CN106192701B - Construction method for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty - Google Patents
Construction method for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty Download PDFInfo
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- CN106192701B CN106192701B CN201610700564.5A CN201610700564A CN106192701B CN 106192701 B CN106192701 B CN 106192701B CN 201610700564 A CN201610700564 A CN 201610700564A CN 106192701 B CN106192701 B CN 106192701B
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
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Abstract
The invention discloses the construction methods for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty, including：Step S1, old pavement performance detection and repairing：Crack of the deflection value less than 20 (0.01mm) is repaired with casting glue, and the crack of deflection value 20 45 (0.01mm) is repaired with cement mud-jack, and plate of the deflection value more than 45 (0.01mm) carries out changing plate；Step S2 is rechecked after repairing：It is qualification that deflection value, which is less than 20 (0.01mm) just,；Step S3, road surface cleaning；Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；Step S5 overlays bituminous macadam：Bituminous macadam is overlayed using pitch synchronous breakstone technology；Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, voltage stabilizing is carried out using steel roller；Step S7, health：Bituminous macadam making carries out health after completing；Step S8, surface construction：Layer asphalt in making face after health.
Description
Technical field
The invention belongs to building fields, are related to a kind of construction method of cement concrete repaving asphalt coat, and in particular to
To a kind of construction method suitable for repaving asphalt coat after cover at cement concrete pavement table under the heavy duty of High aititude mountain area.
Background technology
On cement concrete pavement Laying Asphalt Surface Course be commonly called as it is white change black, the pavement structure of this form can absorb two kinds of materials
The advantages of material, on the one hand original cement concrete pavement, which can provide, stablizes solid base, and asphaltum concrete cover-layer can be provided and be rubbed
It is high to hinder coefficient, the good superficial layer of flatness substantially improves the performance on road surface.But from the point of view of actual using effect, instead
The passage of crack and corner is penetrated than more serious.Research shows that：Effective bonding between original road surface and bitumen layer be it is white change it is black
Transformation is successfully crucial, and it is mostly due to the tensile strength at layer bottom and anti-shearing strong often to change the reason of black road surface generates disease in vain
Spend it is low caused by.
Some northwest regions such as Qinghai, Tibet, since height above sea level is higher, climatic environment is complicated, and especially mountain road is more,
Bend and zig zag are more, are more cement concrete pavements in early stage Pavement Design in order to avoid the erosion of Moisture Damage,
As the volume of traffic and heavy-duty vehicle are more and more, road surface running vehicle comfort is increasingly paid close attention to, it is contemplated that cost reason, using compared with
More modes is to control the pitch micro-surface area of cement concrete pavement progress 1cm to restore the comfortable sexual function in road surface, but investigate hair
Existing, thin overlay micro-surface area contains higher bitumen aggregate ratio, although thin overlay can improve original road surface performance and
Road-ability, but it is not particularly suited for the more location of High aititude mountain area loaded vehicle, practice result shows can only using such mode
Delay the time of origin of disease, the durability wretched insufficiency on road surface that early disease, especially bend shortly have occurred after being open to traffic
The passage at place and reflection crack etc. not only bring great economic loss to owner's unit, but also affect normal road surface
Performance.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide one kind for water under the heavy duty of High aititude mountain area
At the table of cement concrete road surface after cover repaving asphalt coat construction method, suitable in the coagulating cement that pitch micro-surface area is controlled
Bitumen layer is laid on soil surface, to reduce passage and the reflection crack disease of corner.
The above-mentioned purpose of the present invention is achieved by following technical solution：
A kind of construction method suitable for repaving asphalt coat after cover at the lower cement concrete pavement table of high and cold heavy duty, including
Following operating procedure：
Step S1, old pavement performance detection and repairing：Old pavement to carrying out pitch micro-surface area carries out deflection value detection,
And crack repairing and plate replacement are carried out to old pavement according to deflection value size；The pit slot light to disease and ravelled spot carry out pitch
Micro-surface area changes fill out after be compacted；
Step S2 is rechecked after repairing：It is qualification that the deflection value of all slits and plate, which is less than 20 (0.01mm) just,；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Bituminous macadam is overlayed using pitch synchronous breakstone technology；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, road is pressed using steel wheel
One or more bout of machine progress voltage stabilizing, makes rubble go deep into the micro-surface area layer of old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Layer asphalt in making face after health.
