An instrument and method for detecting water permeability of reinforced coiled material in polyester fiber fabric

Abstract

An instrument and method for detecting the water permeability of a reinforced coil in a polyester fiber fabric, the instrument comprising a main body box, a suction port being provided on the side of the main body box, the suction port being used to connect a vacuum pump; a circle of sealing strips being provided corresponding to the four thickness edges at the upper opening of the main body box; the sealing strips extending upwards forming a circle of water retaining plates, the water retaining plates and the coil forming a water storage structure; the method comprising covering the pre-treated coil over a transparent box having a length and width of 0.5 meters and a suction port on the side, fixing and sealing the opening edge of the transparent box with a circle of sealing strips having an L-shaped or inverted T-shaped cross section between the pre-treated coil and the sealed material, thereby forming a closed space, the sealing strips having an L-shaped or inverted T-shaped cross section and the pre-treated coil forming a water storage structure, pouring water into the water storage structure to ensure that the pre-treated coil is immersed in water, connecting the suction port on the transparent box with a vacuum pump, and continuously extracting air under negative pressure.

Description

Technical Field

[0001] The invention relates to the field of waterproof building material detection, and in particular to an instrument and method for detecting the water permeability of a reinforced coiled material in a polyester fiber fabric. Background Art

[0002] Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc. It is a flexible building material product that can be rolled into a roll to resist the seepage of external rainwater and groundwater. As a leak-free connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project.

[0003] Today's waterproofing membranes are mostly made of several different material layers through different processes. As waterproofing membranes, the surface and bottom materials are generally made of a whole piece of completely water-proof material, such as PVC, PE and other plastics. Polyester fiber fabric materials such as polyester fiber mesh cloth are also embedded in the waterproofing membrane as reinforcement to improve the dimensional stability of the membrane. This polyester fiber fabric reinforced membrane is mainly used for laying underground planting top plates or planting roofs.

[0004] Under the premise of being obtained by compounding multiple processes, the top and bottom of the waterproof membrane do not involve the problem of water seepage and leakage. Because each layer is compounded by process and due to the properties of the polyester fiber mesh cloth material itself (its warp and weft are staggered and filled in the waterproof membrane), it is possible to cause water seepage on the four sides of the waterproof membrane, which may cause building leakage in serious cases in the later stage.

[0005] Currently, there is no testing instrument or method for testing the water permeability of coiled materials containing polyester fiber fabric reinforcement. Summary of the invention

[0006] The invention provides an instrument and a method for detecting the water permeability of a reinforced coiled material in a polyester fiber fabric, and aims to solve the problem that the water permeability of the reinforced coiled material in a polyester fiber fabric cannot be detected.

[0007] To achieve the above object, the first technical solution adopted by the present invention is: an instrument for detecting the water permeability of a reinforced coil in a polyester fiber fabric, characterized in that: it comprises a main body box, the main body box is a transparent upper opening box;

[0008] A suction port is provided on the side of the main box, and the suction port is used to connect a vacuum pump;

[0009] A circle of sealing strips is correspondingly provided on the four thickness edges of the opening of the main box;

[0010] The sealing strip extends upward to form a circle of water retaining plate;

[0011] During the inspection, the coil is placed at the opening of the main box, the coil and the main box form a closed space, the sealing strip is fixed and sealed, and the water retaining plate and the coil form a water storage structure.

[0012] Among them, the thickness surface at the opening of the main box is provided with one or more first fixing holes, and the sealing strip is correspondingly provided with one or more second fixing holes. The sealing strip, the coil, and the main box are fixed and sealed by screws passing through the first fixing holes and the second fixing holes.

[0013] Wherein, the length of the main box is 0.3-0.8 meters, and the width is 0.3-0.8 meters.

[0014] Wherein, the length and width of the main box are both 0.5 meters.

[0015] The sealing strip is obtained by fixedly connecting four L-shaped profiles.

[0016] The sealing strip is obtained by fixedly connecting four inverted T-shaped profiles.

