CN114717903B - Asphalt pavement edge and curb gap filler construction method - Google Patents
Asphalt pavement edge and curb gap filler construction method Download PDFInfo
- Publication number
- CN114717903B CN114717903B CN202210484190.3A CN202210484190A CN114717903B CN 114717903 B CN114717903 B CN 114717903B CN 202210484190 A CN202210484190 A CN 202210484190A CN 114717903 B CN114717903 B CN 114717903B
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- Prior art keywords
- asphalt pavement
- curb
- transition section
- edge
- gap filler
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- 239000010426 asphalt Substances 0.000 title claims abstract description 98
- 239000000945 filler Substances 0.000 title claims abstract description 68
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 230000007704 transition Effects 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 13
- 239000004575 stone Substances 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 12
- 235000019738 Limestone Nutrition 0.000 claims abstract description 10
- 239000006028 limestone Substances 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 239000000839 emulsion Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
-
- 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
-
- 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
- E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method for gap filler between an asphalt pavement edge and a curb stone, and relates to the technical field of road engineering; a 3-10cm transition section is additionally arranged at the edge part of the asphalt pavement and the inner side of the curb; paving an asphalt pavement, finishing construction of an upper layer of the asphalt pavement, installing a curb, pouring and vibrating gap fillers of a transition section, wherein the top surface elevation of the edge of the asphalt pavement is identical to the top surface elevation of the gap fillers of the transition section, the gap fillers of the transition section comprise 0-3mm machine-made sand, limestone mineral powder accounting for 5-15% of the mass, cement accounting for 1-3% of the mass and emulsified asphalt accounting for 10-20% of the mass, the 4.75mm sieve pore passing rate of the 0-3mm machine-made sand is equal to 100%, the 2.36mm sieve pore passing rate is greater than or equal to 85%, and the 0.075mm sieve pore passing rate is less than or equal to 12%; after emulsion breaking of the emulsified asphalt is observed, the modified emulsified asphalt is poured on the surface layer of the gap filler in the transition section.
Description
Technical Field
The invention discloses a method, relates to the technical field of road engineering, and in particular relates to a construction method for gap filler between an asphalt pavement edge and a curb.
Background
In the asphalt pavement construction process, the pavement edge is required to be in close contact with the curb stone, so that water seepage from the edge to the interior of the pavement structure is prevented. When the road roller is constructed at present, if the road stone is constructed firstly, the road roller is extremely easy to damage the road stone or the line type of the road stone in the paving and rolling process of the road surface; if the pavement is constructed firstly and then the curb is constructed, the whole asphalt pavement needs to be poured firstly, and then the edge of the asphalt pavement is cut, so that the asphalt pavement is combined with the curb to play a waterproof role. But asphalt pavement edge is close to the curb part, is not loaded under normal conditions, increases raw material loss and cost by integral pouring, and needs to be cut to the pavement edge, so that the edge is a vertical face, additional working procedures are added, the construction period is not facilitated, and the waterproof effect is also poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a construction method for gap filler between the edge of the asphalt pavement and the curb, which plays a role in transition from asphalt materials to low-strength concrete, and effectively solves the problem of poor rolling compaction of the edge, so that the bonding effect of the edge of the asphalt pavement and the curb is better and the waterproof effect is better.
The specific scheme provided by the invention is as follows:
the invention provides a construction method for gap filler between the edge of an asphalt pavement and a curb, wherein a 3-10cm transition section is additionally arranged between the edge of the asphalt pavement and the inner side of the curb;
paving an asphalt pavement, finishing construction of an upper layer of the asphalt pavement, installing a curb, pouring and vibrating gap fillers of a transition section, wherein the top surface elevation of the edge of the asphalt pavement is identical to the top surface elevation of the gap fillers of the transition section, the gap fillers of the transition section comprise 0-3mm machine-made sand, limestone mineral powder accounting for 5-15% of the mass, cement accounting for 1-3% of the mass and emulsified asphalt accounting for 10-20% of the mass, the 4.75mm sieve pore passing rate of the 0-3mm machine-made sand is equal to 100%, the 2.36mm sieve pore passing rate is greater than or equal to 85%, and the 0.075mm sieve pore passing rate is less than or equal to 12%;
after emulsion breaking of the emulsified asphalt is observed, the modified emulsified asphalt is poured on the surface layer of the gap filler in the transition section.
