A waterproof felt

Abstract

A water-based coagulating material and waterproof felt are disclosed. The felt body comprises a surface layer, a middle layer, and a bottom layer. The surface layer is fixed to the upper side of the middle layer, and the middle layer is fixed to the upper side of the bottom layer. The middle layer has a uniformly distributed filling material within its inner cavity. Insert pockets are uniformly distributed on the upper side of the felt body, each pocket having an opening at one end. The felt body is equipped with a certain number of pull tabs, each pull tab located within one of the insert pockets. This waterproof felt utilizes the pull tabs to create a mutual tension with the concrete, forming a tight, integrated bond between the two, thus solving the practical problem of concrete separation and improving waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of waterproof materials, and more particularly to a waterproof felt. Background Technology

[0002] Waterproof felt, also known as waterproof blanket, is mainly used for seepage prevention or sealing in civil engineering, water conservancy projects, and environmental protection projects, such as the seepage prevention design of channels, reservoirs, and dams. Waterproof felt has advantages such as clay-bonded properties, good sealing performance, convenient laying, solidification upon contact with water, and low construction cost.

[0003] Waterproof felt typically consists of a three-layer structure. The top and bottom layers are usually made of flexible, rollable polyester-propylene blend canvas, while the middle layer is made of polyethylene film. The middle layer is filled with a certain amount of cement mortar. This cement mortar absorbs moisture and causes the entire waterproof felt to solidify quickly, ultimately forming a unified waterproof layer. While this type of waterproof felt has many advantages, its main drawback is that it cannot fully integrate with the concrete above it. The fundamental reason is that there is no substantial mutual tension between the waterproof felt and the concrete, leading to problems such as delamination and separation between the solidified concrete and the surface of the waterproof felt.

[0004] Therefore, there is a need to provide a waterproof felt that can firmly bond with concrete. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a waterproof felt that interacts with the solidified concrete through a Z-shaped tie rod, so that the two can form a tight bond, thus solving the practical problem of concrete separation and improving waterproof performance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: It includes a felt body, which is composed of a surface layer, a middle layer, and a bottom layer. The surface layer and the bottom layer are both made of polyester-propylene blended canvas. The middle layer is a plate-type bag structure, and its material is a high-molecular waterproof polyethylene film. The surface layer is fixed to the upper side of the middle layer, and the middle layer is fixed to the upper side of the bottom layer. The inner cavity of the middle layer is uniformly filled with a filling material. The upper side of the felt body is uniformly provided with inserts, each insert having an opening at one end. The felt body is equipped with a certain number of pull tabs, each pull tab being movably disposed within an insert.

[0007] The beneficial effects of this utility model are that by setting a certain number of inserts on the surface of the felt body, the pull member will not change its posture when the concrete is poured, thus playing an effective role in regulating and limiting its position; by the mutual pulling action between the Z-shaped pull member and the solidified concrete, the two can form a tight, integrated bond, which solves the practical problem of concrete separation and delamination, improves waterproof and shockproof performance, and extends the service life of waterproof projects. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of the waterproof felt of this utility model.

[0009] Figure 2 This is a schematic diagram of the insertion bag installation of the waterproof felt of this utility model.

[0010] Figure 3 This is a schematic diagram illustrating the installation principle of the pull-out component of the waterproof felt of this utility model.

[0011] Figure 4 This is a schematic plan view of the overall waterproof felt of this utility model.

[0012] Figure 5 This is a schematic diagram illustrating the overall operating principle of the waterproof felt of this utility model.

[0013] Among them: 1. Surface layer; 2. Middle layer; 3. Bottom layer; 4. Filler; 5. Insert; 6. Opening; 7. Pulling element; 8. Drainage channel; 9. Ground base; 10. Concrete; Detailed Implementation

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] It should be noted that the terms "upper side", "lower side", "one end", "surface", "upper part", "lower part", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "have," "set / have," "fixed," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0017] Please refer to Figure 1 The felt body is composed of a surface layer 1, a middle layer 2, and a bottom layer 3. The surface layer 1 and the bottom layer 3 are both made of polyester-propylene blended canvas. The middle layer 2 is a plate-type bag structure, also known as an expansion bag. The middle layer 2 is made of high-molecular waterproof polyethylene film. Water inlet holes are evenly provided on the upper side of the middle layer 2. The surface layer 1 is fixed to the upper side of the middle layer 2 with special engineering adhesive, and the middle layer 2 is fixed to the upper side of the bottom layer 3 with special engineering adhesive.

[0018] The inner cavity of the middle part 2 is provided with a certain number of fillers 4, which are dry cement ash. After the fillers 4 absorb moisture, the entire felt body will solidify quickly and form an integrated waterproof structure.

[0019] The middle part 2 is formed by flattening and then placing it between the surface part 1 and the bottom part 3. The filler 4 in the middle part 2 is compacted and flattened as required, which is beneficial for the cylindrical winding and sealing of the felt body.

[0020] In reality, waterproof felt can be made into various specifications (models) according to the regional environment. For example, waterproof felt used for reservoirs and fish ponds must be designed and manufactured to the maximum size, while waterproof felt used for canals, aqueducts, oxidation ponds and indoors must be manufactured in smaller sizes.

[0021] Therefore, waterproof felt of the appropriate specifications should be selected for different regional environments (site size). Large-size waterproof felt has a large coverage area and is suitable for waterproofing reservoirs, fish ponds and open ground, without the problem of cutting excess parts. Small-size waterproof felt has a small coverage area and is mostly used for waterproofing canals, aqueducts and indoor and outdoor buffer pools, but there is the problem of cutting excess parts, which will result in some waste.

