CN108104287B - Concrete structure and the segmentation casting method for utilizing the concrete structure - Google Patents
Concrete structure and the segmentation casting method for utilizing the concrete structure Download PDFInfo
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- CN108104287B CN108104287B CN201810009752.2A CN201810009752A CN108104287B CN 108104287 B CN108104287 B CN 108104287B CN 201810009752 A CN201810009752 A CN 201810009752A CN 108104287 B CN108104287 B CN 108104287B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005266 casting Methods 0.000 title claims abstract description 13
- 230000011218 segmentation Effects 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 75
- 239000002002 slurry Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 11
- 239000004927 clay Substances 0.000 description 5
- 239000011440 grout Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention relates to engineering construction fields, for the weak problem of construction joint attachment force, provide a kind of concrete structure and the segmentation casting method using the concrete structure, its attachment force that construction joint new-old concrete can be improved, the technical solution is as follows: a kind of concrete structure, the concrete structure includes first concrete modular with construction joint, and the first concrete modular is embedded with dismountable first built-in fitting and the second built-in fitting.A kind of segmentation casting method using above-mentioned concrete structure, comprising the following steps: (1) pour the first concrete modular, pre-buried first built-in fitting, the second built-in fitting;(2) template, the first built-in fitting, the second built-in fitting are dismantled;(3) the second concrete modular is poured;(4) concrete slurry overflowed is smoothed out.By forming reserved channel after the first built-in fitting of disassembly and the second built-in fitting on the first concrete modular, so that the second concrete modular part enters in the first concrete modular, attachment force is improved.
Description
Technical field
The present invention relates to engineering construction field, more specifically, it relates to a kind of concrete structure and utilize the concrete
The segmentation casting method of structure.
Background technique
In our daily construction process, due to the influence of the factors such as weather, machinery, it has in building structure
It is stayed on layer and sets construction joint.Construction joint refers in concreting process, because design requirement or construction are needed to be segmented and be poured, and
Formerly, seam is formed by between the concrete of after-pouring.Construction joint is not a kind of " seam " of necessary being, it is only because of elder generation
Casting concrete be more than the presetting period, as soon as and there are a faying face between the concrete of after-pouring, which is referred to as
Construction joint.
Segmentation pours compared with disposable cast-in-place structural, and construction joint brings certain harm to the globality of structure, this is
Since the final set of the first subsurface is poured for the second time on the section Shi Yuan, there are cold seams, and new and old section cohesive force is weakened, drop
The bearing capacity of low structure.
Summary of the invention
In view of the deficienciess of the prior art, the first object of the present invention is to provide a kind of concrete structure, has and apply
The advantages of new-old concrete is completely embedded at work seam.
To achieve the above object, the present invention provides the following technical scheme that
A kind of concrete structure, the concrete structure include first concrete modular with construction joint, and described first is mixed
Solidifying clay model block is embedded with dismountable first built-in fitting and the second built-in fitting, and first built-in fitting one end is stretched out and construction joint
Construction joint is stretched out in adjacent surface, second built-in fitting one end, and first built-in fitting is embedded in the first concrete modular
The end that is embedded in the first concrete modular with the second built-in fitting of end be detachably connected.
By adopting the above technical scheme, pass through dismountable first built-in fitting pre-buried on the first concrete modular and second
Built-in fitting, simultaneously because the surface adjacent with construction joint and second built-in fitting one end are stretched out in first built-in fitting one end stretches out construction
Seam, while the end that the first built-in fitting is embedded in the first concrete modular is embedded in the first concrete modular with the second built-in fitting
End be detachably connected, connection is formed on the first concrete modular after dismantling the first built-in fitting and the second built-in fitting
The reserved channel on construction joint and the surface adjacent with construction joint, so that pouring the second coagulation connecting with the first concrete modular
When clay model block, cement grout enters reserved channel, so that the second concrete modular part enters in the first concrete modular, so that
The attachment force of second concrete modular and the first concrete modular greatly improves, so that the first concrete modular and the second concrete
Module is completely embedded, and improves the stability and intensity of concrete structure, simultaneously because reserved channel connection is adjacent with construction joint
Surface, the concrete slurry of the second concrete modular can overflow after filling reserved channel, to facilitate observation, guarantee concrete grout
Liquid enters the amount in reserved channel, guarantees the effect for improving attachment force.
Preferably, first built-in fitting passes through mating to connect with the second built-in fitting.
