KR102291425B1 - Seismic performance test apparatus of seismic performance of waterproof materials - Google Patents

Abstract

The present invention provides a seismic performance testing apparatus enabling a real-time test of a fusion waterproof performance indicating a fuse state of physical waterproof performance, maintenance performance, and reinforcement performance, and seismic performance against tensile force, compression, impact, vibration, etc. caused by seismic waves that durable waterproof materials must respond to. The seismic performance testing apparatus for waterproof materials comprises: a testing main including a testing unit whose space is divided into an upper part and a lower part as a test object is attached or detached, wherein the upper part provided with an environment space and the lower part provided with a facility space; a vibrating means provided in the facility space and configured to move under the test object with a selected and controlled amplitude in vertical and horizontal directions to cause three-dimensional deformation at multiple points; and a test water circulating means letting selected and controlled test water supplied to and recovered from the environment space, thus circulating therein.

Description

Seismic performance test apparatus of seismic performance of waterproof materials

The present invention is designed to evaluate the seismic performance in a state in which waterproof performance, repair performance and reinforcement performance are combined for durable waterproofing materials that are waterproofed for floor surfaces such as concrete substrates, iron substrates, underwater/wet substrates, etc. It relates to a device for testing the seismic performance of waterproofing materials, and more specifically, the seismic performance of the durable waterproofing material according to tension, compression, impact, vibration, etc. It relates to a seismic performance testing device for waterproofing materials that maximizes the test quality by enabling real-time testing of fusion waterproofing performance in a state in which physical waterproofing performance, maintenance performance and reinforcement performance are fused.

In general, a waterproof layer is formed by applying a separate waterproofing agent to a predetermined thickness in order to prevent damage caused by rainstorms, rainstorms, etc.

This waterproofing layer is designed to prevent moisture such as rainwater or groundwater from entering through cracks, and the waterproofing layer installed on the bottom of the structure floats under various environmental conditions (underwater / high temperature / vertical flow) that can be encountered in reality. And it has a problem that can be broken.

Accordingly, it is necessary to evaluate the characteristics of the adhesiveness and flexibility of the waterproofing agent according to the environmental conditions of the substrate due to the design conditions during construction.

On the other hand, various test standards, test methods, and test devices for evaluating the physical properties of such waterproofing agents have been proposed.

In Korean Patent Application No. 10-2005-010971 (Name: Behavior testing apparatus for waterproofing agent and test method using the same / October 25, 2005), as is known in the publication, a chamber having a space; a flat plate frame having a screw thread formed on the outer periphery upwardly protruding from an upper portion of the metal plate installed and fixed to the inner bottom surface of the chamber, and having a leak hole in the center thereof; a vertical frame installed on a side wall inside the chamber to form a right angle with the flat frame; An insertion hole is made through the bottom surface so that the protruding screw coupling part of the flat frame can be inserted and seated flatly, and a space is formed so that a certain amount of water can be stored. ; a control box installed on one side of the front side of the vertical frame to control power, motion speed, emergency stop, and number of motions; a fixed plate installed at a right angle from the front upper portion of the vertical frame, the upper surface centrally axially installed, and integrally mounted with a driving motor for rotating a rotating shaft having a screw thread formed on the lower outer periphery by power; a support plate installed at a right angle to the lower portion of the fixing plate, the rotation shaft of the driving motor is rotatably penetrated and inserted into the center, and the upper end of the support rod is coupled to the upper edge portion to be installed vertically; a flow plate installed on a plurality of support rods for supporting the support plate and flowing up/down; a gap adjusting unit for adjusting the height of the flow plate, that is, the movement width; It is mounted penetratingly in the center of the flow plate to elevate the flow plate, and a screw thread is formed on the inner periphery so as to be coupled with the screw thread formed on the lower part of the rotation shaft, and a test piece fixing part having a fixing hole horizontally penetrated at the lower part thereof; ; a test specimen leaking part installed in the screw coupling part protruding on the flat frame and having a drain hole formed in the center to communicate with the leak hole formed in the center; A waterproofing agent behavior testing apparatus is described which is installed vertically between the test piece fixing part and the test piece leaking part and includes a test piece that flows with a constant width by driving the drive motor.

