Water channeling resistance test method for waterproof material based on water pressure and interference external force elimination

Abstract

The invention discloses a water channeling resistance test method for a waterproof material based on water pressure and interference external force elimination. The method comprises the following steps: 1) forming a test piece; and 2) test and result determination. On one hand, on the basis of splicing and coating of the test pieces, on the premise that the waterproof material layer is not damaged, the water channeling resistance of the waterproof material layer is obtained through the pressure difference change in the pressure channel through constant pressure or pressurization of water pressure; and on the other hand, the adopted binding piece eliminates the power interference of the gap section on the covering section and also counteracts the acting force channeling to the gap section, so that the covering section completes the test in the channeling power without interference, and the water channeling resistance of the waterproof material layer is obtained through the pressure difference change in the fluid channel without manual observation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waterproof material performance detection, and particularly relates to a waterproof material water channeling resistance test method based on water pressure and elimination of interference external force. BACKGROUND

[0002] At present, the water channeling resistance performance method of the waterproof coiled material comprises the following steps:

[0003] (1) Preparing a test piece, first, a through hole is preset on the waterproof coiled material, then a standard-shaped test piece is formed on the waterproof coiled material by pouring, and the test piece is demolded and maintained under standard conditions; or first, a standard-shaped test piece is formed on the waterproof coiled material by pouring, the test piece is demolded and maintained under standard conditions, and then a through hole is punched on the waterproof coiled material;

[0004] (2) The maintained test piece is placed on a permeability tester, and the test piece is subjected to permeability detection under the conditions of a specified pressure and time, the waterproof coiled material surface is water-facing, and the pressure is maintained for a period of time, the waterproof coiled material and the mortar block bonding edge are observed at any time to see whether water seeps out, and once water seeps out, it is determined that the water channeling resistance performance of the waterproof coiled material is unqualified.

[0005] Although the required water channeling resistance performance can be obtained from the detection principle, the following limitations exist:

[0006] 1) In the detection mode, the waterproof coiled material must be punched, and the detected result is more suitable for the conditions of bottom isolation waterproofing and surface pouring of the waterproof coiled material, and the detection mode is obviously not applicable once the waterproof coiled material is used in other working conditions, for example, the waterproof coiled material surface is undamaged or the waterproof coiled material is used as a joint outer layer, especially in a complex temperature change environment, and therefore, the water channeling resistance performance detection under complex working conditions cannot be met.

[0007] 2) The detection mode not only has high requirements for the molding and assembly sealing of the test piece, but also can only detect the combination performance of the waterproof coiled material and the test piece, but in actual operation, the waterproof coiled material is subjected to water-facing pressure, and the water-facing pressure further hinders water channeling, so that the detection result has a certain failure rate. SUMMARY

[0008] The application aims to overcome the deficiencies in the prior art and provide a waterproof material water channeling resistance test method based on water pressure and elimination of interference external force.

[0009] To achieve the above objective, the technical scheme adopted by the application is as follows:

[0010] A waterproof material water channeling resistance test method based on water pressure and elimination of interference external force, which adopts a test equipment comprising a test piece and a water pressure assembly, and the method comprises the following steps:

[0011] 1) Test piece forming

[0012] Firstly, two cylindrical concrete or mortar test samples are selected, and are spliced together in alignment from top to bottom to form a butt joint; then, a waterproof material is wrapped around the two concrete test sample butt joint ends to form a waterproof material layer; then, the waterproof material layer is bound to the test samples using a binding member, with the waterproof material layer being sealed from the spliced end, and the waterproof material layer being divided into a gap segment that seals the circumference of the butt joint, and a covering segment that wraps around the two test sample butt joint ends from both sides of the gap segment, the binding member covering the entire gap segment and part of the covering segment, the length of each covering segment being less than the length of the wrapped test sample, the two test samples, the waterproof material layer, and the binding member forming a test piece, and a test hole is formed in one test sample that penetrates the test sample and is in communication with the butt joint, the test hole, the butt joint, and the gap segment forming a fluid passage;

