CN113718580A - Anti-crack pavement structure and construction method - Google Patents
Anti-crack pavement structure and construction method Download PDFInfo
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- CN113718580A CN113718580A CN202111072132.1A CN202111072132A CN113718580A CN 113718580 A CN113718580 A CN 113718580A CN 202111072132 A CN202111072132 A CN 202111072132A CN 113718580 A CN113718580 A CN 113718580A
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- inorganic binder
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 78
- 239000011230 binding agent Substances 0.000 claims abstract description 73
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 72
- 239000004575 stone Substances 0.000 claims abstract description 47
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 23
- 239000004568 cement Substances 0.000 claims description 18
- 239000010426 asphalt Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 98
- 239000002344 surface layer Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012790 adhesive layer Substances 0.000 description 7
- 239000003350 kerosene Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
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- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides an anti-crack pavement structure and a construction method, and relates to the technical field of municipal engineering. The graded broken stone of the anti-crack pavement structure belongs to a granular body, and solves the problem of reflection cracks of an asphalt concrete surface layer by virtue of the stress dissipation effect of the graded broken stone, namely when cracks are generated on an inorganic binder stabilizing material base layer, the graded broken stone base layer can dissipate the stress because the graded broken stone base layers are arranged on the inorganic binder stabilizing material base layer and the asphalt concrete surface layer, so that the problem of emission cracks of the inorganic binder stabilizing material base layer is solved.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to an anti-crack pavement structure and a construction method.
Background
In order to prolong the service life of a pavement structure, the design ideas of 'strong foundation, thin surface and stable soil foundation' are adopted in China for a long time. Based on the economic foundation of China and the current situation of highway engineering construction, the semi-rigid base course represented by cement stabilized macadam has the advantages of good bearing capacity, high stability, strong frost resistance and the like, and can be widely applied to the pavement structures of various grades of roads for a long time. However, semi-rigid substrate materials are brittle and sensitive to changes in humidity and temperature.
The service process is subject to the comprehensive action of factors such as temperature, humidity, load and the like, so that crack diseases are easily generated, further, a reflection crack is formed by expanding towards an asphalt pavement soon after a road is communicated, the service life and service performance of a surface layer are finally influenced, and huge social and economic benefit losses are caused.
Disclosure of Invention
The invention aims to provide an anti-crack pavement structure and a construction method, and aims to solve the technical problem that the existing asphalt pavement is easy to crack.
In a first aspect, the present invention provides an anti-crack pavement structure, including a pavement structure on a roadbed, wherein the pavement structure includes a graded broken stone cushion layer, an inorganic binder stabilizing material base layer, a graded broken stone base layer and an asphalt concrete surface layer from bottom to top.
In an alternative embodiment, the graded macadam foundation layer and the asphalt concrete surface layer are sequentially provided with a kerosene diluted asphalt permeable layer and a modified emulsified asphalt adhesive layer from bottom to top.
In an alternative embodiment, the graded gravel pad has a thickness of 16cm to 20 cm.
In an alternative embodiment, the thickness of the base layer of inorganic binder stabilizing material is from 28cm to 34 cm; the thickness of the graded broken stone base layer is 6cm-10 cm.
In an alternative embodiment, the asphalt concrete overlay has a thickness of 18cm to 26 cm.
In an alternative embodiment, the inorganic binder stabilizing material base layer comprises an upper inorganic binder stabilizing material base layer and a lower inorganic binder stabilizing material base layer; and the thickness of the lower inorganic binder stabilizing material base layer is greater than that of the upper inorganic binder stabilizing material base layer.
In an alternative embodiment, the upper base layer of inorganic binder stabilizing material has a thickness of 10cm to 14cm and the lower base layer of inorganic binder stabilizing material has a thickness of 18cm to 22 cm.
In an alternative embodiment, the pavement structure has a thickness of 74cm to 86 cm.
The graded broken stone of the anti-crack pavement structure belongs to a granular body, and solves the problem of reflection cracks of an asphalt concrete surface layer by virtue of the stress dissipation effect of the graded broken stone, namely when cracks are generated on an inorganic binder stabilizing material base layer, the graded broken stone base layer can dissipate the stress because the graded broken stone base layers are arranged on the inorganic binder stabilizing material base layer and the asphalt concrete surface layer, so that the problem of emission cracks of the inorganic binder stabilizing material base layer is solved.
In a second aspect, the present invention provides a method for constructing an anti-crack pavement structure according to the foregoing embodiments, comprising the following construction steps: step S1, carrying out graded broken stone cushion layer construction on the roadbed;
s2, paving and compacting the inorganic binder stable material base layer, and then spraying cement slurry; after the cement paste is sprayed, continuously constructing, paving and initially pressing an inorganic binder stable material base layer;
and step S3, paving the graded broken stone base layer and compacting.
