CN113931327A - Waterproof process for horizontal joint of prefabricated outer wall - Google Patents
Waterproof process for horizontal joint of prefabricated outer wall Download PDFInfo
- Publication number
- CN113931327A CN113931327A CN202111159979.3A CN202111159979A CN113931327A CN 113931327 A CN113931327 A CN 113931327A CN 202111159979 A CN202111159979 A CN 202111159979A CN 113931327 A CN113931327 A CN 113931327A
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- Prior art keywords
- wall
- prefabricated
- waterproof
- prefabricated outer
- horizontal
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 239000000565 sealant Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 13
- 239000002344 surface layer Substances 0.000 claims description 8
- 238000004078 waterproofing Methods 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
Images
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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a waterproof process of a horizontal seam of a prefabricated outer wall, which is used for connecting the prefabricated outer wall in an assembly type building. A tongue-and-groove is reserved at the bottom of the outdoor side surface of the upper prefabricated wall, and the upper surface of the tongue-and-groove is made into a shape with a high inside and a low outside; and reserving a water retaining reverse ridge and a slope at the top of the outdoor side surface of the lower prefabricated wall. After the lower-layer prefabricated outer wall is installed, 20mm is reserved on one outdoor side when concrete in the wall and plate node area is cast; when the upper-layer prefabricated outer wall is installed, one outdoor side of a seam at the bottom of the prefabricated wall is waterproof by sealant, one indoor side is plugged by high-strength mortar and is smoothed by waterproof mortar, and after the upper-layer prefabricated outer wall and the lower-layer prefabricated outer wall are installed, the groove horizontal groove is filled by special waterproof materials. The invention blocks the way of water flowing into the room by means of multiple fortifications and layer-by-layer separation, and practically solves the problems of water seepage and water leakage at the horizontal joint of the prefabricated outer wall of the building.
Description
Technical Field
The invention relates to the field of assembly type buildings, in particular to a waterproof process for horizontal joints of prefabricated external walls.
Background
The existing horizontal seam water prevention of the prefabricated external wall only adopts waterproof measures of materials such as sealant water prevention, high-strength mortar plugging, waterproof mortar and the like at the bottom seam of the prefabricated external wall, the materials are corroded and aged due to weathering and rain erosion, and after the age is long, the house experience of residents is greatly influenced by the water seepage problem of the external wall.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a waterproof process for a horizontal joint of a prefabricated outer wall, and solves the problems of water seepage and water leakage of the outer wall caused by too simple waterproof measures of the horizontal joint of the prefabricated outer wall.
In order to solve the technical problem, the invention is realized as follows:
a waterproof process for horizontal joints of prefabricated external walls is characterized by comprising the following steps:
step one, when the prefabricated outer wall is produced, reserving a tongue-and-groove at the bottom of one outdoor side of the prefabricated outer wall, and reserving a water retaining reverse ridge and an inclined slope at the top;
step two, finishing the installation of the vertical component prefabricated outer wall and the horizontal component prefabricated laminated slab of the lower layer;
pouring concrete of the floor slab laminated layer and the wall and slab joint area, and reserving a 20mm thick waterproof material for the outer vertical surface layer of the outer wall;
step four, installing the upper-layer prefabricated outer wall, and filling the joint of the wall bottom;
and step five, sequentially filling waterproof materials into the 20mm tongue-and-groove models reserved on the outer vertical surface layer.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized in that the top slope is close to the outer wall surface, the indoor side is high, and the outdoor side is low.
