Carbonation boundary determination system including a sample acquisition device unit

Abstract

The present invention relates to a carbonation boundary determination system comprising a sample acquisition device capable of collecting drilling dust generated when drilling the surface of a concrete structure onto a carbonation reagent paper and correlating the reaction result with drilling depth information. According to the present invention, a carbonation reaction profile can be generated using depth-specific reaction data, and the carbonation start boundary can be determined.

Description

Technology Field

[0001] The present invention relates to a carbonation boundary determination system comprising a sample acquisition device. More specifically, the present invention relates to a carbonation boundary determination system comprising a sample acquisition device that enables stable collection of drilling dust generated while drilling the surface of a concrete structure using a drill onto a carbonation reagent paper, and simultaneously enables easier verification of the sample reaction state corresponding to the drilling depth. Background Technology

[0002] FIG. 1 is an example of a conventional detachable small carbonation depth measuring device.

[0003] The above detachable small carbonation depth measuring device comprises a fixed part (11) mounted on a drill (10), a guide part (20) set in contact with a concrete surface (C), a slide part (30) that slides along the guide part (20), and a carbonation measuring part (40) mounted on the slide part (30) to check whether the drilling powder is carbonated.

[0004] That is, the fixed part (11) is mounted on the drill (10) to set the overall position of the device, and the guide part (20) is formed to guide the movement path of the slide part (30) while in contact with the concrete surface (C).

[0005] Additionally, the slide section (30) moves along the guide groove (22) of the guide section (20) to move the carbonation measuring section (40) toward the concrete surface, and allows the drilling dust generated during the drilling process to flow into the carbonation measuring section (40).

[0006] The carbonation measuring unit (40) reacts with the cutting powder while the measuring paper (43) is impregnated with a phenolphthalein solution to induce a color change, thereby allowing visual confirmation of whether carbonation has occurred.

[0007] However, such conventional technology has limitations in that the drilling process and the carbonation determination process are not completely integrated, and the operator must individually check the reaction state of the drilling powder, making it difficult to sufficiently ensure objectivity and reproducibility of the measurement.

[0008] In addition, since the reading results may vary depending on the drop position of the drilling powder, the contact state with the measurement site, the color development state, etc., there are limitations in precisely determining the actual carbonation depth.

[0009] Meanwhile, the general method of measuring carbonation depth using a drill involves forming a hole in a concrete structure, spraying a 1% phenolphthalein solution onto the inner surface of the hole to check for carbonation, and then measuring the carbonation depth using a vernier caliper or similar tool.

[0010] However, this method has a problem in that the worker must visually inspect the inside of the hole and measure the depth by inserting a measuring instrument into the hole, so the measurement error can be significant depending on the worker's skill level, working posture, dust conditions, etc.

[0011] Figure 2 is an example of a conventional concrete carbonation hole depth measuring device for structural safety diagnosis.

[0012] As shown in FIG. 2, the conventional device is configured to measure the depth to the bottom of the hole relatively precisely by including a digital depth gauge (51, 52), a buffer ring, a measuring rod, a support leg and a crossbar, etc.

[0013] However, while such a device may be advantageous for precisely measuring the total depth of the formed hole, it does not directly show whether the measurement exactly matches the depth at which the actual carbonation boundary begins.

[0014] In other words, while it is possible to precisely measure the depth of the hole, there are limitations in continuously and objectively determining the location where carbonation begins.

[0015] Figure 3 is another example of a conventional concrete carbonation hole depth measuring device for structural safety diagnosis.

[0016] That is, FIG. 3a) shows the state before the compression spring is mounted, and FIG. 3b) shows the state after the compression spring (43) is inserted. The spring mounting part (41) is fixed in close contact with the surface of the concrete structure (20), and the drill anchoring part (42) and the connecting member move horizontally as the drill (10) advances, thereby compressing the compression spring (43).

