CN115341681A - Construction method for preventing ALC wallboard splicing cracks - Google Patents

Construction method for preventing ALC wallboard splicing cracks Download PDF

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Publication number
CN115341681A
CN115341681A CN202210815999.XA CN202210815999A CN115341681A CN 115341681 A CN115341681 A CN 115341681A CN 202210815999 A CN202210815999 A CN 202210815999A CN 115341681 A CN115341681 A CN 115341681A
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China
Prior art keywords
wallboard
joint
mortar
wall
shaped
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CN202210815999.XA
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Chinese (zh)
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杨勇
毛凤森
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China MCC20 Group Corp Ltd
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China MCC20 Group Corp Ltd
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Priority to CN202210815999.XA priority Critical patent/CN115341681A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6801Fillings therefor

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)

Abstract

The invention discloses a construction method for preventing ALC wallboard splicing cracks, which is characterized in that mortar is coated on the side surface of a wallboard, a joint is paved by adopting fiber mesh cloth, and anti-crack mortar is adopted for leveling and compacting; the joint of the top of the wallboard and the beam is sealed and filled with mortar, and is sealed and compacted by caulking agents, and a U-shaped connecting piece is arranged at the joint of the wallboard; round steel is nailed into the wall board arranged at the T-shaped or corner position, and the wall board is connected with the T-shaped wall or the corner wall; setting a contraction joint at the joint of the door frame and the long wall, and then performing corresponding caulking treatment by using mortar; when the beam-passing plate at the upper part of the door frame is installed, the joint of the transverse wallboard and the vertical wallboard is fully extruded with adhesive, and the lower end of the wallboard is sealed and plugged; for reserved door and window openings, adjacent wall plates are reinforced by U-shaped connecting pieces, and lintels at the tops of the openings are fixed by trapezoidal steel inserting pieces or penetrating ribs; when the later-stage opening is carried out on the wallboard, angle steel is additionally arranged at the top of the opening, and two sides of the angle steel extend into the wallboard. The method avoids splicing cracks of the ALC wallboard and ensures the quality of the building engineering.

