JP6734590B2 - Deterioration degree inspection method and deterioration degree inspection system for existing soft material - Google Patents

Description

The present invention relates to a deterioration degree inspection method, deterioration degree inspection system, and measuring instrument suitable for nondestructive inspection of deterioration degree of existing soft materials such as sealing materials and waterproof sheets.

The existing sealing material applied to the joints of the outer wall of the building deteriorates over time due to the influence of the external environment such as ultraviolet rays, rainwater, and changes in the outside air temperature, and becomes harder, and the performance such as sealing performance deteriorates. Therefore, after a certain number of years have passed, the degree of deterioration is inspected, and repairs and replacements are performed as necessary.

As a method of inspecting the degree of deterioration of the existing sealing material, a part of the existing sealing material is cut off, a sample of the existing sealing material is brought back from the site, and the components of the brought-back sample are analyzed with an infrared spectroscopic analyzer, etc. The method of inspecting the degree of deterioration is widely carried out by specifying the type of, and by slicing in parallel with the outer surface at regular intervals in the thickness direction, performing tests such as hardness test and tensile test of sliced pieces. ing.

However, with this inspection method, the inspection is carried out without taking it to the site, so it takes several days until the inspection result is obtained, the inspection cost is high, and the cut part of the existing sealing material is the sealing material of the same component. It was necessary to repair it, and it was very troublesome.

Therefore, as an inspection method of the existing sealing material, the existing sealing material that has been constructed on the building is partially cut out to obtain a test body, and at the site, the hardness of at least the cut side surface of the test body is measured by a hardness such as a durometer. A deterioration diagnosis method has been proposed, which is configured so that the deterioration of the existing sealing material can be diagnosed on the spot based on the measurement result by using a meter (for example, refer to Patent Document 1).

JP, 2010-256236, A

In the deterioration diagnosing method described in Patent Document 1, the deterioration of the existing sealing material can be diagnosed on-site using a hardness meter such as a durometer, so that the deterioration of the existing sealing material can be easily and inexpensively diagnosed.

However, since the existing sealing material is partially cut out, it is necessary to repair the cut out portion after diagnosing the deterioration, and the work is complicated. Further, the existing sealing material gradually hardens from the surface side due to the progress of deterioration, but in the invention described in Patent Document 1, the degree of deterioration is diagnosed by measuring the change in hardness in the depth direction of the existing sealing material. However, it was difficult to grasp the degree of deterioration.

The purpose of the present invention is a deterioration degree inspection method of an existing soft material that can be non-destructively tested without cutting out the existing soft material, for the deterioration degree of the existing soft material such as a sealing material or a waterproof sheet to be applied to an existing building. It is to provide a deterioration degree inspection system and a measuring instrument.

The present inventor has earnestly studied a method of easily and nondestructively inspecting the degree of deterioration of an existing soft material. As a result, the penetration load when inserting the measuring needle into the existing soft material and the pulling load when pulling out the measuring needle inserted into the existing soft material are respectively the hardness and elasticity of the existing soft material. It has been found that it shows a certain correlation with physical property values such as, by sequentially measuring at least one of the piercing load and the pulling load, without destroying the existing soft material, based on the measurement results of the existing soft material The present invention has been completed based on the idea that the degree of deterioration can be inspected.

The present invention includes the following inventions.
(1) The puncture load acting on the measuring needle is sequentially measured while piercing the existing soft material with the measuring needle, and the degree of deterioration of the existing soft material is determined based on the measured value of the puncturing load. And a method for inspecting the degree of deterioration of an existing soft material, including:

(2) The deterioration degree inspection method for an existing soft material according to (1), wherein the penetration load acting on the measurement needle is sequentially measured while the measurement needle is pierced into the existing soft material at a substantially constant speed.

(3) Sequentially measuring the pull-out load acting on the measuring needle when the measuring needle is pulled out from the existing soft material after inserting the measuring needle into the existing soft material, and the measured value of the pull-out load. Based on the above, a method for inspecting the degree of deterioration of the existing soft material, comprising: inspecting the degree of deterioration of the existing soft material.

(4) The method of inspecting the degree of deterioration of an existing soft material according to (3), wherein the pulling load acting on the measuring needle is sequentially measured while the measuring needle is pulled out from the existing soft material at a substantially constant speed.