[0017] In addition, the digital depth scale displays the travel distance of the drill (10) as a digital value to check the drilling depth. Prior art literature

[0018] Korean Patent No. 10-2075909 (Publication Date: February 11, 2020), Title of Invention: "Detachable Small Carbonation Depth Measuring Device" Korean Patent No. 10-2253278 (Publication Date: May 20, 2021), Title of Invention: "Concrete Carbonation Hole Depth Measuring Device for Structural Safety Diagnosis" Korean Patent No. 10-2155872 (Registration Date: September 8, 2020), Title of Invention: "Carbonation Depth Measuring Device" Korean Patent No. 10-1743970 (Registration Date: May 31, 2017), Title of Invention: "Sampling Module for Concrete Chloride Testing" The problem to be solved

[0019] The present invention has the objective of providing a carbonation boundary determination system comprising a sample acquisition device that can stably collect drilling powder onto a carbonation reagent paper when measuring carbonation of a concrete structure using a drill, and secure the reaction result by correlating it with drilling depth information.

[0020] Furthermore, the present invention has the objective of enabling the carbonation initiation boundary and the carbonation progress status to be determined more objectively and reproducibly by organizing sample reaction results obtained at multiple depths into a continuous carbonation reaction profile. Moreover, the invention has the objective of improving the usability of maintenance management for concrete structures by providing the determination results to managers or enabling their storage and management. means of solving the problem

[0021] As a means for achieving the aforementioned technical problem, a carbonation boundary determination system including a sample acquisition device according to the present invention comprises a sample acquisition device used to confirm a carbonation reaction by taking drilling powder generated when drilling the surface of a concrete structure onto a carbonation reagent paper, and to determine a carbonation start boundary using the reaction result of the drilling powder and depth information, wherein the sample acquisition device comprises: a spring mounting part on which a carbonation reagent paper is placed; and a drill anchoring part formed to be connected to a drill including a drill bit. It includes a compression spring disposed in the spring mounting part and providing elastic restoring force for the movement of the drill anchor, and a digital depth scale that indicates the travel distance or drilling depth of the drill to correspond the reaction result of the drilling powder with the depth information; the drilling powder generated when the surface of the concrete structure is drilled by the drill is collected onto the carbonation reagent paper to secure depth-linked reaction data, and the depth-linked reaction data is provided to a reaction data processing system, wherein the reaction data processing system comprises: a depth-linked sample data acquisition unit that organizes the sample reaction data obtained through the sample acquisition device and the corresponding depth information together to secure the reaction results of drilling samples acquired at multiple different depth positions relative to the surface of the concrete structure in the form of depth-response value correspondence data; and a reaction curve modeling unit that receives the discrete depth-response value correspondence data provided from the depth-linked sample data acquisition unit and models it into a continuous reaction curve in the depth direction by reflecting the trend of change in reaction values ​​appearing between each depth.The apparatus comprises: a boundary determination criterion setting unit that receives a continuous reaction curve formed by the reaction curve modeling unit and sets criteria and processing conditions for determining the carbonation start boundary based on at least one of the magnitude of the reaction value, the rate of change of the reaction value according to depth, the difference between adjacent sections, the pattern of continuous change of the reaction, or a preset determination criterion; and a reaction profile generation unit that generates a carbonation reaction profile along the depth direction of the concrete structure based on the continuous reaction curve formed by the reaction curve modeling unit and the boundary determination criterion set by the boundary determination criterion setting unit, distinguishes and expresses sections where the reaction hardly appears, transition sections where the reaction changes, and sections where the reaction is maintained, and also generates a depth value corresponding to the carbonation start boundary. Effects of the invention

[0022] According to the present invention, when measuring carbonation of a concrete structure using a drill, drilling powder can be stably collected on a carbonation reagent paper, and the reaction results can be verified by correlating them with depth information, thereby improving the convenience and reliability of the measurement.

[0023] In addition, by organizing reaction results obtained at multiple depths into a continuous carbonation reaction profile, the carbonation initiation boundary, reaction transition zone, and carbonation depth can be determined more objectively and reproducibly.

[0024] Furthermore, since the results can be utilized for providing to managers, storing, comparing, and managing history, the usability of maintenance management for concrete structures can be improved.

[0025] In addition, by organizing reaction results obtained at multiple depths into a continuous carbonation reaction profile, the carbonation initiation boundary, reaction transition zone, and carbonation depth can be determined more objectively and reproducibly.

