Waterproof coiled material

Abstract

The waterproof coiled material comprises a main body section and an isolating membrane, the main body section comprises a first protective layer, a first adhesive layer, a first tire base layer, a second adhesive layer, a second tire base layer, a third adhesive layer and a heat insulation and cooling membrane layer which are sequentially stacked, and the first protective layer is a sand layer or fiber cloth; the isolating membrane is arranged in the end part of the main body section so as to divide the end part of the main body section into an upper lap joint layer and a lower lap joint layer; and the isolating membrane is connected with the second adhesive layer. According to the utility model, the sand layer is arranged on the first adhesive layer, when the waterproof roll is applied, one end of one waterproof roll is lapped between the upper lapping layer and the lower lapping layer of the other waterproof roll to form the lapping part; according to the waterproof coiled material, the lap joint part is heated, so that the first adhesive layer is melted, sand grains of the sand layer sink into the first adhesive layer, the melted first adhesive layer and the upper lap joint layer are bonded together, and a gap is prevented from being reserved between the first adhesive layer and the upper lap joint layer, so that the bonding strength between the two waterproof coiled materials is improved, and the overall waterproof effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof materials, in particular to a waterproof coiled material. Background Art

[0002] In the construction industry, with the deepening of urbanization and the increasing scarcity of land resources, the development and utilization of underground space has become particularly important. Underground construction not only effectively conserves surface space but also provides a variety of uses, such as parking, commercial facilities, and civil air defense projects. However, waterproofing underground buildings has always been a major challenge during construction. Due to the influence of groundwater levels and the complexity of building structures, leakage in underground waterproofing projects is a common problem. This not only affects the normal use of buildings, but can also lead to structural safety issues and increase maintenance costs.

[0003] To address this problem, the pre-laid reverse-adhesive construction process has emerged. This technology involves pre-laying waterproofing membranes before concrete structure construction, and then pouring concrete on them, so that the membranes are tightly bonded to the concrete, forming a sealed waterproof layer. This method is favored by the market due to its excellent waterproofing effect and simple construction process. However, the pre-laid reverse-adhesive membranes in the existing technology are usually bonded by self-adhesion at the overlapped parts. Due to the presence of wrinkles and dust pollution on the surface of the membranes, the adhesion is not tight, resulting in a decrease in their waterproof performance, thereby affecting the overall waterproofing effect. Utility Model Content

[0004] The embodiment of the present utility model provides a waterproof roll material, which at least partially solves the problem in the prior art that overlapping parts are not tightly bonded, thereby affecting the waterproof effect.

[0005] Specifically, the utility model provides a waterproof roll material, including a main body section and an isolation membrane, the main body section includes a first protective layer, a first adhesive layer, a first tread base layer, a second adhesive layer, a second tread base layer, a third adhesive layer and a heat insulation and cooling membrane layer stacked in sequence, the first protective layer is a sand layer or a fiber cloth; the isolation membrane is arranged in the end of the main body section to separate the end of the main body section into an upper overlapping layer and a lower overlapping layer; the isolation membrane is connected to the second adhesive layer.

[0006] Optionally, the isolation membrane is provided on a side of the second rubber layer facing the first tread base layer to form an upper surface layer of the lower overlapping layer, and the isolation membrane is spaced apart from the first tread base layer;

[0007] Alternatively, the isolation membrane is arranged in the second rubber layer to separate the second rubber layer into an upper rubber layer and a lower rubber layer, and the upper rubber layer is connected to the first tire base layer; the isolation membrane includes an upper isolation sublayer and a lower isolation sublayer arranged at intervals, the upper isolation sublayer is connected to the upper rubber layer, and the lower isolation sublayer is connected to the lower rubber layer.

[0008] Optionally, the isolation membrane is provided at one end of the main body segment; and an isolation layer is bonded to the first adhesive layer at the end of the main body segment away from the isolation membrane;

[0009] Alternatively, the isolation membrane is provided at both ends of the main body segment.

[0010] Optionally, the length of the lower overlapping layer is 83-103 cm; the length of the isolation layer is 80-100 cm.

[0011] Optionally, the isolation layer is a PE silicone oil film or a PP silicone oil film;

[0012] And / or, the isolation film is a PE silicone oil film or a PP silicone oil film.

[0013] Optionally, the first protective layer is formed by sand particles attached to the first adhesive layer, and the particle size of the sand particles is 25-35 mesh; the sand particles include one or more of river sand, chemical sand, sintered sand, and corundum.

[0014] Optionally, the first rubber layer, the second rubber layer and the third rubber layer are all modified asphalt rubber layers, and the second tread base layer is filament polyester felt;

[0015] And / or, the first tread base layer is one of a polyethylene film, a polypropylene film, a nano-modified polyethylene film, and a polyethylene-modified PET film;

[0016] And / or, the heat insulation and cooling film layer is a reflective heat insulation film;

[0017] And / or, the fiber cloth is a non-woven fabric.