By adopting the above technical scheme, since the first built-in fitting and the second built-in fitting are by mating to connect, so that the
After one built-in fitting is connect with the second built-in fitting, guarantee to be connected to by the first built-in fitting with the reserved channel that the second built-in fitting is formed,
It is easy to disassemble simultaneously, it is easily operated.
Preferably, first built-in fitting includes the first pre-buried bar, and the first pre-buried bar is straight-bar and side wall is equipped with
First spiral salient.
By adopting the above technical scheme, since the first pre-buried bar is straight-bar and side wall is equipped with the first spiral salient, so that first
Pre-buried bar forms the reserved channel with spiral groove in the first concrete modular, further increases the second concrete modular
Concrete slurry enters the connection area in the first concrete modular with the first concrete modular, further increases attachment force.
Preferably, second built-in fitting includes the second pre-buried bar, and the second pre-buried bar is straight-bar and side wall is equipped with
Second spiral salient.
By adopting the above technical scheme, since the second pre-buried bar is straight-bar and side wall is equipped with the second spiral salient, so that second
Pre-buried bar forms the reserved channel with spiral groove in the first concrete modular, further increases the second concrete modular
Concrete slurry enters the connection area in the first concrete modular with the first concrete modular, further increases attachment force.
Preferably, the described first pre-buried bar is mutually perpendicular to the second pre-buried bar, is provided on the side wall of the second pre-buried bar
For the mounting hole of the first pre-buried bar grafting.
By adopting the above technical scheme, it is mutually perpendicular to by the first pre-buried bar and the second pre-buried bar, in the first concrete mould
The reserved channel being at right angles arranged is formed in block, so that pouring concrete slurry when the second concrete modular enters the first concrete
It is at right angles distributed after module, so that the first concrete modular and the second concrete modular have stronger connection from multiple directions
Power further increases connective stability.
Preferably, the described second pre-buried bar is vertically arranged with construction joint.
By adopting the above technical scheme, it is vertically arranged due to the second pre-buried bar with construction joint, so that pouring the second concrete mould
When block, part is arranged in parallel with construction joint after concrete slurry enters the first concrete modular, to improve along perpendicular to construction joint
Direction resist the active force that separates with the second concrete modular of the first concrete modular, guarantee to be completely embedded, raising stability.
It preferably, further include the template being close to the construction joint of the first concrete modular, the template is towards construction joint
It is densely covered with protrusion on one side, second built-in fitting runs through template.
By adopting the above technical scheme, by protrusion of gathering in template, so that construction joint is rough surface, and then make
It obtains when the second concrete modular pours and the connection area of construction joint increases, and then improve interface attachment force, improve stability.
In view of the deficienciess of the prior art, the second object of the present invention is to provide a kind of segmentation casting method, have
The advantages of new-old concrete is completely embedded at construction joint.
A kind of segmentation casting method using above-mentioned concrete structure, comprising the following steps:
(1) installation template, pour the first concrete modular, pre-buried first built-in fitting and the second built-in fitting;
Template, the first built-in fitting and the second built-in fitting are dismantled after the initial set of (2) first concrete modulars;
(3) installation template, pour the second concrete modular connecting with the first concrete modular, to concrete slurry towards applying
Work seam pressure is overflowed from the first installation of embedded parts of the first concrete modular to concrete slurry;
(4) concrete slurry for overflowing the first concrete modular smoothes out.
When by adopting the above technical scheme, by pouring the first concrete modular, pre-buried first on the first concrete modular
Built-in fitting and the second built-in fitting, simultaneously because the surface adjacent with construction joint and the second built-in fitting are stretched out in first built-in fitting one end
Construction joint is stretched out in one end, simultaneously because the end that the first built-in fitting is embedded in the first concrete modular is embedded in the second built-in fitting
End in first concrete modular is detachably connected, with after dismantling the first built-in fitting and the second built-in fitting in the first coagulation
The reserved channel on connection construction joint and the surface adjacent with construction joint is formed on clay model block;So that pouring and the first concrete mould
When the second concrete modular of block connection, cement grout enters reserved channel, so that the second concrete modular part enters first
In concrete modular, so that the attachment force of the second concrete modular and the first concrete modular greatly improves, so that the first coagulation
Clay model block is completely embedded with the second concrete modular, improves the stability and intensity of concrete structure;Simultaneously because reserved logical
Road is connected to the surface adjacent with construction joint, and the concrete slurry of the second concrete modular can overflow after filling reserved channel, with side
Just it observes, guarantees that concrete slurry enters the amount in reserved channel, guarantee the effect for improving attachment force, by by the first concrete mould
The concrete slurry that block overflows smoothes out, and pounds the trouble removed after avoiding concrete slurry from solidifying.
