A method for detecting and analyzing high strength properties of ultra-high performance concrete

Abstract

The invention relates to the technical field of high-strength performance detection of ultra-high performance concrete, and specifically discloses a high-strength performance detection and analysis method for ultra-high performance concrete, the method comprising: concrete specimen performance detection grouping, concrete compressive strength performance analysis, concrete flexural strength performance analysis, concrete anti-penetration performance analysis, concrete anti-chemical erosion performance analysis and concrete high-strength performance evaluation; the invention comprehensively evaluates whether the high-strength performance of concrete meets the standard from multiple levels of compressive strength, flexural strength, anti-penetration performance and chemical erosion resistance, and realizes multi-angle display of the deformation of concrete specimens under the action of forces in different directions, thereby improving the accuracy of the compressive strength performance analysis of concrete, and evaluates its chemical erosion resistance from the perspective of whether the compressive performance of concrete changes after chemical erosion, and accurately quantifies the degree of weakening of the mechanical bearing capacity of concrete by chemical erosion.

Description

Technical Field

[0001] The present invention relates to the technical field of ultra-high performance concrete high-strength performance detection, and in particular to an ultra-high performance concrete high-strength performance detection and analysis method. Background Art

[0002] Ultra-high performance concrete has been widely used in many fields such as bridges, high-rise buildings, and marine engineering due to its excellent high strength and high durability. Traditional concrete testing methods are often unable to accurately capture the high strength characteristics of ultra-high performance concrete and provide accurate guidance for material optimization. Therefore, there is an urgent need for a comprehensive, accurate, and actual working condition ultra-high performance concrete high strength performance testing and analysis method.

[0003] For example, the Chinese patent publication number CN110044705A discloses a method for testing the compressive properties of concrete based on construction, including the following steps: S1, sampling: S2, specimen preparation: S3, maintenance: S4, inspection: S5, testing. The method of the present invention is rigorous, the test data is accurate, and it brings convenience to the concrete compression test. It can test concrete under different temperature environments, increase the test range, effectively improve the accuracy of the test data, and ensure the overall quality of the concrete. The test piece is compacted and smoothed by a vibration table and a tamping rod to ensure the flatness of the pressure-bearing surface, which provides convenience for testing. At the same time, there will be no gaps inside the test piece after compaction, which ensures the feasibility of the test piece and solves the problem of misjudgment of data deviation caused by unqualified test pieces.

[0004] For example, the Chinese patent publication number CN113310882A discloses a method for evaluating the resistance of cement concrete to low-temperature sulfate corrosion, including: performing a surface hardness test on multiple uncorroded cement concrete samples to obtain an initial hardness. Performing a low-temperature sulfate corrosion test on the sample. Cleaning the surface of the cement concrete sample after the corrosion test at preset intervals, and performing a surface hardness test on multiple test points of the eroded position of the sample under the same conditions as the initial hardness test to obtain the corrosion hardness. Calculate the hardness loss rate of the corresponding sample, and calculate the average hardness loss rate of the corresponding sample group. According to the average hardness loss rate, obtain the evaluation result of the sample's resistance to low-temperature sulfate corrosion. This method can more accurately evaluate the entire process of low-temperature sulfate corrosion of cement concrete, especially can intuitively and effectively characterize and predict TSA corrosion in low-temperature sulfate corrosion, thereby more accurately evaluating the ability of cement concrete to resist low-temperature sulfate corrosion.

[0005] The following problems still exist in the existing technology: 1. The current dimension of analysis of high-strength performance of concrete is relatively single, and it does not comprehensively evaluate whether the high-strength performance of concrete meets the standards from multiple aspects such as compressive strength, flexural strength, anti-penetration performance and chemical corrosion resistance. It is difficult to accurately and comprehensively judge whether the high-strength performance of concrete meets the standards, and it is impossible to deeply understand the intrinsic relationship and synergy between various performance indicators.