[0013] 2) Test and result determination

[0014] The test piece is erected with the test hole facing upwards, and a water pressure assembly that forms water pressure is connected to the test hole through a sealing joint, at this time the water pressure assembly is located above the side of the test piece, and the water pressure liquid enters the fluid passage to form a test pressure, wherein the test pressure includes a first displacement force that channels to the gap segment, a second displacement force that channels to the covering segment and the test sample, and a binding force formed by the binding member, which offsets the first displacement force and keeps the gap segment adhered to the test sample to eliminate the dynamic interference of the gap segment on the covering segment, that is, the anti-channeling water test is carried out under the second displacement force, and the anti-channeling water property of the waterproof material layer is obtained through the pressure difference change inside the fluid passage.

[0015] Preferably, in step 1), the joint part formed by the binding member and the end joint part of the waterproof material layer are relatively misaligned. Avoiding the relative interference of the joint parts, that is, avoiding the non-radial tightening force generated by the joint parts, resulting in uniform stress of the waterproof material layer, thereby affecting the accuracy of the test results.

[0016] According to one specific implementation and preferred aspect of the present application, the two joint parts are relatively misaligned by 180°. Based on the 180° misalignment distribution, the radial binding force formed by the entire binding area is the same, and is not affected by the joint parts, thereby improving the accuracy of the test.

[0017] Preferably, the binding member is a hoop or a bandage.

[0018] According to another specific implementation and preferred aspect of the present application, the width of the waterproof material layer is greater than or equal to the length of the test sample; and / or, the length of the waterproof material layer is equal to the circumference of a circle formed by the projection of the test sample in the upward direction. Under the limitation of width and length, the required test piece structure can be formed.

[0019] Preferably, the width of each overlap section is at least 3 / 5 of the length of the sample. The detection failure rate caused by size inconsistency is reduced.

[0020] Further, the widths of the upper and lower overlap sections are equal. The detection working condition is relatively close, and the water channeling resistance performance of the waterproof material layer can be more accurately obtained.

[0021] According to still another specific implementation and preferred aspect of the present application, the test hole is located in the middle of the sample. Based on the middle layout, the waterproof material layer is more uniformly impacted by water channeling, and thus the water channeling resistance performance of the roll material can be more accurately obtained.

[0022] In addition, the water pressure assembly includes a pipeline, a pressure gauge, a pressure regulating valve, and a liquid level column; or the water pressure assembly includes a pipeline, a pressure gauge, a pressure regulating valve, and a water pump. The pressure mode using the liquid level column can perform test detection under constant pressure working condition; if the water pump is used, test detection under continuous pressure working condition can be performed.

[0023] Preferably, the waterproof material layer is a hot melt polymer roll material or a hot melt construction roll material; or the waterproof material layer includes a waterproof coating on the inner side and a waterproof roll material wrapped around the waterproof coating. In short, the present test method is suitable for different roll materials or coatings, and can also be combined with specific use working conditions to perform high-precision performance detection, and is highly practical.

[0024] Thanks to the implementation of the above technical solutions, the present application has the following advantages compared with the prior art:

