CN113322804B - Single-face combined reverse-adhesion type back-pasting water stop belt with simple structure - Google Patents
Single-face combined reverse-adhesion type back-pasting water stop belt with simple structure Download PDFInfo
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- CN113322804B CN113322804B CN202110503146.8A CN202110503146A CN113322804B CN 113322804 B CN113322804 B CN 113322804B CN 202110503146 A CN202110503146 A CN 202110503146A CN 113322804 B CN113322804 B CN 113322804B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a single-face combined anti-sticking back-pasted water stop belt with a simple structure, which comprises two fixing parts, wherein a middle deformation part is arranged between the two fixing parts, the fixing parts and the deformation part both comprise plastic sheets, a self-sticking adhesive layer is arranged on one side, which is attached to structural concrete, of each plastic sheet, and an anti-sticking coating film is paved on the self-sticking adhesive layer. The deformation part is a convex reserved deformation semicircular groove, and the deformation part protrudes outwards towards one side of the concrete of the attaching structure. The anti-sticking type back-pasted water stop self structural membrane is utilized to react with concrete to form a long-term stable chemical bonding interface, the skin type waterproof structure can block a water seepage passage, optimally leave away water stop convex ribs, combine a water stop area and an anchoring area, simplify the structure of the water stop, facilitate pre-paving anti-sticking construction, reserve a deformation semicircular groove as a reserved deformation allowance, adapt to structural deformation and realize a good water stop waterproof effect.
Description
Technical Field
The invention belongs to the technical field of bridge waterproofing, and particularly relates to a single-face combined reverse-adhesion type back-attached water stop belt with a simple system structure.
Background
The water stop is widely applied to various concrete structures, such as underground engineering of retaining dams, water storage tanks, subways, culverts, tunnels and the like. In some construction projects, deformation joints and construction joints are often left in the pouring due to the reasons of incapability of continuous pouring, deformation of a foundation, expansion and contraction of a concrete member caused by temperature change and the like, and the deformation joints and the construction joints often cause structural leakage. In order to prevent leakage at deformation joints and construction joints, water stops are required to be used at the deformation joints and the construction joints.
The failure of the water stop is closely related to the material and the structure type of the water stop, even the installation and fixation. The main reasons are as follows: firstly, the weather resistance and the aging resistance of the water stop belt are poor, so that the sealing failure is caused; secondly, the interface between the water stop and the structure has the problems of bonding, infirm meshing and the like, and sealing failure is easily caused under the action of external environment and external force; thirdly, the structure is easy to cause the distortion and deformation of the water stop belt under the actions of external environment temperature difference, self settlement and the like, thereby losing efficacy.
Most of the common back-to-back waterstops on the market are rubber products. The rubber waterstop is widely applied, the waterproof mechanism is that rubber has better elasticity and extensibility to achieve the water stopping purpose, but the waterstop is not easy to bond firmly with surface concrete, the water stopping effect is achieved by extending a water seepage channel, and a plurality of water stopping convex ribs are generally arranged. The deformation zone of the settlement joint is mostly directly deformed by the expansion and contraction of the rubber, as shown in figure 2. In practical application, the problems of water stop belt distortion, damage and the like easily occur, the construction difficulty is aggravated by the convex rib with a complex shape, and the concrete is not vibrated or slurry leaks frequently at the position of the water stop convex rib, so that the waterproof effect is influenced.
Disclosure of Invention
The invention is provided for solving the problems in the prior art, and aims to provide a single-face combined reverse-adhesion type back-attached water stop belt with a simple and systematic structure.
The technical scheme of the invention is as follows: the utility model provides a single face of brief system structure combines anti-formula back of body to paste waterstop that glues, includes two fixed parts, is provided with the deformation portion that is located the centre between two fixed parts, fixed part, deformation portion all include the plastic sheet, one side of plastic sheet laminating structure concrete is provided with the self-adhesion glue film, the self-adhesion glue film upper berth has antiseized to coat.
Furthermore, the deformation part is a convex reserved deformation semicircular groove, and the deformation part protrudes outwards towards one side of the concrete of the attaching structure.
Furthermore, the fixing mode of the fixing part and the structural concrete is construction by a pre-paving reverse adhesion method or construction by a post-paving method.
