CN115030510A - Construction method for improving pouring quality of self-compacting concrete of CL board wall - Google Patents
Construction method for improving pouring quality of self-compacting concrete of CL board wall Download PDFInfo
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- CN115030510A CN115030510A CN202210741949.1A CN202210741949A CN115030510A CN 115030510 A CN115030510 A CN 115030510A CN 202210741949 A CN202210741949 A CN 202210741949A CN 115030510 A CN115030510 A CN 115030510A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 239000011376 self-consolidating concrete Substances 0.000 title claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 abstract description 3
- 206010063659 Aversion Diseases 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 239000010410 layer Substances 0.000 description 7
- 238000005056 compaction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a construction method for improving the pouring quality of self-compacting concrete of a CL board wall, which comprises the following steps: manufacturing a template; pouring concrete; carrying out an exhaust operation; carrying out plugging operation; continuously pouring concrete, and repeating the steps; and (5) removing the template and carrying out concrete curing. The invention effectively solves the problems of construction quality, increased cost and labor cost and potential safety hazard in the prior art, and eliminates bubbles generated in the process of pouring self-compacting concrete by reserving vent holes at corresponding positions of the formwork in the process of supporting the CL board wall formwork and then determining the pouring sequence and matching with an auxiliary vibrating method, and the vent holes are blocked and continuously poured by a device for blocking the reserved vent holes. The problem of CL siding wall surface crack and easy aversion is solved, reduce the secondary treatment construction, reduce expense and cost of labor improve construction quality and security.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a construction method for improving the pouring quality of self-compacting concrete of a CL board wall.
Background
CL integration heated board presss from both sides behind the heated board by two-layer steel wire welding net with the rack that the three-dimensional oblique steel wire welding formed, together with major structure wall post reinforcement, prop up the wall body that forms in an organic whole that holds in force concurrently, keeps warm after establishing template concreting, forms after the inside and outside both sides concreting, and the outside is self-compaction concrete, and the inboard is ordinary concrete. CL plates are generally formed in a factory. The concrete layer tightly wraps and seals the heat-insulating layer, and the long-term protection effect is achieved.
Because CL siding wall leans on the oblique web muscle to fix, the vibrations stick can't stretch into in the wall, leads to unable adoption ordinary concrete to pour, can only adopt self-compaction concrete placement. Because the self-compacting concrete is in a flowing state and has large slump, slurry leakage can occur along the joint of the template and the joint of the upper layer and the lower layer in the pouring process, so that the slurry leakage of the lower layer of the outer wall surface is serious after pouring. On the other hand, the self-compacting concrete does not use a vibration rod, so that the gas cannot be completely discharged, and the poured outer wall surface forms a large-area honeycomb pitted surface, a cavity and the like. And secondary treatment is needed in the later period, so that the cost is increased, and the potential safety hazard during the secondary treatment is increased.
At present, some projects under construction adopt a method of hanging a flat plate vibrator on the outer surface of a formwork to vibrate aiming at the problem of complaint. Because there is not the coarse aggregate of big particle diameter in the self-compaction concrete, and the aggregate of self-compaction concrete sinks after the vibration, causes the well upper portion aggregate of wall less, because of heated board outside concrete thickness only is 5cm, and is thinner, leads to pouring the completion after, the surface of CL outer wall forms great crack easily. Rainwater (especially in an offshore area with high salt content of rainwater) enters the wall body through the crack and corrodes the reinforcing steel bars of the CL wallboard.
In addition, the plastic fixing buckle of the CL board wall is inaccurate in positioning and is not firmly connected with the shear wall, so that the CL board wall is easy to displace due to the influence of lateral pressure, buoyancy and the like during pouring in the concrete pouring process, only one layer of laitance is arranged on the outer surface of the local CL board wall after the concrete pouring is finished, a protective layer is not arranged, and even the reinforcing mesh is directly exposed outside.
In summary, the problems of the prior art are:
(1) the outer surface of the CL board wall is easy to form large cracks and is easy to be invaded by rainwater, so that the steel bar is corroded, and the construction quality problem is caused;
(2) CL board walls are easy to displace, and a protective layer is lacked after concrete pouring is finished, so that the construction quality and the safety are caused;
(3) the outer wall surface needs to be subjected to secondary treatment after pouring, so that the cost and labor cost are increased, and potential safety hazards are caused.
Disclosure of Invention
The invention aims to solve the problems that (1) in the prior art, large cracks are easily formed on the outer surface of a CL board wall, the CL board wall is easily invaded by rainwater, the reinforcing steel bar is corroded, and the construction quality problem is caused; (2) the CL board wall is easy to shift, and a protective layer is lacked after concrete pouring is finished, so that the construction quality and safety problems are caused; (3) the invention provides a construction method for improving the pouring quality of self-compacting concrete of a CL board wall, which solves the problems that after pouring, the outer wall surface needs to be subjected to secondary treatment, the cost and the labor cost are increased, and potential safety hazards are caused. By the construction method, the problem that the outer wall surface forms a large-area honeycomb pitted surface and a cavity after pouring due to the fact that gas cannot be completely removed is solved, the problems that cracks and displacement are easy to occur on the outer surface of the CL board wall are solved, secondary treatment construction is reduced, cost and labor cost are reduced, and construction quality and safety are improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
a construction method for improving the pouring quality of self-compacting concrete of a CL board wall comprises the following steps:
manufacturing a template;
pouring concrete;
carrying out an exhaust operation;
carrying out plugging operation;
continuously pouring concrete, and repeating the steps;
and (5) removing the template and carrying out concrete curing.