[0025] In the water channeling resistance performance test of the existing waterproofing membrane, the opening (or damage) of the waterproofing membrane must be caused, and the test result is more suitable for the bottom isolation waterproofing and surface pouring of the waterproofing membrane. Once the waterproofing membrane is used in other working conditions, for example, the surface of the waterproofing membrane is not damaged or the waterproofing membrane is used as the outer layer of the joint, especially in a complex temperature change environment, the detection method is obviously not applicable, therefore, the water channeling resistance performance test under complex working conditions cannot be met. In addition, the existing method not only has high requirements for the molding, assembly and sealing of the test piece, but also can only detect the combination performance of the waterproofing membrane and the test piece, therefore, the molding of the test piece and the pressure difference waterproofing performance of the waterproofing membrane itself will affect the failure rate of the test result and other defects. The present application ingeniously solves various existing defects by overall design of the waterproofing material water channeling resistance test method. After adopting the waterproofing material water channeling resistance test method, firstly, two cylindrical concrete or mortar test samples are selected, and the two test samples are vertically spliced and an abutment joint is formed; then, the waterproofing material is wrapped around the abutment joint to form a waterproofing material layer; then, the waterproofing material layer is bound to the test sample by a binding member, wherein the waterproofing material layer is sealed from the spliced end, and the waterproofing material layer is divided into a gap segment around the abutment joint, and a covering segment wrapped around the abutment end of the two test samples on both sides of the gap segment, the binding member covers the entire gap segment and part of the covering segment, the length of each covering segment is less than the length of the wrapped test sample, the two test samples, the waterproofing material layer and the binding member form a test piece, and a test hole is formed in one test sample, the test hole, the abutment joint and the gap segment form a fluid channel; then, the test piece is vertically erected from the test hole, and a water pressure assembly forming water pressure is connected to the test hole through a sealing joint, at this time, the water pressure assembly is located above the side of the test piece, the liquid of the water pressure enters the fluid channel to form a test pressure, wherein the test pressure includes a first channeling force channeling to the gap segment and a second channeling force channeling to the covering segment and the test sample, and the binding force formed by the binding member can offset the first channeling force and keep the gap segment adhered to the test sample to eliminate the dynamic interference of the gap segment on the covering segment, that is, the water channeling resistance test is carried out under the second channeling force, and the water channeling resistance of the waterproofing material layer is obtained by the pressure difference change in the fluid channel; therefore, on the one hand, based on the splicing and wrapping of the test piece, the water channeling resistance performance of the waterproofing material layer is obtained by the pressure difference change in the pressure channel under the constant pressure or pressure of the water pressure without damaging the waterproofing material layer; on the other hand, the binding member can eliminate the dynamic interference of the gap segment on the covering segment, and also offset the force channeling to the gap segment, so that the covering segment completes the test in the interference-free water channeling force, and the water channeling resistance of the waterproofing material layer is obtained by the pressure difference change in the fluid channel without manual observation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of the test equipment structure of Example 1.

[0027] Figure 2 for Figure 1 schematic view of the main view of the pilot piece;

[0028] Figure 3 for Figure 2 schematic view of the main view of the pilot piece;

[0029] Figure 4 for

[0030] Figure 5 for Figure 4 schematic view of the main view of the pilot piece;

[0031] Figure 6 for Figure 5 schematic view of the main view of the pilot piece;

[0032] 1, test piece; 10, cylindrical concrete sample; 10a, butt joint; 10b, test hole; 11, waterproof material layer; 11a, plugging section; 11b, covering section; 110, waterproof coating; 111, coiled material layer; 12, binding piece;

[0033] 2, power piece; 20, pipeline; 21, pressure gauge; 22, pressure regulating valve; 23, liquid level column; 24, water pump. DETAILED DESCRIPTION

[0034] In order to make the above objectives, characteristics and advantages of the present application more apparent, easy to understand, the present application will be described in detail below with the help of the accompanying drawings and specific embodiments. In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or an ordering between or among the indicated technical features. Thus, a feature defined with "first", "second", etc. can include at least one of the feature, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly specified. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0040] Example 1

[0041] As Figures 1 to 3 shown, the water channeling resistance test method of the waterproof material based on water pressure and eliminating interference external force of the present embodiment adopts test equipment including test piece 1, water pressure assembly 2.

[0042] The test piece 1 comprises two cylindrical concrete test samples 10 which are butted together to form a butt joint 10a, a waterproof material layer 11 which is wrapped around the two concrete test sample butt ends based on the butt joint 10a, and a binding member 12 which is wrapped around the waterproof material layer 11 in the circumferential direction based on the reference.

