A waterproofing membrane and method of construction thereof

Abstract

The present application relates to waterproof construction technology field, specifically to a kind of waterproof roll and its construction method.The waterproof roll includes roll body, and roll body is equipped with first connecting portion and / or second connecting portion;First connecting portion is connected with the second connecting portion of adjacent waterproof roll, and second connecting portion is connected with the first connecting portion of adjacent waterproof roll;First connecting portion includes first base material, at least two insertion slots in first base material and recess between adjacent two insertion slots, and second connecting portion includes second base material, at least two insertion parts in second base material and convex part between adjacent two insertion parts, the depth direction of insertion slot and recess is parallel to the thickness direction of roll body, insertion slot and insertion part are connected with stopper, recess and convex part are connected with stopper;Recess bottom and the top surface between convex part are equipped with adhesive layer, and adhesive layer is the structure layer that metal dense net and adhesive are made into by electromagnetic induction welding.

Description

Technical Field

[0001] This invention relates to the field of waterproofing construction technology, and more specifically, to a waterproof membrane and its construction method. Background Technology

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up and serve as a leak-proof connection between the foundation and the building. They are the first line of defense for waterproofing the entire project and play a vital role in the overall project.

[0003] After the waterproof membrane is laid, the joints between the membrane sections need to be heated and bonded. Currently, the heating and bonding of the waterproof membrane joints is done by workers using handheld heating devices, which is dangerous, unsafe, and results in uneven heating and poor bonding. Summary of the Invention

[0004] In view of this, the present invention provides a waterproof membrane and its construction method, aiming to improve the problems of poor adhesion and unsafe construction of existing waterproof membranes.

[0005] In a first aspect, the present invention provides a waterproof membrane, comprising a membrane body, wherein the membrane body is provided with a first connecting portion and / or a second connecting portion; The first connecting portion is connected to the second connecting portion of the adjacent waterproof membrane, and the second connecting portion is connected to the first connecting portion of the adjacent waterproof membrane; The first connecting portion includes a first substrate, at least two slots formed on the first substrate, and a groove disposed between two adjacent slots. The second connecting portion includes a second substrate, at least two insertion portions formed on the second substrate, and a protrusion disposed between two adjacent insertion portions. The groove depth direction of the slots and the grooves is parallel to the thickness direction of the roll body. The slots are engaged with the insertion portion stop, and the grooves are engaged with the protrusion stop. An adhesive layer is provided between the bottom of the groove and the top surface of the protrusion. The adhesive layer is a structural layer formed by electromagnetic induction welding of a dense metal mesh and an adhesive.

[0006] Preferably, the dense metal mesh is made of a tin-lead alloy material.

[0007] Preferably, the adhesive includes an adhesive and a curing agent.

[0008] Preferably, the curing agent is an aliphatic amine curing agent.

[0009] Preferably, the curing agent comprises ethylenediamine and / or diethylenetriamine.

[0010] Preferably, the roll body is integrally formed with the first substrate, the second substrate, the insert portion, and the protrusion portion.

[0011] Secondly, the present invention provides a method for constructing a waterproof membrane, applied to the waterproof membrane provided in the first aspect of the present invention, comprising the following steps: Step 1: Clean and pre-treat the substrate surface; Step 2: Lay and adhere multiple waterproof membranes to the base surface, wherein epoxy resin adhesive and curing agent are poured into the groove at a weight ratio of 10:3 and mixed, the plug-in part is inserted into the slot and the protrusion is inserted into the groove, so that the first connecting part of the waterproof membrane is connected to the second connecting part of the adjacent waterproof membrane. Step 3: Use a magnetic field changer to heat the connection between the groove and the protrusion, so that the first connection part and the second connection part are bonded together.

[0012] Preferably, the pretreatment of the substrate in step one includes: Detect defects in the laid substrate, and fill or chisel the detected defects; and The inside and outside corners and pipe root areas of the laying base surface are rounded.