And in Korean Patent Application No. 10-2014-0126178 (Name: Structure behavior responsiveness test device for waterproofing materials and behavior responsiveness test method of waterproofing materials according to the test device/2014.09.22.), it is known in the Gazette As described above, in the test apparatus for testing the structural behavior response to the waterproofing material, the receiving space is formed so that the test body is provided on the inside, the receiving space is communicated with the outside on one side, and the opening and closing door is configured a main body formed on the bottom surface of the receiving space and configured with a drain pipe to discharge to the outside when water penetrates the test body during the test; It is formed in the receiving space of the main body and consists of a lower fixing part for fixing the lower end of the test body, and a behavior connecting part for fixing the upper end of the test body, and the lower fixed part is made to communicate with the drain pipe to penetrate the test body during the test. a holding part including a second through hole through which water can be drained to the outside; a behavior part configured on one side of the main body and connected to one end of the mounting part to provide a behavior width and a behavior speed to perform a behavior response performance test on the test member; A heater configured on one side of the accommodating space of the main body and heated to maintain a temperature condition of room temperature, a cooler for maintaining the accommodating space at a low temperature condition, and a temperature of the accommodation space by sensing the temperature condition of room temperature or low temperature a temperature control unit including a temperature sensor to be maintained; and a freshwater control unit configured on one side of the main body to supply or drain water so as to meet the freshwater test conditions among the test conditions;

On the other hand, in Korea Patent Application No. 10-2017-0068356 (Title: Complex behavior test apparatus for performance test of waterproofing materials corresponding to complex deterioration conditions of the underground environment / 2017.06.10.), as known in the publication, , A test body consisting of two vertically joined upper and lower test pieces is mounted inside the test chamber, and after setting the temperature or fresh water conditions in the test chamber through the control unit, a behavior test is performed on the test body, When the joint portion of the test body is broken, the test body is configured to leak to the outside through the inside of the test body. a discharge unit comprising a water leakage path for discharging to the water leak path, a water leakage sensor mounted in the middle of the leakage path, and a drain tank for collecting water supplied through the leakage path; a vertical repetition operation unit disposed above the test chamber and repeatedly moving the upper test piece of the test body in a vertical axis direction in a predetermined vertical width; a left-right rotation operation unit disposed in the lower part of the test chamber and repeatedly rotating the lower test piece of the test body in the left-right direction; a fresh water supply unit coupled to the test chamber and supplying water at a predetermined temperature; a heat source supply unit coupled to the test chamber and supplying air at a predetermined temperature; and a flow rate rotation operation unit mounted on the lower portion of the test chamber and adjusting the flow rate of fresh water accommodated therein, and a temperature sensor configured to measure the temperature of fresh water accommodated in the inner accommodation space at one upper side of the test chamber. A composite behavior test device for performance testing of waterproofing materials is described, equipped with an upper and lower photosensor at an interval in the upper center, and a hydraulic pressure gauge that measures the internal pressure on one lower side.

Korean Patent Application No. 10-2005-010971 (2005.10.25.) Korean Patent Application No. 10-2014-0126178 (2014.09.22.) Korean Patent Application No. 10-2017-0068356 (2017.06.10.)

However, the conventional waterproofing agent testing apparatus as described above has a complicated structure, so productivity is low, and thus there is an uneconomical problem.

In addition, the existing structure behavior test device is a device that simply repeats up and down motion with a fixed width to evaluate the durability in general situations. There have been criticisms that it is insufficient.

In particular, the fusion of physical waterproofing performance according to tensile, compression, shock, and vibration for seismic waves (P-wave, S-wave, love wave, rail wave) to which durable waterproofing materials must respond, as well as water-retaining performance and reinforcement performance There were problems in that the test quality could not be maximized because it could not be tested in real time due to its waterproof performance.