[0017] The second technical solution adopted by the present invention is: a method for detecting the water permeability of a reinforced coiled material in a polyester fiber fabric, characterized in that:

[0018] The following steps are involved:

[0019] The first step is to simulate the pre-processing operation of the coil to be tested:

[0020] The coil to be tested is cut into three small coils with a width of 0.1-0.3 meters, and the three small coils are laid and welded in sequence in the width direction to obtain a pre-treated coil, wherein the width of the pre-treated coil is greater than 0.5 meters and the length is greater than 0.5 meters;

[0021] The second step is to cover the pre-treated coiled material on the top of a transparent box with a length and width of 0.5 meters and an air extraction port on the side, and use a circle of L-shaped or inverted T-shaped sealing strips to fix and seal the opening edge of the transparent box and the pre-treated coiled material to form a closed space. The L-shaped or inverted T-shaped sealing strips and the pre-treated coiled material form a water storage structure, and water is poured into the water storage structure to ensure that the pre-treated coiled material is immersed in water. A vacuum pump is connected to the air extraction port on the transparent box, and negative pressure is continuously extracted;

[0022] The third step is to check whether there is water in the transparent box. If no water is observed to drip into the transparent box through the pre-treated coiled material, the water permeability of the coiled material to be tested meets the water permeability requirements.

[0023] Among them, in the second step, negative pressure pumping is performed for 48 hours.

[0024] Among them, since the length of the coil is generally fixed, in this technical solution, the length direction can be cut or not cut. However, generally speaking, in order to save costs, the length direction is not cut.

[0025] Among them, welding is a conventional technology in this field and will not be described in detail.

[0026] Among them, the time of negative pressure pumping can be adjusted according to the requirements of the production organization itself. The longer the negative pressure pumping is waterproof, the worse its water permeability is, and the more it can meet daily use.

[0027] The sealing strip and the transparent box can be fixed by drilling holes with screws.

[0028] Beneficial effects of the present invention:

[0029] 1. The instrument for detecting water permeability proposed in the technical solution of the present invention has a simple structure, is easy to prepare and has low cost. The principle is to use negative pressure suction to accelerate the simulation of the water loss and permeability of the coiled material during daily use; wherein, the main box is a transparent structure, which is conducive to directly observing the water permeability effect; and the sealing strip has two functions, one is to strengthen the sealing between the coiled material to be tested and the main box, and the other is that the profile with an L-shaped or inverted T-shaped cross-section will form a circle of water retaining structure upwards, and form a water storage structure with the top of the coiled material to be tested, which provides a storage structure for water.

[0030] 2. The technical solution of the present invention also provides a method for detecting water permeability, in which the internally reinforced waterproof membrane is pre-treated, and three membranes are assembled and welded in sequence in the width direction, so that the membrane in the middle is simulated as a working state. In this mode, the water permeability effect during actual use can be the most intuitive and closest. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Attached Figure 1 This is a three-dimensional exploded view of the instrument for detecting the water permeability of the reinforced coiled material in the polyester fiber fabric of the present invention (L-shaped sealing strip).

[0032] Attached Figure 2 For attachment Figure 1 A partial enlarged view of part A.

[0033] Attached Figure 3 This is a schematic diagram of the water-permeable front of the membrane.

[0034] Attached Figure 4 This is a schematic diagram of the placement of the coil to be tested after processing (non-testing state).

[0035] Attached Figure 5 It is a schematic cross-sectional view of an L-shaped sealing strip (the water retaining plate is on the outside and the water retaining plate is on the inside, and the water retaining plate is on the inside in Example 1).

[0036] Attached Figure 6It is a schematic cross-sectional view of an inverted T-shaped sealing strip.