[0006] 2. Currently, in the analysis of concrete compressive properties, the pressure is applied in a single direction, and the pressure is not applied from both the same and opposite directions. It is impossible to display the deformation of concrete specimens under the action of forces in different directions from multiple angles and levels, which reduces the comprehensiveness and accuracy of the analysis of concrete compressive strength performance.

[0007] 3. At present, in the analysis of concrete's resistance to chemical corrosion, its resistance to chemical corrosion is only evaluated based on the change in the average hardness loss rate of the concrete specimen surface, without considering the change in the compressive properties of the concrete after chemical corrosion to evaluate its resistance to chemical corrosion. It is impossible to accurately quantify the degree of weakening of the mechanical bearing capacity of concrete caused by chemical corrosion, resulting in difficulty in accurately estimating the safety margin and service life of the structure in actual engineering applications, which greatly increases the later maintenance costs of the project and even potential safety risks. Summary of the invention

[0008] In view of this, in order to solve the problems raised in the above background technology, a high-strength performance detection and analysis method of ultra-high performance concrete is proposed.

[0009] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides a method for detecting and analyzing the high-strength performance of ultra-high performance concrete, comprising the following steps: S1, concrete specimen performance detection grouping: making a target batch of concrete into a number of concrete specimens, dividing the several concrete specimens into a compression test group, a flexural test group and a durability test group in equal proportion, and extracting the width, height and length of the concrete specimens.

[0010] S2. Concrete compressive strength performance analysis: The concrete specimens in the compressive test group are divided into a group with pressure applied in the same direction and a group with pressure applied in different directions in equal proportions. The contour images corresponding to each concrete specimen in the group with pressure applied in the same direction and the group with pressure applied in different directions are collected to analyze the compressive strength performance index of the target batch of concrete. .

[0011] S3. Analysis of concrete flexural strength performance: Conduct three-point bending tests on each concrete specimen in the flexural test group, extract the specimen span and maximum load at the moment of fracture of each concrete specimen in the flexural test group, and analyze the flexural strength performance index of the target batch of concrete .

[0012] S4. Analysis of concrete anti-penetration performance: The concrete specimens in the durability test group are divided into an anti-penetration performance group and an anti-chemical erosion group in equal proportion. The total amount of electricity passed by each concrete specimen in the anti-penetration performance group during each monitoring period is collected, and the anti-penetration performance index of the target batch of concrete specimens is analyzed. .

[0013] S5. Analysis of concrete anti-chemical erosion performance: Set different immersion times for each concrete specimen in the anti-chemical erosion group, collect test information of each concrete specimen in the anti-chemical erosion group after reaching the corresponding set immersion time, and analyze the anti-chemical erosion performance index of the target batch of concrete specimens .

[0014] S6. Concrete high-strength performance evaluation: Analyze the durability performance index of the target batch of concrete, and evaluate whether the high-strength performance of the target batch of concrete meets the standard. If it does not meet the standard, feedback will be given immediately. If it meets the standard, it indicates that there is no problem with the high-strength performance of the target batch of concrete.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: (1) The present invention improves the accuracy and comprehensiveness of the evaluation of the high-strength performance of concrete by comprehensively evaluating whether the high-strength performance of concrete meets the standards from multiple aspects such as compressive strength, flexural strength, anti-penetration performance and chemical corrosion resistance, and helps to gain a deep insight into the intrinsic relationship and synergy between various performance indicators.

[0016] (2) The present invention applies forces in both the same and opposite directions in the analysis of concrete compressive properties, thereby realizing a multi-angle and multi-level display of the deformation of concrete specimens under the action of forces in different directions, thereby improving the comprehensiveness and accuracy of the analysis of concrete compressive strength properties.

