface course, 4-leveling layer.
The specific embodiment
Embodiment one is referring to shown in Figure 1, this hot splashing Rubber-Asphalt Pavement, lay by sub-layer 1, rubber-asphalt waterproof tack coat 2 and surface course 3 from bottom to top and form, it is characterized in that: described rubber-asphalt waterproof tack coat 2 is by spilling the rubber asphalt 2.1 that is distributed on the sub-layer and evenly spill the rubble 2.2 that is distributed on the rubber asphalt layer synchronously through roller-compaction, and the cloth amount of spilling of described rubber asphalt is 2.2～2.6 kg/m
2The cloth amount of spilling of described rubble be rubber asphalt spill cloth area 60～70%.
Embodiment two lays one deck leveling layer referring to shown in Figure 2 on the sub-layer of hot splashing Rubber-Asphalt Pavement, leveling layer is between sub-layer and rubber-asphalt waterproof tack coat.
Described sub-layer 1 is old road surfaces or cement concrete bridge deck or road surface or bituminous concrete bridge floor or road surface, or semi-rigid type base.
It is 16～19mm that the particle diameter of described rubble is layed under the semi-rigid type base surface condition at rubber-asphalt waterproof tack coat 2, the particle diameter of described rubble is 1/3～1/2 of a surface layer thickness when rubber-asphalt waterproof tack coat 2 is layed in situation under the surface course, rubble is the limestone building stones of single particle size, and the rubble content that exceeds particle size range is less than 10%.
Described rubber-asphalt waterproof tack coat 2 is when the semi-rigid type base surface, and rubber asphalt wherein spills the cloth amount and spills the cloth amount greater than the rubber asphalt in the surface course 3.Rubber asphalt certainly substitutes with modified bitumen.
The job practices of this hot splashing rubber-asphalt waterproof tack coat, construction sequence is as follows:
Step 5, roller-compaction, immediately following broken stone distributor, with rubber-asphalt waterproof tack coat 2 roller-compactions, pneumatic-tired rollers roll 1～2 time back and forth with pneumatic-tired rollers;
Step 6 is laid surface course 3 on rubber-asphalt waterproof tack coat 2.
Referring to shown in Figure 1, rubber-asphalt waterproof tack coat 2 can be laid immediately on the sub-layer surface, sub-layer is old road surfaces, and then directly lays surface course 3 on rubber-asphalt waterproof tack coat 2.
Referring to shown in Figure 2, after the sub-layer cleaning, on sub-layer, lay one deck leveling layer 4 earlier, on leveling layer, carry out the construction of subsequent step again.
Referring to shown in Figure 3, when rubber asphalt spilt cloth, it is overlapped that the shower nozzle of pitch by distribution vehicle spills into the pitch that two fan-shaped, adjacent shower nozzles spill cloth, and the distributing asphalt amount after overlapping is the standard consumption of design.A, b are two adjacent shower nozzles among the figure, and the pitch that spills cloth of two shower nozzles is overlapped, and overlapping width is d0, and the pitch sprinkling amount in this width range is the cloth amount of spilling of designing requirement.Suppose that each shower nozzle pitch sprinkling amount is identical, then the underlapped interior distributing asphalt of d width range of Wai Ce b shower nozzle only is half of designing requirement.Therefore, when for the second time spilling cloth, vertically should with the overlapping width d of the pitch that last time spilt cloth.Width d is generally the spacing of two adjacent shower nozzles.Therefore, when landing edge is constructed, guarantee that outermost shower nozzle and joint edges line are on the same line.
Claims (10)
1. hot splashing Rubber-Asphalt Pavement, lay by sub-layer (1), rubber-asphalt waterproof tack coat (2) and surface course (3) from bottom to top and form, it is characterized in that: described rubber-asphalt waterproof tack coat (2) is by spilling the rubber asphalt (2.1) that is distributed on the sub-layer and evenly spill the rubble (2.2) that is distributed on the rubber asphalt layer synchronously through roller-compaction, and the cloth amount of spilling of described rubber asphalt is 2.2～2.6 kg/m
2The cloth amount of spilling of described rubble be rubber asphalt spill cloth area 60～70%.
2. hot splashing rubber-asphalt waterproof tack coat according to claim 1 is characterized in that: described sub-layer (1) is gone up and is laid one deck leveling layer (4), and leveling layer (4) is positioned between sub-layer (1) and the rubber-asphalt waterproof tack coat (2).
3. hot splashing rubber-asphalt waterproof tack coat according to claim 1 and 2, it is characterized in that: described sub-layer (1) is old road surfaces or cement concrete bridge deck or road surface or bituminous concrete bridge floor or road surface, or semi-rigid type base.
