CN110258338A - A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method - Google Patents
A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method Download PDFInfo
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- CN110258338A CN110258338A CN201910482736.XA CN201910482736A CN110258338A CN 110258338 A CN110258338 A CN 110258338A CN 201910482736 A CN201910482736 A CN 201910482736A CN 110258338 A CN110258338 A CN 110258338A
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- Prior art keywords
- ultra
- high performance
- hopper
- performance concrete
- material distributing
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 45
- 239000004035 construction material Substances 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 27
- 239000004567 concrete Substances 0.000 claims description 15
- 238000007790 scraping Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000003447 ipsilateral effect Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 abstract description 13
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- 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
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
- E01C19/187—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect solely for spreading-out or striking-off deposited mixtures, e.g. spread-out screws, strike-off boards
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction methods, are related to Roadway Construction equipment technical field.The device includes hopper component, scrapes and adjust component and walking component, the hopper component includes at least one bottomless hopper, described scrape adjusts component to scrape tuned plate including at least two regulating parts and at least one, two regulating parts are respectively arranged on the side of the bottomless hopper, the bottom scraped tuned plate and be set to the bottomless hopper, the walking component includes the walking beam for being respectively arranged on hopper component two sides, is equipped at least two traveling wheels on each walking beam.A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method provided by the invention, solve the problems, such as that previous cloth is irregular, of simple structure and strong practicability.
Description
Technical field
The present invention relates to Roadway Construction equipment technical fields, and in particular to a kind of ultra-high performance concrete Roadway Construction cloth
Material machine and its construction method.
Background technique
Ultra-high performance concrete is compound as the cement base of a kind of mechanical property with superelevation and the endurance quality of superelevation
Material after researching and developing successfully from 1993, just causes great interest and the great attention of bridge circle.In science of bridge building, superelevation
It is multiple that performance concrete has been applied to main beam structure, arch bridge main arch, wafer board bridge deck structure, joint of bridge and old bridge reinforcement etc.
The construction of aspect, especially in recent years, ultra-high performance concrete are widely used in orthotropic plate combined bridge deck,
Can advantageous solution orthotropic plate fatigue cracking, asphalt paving of steel bridge layer it is frequently damaged the problems such as, answered on bridge construction
With more and more extensive.
Currently, scholar both domestic and external is mainly keen to study ultra-high performance concrete material, and to very-high performance
The research of concrete bridge deck construction machinery is then relatively fewer.Ultra-high performance concrete is with viscosity is big, the ratio of mud is small, steel fibre contains
It measures the features such as high, therefore, moves, scrapes so that it is difficult to shovel during paving, causing the laying equipment of normal concrete equal
It is unable to satisfy the requirement of its construction.Ultra-high performance concrete bridge floor paves at present mainly based on Manual, but Manual
When, universal cloth is uneven, and production efficiency is low, and construction quality is difficult to be protected, time-consuming and laborious.Also there is minority in the country at present
Producer produces ultra-high performance concrete material distributing machine, but cloth effect is not satisfactory, and problem is mainly held during paving
Easily occur plugging, bridge floor cloth is uneven etc., therefore researches and develops a kind of cloth uniformly and be not easy the ultra-high performance concrete cloth of plugging
Material machine is very necessary.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of ultra-high performance concrete bridge floors to apply
Work material distributing machine and its construction method solve the problems, such as that previous cloth is irregular, and structure is simple.
To achieve the above objectives, the technical solution adopted by the present invention is that:
Hopper component comprising at least one bottomless hopper；
Scrape tune component comprising at least two regulating parts and at least one scrape tuned plate, and two regulating parts are respectively arranged on institute
State the side of bottomless hopper, the bottom scraped tuned plate and be set to the bottomless hopper；
Walking component comprising be respectively arranged on the walking beam of hopper component two sides, be all provided on each walking beam
There are at least two traveling wheels, one end of the regulating part is connected with its ipsilateral described walking beam.
Based on the above technical solution, the bottomless hopper includes feed inlet at the top of it and is located at its bottom
Discharge port, the width of the feed inlet is greater than the width of the discharge port.
Based on the above technical solution, the hopper component includes the bottomless hopper that more piece is sequentially connected, often
The bottom of the one bottomless hopper, which is equipped with, at least scrapes tuned plate described in one, and the length for scraping tuned plate and the bottomless hopper
The length of discharge port is identical.
