CN117513105A - Construction method of semi-flexible asphalt pavement - Google Patents
Construction method of semi-flexible asphalt pavement Download PDFInfo
- Publication number
- CN117513105A CN117513105A CN202311595298.0A CN202311595298A CN117513105A CN 117513105 A CN117513105 A CN 117513105A CN 202311595298 A CN202311595298 A CN 202311595298A CN 117513105 A CN117513105 A CN 117513105A
- Authority
- CN
- China
- Prior art keywords
- asphalt
- asphalt pavement
- mixture
- pavement
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 97
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 41
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 31
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/488—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with rollers for consolidating or finishing combined with tamping, vibrating, pressing or smoothing consolidation or finishing means
-
- 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
- E01C11/00—Details of pavings
-
- 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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
-
- 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
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of a semi-flexible asphalt pavement, which relates to the technical field of pavement construction and comprises the following steps: the asphalt mixture is high-viscosity asphalt, and the grading is broken grading; paving and rolling the asphalt mixture in sequence to obtain a mixture asphalt pavement with the porosity of 25% -30%; and then pouring the quick repair mortar into the pores of the mixed asphalt pavement to obtain the semi-flexible asphalt pavement. According to the invention, the rapid repair mortar is poured into the high-porosity mixture asphalt pavement, so that the thermal stability and mechanical structure stability of asphalt can be improved, the bearing capacity is greatly improved, and the purpose of prolonging the service life of the pavement is achieved. Meanwhile, the semi-flexible asphalt pavement has the functions of water drainage and noise reduction, and the safety and the comfort of running are improved.
Description
Technical Field
The invention relates to the technical field of pavement construction, in particular to a construction method of a semi-flexible asphalt pavement.
Background
Since asphalt concrete is applied to paving a road surface, the travelling comfort of the road is greatly improved, and various performance indexes of domestic asphalt are improved rapidly along with the progress of petrochemical technology in China, and basically have no technical difference with foreign asphalt.
The running condition of the road in China is different from that of the road in foreign countries, and the road mainly shows that the number of the overloaded vehicles is large. Particularly in economically developed areas, the load of roads is high, the influence on asphalt pavement is large, and rutting phenomenon often occurs. Especially in summer, the temperature of the asphalt pavement is high, the thermal stability of asphalt is weakened to some extent, the influence on the asphalt pavement is larger, and the phenomena of pushing and hugging often occur. These problems occur, and a new study is being made for the maintenance of roads.
To solve the thermal stability problem of asphalt pavement, engineers have devised a number of solutions, one of which is typically to incorporate special epoxy into asphalt and pave with epoxy asphalt. The rigidity of the asphalt after the epoxy is added is increased, and the thermal stability is enhanced. However, the cost of paving the epoxy asphalt is high, the rigidity is too high, the coordination with the steel bridge deck is not good, and the phenomena of cracking and chipping are easy to occur, so that the pavement of the steel bridge deck is damaged.
Disclosure of Invention
The invention aims to provide a construction method of a semi-flexible asphalt pavement, which solves the problems in the prior art, can improve the thermal stability and mechanical structure stability of asphalt, greatly improves the bearing capacity and achieves the purpose of prolonging the service life of the pavement.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a construction method of a semi-flexible asphalt pavement, which comprises the following steps:
1) Paving and rolling the asphalt mixture in sequence to obtain a mixture asphalt pavement with the porosity of 25% -30%;
2) The asphalt mixture is high-viscosity asphalt, and the grading is a broken-grade aggregate;
3) And pouring the quick repair mortar into the pores of the mixture asphalt pavement to obtain the semi-flexible asphalt pavement.
Preferably, before step 2), the base pavement is cleaned, and the high-viscosity modified asphalt is paved, and then the asphalt mixture is paved on the high-viscosity modified asphalt.
Preferably, when the mixture asphalt pavement is cooled to below 60 ℃, the quick repair mortar is poured.
Preferably, before step 3), the base pavement is cleaned, high-viscosity modified asphalt is paved, and each area is sequentially filled with quick repair mortar.
Preferably, after the quick repair mortar is poured, the vibratory roller is utilized to vibrate the mixed material asphalt pavement.
Preferably, after the quick repair mortar is initially set, the quick repair mortar adhered to the surface of the mixture asphalt pavement is cleaned.
Preferably, the quick repair mortar is mixed with black dye, so that the quick repair mortar is modulated to be black same as the asphalt pavement of the mixture.
Preferably, the thickness of the mixture asphalt pavement is 6 cm-12 cm.
Compared with the prior art, the invention has the following technical effects:
according to the invention, the rapid repair mortar is poured into the high-porosity mixture asphalt pavement, so that the thermal stability and mechanical structure stability of asphalt can be improved, the bearing capacity is greatly improved, and the purpose of prolonging the service life of the pavement is achieved. Meanwhile, the semi-flexible asphalt pavement has the functions of water drainage and noise reduction, and the safety and the comfort of running are improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a construction method of a semi-flexible asphalt pavement, which solves the problems existing in the prior art, can improve the thermal stability and mechanical structure stability of asphalt, greatly improves the bearing capacity and achieves the purpose of prolonging the service life of the pavement.
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof.
The embodiment provides a construction method of a semi-flexible asphalt pavement, which comprises the following steps:
1. cleaning the bottom
And cleaning up the base pavement of the asphalt mixture to be paved. If the road surface is a newly built cement road surface or a steel bridge surface, the road surface is treated by sand blasting and shot blasting, and particularly, places with pollution are cleaned with emphasis, so that the road surface of a base layer is ensured to be clean.
