A method, system and electronic device for evaluating the anti-penetration performance of cement-based materials

Ultrasonic propagation speed inside cement-based materials is measured through ultrasonic detection technology, and the correlation equation related to anti-invasion performance is established, which solves the problem of difficulty in accurately evaluating cement-based materials' anti-invasion performance in the prior art, and realizes accurate evaluation and rapid detection of different material compositions.

CN119198900BActive Publication Date: 2025-03-04SHANDONG UNIV
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Patent Information

Application Number
CN202411533298.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-03-04
Estimated Expiration
2044-10-31

AI Technical Summary

Technical Problem

It is difficult for the prior art to accurately evaluate the anti-invasion properties of cement-based materials of unknown components and proportions. Traditional methods rely on compressive strength prediction. As concrete materials are updated, the correlation between compressive strength and anti-invasion properties is reduced, resulting in a decrease in evaluation accuracy.

Method used

Ultrasonic detection technology is used to measure the propagation speed of ultrasonic waves inside the cement-based material, and establish the correlation equation between the ultrasonic wave propagation speed and the normalized penetration depth and the diameter of the pit, and then evaluate the anti-invasion performance of the cement-based material to be evaluated.

Benefits of technology

Accurate intrusion resistance evaluation of cement-based materials of different material compositions and different compressive strengths is achieved, and cement-based materials of unknown components can be quickly and non-destructively evaluated, improving the accuracy and repeatability of the test.

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Abstract

The present invention relates to an evaluation method, system and electronic equipment for the anti-penetration performance of cement-based materials, and belongs to the field of computational materials science and technology. The method comprises: performing ultrasonic detection on a plurality of cement-based materials, respectively obtaining the propagation speed of ultrasonic waves in different cement-based materials; detecting the normalized penetration depth and the opening diameter of cement-based materials; establishing a correlation equation between the ultrasonic propagation speed and the normalized penetration depth / opening diameter; substituting the ultrasonic propagation speed of the cement-based material to be evaluated into the correlation equation, and calculating its normalized penetration depth and opening diameter. The characterization system established by the present invention can accurately evaluate the anti-penetration performance of cement-based materials with different material compositions and different compressive strengths. Compared with traditional penetration experiments, the detection method can quickly and accurately evaluate the anti-penetration performance of cement-based materials of unknown components, and since it basically does not damage the test blocks, it can also greatly improve the accuracy and repeatability of the test.
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Description

Technical Field

[0001] The invention belongs to the field of computational material science and technology, and relates to an evaluation method, system and electronic equipment for the anti-penetration performance of cement-based materials. Background Art

[0002] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention, and should not necessarily be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] Ultrasonic pulse velocity (UPV) technology has been widely used as a non-destructive testing technology. It can accurately and non-destructively detect, locate, evaluate and diagnose various defects in homogeneous workpieces (such as cracks, inclusions, pores, etc. in welds). Due to its simple detection process, fast measurement speed and high accuracy, UPV technology has also been used in recent years to characterize the internal structure of cementitious composite materials (such as crack distribution) and predict their process performance (such as the length of setting time).

[0004] Cement-based materials are the most common building materials in protective engineering and are widely used in the construction of various engineering structures such as buildings, bridges, tunnels, ports, airports, and energy storage facilities. Cement-based materials with high compressive strength also have strong anti-penetration performance. In addition, the anti-penetration performance of materials is mainly studied through light gas gun experiments. A crater is punched on the test target, and the depth of the crater is the penetration depth. The penetration depth (or normalized penetration depth) and the crater diameter are then used to characterize the anti-penetration performance. A large penetration depth / large crater diameter indicates that the material has weak anti-penetration performance. This process is time-consuming and labor-intensive, so the compressive strength is currently used to predict the anti-penetration performance of the material. However, with the continuous updating of concrete materials, the compressive strength gradually increases, and its correlation with anti-penetration performance gradually decreases, resulting in the accuracy of predicting anti-penetration performance by compressive strength becoming increasingly lower. A Chinese patent application numbered 2024109309245 discloses a method for evaluating the performance of cement-based materials against non-rigid projectile penetration. However, the internal components and proportions of the cement-based materials need to be known in advance in order to calculate the effective hardness. This method cannot be used to evaluate cement-based materials with unknown components and proportions. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a method, system and electronic device for evaluating the anti-penetration performance of cement-based materials. The anti-penetration performance of cement-based materials can be evaluated non-destructively and quickly using ultrasonic detection results.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] A method for evaluating the anti-penetration performance of cement-based materials comprises the following steps:

[0008] S1. Perform ultrasonic testing on a variety of cement-based materials to obtain the propagation speed of ultrasonic waves in different cement-based materials;

[0009] S2, detecting the normalized penetration depth and the pit diameter of the cement-based materials in S1, and the detection method of different cement-based materials is the same;

[0010] S3, establishing a correlation equation between ultrasonic propagation velocity and normalized penetration depth, and establishing a correlation equation between ultrasonic propagation velocity and pit diameter;

[0011] S4. Perform ultrasonic testing on the cement-based material to be evaluated, substitute the measured ultrasonic propagation velocity into the correlation equation in S3, calculate the normalized penetration depth and pit diameter of the cement-based material to be evaluated, so as to evaluate its anti-penetration performance.

[0012] In a second aspect, a cement-based material anti-penetration performance evaluation system for implementing the above-mentioned cement-based material anti-penetration performance evaluation method comprises:

[0013] The first calculation module is used to calculate the propagation speed of ultrasonic waves inside different cement-based materials;

[0014] The second calculation module is used to calculate the normalized penetration depth and the pit diameter of the cement-based material;

[0015] The third calculation module is used to obtain the correlation equation between the ultrasonic wave propagation velocity and the normalized penetration depth and the correlation equation between the ultrasonic wave propagation velocity and the pit diameter;

[0016] A fourth calculation module for outputting the normalized penetration depth and the pit diameter of the cement-based material to be evaluated obtained based on the evaluation method for the anti-penetration performance of the cement-based material described above;

[0017] The fifth calculation module is used to evaluate the anti-penetration performance of the cement-based material to be evaluated according to the normalized penetration depth and the pit diameter output by the fourth calculation module.

[0018] In a third aspect, an electronic device comprises: a memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps in the above-mentioned method for evaluating the anti-penetration performance of cement-based materials.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention proposes a non-destructive evaluation method for the anti-penetration performance of cement-based materials based on ultrasonic velocity measurement. The established characterization system can accurately evaluate the anti-penetration performance (including normalized penetration depth and pit diameter) of cement-based materials with different material compositions and different compressive strengths. Compared with traditional penetration experiments, the detection method used in the present invention can quickly and accurately evaluate the anti-penetration performance of cement-based materials with unknown components, and since it basically does not damage the test block, it can also greatly improve the accuracy and repeatability of the test.

[0021] 2. Due to the particularity of the cement-based material forming process, a large number of defects such as pores and cracks will be formed during the mixing and pouring process, which greatly affects the working performance and anti-penetration performance of the cement-based material. These defects will also affect the propagation speed of ultrasonic waves inside the concrete. Using UPV to detect cement-based materials can also reflect the impact of the pores, cavities and cracks inside them on the anti-penetration performance, and screen out cement-based materials with good homogeneity, low porosity and better anti-penetration performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 Schematic diagram of the UPV testing device in Example 1 of the present invention.

[0024] Figure 2 Schematic diagram of the relationship between ultrasonic velocity and normalized penetration depth in Example 1 of the present invention.

[0025] Figure 3 Schematic diagram of the relationship between ultrasonic velocity and pit diameter in Example 1 of the present invention.

[0026] Figure 4 Schematic diagram of the relationship between compressive strength and normalized penetration depth in Comparative Example 1 of the present invention.