[0017] (3) The present invention evaluates the chemical corrosion resistance of concrete not only from the perspective of changes in the concrete structure itself, but also from the perspective of whether the compressive properties of concrete change after chemical corrosion. It accurately quantifies the degree of weakening of the mechanical bearing capacity of concrete caused by chemical corrosion, helps to accurately estimate the safety margin and service life of the structure in actual engineering applications, and greatly reduces the maintenance costs and even potential safety risks of the later stage of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 The figure is a schematic flow chart of the steps of the method of the present invention.

[0020] Figure 2 It is a schematic diagram of the application of force in the compressive strength of concrete specimens of the present invention.

[0021] Figure 3 The present invention is a flow chart for judging whether the high-strength performance of the concrete meets the standards.

[0022] Description of the accompanying drawings: 1. Concrete specimen, 2. Downward pressure of the vertical concrete specimen, 3. Upward pressure of the vertical concrete specimen. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 As shown, the present invention provides a method for detecting and analyzing high-strength performance of ultra-high performance concrete, including: S1, concrete specimen performance detection grouping: making a target batch of concrete into a plurality of concrete specimens, dividing the plurality of concrete specimens into a compression detection group, a flexural detection group and a durability detection group in equal proportion, and extracting the width, height and length of the concrete specimens.

[0025] It should be noted that the width, height and length of the concrete specimen are extracted from the concrete specimen production standard.

[0026] See also Figure 2 As shown, S2, concrete compressive strength performance analysis: the concrete specimens in the compression test group are divided into a same-direction pressure application group and a different-direction pressure application group in equal proportion, the contour images corresponding to each concrete specimen in the same-direction pressure application group and the different-direction pressure application group are collected, and the compressive strength performance index of the target batch of concrete is analyzed .

[0027] In a specific embodiment of the present invention, the same-direction pressure application group refers to applying a downward pressure perpendicular to the concrete specimen to each concrete specimen in the same-direction pressure application group, and the different-direction pressure application group refers to applying a downward pressure perpendicular to the concrete specimen and an upward pressure perpendicular to the concrete specimen to each concrete specimen in the different-direction pressure application group at the same time.

[0028] It should be noted that the contour images corresponding to the concrete specimens in the same-direction pressure application group and the different-direction pressure application group are acquired by the installed high-definition cameras.

[0029] In a specific embodiment of the present invention, the specific process of analyzing the compressive strength performance index of the target batch of concrete is: locating the deformation contour from the contour image corresponding to each concrete specimen in the unidirectional pressure application group and the unidirectional pressure application group.

[0030] The deformation contours corresponding to each concrete specimen in the same-direction pressure application group are overlapped and compared with the initial contours corresponding to the concrete specimens stored in the database to obtain the overlapping contour volume corresponding to each concrete specimen in the same-direction pressure application group, which is recorded as ,in, Indicates the number of the concrete specimen in the group under the same direction of pressure application. .

[0031] The initial contour volume is located from the initial contour corresponding to the concrete specimen and recorded as .

[0032] Calculation of deformation of concrete specimens in the group under unidirectional pressure , ,in, represents the number of concrete specimens in the group with the same direction pressure applied, Indicates the volume ratio of the overlapping contours used as reference. Represents a natural constant.

[0033] The deformation of the concrete specimens in the group with pressure applied in the same direction is calculated in the same way as the deformation of the concrete specimens in the group with pressure applied in the opposite direction. .

[0034] Calculate the compressive strength performance index of the target batch of concrete , ,in, and They represent the weights of the compressive strength performance evaluation corresponding to the set pressure in the same direction and pressure in different directions, .

[0035] In a specific embodiment of the present invention, The setting value of is 0.5. The set value is 0.5. When calculating the compressive strength performance index of the target batch of concrete, the compressive strength performance evaluation corresponding to the application of unidirectional pressure and the application of lateral pressure are equally important. They complement each other and provide a basis for the comprehensive evaluation of the compressive strength performance of concrete.