The present invention has been proposed to solve the problems of the prior art as described above, and an object of the present invention is to provide tensile, compression, To provide a seismic performance testing device for waterproofing materials that maximizes the test quality by enabling real-time testing of the fusion waterproof performance in a state in which the seismic performance according to shock and vibration, physical waterproofing performance, maintenance performance, and reinforcement performance are fused. it is in

In the seismic performance test apparatus of the present invention for achieving the object of the present invention as described above, as the test object is detached, the space is divided vertically by the test object, the environment space is provided at the upper part, and the lower part a test body having a test unit provided with a facility space; a vibrating means provided in the facility space and configured to flow with an amplitude selectively adjusted in vertical and horizontal directions to give three-dimensional deformation to a plurality of points under the test object; and a test water circulation means for supplying, recovering, and circulating the test water selected and controlled as the environmental space.

The vibrating means includes: a base body installed in the facility space and adhesively fixed while supporting the lower part of the test object fixed to the test unit; a rotating member for fixing the lower part of the base body to freely rotate in vertical, left, and right directions; a fixing base to which the rotating member is fixed to freely rotate in up, down, left, right, front and rear directions; and a pressing member for pressing the rotating member to freely rotate in up, down, left, and right directions with respect to the holder.

The pressing member has a rotation radius around the center of the rotating member in the lower portion of the rotating member, and while moving in a circular motion, the binding end with the rotating member is a pressing body configured to vertically reciprocate with an amplitude selected and adjusted vertically; ; and a moving body configured to rotate the pressing body in a circular motion with a rotation radius around the center of the rotating member.

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The seismic performance testing apparatus of the waterproof material according to the present invention as described above measures the amplitude having the form of seismic waves (P wave, S wave, Love wave, rail wave) for a plurality of points with respect to a test object (durable waterproof material). Not only is it given while selectively adjusting, but also, as it is possible to input and circulate the test water whose temperature is controlled on the upper part of the test object, it is possible to provide tensile, It has the effect of maximizing the test quality by being able to test the fusion waterproof performance in a state in which the seismic performance according to compression, shock, vibration, etc., and the physical waterproofing performance, the maintenance performance, and the reinforcement performance are fused in real time.

1 is a schematic perspective view showing a seismic performance testing apparatus of a waterproofing material according to an embodiment according to the present invention.
Figure 2 is a schematic illustration showing the seismic performance test apparatus of the waterproof material according to the present embodiment.
Figure 3 is a schematic illustration showing the seismic performance test apparatus of the waterproof material according to the present embodiment.
Figure 4 is a schematic illustration showing a test unit constituting the seismic performance test apparatus of the waterproof material according to the present embodiment.
Figure 5 is a schematic illustration showing a state in which the test object is mounted on the seismic performance test apparatus of the waterproof material according to the present embodiment.
6 to 9 are schematic exemplary views showing the use state of the seismic performance test apparatus of the waterproof material according to the present embodiment.
10 to 13 are schematic exemplary views showing the vibration means constituting the seismic performance test apparatus of the waterproof material according to the present embodiment.
14 is a schematic exemplary view showing the control state of the seismic performance test apparatus of the waterproof material according to the present embodiment.

Hereinafter, with reference to the accompanying drawings, a detailed description of the seismic performance testing apparatus of a waterproofing material according to a preferred embodiment according to the present invention is as follows.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

1 to 14 are views showing a seismic performance testing apparatus and (1) of a waterproofing material according to an embodiment according to the present invention. Evaluate the seismic performance of the durable waterproof material (test object 10) that is waterproofed on the floor, such as a base, iron base, and underwater/wet base, in a state where waterproof performance, repair performance, and reinforcement performance are combined. applies to doing

That is, seismic performance, physical waterproofing performance and repair performance according to tension, compression, shock, vibration, etc. for seismic waves (P wave, S wave, love wave, rail wave) in real time for the durable waterproof material (test object, 10) It is possible to test the fusion waterproof performance in a state in which the reinforcement performance is fused in real time, thereby maximizing the test quality.

In the seismic performance test apparatus 1 of the waterproof material according to this embodiment, the space is divided up and down by the test object 10 while the test object 10 such as the durable waterproof material is attached and detached. A test body 2 having a space (A) and a test unit 21 having a facility space (B) in the lower portion thereof; Vibration means (3) provided in the facility space (B) and configured to flow with an amplitude selectively adjusted in vertical and horizontal directions to give three-dimensional deformation to a plurality of points in the lower part of the test object (10); made including

That is, the test object 10 installed in the test part 21 of the test body 2 is flowed with an amplitude selectively adjusted in vertical and horizontal directions through the vibration means 3 in the vertical and horizontal directions in the vertical and horizontal directions. Various types of seismic waves are tested in real time, and seismic performance is tested in real time.