[0026] Furthermore, since the results can be utilized for providing to managers, storing, comparing, and managing history, the usability of maintenance management for concrete structures can be improved. Brief explanation of the drawing

[0027] FIG. 1 is an example of a conventional detachable small carbonation depth measuring device, FIG. 2 is an example of a conventional concrete carbonation hole depth measuring device for structural safety diagnosis, FIG. 3 is another example of a conventional concrete carbonation hole depth measuring device for structural safety diagnosis, FIG. 4 and FIG. 5 are example photographs of the sample acquisition device part of the present invention, FIG. 6 is an example of a carbonation boundary determination system (A) including the sample acquisition device part of the present invention. Specific details for implementing the invention

[0028] Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0029] Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0030] [Sample acquisition device part (100) of the present invention]

[0031] FIGS. 4 and FIGS. 5 are exemplary photographs of the sample acquisition device (100) of the present invention.

[0032] The above sample acquisition device (100) is a test implementation of a device corresponding to the concrete carbonation hole depth measuring device for structural safety diagnosis according to Patent Registration No. 10-2867708, and through this, the configuration and effects of the present invention were specifically confirmed.

[0033] Accordingly, the sample acquisition device (100) may include a drill (110), a carbonation reagent paper (120), a carbonation measurement reagent paper holder (130), and a digital depth scale (140), as shown in FIGS. 4 and 5.

[0034] The above drill (110) is formed to collect drilling dust (G) by drilling the surface of a structure (B), including a drill handle, a drill head, and a drill bit (111).

[0035] The carbonation reagent paper (120) is placed on the upper front side of the spring mounting part (131) of the carbonation measuring reagent paper holder (130) to directly receive the drilling powder (G) discharged by the drill bit (111).

[0036] At this time, the carbonation reagent paper (120) may be impregnated with or atomized with a carbonation detection solution, for example, a 1% phenolphthalein solution may be applied.

[0037] When this phenolphthalein solution reacts with the alkaline component of the shaving powder (G), it turns red or reddish-purple, so the shaving powder (G) originating from the non-carbonated region is discolored, whereas the shaving powder (G) originating from the carbonated region is relatively not discolored.

[0038] Therefore, the operator can indirectly determine whether carbonation is progressing by checking whether the phenolphthalein solution develops color.

[0039] That is, the progress of carbonation at the corresponding depth is confirmed by checking whether there is a color change on the carbonation reagent paper (120).

[0040] The above carbonation measuring reagent paper holder (130) is an auxiliary device configured to stably collect drilling powder (G) generated during the drilling process of a structure (B) using a drill (110) onto a carbonation reagent paper (120) and simultaneously check the drilling depth.

[0041] The above carbonation measuring reagent paper holder (130) may include a spring mounting part (131), a drill fixing part (132), a compression spring (133), and a coupling member.

[0042] The spring mounting portion (131) is a block-shaped member positioned on the surface side of the structure (B) to support the carbonation reagent paper (120), and is formed so that drilling dust (G) generated during the drilling process can fall onto the carbonation reagent paper (120).

[0043] Additionally, an insertion groove into which a compression spring (133) is inserted may be formed on the inside or back of the spring mounting part (131).

[0044] The front surface of the spring mounting part (131) is formed to be in close contact with the surface of the structure (B), so that the reference position can be stably maintained even during drilling operations.

[0045] The above drill fixing part (132) is a part that mechanically connects the drill (110) and the carbonation measurement reagent paper holder (130).

[0046] One side of the drill fixing part (132) may be formed in the shape of a circular ring and coupled to the drill handle of the drill (110), and the other side may be formed in the shape of a rod extending from the outer surface of the circular ring and extending toward the insertion part or insertion groove formed in the spring mounting part (131).

[0047] Accordingly, as the drill (110) advances and drills the structure (B), the drill anchor (132) moves relative to the spring mounting part (131) in conjunction with the movement of the drill (110).

[0048] The above compression spring (133) is placed in the insertion groove of the spring mounting part (131) and provides an elastic restoring force against the movement of the drill fixing part (132).

[0049] That is, when the drill (110) advances toward the structure (B) to perform drilling, the drill anchor (132) moves while compressing the compression spring (133), and during this process, the spring mounting part (131) maintains a state of being in close contact with the surface of the structure (B).

[0050] Accordingly, the carbonation measuring reagent paper holder (130) can stably secure a surface reference position of the structure (B) while following the forward movement of the drill (110), and can more consistently maintain the collection position of the drilling powder (G) according to the drilling depth.