[0036] The embodiment of the present invention applies forces from both the same direction and the opposite direction in the analysis of concrete compressive performance, thereby realizing multi-angle and multi-level display of the deformation of concrete specimens under the action of forces in different directions, thereby improving the comprehensiveness and accuracy of the analysis of concrete compressive strength performance.

[0037] S3. Analysis of concrete flexural strength performance: Conduct three-point bending tests on each concrete specimen in the flexural test group, extract the specimen span and maximum load at the moment of fracture of each concrete specimen in the flexural test group, and analyze the flexural strength performance index of the target batch of concrete .

[0038] It should be noted that the three-point bending test refers to: using a flexural testing machine, accurately adjust the distance between the two supports to the span of the specimen, the span is usually 3 times the height of the specimen, place the specimen stably in the middle of the span, load it at a constant rate until the specimen breaks, and record the load value at the moment of fracture.

[0039] In a specific embodiment of the present invention, the specific process of analyzing the flexural strength performance index of the target batch of concrete is as follows: the width and height of the concrete specimen are respectively recorded as and .

[0040] The specimen span and the maximum load at the moment of fracture of each concrete specimen in the flexural test group are recorded as and ,in, Indicates the number of the concrete specimen in the flexural test group. .

[0041] Calculate the flexural strength of each concrete specimen in the flexural test group , .

[0042] Calculate the flexural strength performance index of the target batch of concrete , ,in, represents the number of concrete specimens in the flexural test group, Indicates the standard flexural strength of concrete specimens.

[0043] S4. Analysis of concrete anti-penetration performance: The concrete specimens in the durability test group are divided into an anti-penetration performance group and an anti-chemical erosion group in equal proportion. The total amount of electricity passed by each concrete specimen in the anti-penetration performance group during each monitoring period is collected, and the anti-penetration performance index of the target batch of concrete specimens is analyzed. .

[0044] It should be noted that the anti-penetration performance testing method is: after each concrete specimen in the anti-penetration performance group is sealed, one side is immersed in a solution containing 3% sodium chloride, and the other side is connected to an electrode, a constant voltage is applied, and the total amount of electricity passing through each concrete specimen in each monitoring time period is measured through the installed electric energy meter.

[0045] In a specific embodiment of the present invention, the specific process of analyzing the anti-permeability performance index of the target batch of concrete specimens is as follows: taking the monitoring time period as the horizontal coordinate and the total amount of electricity passed as the vertical coordinate, constructing a deviation curve of the amount of electricity passed through each concrete specimen in the anti-permeability performance group, and locating the slope value from the curve as the growth rate of the amount of electricity passed through each concrete specimen in the anti-permeability performance group, and marking it as ,in, Indicates the number of the concrete specimen in the anti-penetration performance group. .

[0046] Calculate the anti-penetration performance index of the target batch of concrete specimens , ,in, Indicates the referenced power growth rate. Indicates the number of concrete specimens in the anti-penetration performance group.

[0047] S5. Analysis of concrete anti-chemical erosion performance: Set different immersion times for each concrete specimen in the anti-chemical erosion group, collect test information of each concrete specimen in the anti-chemical erosion group after reaching the corresponding set immersion time, and analyze the anti-chemical erosion performance index of the target batch of concrete specimens .

[0048] In a specific embodiment of the present invention, the test information includes the number of cracks appearing on the surface, the length of each crack, and the maximum load at the moment of fracture in the compressive strength test.

[0049] It should be noted that the number of cracks on the surface and the length of each crack are collected in the following manner: 1) Image acquisition: Use a high-definition camera to collect the surface image of the concrete specimen; 2) Image preprocessing: Convert the collected color image into a grayscale image, which can reduce the amount of data while highlighting the contrast between the crack and the background; 3) Crack identification and segmentation: According to the difference in grayscale values ​​between crack pixels and background pixels, select a suitable threshold to segment the image into crack areas and background areas, and determine pixels with grayscale values ​​lower than the threshold as crack pixels, and pixels higher than the threshold as background pixels; 4) Crack number counting and length measurement: After completing crack identification and segmentation, the number of cracks can be counted by marking and counting the crack areas, which can be used The region labeling algorithm marks adjacent crack pixels as a connected region. Each connected region represents a crack. Finally, the number of connected regions is counted to obtain the number of cracks. For each crack, the image processing software estimates its length by calculating the number of crack pixels.