The waterproof process of the horizontal joint of the prefabricated outer wall is characterized in that the top water retaining reverse bank is abutted against one side in the inclined slope chamber.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized in that the tongue-and-groove shape reserved at the bottom is that the top surface is high at the indoor side and the bottom surface is low at the outdoor side.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized by comprising the following steps of: after the prefabricated outer wall is installed, when concrete is poured, the 20mm gaps are reserved in the width range of the prefabricated outer wall.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized by comprising the following steps of: when installing prefabricated outer wall of upper strata, bottom joint filler material is by outer to interior being in proper order: the mortar comprises a sealant, a mortar leakage prevention adhesive tape, a high-strength grouting material, a special high-strength slurry and waterproof mortar.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized by comprising the following steps of: waterproof materials are filled in the prefabricated outer wall cast-in-place node area and the 20mm notches reserved in the prefabricated outer wall rabbet range, and the filled waterproof materials sequentially comprise from inside to outside: 1.5mm thick high polymer modified asphalt waterproof coating, 3mm thick APP high polymer modified asphalt waterproof coiled material (polyester tire I type), flexible waterproof putty, and surface layer coating.
The waterproof process for the horizontal joint of the prefabricated outer wall is characterized in that no longitudinal ribs of the wall body extend out within the width range of the water retaining reverse ridge.
The invention has the beneficial effects that: the method combining material waterproofing and structural waterproofing comprises the following steps: the groove reserved on the outermost side of the joint is provided with a first waterproof material, water seeping through the first waterproof material flows back to the outer wall surface along the bevel edge of the groove under the action of gravity due to the groove shape of the inner high outer bottom, then a second waterproof material is arranged at the joint of the upper layer wall bottom on the inner side of the first waterproof material, the lower layer wall top is provided with a second waterproof structure by utilizing a water retaining reverse ridge and a bevel slope, and the way of water flowing into the room is blocked by means of multiple fortifications and layer-by-layer separation, so that the problems of water seepage and water leakage at the horizontal joint of the prefabricated outer wall of the building are solved practically.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a first three-dimensional schematic view of a prefabricated exterior wall according to the present invention;
FIG. 2 is a second three-dimensional schematic view of the prefabricated exterior wall according to the present invention;
FIG. 3 is a schematic view of the prefabricated exterior wall facade top construction of the present invention;
FIG. 4 is a schematic view of the bottom structure of the outer facade of the prefabricated exterior wall according to the present invention;
FIG. 5 is a schematic view showing a first process of constructing and installing a prefabricated exterior wall according to the present invention;
FIG. 6 is a schematic view of a second process for constructing and installing a prefabricated exterior wall according to the present invention;
FIG. 7 is a schematic view showing a third process of constructing and installing a prefabricated exterior wall according to the present invention;
FIG. 8 is a fourth schematic view illustrating the construction and installation process of the prefabricated exterior wall according to the present invention;
FIG. 9 is a fifth schematic view of the construction and installation process of the prefabricated exterior wall according to the present invention;
FIG. 10 is a detailed view of a prefabricated outer wall node according to the present invention;
fig. 11 is a detailed view of a prefabricated external wall node according to the present invention.
Detailed Description
As shown in fig. 1-11: a waterproof process for horizontal joints of prefabricated external walls comprises the following steps:
step one, when the prefabricated outer wall is produced, reserving a rabbet 1 at the bottom of one outdoor side of the prefabricated outer wall, reserving a water retaining reverse ridge and an inclined slope at the top 2, and casting a joint area dowel bar 3 in situ; the top slope is close to the outer wall surface, the indoor side is high, and the outdoor side is low; the top water retaining reverse ridge abuts against one side in the inclined slope chamber; the tongue-and-groove shape reserved at the bottom is that the top surface is high at the indoor side and low at the outdoor side. And no longitudinal rib of the wall body is required to extend out within the width range of the water retaining reverse ridge.
Step two, finishing the installation of the vertical component prefabricated outer wall and the horizontal component prefabricated composite slab 5 of the lower layer;
thirdly, pouring a floor slab laminated layer 8 and concrete 6 in a wall and slab node area, and reserving a 20 mm-thick waterproof material for the outer vertical surface at the surface layer of the outer vertical surface 4 of the outer wall; after the prefabricated outer wall 10 is installed, when concrete is poured, the 20mm gaps are reserved within the width range of the prefabricated outer wall.