Furthermore, when the fixing part is constructed by a pre-paving reverse adhesion method, the construction process comprises the following steps:
firstly, laying a fixed part on a template;
then, pouring structural concrete, and reacting the anti-adhesion coating film of the fixing part with newly poured concrete to enhance the surface compactness of the concrete and improve the adhesion of self-adhesive and the concrete;
and finally, the self-adhesive glue layer of the fixing part can be closely adhered with the concrete to form a chemical adhesion interface.
Furthermore, when the fixing part is constructed by a rear paving method, the construction process comprises the following steps:
firstly, curing the structural concrete until the structural concrete is hardened;
then, cleaning, polishing and checking the structural concrete;
and finally, removing the anti-sticking coating film of the fixing part, and directly sticking the exposed self-adhesive layer on the surface of the structural concrete.
Furthermore, the plastic sheet is one of EVA, HDPE, PVC, LDPE and ECB.
Furthermore, when the fixing part is in lap joint and edge sealing, the fixing part is in lap joint and edge sealing by adopting the high polymer plastic sheet with the same material and provided with the self-adhesive layer.
Furthermore, a waterproof material and a protective layer are laid on the structural concrete, and the waterproof material and the protective layer cover the single-face combined reverse-adhesion type back-attached water stop.
Further, the deformation portion corresponds to a gap of the structural concrete.
The anti-sticking type back-pasted water stop self structural membrane is utilized to react with concrete to form a long-term stable chemical bonding interface, the skin type waterproof structure can block a water seepage passage, optimally leave away water stop convex ribs, combine a water stop area and an anchoring area, simplify the structure of the water stop, facilitate pre-paving anti-sticking construction, reserve a deformation semicircular groove as a reserved deformation allowance, adapt to structural deformation and realize a good water stop waterproof effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a conventional rubber back-attached water stop of the prior art;
FIG. 3 is a schematic illustration of the installation of the present invention in a typical sinker seam configuration;
FIG. 4 is a schematic illustration of the installation of the present invention in a sinker seam configuration for special waterproofing requirements;
FIG. 5 is a schematic illustration of the installation of the present invention in a construction joint configuration;
wherein:
1. deformation zone 2 water stop zone
3. The anchoring area 4 is reserved with a deformation semicircular groove
5. Waterproof material for structural substrate 6
7. Protective layer 8 single-face combined reverse-adhesion type back-sticking water stop
9. Quick expansion type water-swelling rubber water stop strip for foam board 10
11. Double-component polysulfide caulking paste 12 middle buried water stop
13. A water receiving box.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1 to 5, the single-sided bonded reverse-adhesion type back-adhesion water stop tape with the simple structure comprises two fixing parts, a deformation part located in the middle is arranged between the two fixing parts, the fixing parts and the deformation part both comprise plastic sheets, a self-adhesion layer is arranged on one side, which is attached to structural concrete, of each plastic sheet, and an anti-adhesion coating film is paved on each self-adhesion layer.
The deformation part is a convex reserved deformation semi-circular groove 4, and the deformation part protrudes outwards towards one side of the concrete of the attaching structure.
The fixing mode of the fixing part and the structural concrete is pre-paving reverse adhesion construction or post-paving construction.
When the fixed part is constructed by a pre-paving reverse adhesion method, the construction process comprises the following steps:
firstly, laying a fixed part on a template;
then, pouring structural concrete, and reacting the anti-sticking coating film of the fixing part with newly poured concrete, so that the surface compactness of the concrete is enhanced, and the adhesion of self-adhesive and the concrete is improved;
and finally, the self-adhesive glue layer of the fixing part can be closely adhered with the concrete to form a chemical adhesion interface.
When the fixed part is constructed by a rear paving method, the construction process comprises the following steps:
firstly, curing the structural concrete until the structural concrete is hardened;
then, cleaning, polishing and checking the structural concrete;
and finally, removing the anti-sticking coating film of the fixing part, and directly sticking the exposed self-adhesive layer on the surface of the structural concrete.
The plastic sheet is one of EVA, HDPE, PVC, LDPE and ECB.