[0050] It should also be noted that the maximum load at the moment of fracture in the compressive strength test is collected in the following manner: each concrete specimen in the chemical corrosion resistance group is placed at the center of the pressure plate of the universal material testing machine after the immersion time has reached the specified time, ensuring that the axis of the specimen coincides with the loading axis of the testing machine to avoid eccentric loading. During the loading process, the testing machine automatically records the pressure and displacement data, and when the specimen is damaged, the maximum damage load is recorded.

[0051] In a specific embodiment of the present invention, the specific process of analyzing the chemical erosion resistance index of the target batch of concrete specimens is as follows: extracting the number of cracks appearing on the surface, the length of each crack, and the maximum load at the moment of fracture in the compressive strength test from the test information of each concrete specimen in the chemical erosion resistance group after reaching the corresponding set immersion time, and calculating the surface change abnormality index of the concrete specimens in the chemical erosion resistance group respectively. and compressive strength variation anomaly index .

[0052] In a specific embodiment of the present invention, the specific process of calculating the surface change abnormality index of the concrete specimens in the chemical erosion resistance group is as follows: the number of cracks appearing on the surface of each concrete specimen in the chemical erosion resistance group after reaching the corresponding set immersion time is recorded as ,in, Indicates the number of the concrete specimen in the chemical corrosion resistance group. .

[0053] The maximum value is extracted from the lengths of the cracks appearing on the surface of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time, and recorded as .

[0054] Calculate the surface cracking degree of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , ,in, and They respectively represent the allowed number of cracks and crack length.

[0055] From the surface cracking degrees of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time, the surface cracking degree after the longest immersion time is extracted and recorded as .

[0056] Calculation of surface variation anomaly index of concrete specimens in the chemical erosion resistance group , ,in, Indicates the surface cracking degree of the set reference, Indicates the number of concrete specimens in the chemical corrosion resistance group.

[0057] In a specific embodiment of the present invention, the specific process of calculating the abnormal index of compressive strength variation of concrete specimens in the chemical corrosion resistance group is as follows: the length of the concrete specimen is recorded as .

[0058] The maximum load at the moment of fracture in the compressive strength test of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time is recorded as .

[0059] Calculate the compressive strength of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , .

[0060] The initial compressive strength of the concrete specimen is extracted from the database and recorded as .

[0061] Calculate the compressive strength change rate of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , .

[0062] The compressive strength deviation curve of the concrete specimens in the chemical erosion resistance group was constructed with the immersion time of the concrete specimens as the horizontal coordinate and the compressive strength change rate as the vertical coordinate, and the slope value was located from the curve as the compressive strength change growth rate of the concrete specimens in the chemical erosion resistance group, which was marked as .

[0063] Calculation of the abnormal index of compressive strength variation of concrete specimens in the chemical corrosion resistance group , ,in, Indicates the rate of increase in compressive strength change of the set reference.

[0064] Calculate the chemical corrosion resistance index of the target batch of concrete specimens , ,in, and They represent the weights of the set surface change abnormality index and compressive strength change abnormality index corresponding to the chemical corrosion resistance performance evaluation. .

[0065] In a specific embodiment of the present invention, The setting value of is 0.5. The set value is 0.5. When calculating the chemical corrosion resistance index of the target batch of concrete specimens, the surface change abnormality index and the compressive strength change abnormality index are both extremely important in the evaluation of chemical corrosion resistance. It cannot be simply judged which one is more important. They reflect the chemical corrosion resistance of concrete from different aspects.

