CN108457179A - Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation - Google Patents
Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation Download PDFInfo
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- CN108457179A CN108457179A CN201810345985.XA CN201810345985A CN108457179A CN 108457179 A CN108457179 A CN 108457179A CN 201810345985 A CN201810345985 A CN 201810345985A CN 108457179 A CN108457179 A CN 108457179A
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- Prior art keywords
- asphalt
- thin
- rubber
- layer
- crushed stone
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- 239000004568 cement Substances 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 10
- 230000009466 transformation Effects 0.000 title claims abstract description 10
- 239000010426 asphalt Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000004575 stone Substances 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000013461 design Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 30
- 239000004567 concrete Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 239000011384 asphalt concrete Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of thin overlay structures for Bridge Surface Paving by Cement transformation.The composite structure that the thin overlay structure is made of the double-layer rubber bitumen macadam seal coat of lower layer and the sand grains formula Ultra-thin asphalt wearing course on upper layer, two layers of mutual embedded squeezing of rubber asphalt crushed stone sealing；The sand grains formula Ultra-thin asphalt nominal maximum particle diameter is 6.7cm, and thickness is not more than 2.0cm.The invention also discloses the construction methods of above-mentioned cover structure, finish-milling plane is carried out to former Bridge Surface Paving by Cement first, milling depth is 5mm, after cleaning up, dispense first layer rubber asphalt crushed stone sealing, rubber tire dispenses second layer rubber asphalt crushed stone sealing after rolling, decking and rolling sand grains formula Ultra-thin asphalt on it after rolling.Compared with prior art, the present invention has that adhesion strength is big, cracking resistance, antiskid performance, and it is small to increase dead load, cheap.
Description
Technical field
The present invention relates to Surfacing Construction technical fields, more particularly to a kind of Bridge Surface Paving by Cement that is used for be transformed
Thin overlay structure and its construction method.
Background technology
The cementing pump vehicle that early stage builds, deck paving generally uses cement concrete, as people are to road
Ride quality requires to step up, and the disadvantage that Bridge Surface Paving by Cement noise is big, road-ability is poor highlights, by old water
It is trend of the times that cement concrete deck paving, which transform asphalt concrete structure (being commonly called as " changing in vain black ") as,.
" changing in vain black " of Bridge Surface Paving by Cement generally uses the cover scheme of direct Paving Bituminous Concrete, but adds
The bituminous concrete that the conventional nominal particle diameter of paving is 13.2mm at least needs to overlay 4cm or more, thicker asphalt concrete structure
Bridge dead load will be dramatically increased, leading to bridge, there are the security risks of structural instability to be therefore badly in need of out during later stage use
The cover structure that send out a kind of ultra-thin is transformed for Bridge Surface Paving by Cement.Existing research shows that ultra-thin bituminous concrete
It is transformed applied to Bridge Surface Paving by Cement, apparent economic benefit and social benefit can be generated, but it is anti-to be also faced with surface
Sliding insufficient, interlaminar bonding loosely, cannot solve the problems, such as reflection crack.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide one kind being used for cement concrete bridge
Face is mated formation the cover structure of transformation, has that adhesion strength is big, cracking resistance, antiskid performance, and it is small to increase dead load, cheap.It is a kind of
Cover structure for Bridge Surface Paving by Cement transformation, which is characterized in that the cover structure is the double-layer rubber of lower layer
The composite structure that bitumen macadam seal coat and the sand grains formula Ultra-thin asphalt wearing course on upper layer are formed, two layers of rubber asphalt are broken
The mutual embedded squeezing of stone sealing；The sand grains formula Ultra-thin asphalt nominal maximum particle diameter is 6.7cm, and thickness is not more than 2.0cm.
Preferably, in the double-layer rubber bitumen macadam seal coat, rubble grain used by underlying rubber bitumen macadam seal coat
Diameter ranging from 10-15mm, rubble dosage are 15 ± 3kg/m2, ballast grain sizes range used by upper rubber bitumen macadam seal coat
For 5-10mm, rubble dosage is 10 ± 2kg/m2。
Preferably, in double-layer rubber bitumen macadam seal coat, two layers of the used pitch of rubber asphalt crushed stone sealing is 180
DEG C when cloth viscosity value be not less than 2.0Pa.s rubber asphalt, lower layer's asphalt content be 2.0 ± 0.3kg/m2, upper layer drip
Green dosage is 1.5 ± 0.3kg/m2。
Preferably, the nominal maximum particle diameter of the sand grains formula Ultra-thin asphalt wearing course is 6.7mm, and paving thickness is
1.5mm, design level is with as follows：
The grading requirement of 1 sand grains formula Ultra-thin asphalt of table
| 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 |
The construction method of thin overlay structure is as described above：Finish-milling is carried out to former Bridge Surface Paving by Cement first
Plane, milling depth is 5mm, after cleaning up, dispenses first layer rubber asphalt crushed stone sealing, rubber tire dispenses second layer rubber after rolling
Glue bitumen macadam seal coat, decking and rolling sand grains formula Ultra-thin asphalt on it after rolling.Compared with prior art, the present invention has
There is following advantageous effect：
(1) interlaminar bonding is strong：Rubber asphalt viscosity is big, big with Deteriorated concrete pavement deck paving adhesion strength.