2. Adhesive layer construction
The high-viscosity modified asphalt is paved on the base pavement, and is used as a waterproof bonding layer, so that the asphalt mixture and the base pavement are well bonded, and the conditions of pushing and wrapping of the asphalt mixture are prevented.
3. Asphalt mixture paving
And (3) generating an asphalt mixture by using high-viscosity asphalt and broken-grade matched aggregate, and sequentially paving and rolling the asphalt mixture to obtain a mixture asphalt pavement with the porosity of 25-30%, wherein the height of the mixture asphalt pavement is 6-12 cm. Wherein, the porosity of the mixture asphalt pavement is controlled by the grading of the mixture.
4. Grouting
In this embodiment, the grouting amount required for each square meter of the mixture asphalt pavement is calculated according to the grouting thickness and the porosity of the mixture asphalt pavement. And marking the mixture asphalt pavement by combining the quantity of the quick repair mortar obtained by each stirring, and dividing the mixture asphalt pavement into a plurality of areas. In this example, the quick repair mortar was made black by adding a black dye. When the temperature of the mixture asphalt pavement is reduced to below 60 ℃, grouting is sequentially carried out on each area, the grouting is uniformly distributed in a manual mode, and meanwhile, the vibration road surface of the vibration road roller is utilized to help to quickly repair the mortar to quickly infiltrate into the mixture asphalt pavement.
5. Surface cleaning
Because during grouting, a part of the rapid repair mortar can be adhered to the surface of asphalt, and the solidified mortar has a certain influence on the friction coefficient of the road surface, and relates to the problem of driving safety. And after the quick repair mortar is initially set, cleaning the quick repair mortar adhered to the surface of the mixed asphalt pavement by using a sweeper in time, so that the pavement recovers the designed friction coefficient. Because the quick repair mortar is prepared into black, even if a small amount of residues exist, the appearance of the pavement is not affected.
According to the embodiment, the rapid repair mortar is poured into the high-porosity mixture asphalt pavement, so that the thermal stability and mechanical structure stability of asphalt can be improved, the bearing capacity is greatly improved, and the purpose of prolonging the service life of the pavement is achieved. Meanwhile, the semi-flexible asphalt pavement obtained by the embodiment also has the functions of water drainage and noise reduction, and the safety and the comfort of running are improved. In addition, the strength is obviously improved due to the fact that the quick repair mortar is poured into the semi-flexible asphalt pavement of the embodiment, and compared with a traditional asphalt pavement, the paving thickness can be reduced.
The semi-flexible asphalt pavement in the embodiment is suitable for occasions such as heavy traffic roads, intersections where ruts are easy to occur, airport roads, steel bridge pavement and the like due to the excellent performance of the semi-flexible asphalt pavement. When the mortar is applied to airport roads, the porosity of the drainage asphalt mixture can be properly improved due to larger impact force when an airplane falls, so that the filling amount of the quick repair mortar is increased. When the repairing agent is applied to paving a steel bridge deck, the repairing agent can play a role in rapid maintenance and repair.
The adaptation to the actual need is within the scope of the invention.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The construction method of the semi-flexible asphalt pavement is characterized by comprising the following steps of:
1) The asphalt mixture is high-viscosity asphalt, and the grading is broken grading;
2) Paving and rolling the asphalt mixture in sequence to obtain a mixture asphalt pavement with the porosity of 25% -30%;
3) And pouring the quick repair mortar into the pores of the mixture asphalt pavement to obtain the semi-flexible asphalt pavement.
2. The construction method of a semi-flexible asphalt pavement according to claim 1, wherein the base pavement is cleaned and the high-viscosity modified asphalt is laid before the step 2), and then the asphalt mixture is laid on the high-viscosity modified asphalt.
3. The construction method of a semi-flexible asphalt pavement according to claim 1, wherein the rapid repair mortar is poured when the mixture asphalt pavement is cooled to 60 ℃ or lower.
4. A construction method of a semi-flexible asphalt pavement according to claim 3, wherein before step 3), the base pavement is cleaned, and high-viscosity modified asphalt is laid, and each area is filled with quick repair mortar in sequence.
5. The construction method of a semi-flexible asphalt pavement according to claim 4, wherein the mixture asphalt pavement is vibrated by a vibratory roller after the rapid repair mortar is poured.
6. The construction method of a semi-flexible asphalt pavement according to claim 6, wherein the rapid repair mortar adhered to the surface of the mixed asphalt pavement is cleaned after the rapid repair mortar is initially set.
7. The method of claim 7, wherein the quick repair mortar is mixed with a black dye, and the quick repair mortar is modulated to have the same black color as the mixture asphalt pavement.
8. The construction method of a semi-flexible asphalt pavement according to claim 1, wherein the thickness of the mixture asphalt pavement is 6 cm-12 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311595298.0A CN117513105A (en) | 2023-11-28 | 2023-11-28 | Construction method of semi-flexible asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311595298.0A CN117513105A (en) | 2023-11-28 | 2023-11-28 | Construction method of semi-flexible asphalt pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117513105A true CN117513105A (en) | 2024-02-06 |
Family
ID=89743558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311595298.0A Pending CN117513105A (en) | 2023-11-28 | 2023-11-28 | Construction method of semi-flexible asphalt pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513105A (en) |
-
2023
- 2023-11-28 CN CN202311595298.0A patent/CN117513105A/en active Pending
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