[0066] The embodiment of the present invention not only evaluates the chemical corrosion resistance of concrete from the perspective of changes in the concrete structure itself, but also evaluates the chemical corrosion resistance of concrete from the perspective of whether the compressive properties of concrete change after chemical corrosion, accurately quantifies the degree of weakening of the mechanical bearing capacity of concrete caused by chemical corrosion, helps to accurately estimate the safety margin and service life of the structure in actual engineering applications, and greatly reduces the maintenance costs and even potential safety risks of the later stage of the project.

[0067] S6. Concrete high-strength performance evaluation: Analyze the durability performance index of the target batch of concrete, and evaluate whether the high-strength performance of the target batch of concrete meets the standard. If it does not meet the standard, feedback will be given immediately. If it meets the standard, it indicates that there is no problem with the high-strength performance of the target batch of concrete.

[0068] In a specific embodiment of the present invention, the formula for analyzing the durability performance index of the target batch of concrete is: ,in, represents the durability performance index of the target batch of concrete, and They represent the weights of the durability performance evaluation corresponding to the set anti-penetration performance index and chemical corrosion resistance performance index, respectively. .

[0069] In a specific embodiment of the present invention, The setting value of is 0.5. The set value is 0.5. When calculating the durability performance index of the target batch of concrete, the anti-penetration performance index and the chemical corrosion resistance index are both very important. They ensure the durability of concrete from different angles. The anti-penetration performance index focuses on preventing the invasion of harmful liquids and is the basic guarantee of durability. The chemical corrosion resistance index focuses on resisting the damage of chemical substances to the internal structure of concrete and is a key evaluation indicator for specific chemical corrosion environments. In actual evaluation, it is necessary to comprehensively evaluate the durability of concrete by comprehensively considering these two indices based on the specific environment and use requirements of the concrete structure.

[0070] In a specific embodiment of the present invention, the specific process of evaluating whether the high strength performance of the target batch of concrete meets the standard is as follows: calculating the high strength performance of the target batch of concrete , ,in, , and They represent the weights of the set compressive strength performance index, flexural strength performance index and durability performance index corresponding to the high-strength performance compliance assessment. .

[0071] In a specific embodiment of the present invention, The setting value of is 0.35. The setting value of is 0.3. The set value is 0.35. When calculating the high-strength performance compliance of the target batch of concrete, the compressive strength performance index, flexural strength performance index and durability performance index are all extremely important. They play a key role in the evaluation of high-strength performance compliance from different aspects. Compressive strength is a reflection of the ability of concrete to withstand compressive loads and is the most basic strength indicator in structural design. For some bending members, such as beams, slabs, and road pavement structures, flexural strength is a key indicator. Durability is the ability of concrete to resist various environmental factors and maintain its stable performance during long-term use.

[0072] See also Figure 3 As shown, the high-strength performance standard of the target batch of concrete is compared with the high-strength performance standard of the set reference. If the high-strength performance standard of the target batch of concrete is greater than or equal to the high-strength performance standard of the set reference, it means that the high-strength performance of the target batch of concrete has met the standard. Otherwise, it means that the high-strength performance of the target batch of concrete has not met the standard.

[0073] The embodiments of the present invention improve the accuracy and comprehensiveness of the high-strength performance evaluation of concrete by comprehensively evaluating whether the high-strength performance of concrete meets the standards from multiple aspects such as compressive strength, flexural strength, anti-penetration performance and chemical corrosion resistance, and help to gain a deep insight into the intrinsic correlation and synergy between various performance indicators.

