CN113389286A - Sealing treatment method for waterproof coiled material overlap joint edge in pre-laying anti-sticking method construction - Google Patents
Sealing treatment method for waterproof coiled material overlap joint edge in pre-laying anti-sticking method construction Download PDFInfo
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- CN113389286A CN113389286A CN202110567426.5A CN202110567426A CN113389286A CN 113389286 A CN113389286 A CN 113389286A CN 202110567426 A CN202110567426 A CN 202110567426A CN 113389286 A CN113389286 A CN 113389286A
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- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 80
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 238000003466 welding Methods 0.000 claims abstract description 32
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 238000009966 trimming Methods 0.000 claims abstract description 8
- 238000004078 waterproofing Methods 0.000 claims description 65
- 239000012528 membrane Substances 0.000 claims description 61
- 239000010410 layer Substances 0.000 claims description 20
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 230000005465 channeling Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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- 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
- E04B1/665—Sheets or foils impervious to water and water vapor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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Abstract
The invention discloses a sealing treatment method for a lapping edge of a waterproof coiled material in pre-paving reverse adhesion construction, wherein the waterproof coiled material comprises an upper waterproof coiled material and a lower waterproof coiled material, and the lapping edges of the upper waterproof coiled material and the lower waterproof coiled material are welded, and the method comprises the following steps: step 1: cutting off the technical throwing edge of the upper waterproof coiled material along the welding line, and exposing partial overlapping edge of the lower waterproof coiled material; step 2: trimming the cut of the upper waterproof roll to form an inclined plane; and step 3: covering the cut and partial overlapping edges of the lower waterproof roll by using a self-adhesive cover opening strip; the method cuts off the technical edge throwing of the upper waterproof coiled material, eliminates a water channeling channel formed by the fact that the upper waterproof coiled material and the lower waterproof coiled material cannot be fully adhered, and covers the cut and the partial overlapped edge of the exposed lower waterproof coiled material by the self-adhesion cover opening strip, so that the sealing performance of the overlapped edge of the waterproof coiled material in construction of the pre-laying anti-adhesion method is improved, and the waterproof effect is improved.
Description
Technical Field
The invention belongs to the technical field of waterproof coiled material connection, and particularly relates to a sealing treatment method for a waterproof coiled material overlap edge in pre-paving and anti-sticking construction.
Background
When the high-density polyethylene waterproof coiled material is constructed by adopting a pre-paving and anti-sticking method, post-cast concrete is directly contacted with the bonding surface of the waterproof coiled material to form a bonding state, so that the problem of water channeling is avoided to the greatest extent. Generally, when double welding lines are adopted for connection, due to the limitation of processes and equipment, a process flail 102 exists at the edge of a welding line 101, the process flail 102 caused in the process cannot be avoided, but the process flail 102 causes that two layers of coiled materials 103 cannot be fully adhered, post-cast concrete can only be reversely adhered to an upper layer of coiled material 103, so that the upper layer of coiled material 103 and the lower layer of coiled material 103 cannot be adhered to form a natural water channeling channel 104, which is completely against the original purpose of the waterproof coiled material and the construction method design, and the concept of water channeling cannot be effectively realized.
In view of the above drawbacks, one processing method in the prior art is as follows: see patent application No. CN201610248980.6, step five: the overlapping edges are covered by a sealing adhesive tape 105, so that the overlapping edges and the coiled materials on the two sides have the characteristics of self-adhesive film coiled materials; the overlap edge sealing method provided by the invention cannot prevent a non-full-viscous cavity formed by edge throwing in a double-welding-seam process, particularly the cavity is open to the outside at the joint of the T-shaped long edge and the short edge overlap edge (the end part of the overlap edge), and leakage water directly enters the cavity to form leakage hidden danger; therefore, the provision of the sealing tape 105 only on the surface cannot solve this defect.
Disclosure of Invention
The invention aims to provide a sealing treatment method for the lapping edge of a waterproof coiled material in the construction of a pre-laying anti-sticking method, aiming at the defects in the prior art.