In the above, the test object 10 may be formed of a 'plate body' in the shape of a 'pad', and is preferably applied according to the user's selection.

The seismic performance testing apparatus 1 of the waterproof material according to the present embodiment made as described above includes a test water circulation means 4 for supplying, recovering, and circulating the test water selected and controlled as the environmental space (A). made including

That is, as the test object 10 tested in the test unit 21 through the test water circulation means 4 is tested for the physical waterproofing performance, water-retention performance, and reinforcement performance in water/rain water, etc., as a whole, The fusion waterproof performance in the state of fusion of seismic resistance, physical waterproofing performance, maintenance performance and reinforcement performance will be tested in real time.

Accordingly, the test quality for the test object 10 is maximized.

In the above, the test water may be supplied circulating while the temperature is selectively controlled by the user.

Therefore, it is possible to stably perform the performance test on the test object 10 in a high temperature/room temperature/low temperature state.

As described above, the test subject ( By forming a circulation path through which the test water, which is controlled while the temperature is selected, is supplied and recovered in the upper part of 1), it is possible to apply the test method for the seismic performance of the test object (waterproof material).

On the other hand, the test body 2 in the above, is provided with an opening and closing door 22 configured to open and close the test unit 21 while rotating the shaft on the front side, so that the input and collection of the test object 10 is performed.

At this time, the test body 2 and the opening and closing door 22 may be sealed through a 'watertight sealing structure'; The waterproof sealing structure may have a structure to which a conventionally known technology is applied, and is preferably applied according to a user's selection.

In the above, between the environmental space (A) and the facility space (B) on the inner surface of the test part (21) of the test body (2), the binding member (23) to which the test object (10) is fitted may be provided.

That is, it is fixed and replaced while attaching and detaching the test object 10 to the test part 21 through the binding member 23, so that a plurality of test objects 10 can be sequentially tested, respectively.

In the above, the binding member 23 is fixed to the inner surface of the test part 21 while having a length on the remaining inner surfaces (both sides/rear) except for the front surface opened and closed by the opening and closing door 22, and is fixed to each other in the longitudinal direction. It may include 'binding frames' in which binding grooves to be bound while the edge portion of the test object 10 is fitted on the facing surfaces, respectively.

That is, in a state in which the front side is opened by the opening/closing door 22, the edge portions of the test object 10 may be detached and fixed and collected while fitting each of the binding frames.

At this time, the binding portion of the binding frame and the test object 10 is bound while having watertightness, so that unauthorized leakage does not occur during the waterproof performance test for the test water injected into the environmental space (A). have.

In the seismic performance test apparatus 1 of the waterproof material according to the present embodiment made as described above, the vibration means 3 is installed in the facility space B and the test object fixed to the test unit 21 (10) and a base body (31) for adhesively fixing while supporting the lower portion; a rotating member (32) for fixing the lower portion of the base body (31) to freely rotate in up, down, left and right directions; a fixing base 33 to which the rotating member 32 is fixed to freely rotate in the up, down, left, right, front and rear directions; and a pressing member (34) for pressing the rotating member (32) to freely rotate in up, down, left, and right directions with respect to the fixing base (33).

That is, the test unit 21 presses the rotating member 32 fixed and supported on the holder 33 through the pressing member 34 in vertical and horizontal directions to freely rotate in vertical and horizontal directions. As a result, the base body 31 bound to the rotating member 32 freely rotates in the up, down, left, right, front and rear directions.

Accordingly, the seismic resistance performance of the test object 10 is tested while giving the amplitude of various seismic plates to the test object 10 that is seated and supported on the upper part of the base body 31 .

At this time, if the amplitude pressed by the pressing member 34 is selectively adjusted in real time, it is possible to provide a wave in the form of a substantial seismic wave, thereby improving the test quality.