[0018] Optionally, a protective layer is provided on the side of the first protective layer facing away from the first adhesive layer, and the protective layer is made of an interface protective agent, which includes one or more of acrylic acid, styrene-acrylate copolymer, vinyl acetate-acrylate copolymer, and versatate-acrylate copolymer.

[0019] The beneficial effects of the present invention are:

[0020] In the waterproof roll material and construction method provided by the utility model, since a sand layer is provided on the first adhesive layer, when used, one end of one waterproof roll material is overlapped between the upper overlapping layer and the lower overlapping layer of another waterproof roll material to form an overlapping portion; heating the overlapping portion can melt the first adhesive layer, and the sand particles of the sand layer sink into the first adhesive layer, so that the melted first adhesive layer and the upper overlapping layer are bonded together, avoiding a gap between the first adhesive layer and the upper overlapping layer, thereby improving the bonding strength between the two waterproof roll materials and enhancing the overall waterproof effect.

[0021] Furthermore, the first base layer, the second base layer, the first adhesive layer, the second adhesive layer and the third adhesive layer are stacked to form a two-tire, three-adhesive waterproof membrane. One construction can achieve two waterproof effects, thereby improving the tensile strength, elongation, dimensional stability, impermeability and other properties of the waterproof membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic structural diagram of a waterproof roll in one embodiment of the present invention;

[0024] Figure 2 This is a schematic structural diagram of a waterproof roll in another embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a waterproof membrane in another embodiment of the present invention.

[0026] In the figure: 100, main section, 101, upper overlapping layer, 102, lower overlapping layer, 110, first protective layer, 120, first rubber layer, 130, first tread base layer, 140, second rubber layer, 141, upper rubber layer, 142, lower rubber layer, 150, thermal insulation and cooling film layer, 160, isolation layer, 170, second tread base layer, 180, third rubber layer, 190, protective layer, 200, isolation film, 210, upper isolation sublayer, 220, lower isolation sublayer. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Figure 1 This is a schematic structural diagram of a waterproof roll in one embodiment of the present invention. Figure 1 As shown, and reference Figures 2 to 3 The present invention provides a waterproof membrane comprising a main body section 100 and an isolation layer 160. The main body section 100 comprises, from top to bottom, a first protective layer 110, a first adhesive layer 120, a first base layer 130, a second adhesive layer 140, a second base layer 170, a third adhesive layer 180, and a thermal insulation and cooling membrane layer 150. The first protective layer 110 is a sand layer. The isolation membrane 200 is disposed within the end of the main body section 100 to separate the end of the main body section 100 into an upper overlapping layer 101 and a lower overlapping layer 102. The isolation membrane 200 is connected to the second adhesive layer 140.

[0031] In the embodiment of the present invention, since a sand layer is provided on the first adhesive layer 120, one end of one waterproof membrane is overlapped between the upper overlapping layer 101 and the lower overlapping layer 102 of another waterproof membrane during application to form an overlapping portion; heating the overlapping portion can melt the first adhesive layer 120, and the sand particles of the sand layer sink into the first adhesive layer 120, so that the melted first adhesive layer 120 and the upper overlapping layer 101 are bonded together, avoiding a gap between the first adhesive layer 120 and the upper overlapping layer 101, thereby improving the bonding strength between the two waterproof membranes and enhancing the overall waterproof effect.

[0032] Furthermore, the first tread base layer 130, the second tread base layer 170, the first adhesive layer 120, the second adhesive layer 140 and the third adhesive layer 180 are stacked to form a two-tread, three-adhesive waterproof membrane, which achieves two waterproof effects in one construction, thereby improving the tensile strength, elongation, dimensional stability, impermeability and other properties of the waterproof membrane.

[0033] In one embodiment of the present invention, the separator 200 is disposed on the side of the second adhesive layer 140 facing the first tread base layer 130 to form the upper surface layer of the lower overlapping layer 102. The separator 200 is spaced apart from the first tread base layer 130. During use, the separator 200 can be removed to allow the second adhesive layer 140 to be bonded to another waterproof membrane.

[0034] like Figure 2 As shown, in an alternative embodiment of the present invention, the separator 200 is disposed within the second rubber layer 140 to separate the second rubber layer 140 into an upper rubber layer 141 and a lower rubber layer 142. The upper rubber layer 141 is connected to the first tread base layer 130. The separator 200 includes an upper insulating sub-layer 210 and a lower insulating sub-layer 220 spaced apart. The upper insulating sub-layer 210 is connected to the upper rubber layer 141, and the lower insulating sub-layer 220 is connected to the lower rubber layer 142. This arrangement ensures that the sides of the upper and lower overlapping layers 101 and 102 that are adjacent to each other are both adhesive layers, thereby improving bonding strength.