The fixed part adopts the same material polymer plastic sheet of taking from the viscose layer to carry out overlap joint and banding when overlap joint and banding.
Preferably, multi-specification lap belts such as female corners, male corners and flat plates are processed in factories according to lap joint or die corner requirements.
And a waterproof material 6 and a protective layer 7 are further paved on the structural concrete, and the waterproof material 6 and the protective layer 7 cover the single-face combined reverse-adhesion type back-attached water stop 8.
The deformation corresponds to a gap of the structural concrete.
And filling filler in the gap of the structural concrete.
The fixing part of the single-face combined reverse-adhesion type back-attached water stop belt 8 is fixed in the water stop area 2 and the anchoring area 3, and the reserved deformation semicircular groove 4 is positioned in the deformation area 1.
The self-adhesive layer is vinyl-terminated silicone rubber modified butyl rubber self-adhesive, can block concrete pores, has good adhesive property with a cement hardened body, and is resistant to water immersion without debonding. Preferably, the self-adhesive layer is formed by the following raw materials in parts by weight: 2 to 10 portions of chlorobutyl rubber, 20 to 30 portions of butyl rubber, 30 to 50 portions of polyisobutylene with the viscosity average molecular weight of 5 to 10 ten thousand, 20 to 40 portions of polyisobutylene with the viscosity average molecular weight of 1000 to 3000, 0.5 to 5 portions of nano silicon dioxide, 0.5 to 8 portions of nano magnesium oxide, 0.5 to 10 portions of silane coupling agent and 1 to 5 portions of antioxidant.
The anti-sticking coating is a high-molecular anti-sticking coating, and the active components of nano silicon dioxide and nano magnesium oxide which can react with concrete are introduced to react with cement hydration products, so that chemical bonding between interfaces is realized, the reliability of long-term bonding is ensured, and the anti-sticking coating is integrated with the surface of post-cast concrete, so that the bonding between the waterproof plate and the concrete after construction is firmer. The material is mainly formed by the following raw materials: acrylic resin emulsion, talcum powder, nano silicon dioxide, nano magnesium oxide, ultraviolet absorbent and antioxidant.
Wherein, the physical property index of the plastic sheet material should meet the following conditions: 1. tensile property, breaking tensile strength is more than or equal to 18MPa, and breaking elongation is more than or equal to 600 percent; 2. the tearing strength is more than or equal to 95kN/m; 3. water impermeability, no leakage under the test condition of 0.3MPa/24 h; 4. low-temperature bending property, and no crack under the test condition of-35 ℃; 5. heating for stretching amount, wherein the extension is less than or equal to 2mm, and the shrinkage is less than or equal to 6mm; 6. hot air aging, wherein the breaking tensile strength is more than or equal to 15MPa and the elongation at break is more than or equal to 550 percent under the test condition of 80 ℃ multiplied by 168; 7. alkali resistance, in saturated Ca (OH) 2 Under the test condition of solution multiplied by 168h, the breaking tensile strength is more than or equal to 16MPa, and the elongation at break is more than or equal to 550 percent; 8. artificial weathering at 550W/m 2 Under the test condition of multiplied by 250h, the tensile strength retention at break is more than or equal to 80 percent, and the tensile elongation retention at break is more than or equal to 70 percent; 9. the puncture strength is more than or equal to 300N; 10. combustion performance (flame retardant only) and combustion performance grade B 1 A smoke production characteristic grade s2, a combustion drop/particle grade d0 and a smoke toxicity grade t0.
The single-face combined reverse-adhesive back-adhered waterstop 8 is made of reverse-adhesive plastic through hot processing in a factory, a plastic plate cut according to the width of the waterstop is extruded and shaped by a die, then the arc part is locally heated, the heating temperature is not more than 150 ℃, the plate and the adhesive layer are prevented from melting and flowing, then the plate and the adhesive layer are naturally cooled and shaped, the die is removed, and the arc shape in the middle of the plastic plate is fixed.
The single-side combined reverse-adhesion type back-pasting water stop belt 8 is 50-70cm in width, is coiled with the length generally not less than 20m according to engineering requirements, is 1-2.5 cm in thickness, is 2-4cm in diameter of a deformed semicircle, and is close to the surface of structural concrete and contains a high-molecular self-adhesive layer and an anti-adhesion coating layer.