In the above, the rotating member 32 includes a rotating ring 321 that is shaft-coupled to the inside of the through-hole of the fixing base 33 to be axially rotatably coupled and has a rotating hole penetrating therein; The end of the pressing member 34 is connected to the bottom surface to be pressed, and the rotational ring 321 axially rotates in a direction orthogonal to the rotational direction of the rotation ring 321 on the inner surface of the rotation ring 321 . a rotating body 322 that is shaft-coupled to do so; A support plate 323 coupled to the upper portion of the rotating body 322 and on which the base body 31 is seated and fixed may be included.

That is, the rotating body 322 is vertically pressed by the pressing member 34 and axially rotated inside the rotating ring 321 , and the rotating ring 321 is the rotating body 322 of the rotating body 322 . The supporting plate 323 coupled to the upper portion of the rotating body 322 while axially rotating inside the through hole of the holder 33 while assisting the shaft rotational movement and the base body 31 fixed to the supporting plate 323 ) is allowed to freely rotate in the up, down, left, right, front and rear directions, giving a practical seismic wave type wave.

In the above, the support plate 323 with respect to the rotating body 322 may be shaft-coupled to be axially rotatable; The 'axial coupling structure' may be formed of a shaft coupling structure to which a conventionally known technique is applied, and is preferably applied according to the user's selection.

In the seismic performance test apparatus 1 of the waterproof material according to the present embodiment made as described above, the pressing member 34 controls the control means 5 to control and supply the power of the power supply unit 51 . The rotating member ( 32) and a pressing body 341 such that the binding end of the rotating body 322 and the rotating body 322 are configured to perform a linear reciprocating motion with an amplitude selectively adjusted vertically; and a moving body 342 configured to rotate the pressing body 341 in a circular motion with a rotation radius around the center of the rotating member 32 .

That is, while the moving body 342 rotates the pressing body 341, the pressing body 341 is located in the rotation track of the pressing body 341 under the rotating body 322. The rotating body ( By pressing the lower portion of the 322), the rotating body 322 freely rotates in the up, down, left, right, front and rear directions, thereby giving a wave in the form of a substantial seismic wave.

In the above, the moving body 342 includes a driving motor 61 configured to generate a rotational force selected through the control of the control means 5; a rotational shaft 62 which is axially coupled to the fixing table 33 disposed in the facility space B so as to be idling, is bent outwardly on the upper portion, and the pressing body 341 is fixed at the end thereof; and a power transmission member 63 configured to receive the rotational force of the driving motor 61 to rotate the moving rotating shaft 62 .

That is, the rotational force generated by the driving motor 61 rotates the movement rotation shaft through the power transmission member 63, so that the pressing body 341 rotates while passing through the rotation track.

Accordingly, the base body 31 is subjected to a wave motion.

In the above, the power transmission member 63 is provided with coupling gears respectively coupled to the rotation shaft of the driving motor 61 and the motion rotation shaft 62, and coupling gears configured to be gear-coupled to the coupling gears at both ends, respectively. It can be made of a 'gear binding structure' including a connected shaft, and is preferably applied according to the user's choice.

In the above, the pressurizing body 341 is fixed to the end of the moving rotation shaft 62 and is a fluid configured to linearly reciprocate the piston rod bound to the rotating body 322 through adjustment of fluid pressure (air pressure/hydraulic pressure). a cylinder 71; a fluid pressure regulating device 72 configured to selectively supply and recover fluid pressure to and from the fluid pressure cylinder 71 through the control of the control means (5); A connection member 73 configured to spatially connect between the fluid pressure control device 72 and the fluid pressure cylinder 71; may be included.

That is, the fluid pressure is regulated in the fluid pressure control device 72 through the connection member 73 while being supplied to and recovered from the fluid pressure cylinder 71, and the piston rod of the fluid pressure cylinder 71 reciprocates in a straight line. It selectively regulates the state of movement.

Accordingly, the selectively controlled wave state is imparted to the base body 31 .

In the above, the fluid pressure regulating device 72 may have a structure to which a conventionally known pneumatic/hydraulic regulating technique is applied; It is preferable to be appropriately applied according to the user's selection.