(5) The method for inspecting the degree of deterioration of an existing soft material as described in any of (1) to (4) above, wherein the tip portion of the measuring needle is thicker than the middle portion.

(6) The deterioration degree inspection method for an existing soft material according to any one of (1) to (5), wherein the existing soft material is an existing sealing material applied to an existing building.

(7) The deterioration degree inspection method for an existing soft material according to any one of (1) to (5), wherein the existing soft material is a waterproof sheet made of a rubber material applied to an existing building.

(8) A measuring instrument for sequentially measuring the puncturing load and/or the withdrawing load of the measuring needle on the existing soft material, and a portable terminal connected to the measuring instrument for data communication, the portable terminal comprising: A load storage unit that sequentially stores the output from the measuring device, and a deterioration determination unit that determines the degree of deterioration of the existing soft material based on the load data stored in the load storage unit, and a determination made by the deterioration determination unit. A deterioration degree inspection system for an existing soft material, comprising: a display unit for displaying a result.

(9) The deterioration degree inspection system for an existing soft material according to (8), wherein the tip of the measuring needle is thicker than the middle part.

(10) A measuring needle capable of being inserted into an existing soft material, a drive unit capable of moving the measuring needle in a length direction at a constant speed, and a load cell for sequentially measuring a load acting on the measuring needle. A measuring instrument characterized by that.

(11) The measuring device according to (10), wherein the tip of the measuring needle is thicker than the middle part.

According to the deterioration degree inspection method and the deterioration degree inspection system of an existing soft material according to the present invention, as described above, the measuring needle is inserted into the existing soft material, or the measuring needle inserted into the existing soft material is pulled out. Or, when the load applied to the measuring needle is sequentially measured, the degree of deterioration of the existing soft material can be measured without cutting the existing soft material. There is no need to repair the material and the burden on the operator can be greatly reduced. Further, since a series of work of the deterioration degree inspection can be performed on site, it can be performed in a short time, easily and inexpensively as compared with the case where the sample is taken home and inspected. Furthermore, since the degree of deterioration in each part of the existing soft material in the thickness direction can be measured, it is also possible to calculate an approximate number of years until repair is required. Furthermore, by measuring the construction depth of the existing soft material to the backup material, or by determining the presence or absence of voids in the construction site of the existing soft material, it is possible to inspect the construction failure of the existing soft material. it can.

According to the measuring instrument, since the measuring needle is provided with the drive unit that can move in the length direction at a constant speed, the axial load acting on the measuring needle can be easily and accurately applied to the load cell. Can be measured. Moreover, since the measuring instrument can be configured mainly with the measuring needle, the driving section, and the load cell, a portable, compact and lightweight measuring instrument can be realized.

Overall configuration diagram of deterioration degree inspection system Block diagram of control system of deterioration degree inspection system Longitudinal section of measuring instrument IV-IV line sectional view of FIG. Sectional view taken along the line V-V in FIG. (A) is a side view of the measuring needle, and (B) is a side view of the measuring needle having another configuration. Explanatory diagram immediately before inserting the measuring needle into the existing sealing material Explanatory drawing during insertion of the measuring needle into the existing sealing material Explanatory drawing when the insertion of the measuring needle into the existing sealing material is completed Graph showing the relationship between the moving distance of the measuring needle and the piercing load Block diagram of control system of deterioration degree inspection system with other configuration Longitudinal sectional view of the measuring instrument used in the deterioration degree inspection system Explanatory view immediately before the insertion of the measuring needle into the existing sealing material when the deterioration degree inspection system is used Explanatory diagram immediately before pulling out the measuring needle from the existing sealing material when the deterioration degree inspection system is used A graph showing the relationship between the moving distance of the measuring needle and the pull-out load when the deterioration degree inspection system is used.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1 and FIG. 2, the deterioration degree inspection system 10 measures the components of the existing sealing material 50 and the measuring device 11 that sequentially measures the piercing load of the measuring needle 30 on the existing sealing material 50 as the existing soft material. An analyzing device 12 for analyzing, a printing device 13 for printing the inspection result of the existing sealing material 50, and a portable terminal 14 connected to the measuring device 11, the analyzing device 12, and the printing device 13 for data communication are provided. There is.

