CN108914748A - A kind of road surface construction grout sealing technique - Google Patents
A kind of road surface construction grout sealing technique Download PDFInfo
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- CN108914748A CN108914748A CN201810833942.6A CN201810833942A CN108914748A CN 108914748 A CN108914748 A CN 108914748A CN 201810833942 A CN201810833942 A CN 201810833942A CN 108914748 A CN108914748 A CN 108914748A
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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
- E01C19/12—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 distributing granular or liquid materials
- E01C19/16—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 distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
- E01C19/17—Application by spraying or throwing
- E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to road technology fields, and in particular to a kind of road surface construction grout sealing technique, using following steps：Step 1：Material preparation phase, wherein：(1) AXYS asphaltic liquid；(2) sand；(3) water；Step 2：The equipment preparation stage：By the production of Nantong Ke Heng construction engineering corporation, Ltd, the distribution vehicle of model KH0126；Step 3：It carries out AXYS asphaltic liquid, sand, the water in step 1 to be mixed to form mixing liquid material, step 4：The amount of paving setting：Step 5：By the mixing liquid material in step 3, it is added in the spread equipment in step 2 by the total amount that the requirement in step 4 is formed；Step 6：Containing sand seal layer working procedure；It can quickly pave, and the construction time is short, and speed is fast, in construction will not generation environment and human body generate harmful volatile substance, to influence environment and the health of construction personnel.
Description
Technical field
The present invention relates to road technology fields, and in particular to a kind of road surface construction grout sealing technique.
Background technique
With social development, road, which becomes, links intercity artery.And a place or city will be developed, road first
It constructs synchronous with urban development.And road is after use, but needs to repair it maintenance, there is crack, hole in blocking the way face
After the problems such as slot etc., traditional method is to be overhauled on a large scale, and the above method is at high cost, the construction time, is unfavorable for city hair
Exhibition and traffic.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of road surface construction grout sealing works
Skill.
A kind of road surface construction grout sealing technique of the present invention, using following steps：
Step 1：Material preparation phase, wherein：
(1) AXYS asphaltic liquid；
(2) sand：Sand is fine aggregate, and fine aggregate may include a certain proportion of trade waste, but wherein should not contain because
The material and harmful substance of cement agglomeration or conglomeration, fine aggregate maximum particle diameter are no more than 2.36mm；The adding proportion root of fine aggregate
It is determined according to the road table degree of roughness and the overall amount of paving on former road surface of constructing, range is 25% -35%；
(3) water：Clean and drinkable water, without nocuousness solubility salt；Find that viscosity is excessive in whipping process, AXYS
1% external adding water can be added, sample detection viscosity must be up to standard after stirring；
Step 2：The equipment preparation stage：By the production of Nantong Ke Heng construction engineering corporation, Ltd, model KH0126's is spilt
Cloth vehicle；
Step 3：It carries out AXYS asphaltic liquid, sand, the water in step 1 to be mixed to form mixing liquid material, wherein AXYS pitch
The ratio such as following table of liquid, sand, water：
| Mix liquid material | 100 kilograms |
| AXYS asphaltic liquid | 70-80 kilograms |
| Water | Less than 1 kilogram |
| Sand | 20-30 kilograms |
Step 4：The amount of paving setting：Bituminous pavement passes through the traffic bound and high temperature action of many years, and anti-slide performance compares
Difference, construction texture is also smaller, belongs to the situation of " smooth " or " moderate ", and the amount of paving being typically chosen is 0.6-1.2 kilograms/
Square；
Step 5：By the mixing liquid material in step 3, it is added in step 2 by the total amount that the requirement in step 4 is formed
In spread equipment；
Step 6：Containing sand seal layer working procedure, using following steps：
(1) preparation stage before spraying：Before sprinkling, asphalt surface course surface should be cleaned up, remove soil, grit, silt particle,
Blow off sundries with forest fire extinguisher, rinsed with clear water, moisture must evaporate it is clean, dry；
(2) spraying method：When using mechanically spraying, using the distribution vehicle in step 2, width as needed opens spray
Unrounded number, once most wide to spray 3.75 meters, quantity for spray is 100-200 kilograms per minute, 3-5 kilometers per hour of spraying rate, is covered
About 200 square metres per minute of capping product；
(3)：Sprayed it is 1 hour dry after first layer after the i.e. sprayable second layer, in the case where there is sunlight, about 2 hours
It can open to traffic；
(4) it constructs：
(a) sealing of mist containing the sand construction general same day carries out the mixing of pitch and fine aggregate, the environment temperature in mixed process
It should control between 20 degree to 30 degree.Distribution vehicle can be added in construction the previous day in asphalt material, into tank car or stirring container
Preceding needs are filtered, and prevent particulate matter in pitch from entering；
(b) seal coat distribution truck of mist containing sand will select suitable nozzle, and spread speed and fountain height keep stablizing.Distribution vehicle is answered
There is good metering facility, it is ensured that equably implement sprinkling by specified quantity.Width as needed opens nozzle quantity, once
It is most wide to spray 3.75 meters；
(c) hand spray is only limited to small range use, is sprayed using man-hour manually hand-held spray bars, if you need to spray second
Layer should be sprayed along the vertical direction of first layer as much as possible.