[0027] Among them, 1. transmitting sensor; 2. receiving sensor; 3. pulse transmitter; 4. test block; 5. receiver amplifier; 6. time measurement circuit; 7. time display unit. DETAILED DESCRIPTION

[0028] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] A method for evaluating the anti-penetration performance of cement-based materials comprises the following steps:

[0031] S1. Perform ultrasonic testing on a variety of cement-based materials to obtain the propagation speed of ultrasonic waves in different cement-based materials;

[0032] S2, detecting the normalized penetration depth and the pit diameter of the cement-based materials in S1, and the detection method of different cement-based materials is the same;

[0033] S3, establishing a correlation equation between ultrasonic propagation velocity and normalized penetration depth, and establishing a correlation equation between ultrasonic propagation velocity and pit diameter;

[0034] S4. Perform ultrasonic testing on the cement-based material to be evaluated, substitute the measured ultrasonic propagation velocity into the correlation equation in S3, calculate the normalized penetration depth and pit diameter of the cement-based material to be evaluated, so as to evaluate its anti-penetration performance.

[0035] Optionally, in S1, cement-based materials include cement paste materials, cement mortar materials, ordinary concrete materials, high-ductility cement-based composite materials and ultra-high performance concrete materials. Since this method is to non-destructively detect materials of unknown composition, a variety of cement-based materials can participate in the detection.

[0036] Optionally, in S1, the frequency of ultrasonic detection is 40~70kHz, and technicians can flexibly adjust it to obtain high detection sensitivity.

[0037] Optionally, in S1, during the ultrasonic testing process, at least two samples with different ultrasonic propagation velocities are taken for each material, so that the fitted curve relationship conforms to the performance change trend of the material.

[0038] Optionally, in S1, during the ultrasonic detection process, the ultrasonic transmitting position and the ultrasonic receiving position are respectively located on the opposite non-casting surfaces of the cement-based material test block, and the line connecting the ultrasonic transmitting position and the ultrasonic receiving position is perpendicular to the non-casting surface, so that the distance between the ultrasonic transmitting position and the ultrasonic receiving position is the shortest and easy to measure, so that the propagation speed of the ultrasonic wave can be accurately obtained.

[0039] Optionally, in S1, the wavelength of the ultrasonic wave (i.e., the longitudinal stress wave) is smaller than the side length of the cross section of the ultrasonic test specimen, or is close to the side length of the cross section of the ultrasonic test specimen, so as to prevent interference from interface reflection and attenuation caused by diffraction.

[0040] Optionally, in S1, the propagation velocity is calculated as:

[0041] ;in, is the propagation speed of ultrasound in cement-based materials; L is the length of the test piece; T is the time it takes for ultrasound to pass through the length L of the test piece.

[0042] Optionally, in S1, during the ultrasonic testing process, an impedance coupling medium is applied to the testing position to minimize interference at the interface of the testing position and improve the sensitivity of the testing.

[0043] Optionally, in S2, the detection method includes: preparing a cement-based material as a target body, using a ballistic smoothbore gun to launch an ASSAB XW-42 high-strength alloy steel projectile, the projectile being a conical warhead with a diameter of 6 to 10 mm, and a target impact speed of 400 to 450 m / s; and the launch direction is parallel to the ballistic thickness direction of the target body.

[0044] Optionally, in S2, the normalized penetration depth is a normalized penetration depth to eliminate the influence of the target velocity, so as to accurately evaluate the inherent properties of the cement-based material.

[0045] Optional, in S3, the normalized penetration depth Y 侵彻深度 With ultrasonic speed X UPV The relationship is:

[0046] , ;

[0047] Pit diameter Y 开坑直径 With ultrasonic speed X UPV The relationship is:

[0048] , .

[0049] Based on this, the ultrasonic propagation velocity (ultrasonic velocity) in the cement-based material to be evaluated is detected, and it is substituted into the above-mentioned correlation equation to obtain the normalized penetration depth and pit diameter of the cement-based material to be evaluated, thereby evaluating its anti-penetration performance.