The existing sealing material 50 is applied to the joint portion 52 between the outer wall materials 51 adjacent to each other in the building, and the existing sealing material 50 is configured to secure the sealing property in the joint portion 52. The existing sealing material 50 is composed of a modified silicone-based, silicone-based, polysulfide-based, polyurethane-based, polyisobutylene-based, acrylic urethane-based sealing material or the like that can be generally used as a building sealing material, but other than these. It may be composed of a component sealing material.

On the back side of the joint portion 52, a backup material 53 that receives the existing sealing material 50 from the back side and is made of a soft resin or the like that is harder than the existing sealing material 50 when not deteriorated is installed. However, the rear surface side of the existing sealing material 50 may be configured to be received by a structure other than the backup material 53.

The portable terminal 14 can be configured with, for example, a personal computer, a tablet terminal device, a smartphone, or the like that includes the control unit 20, the display unit 21, and the input unit 22. The portable terminal 14 can be connected to the measuring device 11, the analysis device 12, and the printing device 13 by wire so that data communication is possible, or, for example, by near field communication such as NFC (Near Field Communication). It is also possible to connect so that data can be transmitted and received. Further, the portable terminal 14 can be connected to a host computer provided in the center through a telephone line or the like.

As the analysis device 12, for example, an infrared spectroscopic analysis device or a fluorescent X-ray analysis device which can analyze the components of the existing sealing material 50 and which can be carried can be suitably adopted. For example, portable devices such as IR (Handy FTIR4100 Exsoscan) and X-ray (Portable X-ray fluorescence analyzer Elvatech Portable) manufactured by ST Japan can be used. The analyzer 12 is not always necessary for the inspection of the degree of deterioration of the existing sealing material 50, and thus can be omitted.

As the printing device 13, a portable printing device such as an inkjet system or a thermal system, which can print the degree of deterioration and the type of the existing sealing material 50 on a sheet and can be carried, can be adopted. Incidentally. The printing device 13 is preferably provided so that the inspection result of the degree of deterioration of the existing sealing material 50 can be presented to the customer on the spot, but it can be omitted.

The measuring device 11 sequentially measures a measuring needle 30 that can be pierced into the existing sealing material 50, a driving unit 31 that moves the measuring needle 30 in the length direction at a substantially constant speed, and a load that acts on the measuring needle 30. The load cell 32 is provided and is configured as follows.

The measuring device 11 will be described. As shown in FIGS. 3 to 5, a cylindrical casing 33 that can be held and handled by hand is provided. The casing 33 has a slider 34 and a speed reducer in order from the front end side. 35, a motor 36, a battery 37, and a control unit 38 are incorporated. A pair of guide rails 33a are provided on the inner surface of the casing 33 so as to project inward along the longitudinal direction of the casing 33, and the slider 34 cannot rotate along the guide rails 33a and the longitudinal direction of the casing 33. The interior is freely movable. The slider 34 is provided with a load cell 32, the load cell 32 is provided with a measuring needle 30 extending forward, and the load cell 32 is configured so that the load acting in the length direction of the measuring needle 30 can be sequentially measured.

The speed reducer 35 is provided with a screw shaft 39 penetrating the slider 34 and rotatably supported by the front wall portion 33b of the casing 33. The slider 34 is screwed onto the screw shaft 39, and a motor 36 reduces the speed of the speed reducer 35. By decelerating the screw shaft 39 in the forward rotation direction at a constant speed via the slider 34, the slider 34 advances at a constant speed along the guide rail 33a and rotates the screw shaft 39 in the reverse rotation direction at a constant speed. As a result, the slider 34 is configured to retreat at a constant speed along the guide rail 33a. When the slider 34 moves forward, the measuring needle 30 protrudes to the front side of the casing 33 through the insertion hole 33c of the front wall portion 33b of the casing 33, and when the slider 34 moves backward, the casing 33 moves. It is configured to be housed within.

