CN113403914A - Municipal road asphalt concrete pavement construction detection method - Google Patents
Municipal road asphalt concrete pavement construction detection method Download PDFInfo
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- CN113403914A CN113403914A CN202110603616.8A CN202110603616A CN113403914A CN 113403914 A CN113403914 A CN 113403914A CN 202110603616 A CN202110603616 A CN 202110603616A CN 113403914 A CN113403914 A CN 113403914A
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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
- E01C19/46—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 preparing and placing the materials, e.g. slurry seals
- E01C19/466—Solid materials, e.g. crushing same
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- E01C19/4806—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 solely rollers for consolidating or finishing
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Machines (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a municipal road asphalt concrete pavement construction detection method, which comprises the following steps: s1: preparing materials, wherein the raw materials comprise cement, stone chips and graded broken stones; s2: cleaning a base course, wherein the surface of the base course of the pavement is cleaned before construction; s3: placing a construction sample, transversely arranging a pile position along the center line of the road, and popping up roadside elevation ink lines on the curbs at two sides; s4: paving the asphalt mixture, namely paving the mixture by using a paver; s5: rolling the asphalt mixture, and compacting the asphalt mixture according to three stages of initial pressing, re-pressing and final pressing; s6: and (4) carrying out field detection, namely detecting the compactness of the pavement on the field. According to the invention, the intensity of the asphalt concrete pavement is improved, the compaction effect is increased, the service life of the pavement is prolonged, and the construction quality of the municipal road asphalt concrete pavement can be ensured by starting rolling at a high-temperature state of the asphalt concrete.
Description
Technical Field
The invention particularly relates to the technical field of road pavement, and particularly relates to a municipal road asphalt concrete pavement construction detection method.
Background
With the rapid development of highway construction in China and the higher and higher requirements on the road surface use performance of the highway, a large number of new materials, new processes, new technologies and new structures of the road surface construction are developed at the same time so as to meet the increasing requirements of traffic volume, channelized traffic, high vehicle speed and axle load type of the highway.
In the construction engineering, the construction technology and the management level are improved to a new height, however, when the urban road construction is rapidly developed, the single pursuit of yield and neglected of quality are adopted to eliminate the problems, the strength of the road surface is reduced, the normal use of the road is influenced, and the service life of the road surface is reduced.
Disclosure of Invention
The invention aims to solve the problems that the strength of a road surface is reduced, the normal use of the road is influenced and the service life of the road surface is reduced when the urban road construction is rapidly developed and the quality is neglected to eliminate the problems while the yield is singly pursued.
In order to achieve the purpose, the invention adopts the following technical scheme:
a municipal road asphalt concrete pavement construction detection method comprises the following steps:
s1: preparing materials, wherein the raw materials comprise cement, stone chips and graded broken stones;
s2: cleaning a base course, wherein the surface of the base course of the pavement is cleaned before construction;
s3: placing a construction sample, transversely arranging a pile position along the center line of the road, and popping up roadside elevation ink lines on the curbs at two sides;
s4: paving the asphalt mixture, namely paving the mixture by using a paver;
s5: rolling the asphalt mixture, and compacting the asphalt mixture according to three stages of initial pressing, re-pressing and final pressing;
s6: detecting on site, namely detecting the compactness of the pavement on site;
s7: and (5) maintaining, namely after construction is finished, covering by using permeable geotextile for moisturizing and maintaining.
Further: in step S2, in step S1, the cement is Bombay PC32.5 cement, the crushed stone of the underlayer has the maximum grain diameter not exceeding 37.5mm, and the composition ratio of the crushed stone is 23% of crushed stone with the grain diameter of 16-31.5mm, 29% of crushed stone with the grain diameter of 10-20mm, 25% of crushed stone with the grain diameter of 5-10mm and 23% of crushed stone.
On the basis of the scheme: in step S2, a broom is used to clean the pavement base to ensure the pavement base to be dry and clean without loose stones, dust and impurities.