[0043] In some embodiments, the cylindrical concrete test samples 10 are cylinders of the same size and specifications, and a test hole 10b is formed through the middle of one of the cylindrical concrete test samples 10. In short, the concrete block (or mortar block) is cast in the form of a cylinder with a diameter of 300 mm and a height of 250 mm, and one of the blocks is pre-drilled with a through hole of a diameter of 20 mm. The test blocks can be formed separately or can be formed first as a cylindrical concrete block with a diameter of 300 mm and a height of 500 mm, and then cut and drilled. The waterproof material layer 11 is a commonly used hot melt construction coiled material (or hot melt polymer coiled material), and is conventionally overlaid and installed, with the ends being sealed and overlapped. Specifically, the waterproof material layer 11 is based on the butt joint 10a, and the waterproof material layer 11 comprises a blocking section 11a which blocks the circumference of the butt joint 10a, and an overlapped section 11b which is attached to the butt ends of the two test samples, respectively. In this example, the widths of the two overlapped sections 11b are equal, so as to avoid invalidation of the test results due to different lengths. At the same time, the width of the waterproof material layer 11 is 300 mm, and the length of the waterproof material layer 11 is equal to the circumference of the circle formed by the projection of the test samples in the upward and downward directions. Under the limitations of the width and the length, the required test piece structure can be formed. Generally, the gap section 11a is about 1-2 mm, and the remaining part is equally divided to form the overlapped sections 11b (the widths of the two overlapped sections are equal), i.e., the width of each overlapped section 11b is about 148 mm. This avoids invalidation of the test results due to different lengths. The binding member 12 wraps the waterproof material layer 11 by applying a radial relative tightening force. Specifically, the binding member 12 is a strap or a hoop, and the butt ends of the binding member 12 are relatively staggered with the butt ends of the waterproof material layer 11. The two joint parts are relatively staggered by 180°. Based on the 180° staggered distribution, the radial binding force of the entire binding area is the same, and is not affected by the joint parts, thereby improving the accuracy of the test. That is, whether it is a strap or a hoop, the two joint parts are relatively staggered to avoid non-radial tightening caused by the coincidence of the joint parts, which affects the uniformity of the stress and in turn affects the accuracy of the test results.

[0044] The water pressure assembly 2 comprises a pipeline 20, a pressure gauge 21, a pressure regulating valve 22, and a liquid level column 23. The pressure mode using the liquid level column 23 can be used to perform test detection under constant pressure conditions. In short, the Calsiton tube (liquid level column 23) is connected to the test hole 10b of the test piece 1 through a valve, and the water pressure is adjusted by the water level difference, so as to simulate different hydrostatic pressure conditions and accurately detect the water channeling resistance of the waterproof material under long-term static pressure.

[0045] In summary, the implementation process of the embodiment is as follows:

[0046] 1) Test piece forming

[0047] First, two cylindrical concrete or mortar test samples are selected, and the two test samples are vertically spliced together from top to bottom to form a butt joint. Then, a waterproof material is wrapped around the butt joint to form a waterproof material layer. Then, the waterproof material layer is wrapped around the butt joint using a binding member. The waterproof material layer is sealed from the spliced end, and the waterproof material layer is divided into a gap segment that seals the circumference of the butt joint, and a covering segment that covers the butt joint end of each test sample from both sides. The binding member covers the entire gap segment and part of the covering segment. The length of each covering segment is less than the length of the test sample it covers. The two test samples, the waterproof material layer, and the binding member form a test piece. A test hole is formed in one of the test samples, which penetrates the test sample and communicates with the butt joint. The test hole, the butt joint, and the gap segment form a fluid channel.