The control unit 38 receives the switch signal from the operation switch 40 such as a push switch and the output from the load cell 32 to control the motor 36, and sequentially outputs the output from the load cell 32 to the portable terminal 14. It is configured. In this control unit 38, for example, when the operation switch 40 is pressed once, the output from the load cell 32 is sequentially output to the portable terminal 14, and the motor 36 rotates the screw shaft 39 forward to move the slider 34 forward to move the slider 34 forward. 34 moves to the most advanced position, or as shown by the phantom line in FIG. 3, when the measuring needle 30 hits the backup material 53 and the output from the load cell 32 exceeds a predetermined threshold value, the motor The screw shaft 39 is reversely rotated by 36 to retract the slider 34 to the final retracted position shown by the solid line in FIG. 3, and the motor 36 is stopped at the final retracted position. The most advanced position and the most retracted position of the slider 34 are detected by a proximity switch, a sensor, or the like (not shown).

As the motor 36, a DC motor having a general configuration can be adopted, but it is also preferable to adopt a stepping motor, a servo motor or the like in order to accurately set the moving speed of the measuring needle 30 to a constant speed.

As the measuring instrument 11, if the piercing load acting on the measuring needle 30 can be measured while piercing the existing sealing material 50 with the measuring needle 30 at a substantially constant speed, a structure other than that described above is adopted. You can also do it. As described above, in the measuring device 11 configured to pierce the existing sealing material 50 with the measuring needle 30 at a substantially constant speed, the piercing depth of the measuring needle 30 into the existing sealing material 50 and the load acting on the measuring needle 30 Is preferable because the relationship can be measured easily and accurately.

However, since a constant correlation is established between the piercing speed of the measuring needle 30 into the existing sealing material 50 and the load acting on the measuring needle 30, instead of setting the speed of the measuring needle 30 to a substantially constant speed, the existing sealing material should be used. The speed of the measuring needle 30 with respect to the material 50 is sequentially measured, and the output from the load cell 32 is corrected according to the change in the speed of the measuring needle 30, so that the penetration depth of the measuring needle 30 into the existing sealing material 50 and the measurement It can also be configured to calculate the relationship with the load acting on the needle 30. For example, the drive unit 31 is omitted, the measuring needle 30 is fixed to the casing 33 in a protruding shape, a load cell 32 for measuring the axial load acting on the measuring needle 30 is provided, and the existing sealing material 50 is further provided in the casing 33. A distance sensor that sequentially measures the distance to the outer surface of the building or the outer wall material 51 of the building is provided, and the speed at which the measuring needle 30 is manually inserted into the existing sealing material 50 is sequentially determined based on the output from the distance sensor. The relationship between the piercing depth of the measuring needle 30 into the existing sealing material 50 after the measurement and the load acting on the measuring needle 30 is calculated based on the calculated speed and the output from the load cell 32. It can also be configured to do so.

As for the measuring needle 30, the tip has such a length that it can reach the backup material 53 at least when it is moved to the most advanced position, and as shown in FIG. 6(A), the tip has a tapered sharp portion. It is preferable to use a circular cross-section having a circular cross section in which 30a is formed and the base side of the sharpened portion 30a has substantially the same diameter as the base of the sharpened portion 30a. However, the cross-sectional shape of the measuring needle 30 may be a shape other than a circle, such as an ellipse or a rectangle.

The diameter of the measuring needle 30 can be set arbitrarily, but in order to minimize damage to the existing sealing material 50, it is preferable to configure the diameter as small as possible, for example, the measuring needle 30 having a diameter of about 0.2 mm to 4.0 mm. Can be preferably adopted.

Instead of the measuring needle 30, as in a measuring needle 30A shown in FIG. 6(B), a sharpened portion 30a is formed at the distal end portion, and the sharpened portion 30a extends toward the base side at the proximal end portion of the sharpened portion 30a. A large-diameter portion 30b having substantially the same diameter as the base end portion is formed, and a taper portion 30c that is connected to the base end portion of the large-diameter portion 30b and has a diameter reduced toward the base side of the measuring needle 30A is provided. It is also possible to employ a small diameter portion 30d having a diameter smaller than that of the large diameter portion 30b on the base end side. In this case, when the measuring needle 30 is inserted into the existing sealing material 50, the contact resistance between the small-diameter portion 30d and the existing sealing material 50 is reduced so that the insertion depth of the measuring needle 30 into the existing sealing material 50 is deep. Accordingly, it is possible to prevent the output from the load cell 32 from changing as much as possible due to the frictional resistance caused by the contact between the outer peripheral surface of the measuring needle 30 and the existing sealing material 50.