In order to achieve the above object, the present invention provides a sealing method for a joint edge of a waterproof roll in pre-laying reverse adhesion construction, wherein the waterproof roll comprises an upper waterproof roll and a lower waterproof roll, and the joint edge of the upper waterproof roll and the joint edge of the lower waterproof roll are welded, the method comprising:
step 1: cutting off the technical throwing edge of the upper waterproof coiled material along a welding line, and exposing partial lapping edge of the lower waterproof coiled material;
step 2: trimming the cut of the upper waterproof roll to form an inclined plane;
and step 3: and covering the cut and the partial overlapping edge of the lower waterproof roll by using a self-adhesive cover opening strip.
Optionally, the upper surface of upper waterproofing membrane is provided with first bond line, lower floor's waterproofing membrane include lower floor's waterproofing membrane body with the overlap joint limit, the upper surface of lower floor's waterproofing membrane body is provided with the second bond line.
Optionally, the overlapping edges of the upper waterproof roll and the lower waterproof roll are welded through double welding seams, and a cavity is formed between the two welding seams.
Optionally, in the step 1, cutting off all technical flapped edges of the upper waterproof coiled material along the welding seam by a cutter.
Optionally, the step 3 further includes: bonding said self-adhesive cover strip to said cut and said partially overlapped edge of said underlying waterproofing membrane.
Optionally, upper waterproofing membrane is provided with two, two the one end downside that upper waterproofing membrane is close to each other is provided with lower floor's waterproofing membrane, two upper waterproofing membrane upper surface is provided with the third bond line.
Optionally, lower floor's waterproofing membrane include lower floor's waterproofing membrane body with the overlap joint limit, the overlap joint limit set up in the both sides of lower floor's waterproofing membrane body, two the overlap joint limit respectively with two upper waterproofing membrane welds mutually through double weld.
Optionally, in the step 3, the cut of the two upper waterproof rolls, the partial overlapping edges on two sides of the lower waterproof roll and the lower waterproof roll body are covered by the self-adhesive cover opening strip.
Optionally, the self-adhesive cover strip upper surface is provided with a fourth adhesive layer.
Optionally, the upper waterproof roll and the lower waterproof roll are both high-density polyethylene waterproof rolls.
The invention provides a sealing treatment method for a waterproof coiled material overlap edge in pre-paving reverse adhesion construction, which has the beneficial effects that:
1. the method cuts off the technical edge throwing of the upper waterproof coiled material, eliminates a water channeling channel formed by the fact that the upper waterproof coiled material and the lower waterproof coiled material cannot be fully adhered, and covers the cut and the partial overlapped edge of the exposed lower waterproof coiled material by using the self-adhesion cover opening strip, so that the sealing performance of the overlapped edge of the waterproof coiled material in the construction of the pre-laying anti-adhesion method is improved, and the waterproof effect is improved;
2. the method is simultaneously suitable for the lap edge sealing treatment of lapping of one upper waterproof roll layer and a lower waterproof roll layer and the lap edge sealing treatment of mutually butting two upper waterproof rolls and lapping the upper waterproof rolls with the lower waterproof roll layer;
3. according to the method, the fourth adhesive layer is arranged on the upper surface of the self-adhesive cover opening strip, and the adhesive layers on the upper waterproof coiled material and/or the lower waterproof coiled material are matched to realize anti-adhesion and full-adhesion in a pre-paving anti-adhesion method, so that the waterproof effect is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic view of a waterproof roll overlap in a pre-laying reverse-bonding construction in the prior art.
Figure 2 shows a schematic view of a water-proof coiled material overlap edge in another construction of a pre-laying reverse adhesion method in the prior art.
Fig. 3 shows a schematic diagram of a welding and overlapping structure of a waterproof roll of a polymer self-adhesive film in the prior art.
Fig. 4 is a schematic construction joint diagram illustrating a sealing treatment method for a water-proof coiled material overlap edge in pre-laying reverse adhesion construction according to an embodiment of the invention.
Fig. 5 is a schematic construction joint diagram illustrating a sealing treatment method for a water-proof coiled material overlap edge in pre-laying reverse adhesion construction according to an embodiment of the invention.