Further, in the asphalt pavement edge and curb gap filler construction method, a 5-8cm transition section is additionally arranged on the asphalt pavement edge and the inner side of the curb.
Further, in the asphalt pavement edge and curb gap filler construction method, the transition section gap filler comprises 0-3mm machine-made sand, 8-12% limestone mineral powder, 1-2% cement and 10-15% emulsified asphalt.
Further, in the asphalt pavement edge and curb gap filler construction method, the pouring and vibrating of the gap filler at the transition section comprises the following steps:
and pouring and vibrating integrated equipment is adopted to perform pouring and vibrating construction of gap filler in the transition section.
Further, in the asphalt pavement edge and curb gap filler construction method, the surface of the gap filler at the transition section is sprayed with modified emulsified asphalt, which comprises the following steps:
controlling the sprinkling amount to be 1.0-1.2kg/m 2 。
Further, in the asphalt pavement edge and curb gap filler construction method, the asphalt pavement paving method comprises the following steps:
paving a lower layer, a middle layer and an upper layer of the asphalt pavement in sequence.
The invention has the advantages that:
the invention provides a construction method for gap filler between an asphalt pavement edge and a curb, which is characterized in that a transition section is additionally arranged between a pavement structure and the curb, so that contradiction in the construction process can be solved, meanwhile, the effect of transition from an asphalt material to low-strength concrete can be achieved, the problem that the rolling compactness of the edge is poor is effectively solved, the bonding effect of the asphalt pavement edge and the curb is better, and the waterproof effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic top view of an asphalt pavement after construction of gap filler between the edge of the asphalt pavement and a curb by the method of the present invention.
FIG. 2 is a schematic longitudinal sectional view of asphalt pavement edge and curb gap filler after construction by the method of the invention.
Reference numerals: 1 upper layer of asphalt pavement, 2 curbs, 3 gap filler, 4 curbs, 5 middle layer of asphalt pavement, 6 lower layer of asphalt pavement, 7 flexible base layer of asphalt pavement.
Detailed Description
The specific embodiments of the invention described herein are for purposes of illustration only and are not to be construed as limiting the invention in any way. Given the teachings of the present invention, one of ordinary skill in the related art will contemplate any possible modification based on the present invention, and such should be considered to be within the scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanical or electrical, or may be a communication between two members, or may be a direct connection, or may be an indirect connection via an intermediary, where the specific meaning of the terms may be understood by those of ordinary skill in the art. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
The invention provides a construction method for gap filler between the edge of an asphalt pavement and a curb, wherein a 3-10cm transition section is additionally arranged between the edge of the asphalt pavement and the inner side of the curb;
paving an asphalt pavement, finishing construction of an upper layer of the asphalt pavement, installing a curb, pouring and vibrating gap fillers of a transition section, wherein the top surface elevation of the edge of the asphalt pavement is identical to the top surface elevation of the gap fillers of the transition section, the gap fillers of the transition section comprise 0-3mm machine-made sand, limestone mineral powder accounting for 5-15% of the mass, cement accounting for 1-3% of the mass and emulsified asphalt accounting for 10-20% of the mass, the 4.75mm sieve pore passing rate of the 0-3mm machine-made sand is equal to 100%, the 2.36mm sieve pore passing rate is greater than or equal to 85%, and the 0.075mm sieve pore passing rate is less than or equal to 12%;
after emulsion breaking of the emulsified asphalt is observed, the modified emulsified asphalt is poured on the surface layer of the gap filler in the transition section.