[0051] The above-mentioned connecting member mutually connects the drill fixing part (132) and the spring mounting part (131) so that the movement of the drill (110) is stably transmitted within the structure of the carbonation measurement reagent paper holder (130).

[0052] Accordingly, the carbonation measuring reagent paper holder (130) and the drill (110) perform drilling while connected to each other.

[0053] The digital depth scale (140) is installed on the spring mounting part (131) or at a location connected thereto and is formed to display the travel distance or drilling depth of the drill (110) as a digital value. The operator can check through the digital depth scale (140) how deep the drill bit (111) has penetrated from the surface of the structure (B).

[0054] Therefore, the reaction result of the drilling powder (G) dropped on the carbonation reagent paper (120) and the drilling depth information can be verified by correlating them with each other.

[0055] Accordingly, when the drill (110) drills the surface of the structure (B), the drilling dust (G) generated by the drill bit (111) falls onto the carbonation reagent paper (120) immediately adjacent to the drilling location, and the drilling dust (G) reacts with the reagent to indicate whether there is a color change.

[0056] At the same time, the advance depth of the drill (110) is displayed through a digital depth scale (140), so the operator can directly check the reaction state of the drilling powder (G) collected at a specific depth by correlating it with the depth information.

[0057] That is, the sample acquisition device (100) collects drilling powder (G) generated during the drilling process in conjunction with depth information onto a carbonation reagent paper (120), and the reaction result can be verified on-site.

[0058] However, although such a sample acquisition device (100) has the advantage that the operator can immediately visually check the reaction state of the cutting powder (G) at the site, it is difficult to consider that the objectivity and reproducibility of the measurement are sufficiently ensured.

[0059] In other words, it merely numerically displays the drill travel distance or drilling depth, and has limitations in clearly distinguishing whether the location is the boundary where carbonation actually begins or a depth that already includes the non-carbonated region.

[0060] Accordingly, in the present invention, the sample acquisition device (100) is utilized as a basic structure applicable to a carbonation boundary determination system (A) that calculates a carbonation start boundary (C) based on sample reaction data acquired along a measurement hole formed inwardly from the concrete surface of a structure (B).

[0061] [Carbonation reaction profiling of the present invention]

[0062] FIG. 6 is an exemplary diagram of the carbonation boundary determination system (A) of the present invention.

[0063] It was observed that the measurement of the carbonation depth of concrete by the sample acquisition device (100) above can be performed by drilling the surface of the structure (B) using a drill, checking whether the drilling powder (G) collected at a specific depth reacts with a reagent, and determining whether carbonation has occurred based on the result.

[0064] However, since carbonation does not proceed uniformly to the same depth at all locations in the actual structure (B), it is difficult to continuously and reliably determine how far carbonation has progressed from the surface of the structure (B) and exactly where the boundary where carbonation begins is, using only a single depth value obtained at a single measurement location.

[0065] That is, while the measurement by the sample acquisition device (100) is effective for confirming whether a reaction occurs at a specific depth or the depth of the hole, it cannot directly indicate how the reaction changes throughout the depth direction, so there are limitations in more objectively determining the carbonation progression pattern and the carbonation start boundary.

[0066] Furthermore, since measurement results can vary depending on operator skill, differences in measurement location, deviations in reagent reactions, working posture, differences in drilling speed, and local differences in concrete material, it is difficult to conduct a quantitative and reproducible evaluation based solely on judgments derived from a single point or a single depth value.

[0067] Accordingly, the present invention applies a carbonation reaction profiling technique.

[0068] Here, “carbonation reaction profiling” refers to a concept for more objectively determining the boundary at which carbonation begins and the degree of progression by not determining carbonation using only a single depth value, but by correlating sample reaction results obtained at multiple depths from the surface of the structure (B) in the internal direction according to depth order, and organizing them into a reaction flow in the depth direction.

[0069] In other words, the present invention can be described as a method for determining the carbonation state by utilizing the “reaction flow of the entire depth direction” rather than a “measurement value at a single point.”