Based on the above technical solution, fixation is bolted between the adjacent bottomless hopper, it is adjacent
Fixation is bolted in described scrape between tuned plate.
Based on the above technical solution, the bottomless hopper bottom symmetrical, which is set, scrapes tuned plate there are two described, described to scrape
Tuned plate is parallel with the bottomless hopper.
Based on the above technical solution, an at least vibrator is equipped on the lateral surface of each bottomless hopper.
Based on the above technical solution, the regulating part is hydraulic jack.
Based on the above technical solution, symmetrical operation platform there are two being set on the feed inlet.
Based on the above technical solution, the top sides of the feed inlet are along equipped with perpendicular to the operation platform
Protective fence.
A kind of construction method of ultra-high performance concrete Roadway Construction material distributing machine, step packet can also be provided in the present invention
It includes:
The height that tuned plate is scraped by regulating part adjustment, after height is fixed, injection very-high performance is mixed in the bottomless hopper
Solidifying soil, while traveling wheel is driven, it moves ultra-high performance concrete Roadway Construction along the length direction of bridge floor with material distributing machine, is moving
In dynamic process, the tuned plate of scraping strikes off the ultra-high performance concrete for falling within the bridge floor.
Compared with the prior art, the advantages of the present invention are as follows:
(1) a kind of ultra-high performance concrete Roadway Construction material distributing machine provided by the invention comprising hopper component scrapes tune
Component and walking component, hopper component include at least one bottomless hopper, and the number of bottomless hopper can be according in actual use
Depending on bridge deck width, therefore this material distributing machine is applicable to the bridge deck concrete laying of a variety of different in width；Secondly, bottomless hopper
Cabinet is arranged to oblique form wide at the top and narrow at the bottom, makes during cloth, right due to the gravity of ultra-high performance concrete itself
Ultra-high performance concrete positioned at bottom applies certain pressure, facilitates discharging；In addition, regulating part, that is, hydraulic jack can be with
When according to the demand of cloth laying depth, adjust the height of bottomless hopper to achieve the purpose that adjust and scrape tuned plate, can arbitrarily adjust
The thickness of laying, easy to adjust, structure is simple and facilitates operation, reduces artificial dosage, to improve working efficiency, guarantees
The quality being laid with.
(2) a kind of ultra-high performance concrete Roadway Construction material distributing machine provided by the invention, further includes vibrator, vibrates
Device is arranged on the lateral surface of bottomless hopper, during laying, starts vibrator, can effectively avoid very-high performance mixed
The problem of blocking or viscous wall occur in bottomless hopper for soil is coagulated, guarantees that concrete is smoothly drawn off from discharge port, guarantees laying
Quality and efficiency.
Detailed description of the invention
Fig. 1 is the side diagram of the ultra-high performance concrete Roadway Construction material distributing machine in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the ultra-high performance concrete Roadway Construction material distributing machine in the embodiment of the present invention；
Fig. 3 is the A-A of the structural schematic diagram of the ultra-high performance concrete Roadway Construction material distributing machine in the embodiment of the present invention
The cross-sectional view at place.
In figure: the bottomless hopper of 1-, 2- walking component, 20- walking beam, 21- traveling wheel, 30- regulating part, 31- scrape tuned plate, 4-
Vibrator, 5- operation platform, 6- track.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Referring to shown in Fig. 1-Fig. 2, the embodiment of the invention provides a kind of ultra-high performance concrete Roadway Construction material distributing machine,
It includes hopper component, scrapes and adjust component and walking component 2, wherein hopper component includes at least one bottomless hopper 1, bottomless hopper 1
For loading and unloading ultra-high performance concrete；Scraping and adjusting component includes that at least two regulating parts 30 and at least one scrape tuned plate 31, two adjustings
Part 30 is respectively arranged on the side of bottomless hopper 1, scrapes the bottom that tuned plate 31 is set to bottomless hopper 1, and regulating part 30 is mainly used for adjusting
The height of bottomless hopper 1 enables super according to actual demand control when cloth is laid with to adjust the height for scraping tuned plate 31
The laying depth of high performance concrete, controllability is strong, easy to adjust；Walking component 2 includes being respectively arranged on 1 component two sides of hopper
Walking beam 20 is equipped at least two traveling wheels 21, one end of regulating part 30 and the walking ipsilateral with it on each walking beam 20
Beam 20 is connected.