[0013] Compared with the prior art, the waterproof membrane and its construction method provided by the present invention achieve at least the following beneficial effects: In the waterproof membrane and its construction method provided by this invention, before electromagnetic induction welding, the groove can serve as a cavity for the adhesive. The insert part is inserted into the slot, and the protrusion is inserted into the groove, so that the first connecting part of the waterproof membrane is connected to the second connecting part of the adjacent waterproof membrane. At this time, the connection between the first connecting part and the second connecting part is a detachable connection. During the electromagnetic induction welding process, the metal mesh generates current due to the change in magnetic flux, generating heat. The adhesive receives this heat, melts and mixes, and reacts to generate a large amount of heat, making the temperature at the gap between the groove and the protrusion reach the melting point of the metal mesh, causing the hot metal mesh to melt into liquid. In this process, the liquid metal mesh and the adhesive reactants fuse together, distributing heat evenly and filling the gap between the bottom of the groove and the top of the protrusion. After cooling and solidification, the fusion of the liquid metal mesh and the adhesive reactants forms an adhesive layer, achieving adhesion between the first and second substrates. This adhesive layer has strong adhesion, high hardness, reliable and stable performance, completely filling the gaps between adjacent waterproof membranes and blocking the leakage path between adjacent waterproof membranes, providing a strong bonding effect. In addition, the connection and construction process of the waterproof membrane provided in this embodiment does not require workers to hold high-temperature baking devices, ensuring worker safety.

[0014] Of course, any product implementing this invention need not necessarily achieve all of the technical effects described above at the same time.

[0015] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0017] Figure 1 The diagram shown is a schematic representation of the unfolded waterproof membrane provided in an embodiment of the present invention. Figure 2 The figure shown is a cross-sectional view of the first connecting portion in an embodiment of the present invention; Figure 3 The figure shown is a cross-sectional view of the second connecting portion in an embodiment of the present invention; Figure 4 The figure shown is a cross-sectional view of the first connecting part and the second connecting part after connection in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-Roll body, 4-First substrate, 5-Slot, 6-Groove, 7-Second substrate, 8-Interceptor, 9-Protrusion, 11-Adhesive layer, 10-Metal mesh. Detailed Implementation

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0020] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0021] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0022] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0023] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0025] Figure 1 The diagram shown is a schematic representation of the unfolded waterproof membrane provided in an embodiment of the present invention. Figure 2 The figure shown is a cross-sectional view of the first connecting portion in an embodiment of the present invention. Figure 3 The figure shown is a cross-sectional view of the second connecting portion in an embodiment of the present invention. Figure 4 The figure shown is a cross-sectional view of the first connecting part and the second connecting part after connection in an embodiment of the present invention.

[0026] Please refer to Figures 1 to 4This invention provides a waterproof membrane, including a membrane body 1. The membrane body 1 has a first connecting portion and / or a second connecting portion. The first connecting portion is connected to a second connecting portion of an adjacent waterproof membrane, and the second connecting portion is connected to a first connecting portion of an adjacent waterproof membrane. The first connecting portion includes a first substrate 4, at least two slots 5 formed on the first substrate 4, and a groove 6 disposed between two adjacent slots 5. The second connecting portion includes a second substrate 7, at least two insertion portions 8 formed on the second substrate 7, and a protrusion 9 disposed between two adjacent insertion portions 8. The groove depth direction of the slots 5 and the groove 6 is parallel to the thickness direction of the membrane body 1. The slots 5 are connected to the insertion portions 8 with a stop, and the groove 6 is connected to the protrusion 9 with a stop. An adhesive layer 11 is provided between the bottom of the groove 6 and the top surface of the protrusion 9. The adhesive layer 11 is a structural layer formed by electromagnetic induction welding of a dense metal mesh 10 and an adhesive.

[0027] It should be understood that the roll body 1 can be a rectangular, triangular, or other polygonal shape, or a circular, annular, or other shape with curved edges. The embodiments of this application are not limited to the shape of the waterproof roll. Furthermore, the waterproof roll is a planar structural component, meaning its thickness dimension is much smaller than its surface dimension. Generally, both the first connecting portion and the second connecting portion are located at one edge of the roll body 1 near the adjacent roll body 1.

[0028] In specific implementation, the roll body 1 being provided with a first connecting portion and / or a second connecting portion means that the roll body 1 is provided with a first connecting portion, or the roll body 1 is provided with a second connecting portion, or the roll body 1 is provided with both a first connecting portion and a second connecting portion. Taking multiple waterproof rolls laid sequentially along a left-right straight direction as an example, the waterproof roll in the middle has a first connecting portion near its left edge, which is used to connect with the second connecting portion of the adjacent waterproof roll; the waterproof roll in the middle also has a second connecting portion near its right edge, which is used to connect with the first connecting portion of the adjacent waterproof roll; while the waterproof roll on the far left has a second connecting portion on its right edge, which is used to connect with the first connecting portion of the adjacent waterproof roll. The waterproof roll on the far left has no adjacent waterproof roll on its left side, so it does not need to have a first connecting portion; similarly, the waterproof roll on the far right also does not need to have a second connecting portion. Furthermore, see [link to other documentation]. Figure 1 The number of first and second connection parts of the same waterproof membrane can be one or more. In specific implementation, the number of first and second connection parts should be designed according to actual needs.