Fig. 6 is a schematic construction joint diagram illustrating a sealing treatment method for a water-proof coiled material overlap edge in pre-laying reverse adhesion construction according to an embodiment of the invention.
Fig. 7 is a schematic construction joint diagram illustrating a sealing treatment method for a waterproof roll overlap edge in pre-laying reverse adhesion construction according to a second embodiment of the invention.
Fig. 8 is a schematic construction joint diagram illustrating a sealing treatment method for a waterproof roll overlap edge in pre-laying reverse adhesion construction according to a second embodiment of the invention.
Fig. 9 is a schematic construction joint diagram illustrating a sealing treatment method for a waterproof roll overlap edge in pre-laying reverse adhesion construction according to a second embodiment of the invention.
Description of reference numerals:
in fig. 1 to 3:
101. welding seams; 102. edge throwing; 103. a coil stock; 104. a water channeling passage; 105. sealing the adhesive tape;
in fig. 4 to 9:
1. an upper waterproof roll; 2. a lower waterproof roll; 3. overlapping edges; 4. welding seams; 5. edge throwing; 6. a bevel; 7. a self-adhesive cover strip; 8. a cavity.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a sealing treatment method for a lapping edge of a waterproof coiled material in pre-paving reverse adhesion construction, wherein the waterproof coiled material comprises an upper waterproof coiled material and a lower waterproof coiled material, and the lapping edges of the upper waterproof coiled material and the lower waterproof coiled material are welded, and the method comprises the following steps:
step 1: cutting off the technical throwing edge of the upper waterproof coiled material along the welding line, and exposing partial overlapping edge of the lower waterproof coiled material;
step 2: trimming the cut of the upper waterproof roll to form an inclined plane;
and step 3: and covering the cut and partial overlapping edge of the lower waterproof roll by using a self-adhesive cover opening strip.
Specifically, the edge throwing process for cutting the upper waterproof coiled material eliminates a water channeling channel formed by the fact that the upper waterproof coiled material and the lower waterproof coiled material cannot be fully adhered; in order to prevent the influence of the thickness of the waterproof coiled material on other structural layers and the attachment of the waterproof coiled material, the cut of the process edge throwing is trimmed by a cutter so as to enable the cut to exist in an inclined plane form; and cover the partial overlap edge of incision and the lower floor waterproofing membrane that leaks suddenly with self-adhesion lid mouthful strip, improve the leakproofness of waterproofing membrane overlap edge in the construction of pre-paved anti-sticking method, improve water-proof effects.
In one example, the inclined surface is inclined from the upper surface to the lower surface of the upper waterproof roll, and a sharp angle is formed on one side of the upper waterproof roll close to the lower waterproof roll; the included angle between the inclined plane on the incision and the upper surface of the lower waterproof roll becomes an obtuse angle, the transition is smoother, the overlarge thickness drop can be avoided, and the self-adhesion cover opening strip can be conveniently pasted.
Optionally, the upper surface of upper waterproofing membrane is provided with first bond line, and lower floor's waterproofing membrane includes lower floor's waterproofing membrane body and overlap joint limit, and the upper surface of lower floor's waterproofing membrane body is provided with the second bond line.
Specifically, to an upper waterproofing membrane and the lapped condition of lower floor waterproofing membrane, upper waterproofing membrane upper surface has and is used for anti-sticky first bond line, and lower floor waterproofing membrane's lower floor waterproofing membrane body upper surface also has and is used for anti-sticky second bond line, and simultaneously, the overlap edge on lower floor waterproofing membrane layer is for reserving the overlap edge, and the overlap edge does not have the bond line for with the welding between the upper waterproofing membrane.
Optionally, the overlapping edges of the upper waterproof roll and the lower waterproof roll are welded through double welding seams, and a cavity is formed between the two welding seams.
In particular, the formation of the cavity may be used to test the weld seal quality.
Optionally, in step 1, the entire process flail edge of the upper waterproof roll is cut off along the weld by a cutter.