[0070] As shown in FIGS. 5 and 6, a sample acquisition device (100) including a drill (110) and a carbonation measurement reagent paper holder (130) may be applied to the surface of the structure (B), thereby allowing a measurement hole to be formed inwardly from the concrete surface of the structure (B) and allowing a drilling sample to be acquired at different depths.

[0071] At this time, the drilling samples obtained at each depth come into contact with the carbonation reagent paper (120) to produce a reaction result.

[0072] In addition, the digital depth scale (140) indicates how far the drill (110) has penetrated from the surface of the structure (B), so the operator can correlate the drilling dust (G) obtained at which depth and the reaction of the drilling dust (G) with each other.

[0073] In this context, carbonation reaction profiling involves not only examining samples from a single depth but also sequentially collecting reaction results from multiple depths extending inward from the surface to continuously determine how the reaction changes across the entire depth range.

[0074] For example, if samples are obtained at depths of 2 mm, 4 mm, 6 mm, 8 mm, and 10 mm using a digital depth scale (140), the presence or intensity of color development at each depth can be checked, and by arranging the multiple reaction values ​​obtained in this way according to depth and interpreting them as a single continuous reaction flow, it is easier to determine how far carbonation has progressed inside the structure (B).

[0075] A continuous reaction flow organized along the depth direction in this way can be called the “carbonation reaction profile (R).”

[0076] The above carbonation reaction profile (R) can be divided into a carbonation region near the surface, a transition region further inside, and a non-carbonation region further inside, and the point where the transition region begins or the point where the reaction begins to change in earnest can be used as a criterion for determining the carbonation start boundary (C).

[0077] Accordingly, the carbonation boundary determination system (A) according to the present invention enables the carbonation progress state of a structure (B) to be identified in the form of a spatial distribution in the depth direction, determines the carbonation start boundary (C) using the carbonation reaction profile (R) and its change characteristics, and further enables the evaluation of the carbonation progress state and the provision of the results to an administrator.

[0078] [Configuration of Carbonation Boundary Discrimination System (A)]

[0079] Referring to FIG. 6, the above carbonation boundary determination system (A) may include a sample acquisition device unit (100), a reaction data processing system (200), a carbonation boundary determination system (300), an administrator notification system (400), and a server (500).

[0080] First, the sample acquisition device (100) may include the previously described drill (110), carbonation reagent paper (120), carbonation measurement reagent paper holder (130), and digital depth scale (140).

[0081] The above sample acquisition device (100) acquires a drilling sample at a depth from the surface of the structure (B) inward, and simultaneously secures information on the depth at which the sample was acquired.

[0082] At this time, the data obtained through the sample acquisition device (100) may be depth-linked response data in which the depth value obtained by each sample and the sample response value at that depth correspond to each other, and may be organized, for example, in the form of “depth-response value” pair data or array data for multiple depths.

[0083] The depth-specific reaction data acquired from the sample acquisition device (100) can be input into a field terminal, for example, a PC, tablet, mobile terminal, or a terminal equivalent thereto used in the field, and the input data can be transmitted to and processed by a reaction data processing system (200). At this time, the reaction data can be input in a form that includes the presence or absence of color at each depth, color intensity, color change value, or a reaction index value quantified therefrom.

[0084] That is, the present invention acquires a drilling sample at different depths through the sample acquisition device (100) and utilizes the reaction result of the sample as a preprocessing or data acquisition means to secure the result in the form of depth-linked reaction data corresponding to depth information, thereby enabling the subsequent carbonation start boundary (C) to be determined more objectively and reproducibly.

[0085] The above reaction data processing system (200) receives the depth-specific reaction data acquired as described above and organizes it into a continuous carbonation reaction profile (R) in the depth direction.

[0086] In addition, the reaction data processing system (200) can perform a processing function to determine or calculate the carbonation start boundary (C), the carbonation progress depth, and the reaction transition section based on the organized carbonation reaction profile (R).

[0087] To this end, the reaction data processing system (200) may include a depth-linked sample data acquisition unit (210), a reaction curve modeling unit (220), a boundary determination criterion setting unit (230), and a reaction profile generation unit (240).

[0088] The depth-linked sample data acquisition unit (210) collects sample reaction data obtained through the drill (110) and the carbonation measurement reagent paper holder (130), and organizes depth information corresponding to the data.