When the single-sided combined reverse-adhesion type back-adhered water stop 8 is constructed by adopting a pre-paving reverse-adhesion method, the anti-adhesion coating film can react with newly poured concrete, so that the surface compactness of the concrete is enhanced, and the adhesion of self-adhesive glue and the concrete is improved; the self-adhesive layer can be tightly self-adhered with concrete to form a chemical adhesive interface, and can be peeled and adhered with the concrete for multiple times, so that the self-healing property is good, and the peel strength is improved along with the increase of the strength of the concrete; the plastic plate is excellent in elasticity, wear resistance, aging resistance and tear resistance, strong in adaptive deformability and good in waterproof performance, can be closely integrated with a bridge and culvert structure and is deformed and coordinated, common water stop convex ribs in the water stop are omitted in an optimized mode, the water stop structure is simplified, and construction is facilitated.
Example one
The utility model provides a single face combines anti-formula back of body to paste waterstop that glues of simple system structure, includes two fixed parts, is provided with the deformation portion that is located in the middle of being located between two fixed parts, fixed part, deformation portion all include the plastic sheet, one side of plastic sheet laminating structure concrete is provided with from the viscose layer, the self-adhesive glue layer upper berth has antiseized to coat.
The deformation part is a convex reserved deformation semicircular groove 4, and the deformation part protrudes outwards towards one side of the concrete of the attaching structure.
The fixing mode of the fixing part and the structural concrete is pre-paving reverse adhesion construction or post-paving construction.
When the fixed part is constructed by a pre-paving reverse adhesion method, the construction process comprises the following steps:
firstly, laying a fixed part on a template;
then, pouring structural concrete, and reacting the anti-adhesion coating film of the fixing part with newly poured concrete to enhance the surface compactness of the concrete and improve the adhesion of self-adhesive and the concrete;
and finally, the self-adhesive glue layer of the fixed part can be tightly adhered with the concrete to form a chemical adhesion interface.
When the fixed part is constructed by a rear paving method, the construction process comprises the following steps:
firstly, curing the structural concrete until the structural concrete is hardened;
then, cleaning, polishing and checking the structural concrete;
and finally, removing the anti-sticking coating film of the fixing part, and directly sticking the exposed self-adhesive layer on the surface of the structural concrete.
The plastic sheet is one of EVA, HDPE, PVC, LDPE and ECB.
And when the fixing part is in lap joint and edge sealing, the fixing part is in lap joint and edge sealing by adopting the same-material high polymer plastic sheet with the self-adhesive layer.
And a waterproof material 6 and a protective layer 7 are further paved on the structural concrete, and the waterproof material 6 and the protective layer 7 cover the single-sided combined reverse-adhesion type back-to-back water stop 8.
The deformation portion corresponds to a gap of the structural concrete.
And filling materials are filled in the gaps of the structural concrete.
The fixing part of the single-face combined reverse-adhesion type back-attached water stop belt 8 is fixed in the water stop area 2 and the anchoring area 3, and the reserved deformation semicircular groove 4 is positioned in the deformation area 1.
In the embodiment, common settlement joints are arranged between the structural base layers 5, and the frame culvert side walls adopt the single-face combined anti-adhesion type back-attached water stop belt with the simple structure.
In the embodiment, a pre-laying reverse adhesion method is adopted for construction, and the back-attached water stop belt is laid and fixed on the template. In the example, the single-sided combined reverse-adhesion type back-adhered water stop belt with the simple structure is prepared in a factory by adopting an EVA reverse-adhesion type waterproof plate, the water stop belt is 600mm in width, 2.5mm in thickness and 10mm in semicircular radius.
The anti-sticking coating of the water stop belt is a high-molecular anti-sticking coating, active components of nano silicon dioxide and nano magnesium oxide which can react with concrete are introduced to react with a cement hydration product, chemical bonding between interfaces is realized, the reliability of long-term bonding is ensured, the anti-sticking coating is integrated with the surface of post-poured concrete, the self-sticking layer is vinyl-terminated silicon rubber modified butyl rubber self-adhesive, concrete pores can be blocked, the anti-sticking coating can form chemical bonding with the concrete in a tight self-sticking way and is resistant to water soaking without debonding, the self-healing property is good, the elasticity, the wear resistance, the aging resistance and the tear resistance of an EVA plate are excellent, the adaptive deformation capacity is strong, the waterproof property is good, and the anti-sticking coating can be tightly combined with a bridge and culvert structure to form a whole body and deform coordinately.