[0074] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A method for detecting and analyzing high strength properties of ultra-high performance concrete, characterized in that: The steps include: S1. Grouping of concrete specimen performance test: Make a target batch of concrete into several concrete specimens, divide the several concrete specimens into a compression test group, a flexural test group and a durability test group in equal proportion, and extract the width, height and length of the concrete specimens; S2. Concrete compressive strength performance analysis: The concrete specimens in the compressive test group are divided into a group with pressure applied in the same direction and a group with pressure applied in different directions in equal proportions. The contour images corresponding to each concrete specimen in the group with pressure applied in the same direction and the group with pressure applied in different directions are collected to analyze the compressive strength performance index of the target batch of concrete. ; S3. Analysis of concrete flexural strength performance: Conduct three-point bending tests on each concrete specimen in the flexural test group, extract the specimen span and maximum load at the moment of fracture of each concrete specimen in the flexural test group, and analyze the flexural strength performance index of the target batch of concrete ; S4. Analysis of concrete anti-penetration performance: The concrete specimens in the durability test group are divided into an anti-penetration performance group and an anti-chemical erosion group in equal proportion. The total amount of electricity passed by each concrete specimen in the anti-penetration performance group during each monitoring period is collected, and the anti-penetration performance index of the target batch of concrete specimens is analyzed. ; S5. Analysis of concrete anti-chemical erosion performance: Set different immersion times for each concrete specimen in the anti-chemical erosion group, collect test information of each concrete specimen in the anti-chemical erosion group after reaching the corresponding set immersion time, and analyze the anti-chemical erosion performance index of the target batch of concrete specimens ; Said The specific analysis process is as follows: extract the number of cracks on the surface, the length of each crack, and the maximum load at the moment of fracture in the compressive strength test from the test information of each concrete specimen in the chemical erosion resistance group after reaching the corresponding set immersion time, and calculate the surface change abnormality index of the concrete specimen in the chemical erosion resistance group respectively. and compressive strength variation anomaly index ; Calculate the chemical corrosion resistance index of the target batch of concrete specimens , ,in, and They represent the weights of the set surface change abnormality index and compressive strength change abnormality index corresponding to the chemical corrosion resistance performance evaluation. ; S6. Concrete high-strength performance evaluation: Analyze the durability performance index of the target batch of concrete, and evaluate whether the high-strength performance of the target batch of concrete meets the standard. If it does not meet the standard, feedback will be given immediately. If it meets the standard, it indicates that there is no problem with the high-strength performance of the target batch of concrete.

2. The method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 1, characterized in that: The specific process of analyzing the compressive strength performance index of the target batch of concrete is: The deformation contour is located from the contour images corresponding to each concrete specimen in the same-direction pressure application group and the different-direction pressure application group; The deformation contours corresponding to each concrete specimen in the same-direction pressure application group are overlapped and compared with the initial contours corresponding to the concrete specimens stored in the database to obtain the overlapping contour volume corresponding to each concrete specimen in the same-direction pressure application group, which is recorded as ,in, Indicates the number of the concrete specimen in the group under the same direction of pressure application. ; The initial contour volume is located from the initial contour corresponding to the concrete specimen and recorded as ; Calculation of deformation of concrete specimens in the group under unidirectional pressure , ,in, represents the number of concrete specimens in the group with the same direction pressure applied, Indicates the volume ratio of the overlapping contours used as reference. represents a natural constant; The deformation of the concrete specimens in the group with pressure applied in the same direction is calculated in the same way as the deformation of the concrete specimens in the group with pressure applied in the opposite direction. ; Calculate the compressive strength performance index of the target batch of concrete , ,in, and They represent the weights of the compressive strength performance evaluation corresponding to the set pressure in the same direction and pressure in different directions, .

3. A method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 2, characterized in that: The specific process of analyzing the flexural strength performance index of the target batch of concrete is as follows: The width and height of the concrete specimen are respectively and ; The specimen span and the maximum load at the moment of fracture of each concrete specimen in the flexural test group are recorded as and ,in, Indicates the number of the concrete specimen in the flexural test group. ; Calculate the flexural strength of each concrete specimen in the flexural test group , ; Calculate the flexural strength performance index of the target batch of concrete , ,in, represents the number of concrete specimens in the flexural test group, Indicates the standard flexural strength of concrete specimens.