Specifically, can carry out to arrange the row of material distributing machine by actual demand in advance on the bridge floor of required laying before laying
Track 6 is walked, to guarantee good movement of material distributing machine during laying.The both ends of material distributing machine are equipped with walking beam 20, walking
Beam 20 primarily serves the effect of load and connection, to guarantee integrally-built stabilization, is equipped at least two on each walking beam 20
A traveling wheel 21, traveling wheel 21 here are rotated by motor driven, realize the movement of material distributing machine.It further, can by motor
To control the velocity of rotation of traveling wheel 21, so that controllability is strong according to the speed that actual construction demand control is laid with, in addition,
Since general bridge floor is all wider, the volume of material distributing machine entirety is larger, and weight is also heavier, therefore, in order to guarantee material distributing machine
Stability in traveling process is equipped with multiple traveling wheels 21 on each walking beam 20, can according to practical situation and demand,
Increase the laying of traveling wheel 21.
Shown in Figure 1, bottomless hopper 1 specifically includes the feed inlet at the top of it and the discharge port positioned at its bottom,
Wherein, the width of feed inlet is greater than the width of discharge port, and therefore, bottomless hopper 1 trapezoidal shape with a narrow upper and lower width sets feed inlet
The larger charging for facilitating ultra-high performance concrete is set, discharge port setting is smaller, be conducive to control very-high performance in process of deployment
The thickness of concrete.In addition, the cabinet of bottomless hopper 1 is arranged to oblique form wide at the top and narrow at the bottom, make during cloth, by
In the gravity of ultra-high performance concrete itself, certain pressure can be applied to the ultra-high performance concrete for being located at bottom, conveniently gone out
Material avoids concrete from resulting in blockage in the inside of bottomless hopper 1 and influences the quality and efficiency that are laid with.
Referring to shown in Fig. 1-Fig. 2, hopper component includes the bottomless hopper 1 that more piece is sequentially connected, the bottom of each bottomless hopper 1
Portion is equipped at least one and scrapes tuned plate 31, and the length for scraping tuned plate 31 is identical as the length of discharge port of bottomless hopper 1.Due to general
Bridge floor has certain width, and the bottomless hopper 1 of each section is when manufacture, general finite volume, and volume is excessive also can
Transport difficult is caused, hopper component includes the bottomless hopper 1 that more piece is sequentially connected here, can root during being actually laid with
The quantity of bottomless hopper 1, flexible structure are determined according to the width of the bridge floor of required laying.Similarly, tuned plate 31 is scraped in production process
In can also encounter same problem, in order to corresponding with bottomless hopper 1, be equipped at least in the bottom of each bottomless hopper 1 here
One scrapes tuned plate 31, and the length for scraping tuned plate 31 is identical as the length of discharge port of bottomless hopper 1, guarantee to unload from discharge port from it is mixed
Solidifying body scrape tuned plate 31 scrape adjust range in.In addition, fixation is bolted between adjacent bottomless hopper 1, it is adjacent
It scrapes and fixation is bolted between tuned plate 31, facilitate connection disassembling, it is structurally reasonable.
Referring to shown in Fig. 1-Fig. 2, in order to guarantee the ultra-high performance concrete that discharge port is drawn off carry out it is good scrape tune,
And the thickness of laying is accurately controlled, tune is scraped there are two tuned plate 31 is scraped in the bottom symmetrical setting of each bottomless hopper 1 here
Plate 31 is parallel with bottomless hopper 1, scrape tuned plate 31 be arranged in bottomless hopper 1 bottom discharge port length direction edge on, with
It prevents from the concrete drawn off from discharge port from just falling in front of declining to bridge floor to scrape on tuned plate 31, and influences the quality and effect that are laid with
Rate.Ipsilateral adjacent scrape is interconnected and fixed between tuned plate 31, is formed and scrapes tune component with wide substantially with laying bridge floor, to ensure
The process of laying can be gone on smoothly.