(2) cracking resistance：Rubber asphalt crushed stone sealing bitumen content is high, and elasticity is good, and Reflective Cracking Resistance is strong.
(3) antiskid：Sand grains formula bituminous concrete improves the construction depth of superficial layer by the targeted design of grading, tool
There are good antiskid performance, especially rainy day that can reduce water mist, moisture film, improve traffic safety.
(4) economical：Entire cover structure thickness is generally 3.0cm, less than the half of conventional cover asphalt concrete structure,
It is apparent to save project cost.
(5) mitigate bridge dead load.Entire cover structure thickness is generally 3.0cm, less than conventional cover bituminous concrete knot
The half of structure, hence it is evident that mitigate transformation axle casing dead load, improve the structure safety of bridge.
Description of the drawings
Fig. 1 is the structural schematic diagram of underlying rubber bitumen macadam seal coat；
Fig. 2 is the structural schematic diagram of double-layer rubber bitumen macadam seal coat；
Fig. 3 is the thin overlay structural schematic diagram of Bridge Surface Paving by Cement transformation.
Specific implementation mode
Technical scheme of the present invention is described in detail below in conjunction with the accompanying drawings：
It is too thick in order to solve bituminous concrete thickness in existing Bridge Surface Paving by Cement modification scheme, it is permanent to increase bridge
Larger deficiency is carried, present invention firstly provides a kind of thin overlay structures of Bridge Surface Paving by Cement transformation, under being
The composite structure that the double-layer rubber bitumen macadam seal coat of layer and the sand grains formula Ultra-thin asphalt wearing course on upper layer are formed, respectively
The mutual embedded squeezing of layer structure, bonding.
Two layers of mutual embedded squeezing of rubber asphalt crushed stone sealing；The sand grains formula Ultra-thin asphalt nominal maximum particle diameter is
6.7cm, thickness are not more than 2.0cm.The invention also discloses the construction methods of above-mentioned cover structure, first to raw water cement concrete
Deck paving carries out finish-milling plane, after cleaning up, dispenses first layer rubber asphalt crushed stone sealing, rubber tire dispenses the second layer after rolling
Rubber asphalt crushed stone sealing, decking and rolling sand grains formula Ultra-thin asphalt on it after rolling.Compared with prior art, of the invention
Big, cracking resistance, antiskid performance with adhesion strength, and increase dead load is small, it is cheap
Superstructure uses nominal particle diameter for the sand grains formula Ultra-thin asphalt of 6.7mm, and the pitch of this small particle is mixed
The solidifying minimum paving thickness of soil is 1.5cm, and passes through special gradation composition so that its antiskid performance is also advantageous over conventional upper layer
Bituminous concrete, grading require as shown in table 1.Consider from economy and reliability perspectives, the thickness of this bituminous concrete
No more than 2cm, preferably 1.5cm.
In order to enable there is good embedded squeezing effect between two layers of rubber asphalt crushed stone sealing, underlying rubber asphalt macadam envelope
Ballast grain sizes ranging from 10-15mm used by layer, rubble dosage are 15 ± 3kg/m2, upper rubber bitumen macadam seal coat adopted
Ballast grain sizes ranging from 5-10mm, rubble dosage are 10 ± 2kg/m2。
In order to enable between rubber asphalt crushed stone sealing, rubber asphalt crushed stone sealing and Deteriorated concrete pavement deck paving it
Between have good bond effect, two layers of the used pitch of rubber asphalt crushed stone sealing is the cloth viscosity at 180 DEG C
Rubber asphalt of the value not less than 2.0Pa.s, lower layer's asphalt content are 2.0 ± 0.3kg/m2, upper layer asphalt content be 1.5 ±
0.3kg/m2。
It, should be first mixed to old cement in the thin overlay structure construction procedure of Bridge Surface Paving by Cement of the present invention transformation
Solidifying soil carries out finish-milling plane, and milling depth is 5mm, then dispenses first layer rubber asphalt crushed stone sealing on the surface cleaned up,
As shown in Figure 1；Then second layer rubber asphalt crushed stone sealing is dispensed on first layer rubber asphalt crushed stone sealing surface, such as Fig. 2 institutes
Show；Finally pave on the second layer rubber asphalt crushed stone sealing sand grains formula Ultra-thin asphalt, each mutual embedded squeezing of interlayer, such as schemes
Shown in 3.