In an alternative embodiment, in step S3, step S03 is further included before step S3: and (4) sprinkling cement slurry on the base layer of the upper inorganic binder stabilizing material after initial pressing.
The construction method of the anti-crack road surface structure can realize the construction of the anti-crack road surface structure on the roadbed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an anti-crack pavement structure provided in an embodiment of the present invention;
fig. 2 is a flowchart of a construction method for providing an anti-crack pavement structure according to an embodiment of the present invention.
Icon: 100-roadbed; 200-graded broken stone cushion layer; 300-lower inorganic binder stabilizing material base layer; 400-applying an inorganic binder stabilizing material base layer; 500-graded broken stone base; 600-asphalt concrete surface course.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the present invention provides an anti-crack pavement structure including a pavement structure on a roadbed 100, the pavement structure including a graded crushed stone cushion 200, an inorganic binder stabilizing material base layer, a graded crushed stone base layer 500, and an asphalt concrete surface layer 600 in this order from bottom to top.
Paving a graded broken stone cushion layer 200, an inorganic binder stabilizing material base layer, a graded broken stone base layer 500 and an asphalt concrete surface layer 600 on the roadbed 100 in sequence; the inorganic structural material stabilizing material base layer is made of 4% cement stabilizing gravel, is sensitive to humidity and temperature change, and is easily cracked due to comprehensive effects of factors such as temperature, humidity and load in the service process, so that the asphalt concrete surface layer 600 forms a reflection crack.
After the graded broken stone base layer 500 is laid on the inorganic binder stable material base layer, the problem of surface layer reflection cracks can be solved by virtue of the stress dissipation effect of the graded broken stones which belong to the granular bodies; namely, cracks generated on the inorganic binder stabilizing material base layer are dispersed by the graded broken stone base layer 500, so that the cracks can not be reflected to the asphalt concrete surface layer 600; this allows the asphalt concrete overlay 600 to remain intact even if cracks develop in the base layer of inorganic binder stabilizing material.
The anti-crack pavement structure has the advantages that the anti-crack pavement structure can be used for preventing and treating the base layer reflection cracks, the damage of rainfall to the pavement structure is reduced, the phenomenon that accumulated water at the base layer cracks permeates into the roadbed 100 to cause the overall damage of the pavement structure layer is avoided, the effects of improving the durability of the pavement and reducing the pavement maintenance cost are obvious, the overall strength of the anti-crack pavement structure is improved, the anti-crack pavement structure is beneficial to long-term load bearing of the pavement, the long-term service performance of the pavement is further ensured, and the application prospect is wide.
In an alternative embodiment, the graded crushed stone base course 500 and the asphalt concrete surface course 600 are sequentially arranged from bottom to top by a kerosene diluted asphalt permeable layer and a modified emulsified asphalt adhesive layer.
In an alternative embodiment, the graded gravel pad 200 has a thickness of 16cm to 20 cm.
In an alternative embodiment, the thickness of the base layer of inorganic binder stabilizing material is from 28cm to 34 cm; the thickness of the graded broken stone base course 500 is 6cm-10 cm.
In an alternative embodiment, the asphalt concrete overlay 600 has a thickness of 18cm to 26 cm.
The kerosene diluted asphalt permeable layer and the modified emulsified asphalt adhesive layer are sequentially laid on the graded macadam base layer 500, and then the asphalt concrete surface layer 600 is laid on the modified emulsified asphalt adhesive layer.
Spraying a kerosene diluted asphalt permeable layer on the graded macadam foundation 500 to enable the oil of the permeable layer to penetrate into the surface pores of the foundation more deeply and enhance the connection between the foundation and the surface layer; the surface of the base layer is stably consolidated, and the penetration depth of the oil in the penetration layer is ensured, so that the base layer and the penetration layer are well connected.
After the kerosene diluted asphalt permeable layer is sprayed, curing for 7 days, and coating the modified emulsified asphalt adhesive layer; the modified emulsified asphalt adhesive layer improves the adhesive capacity of the graded macadam base layer 500 and the asphalt concrete surface layer 600.
In alternative embodiments, the inorganic binder stabilizing material base layer includes an upper inorganic binder stabilizing material base layer 400 and a lower inorganic binder stabilizing material base layer 300; and the lower inorganic binder stabilizing material base layer 300 has a thickness greater than that of the upper inorganic binder stabilizing material base layer 400.
In an alternative embodiment, the upper inorganic binder stabilizing material base layer 400 has a thickness of 10cm to 14cm and the lower inorganic binder stabilizing material base layer 300 has a thickness of 18cm to 22 cm.
In an alternative embodiment, the pavement structure has a thickness of 74cm to 86 cm.