Referring to fig. 2 shown in-Fig. 3, an at least vibrator 4 is equipped on the lateral surface of each bottomless hopper 1, compared to existing
Material distributing machine the problem of plugging or viscous wall easily occurs start vibrator 4 during laying, vibrator 4 i.e. by vibration just
Can effectively avoid the problem that ultra-high performance concrete occur in bottomless hopper 1 blocking or viscous wall, guarantee concrete from
Discharge port is smoothly drawn off, and guarantees the quality and efficiency being laid with.Wherein, vibrator 4 is arranged on the inclined surface of bottomless hopper 1, whole
Vibrator 4 in a material distributing machine is spaced apart, and specific quantity is depending on the developed width of bridge floor.
Further, regulating part 30 is hydraulic jack, and one end is connected and fixed with the bottomless hopper 1 for being located at end, one
End is fixed on ipsilateral walking beam 20, and is impetus with walking beam 20, to adjust the height of hopper component, to realize
The adjusting of laying depth.
Further, due to during laying, it may be necessary to the operation of construction personnel or the disengaging for monitoring concrete
Therefore the case where material, is provided along its length two symmetrical operation platforms 5, and the top sides of feed inlet on feed inlet
Along the protective fence being equipped with perpendicular to operation platform 5, guarantee also to protect while concrete is not spilt in fill process to bridge floor
The safety of construction personnel is hindered.
The action principle of ultra-high performance concrete Roadway Construction material distributing machine are as follows:
According to the width for the bridge floor for being actually subjected to be laid with, material distributing machine includes multiple sequentially connected bottomless hoppers 1 and same
What is be correspondingly connected with scrapes tuned plate 31, positioned at material distributing machine both ends bottomless hopper 1 side be equipped with regulating part 30,30 one end of regulating part with
Bottomless hopper 1 connects, and one end is connect with walking beam 20, and the height for adjusting bottomless hopper 1 so that walking beam 20 is impetus, from
And the height for scraping tuned plate 31 is adjusted, to achieve the purpose that control laying depth.Bottomless hopper 1 is set using inclined surface wide at the top and narrow at the bottom
It sets, facilitates concrete and drawn off from the discharge port of bottom, while being equipped with vibrator 4 on the lateral surface of bottomless hopper 1, prevent from mixing
Blocking or viscous wall occur in bottomless hopper 1 for solidifying soil.Traveling wheel 21 on walking beam 20 under the drive of the motor according to
The speed driving material distributing machine of setting is mobile.
The invention also includes a kind of construction method of ultra-high performance concrete Roadway Construction material distributing machine, step includes:
Before being actually laid with, the developed width for first measuring the bridge floor of being laid with determines cloth according to the developed width of bridge floor
The width of machine, i.e., the bottomless hopper 1 of determining material distributing machine and the corresponding quantity for scraping tuned plate 31, as requested by bottomless 1 He of hopper
Corresponding tuned plate 31 of scraping is sequentially connected by connectors such as bolts, is assembled into and is met the material distributing machine to be gone of laying.Then required
The track 6 of design route is laid on the bridge floor two sides of laying, thickness of the height of middle orbit 6 also with actually required laying has
It closes, because itself resulting in material distributing machine and bridge floor to there is certain altitude distance when traveling wheel 21 is placed on track 6.Then again
The traveling wheel 21 of material distributing machine two sides is placed on track 6, the thickness being laid with as needed scrapes tuned plate by regulating part 30 to adjust
31 with a distance from bridge floor, can start to be laid with after adjusting.
When being laid with, ultra-high performance concrete is injected in discharge port, starts vibrator 4 and traveling wheel 21 is driven to rotate
Motor is moved along material distributing machine along the length direction of bridge floor according to the speed of design, scrapes tuned plate 31 in the process of moving i.e.
It can strike off and unload in the height of the concrete of bridge floor, while vibrator 4 vibrates, concrete is promoted to draw off and prevent from discharge port to glue
Wall, whole process high degree of automation are laid with compared to artificial, and time saving and energy saving, whole process is quality controllable, is laid with high-efficient.
The present invention is not only limited to above-mentioned preferred forms, anyone can show that other are each under the inspiration of the present invention
The product of kind form, however, make any variation in its shape or structure, it is all with identical or similar with the present invention
Technical solution, within its protection scope.