In order to verify the effect of technical solution of the present invention, following comparative testing has been carried out：Cementing pump vehicle drips at present
The green most typical structure of concrete pavement is combined as 4cmAC-13+6cmAC-20, using the combination of this structure and specific real above
The performance for applying thin overlay structure used by example is compared, and comparing result is as shown in the table：
According to comparison data shown in upper table it can be found that the cost of cover layered scheme of the present invention just corresponds to the prior art
About half, and its antiskid, bonding, cracking resistance are greatly improved than the prior art, in addition, being also substantially reduced
Absolute altitude mitigates bridge dead load, as can promoting and applying, it will generate huge economic results in society.
Claims (5)
1. a kind of thin overlay structure for Bridge Surface Paving by Cement transformation, which is characterized in that the thin overlay knot
The combination that structure is made of the double-layer rubber bitumen macadam seal coat of lower layer and the sand grains formula Ultra-thin asphalt wearing course on upper layer
Structure, two layers of mutual embedded squeezing of rubber asphalt crushed stone sealing；The sand grains formula Ultra-thin asphalt nominal maximum particle diameter is
6.7cm, thickness are not more than 2.0cm.
2. as described in claim 1, in double-layer rubber bitumen macadam seal coat, rubble used by underlying rubber bitumen macadam seal coat
Particle size range is 10-15mm, and rubble dosage is 15 ± 3kg/m2, ballast grain sizes model used by upper rubber bitumen macadam seal coat
It encloses for 5-10mm, rubble dosage is 10 ± 2kg/m2。
3. as described in claim 1, in double-layer rubber bitumen macadam seal coat, two layers of the used pitch of rubber asphalt crushed stone sealing is equal
For at 180 DEG C cloth viscosity value be not less than the rubber asphalt of 2.0Pa.s, lower layer's asphalt content is 2.0 ± 0.3kg/m2,
Upper layer asphalt content is 1.5 ± 0.3kg/m2。
4. cover structure as described in claim 1, which is characterized in that the nominal of the sand grains formula Ultra-thin asphalt wearing course
Maximum particle diameter is 6.7mm, and paving thickness 1.5mm, design level is with as follows：
5. the construction method of cover structure as described in any one of Claims 1 to 4, which is characterized in that first to former coagulating cement
Native deck paving carries out finish-milling plane, and milling depth is 5mm, after cleaning up, dispenses first layer rubber asphalt crushed stone sealing, rubber tire
Second layer rubber asphalt crushed stone sealing is dispensed after rolling, decking and rolling sand grains formula Ultra-thin asphalt on it after rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345985.XA CN108457179A (en) | 2018-04-17 | 2018-04-17 | Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345985.XA CN108457179A (en) | 2018-04-17 | 2018-04-17 | Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457179A true CN108457179A (en) | 2018-08-28 |
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ID=63235963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810345985.XA Pending CN108457179A (en) | 2018-04-17 | 2018-04-17 | Thin overlay structure and its construction method for Bridge Surface Paving by Cement transformation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174555A (en) * | 2018-09-28 | 2019-01-11 | 陈萍 | A kind of production equipment of prefabricated volume paving thin overlay |
| CN110374017A (en) * | 2019-06-11 | 2019-10-25 | 广州市市政工程设计研究总院有限公司 | A kind of blackened remodeling method of cement bridge floor |
| CN111705652A (en) * | 2020-06-19 | 2020-09-25 | 北京智华通科技有限公司 | Light long-life bridge deck pavement structure and applicability judging and paving method |
| CN112482165A (en) * | 2020-12-08 | 2021-03-12 | 西安嘉程建设科技有限公司 | Cold-mixing fracture grading anti-crack road maintenance method |
| CN117468294A (en) * | 2023-11-03 | 2024-01-30 | 长沙理工大学 | Rubber particle composite macadam seal layer and construction method thereof |
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| KR101741798B1 (en) * | 2016-04-08 | 2017-05-30 | 곽현숙 | Waterproofing layer structure of concrete bridge deck |
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| 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 |
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Patent Citations (5)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174555A (en) * | 2018-09-28 | 2019-01-11 | 陈萍 | A kind of production equipment of prefabricated volume paving thin overlay |
| CN110374017A (en) * | 2019-06-11 | 2019-10-25 | 广州市市政工程设计研究总院有限公司 | A kind of blackened remodeling method of cement bridge floor |
| CN111705652A (en) * | 2020-06-19 | 2020-09-25 | 北京智华通科技有限公司 | Light long-life bridge deck pavement structure and applicability judging and paving method |
| CN112482165A (en) * | 2020-12-08 | 2021-03-12 | 西安嘉程建设科技有限公司 | Cold-mixing fracture grading anti-crack road maintenance method |
| CN117468294A (en) * | 2023-11-03 | 2024-01-30 | 长沙理工大学 | Rubber particle composite macadam seal layer and construction method thereof |
| CN117468294B (en) * | 2023-11-03 | 2024-06-07 | 长沙理工大学 | Rubber particle composite macadam seal layer and construction method thereof |
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Application publication date: 20180828 |