(d) entire machine must operation conditions it is good, should be checked item by item before construction the engine of sealing machine, transmission system,
Whether hydraulic pump, emulsion pumps, water pump, pitch pipeline, filter screen, valve system etc. are normal, and check mixture stirring blade, spray
It spills whether bar height etc. keeps good working order, otherwise cannot go into operation；
(e) it is laid with 3-5 meters wide engineering paper or colour bar cloth in starting and final position, accurately to carry out lateral linking；
(f) the open to traffic time must adjust in time according to when daily temperature situation and traffic conditions after constructing, generally not
Less than 2 hours；
(g) it has constructed and has cleaned pitch sprinkling car immediately, accomplished to thoroughly remove solid residue, prevent and treat spray nozzle clogging, influence
Construction next time.
Further, the fine aggregate in step 1, when construction road situation is relatively smooth, to guarantee road long-time service property
Can, increase anti-skid factor, the spread quantity of sand is increased to 40% or so, is finally advisable with not dusting after road open to traffic.
Further, in step 6, using hand spray when being directed to small-scale road surface construction, with spray bars brushing,
It, should be along the vertical direction brushing of first layer when need to apply the second layer.
Beneficial effects of the present invention are：
(1) sealing of mist containing sand contains the fine sand of certain volume, and the antiskid performance on road surface can be improved.The flowing of tar sand mixture
Property is fine, it is also possible to permeate, be filled into pavement microcrack or in gap, play the role of filling and water shutoff.
(2) sealing of mist containing sand contains the materials such as polymer modifiers, can delay the aging of road surface cementitious matter, so that road table
The performance of asphalt material obtains certain recovery, is able to maintain or reinforces the adhesive property of asphalt and aggregate.
(3) envelope of mist containing sand a variety of materials composition has reasonable formula, forms one layer of good protective layer, attrition resistance energy
Very strong and holding is permanent.
(4) its unique scientific formula of the sealing of mist containing sand can reduce invasion and influence of the road surface by ultraviolet light, to improvement
With recovery road surface color persistent.
(5) sealing of mist containing sand should be a kind of bitumen technology of environmental protection, will not generate in production and work progress to environment
Harmful volatile substance is generated with human body.
After adopting the above structure, the present invention has the beneficial effect that：A kind of road surface construction grout sealing work of the present invention
Skill, it can quickly pave, and the construction time is short, and speed is fast, will not generation environment and the harmful volatilization of human body generation in construction
Substance, to influence environment and the health of construction personnel.
Detailed description of the invention
Described herein the drawings are intended to provide a further understanding of the invention, constitutes part of this application, but
It does not constitute improper limitations of the present invention, in the accompanying drawings：
Fig. 1 is construction Craft flow chart of the invention.
Specific embodiment
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used to explain the present invention but not as a limitation of the invention.