The control unit 20 of the portable terminal 14 includes, for example, a CPU (Central Processing Unit) that executes predetermined arithmetic processing, a RAM (Random Access Memory) that stores data, and a non-volatile ROM that stores a predetermined control program and the like. (Read Only Memory).

The RAM includes a load storage unit 23 that stores the output from the load cell 32 together with the time elapsed after the operation switch 40 is pressed, and a modified silicone-based, silicone-based, or polysulfide-based material that is commonly used as a sealing material for construction. A component storage unit 24 is provided for storing component data of sealing materials such as polyurethane-based, polyisobutylene-based, and acrylic urethane-based materials for each type of sealing material. As the component data, the same data as the output from the analysis device 12 is stored in the component storage unit 24. For example, when the analysis device 12 analyzes the components of the existing sealing material 50 by infrared spectroscopic analysis, The infrared absorption spectrum for each type is stored as component data.

The ROM stores a control program for deterioration determination processing of the existing sealing material 50 and a control program for type determination processing of the existing sealing material 50. The deterioration determining unit 25 is configured by a control program for the deterioration determining process, and the type determining unit 26 is configured by a control program for the type determining process.

The display unit 21 of the portable terminal 14 is formed of, for example, a liquid crystal display device, and the input unit 22 is formed of, for example, a touch panel integrally provided on the display unit 21.

Next, the deterioration determination process and the type determination process performed by the control unit 20 of the mobile terminal 14 will be described while describing the deterioration level inspection method of the existing sealing material 50 by the deterioration level inspection system 10.

First, the measuring device 11 is connected to the portable terminal 14, and the deterioration determination processing program of the portable terminal 14 is activated.

Next, the tip of the measuring instrument 11 is brought into contact with the outer surface of the outer wall material 51 on both sides of the existing sealing material 50 so that the measuring needle 30 faces the substantially central portion in the width direction of the existing sealing material 50, and the measurement is performed. The operation switch 40 of the measuring instrument 11 is pushed and operated with the instrument 11 being held substantially perpendicular to the outer wall member 51 by hand. Then, the motor 36 of the measuring instrument 11 is driven, the screw shaft 39 is normally rotated as shown in FIG. 7, the measuring needle 30 is moved forward together with the slider 34, and the measuring needle 30 is shown by a phantom line in FIG. The tip end of the contact part comes into contact with the outer surface of the existing sealing material 50, and the measuring needle 30 is sequentially inserted into the existing sealing material 50 as shown in FIG. Then, as shown in FIG. 9, when the tip of the measuring needle 30 comes into contact with the backup material 53 and the output from the load cell 32 exceeds a threshold value, the screw shaft 39 is reversely rotated by the motor 36, and the slider 34 moves. After moving to the last retracted position shown by the solid line in FIG. 7, the motor 36 is stopped. On the other hand, the output from the load cell 32 of the measuring device 11 is the same as the elapsed time after the push operation of the operation switch 40 in the period after the push operation of the operation switch 40 until the output from the load cell 32 exceeds the threshold value. Are sequentially stored in the load storage unit 23. However, the output from the load cell 32 is stored in the load storage unit 23 together with the moving distance of the measuring needle 30 after the pushing operation of the operation switch 40 and the rotation angle of the screw shaft 39, not the elapsed time after the pushing operation of the operation switch 40. It is also possible to do so.