4. The method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 1, characterized in that: The specific process of analyzing the anti-penetration performance index of the target batch of concrete specimens is as follows: With the monitoring time period as the horizontal axis and the total amount of electricity passed as the vertical axis, a deviation curve of the amount of electricity passed through each concrete specimen in the anti-penetration performance group is constructed, and the slope value is located from the curve as the growth rate of the amount of electricity passed through each concrete specimen in the anti-penetration performance group, which is marked as ,in, Indicates the number of the concrete specimen in the anti-penetration performance group. ; Calculate the anti-penetration performance index of the target batch of concrete specimens , ,in, Indicates the reference power growth rate. Indicates the number of concrete specimens in the anti-penetration performance group.

5. The method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 2, characterized in that: The test information includes the number of cracks appearing on the surface, the length of each crack and the maximum load at the moment of fracture in the compressive strength test.

6. The method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 1, characterized in that: The specific process of calculating the surface change anomaly index of the concrete specimens in the chemical erosion resistance group is as follows: The number of cracks that appear on the surface of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time is recorded as ,in, Indicates the number of the concrete specimen in the chemical corrosion resistance group. ; The maximum value is extracted from the lengths of the cracks appearing on the surface of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time, and recorded as ; Calculate the surface cracking degree of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , ,in, and They represent the number of cracks and length of cracks allowed respectively; From the surface cracking degrees of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time, the surface cracking degree after the longest immersion time is extracted and recorded as ; Calculation of surface variation anomaly index of concrete specimens in the chemical erosion resistance group , ,in, Indicates the surface cracking degree of the set reference, Indicates the number of concrete specimens in the chemical corrosion resistance group.

7. A method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 6, characterized in that: The specific process of calculating the abnormal index of compressive strength variation of the concrete specimens in the chemical erosion resistance group is as follows: The length of the concrete specimen is recorded as ; The maximum load at the moment of fracture in the compressive strength test of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time is recorded as ; Calculate the compressive strength of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , ; The initial compressive strength of the concrete specimen is extracted from the database and recorded as ; Calculate the compressive strength change rate of each concrete specimen in the chemical corrosion resistance group after reaching the corresponding set immersion time , ; The compressive strength deviation curve of the concrete specimens in the chemical erosion resistance group was constructed with the immersion time of the concrete specimens as the horizontal coordinate and the compressive strength change rate as the vertical coordinate, and the slope value was located from the curve as the compressive strength change growth rate of the concrete specimens in the chemical erosion resistance group, which was marked as ; Calculation of the abnormal index of compressive strength variation of concrete specimens in the chemical corrosion resistance group , ,in, Indicates the rate of increase in compressive strength change of the set reference.

8. The method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 1, characterized in that: The formula for analyzing the durability performance index of the target batch of concrete is: ,in, represents the durability performance index of the target batch of concrete, and They represent the weights of the durability performance evaluation corresponding to the set anti-penetration performance index and chemical corrosion resistance performance index, respectively. .

9. A method for detecting and analyzing high strength properties of ultra-high performance concrete according to claim 8, characterized in that: The specific process of evaluating whether the high strength performance of the target batch of concrete meets the standard is as follows: Calculate the high strength performance of the target batch of concrete , ,in, , and They represent the weights of the set compressive strength performance index, flexural strength performance index and durability performance index corresponding to the high-strength performance compliance assessment. ; The high-strength performance standard of the target batch of concrete is compared with the high-strength performance standard of the set reference. If the high-strength performance standard of the target batch of concrete is greater than or equal to the high-strength performance standard of the set reference, it means that the high-strength performance of the target batch of concrete has met the standard; otherwise, it means that the high-strength performance of the target batch of concrete has not met the standard.

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