As shown in Figure 1, a kind of road surface construction grout sealing technique described in present embodiment, using following step
Suddenly：
Step 1：Material preparation phase, wherein：
(1) AXYS asphaltic liquid, modifying agent are high molecular polymer；
Meet such as following table technical requirements：
(3) sand：Sand is fine aggregate, and fine aggregate may include a certain proportion of trade waste, but wherein should not contain because
The material and harmful substance of cement agglomeration or conglomeration, fine aggregate maximum particle diameter are no more than 2.36mm；The adding proportion root of fine aggregate
It is determined according to the road table degree of roughness and the overall amount of paving on former road surface of constructing, range is 25% -35%；
(3) water：Clean and drinkable water, without nocuousness solubility salt；Find that viscosity is excessive in whipping process, AXYS
1% external adding water can be added, sample detection viscosity must be up to standard after stirring；AXYS answers the amount of strict control external adding water, adds water
It excessively will affect product stability；
Step 2：The equipment preparation stage：By the production of Nantong Ke Heng construction engineering corporation, Ltd, model KH0126's is spilt
Cloth vehicle；
The performance of spread equipment is as follows：It fills and uses hydraulic drive type length spiral blender in vivo, skill is stirred using adverse current
Art makes aggregate keep best suspended state, is never deposited to bottom；Driver and manipulator can control in driver's cabin
All systems, including blender starting/stopping/reverse, spray boom starting/stopping, height and width adjustment, elongation, sidesway, independence
Jet control；This seal coat distribution truck containing sand is automatically controlled by vehicle-mounted computer system, is constantly adjusted according to chassis speed and spray width
Whole pump speed, it is ensured that spray rate is accurate；This equipment uses the most leading low-pressure system in the whole world and high-pressure injection equipment, uses
Pressure is less than 40PSI, high-efficient.When operating, the pressure of pump is set in 120PSI, and the flow of mixture is 100-200 kilograms/
Minute, running speed is controlled at 3.0-5.0 kilometers/hour, to guarantee the material utilization amount of sprinkling.The whole set equipment has per hour
Achievable 12000--15000 square metres two layers of ability of sprinkling.The equipment is also separately configured with artificial spray appliance one in construction
Platform fills spray equipped with 10 meters of long tubes with manual spray gun as can be used at extreme terrain or drain spray, to ensure quality or complete distinguishingly type
The needs of spraying；Equipment charging in place, can fill 8 tons the material of body for 15-30 minutes along speed, only loading machine or crane cooperation
Material is loaded and is finished, and can be started to work；Spray boom is automatic retracting, and maximum spread width is 3.75 meters, can be with single injector operation.It spills
Cloth is uniformly without stopping state；
Step 3：It carries out AXYS asphaltic liquid, sand, the water in step 1 to be mixed to form mixing liquid material, wherein AXYS pitch
The ratio such as following table of liquid, sand, water：
| Mix liquid material | 100 kilograms |
| AXYS asphaltic liquid | 70-80 kilograms |
| Water | Less than 1 kilogram |
| Sand | 20-30 kilograms |
Step 4：The amount of paving setting：Bituminous pavement passes through the traffic bound and high temperature action of many years, and anti-slide performance compares
Difference, construction texture is also smaller, belongs to the situation of " smooth " or " moderate ", and the amount of paving being typically chosen is 0.6-1.2 kilograms/
Square；
The amount of paving can also be selected according to following table：
| Construction road face surface texture | The amount of paving (kilogram/square) |
| It is smooth | 0.60-0.8 |
| It is moderate | 0.8-1.20 |
| It is coarse | 1.2-1.45 |
Step 5：By the mixing liquid material in step 3, it is added in step 2 by the total amount that the requirement in step 4 is formed
In spread equipment；
Specially：Before equipment prepares construction, ton bucket is adjusted at the top of equipment using crane, is added directly into tank, or use
Pitch is extracted into filling in vivo directly from ton bucket by bitumenpump, while extracting pitch, the additional diamond dust of human assistance, according to rule
Fixed dosage addition；On one side plus diamond dust, start the agitating device of the seal coat distribution truck containing sand on one side, reverse to stir, agitation is general
After twenty minutes, diamond dust will be suspended in lotion completely, can carry out spread operation；
Step 6：Containing sand seal layer working procedure, using following steps：
(1) preparation stage before spraying：Before sprinkling, asphalt surface course surface should be cleaned up, remove soil, grit, silt particle,
Blow off sundries with forest fire extinguisher, rinsed with clear water, moisture must evaporate it is clean, dry；
Explanation：AXYS material cannot construct in rainy day or greasy weather, and the road surface and air themperature before and after constructing must be at 20 DEG C
On, mixture is sprayed again as road table temperature is higher than after 38.0 DEG C of suggestions can get road surface wet with water mists, and relative humidity is preferably low
In 60%, highest 80%；
The present invention will not generate in production and work progress generates harmful volatile substance to environment and human body, and scene is applied
Worker person is without wearing gas defence protector, and scene is without toxic volatile substance and penetrating odor；
(2) spraying method：When using mechanically spraying, using the distribution vehicle in step 2, width as needed opens spray
Unrounded number, once most wide to spray 3.75 meters, quantity for spray is 100-200 kilograms per minute, 3-5 kilometers per hour of spraying rate, is covered
About 200 square metres per minute of capping product；
Spraying requires：Preventive maintenance should defer to four suitable principles, i.e., suitable time, suitable place, with conjunction
Suitable method selects suitable material to carry out preventive maintenance.