[0035] In one embodiment of the present invention, the isolation membrane 200 is arranged at one end of the main section 100; at the end of the main section 100 away from the isolation membrane 200, an isolation layer 160 is adhered to the first adhesive layer 120; when in use, the isolation layer 160 on the first adhesive layer 120 of one waterproof membrane is removed, and the isolation membrane 200 on the upper overlapping layer 101 and the lower overlapping layer 102 of the other waterproof membrane is removed, and then the end of the waterproof membrane with the isolation layer 160 removed is overlapped between the upper overlapping layer 101 and the lower overlapping layer 102 of the other waterproof membrane to form two overlapping surfaces, thereby improving the peel strength of the overlapping part, so that the peel strength of the waterproof membrane and the waterproof membrane at the overlapping part is increased by more than 50% under the conditions of no treatment, heat treatment and immersion treatment, thereby ensuring the safety of the waterproof membrane at the joint.

[0036] like Figure 3 As shown, in an alternative embodiment of the present invention, the isolation membrane 200 is provided at both ends of the main section 100. This forms an upper overlapping layer 101 and a lower overlapping layer 102 at both ends of each waterproof membrane main section 100. During use, the upper overlapping layers 101 and the lower overlapping layers 102 of the two waterproof membranes are alternately stacked to form three overlapping surfaces, further improving the peel strength of the overlapping portions.

[0037] In one embodiment of the present invention, the length of the lower overlapping layer 102 is 83-103 cm; the length of the isolation layer 160 is 80-100 cm, to ensure sufficient overlapping length.

[0038] In one embodiment of the present invention, the isolation layer 160 is a PE silicone film or a PP silicone film with dotted lines. The isolation film 200 is a PE silicone film or a PP silicone film with dotted lines;

[0039] In one embodiment of the present invention, the first protective layer 110 is formed by sand particles attached to the first adhesive layer 120. The sand particles have a particle size of 25-35 mesh, preferably 30 mesh. The sand particles include one or more of river sand, chemical sand, sintered sand, and corundum.

[0040] A second tread base layer 170 and a third tread base layer 180 are also provided between the second tread base layer 140 and the thermal insulation and cooling film layer 150. The third tread base layer 180 is located between the thermal insulation and cooling film layer 150 and the second tread base layer 170. The first tread base layer 120, the second tread base layer 140 and the third tread base layer 180 are all modified asphalt tread layers. The modified asphalt tread layer 170 is an ion bond-grade self-adhesive modified asphalt tread layer. The modifier is SBS, SBR, MVQ, IIR, CR, etc. The ion bond-grade self-adhesive modified asphalt tread layer has a low temperature temperature of -20°C to -35°C without cracks, and does not flow at high temperatures of 70 to 100°C, with excellent performance. Preferably, the modified asphalt tread layer is the ionic modified asphalt rubber compound in the prior application with application number 202410076111.4. The second tread base layer 170 is a filament polyester felt with a specification of 80-350g / m 2 , with a tensile force ≥ 300-1000N / 50mm. The first tread base layer 130 is one of PE100-RC ultra-tough, crack-resistant polyethylene film, polypropylene film, nano-modified polyethylene film, and polyethylene-modified PET film, with an elongation ≥ 50%. The thermal insulation and cooling film layer 150 is a reflective insulation film, preferably a coated reflective insulation film. The fiber cloth is a non-woven fabric made of one or more of polypropylene, polyester, nylon, polyester fiber, and polypropylene fiber.

[0041] During the preparation of the waterproof membrane, modified asphalt adhesive is first applied to both sides of the second tread base layer 170 to form a second adhesive layer 140 and a third adhesive layer 180. A thermal insulation and cooling membrane layer 150 is then attached to one side of the third adhesive layer 180. An isolation layer 160 is then attached to one end of the second adhesive layer 140. The first tread base layer 130 is then attached to the second adhesive layer 140 and cooled. The isolation layer 160 is located between the first tread base layer 130 and the second adhesive layer 140. A modified asphalt adhesive layer is then applied to the first tread base layer 130 to form a first adhesive layer 120. Sand is then evenly spread over the first adhesive layer 120 and compacted by calendering to form a first protective layer 110, thus completing the waterproof membrane.

[0042] By combining layered rolling, pouring and cooling of high-strength and high-elongation base materials, a two-layer three-glue waterproof membrane is formed. One construction achieves two waterproof purposes, making the tensile strength and elongation of the waterproof membrane more than 100% higher than that of ordinary membranes, and the nail rod tearing strength increased by more than 300%. Therefore, it can effectively prevent the waterproof membrane from being damaged when tying steel bars at the construction site.