Specifically, a wallpaper knife can be used to cut off all the technical flail edges along the outer side of the welding seam close to the outer end of the upper waterproof coiled material.
Optionally, step 3 further comprises: and adhering the self-adhesive cover opening strip to the notch and the partial overlapping edge of the lower waterproof roll.
Specifically, the self-adhesion cover opening strip bonds and seals the joint of the cut and the partial overlapping edge of the lower waterproof roll, so that the waterproof effect of the position is improved.
Optionally, upper waterproofing membrane is provided with two, and two upper waterproofing membrane one end downside that are close to each other are provided with lower floor's waterproofing membrane, and two upper waterproofing membrane upper surfaces are provided with the third bond line.
Specifically, to two upper waterproofing membrane docks and with the lapped condition of lower floor's waterproofing membrane, all be provided with the third bond line on two upper waterproofing membrane's the upper surface, the third bond line is used for anti-gluing.
Optionally, lower floor's waterproofing membrane includes lower floor's waterproofing membrane body and overlap joint limit, and the overlap joint limit sets up in the both sides of lower floor's waterproofing membrane body, and two overlap joint limits weld through double weld mutually with two upper waterproofing membrane respectively.
Specifically, the overlap joint limit of lower floor waterproofing membrane's both sides is for reserving the overlap joint limit, and the overlap joint edge does not have the bond line that is used for anti-gluing.
Optionally, in step 3, the cuts of the two upper waterproof rolls, the partial overlapping edges on both sides of the lower waterproof roll and the lower waterproof roll body are covered by a self-adhesive cover strip.
Specifically, the self-adhesion cover opening strip covers and bonds the cut of the upper waterproof roll, part of the overlap edge of the exposed lower waterproof roll and the lower waterproof roll body together, and the sealing and waterproof effects are improved.
Optionally, the self-adhesive lid strip upper surface is provided with a fourth adhesive layer.
Specifically, the fourth bond line that self-adhesion lid mouth strip upper surface set up also can be used to anti-glue, covers and bonds after the partial overlap edge of incision and lower floor's waterproofing membrane at self-adhesion lid mouth strip, and the fourth bond line realizes anti-gluing with the first bond line of upper waterproofing membrane upper surface simultaneously, realizes the effect of sticking of whole pre-paving, improves waterproof quality.
Optionally, the upper waterproof roll and the lower waterproof roll are both high-density polyethylene waterproof rolls.
Example one
As shown in fig. 4 to 6, the present invention provides a sealing method for a joint edge of a waterproof roll in a pre-laying reverse adhesion construction, wherein the waterproof roll comprises an upper waterproof roll 1 and a lower waterproof roll 2, and the joint edge 3 of the upper waterproof roll 1 and the lower waterproof roll 2 is welded, the method comprising:
step 1: cutting off a process throwing edge 5 of the upper waterproof coiled material 1 along a welding seam 4, and exposing a part of a lapping edge 3 of the lower waterproof coiled material 2;
step 2: trimming the cut of the upper waterproof roll 1 to form an inclined surface 6;
and step 3: the cut and part of the overlapping edge 3 of the underlying waterproofing membrane 2 are covered with a self-adhesive cover strip 7.
In this embodiment, the upper surface of upper waterproofing membrane 1 is provided with first bond line, and lower floor's waterproofing membrane 2 includes lower floor's waterproofing membrane body and overlap edge 3, and the upper surface of lower floor's waterproofing membrane body is provided with the second bond line.
In this embodiment, the overlapping edges 3 of the upper waterproof roll 1 and the lower waterproof roll 2 are welded by double welding seams, and a cavity 8 is formed between the two welding seams 4.
In this embodiment, in step 1, all process flail edges 5 of the upper waterproof roll 1 are cut along the weld 4 by a cutter.
In this embodiment, step 3 further includes: a self-adhesive cover strip 7 is bonded to the cut and to part of the overlapping edge 3 of the underlying waterproofing web 2.
In this embodiment the self-adhesive cover strip 7 is provided with a fourth layer of adhesive on its upper surface.