As a still further scheme of the invention: in the step S5, when paving, two pavers are adopted to synchronously pave the mixture forwards at a distance of 5m-10m in tandem, the width of the inner side of the paver is 6.5m, the width of the outer side of the paver is 6m, the connection width of the two pavers is 25cm, the walking speed of the pavers is kept at 2-6m/min, and the paving temperature of the asphalt mixture is 130-160 ℃.
Further: after the step S5, the rolling equipment adopts 2-3 double-wheel rollers for primary rolling: the method is carried out at a higher temperature after the mixture is paved, the compaction temperature is 130-160 ℃, a road roller rolls from the outer side to the center, the adjacent rolling belts are overlapped by 30cm, and the light steel cylinder road roller rolls twice for the initial pressing and re-pressing: and (3) preferably adopting a heavy vibratory roller for re-pressing, wherein the rolling times are 4-6 times, the temperature of the asphalt mixture is 110-120 ℃ during re-pressing, and the final pressing is as follows: and final pressing is carried out immediately after re-pressing, a double-wheel steel cylinder can be used for final pressing, static pressure is carried out for 2 times, and the temperature of the asphalt mixture during final pressing is 80-105 ℃.
On the basis of the scheme: in the step S4, in the process of paving the asphalt mixture, a worker checks the paving thickness by using a drill steel and makes a record, the compactness is detected on site, when the compactness does not meet the standard, rolling is carried out again until the compactness meets the standard, the compactness standard is 95-98%, after the detected quality is qualified, the permeable geotextile is adopted to cover for moisturizing and maintaining, and the maintenance period is 7-10 days.
The invention has the beneficial effects that:
according to the invention, the intensity of the asphalt concrete pavement is improved, the compaction effect is increased, the service life of the pavement is prolonged, and the construction quality of the municipal road asphalt concrete pavement can be ensured by starting rolling at a high-temperature state of the asphalt concrete.
Drawings
FIG. 1 is a schematic flow structure diagram of a municipal road asphalt concrete pavement construction detection method provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present patent application, it is to be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed, and the specific meaning of the terms in the patent will be understood by those skilled in the art according to the specific situation.
Embodiment 1, a municipal road asphalt concrete pavement construction detection method comprises the following steps
S1: preparing materials, wherein the raw materials comprise cement, stone chips and graded broken stones;
s2: cleaning a base course, wherein the surface of the base course of the pavement is cleaned before construction;
s3: placing a construction sample, transversely arranging a pile position along the center line of the road, wherein the transverse interval of the pile position is 5-10m, and popping up roadside elevation ink lines on the curbs at two sides so as to lay flat and grasp the height and prevent water accumulation;
s4: paving the asphalt mixture, namely paving the mixture by using a paver;
s5: rolling the asphalt mixture, and compacting the asphalt mixture according to three stages of initial pressing, re-pressing and final pressing;
s6: detecting on site, namely detecting the compactness of the pavement on site;
s7: and (5) maintaining, namely after construction is finished, covering by using permeable geotextile for moisturizing and maintaining.
In the invention: in step S1, the cement is Bombay PC32.5 cement, the crushed stone of the subbase layer has the maximum particle size not exceeding 37.5mm, the composition proportion of the crushed stone is 23% for 16-31.5mm, 29% for 10-20mm, 25% for 5-10mm and 23% for the rest, in step S2, a broom is selected to clean the base layer of the pavement to ensure that the base layer of the pavement is dry, clean and free of loose stones, dust and impurities, and the cleaning width exceeds 30cm beyond the edge of the paved asphalt concrete layer.