Thus, based on the load data as the output from the load cell 32 stored in the load storage unit 23 and the elapsed time, as shown in FIG. 10, the moving distance of the measuring needle 30 after the operation switch 40 is pushed. And an approximate straight line showing the relationship between the puncture load acting on the measuring needle 30 is calculated, and the positions of the three gradient change points P1, P2, P3 where the inclination angle of the approximate straight line changes are obtained. Then, the gradient change point P1 is the insertion start point of the measuring needle 30 into the existing sealing material 50, the gradient change point P2 is the transition point from the deteriorated layer 50A to the healthy layer 50B, and the gradient change point P3 is the tip of the measuring needle 30. The thicknesses T1 and T2 of the deteriorated layer 50A and the sound layer 50B of the existing sealing material 50 and the total thickness and T3 of the existing sealing material 50 are determined by setting the points that are in contact with the backup material 53. Further, as the degree of deterioration of the existing sealing material 50 progresses, the existing sealing material becomes harder. Therefore, the inclination angle θ1 of the line segment connecting the gradient change points P1 and P2 and the inclination angle θ2 of the line segment connecting the gradient change points P2 and P3. The degree of deterioration can be determined based on the absolute value of the puncture load at the slope change points P1 and P2. For example, when the inclination angle θ2 or the absolute value of the puncture load at the gradient change points P1 and P2 exceeds a predetermined threshold, it is possible to determine that the existing sealing material is totally deteriorated. Therefore, the inclination angle θ1 of the line segment connecting the gradient change points P1 and P2 of the deterioration layer 50A, the inclination angle θ2 of the line segment connecting the gradient change points P2 and P3, and the absolute value of the piercing load at the gradient change points P1 and P2, The degree of deterioration of the existing sealing material 50 is determined from the thickness T1 and the like. Then, these results are displayed on the display unit 21 and, if necessary, printed on the paper by the printing device 13.

As for the degree of deterioration, the inclination angle θ1, the inclination angle θ2, the absolute value of the puncture load at the slope change points P1 and P2 and the thickness T1 can be directly displayed as numerical values, but depending on them, For example, "Level III" that requires replacement of the existing sealing material 50, "Level II" that requires replacement of the existing sealing material 50 within several years, and "Level I" that does not require replacement of the existing sealing material 50. As described above, the degree of deterioration can be displayed in three stages.

Further, if there is a void in the middle portion of the existing sealing material 50 in the thickness direction, the load decreases when the measuring needle 30 passes through the void, and the gradient change point becomes 4 or more points. Therefore, it is also possible to inspect the existing sealing material for defective construction by determining the presence or absence of a void and the size thereof depending on the number and position of the gradient change points.

On the other hand, when the type of the existing sealing material 50 is specified, the analyzer 12 is connected to the portable terminal 14 and the type determination processing program is activated. Further, of the existing sealing material 50 that is installed on the building, the existing sealing material 50 that does not adversely affect the sealing performance, for example, protruding from the joint portion 52, is cut out. Then, the cut existing sealing material 50 is set in the measuring unit 12 a of the analyzer 12, the components of the existing sealing material 50 set in the measuring unit 12 a are analyzed, and the analyzed component data is output to the portable terminal 14. In the portable terminal 14, the type of the existing sealing material 50 is specified by collating the component data stored in advance in the component storage unit 24 for each type with the component data from the analyzer 12.

The type information of the existing sealing material 50 thus obtained is displayed on the display unit 21 together with the measurement result of the degree of deterioration, printed by the printing device 13 as necessary, and provided to the customer.

In the deterioration degree inspection method and the deterioration degree inspection system 10, since the deterioration degree of the existing sealing material 50 can be measured without cutting the existing sealing material 50, the existing sealing material 50 is repaired after the deterioration degree is inspected. There is no need, and the burden on the operator can be greatly reduced. Further, since a series of work of the deterioration degree inspection can be performed on site, it can be performed in a short time, easily and inexpensively as compared with the case where the sample is taken home and inspected in the inspection room. Further, since it is possible to inspect a change in the degree of deterioration of the existing sealing material 50 in the thickness direction, it is possible to calculate an approximate number of years until the existing sealing material 50 needs to be repaired. Furthermore, by measuring the entire depth of the existing sealing material 50, it is possible to inspect whether or not the existing sealing material 50 has been constructed to an appropriate depth.