The method that drainage pavement biggish for pavement structural depth, the road surface SMA can spray three layers of mixture, to extend
The service life of the material.And two layers of mixture of spraying can be used in the general road surface of road pavement construction depth (road surface AC or SMA).Spraying
The way of two layers of mixture is suitble to most of highway.The municipal road surface of construction depth very little, also sprayable one layer of mixing
Material (one layer of maintenance service life compared with two layers will halve or more).
AXYS is sprayed on road surface by two layers of amount, and for daily traffic volume on 50,000 roads, the effective efficiency phase is 2-4
Year.It is primary every 2-4 sprinkling in an effective life cycle in road, the service life 200% of road can be extended
(3)：Sprayed it is 1 hour dry after first layer after the i.e. sprayable second layer, in the case where there is sunlight, about 2 hours
It can open to traffic；
(4) it constructs：
(a) sealing of mist containing the sand construction general same day carries out the mixing of pitch and fine aggregate, the environment temperature in mixed process
It should control between 20 degree to 30 degree.Distribution vehicle can be added in construction the previous day in asphalt material, into tank car or stirring container
Preceding needs are filtered, and prevent particulate matter in pitch from entering；
(b) seal coat distribution truck of mist containing sand will select suitable nozzle, and spread speed and fountain height keep stablizing.Distribution vehicle is answered
There is good metering facility, it is ensured that equably implement sprinkling by specified quantity.Width as needed opens nozzle quantity, once
It is most wide to spray 3.75 meters；
(c) hand spray is only limited to small range use, is sprayed using man-hour manually hand-held spray bars, if you need to spray second
Layer should be sprayed along the vertical direction of first layer as much as possible.
(d) entire machine must operation conditions it is good, should be checked item by item before construction the engine of sealing machine, transmission system,
Whether hydraulic pump, emulsion pumps, water pump, pitch pipeline, filter screen, valve system etc. are normal, and check mixture stirring blade, spray
It spills whether bar height etc. keeps good working order, otherwise cannot go into operation；
(e) it is laid with 3-5 meters wide engineering paper or colour bar cloth in starting and final position, accurately to carry out lateral linking；
(f) the open to traffic time must adjust in time according to when daily temperature situation and traffic conditions after constructing, generally not
Less than 2 hours；
(g) it has constructed and has cleaned pitch sprinkling car immediately, accomplished to thoroughly remove solid residue, prevent and treat spray nozzle clogging, influence
Construction next time.
Further, the fine aggregate in step 1, when construction road situation is relatively smooth, to guarantee road long-time service property
Can, increase anti-skid factor, the spread quantity of sand is increased to 40% or so, is finally advisable with not dusting after road open to traffic.
Further, in step 6, using hand spray when being directed to small-scale road surface construction, with spray bars brushing,
It, should be along the vertical direction brushing of first layer when need to apply the second layer
Each link tissue of the invention and quality assurance are described as follows：
1, material and equipment inspection before constructing：
(1) layer material containing sand seal is preferably sieved using first 24 hours, in this way can be to avoid the precipitating of the layer material containing sand seal.