Further illustrated is: in step S5, two spreading machines are used to spread the mixture forward synchronously at an interval of 5m to 10m in tandem, the inside width of the spreading machine is 6.5m, the outside width of the spreading machine is 6m, the connection width of the two spreading machines is 25cm, the traveling speed of the spreading machines is kept at 2 to 6m/min, slow, uniform and uninterrupted spreading is achieved during spreading, after the spreading of each vehicle is finished, the mixture on the scattered road surface is cleaned in time, the thickness increase caused by the rolling of the crawler belts of the spreading machines is prevented, the spreading temperature of the asphalt mixture is 130 ℃ to 160 ℃, the poor temperature control can cause bubble water leakage and delamination, and secondly, in order to prevent the segregation of cement stabilized macadam mixture, a rubber mat is added on the rear baffle of the spiral distributor of the spreading machine, and after step S5, the rolling equipment adopts 2 to 3 double-wheel road rollers for initial pressing: should go on under the mixture high temperature after the paving, adopt high temperature to carry out under the primary pressure, the effect of compaction has been increased, avoid the mixture to produce and pass and the fracture, the compaction temperature is at 130 ℃ -160 ℃, the road roller should roll from outside to the center, adjacent rolling area should overlap 30cm, the primary pressure adopts light-duty steel cylinder road roller to roll twice, the roughness and the road arch on inspection road surface after the primary pressure, do suitable trimming at the time of the irregularity appearing, the purpose of primary pressure has promoted bituminous mixture's initial density, play stable effect, the repression: and (3) preferably adopting a heavy vibratory roller for re-pressing, wherein the rolling times are 4-6 times, the temperature of the asphalt mixture is 110-120 ℃ during re-pressing, and the final pressing is as follows: the final pressing is carried out immediately after re-pressing, a double-wheel steel cylinder can be selected for the final pressing, static pressure is carried out for 2 times, the purpose of the final pressing is mainly to eliminate wheel tracks and improve the flatness of a paved layer, when the phenomenon that the asphalt mixture sticks to a wheel occurs in the rolling process of a road roller, a small amount of water is sprayed to a rolling wheel, the temperature of the asphalt mixture is 80-105 ℃ at the final pressing temperature during the final pressing, the compacting treatment can be carried out by using a compactor at the place where the road roller cannot roll down during the rolling, the temperature change of the paved asphalt mixture is maximum within 4-15min, therefore, after the paving, the rolling time is well held, the adjustment is carried out in time, the construction quality of the asphalt concrete surface of the municipal road is ensured, in the step S4, a worker checks the paving thickness of the asphalt mixture by using a steel drill rod in the paving process, checks 3 places every 10m and records, and detects the degree of compaction on site, when the degree of compaction is, rolling again until the degree of compaction meets the standard, the degree of compaction standard is 95-98%, after the inspection quality is qualified, adopting permeable geotextile to cover for moisturizing and maintaining, the maintenance period is 7-10 days, during the maintenance, adopting bagged stone blocks to cover, avoiding the white exposure phenomenon caused by wind blowing, and except the maintenance of a sprinkler, other vehicles are prohibited to drive into the paved subbase layer, and during the maintenance period, if the vehicles drive into in advance, the damage of the road surface is easy to cause.
In the case of the example 2, the following examples are given,
s1: preparing materials, wherein the raw materials comprise cement, stone chips and graded broken stones;
s2: cleaning a base course, wherein the surface of the base course of the pavement is cleaned before construction;
s3: placing a construction sample, transversely arranging a pile position along the center line of the road, wherein the transverse interval of the pile position is 5-10m, and popping up roadside elevation ink lines on the curbs at two sides so as to lay flat and grasp the height and prevent water accumulation;
s4: paving the asphalt mixture, namely paving the mixture by using a paver;
s5: rolling the asphalt mixture, and compacting the asphalt mixture according to three stages of initial pressing, re-pressing and final pressing;
s6: detecting on site, namely detecting the compactness of the pavement on site;
s7: and (5) maintaining, namely after construction is finished, covering by using permeable geotextile for moisturizing and maintaining.
In the invention: in step S1, the cement is Bombay PC32.5 cement, the crushed stone of the subbase layer has the maximum particle size not exceeding 37.5mm, the composition proportion of the crushed stone is 23% for 16-31.5mm, 29% for 10-20mm, 25% for 5-10mm and 23% for the rest, in step S2, a broom is selected to clean the base layer of the pavement to ensure that the base layer of the pavement is dry, clean and free of loose stones, dust and impurities, and the cleaning width exceeds 30cm beyond the edge of the paved asphalt concrete layer.