Preferably, the crack repairing and plate, which are replaced, includes：To crack of the deflection value less than 20 (0.01mm) using filling
Sealing is repaired, and is repaired using cement mud-jack in the crack of 20-45 (0.01mm) to deflection value；45 are more than to deflection value
The plate of (0.01mm) carries out changing plate.
Preferably, plates of the step S1 to deflection value more than 45 (0.01mm) change the specific method of plate and is：Before changing plate
Relief of traffic changes plate after cement concrete slab intensity is formed, as other plate faces, cover pitch micro-surface area layer.
Preferably, the thickness of cover pitch micro-surface area layer is 1cm.
Preferably, step S4 seams both sides respectively overlap 1m glass fiber grids.
Preferably, step S5 pitches select 90# bi tumenf orr oads.
Preferably, the spread quantity of pitch is 0.6-1.5kg/m2。
Preferably, step S5 rubbles select hard quality, cleaning, the particle without weathering, grain size 4.75mm-9.5mm；
The full paving rate of rubble is not less than 70%.
Preferably, step S1 casting glues are cold mixing water-base epoxy pitch.
Preferably, include early strength agent, swelling agent and flyash in step S1 cement mud-jacks material.
Advantages of the present invention：
1, construction method provided by the invention does not carry out milling to the pitch micro-surface area layer on old pavement, but first basis
Deflection value size handles different diseases respectively, then carries out regeneration, and not only saving cost, (asphalt content reduces
5%), and higher shearing force can be provided, to effectively solve passage and the reflection crack disease of corner.
2, construction method provided by the invention first respectively overlaps 1m or so before overlaying bituminous macadam in seam crossing or so
Glass fiber grid, reflection crack can be effectively prevent；In addition pitch synchronous breakstone technique is selected, using rubble by former road surface
Pitch micro-surface area layer combines with having with new black top layer strength, is firmly bonded, anti-passage performance is more preferable, road surface overall structure
It is more durable.
Specific implementation mode
The essentiality content further illustrated the present invention with reference to embodiment, but present invention protection model is not limited with this
It encloses.Although being explained in detail to the present invention with reference to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be right
Technical scheme of the present invention is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention.
Embodiment 1：A kind of construction suitable for repaving asphalt coat after cover at the lower cement concrete pavement table of high and cold heavy duty
Method
Including following operating procedure：
Step S1, old pavement performance detection and repairing：Using drop hammer deflection meter (or backman beam method) to carrying out
The old pavement of pitch micro-surface area carries out deflection value detection, and around several points, weight should be surveyed for the disease that emphasis is exposed more
Joint slab ability and deflection value at point abutment joint are detected, and the crack to deflection value less than 20 (0.01mm) utilizes embedding
Glue is repaired, and is repaired using cement mud-jack in the crack of 20-45 (0.01mm) to deflection value, is more than 45 to deflection value
The plate of (0.01mm) carries out changing plate (carrying out changing plate using C35 plain concretes), need to pay close attention to change plate after between each seam
Effective connection, ensure the transmission of load；The light pit slot of disease and ravelled spot progress pitch micro-surface area are changed and are filled out, using small-sized pressure road
Machine or plate compactor compacting；Wherein, it needs the road surface for changing plate health to carry out health measure and traffic dredging organization work, waits for that cement is mixed
After concrete board intensity is formed, as other plate faces, the micro-surface area layer of cover 1cm, and ensure effective connection between each seam,
Ensure the transmission of load；Wherein, casting glue is cold mixing water-base epoxy pitch, and the mass ratio of aqueous epoxy resins and emulsified asphalt is
1:10, the solid content of emulsified asphalt otherwise be less than 50%；Wherein, include early strength agent, swelling agent and fine coal in cement mud-jack material
Ash, the ratio of mud 0.5, quality compare cement：Early strength agent：Swelling agent：Flyash=1:0.006:0.15:1；
Step S2 is rechecked after repairing：Disease Processing carries out deflection value reinspection after completing, it is necessary to assure deflection value is in technology
Within it is required that, it is qualification that the deflection value of all slits and plate, which is less than 20 (0.01mm) just, and weight is carried out for underproof plate