Step four, installing the upper-layer prefabricated outer wall, and filling a material 7 at the joint of the wall bottom; when installing prefabricated outer wall of upper strata, bottom joint filler material 7 is by outer to interior in proper order: the joint bar comprises a sealant 71, a leakage-proof rubber strip 72, a high-strength grouting material 73, a special high-strength grouting material 74 and waterproof mortar 75, wherein a sleeve 76 is arranged outside the joint bar 3, and the special high-strength grouting material 74 is filled in the whole sleeve 76.
And step five, sequentially filling waterproof materials 9 into the 20mm tongue-and-groove models reserved on the outer vertical surface layer. Waterproof materials are filled in the prefabricated outer wall cast-in-place node area and the 20mm notches reserved in the prefabricated outer wall rabbet range, and the filled waterproof materials sequentially comprise from inside to outside: 91 of high polymer modified asphalt waterproof coating with the thickness of 1.5mm, 92 of APP high polymer modified asphalt waterproof coiled material (polyester tire I type) with the thickness of 3mm, two layers 93 of flexible waterproof putty and surface coating 94.
Claims (8)
1. A waterproof process for horizontal joints of prefabricated external walls is characterized by comprising the following steps:
step one, when the prefabricated outer wall is produced, reserving a tongue-and-groove at the bottom of one outdoor side of the prefabricated outer wall, and reserving a water retaining reverse ridge and an inclined slope at the top;
step two, finishing the installation of the vertical component prefabricated outer wall and the horizontal component prefabricated laminated slab of the lower layer;
pouring concrete of the floor slab laminated layer and the wall and slab joint area, and reserving a 20mm thick waterproof material for the outer vertical surface layer of the outer wall;
step four, installing the upper-layer prefabricated outer wall, and filling the joint of the wall bottom;
and step five, sequentially filling waterproof materials into the 20mm tongue-and-groove models reserved on the outer vertical surface layer.
2. The waterproofing process for horizontal joints of prefabricated exterior walls according to claim 1, wherein the top slope is close to the exterior wall surface, and is high on the indoor side and low on the outdoor side.
3. The waterproofing process for horizontal joints of prefabricated exterior walls according to claim 1, wherein the top water retaining sill abuts against an inner side of the sloping chamber.
4. The waterproof process for the horizontal joint of the prefabricated exterior wall as claimed in claim 1, wherein the reserved tongue-and-groove shapes at the bottom are that the top surface is high indoors and low outdoors.
5. The waterproofing process for the horizontal seam of a prefabricated exterior wall according to claim 1, wherein: after the prefabricated outer wall is installed, when concrete is poured, the 20mm gaps are reserved in the width range of the prefabricated outer wall.
6. The waterproofing process for the horizontal seam of a prefabricated exterior wall according to claim 1, wherein: when installing prefabricated outer wall of upper strata, bottom joint filler material is by outer to interior being in proper order: the mortar comprises a sealant, a mortar leakage prevention adhesive tape, a high-strength grouting material, a special high-strength slurry and waterproof mortar.
7. The waterproofing process for the horizontal seam of a prefabricated exterior wall according to claim 1, wherein: waterproof materials are filled in the prefabricated outer wall cast-in-place node area and the 20mm notches reserved in the prefabricated outer wall rabbet range, and the filled waterproof materials sequentially comprise from inside to outside: 1.5mm thick high polymer modified asphalt waterproof coating, 3mm thick APP high polymer modified asphalt waterproof coiled material (polyester tire I type), flexible waterproof putty, and surface layer coating.