(2) enough stirrings should be carried out before use, because more to stir viscosity lower for layer material containing sand seal, can preferably be protected
It is uniform to demonstrate,prove spread；But can not undue agitation, be advisable within 30 minutes with being no more than.
(3) raw material examining report must be provided before constructing, and confirm and meet the requirements；The calibration report of equipment must be provided
It accuses；It can construct after confirmation material, equipment meet the requirements.
(4) when finding spread quantity if there is a change, the setting of distribution vehicle should be readjusted, spread quantity is confirmed, meets
It can construct after it is required that.
(5) scope of examination and requirement, such as following table before mist sealing is constructed：
| Inspection item | Required value | Inspection frequency | Remarks |
| Modified emulsifying asphalt | Meet contract provision requirement | Every batch of supplied materials is primary | The detection project of table 1 |
| Graticule protection | It cannot pollute | It is completely continuous | - |
| Infiltration coefficient | Actual measurement | The lane 5 points/km. | The detection on former road surface |
| Coefficient of friction | Actual measurement | The lane 5 points/km. | The detection on former road surface |
| Construction depth | Actual measurement | The lane 5 points/km. | The detection on former road surface |
(6) the quality control in work progress：The projects such as appearance spread effect, spread quantity should be detected in construction,
Detect frequency and method such as following table：
Mist sealing work progress examination requirements
After mist sealing has been constructed, anti-skid test, construction depth test, infiltration test should be carried out, guarantees that sealing works.Such as
Fruit testing result is not up to standard, is unable to open to traffic；It adopts remedial measures, before open to traffic, removes the safeguard measure of mark (line),
Check whether mark (line) is contaminated.
(7) detection of mist sealing IMM algorithm generally carries out after being open to traffic one month, and indices should meet following table：
Mist sealing acceptance standards
The control of work progress quality should be according in the present invention《Standard specification for construction and acceptance of highway asphalt pavement》(JTGF40-2004)
And《Asphalt highway maintenance technology specification》(JTJ073.2-2001) it requires to execute.The above is only of the invention preferable
Embodiment, therefore all equivalent change or modifications done according to feature described in present patent application range and principle include
In within the scope of present patent application.
Claims (3)
1. a kind of road surface construction grout sealing technique, it is characterised in that：Using following steps：
Step 1：Material preparation phase, wherein：
(1) AXYS asphaltic liquid；
(2) sand：Sand is fine aggregate, and fine aggregate may include a certain proportion of trade waste, but wherein should not contain because of cement
The material and harmful substance of agglomeration or conglomeration, fine aggregate maximum particle diameter are no more than 2.36mm；The adding proportion of fine aggregate is according to applying
The road table degree of roughness on work original road surface and the overall amount of paving determine that range is 25% -35%；
(3) water：Clean and drinkable water, without nocuousness solubility salt；Find that viscosity is excessive in whipping process, AXYS can be with
1% external adding water is added, sample detection viscosity must be up to standard after stirring；
Step 2：The equipment preparation stage：By the production of Nantong Ke Heng construction engineering corporation, Ltd, the spread of model KH0126
Vehicle；
Step 3：It carries out AXYS asphaltic liquid, sand, the water in step 1 to be mixed to form mixing liquid material, AXYS asphaltic liquid, sand, water
Ratio be：When mixing liquid material weight is 100 kilograms, wherein the weight of AXYS asphaltic liquid is 70-80 kilograms, and the weight of water is small
In 1 kilogram, the weight of sand is 20-30 kilograms；
Step 4：The amount of paving setting：Bituminous pavement passes through the traffic bound and high temperature action of many years, and anti-slide performance is poor, structure
It makes that texture is also smaller, belongs to the situation of " smooth " or " moderate ", the amount of paving being typically chosen is 0.6-1.2 kilograms/squares；
Step 5：By the mixing liquid material in step 3, the spread in step 2 is added by the total amount that the requirement in step 4 is formed
In equipment；
Step 6：Containing sand seal layer working procedure, using following steps：