[0048] 2) Test and result determination

[0049] The test piece is vertically erected with the test hole facing upwards. A cast tube is connected to the test hole of the test piece through a valve. A liquid is introduced into the fluid channel to form a test pressure. The test pressure includes a first displacement force that moves towards the gap segment, a second displacement force that moves towards the covering segment and the test sample, and a binding force formed by the binding member. The binding force offsets the first displacement force and keeps the gap segment in close contact with the test sample to eliminate the dynamic interference of the gap segment on the covering segment. In other words, the water channeling resistance test is conducted under the second displacement force, and the water channeling resistance of the waterproof material layer is obtained by measuring the pressure difference inside the fluid channel.

[0050] Embodiment 2

[0051] As shown in Figures 4 to 6 , the water pressure-based waterproof material water channeling resistance test method of the embodiment uses a test device that includes a test piece 1 and a water pressure assembly 2.

[0052] The test piece 1 includes two cylindrical concrete test samples 10 that are vertically spliced together to form a butt joint 10a, a waterproof material layer 11 that is wrapped around the butt joint 10a, and a binding member 12 that is wrapped around the circumference of the waterproof material layer 11 based on the butt joint 10a.

[0053] In some embodiments, the cylindrical concrete sample 10 is a cylinder with the same size and specifications, and a test hole 10b is formed in the middle of one cylindrical concrete sample 10. In short, the cylindrical concrete block (or mortar block) has a size of 300 mm in diameter and 250 mm in height, and one of the blocks needs to be pre-drilled with a 20 mm diameter through hole. As for the molding of the test block, it can be molded separately or a cylindrical concrete block with a diameter of 300 mm and a height of 500 mm can be formed first, and then cut and drilled. The waterproof material layer 11 includes an inner layer and an outer layer. The inner layer is a waterproof coating layer 110, and the outer layer is a coiled material layer 111 wrapped around the outer periphery of the waterproof coating layer 110. The construction adopts conventional brushing and covering paving, and the end part is sealed and overlapped. Specifically, the waterproof material layer 11 is based on the butt joint 10a, and the waterproof material layer 11 is divided into a sealing segment 11a sealing the circumference of the butt joint 10a and a covering segment 11b respectively fitted on the two sample butt end parts. In this example, the widths of the upper and lower covering segments 11b are equal. Avoiding the invalidation of test results caused by different lengths. At the same time, the width of the waterproof material layer 11 is 300 mm, and the length of the waterproof material layer 11 is equal to the circumference of the circle formed by the projection of the sample in the upward direction. Under the limitation of width and length, the required test piece structure can be formed. Generally, the gap segment 11a is about 1-2 mm, and the remaining average is formed into the covering segment 11b (the width of the upper and lower covering segments is equal), that is, the width of each covering segment 11b is about 148 mm. Avoiding the invalidation of test results caused by different lengths. The binding member 12 wraps the waterproof material layer 11 by a radial relative tightening force. Specifically, the binding member 12 is a strap or a hoop, and the butt end parts of the binding member 12 are relatively staggered with the butt end parts of the waterproof material layer 11. The two joint parts are relatively staggered by 180°. Based on the 180° staggered distribution, the radial binding force of the entire binding area is the same, and is not affected by the joint part, thereby improving the accuracy of the test. That is, whether it is a strap or a hoop, the two joint parts are relatively staggered to avoid non-radial tightening caused by joint overlap, which affects the uniform stress and in turn affects the accuracy of the test results.

[0054] The water pressure assembly 2 includes a pipeline 20, a pressure gauge 21, a pressure regulating valve 22, and a water pump 24. The water pump 24 is used for test detection under continuous pressure condition, so as to quickly obtain the limit anti-water channeling capacity of the waterproof material layer 11.

[0055] In summary, the implementation process of the present embodiment is as follows:

[0056] 1) Test piece molding

[0057] First, two columnar concrete or mortar samples are selected, spliced and aligned from top to bottom at the end portions to form a butt joint; then, a waterproof material is coated on the butt joint to form a waterproof material layer; then, the waterproof material layer is bound to the samples by a binding member, wherein the waterproof material layer is sealed from the spliced end portions, and the waterproof material layer is divided into a gap segment around the butt joint and a covering segment coated on the two sample butt joint end portions from the upper and lower sides of the gap segment, the binding member covers the entire gap segment and part of the covering segment, the length of each covering segment is less than the length of the coated sample, the two samples, the waterproof material layer and the binding member form a test piece, and a test hole is formed on one sample, which penetrates the sample and communicates with the butt joint, the test hole, the butt joint and the gap segment form a fluid channel.