New repairing requires to reach qualified until meeting technology；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Using the high bitumen aggregate ratio of original thin layer micro-surface area layer, interlaminar bonding layer is being carried out
Bituminous macadam is overlayed using pitch synchronous breakstone technology when processing；Rubble selects hard quality, cleaning, without weathering
Grain, specification 4.75mm-9.5mm, completely paving rate are not less than 75%；Pitch selection 90# bi tumenf orr oads, spread quantity parameter are
1.0kg/m2；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, road is pressed using steel wheel
Machine carries out voltage stabilizing one bout, and rubble is made to go deep into the micro-surface area layer of old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Until after the assay was approved, making face layer asphalt, in strict accordance with bituminous concrete
Making technique complete each Paving Techniques, ensure the flatness and compactness on road surface；When pavement temperature is reduced to 50 DEG C or less
Ability open to traffic, and coring is required according to coring, its shearing strength between layers is tested, checks whether to meet technology requirement.
Embodiment 2：A kind of construction suitable for repaving asphalt coat after cover at the lower cement concrete pavement table of high and cold heavy duty
Method
Including following operating procedure：
Step S1, old pavement performance detection and repairing：Using drop hammer deflection meter (or backman beam method) to carrying out
The old pavement of pitch micro-surface area carries out deflection value detection, and around several points, weight should be surveyed for the disease that emphasis is exposed more
Joint slab ability and deflection value at point abutment joint are detected, and the crack to deflection value less than 20 (0.01mm) utilizes embedding
Glue is repaired, and is repaired using cement mud-jack in the crack of 20-45 (0.01mm) to deflection value, is more than 45 to deflection value
The plate of (0.01mm) carries out changing plate (carrying out changing plate using C35 plain concretes), need to pay close attention to change plate after between each seam
Effective connection, ensure the transmission of load；The light pit slot of disease and ravelled spot progress pitch micro-surface area are changed and are filled out, using small-sized pressure road
Machine or plate compactor compacting；Wherein, it needs the road surface for changing plate health to carry out health measure and traffic dredging organization work, waits for that cement is mixed
After concrete board intensity is formed, as other plate faces, the micro-surface area layer of cover 1cm, and ensure effective connection between each seam,
Ensure the transmission of load；Wherein, casting glue is cold mixing water-base epoxy pitch, and the mass ratio of aqueous epoxy resins and emulsified asphalt is
1:7.5, the solid content of emulsified asphalt otherwise be less than 50%；Wherein, include early strength agent, swelling agent and fine coal in cement mud-jack material
Ash, the ratio of mud 0.5, quality compare cement：Early strength agent：Swelling agent：Flyash=1:0.007:0.16:1；
Step S2 is rechecked after repairing：Disease Processing carries out deflection value reinspection after completing, it is necessary to assure deflection value is in technology
Within it is required that, it is qualification that the deflection value of all slits and plate, which is less than 20 (0.01mm) just, and weight is carried out for underproof plate
New repairing requires to reach qualified until meeting technology；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Using the high bitumen aggregate ratio of original thin layer micro-surface area layer, interlaminar bonding layer is being carried out
Bituminous macadam is overlayed using pitch synchronous breakstone technology when processing；Rubble selects hard quality, cleaning, without weathering
Grain, specification 4.75mm-9.5mm, completely paving rate are not less than 70%；Pitch selection 90# bi tumenf orr oads, spread quantity parameter are
1.5kg/m2；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, road is pressed using steel wheel
Machine carries out voltage stabilizing one bout, and rubble is made to go deep into the micro-surface area layer of old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Until after the assay was approved, making face layer asphalt, in strict accordance with bituminous concrete
Making technique complete each Paving Techniques, ensure the flatness and compactness on road surface；When pavement temperature is reduced to 50 DEG C or less
Ability open to traffic, and coring is required according to coring, its shearing strength between layers is tested, checks whether to meet technology requirement.