In the above, the connection member 73 passes through the inside of the motion rotation shaft 62 to which the fluid pressure cylinder 71 is coupled, and is spatially connected to the fluid pressure movement path of the fluid pressure cylinder 71. lessons; The fluid pressure control device 72 and the fluid pressure induction hole to be spatially connected to the idling connection hose connected; may be made including.

That is, even when the rotational shaft 62 rotates, the fluid pressure is stably supplied and recovered to the fluid pressure cylinder 71 through the connection hose and the fluid pressure induction hole, thereby realizing a stable wave pressure. can

As described above, the base body 31 supporting the lower part at a plurality of points with respect to the test object 10 through the seismic performance test apparatus 1 of the waterproof material according to the present embodiment is placed in the center of the lower part of the base body 31 . Selectively adjusted amplitude of seismic wave shape is given to the test object 10 fixed to the upper part of the base body 31 by sequentially moving parts having the same radius around a point in a straight line with an amplitude adjusted vertically. It is possible to test by applying the seismic performance test method of waterproof materials.

In the seismic performance test apparatus 1 of the waterproof material according to the present embodiment made as described above, the test water circulation means 4 includes a water filling tank 41 provided in the test body 2 and filled with test water; ; a temperature control unit 42 configured to heat the test water stored in the water filling tank 41 through the control of the control means 5 to be controlled by receiving power from the power supply unit 51; a supply pipe 43 configured to supply the test water heated or cooled by the temperature control unit 42 to the environmental space (A); a recovery pipe 44 configured to recover the test water filled in the environmental space A to the water filling tank 41; It may include;

That is, after the test water of the water filling tank 41 passes through the temperature control unit 42 through the supply pump 45 and is heated or cooled according to the suggested temperature conditions, the water passes through the supply pipe 43 to the After being supplied to the environmental space (A), a circulation path of the test water returned to the water filling tank (41) through the recovery pipe (44) is formed.

Accordingly, in the environmental space (A), physical waterproofing performance, maintenance performance, and reinforcing performance are given to the test object 10 and tested.

On the other hand, the test body 21 is provided with a leak check hole 24 to check the leak water leaked from the environmental space (A) to the facility space (B), the leak of the test object (10) performance can be tested.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

1: test device 10: test object
2: test body 21: test part
22: opening and closing door 23: binding member
24: leak check hole
3: vibration means
31: base body 32: rotating member
321: rotating ring 322: rotating body
323: support plate 33: fixing bar
34: pressing member 341: pressing body
342: movement
4: test water circulation means 41: filling tank
42: temperature control unit 43: supply pipe
44: return pipe 45: supply pump
5: control means 51: power supply
61: drive motor 62: motion rotating shaft
63: power transmission member
71: fluid pressure cylinder
72: fluid pressure generator 73: connection member
A : Environment space B : Facility space

Claims (5)

As the test object 10 is attached and detached, the space is divided up and down by the test object 10, the environmental space (A) is provided in the upper part, and the test part (21) in which the facility space (B) is provided in the lower part. The branch test body (2) and; It is provided in the facility space (B) and is provided in the facility space (B) to flow with an amplitude selectively adjusted in vertical and horizontal directions in order to give three-dimensional deformation to a plurality of points under the test object (10). and a base body 31 for adhesively fixing while supporting the lower part of the test object 10 fixed to the test part 21, and a rotating member for fixing the lower part of the base body 31 to freely rotate in vertical, left, and right directions. (32), a fixing base 33 to which the rotating member 32 is fixed to freely rotate in the up, down, left, right, front and rear directions, and free rotation of the rotating member 32 in the vertical, left, and right directions with respect to the fixing table 33 . a vibrating means (3) having a pressing member (34) for pressing it to move; In the seismic performance testing apparatus (1) of the waterproofing material comprising;
The pressing member 34,
In the lower part of the rotating member 32, the binding end with the rotating member 32 moves in a circle with a rotation radius around the center of the rotating member 32, and the binding end with the rotating member 32 vertically reciprocates with an amplitude selectively adjusted. a pressing body 341;
Seismic performance testing apparatus for waterproofing material, characterized in that it comprises; the pressing body (341) having a rotation radius around the center of the rotating member (32) and circular motion (342).
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