The inorganic binder stabilizing material base layer is divided into a lower inorganic binder stabilizing material base layer 300 and an upper inorganic binder stabilizing material base layer 400, the thickness of the lower inorganic binder stabilizing material base layer 300 is generally larger than that of the upper inorganic binder stabilizing material base layer 400, the thickness of the lower inorganic binder stabilizing material base layer 300 is 12cm, the thickness of the upper inorganic binder stabilizing material base layer 400 is 8cm, and the upper inorganic binder stabilizing material base layer 400 and the lower inorganic binder stabilizing material base layer 300 are generally formed by stabilizing gravel by 4% of cement.
The overall pavement structure on the roadbed 100 is generally controlled to be 74cm-86cm, that is, the total thickness of the graded broken stone cushion layer 200, the inorganic binder stabilizing material base layer, the graded broken stone base layer 500 and the asphalt concrete surface layer 600 is controlled to be 74cm-86 cm.
The graded broken stone grading range selects the recommended grading G-A-5 of high-speed roads and first-level roads in the technical Specification for constructing road surface base (JTG/TF 20-2015).
The graded broken stone of the anti-crack pavement structure belongs to a granular body, and solves the problem of reflection cracks of the asphalt concrete surface course 600 by virtue of the stress dissipation effect of the graded broken stone, namely when cracks are generated on the inorganic binder stabilizing material base course, the graded broken stone base course 500 can dissipate the stress because the graded broken stone base course 500 is arranged on the inorganic binder stabilizing material base course and the asphalt concrete surface course 600, and further the problem of emission cracks of the inorganic binder stabilizing material base course is solved.
Referring to fig. 2, in a second aspect, the present invention provides a construction method of an anti-crack road surface structure according to the foregoing embodiment, including the following construction steps: step S1, constructing the graded broken stone cushion layer 200 on the roadbed 100;
s2, paving and compacting the inorganic binder stable material base layer 300, and then spraying cement slurry; after the cement paste is sprayed, the inorganic binder stabilizing material base layer 400 is continuously constructed and paved and is initially pressed;
and step S3, paving and compacting the graded broken stone base course 500.
In an alternative embodiment, in step S3, step S03 is further included before step S3: the cement slurry is sprinkled on the initially pressed base layer 400 of the upper inorganic binder stabilizing material.
Constructing a graded broken stone cushion layer 200 on the roadbed 100, wherein the thickness of the graded broken stone cushion layer 200 is 16-20 cm according to the actual use requirement; after the graded broken stone cushion layer 200 is constructed, 20cm of inorganic binder stabilizing material base layer is constructed, generally, the thickness of the lower inorganic binder stabilizing material base layer 300 is 12cm, and the thickness of the upper inorganic binder stabilizing material base layer 400 is 8 cm.
The graded broken stone base course 500 of 8cm is continuously paved on the upper inorganic binder stabilizing material base course 400 and compacted, the problem that the graded broken stone base course 500 with the thickness of 8cm-10cm cannot be compacted is solved, the problem that the thin-layer graded broken stone base course 500 is compacted through continuous paving of the upper inorganic structure material stabilizing material base course and the graded broken stone base course 500 is solved, spraying of a kerosene diluted asphalt permeable layer and coating of a modified emulsified asphalt adhesive layer are carried out on the graded broken stone base course 500, and finally paving of the asphalt concrete surface course 600 is carried out.
After the lower inorganic binder stabilizing material base layer 300 is constructed, paved and compacted, the cement slurry is sprayed, and the cement slurry is pure cement (0.6 Kg/m)2～1.0Kg/m2) Continuously paving 12cm of the upper inorganic binder stabilizing material base layer 400 on the lower inorganic binder stabilizing material base layer 300, and then performing primary pressing; material base for stabilizing inorganic binder after initial pressingOn the layer 400, according to the actual situation, the base layer 400 of the inorganic binder stabilizing material can be continuously sprayed with the cement slurry, or the cement slurry can be optionally not sprayed; a cement slurry is sprayed on the lower inorganic binder stabilizing material base layer 300 in order to closely bond the upper inorganic binder stabilizing material base layer 400 and the lower inorganic binder stabilizing material base layer 300 together.
The construction method of the anti-crack road surface structure provided by the invention can realize the construction of the anti-crack road surface structure on the roadbed 100.
Anti crack road surface structure is simple and convenient, need not increase the main equipment, plays favourable prevention and cure to basic unit's reflection crack, reduces the rainfall to road surface structure's destruction, avoids basic unit's crack department ponding infiltration to get into road bed 100, leads to road surface structure layer bulk damage, is showing improvement road surface durability, reduction road surface maintenance expense effect, has certain improvement through calculating this novel anti crack road surface structure bulk strength.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an anti-crack road surface structure, its characterized in that, is including the road surface structure that is located road bed (100), road surface structure includes from bottom to top in proper order for graded broken stone bed course (200), inorganic binder stabilizing material basic unit, graded broken stone basic unit (500) and asphalt concrete surface course (600).