(1) preparation stage before spraying：Before sprinkling, asphalt surface course surface should be cleaned up, remove soil, grit, silt particle, use is gloomy
Woods fire extinguisher blows off sundries, is rinsed with clear water, moisture must evaporate it is clean, dry；
(2) spraying method：When using mechanically spraying, using the distribution vehicle in step 2, width as needed opens nozzle number
Amount, once most wide to spray 3.75 meters, quantity for spray is 100-200 kilograms per minute, 3-5 kilometers per hour of spraying rate, covering surface
About 200 square metres per minute of product；
(3)：Sprayed it is 1 hour dry after first layer after the i.e. sprayable second layer, in the case where there is sunlight, about 2 hours
Open to traffic；
(4) it constructs：
(a) sealing of mist containing the sand construction general same day carries out the mixing of pitch and fine aggregate, and the environment temperature in mixed process should be controlled
System is between 20 degree to 30 degree.Asphalt material can in construction the previous day be added distribution vehicle, into tank car or stirring container before need
It is filtered, prevents particulate matter in pitch from entering；
(b) seal coat distribution truck of mist containing sand will select suitable nozzle, and spread speed and fountain height keep stablizing.Distribution vehicle should have good
Good metering facility, it is ensured that equably implement sprinkling by specified quantity.Width as needed opens nozzle quantity, once most wide
3.75 meters can be sprayed；
(c) hand spray is only limited to small range use, is sprayed using man-hour manually hand-held spray bars, if you need to spray the second layer, is answered
It is sprayed as much as possible along the vertical direction of first layer.
(d) entire machine must operation conditions it is good, the engine of sealing machine, transmission system, hydraulic should be checked before construction item by item
Whether pump, emulsion pumps, water pump, pitch pipeline, filter screen, valve system etc. are normal, and check mixture stirring blade, spray bars
Whether height etc. keeps good working order, otherwise cannot go into operation；
(e) it is laid with 3-5 meters wide engineering paper or colour bar cloth in starting and final position, accurately to carry out lateral linking；
(f) the open to traffic time must adjust in time according to when daily temperature situation and traffic conditions after constructing, and typically no less than 2
Hour；
(g) it has constructed and has cleaned pitch sprinkling car immediately, accomplished to thoroughly remove solid residue, prevent and treat spray nozzle clogging, influence next time
Construction.
2. a kind of road surface construction grout sealing technique according to claim 1, it is characterised in that：Thin collection in step 1
Material, when construction road situation is relatively smooth, to guarantee that road Long-Term Properties, increase anti-skid factor increase the spread quantity of sand
It is added to 40% or so, is finally advisable with not dusting after road open to traffic.
3. a kind of road surface construction grout sealing technique according to claim 1, it is characterised in that：In step 6, for
Hand spray is used when small-scale road surface construction, it should be along the Vertical Square of first layer when need to apply the second layer with spray bars brushing
To brushing.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111519490A (en) * | 2020-04-26 | 2020-08-11 | 山东省高速路桥养护有限公司 | Construction method of fine anti-sliding seal layer |
| CN111519491A (en) * | 2020-04-26 | 2020-08-11 | 山东省高速路桥养护有限公司 | Construction method of sand-containing fog seal in highway maintenance |
| CN115162092A (en) * | 2022-06-23 | 2022-10-11 | 湖南省通和工程有限公司 | Construction process of super-sticky wearing layer |
| CN115162090A (en) * | 2022-08-02 | 2022-10-11 | 中国建筑第八工程局有限公司 | Compaction method for asphalt pavement |
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| CN111519491A (en) * | 2020-04-26 | 2020-08-11 | 山东省高速路桥养护有限公司 | Construction method of sand-containing fog seal in highway maintenance |
| CN115162092A (en) * | 2022-06-23 | 2022-10-11 | 湖南省通和工程有限公司 | Construction process of super-sticky wearing layer |
| CN115162090A (en) * | 2022-08-02 | 2022-10-11 | 中国建筑第八工程局有限公司 | Compaction method for asphalt pavement |
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Address after: 226600 No.20, Nanhai Avenue East, Haian Development Zone, Nantong City, Jiangsu Province Applicant after: Jiangsu Zengguang New Material Technology Co., Ltd Address before: 226600 No.20, Nanhai Avenue East, Haian Development Zone, Nantong City, Jiangsu Province Applicant before: JIANGSU ZENGGUANG COMPOSITE TECHNOLOGY Co.,Ltd. |
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