The settlement joint in the embodiment is filled with a two-component polysulfide caulking paste 11, a quick expansion type water-swelling rubber water stop strip 10 and a foam plate 9 from bottom to top.
Example two
The utility model provides a single face of brief system structure combines anti-formula back of body to paste waterstop that glues, includes two fixed parts, is provided with the deformation portion that is located the centre between two fixed parts, fixed part, deformation portion all include the plastic sheet, one side of plastic sheet laminating structure concrete is provided with the self-adhesion glue film, the self-adhesion glue film upper berth has antiseized to coat.
The deformation part is a convex reserved deformation semicircular groove 4, and the deformation part protrudes outwards towards one side of the concrete of the attaching structure.
The fixing mode of the fixing part and the structural concrete is pre-paving reverse adhesion construction or post-paving construction.
When the fixed part is constructed by a pre-paving reverse adhesion method, the construction process comprises the following steps:
firstly, laying a fixed part on a template;
then, pouring structural concrete, and reacting the anti-sticking coating film of the fixing part with newly poured concrete, so that the surface compactness of the concrete is enhanced, and the adhesion of self-adhesive and the concrete is improved;
and finally, the self-adhesive glue layer of the fixed part can be tightly adhered with the concrete to form a chemical adhesion interface.
When the fixing part is constructed by a rear-paving method, the construction process comprises the following steps:
firstly, curing the structural concrete until the structural concrete is hardened;
then, cleaning, polishing and checking the structural concrete;
and finally, removing the anti-sticking coating film of the fixing part, and directly sticking the exposed self-adhesive layer on the surface of the structural concrete.
The plastic sheet is one of EVA, HDPE, PVC, LDPE and ECB.
The fixed part adopts the same material polymer plastic sheet of taking from the viscose layer to carry out overlap joint and banding when overlap joint and banding.
And a waterproof material 6 and a protective layer 7 are further paved on the structural concrete, and the waterproof material 6 and the protective layer 7 cover the single-face combined reverse-adhesion type back-attached water stop 8.
The deformation portion corresponds to a gap of the structural concrete.
And filling materials are filled in the gaps of the structural concrete.
The fixing part of the single-face combined reverse-adhesion type back-attached water stop belt 8 is fixed in the water stop area 2 and the anchoring area 3, and the reserved deformation semicircular groove 4 is positioned in the deformation area 1.
The invention is a schematic diagram of a settlement joint structure adopting the special waterproof requirement of the invention. The frame culvert side wall with the overpass function adopts the simple-system-structured single-face combined reverse-adhesion type back-pasting waterstop, and the specification and the size of the used waterstop are the same as those in the example 1.
And (3) adopting a rear paving method for construction, cleaning, polishing and checking the cured side wall concrete base layer, and directly sticking the single-sided bonding back-sticking water stop belt with the anti-sticking film removed on the surface of the concrete structure. The single-face combined anti-sticking back-pasting water stop waterproof structure with the simple structure has good self-healing performance, overcomes the adverse effects of dynamic load and the like, and is formed into a long-term stable whole.
The settlement joint in this embodiment is filled with a two-component polysulfide caulk 11, a foam sheet 9. A middle-buried water stop belt 12 is arranged between the two structural base layers 5, and the two-component polysulfide caulk paste 11 and the foam plate 9 are positioned on the upper side and the lower side of the middle-buried water stop belt 12.
Preferably, a mounting groove is further formed between the two structural base layers 5, and a water receiving box 13 is arranged in the mounting groove.
The water receiving box 13 and the mounting groove are fixed through the two-component polysulfide caulk paste 11.