2. The crack-resistant pavement structure according to claim 1, wherein the graded crushed stone base course (500) and the asphalt concrete surface course (600) are sequentially arranged from bottom to top by a kerosene-diluted asphalt permeable course and a modified emulsified asphalt binder course.
3. Crack-resistant pavement structure according to claim 1, characterized in that the graded crushed stone mat (200) has a thickness of 16-20 cm.
4. The crack-resistant pavement structure of claim 1, wherein the base layer of inorganic binder-stabilizing material has a thickness of 28cm to 34 cm; the thickness of the graded macadam foundation (500) is 6cm-10 cm.
5. Crack-resistant pavement structure according to claim 1, characterized in that the thickness of the bituminous concrete pavement (600) is 18-26 cm.
6. The crack-resistant pavement structure of claim 1, wherein the base layer of inorganic binder stabilizing material comprises an upper base layer of inorganic binder stabilizing material (400) and a lower base layer of inorganic binder stabilizing material (300); and the lower inorganic binder stabilizing material base layer (300) has a thickness greater than the upper inorganic binder stabilizing material base layer (400).
7. The crack-resistant pavement structure according to claim 6, wherein the upper inorganic binder stabilizing material base course (400) has a thickness of 10cm to 14cm, and the lower inorganic binder stabilizing material base course (300) has a thickness of 18cm to 22 cm.
8. The crack-resistant pavement structure of claim 1, wherein the pavement structure has a thickness of 74cm to 86 cm.
9. The method for constructing an anti-crack pavement structure according to claim 6, comprising the following construction steps: step S1, constructing a graded broken stone cushion layer (200) on the roadbed (100);
s2, paving and compacting the inorganic binder stabilizing material base layer (300) and then spraying cement slurry; after the cement paste is sprayed, continuously constructing and paving a base layer (400) made of inorganic binder stabilizing material and carrying out initial pressing;
and step S3, paving the graded broken stone base layer (500) and compacting.
10. The construction method according to claim 9, further comprising, in step S3, step S03 before step S3: and (3) sprinkling cement slurry on the base layer (400) of the inorganic binder stabilizing material after initial pressing.
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| CN202111072132.1A CN113718580A (en) | 2021-09-14 | 2021-09-14 | Anti-crack pavement structure and construction method |
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| CN202111072132.1A CN113718580A (en) | 2021-09-14 | 2021-09-14 | Anti-crack pavement structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933451A (en) * | 2022-05-24 | 2022-08-23 | 东南大学 | Asphalt pavement crack dispersion type base material, design method and road structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201296895Y (en) * | 2008-11-07 | 2009-08-26 | 孟繁宏 | Vertical cracking pavement repair structure |
| CN204849511U (en) * | 2015-07-27 | 2015-12-09 | 福州市规划设计研究院 | Handle road surface overhaul structure that different lane road surfaces road conditions differed greatly |
| RU2603310C1 (en) * | 2015-09-07 | 2016-11-27 | федеральное государственное автономное образовательное учреждение высшего образования "Северо-Кавказский федеральный университет" | Road pavement |
| CN205917559U (en) * | 2016-06-30 | 2017-02-01 | 南京市裕和建设有限公司 | Anti type road surface structure of splitting suitable for semi rigid base course |
| CN111021178A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | Cement-stabilized anti-crack base newly-built pavement structure and construction method and application thereof |
| CN215976685U (en) * | 2021-09-14 | 2022-03-08 | 中交一公局桥隧工程有限公司 | Anti-crack pavement structure |
-
2021
- 2021-09-14 CN CN202111072132.1A patent/CN113718580A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201296895Y (en) * | 2008-11-07 | 2009-08-26 | 孟繁宏 | Vertical cracking pavement repair structure |
| CN204849511U (en) * | 2015-07-27 | 2015-12-09 | 福州市规划设计研究院 | Handle road surface overhaul structure that different lane road surfaces road conditions differed greatly |
| RU2603310C1 (en) * | 2015-09-07 | 2016-11-27 | федеральное государственное автономное образовательное учреждение высшего образования "Северо-Кавказский федеральный университет" | Road pavement |
| CN205917559U (en) * | 2016-06-30 | 2017-02-01 | 南京市裕和建设有限公司 | Anti type road surface structure of splitting suitable for semi rigid base course |
| CN111021178A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | Cement-stabilized anti-crack base newly-built pavement structure and construction method and application thereof |
| CN215976685U (en) * | 2021-09-14 | 2022-03-08 | 中交一公局桥隧工程有限公司 | Anti-crack pavement structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933451A (en) * | 2022-05-24 | 2022-08-23 | 东南大学 | Asphalt pavement crack dispersion type base material, design method and road structure |
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