[0058] 2) Test and result determination

[0059] The test piece is vertically erected from the test hole, and the test hole is sealed and communicated with the test hole through a pipeline. The water pump pumps liquid into the fluid channel and forms a test pressure (pumping pressure), wherein the test pressure includes a first driving force that drives to the gap segment and a second driving force that drives to the covering segment and the sample. At the same time, the binding force formed by the binding member offsets the first driving force and keeps the gap segment adhered to the sample to eliminate the dynamic interference of the gap segment on the covering segment, that is, the anti-water channeling test is carried out under the second driving force, and the anti-water channeling property of the waterproof material layer is obtained by the pressure difference change inside the fluid channel.

[0060] In summary, after adopting the waterproof material anti-water channeling test method, first, two cylindrical concrete or mortar samples are selected, and are spliced and jointed in alignment from top to bottom at the end part to form a butt joint; then, the waterproof material is wrapped around the two concrete sample butt end parts with the butt joint as the reference to form a waterproof material layer; then, the waterproof material layer is bound to the sample with the butt joint as the reference, wherein the waterproof material layer is sealed from the spliced end part, and the waterproof material layer is divided into a gap segment around the butt joint, and a covering segment wrapped around the two sample butt end parts from the gap segment top and bottom, the binding piece covers the entire gap segment and part of the covering segment, the length of each covering segment is less than the length of the wrapped sample, the two samples, the waterproof material layer and the binding piece form a test piece, and a test hole is formed on one sample, which penetrates the sample itself and communicates with the butt joint, the test hole, the butt joint and the gap segment form a fluid channel; then the test piece is erected upwards from the test hole, and a water pressure assembly forming water pressure is connected to the test hole through a sealing joint, at this time the water pressure assembly is located above the side of the test piece, the liquid of the water pressure enters the fluid channel to form a test pressure, wherein the test pressure includes a first channeling force channeling to the gap segment and a second channeling force channeling to the covering segment and the sample, at the same time, the binding force formed by the binding piece offsets the first channeling force and keeps the gap segment adhered to the sample to eliminate the dynamic interference of the gap segment on the covering segment, that is, the anti-water channeling test is carried out under the second channeling force, and the anti-water channeling performance of the waterproof material layer is obtained through the pressure difference change in the fluid channel; therefore, on the one hand, based on the splicing and wrapping of the test piece, the anti-water channeling performance of the waterproof material layer is obtained through the pressure difference change in the pressure channel under the constant pressure or pressure of the water pressure without damaging the waterproof material layer; on the other hand, the binding piece eliminates the dynamic interference of the gap segment on the covering segment, and also offsets the force channeling to the gap segment, so that the covering segment completes the test in the interference-free water channeling force, and the anti-water channeling performance of the waterproof material layer is obtained through the pressure difference change in the fluid channel without manual observation; on the third aspect, the joint part formed by the binding piece and the end joint part of the waterproof material layer are relatively staggered, and the opposite staggered angle is 180°, which avoids the non-radial tightening force of the joint part, causes uneven stress of the waterproof material layer, and affects the accuracy of the test result; on the fourth aspect, the width of the waterproof material layer is greater than or equal to the length of the sample; the length of the waterproof material layer is equal to the circumference of the circle formed by the projection of the sample in the upward direction, under the limitation of width and length, the required test piece structure can be formed, the width of each covering segment is at least 3 / 5 of the length of the sample; the detection failure rate caused by size inconsistency is reduced; the widths of the two covering segments are equal, which provides a relatively close detection working condition and can more accurately obtain the anti-water channeling performance; the test hole is located in the middle of the sample.Based on the central layout, the waterproof material layer is more evenly impacted by water channeling, so as to more accurately obtain the water channeling resistance of the roll material; the fifth aspect adopts the column pressure of the liquid level column, adjusts the permeable water pressure by using the water level difference, so as to simulate different hydrostatic pressure conditions, and accurately detect the water channeling resistance of the waterproof material under long-term static pressure; if the test detection is carried out under the continuous pressure working condition by using the water pump, the limit water channeling resistance of the waterproof material layer can be quickly obtained; the sixth aspect is suitable for different roll materials or coatings, and can also be combined with the specific use working condition to carry out high-precision performance detection, and has strong practicability.