[0043] In one embodiment of the present invention, a protective layer 190 is provided on the side of the first protective layer 110 facing away from the first adhesive layer 120. The protective layer 190 is made of an interface protective agent, and the interface protective agent includes one or more of acrylic acid, styrene-acrylate copolymer, vinyl acetate-acrylate copolymer, and versatate-acrylate copolymer.

[0044] During application, under the pressure of cast-in-place concrete, the protective layer will dissolve in the waterproof membrane structure, and the colloid will penetrate the sand surface or fiber gaps and bond with the post-cast concrete to form a full bond, which can form a sealed interface with no water leakage under a static water pressure of 100M, greatly improving the waterproof performance.

[0045] The present invention also provides a construction method for a waterproof roll, which is applied to the waterproof roll in any of the above embodiments. The construction method comprises the following steps:

[0046] Remove the isolation layer 160 of the waterproof roll, and overlap the end of one waterproof roll between the upper overlapping layer 101 and the lower overlapping layer 102 of another waterproof roll to form an overlapping portion;

[0047] heating the overlapping portion to melt the first adhesive layer 120 located at the overlapping portion;

[0048] The temperature of the overlapped portion is lowered to allow the first adhesive layer 120 to cool and solidify, thereby completing the overlap of the two waterproof membranes.

[0049] Specifically, during application, the base slab concrete layer of the underground project is first constructed, with a thickness of 100-150mm. Once the base slab concrete surface has initially hardened and is ready for standing work, the waterproof membrane is laid with the protective layer facing upward. The membrane's longitudinal long sides are double-lapped, separating the upper and lower lap layers 101, 102. The upper and lower lap layers 101, 102 of another waterproof membrane are then cross-lapped with the membrane to prevent overlap. The membranes are then aligned and positioned. The isolation layer 160 and isolation film 200 are then removed, leaving the upper and lower lap layers 101, 102 of the two membranes interlaced and bonded. The first adhesive layer 120 is then melted by fire or electric heating, allowing the sand particles in the sand layer to sink into the first adhesive layer 120. The adhesive layer then returns to the surface, and the two membranes are bonded together to form a waterproof layer. After the waterproof layer is constructed, the base slab structural reinforcement can be applied.

[0050] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A waterproof roll, characterized in that: It includes a main body section and an isolation membrane, the main body section includes a first protective layer, a first rubber layer, a first tread base layer, a second rubber layer, a second tread base layer, a third rubber layer and a heat-insulating and cooling membrane layer stacked in sequence, the first protective layer is a sand layer or a fiber cloth; the isolation membrane is arranged in the end of the main body section to separate the end of the main body section into an upper overlapping layer and a lower overlapping layer; the isolation membrane is connected to the second rubber layer.

2. The waterproof roll according to claim 1, characterized in that: The isolation membrane is provided on a side of the second rubber layer facing the first tread base layer to form an upper surface layer of the lower lap layer, and the isolation membrane is spaced apart from the first tread base layer; Alternatively, the isolation membrane is arranged in the second rubber layer to separate the second rubber layer into an upper rubber layer and a lower rubber layer, and the upper rubber layer is connected to the first tire base layer; the isolation membrane includes an upper isolation sublayer and a lower isolation sublayer arranged at intervals, the upper isolation sublayer is connected to the upper rubber layer, and the lower isolation sublayer is connected to the lower rubber layer.

3. The waterproof roll according to claim 1, characterized in that: The isolation film is arranged at one end of the main body segment; at the end of the main body segment away from the isolation film, an isolation layer is bonded to the first adhesive layer; Alternatively, the isolation membrane is provided at both ends of the main body segment.

4. The waterproof roll according to claim 3, characterized in that: The length of the lower overlapping layer is 83-103 cm; the length of the isolation layer is 80-100 cm.

5. The waterproof roll according to claim 3, characterized in that: The isolation layer is a PE silicone oil film or a PP silicone oil film; And / or, the isolation film is a PE silicone oil film or a PP silicone oil film.

6. The waterproof roll according to claim 1, characterized in that: The first protective layer is formed by sand grains attached to the first adhesive layer; the sand grains include one of river sand, chemical sand, sintered sand, and corundum.

7. The waterproof roll according to claim 1, characterized in that: The first rubber layer, the second rubber layer and the third rubber layer are all modified asphalt rubber layers, and the second tread base layer is filament polyester felt; And / or, the first tread base layer is one of a polyethylene film, a polypropylene film, a nano-modified polyethylene film, and a polyethylene-modified PET film; And / or, the heat insulation and cooling film layer is a reflective heat insulation film; And / or, the fiber cloth is a non-woven fabric.

8. The waterproof roll according to claim 1, characterized in that: A protective layer is provided on the side of the first protective layer facing away from the first adhesive layer, and the protective layer is made of an interface protective agent.

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