Preferably, the first concrete mould bulk strength carries out the step 3 after being greater than 2.5MPa again.
By adopting the above technical scheme, step 3 is being carried out to avoid general after the first concrete mould bulk strength is greater than 2.5MPa
When the concrete slurry of second concrete modular presses towards the first concrete modular, the first concrete modular is led because of intensity deficiency
Damage is caused, guarantees stability.
Preferably, it is added after the step 2, before step 3 and rinses the joint face of concrete at construction joint and keep wet
Moisten and does not stay ponding.
By adopting the above technical scheme, by making to moisten at construction joint, when so that pouring the second concrete modular, concrete grout
Liquid is preferably coupled with construction joint, the attachment force at construction joint is improved, so that the first concrete modular and the second concrete modular
More fit closely.
In conclusion the invention has the following advantages: passing through the first built-in fitting pre-buried on the first concrete modular
And second built-in fitting, it is applied with forming connection on the first concrete modular after dismantling the first built-in fitting and the second built-in fitting
The reserved channel on work seam and the surface adjacent with construction joint;When so that pouring the second concrete modular, the second concrete modular
Part enters in the first concrete modular, attachment force is improved, so that the first concrete modular is connect tightly with the second concrete modular
It is close, improve the stability and intensity of concrete structure;Simultaneously because reserved channel is connected to the surface adjacent with construction joint, so that
Concrete slurry is overflowed in reserved channel, guarantees that concrete slurry enters the amount in reserved channel, guarantees the effect for improving attachment force;It is logical
It crosses the concrete slurry for overflowing the first concrete modular to smooth out, pounds the trouble removed after avoiding concrete slurry from solidifying;By
First concrete mould bulk strength is carrying out step 3 after being greater than 2.5MPa to guarantee that concrete slurry is applied towards the first concrete modular
When pressure, the stability of the first concrete modular;By making to moisten at construction joint, so that concrete slurry preferably joins with construction joint
Knot, more to fit closely.
Detailed description of the invention
Fig. 1 is the overall structure diagram of concrete structure in the present invention;
Fig. 2 is the perspective view of the explosion of concrete structure in the present invention;
Fig. 3 is that casting method technical process figure is segmented in the present invention.
In figure: 1, the first concrete modular;11, construction joint;12, channel is reserved;13, shrinkage pool;2, the first built-in fitting;21,
First pre-buried bar;22, the first spiral salient;3, the second built-in fitting;31, the second pre-buried bar;32, the second spiral salient;33, it installs
Hole;4, template;41, raised.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention will be described in detail.
Embodiment 1
A kind of concrete structure, referring to Fig.1 and Fig. 2, including the first concrete modular 1 with construction joint 11, first
Dismountable first built-in fitting 2 and the second built-in fitting 3 are embedded on concrete modular 1, the first concrete modular 1 is additionally provided with tightly
Paste the template 4 of construction joint 11.
Referring to Fig. 2, the first built-in fitting 2 includes the first pre-buried bar 21, and the first pre-buried bar 21 is straight-bar, the first pre-buried bar 21
The first spiral salient 22 is connected on side wall, the second built-in fitting 3 includes the second pre-buried bar 31, one on the second pre-buried bar 31
It is connected with the second spiral salient 32, the diameter of the diameter of the second pre-buried bar 31 less than the first pre-buried bar 21.
The first concrete mould is inserted into the second pre-buried bar 31 in the end that first pre-buried bar 21 is inserted into the first concrete modular 1
End in block 1 is detachably connected.
The side wall of second pre-buried bar 31 is equipped with mounting hole 33, and mounting hole 33 is inserted into the first concrete close to the second pre-buried bar 31
End in module 1, the end that the first pre-buried bar 21 is inserted into the first concrete modular 1 are plugged on the installation of the second pre-buried bar 31
In hole 33.
The first concrete modular 1 surface adjacent with construction joint 11, the second pre-buried bar are stretched out in one end of first pre-buried bar 21
Construction joint 11 is stretched out in 31 one end, and the first pre-buried bar 21 is mutually perpendicular to the second pre-buried bar 31, and the second pre-buried bar 31 and construction
Seam 11 is vertical.
By the first pre-buried bar 21 of disassembly and the second pre-buried bar 31 to form reserved channel in the first concrete modular 1
12, the surface adjacent with construction joint 11 that reserved channel 12 is connected to construction joint 11 and is pierced by by the first pre-buried bar 21.