And (5) pouring construction is carried out, and after the construction is finished, mold plugging is carried out.
Further, before the step of making the template, the method also comprises the following steps: and reserving exhaust holes in the pouring wall body.
Furthermore, the exhaust hole is located in the middle of the pouring wall body.
Further, in the concrete pouring step, the height difference of the concrete grout surfaces on the two sides is less than 400 mm.
Further, in the step of performing the air discharging operation, air is discharged by using a hammer tamping method.
Further, in the step of performing the plugging operation, the diameter of the plugging device is larger than that of the vent hole.
Further, the diameter difference between the diameter of the plugging device and the diameter of the vent hole is 1 cm.
The invention discloses a construction method for improving the pouring quality of self-compacting concrete of a CL board wall, which is characterized in that vent holes are reserved at corresponding positions of a template in the supporting process of the CL board wall template, then the pouring sequence is determined and an auxiliary vibrating method is matched, bubbles generated in the pouring process of the self-compacting concrete are eliminated, and the vent holes are blocked by a device for blocking the reserved vent holes for continuous pouring. By the construction method, the problem that the outer wall surface forms a large-area honeycomb pitted surface and a cavity after pouring due to the fact that gas cannot be completely removed is solved, the problems that cracks and displacement are easy to occur on the outer surface of the CL board wall are solved, secondary treatment construction is reduced, cost and labor cost are reduced, and construction quality and safety are improved.
According to the invention, through exhaust matching with CL board wall self-compacting concrete pouring construction, the quality problems that gas cannot be completely discharged due to the fact that the self-compacting concrete does not use a vibration rod, and a large-area honeycomb pitted surface and a cavity are formed on the outer wall surface after pouring are solved, the CL board wall self-compacting concrete pouring construction quality is improved, the construction is simple, the operation is convenient, and the construction period is saved.
Drawings
FIG. 1 is a schematic illustration of concrete placement locations and sequence according to one embodiment of the present invention;
FIG. 2 is a schematic view of a vent blocking device according to an embodiment of the present invention;
fig. 3 is a schematic view of the installation of the vent hole plugging device according to an embodiment of the present invention.
In the figure: 1-a first steel plate, 2-a second steel plate, 3-a connecting section, 4-a fixing bolt and 5-an exhaust hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to fig. 3, an embodiment of the present invention provides a construction method for improving a pouring quality of a self-compacting concrete of a CL panel wall, including the steps of:
manufacturing a template;
pouring concrete;
carrying out an exhaust operation;
carrying out plugging operation;
continuously pouring concrete, and repeating the steps;
and (5) removing the template and carrying out concrete curing.
Specifically, A, B, C, D in fig. 1 is the casting sequence. And pouring according to the sequence of A-D.
Specifically, the plugging device is manufactured before the template is manufactured, and the plugging device is formed by combining a first steel plate 1, a second steel plate 2, a connecting section 3 and a fixing bolt 4. The first steel plate 1 is a steel plate with the thickness of 1mm, the height of 10cm and the width of 8 cm; the second steel plate 2 is a steel plate with the thickness of 1mm, the height of 10cm and the width of 4 cm; the second steel plate 2 is stretched through the connecting section 3, so that the second steel plate can conveniently go deep into the inner side of the template from the outer side and is fixed; the length of the fixing bolt 4 is 10cm, and the fixing bolt is used for fixing when the exhaust hole 5 is plugged.
Specifically, the method further comprises the following steps before the step of manufacturing the template: and an exhaust hole 5 is reserved in the pouring wall body.
Preferably, the vent 5 is located in the middle of the cast wall.
Preferably, the size of the vent 5 is 10cm x 8 cm.
Preferably, in the concrete pouring step, the height difference of the concrete grout surfaces on the two sides is less than 400 mm.
Specifically, in the step of performing the air discharging operation, air is discharged by using a hammer tamping method. Specifically, during air exhaust, the leather hammer vibrates from bottom to top along with the pouring of concrete, vibration is assisted, and air is exhausted as soon as possible.
Specifically, in the step of performing the plugging operation, the diameter of the plugging device is larger than the diameter of the vent hole 5.
Preferably, the diameter of the blocking means differs from the diameter of the vent 5 by 1 cm.