[0029] It should be understood that the slot 5 and the plug 8 are connected by a stop, and the groove 6 and the protrusion 9 are connected by a stop, meaning that the position, shape, and size of the slot 5 can match the position, shape, and size of the plug 8, and the position, shape, and size of the groove 6 can match the position, shape, and size of the protrusion 9. Since the position of the slot 5 matches the position of the plug 8, the slot 5 and the plug 8 should be located on the side of two adjacent waterproof membranes closest to each other.

[0030] In practice, the bottom of the groove 6 and / or the top surface of the protrusion 9 are provided with a dense metal mesh 10.

[0031] In this embodiment, before electromagnetic induction welding, the groove 6 of the waterproof membrane can serve as a cavity for the adhesive. The insertion part 8 is inserted into the slot 5, and the protrusion 9 is inserted into the groove 6, connecting the first connecting part of the waterproof membrane to the second connecting part of the adjacent waterproof membrane. At this time, the connection between the first connecting part and the second connecting part is a detachable connection. During the electromagnetic induction welding process, the metal mesh 10 generates current due to the change in magnetic flux, generating heat. The adhesive receives this heat, melts and mixes, and undergoes a chemical reaction, generating a large amount of heat. This raises the temperature at the gap between the groove 6 and the protrusion 9 to the melting point of the metal mesh 10, causing the hot metal mesh 10 to melt into a liquid state. The reactants of the mesh and adhesive are fused together, and the heat is evenly distributed, filling the gap between the bottom of the groove 6 and the top surface of the protrusion 9. After cooling and solidification, the fusion of the liquid metal mesh and the reactants of the adhesive forms an adhesive layer 11, achieving adhesion between the first substrate 4 and the second substrate 7. The liquid metal mesh increases the strength of the adhesive layer 11, which has strong adhesion, high hardness, reliable and stable performance, and completely fills the gaps between adjacent waterproof membranes, blocking the leakage path between adjacent waterproof membranes and providing a strong adhesion effect. In addition, the connection construction process of the waterproof membrane provided in this embodiment does not require workers to hold high-temperature baking devices, which can ensure the safety of workers.

[0032] In some embodiments, the dense metal mesh 10 is made of a tin-lead alloy material.

[0033] In some embodiments, the adhesive includes an adhesive and a curing agent.

[0034] In some embodiments, the curing agent is an aliphatic amine curing agent. Specifically, the curing agent includes ethylenediamine and / or diethylenetriamine.

[0035] In some embodiments, the roll body 1 is integrally formed with the first substrate 4, the second substrate 7, the interlocking portion 8, and the protrusion 9. This facilitates the preparation of the waterproof roll and improves its structural strength.

[0036] The construction method of the waterproof membrane provided in any of the above embodiments includes the following steps: Step 1: Clean and pre-treat the substrate surface; Step 2: Lay multiple waterproof membranes and adhere them to the base surface. Pour the epoxy resin adhesive and curing agent into the groove 6 at a weight ratio of 10:3 and stir to mix. Insert the plug part 8 into the slot 5 and insert the protrusion part 9 into the groove 6, so that the first connecting part of the waterproof membrane is connected to the second connecting part of the adjacent waterproof membrane. Step 3: Use a magnetic field changer to heat the connection between the groove 6 and the protrusion 9, so that the first connection part and the second connection part are bonded together.

[0037] In some embodiments, the pre-processing of the laying base surface in step one includes: detecting defects in the laying base surface, filling or chiseling the detected defects; and rounding the inside and outside corners and pipe root areas of the laying base surface.