Description

Construction method for preventing ALC wallboard splicing cracks
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a construction method for preventing ALC wallboard splicing cracks.
Background
With the continuous progress of the technical level, the popularization and the use of ALC wallboard construction drive the building industry to move from backward wet construction to advanced dry construction, thereby realizing the integration of residential component generation industrialization, technical equipment modernization, scale production intensification and construction equipment, improving the practical area of a residence, lightening the structural load and improving the earthquake resistance and the safety performance of a building.
The ALC wallboard has incomparable comprehensive advantages of light weight, high strength, environmental protection, durability and other wall materials. However, the wallboard has certain defects, when the on-site plate assembly construction is carried out, the condition of more construction joints often occurs, in the plate installation process, contraction cracks easily occur at the joint parts, and the generated cracks often bring certain adverse effects to later-stage finish decoration construction, so that the further popularization and application of the ALC wallboard are influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method for preventing ALC wallboard splicing cracks.
In order to solve the technical problem, the construction method for preventing the ALC wallboard splicing crack comprises the following steps:
coating mortar on the side surface of a positioned wallboard, scraping the extruded mortar, leveling and compacting by using bonding mortar, uniformly paving the joints of the wallboard by adopting fiber mesh cloth with the width of 200-300 mm, leveling and compacting by adopting anti-crack mortar;
secondly, sealing and filling the joint of the top of the wallboard and the beam by using mortar, sealing the joint by using a caulking agent, installing a U-shaped connecting piece at the joint of the wallboard, matching the specification of the U-shaped connecting piece with the thickness of the wallboard, and connecting the wallboard and the column by using a bonding agent;
thirdly, nailing round steel into the wall board arranged at the position of the T-shaped wall or the corner wall at 1/3 of the height of the wall body, connecting the wall board with the T-shaped wall or the corner wall, and strictly preventing collision and vibration before the bonding seam between the wall boards does not reach the specified strength so as to prevent the dislocation and cracking of the board seam;
step four, setting a contraction joint at the joint of the door frame and the long wall, giving sufficient time to release the stress of the wall body, and then performing corresponding caulking treatment on the contraction joint by using mortar to prevent the inverted V-shaped joint;
step five, when the lintel plate at the upper part of the door frame is installed, shoulder openings with the width of 100mm are cut on two sides of a door opening, the joint of the transverse wallboard and the vertical wallboard is fully extruded with adhesive, the lower end of the wallboard is sealed by adopting 1: 2.5 dry and hard cement mortar after bonding, the wood wedge under the wallboard is removed after maintenance, and the wallboard is compacted by the dry and hard cement mortar with the same strength;
step six, for the reserved door and window openings, when the width L of the opening is larger than or equal to 1200 mm, the adjacent wall boards are reinforced by a U-shaped connecting piece, and when the width of the opening is smaller than 1200 mm, the lintel at the top of the opening is fixed by a trapezoidal steel inserting piece or a penetrating rib;
and seventhly, performing post-stage hole forming on the assembled wall board, and when the width of the hole is larger than 1200 mm, additionally arranging angle steel at the top of the hole, wherein two sides of the angle steel extend into the wall board by 100mm respectively.
And further, checking the assembled wallboard, cleaning the finish coat in the range of 10cm on each side of the crack if the splicing crack exists, forming a V-shaped groove on the crack, wherein the depth of the V-shaped groove is 1-1.5 cm, the width of the V-shaped groove is 2-3 cm, cleaning the groove by using water, caulking by adopting mortar, sticking alkali-resistant glass fiber mesh cloth with the width not less than 20cm, and repairing the surface of the V-shaped groove by using elastic putty.
Further, the mortar is a polymer type cement mortar.
Further, the U-shaped connecting piece is bent by flat steel with the thickness not less than 3 mm.
Furthermore, the round steel is polished rod reinforcing steel bar with the diameter of 6mm and the length of 300 mm.
The construction method for preventing the ALC wallboard splicing cracks adopts the technical scheme, namely mortar is coated on the side surface of the wallboard, the joints are paved by adopting fiber mesh cloth, and anti-crack mortar is adopted for leveling and compacting; the joint of the top of the wallboard and the beam is sealed and filled with mortar, a caulking agent is adopted for sealing, and a U-shaped connecting piece is arranged at the joint of the wallboard; the round steel is nailed into the wall board arranged at the T-shaped or corner position, and the wall board is connected with the T-shaped wall or the corner wall; setting a contraction joint at the joint of the door frame and the long wall, and then performing corresponding caulking treatment by using mortar; when the beam-passing plate at the upper part of the door frame is installed, the joint of the transverse wallboard and the vertical wallboard is fully extruded with adhesive, and the lower end of the wallboard is sealed and plugged; for reserved door and window openings, adjacent wall plates are reinforced by U-shaped connecting pieces, and lintels at the tops of the openings are fixed by trapezoidal steel inserting pieces or penetrating ribs; when the wallboard is drilled in the later period, angle steel is additionally arranged at the top of the opening, and two sides of the angle steel extend into the wallboard by 100mm respectively. The method selects a proper construction process, considers the influence of factors such as maintenance and the like, carries out quality control on each link of construction, effectively avoids splicing cracks of the ALC wallboard, and ensures the quality of the building engineering.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic view of a U-shaped connecting piece installed at the joint of the wall panel in the method;