[0089] More specifically, the depth-linked sample data acquisition unit (210) performs the function of organizing the reaction results of drilling samples acquired at multiple different depth positions relative to the surface of the structure (B) by corresponding them to each depth value.

[0090] For example, for samples acquired at depths of 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc., the presence or absence of color development, color intensity, color change value, or a numerical response index value thereof can be checked, and input data can be obtained by corresponding this to each depth value in a 1:1 manner. That is, the depth-linked sample data acquisition unit (210) performs the function of obtaining “what kind of reaction a sample acquired at a certain depth showed” in the form of a data set organized according to depth order, and the data obtained at this time may be in the form of depth-response value correspondence data such as, for example, “(depth 2 mm, response value r1), (depth 4 mm, response value r2), (depth 6 mm, response value r3).”

[0091] The above reaction curve modeling unit (220) receives discrete depth-response value correspondence data obtained as above and performs the function of modeling it into a continuous reaction flow in the depth direction.

[0092] More specifically, the reaction curve modeling unit (220) can arrange a plurality of reaction values ​​arranged along the internal direction from the surface of the structure (B) in order of depth and express them as a single continuous reaction curve by reflecting the change trend of the reaction values ​​appearing between each depth.

[0093] For example, when reaction values ​​r1, r2, r3, r4, and r5 are obtained at depths of 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc., the reaction curve modeling unit (220) can analyze how the reaction values ​​change in a pattern as the depth increases and model them in the form of a curve showing how the reaction continues over the entire depth range, rather than simply listing individual measurement points.

[0094] At this time, the reaction curve modeling unit (220) can form a reaction curve by reflecting the difference in reaction values ​​between adjacent depths, the trend of increasing or decreasing reaction, the section where the reaction change appears rapidly, and the section where a relatively stable reaction is maintained.

[0095] Accordingly, individual reaction values ​​that were dispersed by depth can be reconfigured into a single reaction flow that changes continuously from the surface of the structure (B) inward.

[0096] Therefore, the reaction curve modeling unit (220) is a key component that generates a continuous reaction curve so that the carbonation progress state can be understood more intuitively and objectively by converting individual reaction values ​​at each depth into a continuous and interpretable reaction flow in the depth direction, rather than keeping them as simple point data.

[0097] The boundary determination criteria setting unit (230) receives a continuous reaction curve formed by the reaction curve modeling unit (220) and performs the function of setting criteria and processing conditions to determine the carbonation start boundary (C) from the reaction curve.

[0098] More specifically, the boundary determination criteria setting unit (230) analyzes the flow of response values ​​that change continuously along the depth direction and organizes them so that sections where almost no response appears, sections where the response changes gradually or rapidly, and sections where the response is maintained stably can be distinguished from one another.

[0099] That is, the boundary determination criteria setting unit (230) can set the location where the reaction change begins in the continuous reaction curve, the location where the reaction slope changes abruptly, or the location where the reaction value changes above a certain level as candidate points for boundary determination.

[0100] In addition, the boundary determination criteria setting unit (230) can reduce distortion of boundary determination caused by temporary deviations or local noise at a specific measurement point by considering the pattern of change in response across multiple depth intervals together, rather than determining based only on individual response values ​​at a single depth.

[0101] That is, the boundary determination criterion setting unit (230) can distinguish the carbonation region, the reaction transition section, and the non-carbonation region based on the change trend appearing throughout the reaction curve, and can be said to serve the role of formalizing the location that serves as the boundary as the carbonation start boundary (C). Here, the formalization can be performed using at least one of the magnitude of the reaction value itself, the rate of change of the reaction value according to depth, the difference between adjacent sections, the pattern of continuous change in the reaction, or a determination criterion that is pre-set or empirically derived.

[0102] Accordingly, the boundary determination criterion setting unit (230) is not limited to a specific calculation method and can be implemented in various processing methods capable of deriving boundary determination criteria from a continuous reaction curve.

[0103] The above reaction profile generation unit (240) performs the function of generating a carbonation reaction profile (R) along the depth direction of the structure (B) based on a continuous reaction curve formed by the reaction curve modeling unit (220) and a boundary determination criterion set by the boundary determination criterion setting unit (230).