[0022] Please refer to Figure 2 A certain number of rectangular inserts 5 are evenly arranged on the upper side of the surface layer 1 as required. The inserts 5 can play a role in regulating and stabilizing the pull piece 7.

[0023] The orientation of the insert 5 is not restricted; it can be arranged vertically or horizontally. The insert 5 is limited to being tightly inserted at one end of the pull tab 7. Each insert 5 has an opening 6 at one end through which the pull tab 7 passes. The direction of the opening 6 is not restricted; it can be opened to the left or to the right.

[0024] Please refer to Figure 3 Each of the pockets 5 is equipped with a matching Z-shaped pull tab 7, one end of each pull tab 7 is movably inserted into a pocket 5, and the other end of each pull tab 7 is in a suspended state.

[0025] During waterproofing construction, one end of the pull member 7 is fastened to the insert 5, and the other end of the pull member 7 is tightly embedded in the solidified concrete 10. The pull member 7 can effectively promote the tight bonding between the felt and the concrete 10.

[0026] There is no form of fixation or connection between the pull piece 7 and the insert 5. It is inserted when waterproofing is required and stored independently in the packaging box when not in use, without affecting the winding and sealing of the felt body.

[0027] The balancing function and principle of the tie member 7: When the concrete 10 on the upper side of the felt body is poured and formed, one end of each tie member 7 will be embedded, and the felt body and the concrete 10 will quickly form an integrated waterproof working mode; the reverse mutual pulling of the tie members 7 can also promote the stability between the felt body and the concrete 10, which can effectively improve the sealing and seismic performance of the waterproof project.

[0028] Please refer to Figure 4 The waterproof felt is usually rolled up in a cylindrical shape in a sealed bag. During construction, it can be unfolded to the required length. The remaining part can still be rolled up and stored after use. The pull piece 7 is stored separately in the packaging box. During construction, it can be moved and placed in the insert bag 5 on the upper side of the felt body without affecting the rolling of the felt body.

[0029] Each model of waterproof felt has a set standard length. Large-size waterproof felt is usually 25M-30M in length, medium-size waterproof felt is generally 15M-20M in length, and small-size waterproof felt should be less than 10M in length. Different models of waterproof felt can meet the waterproofing needs of different regional environments.

[0030] Waterproof felt packaging process: 1. After the waterproof felt is formed, it is fed into the bundling machine by the conveying equipment; 2. The bundling machine bundles the waterproof felt; 3. The cylindrical waterproof felt is sealed in plastic bags.

[0031] Please refer to Figure 5 Waterproof felt is a new type of waterproof material product, mainly used for seepage prevention or sealing in civil engineering, water conservancy engineering, and environmental protection engineering, such as seepage prevention design of water channels, reservoirs, dams and water diversion channels.

[0032] Since the waterproofing construction of reservoirs, ponds, dams and canals 8 is the same, this embodiment only describes the waterproofing construction of a canal 8 as an example, and understands the importance and actual effect of this waterproof felt through construction.

[0033] Operating procedures and principles: 1. Level the inner wall and bottom of the water channel 8 as required; 2. Unfold the cylindrical waterproof felt and measure its dimensions; 3. Cut several sections of felt of the same length and lay them in the water channel 8 in sequence; 4. Install the pull piece 7 in each insert 5 in sequence and then pour a small amount of water evenly on it; 5. Pour a layer of concrete 10 on the surface of the waterproof felt as required; 6. The slurry filtered from the concrete 10 seeps downwards or inwards; 7. The solidified concrete 10 is tightly bonded to the waterproof felt.

[0034] When the concrete 10 is poured, one end of the pull member 7 will be embedded in the concrete 10. After the concrete 10 is completely solidified, the pull member 7 will play a reverse mutual pulling role.

[0035] Based on construction needs and waterproofing quality considerations, the waterproof felt should extend to the upper part of the corresponding ground base 9 at both ends, so that the entire waterproofing project forms a U-shaped structure.

[0036] Since the water channel 8 maintains a certain level of humidity, it is not advisable to spray too much water on the waterproof felt.

[0037] In reality, before pouring concrete 10 on both sides of the inner wall of the water channel 8, two inner molds (baffles) should be set up. The inner molds can effectively regulate the thickness and verticality of the side walls.

[0038] In actual operation, the slurry filtered out by the concrete 10 will seep downwards or inwards, allowing the concrete 10 and the felt to quickly form a seamless connection, thus improving the sealing performance.

[0039] Waterproofing projects constructed with this waterproof felt have the following characteristics: firstly, excellent water-proof performance; secondly, high hydrostatic pressure resistance; thirdly, no aging reaction and good durability; and fourthly, no negative impact on the surrounding environment.

[0040] This utility model of waterproof felt uses a Z-shaped tie rod to create a mutual tension with the solidified concrete, forming a tight, integrated bond between the two. This solves the practical problem of concrete separation and delamination, improves waterproof and shock-resistant performance, and extends the service life of waterproof projects.

Claims

1. A waterproof felt, comprising a felt body, characterized in that: The felt body is composed of a surface layer, a middle layer and a bottom layer. The surface layer is fixed to the upper side of the middle layer, and the middle layer is fixed to the upper side of the bottom layer. The inner cavity of the middle layer is uniformly filled with filling material. A certain number of inserts are uniformly arranged on the upper side of the felt body, and each insert has an opening at one end. The felt body is equipped with a certain number of pull tabs, and each pull tab is movably disposed in an insert.

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