[0050] A cement-based material normalized penetration depth evaluation system for implementing the above-mentioned cement-based material normalized penetration depth evaluation method comprises:

[0051] The first calculation module is used to calculate the propagation speed of ultrasonic waves inside different cement-based materials;

[0052] The second calculation module is used to calculate the normalized penetration depth and the pit diameter of the cement-based material;

[0053] The third calculation module is used to obtain the correlation equation between the ultrasonic wave propagation velocity and the normalized penetration depth and the correlation equation between the ultrasonic wave propagation velocity and the pit diameter;

[0054] The fourth calculation module is used to output the normalized penetration depth and pit diameter of the cement-based material to be evaluated obtained based on the above-mentioned evaluation method for the anti-penetration performance of cement-based materials.

[0055] The fifth calculation module is used to evaluate the anti-penetration performance of the cement-based material to be evaluated according to the normalized penetration depth and the pit diameter output by the fourth calculation module.

[0056] An electronic device comprises: a memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps in the above-mentioned method for evaluating the normalized penetration depth of cement-based materials.

[0057] Example 1

[0058] Cement-based materials, including cement paste materials, cement mortar materials, concrete materials, high-ductility cement-based composite materials and ultra-high performance concrete, are prepared by adopting different component ratios.

[0059] The three cement paste materials are numbered CP-1~3, and their preparation raw materials do not contain fine aggregate, coarse aggregate and fiber.

[0060] The six cement mortar materials are numbered CM-1~6, and their preparation raw materials do not contain coarse aggregate and fiber phase.

[0061] The seven types of concrete materials are numbered CC-1 to CC-7, and their preparation raw materials include cement mortar, coarse aggregate, with or without fiber.

[0062] The two high-ductility cement-based composite materials are numbered ECC-1 and ECC-2 respectively. Their preparation raw materials include water, silica fume, fly ash, fiber, water reducer and river sand. Among them, river sand is fine aggregate and is a component of cement mortar; and coarse aggregate is not included.

[0063] The four types of ultra-high performance concrete are numbered UHPC-1~4, and their preparation raw materials include cement mortar, coarse aggregate and fiber.

[0064] In this embodiment, the method for evaluating the anti-penetration performance of cement-based materials includes the following steps:

[0065] S1, UPV test.

[0066] The cement-based material is poured into a 100×100×100mm 3 The cubic test block was polished and cleaned after curing, and the UPV test was carried out at a set position on its non-casting surface.

[0067] The UPV test position includes an ultrasonic transmitting position and an ultrasonic receiving position, and the ultrasonic transmitting position and the ultrasonic receiving position are respectively located on the opposite non-casting surfaces of the cubic test block of the cement-based material, and during the same test process, the line connecting the ultrasonic transmitting position and the ultrasonic receiving position is perpendicular to the non-casting surface.

[0068] Test equipment such as Figure 1 As shown: the transmitting sensor 1 and the receiving sensor 2 are respectively in contact with the opposite sides of the non-casting surface of the test block 4, the pulse transmitter 3 is connected to the transmitting sensor 1, and is used to transmit the ultrasonic signal for UPV test, the receiver amplifier 5 is connected to the receiving sensor 2, and is used to process the ultrasonic signal received by the receiving sensor 2, the pulse transmitter 3 and the receiver amplifier 5 are respectively connected to the time measurement circuit 6, and the time measurement circuit 6 is connected to the time display unit 7, and is used to obtain the time taken by the ultrasonic wave passing through the inside of the test piece. During the test, the transmitting sensor 1 and the receiving sensor 2 with a size of φ50*46mm are selected, and the nominal frequency of the pulse transmitter 3 is adjusted to 54 kHz and balanced and zeroed; at the beginning of the test, the transmitting sensor 1 and the receiving sensor 2 are respectively placed on the opposite sides of the non-casting surface of the test block 4, so that the axis positions of the two sensors correspond to each other, and vaseline is applied as an impedance coupling medium at the contact position between the transmitting sensor 1 and the receiving sensor 2 and the surface of the test block to ensure that the two are in full contact; three positions separated by a set distance are selected on the side of each experimental test block 4 for measurement, and three test blocks are tested for each ratio to reduce accidental errors.