First pre-buried bar 21 and the second pre-buried bar 31 have several and are evenly distributed in the horizontal direction several along level to be formed
The uniformly distributed reserved channel 12 in direction.
Protrusion 41 is densely covered in template 4, template 4 forms several densely covered shrinkage pools 13 after dismantling at construction joint 11, and second
Built-in fitting 3 is slidably connected through template 4 with template 4.
By forming reserved channel 12 in the first concrete modular 1, it is close to so as to pour with the first concrete modular 1
When the second concrete modular (not shown), concrete slurry enters reserved channel 12, so that the second concrete modular part
Into in the first concrete modular 1, the attachment force of the second concrete modular and the first concrete modular 1 is improved.
Since the first pre-buried bar 21 and the second pre-buried bar 31 are mutually perpendicular to, and the second pre-buried bar 31 is vertical with construction joint 11,
So that reserved channel 12 includes one section of part parallel with construction joint 11, so that the concrete slurry of the second concrete modular enters
One section of coupling part parallel with construction joint 11 is formed after in first concrete modular 1, greatly improves the first concrete mould
Block 1 and the second concrete modular resist the ability being separated from each other, so that the first concrete modular 1 is connect with the second concrete modular
Closely, it reduces and is endangered caused by existing because of construction joint 11.
Due to forming shrinkage pool 13 at construction joint 11, so that the connection of the first concrete modular 1 and the second concrete modular is made
Increased with area, improves attachment force.
Embodiment 2
A kind of segmentation casting method of the concrete structure of Application Example 1, comprising:
Specific construction step, referring to Fig. 3.
S001 installation template pours the first concrete modular, pre-buried first built-in fitting and the second built-in fitting.
It is required according to construction drawing, installation template, the first built-in fitting and the second built-in fitting end is mating to connect,
Then then the end by the second built-in fitting far from the first built-in fitting pours the first concrete mould through template tentatively to fix
Block adjusts the angle of the second built-in fitting with pre-buried first built-in fitting and the second built-in fitting while pouring, guarantee that second is pre-
Embedded part is vertical with the construction joint of the first concrete modular.
Template, the first built-in fitting and the second built-in fitting are dismantled after S002 the first concrete modular initial set.
The first concrete modular initial set after, form removal, then rotate the first pre-buried bar so that the first pre-buried bar along
The track of first spiral salient screws out, so that the first pre-buried bar is separated with the second pre-buried bar, after splitting out the first pre-buried bar, rotation
Turn the second pre-buried bar so that the second pre-buried bar along the second spiral salient track screw out, by disassembly the first pre-buried bar and
Second pre-buried bar on the first concrete modular there are have spiral groove reserved channel, by template be arranged protrusion with
There are shrinkage pools in the first concrete modular after form removal.
S003 installation template pours the second concrete modular connecting with the first concrete modular, to concrete slurry court
Construction joint presses to be overflowed from the first installation of embedded parts of the first concrete modular to concrete slurry.
It is required according to construction drawing, the template for the second concrete modular being close to the first concrete modular is installed, then
The second concrete modular is poured, is inserted into screw conveyor in the concrete slurry of the second concrete modular, by concrete grout
Liquid presses towards the first concrete modular, so that concrete slurry enters in the reserved channel of the first concrete modular, and always
Pressure can stop pressing after concrete slurry is overflowed on the surface adjacent with the construction joint of the first concrete modular, then right
Concrete slurry carries out tamping processing.
Bleeding cement, film, the loose sandstone, weakness of the construction seam surface of the first concrete modular of removing are also needed before pouring
Concrete layer, greasy dirt etc., avoiding sundries from forming separating interface leads to the first concrete modular and the second concrete modular attachment force
Decline.
After cleaning out, the first concrete modular is rinsed with clear water, so that the construction joint of the first concrete modular keeps wet
Profit, but need to guarantee that the first concrete modular does not stay ponding when pouring, so that the concrete slurry of the second concrete modular and the
One concrete modular more preferably combines.
It also needs to guarantee that the first concrete mould bulk strength is greater than the side 2.5MPa and can construct before pouring, to guarantee to mix second
When the concrete slurry of solidifying clay model block presses towards the first concrete modular, the first concrete modular is resisted with enough intensity
Pressure avoids the first concrete modular of damage.
The concrete slurry that S004 overflows the first concrete modular smoothes out.