(Second embodiment)
The deterioration degree inspection system 10A shown in FIGS. 11 and 12 is basically the same as the above-described one except that the deterioration degree of the existing sealing material 50 is inspected based on the load when the measuring needle 30A is pulled out from the existing sealing material 50. Since the deterioration degree inspection system 10 of the first embodiment has the same configuration, only different parts will be described, the same members as those of the first embodiment will be designated by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 6B, the measuring needle 30A of the measuring device 11 is provided with a sharpened portion 30a, a large diameter portion 30b, a tapered portion 30c, and a small diameter portion 30d. Further, as the load cell 32A of the measuring device 11, a load cell configured to sequentially measure at least the load at the time of pulling out the measuring needle 30A pierced into the existing sealing material 50 is adopted. As the measuring needle, it is preferable to use a measuring needle 30A having a large diameter at its tip, but use the measuring needle 30 shown in FIG. 6A having a diameter substantially the same except for the sharpened portion 30a. Can also

The output from the load cell 32A when the measuring needle 30A is pulled out is stored in the load storage unit 23A of the control unit 20A after the tip of the measuring needle 30A comes into contact with the backup material 53 and the measuring needle 30A starts to retract. It is sequentially stored with the elapsed time. A control program for deterioration determination processing of the existing sealing material 50 is stored in the RAM of the control unit 20A. Note that the deterioration determination unit 25A is configured by a control program for deterioration determination processing and the like.

Next, the deterioration determination process performed by the control unit 20A of the portable terminal 14 will be described while explaining the deterioration degree inspection method of the existing sealing material 50 by the deterioration degree inspection system 10A.

First, the measuring device 11A is connected to the portable terminal 14 and the deterioration determination processing program of the portable terminal 14 is activated.

Next, the tip of the measuring instrument 11A is brought into contact with the outer surfaces of the outer wall members 51 on both sides of the existing sealing material 50 so that the measuring needle 30A faces the substantially central portion in the width direction of the existing sealing material 50, and the measurement is performed. With the instrument 11A held by the hand substantially perpendicular to the outer wall material 51, the operation switch 40 of the measuring instrument 11A is pushed and operated. Then, the motor 36 of the measuring instrument 11A is driven, the screw shaft 39 rotates forward as shown in FIG. 13, the measuring needle 30A advances together with the slider 34, and the measuring needle 30A is already installed as shown by the phantom line. The sealing material 50 is stuck. Then, as shown in FIG. 14, when the tip portion of the measuring needle 30A comes into contact with the outer surface of the existing sealing material 50 and the output from the load cell 32A exceeds the threshold value, the screw shaft 39 is reversely rotated by the motor 36, The measuring needle 30A moves to the last retracted position shown by the solid line in FIG. 13, and the motor 36 is stopped. On the other hand, the output from the load cell 32A of the measuring device 11 elapses in a period after the output from the load cell 32A exceeds the threshold value and the screw shaft 39 starts reverse rotation, and then the measuring needle 30A moves to the most retracted position. It is sequentially stored in the load storage unit 23A of the portable terminal 14 with time. However, not the elapsed time after the output from the load cell 32A exceeds the threshold value, but the output from the load cell 32A along with the moving distance of the measuring needle 30A and the rotation angle of the screw shaft 39 after the output exceeds the threshold value. It is also possible to store in.

Based on the elapsed time when the measuring needle 30A is pulled out and the load data as the output from the load cell 32A stored in the load storage unit 23A in this manner, the moving distance of the measuring needle 30A as shown in FIG. An approximate straight line showing the relationship of the load acting on the measuring needle 30A is calculated, and the positions of the three gradient change points P11, P12, P13 where the inclination angle of the approximate straight line changes are obtained. Then, the gradient change point P11 is used as the extraction start point of the measuring needle 30 from the existing sealing material 50, the gradient change point P12 is used as the transition point from the sound layer 50B to the deteriorated layer 50A, and the gradient change point P13 is used as the entire measuring needle 30A. It is set as an end point when the existing sealing material 50 is pulled out, and the thicknesses T11 and T12 of the sound layer 50B and the deteriorated layer 50A of the existing sealing material 50 and the thickness and T13 of the entire existing sealing material 50 are obtained, The inclination angle θ1 of the line segment connecting the gradient change points P11 and P12 of the deterioration layer 50A, the inclination angle θ2 of the line segment connecting the gradient change points P2 and P3, and the absolute value and thickness of the piercing load at the gradient change points P11 and P12. The degree of deterioration of the existing sealing material 50 is determined from T12 and the like. Then, these results are displayed on the display unit 21 and, if necessary, printed on the paper by the printing device 13.