[0104] More specifically, the reaction profile generating unit (240) can organize how the reaction values ​​change from the surface of the structure (B) in the internal direction into a single profile form based on the result of modeling individual reaction values ​​by depth as a continuous reaction flow.

[0105] At this time, the reaction profile generating unit (240) is not limited to simply displaying a reaction curve, but can distinguish and express sections on the reaction curve where almost no reaction occurs, transition sections where the reaction changes, and sections where the reaction is maintained stably.

[0106] Additionally, the reaction profile generation unit (240) may mark the point where the reaction characteristics substantially change according to the criteria set in the boundary determination criteria setting unit (230) as the carbonation start boundary (C), or generate a depth value corresponding to the carbonation start boundary (C).

[0107] The carbonation reaction profile (R) generated in this way can provide a reaction distribution along the depth direction of the structure (B) in a visual or data form, and, if necessary, can be output in a form that includes the carbonation start boundary (C), reaction transition section, carbonation progress depth, and reaction characteristics for each section.

[0108] In addition, the reaction profile generation unit (240) can transmit the generated carbonation reaction profile (R) to a carbonation boundary determination system (300), an administrator notification system (400), or a server (500) to enable subsequent boundary determination, status evaluation, result storage, or provision to an administrator.

[0109] Therefore, the reaction profile generating unit (240) can be described as a key component that improves the practicality and usability of carbonation boundary determination by reconstructing the carbonation progression pattern, which is difficult to identify with individual measurements or simple curves alone, into a profile form over the entire depth direction of the structure (B), and by generating an analysis result including the carbonation start boundary (C).

[0110] The above carbonation boundary determination system (300) receives information regarding the carbonation reaction profile (R), carbonation start boundary (C), reaction transition section, and carbonation progress depth provided by the reaction data processing system (200), and can perform the function of finally determining or evaluating the carbonation progress status of the structure (B).

[0111] More specifically, the carbonation boundary determination system (300) can determine the distribution of carbonation zones, reaction transition zones, and non-carbonation zones along the internal direction from the surface of the structure (B) based on the carbonation reaction profile (R) generated by the reaction profile generation unit (240), and finally determine where the carbonation start boundary (C) is formed.

[0112] In addition, the carbonation boundary determination system (300) can generate an evaluation result of the carbonation state of the structure (B) by comprehensively considering the location of the carbonation start boundary (C), the width of the reaction transition section, the depth of carbonation progress, and the characteristics of the change in reaction value according to the depth direction.

[0113] The above administrator notification system (400) can perform the function of transmitting the determination result or evaluation result generated by the carbonation boundary determination system (300) to the administrator.

[0114] More specifically, the above-mentioned administrator notification system (400) can provide the administrator terminal with the result of calculating the carbonation start boundary (C), the depth of carbonation progress, the characteristics of the reaction transition section, or the evaluation result regarding the carbonation state of the structure (B).

[0115] At this time, the above-mentioned administrator terminal may be a PC, tablet, mobile terminal, or an information processing terminal equivalent thereto.

[0116] In addition, the above-mentioned manager notification system (400) provides not only a simple warning signal but also at least one of the carbonation reaction profile (R), the location of the carbonation start boundary (C), the depth of carbonation progress, reaction characteristics by section, and comparison information with past measurement results, thereby enabling the manager to more intuitively understand the condition of the structure (B).

[0117] The above server (500) is linked with the sample acquisition unit (100), reaction data processing system (200), carbonation boundary determination system (300), and administrator notification system (400) and can perform the function of storing, managing, or transmitting measurement data, processing results, determination results, and administrator-provided information.

[0118] More specifically, the server (500) can store depth-linked reaction data input from the sample acquisition device (100) or the field terminal, a carbonation reaction profile (R) generated by the reaction data processing system (200), a carbonation start boundary (C) and status evaluation result derived from the carbonation boundary determination system (300), and a notification history provided through the administrator notification system (400).

[0119] In addition, the server (500) can accumulate and manage data acquired from multiple structures (B), multiple measurement locations, or different points in time, thereby enabling the carbonation progression history over time, the degradation trend by location, or the comparative analysis of repeated measurement results.

[0120] Accordingly, the carbonation boundary determination system (300) is a core determination component that finally determines the carbonation progress status of a structure (B) based on a carbonation reaction profile (R), the administrator notification system (400) is an information transmission component that provides the determination result to an administrator, and the server (500) can be described as a management base component that stores, manages, compares, and links related data and result information.