Embodiment 3：A kind of construction suitable for repaving asphalt coat after cover at the lower cement concrete pavement table of high and cold heavy duty
Method
Including following operating procedure：
Step S1, old pavement performance detection and repairing：Using drop hammer deflection meter (or backman beam method) to carrying out
The old pavement of pitch micro-surface area carries out deflection value detection, and around several points, weight should be surveyed for the disease that emphasis is exposed more
Joint slab ability and deflection value at point abutment joint are detected, and the crack to deflection value less than 20 (0.01mm) utilizes embedding
Glue is repaired, and is repaired using cement mud-jack in the crack of 20-45 (0.01mm) to deflection value, is more than 45 to deflection value
The plate of (0.01mm) carries out changing plate (carrying out changing plate using C35 plain concretes), need to pay close attention to change plate after between each seam
Effective connection, ensure the transmission of load；The light pit slot of disease and ravelled spot progress pitch micro-surface area are changed and are filled out, using small-sized pressure road
Machine or plate compactor compacting；Wherein, it needs the road surface for changing plate health to carry out health measure and traffic dredging organization work, waits for that cement is mixed
After concrete board intensity is formed, as other plate faces, the micro-surface area layer of cover 1cm, and ensure effective connection between each seam,
Ensure the transmission of load；Wherein, casting glue is cold mixing water-base epoxy pitch, and the mass ratio of aqueous epoxy resins and emulsified asphalt is
1:12.5, the solid content of emulsified asphalt otherwise be less than 50%；Wherein, include early strength agent, swelling agent and powder in cement mud-jack material
Coal ash, the ratio of mud 0.5, quality compare cement：Early strength agent：Swelling agent：Flyash=1:0.008:0.17:1；
Step S2 is rechecked after repairing：Disease Processing carries out deflection value reinspection after completing, it is necessary to assure deflection value is in technology
Within it is required that, it is qualification that the deflection value of all slits and plate, which is less than 20 (0.01mm) just, and weight is carried out for underproof plate
New repairing requires to reach qualified until meeting technology；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Using the high bitumen aggregate ratio of original thin layer micro-surface area layer, interlaminar bonding layer is being carried out
Bituminous macadam is overlayed using pitch synchronous breakstone technology when processing；Rubble selects hard quality, cleaning, without weathering
Grain, specification 4.75mm-9.5mm, completely paving rate are not less than 80%；Pitch selection 90# bi tumenf orr oads, spread quantity parameter are
1.2kg/m2；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, road is pressed using steel wheel
Machine carries out voltage stabilizing one bout, and rubble is made to go deep into the micro-surface area layer of old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Until after the assay was approved, making face layer asphalt, in strict accordance with bituminous concrete
Making technique complete each Paving Techniques, ensure the flatness and compactness on road surface；When pavement temperature is reduced to 50 DEG C or less
Ability open to traffic, and coring is required according to coring, its shearing strength between layers is tested, checks whether to meet technology requirement.