Further illustrated is: in step S5, two spreading machines are used to spread the mixture forward synchronously at an interval of 5m to 10m in tandem, the inside width of the spreading machine is 6.5m, the outside width of the spreading machine is 6m, the connection width of the two spreading machines is 25cm, the traveling speed of the spreading machines is kept at 2 to 6m/min, slow, uniform and uninterrupted spreading is achieved during spreading, after the spreading of each vehicle is finished, the mixture on the scattered road surface is cleaned in time, the thickness increase caused by the rolling of the crawler belts of the spreading machines is prevented, the spreading temperature of the asphalt mixture is 130 ℃ to 160 ℃, the poor temperature control can cause bubble water leakage and delamination, and secondly, in order to prevent the segregation of cement stabilized macadam mixture, a rubber mat is added on the rear baffle of the spiral distributor of the spreading machine, and after step S5, the rolling equipment adopts 2 to 3 double-wheel road rollers for initial pressing: should go on under the high temperature after the mixture paves, adopt under the high temperature to carry out the primary pressure, the effect of compaction has been increased, avoid the mixture to produce and pass and the fracture, the compaction temperature is at 135 ℃ -160 ℃, the road roller should roll from outside to center, adjacent rolling area should overlap 30cm, the primary pressure adopts light-duty steel cylinder road roller to roll twice, the roughness and the road arch on inspection road surface after the primary pressure, do suitable maintenance at the time of the irregularity appearing, the purpose of primary pressure has promoted bituminous mixture's accident density, play stable effect, the repression: and (3) preferably adopting a heavy vibratory roller for re-pressing, wherein the rolling times are 4-6 times, the temperature of the asphalt mixture is 115-120 ℃ during re-pressing, and the final pressing is as follows: the final pressing is carried out immediately after re-pressing, a double-wheel steel cylinder can be selected for the final pressing, static pressure is carried out for 2 times, the purpose of the final pressing is mainly to eliminate wheel tracks and improve the flatness of a paved layer, when the phenomenon that the asphalt mixture sticks to a wheel occurs in the rolling process of a road roller, a small amount of water is sprayed to a rolling wheel, the temperature of the asphalt mixture is 100-105 ℃ at the final pressing temperature during the final pressing, the compacting treatment can be carried out by using a compactor in the place where the road roller cannot roll down during the rolling, the temperature change of the paved asphalt mixture is maximum within 4-15min, therefore, after the paving, the rolling time is well held, the adjustment is carried out in time, the construction quality of the asphalt concrete pavement of the municipal road is ensured, in the step S4, a worker checks the paving thickness by using a steel drill rod during the paving of the asphalt mixture, checks 3 places every 10m and well records, and detects the degree of compaction on site, when the compactness does not meet the standard, rolling again until the compactness meets the standard, wherein the compactness standard is 97% -98%, after the inspection quality is qualified, the permeable geotextile is adopted to cover for moisturizing maintenance, the maintenance period is 7-10 days, the bagged stone is adopted for capping during maintenance, the white exposure phenomenon caused by wind blowing is avoided, besides the maintenance of a sprinkler, other vehicles are forbidden to drive into the paved subbase layer, and the damage to the pavement is easily caused if the vehicles drive into in advance during the maintenance period.
In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A municipal road asphalt concrete pavement construction detection method is characterized by comprising the following steps:
s1: preparing materials, wherein the raw materials comprise cement, stone chips and graded broken stones;
s2: cleaning a base course, wherein the surface of the base course of the pavement is cleaned before construction;
s3: placing a construction sample, transversely arranging a pile position along the center line of the road, and popping up roadside elevation ink lines on the curbs at two sides;
s4: paving the asphalt mixture, namely paving the mixture by using a paver;
s5: rolling the asphalt mixture, and compacting the asphalt mixture according to three stages of initial pressing, re-pressing and final pressing;
s6: detecting on site, namely detecting the compactness of the pavement on site;
s7: and (5) maintaining, namely after construction is finished, covering by using permeable geotextile for moisturizing and maintaining.
2. The method for detecting the construction of the municipal road asphalt concrete pavement according to claim 1, wherein the method comprises the following steps: in step S1, the cement is Bombay PC32.5 cement, the crushed stone of the subbase layer has the maximum grain diameter not exceeding 37.5mm, and the composition ratio of the crushed stone is 23% for 16-31.5mm, 29% for 10-20mm, 25% for 5-10mm and 23% for the rest.