FIG. 2 is a schematic view of the method for connecting the corner wall by nailing round steel into the wall plate at the corner wall;
FIG. 3 is a schematic view of the method for connecting T-shaped walls by nailing round steel into the wall board arranged at the position of the T-shaped wall;
FIG. 4 is a schematic diagram of the method for reinforcing adjacent wallboards with reserved door and window openings by using U-shaped connecting pieces and arranging angle steel for later-stage hole opening of the wallboards.
Detailed Description
The construction method for preventing the ALC wallboard splicing cracks comprises the following steps:
firstly, coating mortar on the side surface of a positioned wallboard, scraping the extruded mortar, leveling and compacting by using bonding mortar, uniformly laying the wallboard joints by adopting fiber mesh cloth with the width of 200-300 mm, and leveling and compacting by adopting anti-crack mortar;
step two, as shown in figure 1, the joint of the top of the wallboard 1 and the beam 2 is sealed and filled with mortar and is sealed and compacted by caulking agent, the specification of a U-shaped connecting piece 3,U type connecting piece 3 arranged at the joint 11 of the wallboard 1 is matched with the thickness of the wallboard 1, and the wallboard is connected with the column by adhesive;
thirdly, as shown in fig. 2 and 3, nailing round steel 6 at 1/3 of the height of the wall body 1 arranged at the position of the T-shaped wall 4 or the corner wall 5 for connecting the wall body 1 with the T-shaped wall 4 or the corner wall 5, and strictly preventing collision and vibration before the bonding seam 12 between the wall bodies 1 does not reach the specified strength so as to prevent the dislocation and cracking of the seam;
setting a contraction joint at the joint of the door frame and the long wall, giving sufficient time to release the stress of the wall body, and performing corresponding caulking treatment on the contraction joint by using mortar to prevent the inverted splayed joint;
step five, when the lintel plate at the upper part of the door frame is installed, shoulder openings with the width of 100mm are cut on two sides of a door opening, the joint of the transverse wallboard and the vertical wallboard is fully extruded with adhesive, the lower end of the wallboard is sealed by adopting 1: 2.5 dry and hard cement mortar after bonding, the wood wedge under the wallboard is removed after maintenance, and the wallboard is compacted by the dry and hard cement mortar with the same strength;
step six, as shown in fig. 4, for the reserved door and window openings, when the width L of the opening is more than or equal to 1200 mm, the adjacent wall boards 1 are reinforced by the U-shaped connecting piece 3, and when the width of the opening is less than 1200 mm, the lintel 7 at the top of the opening is fixed by the trapezoidal steel inserting pieces or fixed by penetrating ribs;
seventhly, as shown in fig. 4, performing post-stage hole forming on the assembled wall board 1, and when the width of the hole is larger than 1200 mm, additionally arranging angle steel 8 at the top of the hole, wherein two sides of the angle steel 8 extend into the wall board by 100mm respectively.
Preferably, the assembled wall board is checked, if a splicing crack exists, the finishing layers in the range of 10cm on two sides of the crack are cleaned, a V-shaped groove is formed in the crack, the depth of the V-shaped groove is 1-1.5 cm, the width of the V-shaped groove is 2-3 cm, the V-shaped groove is cleaned by water, mortar is adopted for caulking, alkali-resistant glass fiber mesh cloth with the width not smaller than 20cm is pasted, and the surface of the V-shaped groove is repaired by using elastic putty.
Preferably, said mortar is a cement mortar of the polymer type.
Preferably, the U-shaped connecting piece is formed by bending flat steel with the thickness not less than 3 mm.
Preferably, the round steel is polished rod steel bar with the diameter of 6mm and the length of 300 mm.
Because of lack of practical experience of ALC wallboard installation engineering and practice of technologies such as wallboard installation, the traditional technologies, tools, mortar and the like continue to use the method of brick walls, the construction quality cannot be ensured, and the phenomena of wall surface cracks or water seepage and the like are easy to occur in the using process after completion of engineering. The reasons for this problem are many, and can be broadly divided into the following reasons: the wallboard is still in a wet state during installation, and the assembled board generates large drying shrinkage and generates an installation crack; the workman can't operate according to relevant standard when assembling the construction operation, and the processing technology is wrong to the piece joint of panel, and the raw and other materials that handle the piece joint are improper, and the caulking mortar is not full, and the piece joint processing time is improper, and external load vibrates, and panel dead weight stress changes, temperature stress influence and expend with heat and contract with cold influence etc..
The method carries out quality control on the links of raw materials, joint treatment materials, process operation, joint treatment time and the like, realizes effective control on the problem of ALC wallboard joint cracks, ensures high-quality construction of building engineering, and plays the comprehensive value of the ALC wallboard.