Embodiment 4：Comparative example is compared with embodiment 1, and milling is carried out to old pavement micro-surface area layer：
Step S1, old pavement performance detection and repairing：The micro-surface area cover of cement concrete pavement is carried out first complete
Milling is handled, and then carries out deflection value detection to the old pavement after milling using drop hammer deflection meter (or backman beam method),
The disease that emphasis is exposed around should survey several points more, the joint slab ability and deflection value at emphasis abutment joint into
Row detection, the crack to deflection value less than 20 (0.01mm) is repaired using casting glue, to deflection value at 20-45 (0.01mm)
Crack repaired using cement mud-jack, the plate to deflection value more than 45 (0.01mm) change plate and (utilizes C35 element coagulations
Soil carries out changing plate), it needs to pay close attention to effective connection between each seam after changing plate, ensures the transmission of load；Wherein, it needs to change
Health measure and traffic dredging organization work are carried out in the road surface of plate health, and ensure effective connection between each seam, ensure to carry
The transmission of lotus；Wherein, casting glue is cold mixing water-base epoxy pitch, and the mass ratio of aqueous epoxy resins and emulsified asphalt is 1:10,
The solid content of emulsified asphalt however be less than 50%；Wherein, include early strength agent, swelling agent and flyash, water in cement mud-jack material
Gray scale is 0.5, and quality compares cement：Early strength agent：Swelling agent：Flyash=1:0.006:0.15:1；
Step S2 is rechecked after repairing：Disease Processing carries out deflection value reinspection after completing, it is necessary to assure deflection value is in technology
Within it is required that, it is qualification that the deflection value of all slits and plate, which is less than 20 (0.01mm) just, and weight is carried out for underproof plate
New repairing requires to reach qualified until meeting technology；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Bituminous macadam is overlayed using pitch synchronous breakstone technology；Rubble selects quality
Hard, cleaning, the particle without weathering, specification 4.75mm-9.5mm, completely paving rate are not less than 75%；Pitch selects 90# roads
Asphalt, spread quantity parameter are 1.0kg/m2；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, road is pressed using steel wheel
Machine carries out voltage stabilizing one bout, and rubble is made to go deep into old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Until after the assay was approved, making face layer asphalt, in strict accordance with bituminous concrete
Making technique complete each Paving Techniques, ensure the flatness and compactness on road surface；When pavement temperature is reduced to 50 DEG C or less
Ability open to traffic, and coring is required according to coring, its shearing strength between layers is tested, checks whether to meet technology requirement.
Embodiment 5：Effect example
Coring is required according to coring, tests its shearing strength between layers, checks whether to meet technology requirement.Test result such as following table
It is shown.
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Shearing strength (MPa) | 2.4 | 2.2 | 2.3 | 1.5 |
The comparison of embodiment 1 and embodiment 4 is as can be seen that construction method of the present invention is not required to the micro- table of pitch on old pavement
Locate layer and carry out milling, but first different diseases are handled respectively according to deflection value size, then carry out regeneration, not only saves
Cost (asphalt content reduces by 5%) has been saved, and higher shearing force can be provided compared with the method for milling, to effectively solve
The passage of corner and reflection crack disease.
The effect of above-described embodiment indicates that the essentiality content of the present invention, but the protection of the present invention is not limited with this
Range.It will be understood by those of ordinary skill in the art that technical scheme of the present invention can be modified or replaced equivalently,
Without departing from the essence and protection domain of technical solution of the present invention.
Claims (8)
1. a kind of construction method suitable for repaving asphalt coat after cover at the lower cement concrete pavement table of high and cold heavy duty, feature
It is, including following operating procedure：
Step S1, old pavement performance detection and repairing：Old pavement to carrying out pitch micro-surface area carries out deflection value detection, and root
Crack repairing is carried out to old pavement according to deflection value size and plate is replaced；The pit slot light to disease and ravelled spot carry out the micro- table of pitch
Place changes fill out after be compacted；
Step S2 is rechecked after repairing：It is qualification that the deflection value of all slits and plate, which is less than 20 sides,；
Step S3, road surface cleaning：Particle, soil, sundries on the qualified old pavement of repairing is cleaned up；
Step S4, seam are strengthened；Seam crossing both sides overlap glass fiber grid；
Step S5 overlays bituminous macadam：Bituminous macadam is overlayed using pitch synchronous breakstone technology；
Step S6, voltage stabilizing：When bituminous macadam temperature is reduced to steel roller not glue rubble, using steel roller into
One or more bout of row voltage stabilizing makes rubble go deep into the micro-surface area layer of old pavement；
Step S7, health：Bituminous macadam making carries out health after completing, and centre must not open to traffic；
Step S8, surface construction：Layer asphalt in making face after health.