Specifically, when concrete is poured to the position of the exhaust hole 5, the exhaust hole blocking device is used for blocking, and the second steel plate 2 is stretched to the position of the first steel plate 1 to enable the length to be 8cm and the height to be 10 cm. And (4) holding a fixing bolt 4 by hand, stretching into the inner side of the wood board from the outer side of the template for plugging, stretching the second steel plate 2 after stretching into the template, wherein the relative distance of the bolt position is 12cm, and the bolt position is consistent with the bolt fixing position on the template. The fixing position of the fixing bolt 4 is shown in fig. 3, and the fixing bolt 4 is tightened to be fixed. After the plugging device is unfolded, the diameters of the periphery of the plugging device are larger than the diameters of the exhaust holes 5, the difference value is 1cm, and concrete pouring leakage is prevented.
The invention has the advantages and beneficial effects that:
the invention discloses a construction method for improving the pouring quality of self-compacting concrete of a CL board wall. By the construction method, the problem that the outer wall surface forms a large-area honeycomb pitted surface and a cavity after pouring due to the fact that gas cannot be completely removed is solved, the problems that cracks and displacement are easy to occur on the outer surface of the CL board wall are solved, secondary treatment construction is reduced, cost and labor cost are reduced, and construction quality and safety are improved.
According to the invention, through exhaust matching with CL board wall self-compacting concrete pouring construction, the quality problems that gas cannot be completely discharged due to the fact that the self-compacting concrete does not use a vibration rod, and a large-area honeycomb pitted surface and a cavity are formed on the outer wall surface after pouring are solved, the CL board wall self-compacting concrete pouring construction quality is improved, the construction is simple, the operation is convenient, and the construction period is saved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.
Claims (7)
1. A construction method for improving the pouring quality of self-compacting concrete of a CL board wall is characterized by comprising the following steps:
manufacturing a template;
pouring concrete;
carrying out an exhaust operation;
carrying out plugging operation;
continuously pouring concrete, and repeating the steps;
and (5) removing the template and carrying out concrete curing.
2. The method for improving the pouring quality of the self-compacting concrete of the CL board wall according to claim 1, wherein the method comprises the following steps:
before the step of manufacturing the template, the method also comprises the following steps: and reserving exhaust holes in the pouring wall body.
3. The method for improving the pouring quality of the self-compacting concrete of the CL board wall according to claim 2, wherein the method comprises the following steps:
the exhaust hole is located in the middle of the pouring wall body.
4. The method for improving the pouring quality of the self-compacting concrete of the CL board wall according to claim 1, wherein the method comprises the following steps:
in the concrete pouring step, the height difference of the concrete grout surfaces on the two sides is less than 400 mm.
5. The method for improving the pouring quality of the self-compacting concrete for the CL board wall as claimed in claim 1, wherein the method comprises the following steps:
in the step of performing the air discharging operation, air is discharged by using a leather hammer tamping mode.
6. The method for improving the pouring quality of the self-compacting concrete for the CL board wall according to any one of claims 2 to 5, wherein the method comprises the following steps:
in the step of plugging operation, the diameter of the plugging device is larger than that of the vent hole.
7. The method for improving the pouring quality of the self-compacting concrete of the CL board wall as claimed in claim 6, wherein the method comprises the following steps:
the diameter difference between the plugging device and the vent hole is 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741949.1A CN115030510A (en) | 2022-06-28 | 2022-06-28 | Construction method for improving pouring quality of self-compacting concrete of CL board wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741949.1A CN115030510A (en) | 2022-06-28 | 2022-06-28 | Construction method for improving pouring quality of self-compacting concrete of CL board wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115030510A true CN115030510A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210741949.1A Pending CN115030510A (en) | 2022-06-28 | 2022-06-28 | Construction method for improving pouring quality of self-compacting concrete of CL board wall |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2221119C1 (en) * | 2002-07-17 | 2004-01-10 | Баширов Хамит Закирович | Laminated panel of ventilated wall fence |
| CN108505644A (en) * | 2018-03-27 | 2018-09-07 | 黄河科技学院 | CL compound concrete shear wall construction methods |
| CN110258848A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of building energy conservation CL composite shear wall |
| CN112359994A (en) * | 2020-11-26 | 2021-02-12 | 中国十七冶集团有限公司 | CL heat preservation system construction method |
| CN112609986A (en) * | 2020-12-11 | 2021-04-06 | 上海宝冶集团有限公司 | Method for controlling pouring forming quality of concrete batter post |
-
2022
- 2022-06-28 CN CN202210741949.1A patent/CN115030510A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2221119C1 (en) * | 2002-07-17 | 2004-01-10 | Баширов Хамит Закирович | Laminated panel of ventilated wall fence |
| CN108505644A (en) * | 2018-03-27 | 2018-09-07 | 黄河科技学院 | CL compound concrete shear wall construction methods |
| CN110258848A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of building energy conservation CL composite shear wall |
| CN112359994A (en) * | 2020-11-26 | 2021-02-12 | 中国十七冶集团有限公司 | CL heat preservation system construction method |
| CN112609986A (en) * | 2020-12-11 | 2021-04-06 | 上海宝冶集团有限公司 | Method for controlling pouring forming quality of concrete batter post |
Non-Patent Citations (1)
| Title |
|---|
| 田敬贤 等: "自密实混凝土在CL结构体系中的施工质量控制", 混凝土, no. 6, pages 111 - 112 * |
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