[0069] During the test, the wavelength of the ultrasonic wave (i.e. the longitudinal stress wave) should be smaller than the maximum length dimension of the cross section of the ultrasonic test specimen, which can meet the requirements of most cement-based composite materials; in addition, the wavelength containing bauxite aggregate can be slightly larger than the maximum length dimension of the cross section of the specimen.

[0070] After obtaining the test results, the propagation speed of ultrasound in different cement-based materials is calculated as the ultrasonic speed, and the results are summarized in Table 1. The calculation method of the propagation speed is:

[0071] ;in, is the propagation speed of ultrasound in cement-based materials; L is the length of the test piece; T is the time it takes for ultrasound to pass through the length L of the test piece.

[0072] S2. Anti-penetration test.

[0073] The cement-based material is prepared as a target with a target size of 300×170×150mm 3 (150mm is the thickness along the ballistic direction).

[0074] A ballistic smoothbore gun was used to fire the ASSAB XW-42 high-strength alloy steel projectile, which had a conical warhead with a diameter of 8 mm and an impact velocity of 420 m / s. The firing direction was parallel to the target along the thickness direction of the trajectory, and the penetration pit was located at the center of the target plane. During the process, a laser speed measurement system was used to measure the projectile velocity before and after firing, and a high-speed camera was used to monitor whether the trajectory direction was perpendicular to the target, in order to eliminate atypical test results caused by firing angle deviation.

[0075] After the anti-penetration test, the degree of damage to the cement-based material target under the action of high-speed projectiles was measured, including the normalized penetration depth (i.e., the distance from the projectile penetrating the target to the deepest point) and the crater diameter (the diameter of the equivalent circle with the same area as the crater). The normalized penetration depth was calculated through the normalized penetration depth (normalized penetration depth = normalized penetration depth / target impact speed), and the results are summarized in Table 1.

[0076] Table 1 Test results of cement-based materials

[0077]

[0078] S3. Establish the correlation between propagation speed and anti-penetration performance.

[0079] According to the ultrasonic velocity and normalized penetration depth data other than CC-8 in Table 1, the following are obtained: Figure 2 As shown in the relationship diagram, it can be seen that there is an obvious correlation between the propagation velocity and the normalized penetration depth. The anti-penetration performance can be evaluated based on the propagation velocity. The normalized penetration depth Y 侵彻深度 With ultrasonic speed X UPV The relationship is:

[0080] , .

[0081] According to the ultrasonic velocity and pit diameter data other than CC-8 in Table 1, the following is obtained: Figure 3 As shown in the relationship diagram, it can be seen that there is an obvious correlation between the propagation speed and the pit diameter. The anti-penetration performance can be evaluated based on the propagation speed. The pit diameter Y 开坑直径 With ultrasonic speed X UPV The relationship is:

[0082] , .

[0083] S4. Evaluation of the anti-penetration performance of cement-based materials with unknown properties.

[0084] A cement-based material with unknown specific component ratio and anti-penetration performance is selected, numbered CC-8, and the ultrasonic velocity is obtained as 7126.0 m / s according to the method of Example 1. This ultrasonic velocity is substituted into the calculation method of the normalized penetration depth and the pit diameter in Example 1 to evaluate the normalized penetration depth (Y 侵彻深度 ) is 19.56 mm; the pit diameter (Y 开坑直径 ) is 49.35mm.

[0085] According to the method of Example 1, the anti-penetration performance of the cement-based material in this embodiment is actually measured, and the actual normalized penetration depth is measured to be 20.2 mm, and the error of the evaluation data relative to the measured data is: |100%-19.56 / 20.2|=3.1%; the actual pit diameter is measured to be 49.2 mm, and the error of the evaluation data relative to the measured data is: |100%-49.35 / 49.2|=3.0%; It shows that the normalized penetration depth Y obtained by the evaluation 侵彻深度 and the pit diameter Y 开坑直径 The data is in good agreement with the actual measured data, that is, the anti-penetration performance evaluation method obtained in Example 1 can be applied to cement-based composite materials with unknown performance.