2. construction method according to claim 1, which is characterized in that the crack repairing and plate replacement include：To curved
Heavy crack of the value less than 20 is repaired using casting glue, is repaired using cement mud-jack in the crack of 20-45 to deflection value；
Plate to deflection value more than 45 carries out changing plate.
3. construction method according to claim 2, which is characterized in that the plate to deflection value more than 45 change the tool of plate
Body method is：Relief of traffic before plate is changed, changes plate after cement concrete slab intensity is formed, as other plate faces, cover pitch
Micro-surface area layer.
4. construction method according to claim 3, it is characterised in that：The thickness of cover pitch micro-surface area layer is 1cm.
5. construction method according to claim 1, which is characterized in that step S4 seams both sides respectively overlap 1m glass fiber grids.
6. construction method according to claim 1, which is characterized in that step S5 pitches select 90# bi tumenf orr oads.
7. construction method according to claim 6, which is characterized in that the spread quantity of pitch is 0.6-1.5kg/m2。
8. construction method according to claim 1, which is characterized in that step S5 rubbles selection quality is hard, cleans, is free of
The particle of weathering, grain size 4.75mm-9.5mm；The full paving rate of rubble is not less than 70%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700564.5A CN106192701B (en) | 2016-08-22 | 2016-08-22 | Construction method for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty |
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|---|---|---|---|
| CN201610700564.5A CN106192701B (en) | 2016-08-22 | 2016-08-22 | Construction method for repaving asphalt coat after the lower concrete road surface punishment of high and cold heavy duty |
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| CN106192701B true CN106192701B (en) | 2018-07-24 |
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| CN107288003A (en) * | 2017-07-19 | 2017-10-24 | 广东金长成桥梁隧道科技有限公司 | A kind of road surface or preventive maintenance of deck structure and its construction method |
| CN115450086B (en) * | 2022-09-08 | 2023-10-13 | 广西北投交通养护科技集团有限公司 | Old cement concrete pavement reconstruction structure suitable for non-extra-heavy traffic grade and design method |
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|---|---|---|---|---|
| CN101603286A (en) * | 2009-07-03 | 2009-12-16 | 江西赣粤高速公路股份有限公司 | Old road asphalt stabilized macadam overlay reforming method and structure thereof |
| CN101691736A (en) * | 2009-09-23 | 2010-04-07 | 中交二公局第六工程有限公司 | Construction method for reconstructing old concrete pavement by paving asphalt-concrete surface layer |
| CN105256686A (en) * | 2015-10-10 | 2016-01-20 | 青海正平公路养护工程有限公司 | High-grade highway high and cold road surface micro-surfacing preventive maintenance construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100476132B1 (en) * | 1999-12-17 | 2005-03-15 | 미쓰이 가가쿠 가부시키가이샤 | Road reinforcing sheet, structure of asphalt reinforced pavement and method for paving road |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603286A (en) * | 2009-07-03 | 2009-12-16 | 江西赣粤高速公路股份有限公司 | Old road asphalt stabilized macadam overlay reforming method and structure thereof |
| CN101691736A (en) * | 2009-09-23 | 2010-04-07 | 中交二公局第六工程有限公司 | Construction method for reconstructing old concrete pavement by paving asphalt-concrete surface layer |
| CN105256686A (en) * | 2015-10-10 | 2016-01-20 | 青海正平公路养护工程有限公司 | High-grade highway high and cold road surface micro-surfacing preventive maintenance construction method |
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