[0121] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0122] The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0123] 100: Sample acquisition device 110 : Drill 111: Drill bit 120 : Carbonation reagent paper 130: Reagent paper holder for carbonation measurement 131: Spring mounting part 132: Drill fixing part 133 : Compression spring 140 : Digital depth ruler 200 : Response Data Processing System 210: Depth-linked sample data acquisition unit 220: Reaction curve modeling unit 230: Boundary determination criteria setting unit 240: Response profile generation unit 300: Carbonation Boundary Discrimination System 400: Administrator Notification System 500: Server A: Carbonation boundary identification system B: Structure C: Carbonation initiation boundary G: Grinding powder R: Carbonation reaction profile

Claims

Claim 1 A carbonation boundary determination system comprising a sample acquisition device used to determine a carbonation start boundary (C) by taking drilling dust (G) generated when drilling the surface of a concrete structure (B) onto a carbonation reagent paper (120) to confirm the carbonation reaction, and using the reaction result and depth information of the drilling dust (G), wherein the sample acquisition device comprises: a spring mounting part (131) on which the carbonation reagent paper (120) is placed; and a drill anchoring part (132) formed to be connected to a drill (110) including a drill bit (111); It includes a compression spring (133) disposed on the spring mounting part (131) to provide elastic restoring force for the movement of the drill anchoring part (132), and a digital depth scale (140) that indicates the travel distance or drilling depth of the drill (110) to correspond the reaction result of the drilling powder (G) with the depth information; the drilling powder (G) generated when the surface of the concrete structure (B) is drilled by the drill (110) is collected on the carbonation reagent paper (120) to secure depth-linked reaction data; the depth-linked reaction data is provided to a reaction data processing system (200); the reaction data processing system (200) organizes the sample reaction data obtained through the sample acquisition device part together with the corresponding depth information to secure the reaction result of the drilling sample acquired at multiple different depth positions relative to the surface of the concrete structure (B) in the form of depth-reaction value corresponding data, and a depth-linked sample data acquisition part (210). A reaction curve modeling unit (220) that receives discrete depth-response value correspondence data provided by the depth-linked sample data acquisition unit (210) and models it into a continuous reaction curve in the depth direction by reflecting the change trend of the reaction value appearing between each depth;A carbonation boundary determination system comprising a sample acquisition device, characterized by including: a boundary determination criterion setting unit (230) that receives a continuous reaction curve formed by the reaction curve modeling unit (220) and sets criteria and processing conditions for determining the carbonation start boundary (C) based on at least one of the magnitude of the reaction value, the rate of change of the reaction value according to depth, the difference between adjacent sections, the pattern of continuous change of the reaction, or a preset determination criterion; and a reaction profile generation unit (240) that generates a carbonation reaction profile (R) according to the depth direction of the concrete structure (B) based on the continuous reaction curve formed by the reaction curve modeling unit (220) and the boundary determination criterion set by the boundary determination criterion setting unit (230), distinguishes and expresses sections where the reaction hardly appears, transition sections where the reaction changes, and sections where the reaction is maintained, and also generates a depth value corresponding to the carbonation start boundary (C). Claim 2 A carbonation boundary determination system comprising a sample acquisition device, wherein, in claim 1, the depth-linked sample data acquisition unit (210) obtains depth-response value correspondence data by corresponding at least one of the presence or absence of color development, color intensity, color change value, or a numerical reaction index value thereof to each depth value in a 1:1 ratio for samples acquired at a plurality of depth positions, the reaction curve modeling unit (220) forms a continuous reaction curve that reflects the difference in reaction values ​​between adjacent depths, the tendency of reaction increase or decrease, the section where reaction change appears rapidly, and the section where reaction is maintained using the depth-response value correspondence data, the boundary determination criterion setting unit (230) sets the location where reaction change begins, the location where the reaction slope changes, or the location where the reaction value transitions above a certain level in the continuous reaction curve as boundary determination candidate points, and the reaction profile generation unit (240) generates the carbonation reaction profile (R) by distinguishing the carbonation region, the reaction transition section, and the non-carbonation region based on the boundary determination candidate points.

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