The transition section is reserved between the asphalt pavement and the curb in the method, so that the construction of the asphalt pavement and the curb is not affected mutually, the road roller is prevented from damaging the curb or the curb line type in the pavement paving and rolling process, and the edge of the asphalt pavement is not required to be cut. The thickness degree of the machine-made sand with the thickness of 0-3mm is easier to compact during construction, the skeleton effect of the fine-grained asphalt mixture can be ensured to a certain extent, the strength of the mixture is ensured, lime rock mineral powder with the mass ratio of 5-15% in the gap filler at the transition section, cement with the mass ratio of 1-3% and emulsified asphalt with the mass ratio of 10-20% can enable the filler to achieve the compact effect in a smaller or natural stacking state, the lime rock mineral powder, the cement and the emulsified asphalt form thicker asphalt cement on the surfaces of the machine-made sand particles, the cohesive force among the machine-made sand particles is enhanced, the filler forms a whole, meanwhile, the bonding among the filler, the curb and the side surface of the asphalt pavement structure is enhanced, and the asphalt pavement structure, the filler and the curb are connected into a whole, so that the infiltration of moisture at the part is effectively prevented.
In specific applications, in some embodiments of the invention, a 5-8cm transition section can be preferably added between the edge of the asphalt pavement and the inner side of the curb stone 2, a gap between the edge of the asphalt pavement and the inner side of the curb stone 2 is filled by a transition section gap filler 3, and the grading of 0-3mm machine-made sand and limestone mineral powder in the transition section gap filler 3 can refer to the passing rate of 0-3mm machine-made sand and mineral powder sieve pores shown in table 1.
TABLE 1
| Mesh size mm | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Machine-made sand | 100 | 94.1 | 72.1 | 43.1 | 28.5 | 12.4 | 8.0 |
| Mineral powder | 100 | 100 | 100 | 100 | 98.6 | 94.9 | 80.1 |
The mass ratio composition of mineral materials in the gap filler 3 of the transition section can be referred to machine-made sand: limestone mineral powder: cement=87% to 12% to 1%, and the mass ratio of emulsified asphalt to mineral aggregate can be referred to as 11:100, the content of emulsified asphalt residues can be referred to as 52%, the gap filler 3 of the transition section can meet the requirement that the surface water seepage coefficient is smaller than 20ml/min, the sealing effect of the gap between the edge of the asphalt pavement and the curb stone 2 can be better realized,
paving the pavement, installing the curb stone 2 after the construction of the upper surface layer 1 is completed, and then constructing the gap filler 3 at the transition section after the installation of the curb stone 2 is completed, wherein pouring and vibrating the gap filler 3 at the transition section are performed by adopting pouring and vibrating integrated equipment, constructing by adopting automatic construction equipment, reducing the influence of bad construction quality caused by human factors,
and (3) sprinkling modified emulsified asphalt on the surface of the gap filler 3 at the transition section.
Further, in the construction method of the gap filler between the edge of the asphalt pavement and the curb, the thickness of the gap filler 3 at the transition section is the same as the sum of the thicknesses of the upper layer 1, the middle layer 5 and the lower layer 6 of the asphalt pavement, for example, 18cm, the elevation of the top surface is the same as the elevation of the top surface of the pavement, a flexible base layer 7 is paved below the asphalt pavement, and the bottom layer of the curb 2 is padded with a paving curb base 4.
After the gap filler 3 of the transition section is paved, after the emulsified asphalt on the surface is demulsified, the modified emulsified asphalt is sprayed on the surface of the emulsified asphalt sand, and the spraying amount is controlled to be 1.0-1.2kg/m 2 . The modified emulsified asphalt mainly plays a role in further sealing water on the surface, does not have specific requirements on the proportion, and can be selected from the existing modified asphalt.