It is also possible to determine whether or not the thickness T13 is equal to or greater than a predetermined value, and to determine whether or not the existing sealing material 5 has been constructed to an appropriate depth. Furthermore, if there is a void in the middle of the existing sealing material 50 in the thickness direction, the load decreases when the measuring needle 30A passes through the void, and the gradient change point becomes four or more points. Therefore, it is also possible to inspect the existing sealing material for defective construction by determining the presence or absence of a void and the size thereof depending on the number and position of the gradient change points.

In the deterioration degree inspection system 10A and the deterioration degree inspection method, the load when the measuring needle 30A is pulled out from the existing sealing material 50, that is, the load when the existing sealing material 50 is spread by the tapered portion 30c is sequentially measured, and this load is measured. The degree of deterioration of the existing sealing material 50 can be determined by utilizing that the degree of deterioration of the existing sealing material 50 changes. Therefore, the same effect as the above-described first embodiment can be obtained.

The axial load acting on the measuring needle 30A may be sequentially measured when the measuring needle 30A is inserted and when the measuring needle 30A is pulled out, and the deterioration degree of the existing sealing material 50 may be inspected based on the both load data. ..

Moreover, in the said 1st and 2nd embodiment, although the case where this invention was applied to the deterioration degree inspection method and deterioration degree inspection system 10,10A of the existing sealing material 50 of a building was demonstrated, this invention is Deterioration degree inspection method and deterioration of existing soft materials such as waterproofing sheets made of rubber constructed on the rooftop of buildings, etc. and existing soft materials such as sealing materials and rubber materials used in various equipment other than buildings The same can be applied to the degree inspection system.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and it goes without saying that the configuration can be changed without departing from the scope of the present invention.

10: Degradation degree inspection system 11: Measuring device 12: Analysis device 12a: Measuring unit 13: Printing device 14: Portable terminal 20: Control unit 21: Display unit 22: Input unit 23: Load storage unit 24: Component storage unit 25 : Deterioration determination unit 26: Type determination unit 30: Measuring needle 30A: Measuring needle 30a: Sharpened portion 30b: Large diameter portion 30c: Tapered portion 30d: Small diameter portion 31: Driving portion 32: Load cell 33: Casing 33a: Guide rail 33b: Front wall portion 33c: Insertion hole 34: Slider 35: Reduction gear 36: Motor 37: Battery 38: Control unit 39: Screw shaft 40: Operation switch 50: Existing sealing material 50A: Deteriorated layer 50B: Healthy layer 51: Outer wall material 52 : Joint part 53: Backup material 10A: Degradation degree inspection system 11A: Measuring instrument 20A: Control part 23A: Load storage part 25A: Deterioration determination part 32A: Load cell

Claims (7)

After inserting the measuring needle into the existing soft material so that a piercing hole is formed, when pulling out the measuring needle from the existing soft material, sequentially measuring the withdrawal load acting on the measuring needle, and ,
Based on the measured value of the pulling load, inspecting the deterioration degree of the existing soft material,
Deterioration degree inspection method for existing soft materials including. Wherein while pulling from the existing soft material the stylus at a substantially constant rate, the deterioration degree testing method of the existing soft material of claim 1 wherein the measured sequentially pulling load acting on the measuring needle. The method for inspecting the degree of deterioration of an existing soft material according to claim 1 or 2, wherein the tip portion of the measuring needle is thicker than the middle portion. The existing soft material, the deterioration degree testing method of the existing soft material of any one of claims 1 to 3 is existing sealant which is construction in the existing building. The existing soft material, the deterioration degree testing method of the existing soft material of any one of claims 1 to 3 is a waterproof sheet made of a rubber material which is construction in the existing building. A deterioration degree inspection system for use in any one degradation degree test method according to claim 1-5,
A measuring device for successively measuring the pull-out extraction load of the measuring needle plugged respect existing soft material as narrowing pierced hole is formed, and said measuring device and a portable terminal that is data communicably connected Prepare,
The portable terminal is
A load storage unit that sequentially stores the output from the measuring device,
Based on the load data stored in the load storage unit, a deterioration determination unit that determines the degree of deterioration of the existing soft material,
A display unit that displays a determination result by the deterioration determination unit,
An inspection system for the degree of deterioration of existing soft materials, characterized by being provided with. The deterioration degree inspection system for an existing soft material according to claim 6, wherein a tip portion of the measuring needle is thicker than an intermediate portion.

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