8. The waterproof process for the horizontal joint of the prefabricated exterior wall as claimed in claim 3, wherein no longitudinal ribs of the wall body can extend out within the width range of the water retaining sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159979.3A CN113931327A (en) | 2021-09-30 | 2021-09-30 | Waterproof process for horizontal joint of prefabricated outer wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159979.3A CN113931327A (en) | 2021-09-30 | 2021-09-30 | Waterproof process for horizontal joint of prefabricated outer wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113931327A true CN113931327A (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159979.3A Pending CN113931327A (en) | 2021-09-30 | 2021-09-30 | Waterproof process for horizontal joint of prefabricated outer wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538643A (en) * | 2022-09-27 | 2022-12-30 | 徐智颖 | An assembled exterior wall spanning waterproof and shear-resistant structure and construction method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002096A1 (en) * | 1993-07-09 | 1995-01-19 | Martin Wochner | Reinforced concrete precast element and building erected therewith |
| CN106703225A (en) * | 2015-11-18 | 2017-05-24 | 上海宝冶集团有限公司 | Fabricated building prefabricated outer wall joint waterproof method |
| CN206245495U (en) * | 2016-11-18 | 2017-06-13 | 上海蓝天房屋装饰工程有限公司 | A kind of waterproof construction of wall joints |
| CN206591654U (en) * | 2017-03-08 | 2017-10-27 | 江苏溧阳建设集团有限公司 | Assembled architecture precast facade seam crossing waterproof construction |
| CN108149805A (en) * | 2017-12-26 | 2018-06-12 | 中国十七冶集团有限公司 | A kind of structure of novel fabricated building joint water proof exterior wall |
| CN108999300A (en) * | 2018-09-29 | 2018-12-14 | 清华大学 | Fabricated shear wall outer wall joint waterproof construction |
| CN208996225U (en) * | 2018-08-02 | 2019-06-18 | 广东联城住工装备信息科技有限公司 | Component splices waterproof construction |
| CN213572429U (en) * | 2020-07-14 | 2021-06-29 | 江苏筑森建筑设计有限公司 | Waterproof connection structure of prefabricated outer wall |
| CN113356395A (en) * | 2021-05-19 | 2021-09-07 | 李童 | Waterproof sound-proof wall of environmental protection for building |
-
2021
- 2021-09-30 CN CN202111159979.3A patent/CN113931327A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002096A1 (en) * | 1993-07-09 | 1995-01-19 | Martin Wochner | Reinforced concrete precast element and building erected therewith |
| CN106703225A (en) * | 2015-11-18 | 2017-05-24 | 上海宝冶集团有限公司 | Fabricated building prefabricated outer wall joint waterproof method |
| CN206245495U (en) * | 2016-11-18 | 2017-06-13 | 上海蓝天房屋装饰工程有限公司 | A kind of waterproof construction of wall joints |
| CN206591654U (en) * | 2017-03-08 | 2017-10-27 | 江苏溧阳建设集团有限公司 | Assembled architecture precast facade seam crossing waterproof construction |
| CN108149805A (en) * | 2017-12-26 | 2018-06-12 | 中国十七冶集团有限公司 | A kind of structure of novel fabricated building joint water proof exterior wall |
| CN208996225U (en) * | 2018-08-02 | 2019-06-18 | 广东联城住工装备信息科技有限公司 | Component splices waterproof construction |
| CN108999300A (en) * | 2018-09-29 | 2018-12-14 | 清华大学 | Fabricated shear wall outer wall joint waterproof construction |
| CN213572429U (en) * | 2020-07-14 | 2021-06-29 | 江苏筑森建筑设计有限公司 | Waterproof connection structure of prefabricated outer wall |
| CN113356395A (en) * | 2021-05-19 | 2021-09-07 | 李童 | Waterproof sound-proof wall of environmental protection for building |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538643A (en) * | 2022-09-27 | 2022-12-30 | 徐智颖 | An assembled exterior wall spanning waterproof and shear-resistant structure and construction method |
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| PB01 | Publication | ||
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Application publication date: 20220114 |
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| RJ01 | Rejection of invention patent application after publication |