3. The method for detecting the construction of the municipal road asphalt concrete pavement according to claim 1, wherein the method comprises the following steps: in step S2, a broom is used to clean the pavement base to ensure the pavement base to be dry and clean without loose stones, dust and impurities.
4. The method for detecting the construction of the municipal road asphalt concrete pavement according to claim 1, wherein the method comprises the following steps: in the step S5, when paving, two pavers are adopted to synchronously pave the mixture forwards at a distance of 5m-10m in tandem, the width of the inner side of the paver is 6.5m, the width of the outer side of the paver is 6m, the connection width of the two pavers is 25cm, the walking speed of the pavers is kept at 2-6m/min, and the paving temperature of the asphalt mixture is 130-160 ℃.
5. The method for detecting the construction of the municipal road asphalt concrete pavement according to claim 1, wherein the method comprises the following steps: after the step S5, the rolling equipment adopts 2-3 double-wheel rollers for primary rolling: the method is carried out at a higher temperature after the mixture is paved, the compaction temperature is 130-160 ℃, a road roller rolls from the outer side to the center, the adjacent rolling belts are overlapped by 30cm, and the light steel cylinder road roller rolls twice for the initial pressing and re-pressing: and (3) preferably adopting a heavy vibratory roller for re-pressing, wherein the rolling times are 4-6 times, the temperature of the asphalt mixture is 110-120 ℃ during re-pressing, and the final pressing is as follows: and final pressing is carried out immediately after re-pressing, a double-wheel steel cylinder can be used for final pressing, static pressure is carried out for 2 times, and the temperature of the asphalt mixture during final pressing is 80-105 ℃.
6. The method for detecting the construction of the municipal road asphalt concrete pavement according to claim 1, wherein the method comprises the following steps: in the step S4, in the process of paving the asphalt mixture, a worker checks the paving thickness by using a drill steel and makes a record, the compactness is detected on site, when the compactness does not meet the standard, rolling is carried out again until the compactness meets the standard, the compactness standard is 95-98%, after the detected quality is qualified, the permeable geotextile is adopted to cover for moisturizing and maintaining, and the maintenance period is 7-10 days.
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| CN202110603616.8A CN113403914A (en) | 2021-05-31 | 2021-05-31 | Municipal road asphalt concrete pavement construction detection method |
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| CN202110603616.8A CN113403914A (en) | 2021-05-31 | 2021-05-31 | Municipal road asphalt concrete pavement construction detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381981A (en) * | 2022-01-28 | 2022-04-22 | 中电建路桥集团有限公司 | Construction method for double-layer combined paving test section of guide way |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2550248A1 (en) * | 1983-07-13 | 1985-02-08 | Creusot Loire | MOBILE DEVICE FOR COLD WINDING AND ROAD SPREADING OF BITUMINOUS COATED PRODUCTS FOR ROAD COVERINGS |
| CN111236018A (en) * | 2020-02-29 | 2020-06-05 | 河南省光大路桥工程有限公司 | Super-thick paving compaction process |
| CN111809474A (en) * | 2020-08-04 | 2020-10-23 | 中建八局第二建设有限公司 | Garden road color asphalt pervious concrete construction method |
-
2021
- 2021-05-31 CN CN202110603616.8A patent/CN113403914A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2550248A1 (en) * | 1983-07-13 | 1985-02-08 | Creusot Loire | MOBILE DEVICE FOR COLD WINDING AND ROAD SPREADING OF BITUMINOUS COATED PRODUCTS FOR ROAD COVERINGS |
| CN111236018A (en) * | 2020-02-29 | 2020-06-05 | 河南省光大路桥工程有限公司 | Super-thick paving compaction process |
| CN111809474A (en) * | 2020-08-04 | 2020-10-23 | 中建八局第二建设有限公司 | Garden road color asphalt pervious concrete construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381981A (en) * | 2022-01-28 | 2022-04-22 | 中电建路桥集团有限公司 | Construction method for double-layer combined paving test section of guide way |
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