Claims (10)
1. a kind of ultra-high performance concrete Roadway Construction material distributing machine, characterized in that it comprises:
Hopper component comprising at least one bottomless hopper (1)；
Scrape tune component comprising at least two regulating parts (30) and at least one are scraped tuned plate (31), two regulating parts (30) point
Not She Yu the bottomless hopper (1) side, it is described scrape tuned plate (31) be set to the bottomless hopper (1) bottom；
It walks component (2) comprising be respectively arranged on the walking beam (20) of the hopper (1) component two sides, each walking beam
(20) it is equipped at least two traveling wheels (21), one end of the regulating part (30) and the walking beam (20) ipsilateral with it
It is connected.
2. a kind of ultra-high performance concrete Roadway Construction material distributing machine as described in claim 1, it is characterised in that: described bottomless
Hopper (1) includes the feed inlet at the top of it and the discharge port positioned at its bottom, and the width of the feed inlet goes out greater than described in
The width of material mouth.
3. a kind of ultra-high performance concrete Roadway Construction material distributing machine as described in claim 1, it is characterised in that: the hopper
Component includes the bottomless hopper (1) that more piece is sequentially connected, and the bottom of each bottomless hopper (1) is equipped at least one institute
It states and scrapes tuned plate (31), and the length for scraping tuned plate (31) is identical as the length of discharge port of the bottomless hopper (1).
4. a kind of ultra-high performance concrete Roadway Construction material distributing machine as claimed in claim 3, it is characterised in that: adjacent institute
It states and fixation is bolted between bottomless hopper (1), fixation is bolted between tuned plate (31) in adjacent described scrape.
5. a kind of ultra-high performance concrete Roadway Construction material distributing machine as claimed in claim 4, it is characterised in that: described bottomless
Hopper (1) bottom symmetrical is set to be scraped tuned plate (31) there are two described, and described to scrape tuned plate (31) parallel with bottomless hopper (1).
6. a kind of ultra-high performance concrete Roadway Construction material distributing machine as described in claim 1, it is characterised in that: each described
An at least vibrator (4) is equipped on the lateral surface of bottomless hopper (1).
7. a kind of ultra-high performance concrete Roadway Construction material distributing machine as described in claim 1, it is characterised in that: the adjusting
Part (30) is hydraulic jack.
8. a kind of ultra-high performance concrete Roadway Construction material distributing machine as claimed in claim 2, it is characterised in that: the charging
There are two being set on mouthful symmetrical operation platform (5).
9. a kind of ultra-high performance concrete Roadway Construction material distributing machine as claimed in claim 8, it is characterised in that: the charging
The top sides of mouth are along the protective fence being equipped with perpendicular to the operation platform (5).
10. a kind of construction method of ultra-high performance concrete Roadway Construction material distributing machine as described in claim 1, feature exist
In step includes:
The height that tuned plate (31) are scraped by regulating part (30) adjustment after height is fixed, injects superelevation in the bottomless hopper (1)
Performance concrete, while traveling wheel (21) are driven, make ultra-high performance concrete Roadway Construction material distributing machine along the length side of bridge floor
To movement, in the process of moving, the tuned plate (31) of scraping strikes off the ultra-high performance concrete for falling within the bridge floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482736.XA CN110258338A (en) | 2019-06-04 | 2019-06-04 | A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482736.XA CN110258338A (en) | 2019-06-04 | 2019-06-04 | A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method |
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| CN110258338A true CN110258338A (en) | 2019-09-20 |
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| CN201910482736.XA Pending CN110258338A (en) | 2019-06-04 | 2019-06-04 | A kind of ultra-high performance concrete Roadway Construction material distributing machine and its construction method |
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| CN110983990A (en) * | 2019-12-31 | 2020-04-10 | 四川交投建设工程股份有限公司 | Construction method for paving composite strong bridge deck |
| CN111236016A (en) * | 2020-01-07 | 2020-06-05 | 山东大学 | Ultrahigh-toughness cement-based composite material leveling texture all-in-one machine for road engineering and working method thereof |
| CN112127278A (en) * | 2020-09-15 | 2020-12-25 | 江苏港通路桥集团有限公司 | Cast-in-place box girder surface treatment construction equipment |
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| CN112127278A (en) * | 2020-09-15 | 2020-12-25 | 江苏港通路桥集团有限公司 | Cast-in-place box girder surface treatment construction equipment |
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