Since the concrete slurry of the second concrete modular is depressed into far from the reserved channel in the first concrete modular
One end of construction joint is overflowed, and is needed in time to smooth out the concrete slurry for overflowing part, be solidified to avoid the concrete slurry of spilling,
Lead to the subsequent trouble pounded and removed.
After the solidification of the second concrete modular, the reserved logical of the first concrete modular is connected to by the second concrete modular
Part in road so that the first concrete modular is fitted closely with the second concrete modular, and there is stronger resistance mutually to divide
From ability so that segmentation pour after, the construction joint between the first concrete modular and the second concrete modular is completely embedded, and is subtracted
It is endangered caused by few presence because of construction joint.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of concrete structure, it is characterized in that: the concrete structure includes the first concrete modular with construction joint (11)
(1), first concrete modular (1) is embedded with dismountable first built-in fitting (2) and the second built-in fitting (3), and described
One built-in fitting (2) one end, which is stretched out, stretches out construction joint with construction joint (11) adjacent surface, described second built-in fitting (3) one end
(11), first built-in fitting (2) is embedded in the first concrete modular (1) end and the second built-in fitting (3) are embedded in the
End in one concrete modular (1) is detachably connected;First built-in fitting (2) is matched with the second built-in fitting (3) by grafting
It closes to connect.
2. concrete structure according to claim 1, it is characterized in that: first built-in fitting (2) includes the first pre-buried bar
(21), the described first pre-buried bar (21) is straight-bar and side wall is equipped with the first spiral salient (22).
3. concrete structure according to claim 2, it is characterized in that: second built-in fitting (3) includes the second pre-buried bar
(31), the described second pre-buried bar (31) is straight-bar and side wall is equipped with the second spiral salient (32).
4. concrete structure according to claim 3, it is characterized in that: the first pre-buried bar (21) and the second pre-buried bar
(31) it is mutually perpendicular to, the mounting hole (33) for the first pre-buried bar (21) grafting is provided on the side wall of the second pre-buried bar (31).
5. concrete structure according to claim 4, it is characterized in that: the second pre-buried bar (31) and construction joint (11) are hung down
Straight setting.
6. concrete structure according to claim 1, it is characterized in that: further including the construction with the first concrete modular (1)
The template (4) that (11) are close to is stitched, the template (4) is densely covered with raised (41) on one side towards construction joint (11), and described second is pre-
Embedded part (3) runs through template (4).
7. a kind of segmentation casting method using any concrete structure of claim 1-6, it is characterized in that: including following
Step:
(1) installation template, pour the first concrete modular, pre-buried first built-in fitting and the second built-in fitting;
Template, the first built-in fitting and the second built-in fitting are dismantled after the initial set of (2) first concrete modulars;
(3) installation template, pour the second concrete modular connecting with the first concrete modular, to concrete slurry towards construction joint
Pressure is overflowed from the first installation of embedded parts of the first concrete modular to concrete slurry;
(4) concrete slurry for overflowing the first concrete modular smoothes out.
8. segmentation casting method according to claim 7, it is characterized in that: after the first concrete mould bulk strength is greater than 2.5MPa
Step (3) are carried out again.
9. segmentation casting method according to claim 7, it is characterized in that: adding after step (2), before step (3)
Enter to rinse the joint face of concrete at construction joint and keeps wet and do not stay ponding.
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CN111173128B (en) * | 2020-02-25 | 2020-09-04 | 江苏丰阳建设工程有限公司 | Concrete structure applied to segmental casting method |
CN112497426A (en) * | 2020-11-17 | 2021-03-16 | 台州和源建设有限公司 | Pouring method of building concrete floor |
CN114809632A (en) * | 2022-03-28 | 2022-07-29 | 中国建筑第四工程局有限公司 | Upright post construction method |
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CN101503872B (en) * | 2009-03-09 | 2010-12-29 | 天津市建工工程总承包有限公司 | Reservation method for ultra-long concrete ground construction joint |
CN105735364B (en) * | 2016-03-03 | 2017-12-26 | 上海东方雨虹防水工程有限公司 | Concrete joint waterproof system, construction method and the protection component for the system |
CN206144184U (en) * | 2016-09-26 | 2017-05-03 | 中建八局第四建设有限公司 | Construction joint built -in slip casting pipe |
CN107542170A (en) * | 2016-12-22 | 2018-01-05 | 深圳建业工程集团股份有限公司 | A kind of cast in situ ferroconcrete wall or beam construction joint surface construction method |
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