[0037] In the above figures: 1. theme box; 11. air outlet; 12. sealing strip; 121. water retaining plate; 122. second fixing hole; 13. first fixing hole; 2. screw; 3. polyester fiber mesh cloth. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0039] Example 1: An instrument for detecting the water permeability of a reinforced roll in a polyester fiber fabric

[0040] An instrument for detecting the water permeability of a reinforced coiled material in a polyester fiber fabric, characterized in that:

[0041] A main body box 1, wherein the main body box 1 is a transparent box with an upper opening;

[0042] The side of the main box 1 is provided with an air suction port 11, and the air suction port 11 is used to connect a vacuum pump;

[0043] The four thickness edges of the opening of the main box 1 are correspondingly provided with a circle of sealing strips 12;

[0044] The sealing strip 12 extends upward to form a circle of water retaining plate 121;

[0045] During the inspection, the coil is placed at the opening of the main box 1, the coil and the main box 1 form a closed space, the sealing strip 12 is fixed and sealed, and the water baffle 121 and the coil form a water storage structure.

[0046] The thickness surface at the opening of the main box 1 is provided with one or more first fixing holes 13, and the sealing strip 12 is correspondingly provided with one or more second fixing holes 122. The sealing strip 12, the coil, and the main box 1 are fixed and sealed by screws 2 passing through the first fixing holes 13 and the second fixing holes 122.

[0047] The main box 1 has a length of 0.3-0.8 meters and a width of 0.3-0.8 meters.

[0048] The length and width of the main box 1 are both 0.5 meters.

[0049] The sealing strip 12 is obtained by fixedly connecting four L-shaped profiles.

[0050] The sealing strip 12 is obtained by fixedly connecting four inverted T-shaped cross-sections.

[0051] Embodiment 2: A method for detecting water permeability of a reinforced coiled material in a polyester fiber fabric, characterized in that:

[0052] The following steps are involved:

[0053] The first step is to simulate the pre-processing operation of the coil to be tested:

[0054] The coil to be tested is cut into three small coils with a width of 0.1-0.3 meters, and the three small coils are sequentially laid and welded in the width direction to obtain a pre-treated coil, wherein the width of the pre-treated coil is greater than 0.5 meters and the length is greater than 0.5 meters;

[0055] The second step is to cover the pre-treated coiled material on the top of a transparent box with a length and width of 0.5 meters and an air extraction port on the side, and use a circle of L-shaped or inverted T-shaped sealing strips to fix and seal the opening edge of the transparent box and the pre-treated coiled material to form a closed space. The L-shaped or inverted T-shaped sealing strips and the pre-treated coiled material form a water storage structure, and water is poured into the water storage structure to ensure that the pre-treated coiled material is immersed in water. A vacuum pump is connected to the air extraction port on the transparent box, and negative pressure is continuously extracted;

[0056] The third step is to check whether there is water in the transparent box. If no water is observed to drip into the transparent box through the pre-treated coiled material, the water permeability of the coiled material to be tested meets the water permeability requirements.

[0057] In the second step, negative pressure pumping is performed for 48 hours.

[0058] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting the water permeability of a reinforced waterproof roll in a polyester fiber fabric, characterized in that: The following steps are involved: The first step is to simulate the pre-treatment operation of the waterproof membrane to be tested: The surface and bottom of the waterproof roll material use a whole piece of completely water-proof material, and the polyester fiber fabric is embedded in the waterproof roll material; the waterproof roll material to be tested is cut into 3 small rolls with a width of 0.1-0.3 meters, and the 3 small rolls are sequentially laid and welded in the width direction to obtain a pre-treated roll material, and the width of the pre-treated roll material is greater than 0.5 meters and the length is greater than 0.5 meters; The second step is to cover the pre-treated coiled material on the top of a transparent box with a length and width of 0.5 meters and an air extraction port on the side. In the width direction, the small strip of coiled material in the middle is located in the transparent box. A circle of L-shaped or inverted T-shaped sealing strips are used to fix and seal the opening edge of the transparent box and the pre-treated coiled material to form a closed space. The L-shaped or inverted T-shaped sealing strips and the pre-treated coiled material form a water storage structure. Water is poured into the water storage structure to ensure that the pre-treated coiled material is immersed in water. A vacuum pump is connected to the air extraction port on the transparent box to continuously extract air under negative pressure for 48 hours. The third step is to check whether there is water in the transparent box. If no water is observed to drip into the transparent box through the pre-treated membrane, the water permeability of the waterproof membrane to be tested meets the water permeability requirements.

Images