Further, in other embodiments of the asphalt pavement edge and curb gap filler construction method, the proportion of the mass ratio of each raw material in the transition gap filler 3 can be selected according to actual conditions, so long as the proportion of limestone mineral powder in the invention is 5% -15% of the mass ratio of the transition gap filler 3, the proportion of cement in the transition gap filler 3 is 1% -3%, the proportion of emulsified asphalt in the transition gap filler 3 is 10% -20%, preferably, the proportion of limestone mineral powder in the transition gap filler 3 is 8% -12%, the proportion of cement in the transition gap filler 3 is 1% -2%, the proportion of emulsified asphalt in the transition gap filler 3 is 10% -15%, and the proportion can meet the condition that the surface water seepage coefficient of the transition gap filler 3 is less than 20ml/min when any raw material is the minimum or maximum threshold, so that the sealing effect of the asphalt pavement edge and curb gap 2 can be better achieved.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (5)
1. A construction method for gap filler between the edge of an asphalt pavement and a curb is characterized in that a 3-10cm transition section is additionally arranged between the edge of the asphalt pavement and the inner side of the curb;
paving an asphalt pavement, finishing construction of an upper layer of the asphalt pavement, installing a curb, pouring and vibrating gap fillers of a transition section, wherein the top surface elevation of the edge of the asphalt pavement is identical to the top surface elevation of the gap fillers of the transition section, the gap fillers of the transition section comprise 0-3mm machine-made sand, limestone mineral powder accounting for 5-15% of the mass, cement accounting for 1-3% of the mass and emulsified asphalt accounting for 10-20% of the mass, the 4.75mm sieve pore passing rate of the 0-3mm machine-made sand is equal to 100%, the 2.36mm sieve pore passing rate is greater than or equal to 85%, and the 0.075mm sieve pore passing rate is less than or equal to 12%;
after emulsion breaking of the emulsified asphalt is observed, the modified emulsified asphalt is sprayed on the surface layer of the gap filler in the transition section, and the spraying amount is controlled to be 1.0-1.2kg/m 2 。
2. The construction method of the gap filler between the edge of the asphalt pavement and the curb stone according to claim 1, wherein a 5-8cm transition section is additionally arranged between the edge of the asphalt pavement and the inner side of the curb stone.
3. The construction method of the gap filler between the asphalt pavement edge and the curb stone according to claim 1 or 2, wherein the gap filler of the transition section comprises 0-3mm machine-made sand, limestone mineral powder with the mass ratio of 8-12%, cement with the mass ratio of 1-2% and emulsified asphalt with the mass ratio of 10-15%.
4. The method for constructing the gap filler between the edge of the asphalt pavement and the curb according to claim 1, wherein the steps of pouring and vibrating the gap filler in the transition section comprise the following steps:
and pouring and vibrating integrated equipment is adopted to perform pouring and vibrating construction of gap filler in the transition section.
5. The asphalt pavement edge and curb gap filler construction method according to claim 1, wherein the asphalt pavement comprises:
paving a lower layer, a middle layer and an upper layer of the asphalt pavement in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484190.3A CN114717903B (en) | 2022-05-06 | 2022-05-06 | Asphalt pavement edge and curb gap filler construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484190.3A CN114717903B (en) | 2022-05-06 | 2022-05-06 | Asphalt pavement edge and curb gap filler construction method |
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| Publication Number | Publication Date |
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| CN114717903A CN114717903A (en) | 2022-07-08 |
| CN114717903B true CN114717903B (en) | 2023-12-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125039A1 (en) * | 2016-01-22 | 2017-07-27 | 交通运输部公路科学研究所 | Rut-resistant road pavement structure and pavement method thereof employing penetration by latex cement mortar |
| CN108914736A (en) * | 2018-07-26 | 2018-11-30 | 江苏增光复合材料科技有限公司 | A kind of high viscoelastic rubber modified bitumen road surface and its construction technology |
| CN109680586A (en) * | 2019-03-20 | 2019-04-26 | 苏州交通工程集团有限公司 | A kind of pavement asphalt laying method |
-
2022
- 2022-05-06 CN CN202210484190.3A patent/CN114717903B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125039A1 (en) * | 2016-01-22 | 2017-07-27 | 交通运输部公路科学研究所 | Rut-resistant road pavement structure and pavement method thereof employing penetration by latex cement mortar |
| CN108914736A (en) * | 2018-07-26 | 2018-11-30 | 江苏增光复合材料科技有限公司 | A kind of high viscoelastic rubber modified bitumen road surface and its construction technology |
| CN109680586A (en) * | 2019-03-20 | 2019-04-26 | 苏州交通工程集团有限公司 | A kind of pavement asphalt laying method |
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| CN114717903A (en) | 2022-07-08 |
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