The anti-sticking type back-pasted water stop self structural membrane is utilized to react with concrete to form a long-term stable chemical bonding interface, the skin type waterproof structure can block a water seepage passage, optimally leave away water stop convex ribs, combine a water stop area and an anchoring area, simplify the structure of the water stop, facilitate pre-paving anti-sticking construction, reserve a deformation semicircular groove as a reserved deformation allowance, adapt to structural deformation and realize a good water stop waterproof effect.
Claims (6)
1. The utility model provides a single face of simple and systematic structure combines anti-formula back of body to paste waterstop which characterized in that: the anti-sticking structure comprises two fixing parts, wherein a deformation part is arranged between the two fixing parts, the fixing parts and the deformation part both comprise plastic sheets, a self-sticking adhesive layer is arranged on one side, which is attached to the structural concrete, of each plastic sheet, and an anti-sticking coating film is paved on each self-sticking adhesive layer;
the self-adhesive layer is vinyl-terminated silicone rubber modified butyl rubber self-adhesive, blocks concrete pores, has good adhesive property with a cement hardened body, is resistant to water soaking and does not debond, and preferably is formed by the following raw materials in parts by weight: 2 to 10 portions of chlorobutyl rubber, 20 to 30 portions of butyl rubber, 30 to 50 portions of polyisobutylene with viscosity average molecular weight of 5 to 10 ten thousand, 20 to 40 portions of polyisobutylene with viscosity average molecular weight of 1000 to 3000, 0.5 to 5 portions of nano silicon dioxide, 0.5 to 8 portions of nano magnesium oxide, 0.5 to 10 portions of silane coupling agent and 1 to 5 portions of antioxidant;
the anti-sticking coating is a high-molecular anti-sticking coating, and the anti-sticking coating is prepared by introducing active components of nano silicon dioxide and nano magnesium oxide which can react with concrete to react with a cement hydration product, so that chemical bonding between interfaces is realized, the reliability of long-term bonding is ensured, and the anti-sticking coating is integrated with the surface of post-cast concrete, so that the waterproof plate is bonded with the concrete more firmly after construction, and the anti-sticking coating is mainly formed by the following raw materials: acrylic resin emulsion, talcum powder, nano silicon dioxide, nano magnesium oxide, ultraviolet absorbent and antioxidant;
the deformation part is a convex reserved deformation semicircular groove (4), and the deformation part is convex towards one side of the concrete of the attaching structure;
the structural concrete is also paved with a waterproof material (6) and a protective layer (7), and the waterproof material (6) and the protective layer (7) cover the single-sided combined reverse-adhesion type back-attached water stop (8);
the deformation portion corresponds to a gap of the structural concrete.
2. The simple-structured single-face-bonded reverse-adhesion type back-attached water stop strip according to claim 1, wherein: the fixing mode of the fixing part and the structural concrete is pre-paving reverse adhesion construction or post-paving construction.
3. The simple-structured single-face-bonded reverse-adhesion type back-attachment water stop strip according to claim 2, wherein: when the fixed part is constructed by a pre-paving reverse adhesion method, the construction process comprises the following steps:
firstly, laying a fixed part on a template;
then, pouring structural concrete, and reacting the anti-adhesion coating film of the fixing part with newly poured concrete to enhance the surface compactness of the concrete and improve the adhesion of self-adhesive and the concrete;
and finally, the self-adhesive glue layer of the fixing part can be closely adhered with the concrete to form a chemical adhesion interface.
4. The simple-structured single-face-bonded reverse-adhesion type back-attachment water stop strip according to claim 2, wherein: when the fixing part is constructed by a rear-paving method, the construction process comprises the following steps:
firstly, curing the structural concrete until the structural concrete is hardened;
then, cleaning, polishing and checking the structural concrete;
and finally, removing the anti-sticking coating film of the fixing part, and directly sticking the exposed self-adhesive layer on the surface of the structural concrete.
5. The simple-structured single-face-bonded reverse-adhesion type back-attachment water stop strip according to claim 2, wherein: the plastic sheet is one of EVA, HDPE, PVC, LDPE and ECB.
6. The simple-structured single-face-bonded reverse-adhesion type back-attachment water stop strip according to claim 5, wherein: the fixed part adopts the same material polymer plastic sheet of taking from the viscose layer to carry out overlap joint and banding when overlap joint and banding.
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