[0061] The above has described the application in detail, the purpose is to let the person who is familiar with this field technology can understand the content of the application and implement, and cannot limit the protection scope of the application by this, all equivalent changes or modifications according to the spirit of the application should be covered in the protection scope of the application.

Claims

1. A water pressure and interference force eliminating based water material water channeling resistance test method, which employs a test apparatus including a test piece, a water pressure assembly, characterized by, The method comprises the steps of: 1) forming a test piece First, two cylindrical concrete or mortar samples are selected, aligned and spliced together from top to bottom at the end portions to form a butt joint; then, a waterproof material is wrapped around the two concrete sample butt end portions to form a waterproof material layer with the butt joint as a reference; then, the waterproof material layer is bound to the samples using a binding element with the butt joint as a reference, wherein the waterproof material layer is sealed from the spliced end portions, and the waterproof material layer is divided into a gap segment that seals the circumference of the butt joint, and a covering segment that covers the two sample butt end portions from the top and bottom of the gap segment, the binding element covers the entire gap segment and part of the covering segment, the length of each covering segment is less than the length of the covered sample, the two samples, the waterproof material layer and the binding element form a test piece, and a test hole is formed in one of the samples that penetrates through itself and communicates with the butt joint, the test hole, the butt joint and the gap segment form a fluid passage; 2) test and result determination The test piece is erected with the test hole facing upwards, and a water pressure assembly that forms water pressure is connected to the test hole through a sealing joint, at this time the water pressure assembly is located above the side of the test piece, the water pressure liquid enters the fluid passage to form a test pressure, wherein the test pressure includes a first movement force that channels to the gap segment, a second movement force that channels to the covering segment and the sample, and a binding force formed by the binding element that counteracts the first movement force and keeps the gap segment adhered to the sample to eliminate the dynamic interference of the gap segment on the covering segment, i.e., the anti-channeling water test is carried out under the second movement force, and the anti-channeling water property of the waterproof material layer is obtained through the pressure difference change inside the fluid passage.

2. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by, In step 1), the joint part formed by the binding element and the end joint part of the waterproof material layer are relatively offset.

3. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 2, characterized by The two joint parts are relatively offset by 180°.

4. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by The binding element is a hoop or a bandage.

5. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by The width of the waterproof material layer is greater than or equal to the length of the sample; and / or, the length of the waterproof material layer is equal to the circumference of a circle formed by the lengthwise projection of the sample.

6. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by The width of each covering segment is at least 3 / 5 of the length of the sample.

7. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 6, characterized by The widths of the two covering segments are equal.

8. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by, The test hole is located in the middle of the sample.

9. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to claim 1, characterized by: The water pressure assembly includes a pipeline, a pressure gauge, a pressure regulating valve and a liquid level column; or, the water pressure assembly includes a pipeline, a pressure gauge, a pressure regulating valve and a water pump.

10. The water pressure-based and interference-external-force-eliminating waterproof material water channeling resistance test method according to any one of claims 1 to 9, characterized by, The waterproof material layer is a hot melt polymer roll material or a hot melt construction roll material; or, the waterproof material layer includes a waterproof coating on the inner side and a waterproof roll material wrapped around the waterproof coating.

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