Claims (5)

1. A construction method for preventing ALC wallboard splicing cracks is characterized by comprising the following steps:
firstly, coating mortar on the side surface of a positioned wallboard, scraping the extruded mortar, leveling and compacting by using bonding mortar, uniformly laying the wallboard joints by adopting fiber mesh cloth with the width of 200-300 mm, and leveling and compacting by adopting anti-crack mortar;
secondly, sealing and filling the joint of the top of the wallboard and the beam by using mortar, sealing the joint by using a caulking agent, installing a U-shaped connecting piece at the joint of the wallboard, matching the specification of the U-shaped connecting piece with the thickness of the wallboard, and connecting the wallboard and the column by using a bonding agent;
thirdly, nailing round steel into the wall board arranged at the position of the T-shaped wall or the corner wall at 1/3 of the height of the wall body, connecting the wall board with the T-shaped wall or the corner wall, and strictly preventing collision and vibration before the bonding seam between the wall boards does not reach the specified strength so as to prevent the dislocation and cracking of the board seam;
setting a contraction joint at the joint of the door frame and the long wall, giving sufficient time to release the stress of the wall body, and performing corresponding caulking treatment on the contraction joint by using mortar to prevent the inverted splayed joint;
step five, when the lintel plate at the upper part of the door frame is installed, cutting shoulder joints with the width of 100mm at two sides of a door opening, extruding adhesive at the joint of the transverse wallboard and the vertical wallboard, sealing the lower end of the wallboard by adopting 1: 2.5 dry and hard cement mortar after bonding, removing wood wedges under the wallboard after maintenance, and plugging the wood wedges by using the dry and hard cement mortar with the same strength;
step six, for the reserved door and window openings, when the width L of the opening is more than or equal to 1200 mm, the adjacent wall boards are reinforced by a U-shaped connecting piece, and when the width of the opening is less than 1200 mm, the lintel at the top of the opening is fixed by a trapezoidal steel insert or a steel bar;
and seventhly, performing later-stage hole opening on the assembled wall board, and when the width of the hole is larger than 1200 mm, additionally arranging angle steel at the top of the hole, wherein two sides of the angle steel extend into the wall board by 100mm respectively.
2. The construction method for preventing ALC wallboard splicing cracks as recited in claim 1, characterized in that: checking the assembled wallboard, if a splicing crack exists, cleaning the finish coat in the range of 10cm on each side of the crack, opening a V-shaped groove on the crack, wherein the depth of the V-shaped groove is 1-1.5 cm, the width of the V-shaped groove is 2-3 cm, cleaning the groove by water, caulking by adopting mortar, pasting alkali-resistant glass fiber mesh cloth with the width not less than 20cm, and repairing the surface of the V-shaped groove by using elastic putty.
3. The construction method for preventing the ALC wallboard splicing crack as set forth in claim 1 or 2, characterized in that: the mortar is a polymer type cement mortar.
4. The construction method for preventing ALC wallboard splicing cracks as recited in claim 3, characterized in that: the U-shaped connecting piece is formed by bending flat steel with the thickness not less than 3 mm.
5. The construction method for preventing ALC wallboard splicing cracks as recited in claim 3, characterized in that: the round steel is polished rod reinforcing steel bar with the diameter of 6mm and the length of 300 mm.
CN202210815999.XA 2022-07-12 2022-07-12 Construction method for preventing ALC wallboard splicing cracks Pending CN115341681A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116335421A (en) * 2023-03-30 2023-06-27 中国十七冶集团有限公司 Construction method for ALC slat slab joint in dry and cold areas
CN117052163A (en) * 2023-08-01 2023-11-14 上海宝冶集团有限公司 Method for fixing bracket at upper part of through-length door and window at position vertical to steel structure steel beam
CN118048989A (en) * 2024-04-16 2024-05-17 淄博政达建设项目管理有限公司 Anti-cracking construction method for assembled steel structure light inner wall plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11280176A (en) * 1998-03-30 1999-10-12 Onoda Autoclaved Light Weight Concrete Co Ltd Mounting structure of rise alc panel
CN106499091A (en) * 2016-11-22 2017-03-15 中国建筑第七工程局有限公司 A kind of assembling type partition wall construction method based on ALC plates
CN107700711A (en) * 2017-09-25 2018-02-16 青岛恒科瑞新信息科技有限公司 A kind of Multifunctional splicing partition wall body and its construction method
CN107859337A (en) * 2017-10-23 2018-03-30 浙江展诚建设集团股份有限公司 Steel-structure factory building FPB Light trabses cracking structure constructions
CN111549932A (en) * 2020-04-30 2020-08-18 中国一冶集团有限公司 Connecting structure of lightweight concrete wallboard and foundation structure and construction method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11280176A (en) * 1998-03-30 1999-10-12 Onoda Autoclaved Light Weight Concrete Co Ltd Mounting structure of rise alc panel
CN106499091A (en) * 2016-11-22 2017-03-15 中国建筑第七工程局有限公司 A kind of assembling type partition wall construction method based on ALC plates
CN107700711A (en) * 2017-09-25 2018-02-16 青岛恒科瑞新信息科技有限公司 A kind of Multifunctional splicing partition wall body and its construction method
CN107859337A (en) * 2017-10-23 2018-03-30 浙江展诚建设集团股份有限公司 Steel-structure factory building FPB Light trabses cracking structure constructions
CN111549932A (en) * 2020-04-30 2020-08-18 中国一冶集团有限公司 Connecting structure of lightweight concrete wallboard and foundation structure and construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116335421A (en) * 2023-03-30 2023-06-27 中国十七冶集团有限公司 Construction method for ALC slat slab joint in dry and cold areas
CN117052163A (en) * 2023-08-01 2023-11-14 上海宝冶集团有限公司 Method for fixing bracket at upper part of through-length door and window at position vertical to steel structure steel beam
CN118048989A (en) * 2024-04-16 2024-05-17 淄博政达建设项目管理有限公司 Anti-cracking construction method for assembled steel structure light inner wall plate

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Application publication date: 20221115