4. hot splashing rubber-asphalt waterproof tack coat according to claim 3 is characterized in that: the rubber powder in the described rubber asphalt is 30～40 purpose waste rubber tyre powders, and the outer volume of waste rubber tyre powder is 20～25%; Matrix pitch in the rubber asphalt is that needle penetration is not more than 90 90# pitch or 70# pitch, and the rubble in the rubber asphalt is that spilling before the cloth with bitumen aggregate ratio is the premixing rubble that 0.5% pitch carries out premixing.
5. hot splashing rubber-asphalt waterproof tack coat according to claim 3, it is characterized in that: it is 16～19mm that the particle diameter of described rubble is layed under the semi-rigid type base surface condition at rubber-asphalt waterproof tack coat (2), the particle diameter of described rubble is 1/3～1/2 of a surface layer thickness when rubber-asphalt waterproof tack coat (2) is layed in situation under the surface course, rubble is the limestone building stones of single particle size, and the rubble content that exceeds particle size range is less than 10%.
6. hot splashing rubber-asphalt waterproof tack coat according to claim 3, it is characterized in that: described rubber-asphalt waterproof tack coat (2) is when the semi-rigid type base surface, and rubber asphalt wherein spills the cloth amount and spills the cloth amount greater than the rubber asphalt in the surface course (3).
7. job practices as hot splashing rubber-asphalt waterproof tack coat as described in any one of the claim 1～6 is characterized in that construction sequence is as follows:
Step 1, cleaning sub-layer (1);
Step 2, the rubber asphalt preparation;
Step 3, rubber asphalt spills cloth, evenly spills cloth rubber asphalt layer (2.1) on sub-layer (1), and the cloth amount of spilling of rubber asphalt is 2.2～2.6 kg/m
2, spilling Bu Wendu is 180～190 ℃;
Step 4, rubble spills cloth, and rubble (2.2) is spilt cloth uniformly on rubber asphalt layer (2.1), the cloth amount of spilling of rubble be rubber asphalt spill cloth area 60～70%, the Bu Wendu that spills of rubble is not less than 80 ℃;
Step 5, roller-compaction, immediately following broken stone distributor, with rubber-asphalt waterproof tack coat (2) roller-compaction, pneumatic-tired rollers roll 1～2 time back and forth with pneumatic-tired rollers;
Step 6 is laid surface course (3) on rubber-asphalt waterproof tack coat (2).
8. the job practices of hot splashing rubber-asphalt waterproof tack coat according to claim 7 is characterized in that: after the described step 1 sub-layer cleaning, lay one deck leveling layer (4) earlier on sub-layer, carry out the construction of subsequent step again on leveling layer.
9. the job practices of hot splashing rubber-asphalt waterproof tack coat according to claim 7 is characterized in that: the rubber powder that is adopted when rubber asphalt prepares in the described step 2 is 30～40 purpose waste rubber tyre powders, and the outer volume of waste rubber tyre powder is 20～25%; The matrix pitch that is adopted is that needle penetration is not more than 90 90# pitch or 70# pitch, before described rubble spills cloth, rubble is carried out premixing with plain asphalt, and bitumen aggregate ratio is 0.5%.
10. the job practices of hot splashing rubber-asphalt waterproof tack coat according to claim 7, it is characterized in that: it is that shower nozzle by distribution vehicle spills into fan-shaped that described step 3 rubber asphalt spills mode for cloth, the rubber asphalt that two adjacent shower nozzles spill cloth is overlapped, and the cloth amount of spilling after overlapping is the standard consumption of design.
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| CN2010105319585A CN101982610A (en) | 2010-11-04 | 2010-11-04 | Hot-distribution rubber bituminous pavement and construction method thereof |
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| CN102433817A (en) * | 2011-10-15 | 2012-05-02 | 交通运输部公路科学研究所 | Composite waterproof adhesive layer and preparation method thereof |
| CN103215872A (en) * | 2012-12-11 | 2013-07-24 | 王鸽 | Novel stone-exposed road surface construction method |
| CN103224351A (en) * | 2013-05-13 | 2013-07-31 | 东南大学 | Anti-fatigue type cement stabilized gravel |
| CN103469713A (en) * | 2013-09-25 | 2013-12-25 | 广西金盟工程有限公司 | Wearing layer for preventive maintenance technology and construction method of wearing layer |
| CN103603252A (en) * | 2013-10-28 | 2014-02-26 | 尚诚德 | Cement road bed water-tightness method |
| CN104060513A (en) * | 2014-06-27 | 2014-09-24 | 南京同安道路工程有限公司 | Modified asphalt graded broken stone stress absorption waterproof layer and manufacturing method thereof |
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| CN102433817A (en) * | 2011-10-15 | 2012-05-02 | 交通运输部公路科学研究所 | Composite waterproof adhesive layer and preparation method thereof |
| CN102433817B (en) * | 2011-10-15 | 2014-07-23 | 交通运输部公路科学研究所 | Composite waterproof adhesive layer and preparation method thereof |
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Application publication date: 20110302 |