In this embodiment, the upper waterproof roll 1 and the lower waterproof roll 2 are both high-density polyethylene waterproof rolls.
In summary, in the sealing method for the overlapping edge of the waterproof roll material in the construction of the pre-laying reverse adhesion method, the overlapping edge 3 of the upper waterproof roll material 1 and the lower waterproof roll material 2 is sealed as an example:
firstly, cutting off a process throwing edge 5, and after welding the waterproof coiled material to form a double welding seam, completely cutting off the process throwing edge 5 along the edge of the welding seam 4 by using a wallpaper knife or other cutters to expose the lower waterproof coiled material 2;
then trimming is carried out to prevent other structural layers from being attached to the waterproof roll due to the thickness of the waterproof roll, and the notch of the process throwing edge 5 is trimmed by using a cutter to enable the notch to exist in the form of an inclined surface 6;
and finally, sticking a self-adhesive cover strip 7, wherein the overlap edge 3 of the lower waterproof coiled material 2 is not completely covered by double welding lines, the part of the overlap edge 3 exposed after the edge throwing 5 in the cutting process has no bonding layer for reverse adhesion, and a pre-laid reverse adhesion waterproof system cannot be formed with post-poured concrete, so that after the part is finished with the working procedures, the self-adhesive cover strip 7 which is matched with a fourth bonding layer for reverse adhesion is adopted to cover and bond the cut and the part of the overlap edge 3 of the lower waterproof coiled material 2.
Example two
As shown in fig. 7 to 9, the present invention provides a sealing method for a joint edge of a waterproof roll in a pre-laying reverse adhesion construction, wherein the waterproof roll comprises an upper waterproof roll 1 and a lower waterproof roll 2, and the joint edge 3 of the upper waterproof roll 1 and the lower waterproof roll 2 is welded, the method comprising:
step 1: cutting off a process throwing edge 5 of the upper waterproof coiled material 1 along a welding seam 4, and exposing a part of a lapping edge 3 of the lower waterproof coiled material 2;
step 2: trimming the cut of the upper waterproof roll 1 to form an inclined surface 6;
and step 3: the cut and part of the overlapping edge 3 of the underlying waterproofing membrane 2 are covered with a self-adhesive cover strip 7.
In this embodiment, upper waterproofing membrane 1 is provided with two, and two upper waterproofing membrane 1 one end downside that are close to each other are provided with lower floor's waterproofing membrane 2, and two 1 upper surfaces of upper waterproofing membrane are provided with the third bond line.
In this embodiment, lower floor's waterproofing membrane 2 includes lower floor's waterproofing membrane body and overlap edge 3, and overlap edge 3 sets up in the both sides of lower floor's waterproofing membrane body, and two overlap edges 3 weld through double weld mutually with two upper waterproofing membrane 1 respectively.
In this embodiment, in step 3, the cuts of the two upper waterproofing sheets 1, the partial overlapping edges 3 on both sides of the lower waterproofing sheet 2, and the lower waterproofing sheet body are covered with the self-adhesive cover strip 7.
In this embodiment the self-adhesive cover strip 7 is provided with a fourth layer of adhesive on its upper surface.
In this embodiment, the upper waterproof roll 1 and the lower waterproof roll 2 are both high-density polyethylene waterproof rolls.