[0038] The waterproof membrane construction method provided in this embodiment involves a magnetic field changer that alters the magnetic flux of the densely packed metal mesh 10, generating an electric current and producing heat. This heat reaches the temperature required for the chemical reaction between the epoxy resin adhesive and the curing agent. The epoxy resin adhesive and curing agent melt to form a mixture and undergo a chemical reaction, forming a cross-linked structure. Simultaneously, a large amount of heat is generated, raising the temperature at the gap between the groove 6 and the protrusion 9 to the melting point of the densely packed metal mesh 10. This causes the hot densely packed metal mesh 10 to melt into a liquid state. The liquid metal mesh then fuses with the reactants of the adhesive, filling the groove... The gap between the bottom of the groove 6 and the top surface of the protrusion 9, where the liquid metal mesh 10 and the reactants of the adhesive combine to form an adhesive layer 11 after cooling and solidification, increases the strength of the adhesive layer 11. Heat is evenly distributed, and the adhesive layer 11 fills the gap between the groove 6 and the protrusion 9. This adhesive layer 11 is highly adhesive, has high hardness, and is reliable and stable, bonding the first and second connecting parts together to achieve a seamless connection between adjacent waterproof membranes, blocking leakage paths and improving the waterproofing effect of the membrane. Furthermore, the construction method for the waterproof membrane eliminates the need for workers to hold high-temperature baking devices, ensuring worker safety.

[0039] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A waterproof membrane, characterized in that, The waterproof membrane includes a membrane body, and the membrane body is provided with a first connecting part and / or a second connecting part; The first connecting portion is connected to the second connecting portion of the adjacent waterproof membrane, and the second connecting portion is connected to the first connecting portion of the adjacent waterproof membrane; The first connecting portion includes a first substrate, at least two slots formed on the first substrate, and a groove disposed between two adjacent slots. The second connecting portion includes a second substrate, at least two insertion portions formed on the second substrate, and a protrusion disposed between two adjacent insertion portions. The groove depth direction of the slots and the grooves is parallel to the thickness direction of the roll body. The slots are engaged with the insertion portion stop, and the grooves are engaged with the protrusion stop. An adhesive layer is provided between the bottom of the groove and the top surface of the protrusion. The adhesive layer is a structural layer formed by electromagnetic induction welding of a dense metal mesh and an adhesive. The adhesive includes an adhesive and a curing agent. The densely packed metal mesh is made of tin-lead alloy. Due to the change in magnetic flux, the densely packed metal mesh generates current and heat. The adhesive absorbs this heat, melts and mixes, and undergoes a chemical reaction, generating a large amount of heat. This raises the temperature at the gap between the groove and the protrusion to the melting point of the densely packed metal mesh, causing it to melt into a liquid state. The liquid densely packed metal mesh and the reactants of the adhesive fuse together, and the heat is evenly distributed, filling the gap between the bottom of the groove and the top surface of the protrusion. After cooling and solidification, the fusion of the liquid densely packed metal mesh and the reactants of the adhesive forms an adhesive layer.

2. The waterproof membrane as described in claim 1, characterized in that, The curing agent is an aliphatic amine curing agent.

3. The waterproof membrane as described in claim 2, characterized in that, The curing agent includes ethylenediamine and / or diethylenetriamine.

4. The waterproof membrane as described in claim 1, characterized in that, The roll body is integrally formed with the first substrate, the second substrate, the insertion part, and the protrusion.

5. A method for constructing a waterproof membrane, applied to the waterproof membrane as described in any one of claims 1 to 4, characterized in that, Includes the following steps: Step 1: Clean and pre-treat the substrate surface; Step 2: Lay and adhere multiple waterproof membranes to the base surface, wherein epoxy resin adhesive and curing agent are poured into the groove at a weight ratio of 10:3 and mixed, the plug-in part is inserted into the slot and the protrusion is inserted into the groove, so that the first connecting part of the waterproof membrane is connected to the second connecting part of the adjacent waterproof membrane. Step 3: Use a magnetic field changer to heat the connection between the groove and the protrusion. The magnetic field changer causes a change in the magnetic flux of the dense metal mesh to generate current and heat, reaching the temperature required for the chemical reaction of the epoxy resin adhesive and the curing agent. The epoxy resin adhesive and the curing agent melt to form a mixture and undergo a chemical reaction to form a cross-linked structure. At the same time, a large amount of heat is generated, making the temperature at the gap between the groove and the protrusion reach the melting point of the dense metal mesh, causing the dense metal mesh to melt into a liquid state. The liquid dense metal mesh and the reactants of the adhesive fuse together and fill the gap between the bottom of the groove and the top surface of the protrusion. After the liquid dense metal mesh and the reactants of the adhesive cool and solidify, they together form an adhesive layer, bonding the first connection part and the second connection part together.

6. The construction method of the waterproof membrane as described in claim 5, characterized in that, Step one, the pretreatment of the substrate, includes: Detect defects in the laid substrate, and fill or chisel the detected defects; and The inside and outside corners and pipe root areas of the laying base surface are rounded.

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