In summary, in the construction of the sealing method for the overlapping edge of the waterproof roll in the pre-laying reverse adhesion construction in this embodiment, two pieces of upper waterproof rolls 1 are butted and sealed with the overlapping edge 3 of the lower waterproof roll 2 as an example:
firstly, cutting off a process throwing edge 5, and after welding the waterproof coiled material to form a double welding seam, completely cutting off the process throwing edge 5 along the edge of the welding seam 4 by using a wallpaper knife or other cutters to expose the lower waterproof coiled material 2;
then trimming is carried out to prevent other structural layers from being attached to the waterproof roll due to the thickness of the waterproof roll, and the notch of the process throwing edge 5 is trimmed by using a cutter to enable the notch to exist in the form of an inclined surface 6;
and finally, sticking a self-adhesive cover strip 7, wherein the overlap edge 3 of the lower waterproof roll 2 is not completely covered by double welding lines, the exposed part of the overlap edge 3 after the edge 5 is thrown by the cutting process has no bonding layer for anti-adhesion, and the pre-laid anti-adhesion waterproof system cannot be formed with post-poured concrete, so that after the part is finished with the above procedures, the self-adhesive cover strip 7 which is matched with the self-adhesive cover strip 7 and has a fourth bonding layer for anti-adhesion is adopted to cover and bond two notches, the part of the overlap edge 3 of the lower waterproof roll 2 and the lower waterproof roll body.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a sealing treatment method of waterproofing membrane overlap joint limit in construction of anti-sticking method of pre-paving, wherein, waterproofing membrane includes upper waterproofing membrane and lower floor's waterproofing membrane, the overlap joint limit of upper waterproofing membrane with lower floor's waterproofing membrane welds mutually, its characterized in that, this method includes:
step 1: cutting off the technical throwing edge of the upper waterproof coiled material along a welding line, and exposing partial lapping edge of the lower waterproof coiled material;
step 2: trimming the cut of the upper waterproof roll to form an inclined plane;
and step 3: and covering the cut and the partial overlapping edge of the lower waterproof roll by using a self-adhesive cover opening strip.
2. The sealing treatment method for the overlapping edge of the waterproof roll in the construction of the pre-paving reverse adhesion method as claimed in claim 1, wherein a first adhesive layer is arranged on the upper surface of the upper waterproof roll, the lower waterproof roll comprises a lower waterproof roll body and the overlapping edge, and a second adhesive layer is arranged on the upper surface of the lower waterproof roll body.
3. The sealing treatment method for the overlapped edges of the waterproof rolls in the construction of the pre-paving reverse adhesion method according to claim 2, wherein the overlapped edges of the upper waterproof roll and the lower waterproof roll are welded by double welding seams, and a cavity is formed between the two welding seams.
4. The sealing treatment method for the overlapped edges of the waterproof coiled materials in the construction of the pre-paving reverse adhesion method according to claim 1, characterized in that in the step 1, all the process edge throwing of the upper waterproof coiled material is cut off along the welding seam by a cutter.
5. The sealing treatment method of the overlapping edge of the waterproof coiled material in the construction of the pre-paving reverse adhesion method according to claim 1, wherein the step 3 further comprises the following steps: bonding said self-adhesive cover strip to said cut and said partially overlapped edge of said underlying waterproofing membrane.
6. The method for sealing the overlapped edges of the waterproof rolls in the construction of the pre-paving reverse adhesion method as claimed in claim 1, wherein the upper waterproof roll is provided with two pieces, the lower waterproof roll is provided at the lower side of the end of the two pieces close to each other, and the upper surface of the two pieces of upper waterproof roll is provided with a third adhesive layer.
7. The sealing treatment method for the overlapping edge of the waterproof coiled material in the construction of the pre-paving reverse adhesion method according to claim 6, wherein the lower waterproof coiled material comprises a lower waterproof coiled material body and the overlapping edge, the overlapping edge is arranged on two sides of the lower waterproof coiled material body, and the two overlapping edges are respectively welded with the two upper waterproof coiled materials through double welding lines.
8. The method for sealing the overlapped edges of waterproof rolls in the construction of pre-laying reverse adhesion method according to claim 7, wherein in the step 3, the cut-outs of the two waterproof rolls at the upper layer, the partial overlapped edges at both sides of the waterproof roll at the lower layer and the waterproof roll body at the lower layer are covered with the self-adhesive cover strip.
9. The method for sealing the overlapped edge of the waterproof coiled material in the construction of the pre-paving reverse adhesion method as claimed in claim 1, wherein a fourth adhesive layer is arranged on the upper surface of the self-adhesive cover opening strip.
10. The method for sealing the overlapping edge of the waterproof roll in the construction of the pre-paving reverse adhesion method as claimed in claim 1, wherein the upper waterproof roll and the lower waterproof roll are both high-density polyethylene waterproof rolls.
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