[0086] Example 2

[0087] A cement-based material anti-penetration performance evaluation system for implementing the cement-based material anti-penetration performance evaluation method in Example 1, comprising:

[0088] The first calculation module is used to calculate the propagation speed of ultrasonic waves inside different cement-based materials;

[0089] The second calculation module is used to calculate the normalized penetration depth and the pit diameter of the cement-based material;

[0090] The third calculation module is used to obtain the correlation equation between the ultrasonic wave propagation velocity and the normalized penetration depth and the correlation equation between the ultrasonic wave propagation velocity and the pit diameter.

[0091] A fourth calculation module, used to output the normalized penetration depth and pit diameter of other cement-based materials to be evaluated obtained based on the evaluation method for the anti-penetration performance of cement-based materials in Example 1;

[0092] The fifth calculation module is used to evaluate the anti-penetration performance of the cement-based material to be evaluated according to the normalized penetration depth and the pit diameter output by the fourth calculation module.

[0093] Example 3

[0094] An electronic device comprises: a memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps in the method for evaluating the anti-penetration performance of cement-based materials described in Example 1.

[0095] Comparative Example 1

[0096] The compressive strength of each cement-based material in Example 1 was tested separately, and the results are summarized in Table 1.

[0097] The compressive strength and normalized penetration depth data in Table 1 are processed to obtain Figure 4 The relationship between compressive strength and normalized penetration depth is shown in the figure. It can be seen that the dispersion degree of the scattered points in the figure is significantly higher than Figure 2 , it is difficult to fit a fitting formula with high accuracy. Similarly, it is also difficult to fit a fitting formula with high accuracy by processing the compressive strength and pit diameter in Table 1. Therefore, the correlation between compressive strength and the anti-penetration performance of cement-based materials is poor and difficult to accurately evaluate.

[0098] The technical solution of the present invention can accurately evaluate the anti-penetration performance of various types of cement-based materials, and the normalized penetration depth Y obtained by fitting 侵彻深度 With ultrasonic speed X UPV The relational formula R 2 =0.88, the diameter of the opening obtained by fitting is Y 开坑直径 With ultrasonic speed X UPV The relational formula R 2 =0.80, with high accuracy. Compared with the method of evaluating anti-penetration performance based on effective hardness in the background art, it does not require the detailed composition and proportion information of cement-based materials to be known in advance, and can reflect the influence of internal structural defects on anti-penetration performance, which is highly practical.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for evaluating the anti-penetration performance of cement-based materials, characterized in that: The following steps are involved: S1. Perform ultrasonic testing on a variety of cement-based materials to obtain the propagation speed of ultrasonic waves in different cement-based materials; S2, detecting the normalized penetration depth and the pit diameter of the cement-based materials in S1, and the detection method of different cement-based materials is the same; S3, establishing a correlation equation between ultrasonic propagation velocity and normalized penetration depth, and establishing a correlation equation between ultrasonic propagation velocity and pit diameter; S4, performing ultrasonic testing on the cement-based material to be evaluated, substituting the measured ultrasonic propagation velocity into the correlation equation in S3, calculating the normalized penetration depth and the pit diameter of the cement-based material to be evaluated, so as to evaluate its anti-penetration performance; In S1, cement-based materials include cement paste materials, cement mortar materials, ordinary concrete materials, high-ductility cement-based composite materials and ultra-high performance concrete materials; In S3, the normalized penetration depth Y 侵彻深度 With ultrasonic speed X UPV The relationship is: , ; Pit diameter Y 开坑直径 With ultrasonic speed X UPV The relationship is: , 。 2. The method for evaluating the anti-penetration performance of cement-based materials according to claim 1, characterized in that: In S1, during the ultrasonic testing process, the ultrasonic emission position and the ultrasonic receiving position are respectively located on opposite non-casting surfaces of the cement-based material test block, and the line connecting the ultrasonic emission position and the ultrasonic receiving position is perpendicular to the non-casting surface.

3. The method for evaluating the anti-penetration performance of cement-based materials according to claim 1, characterized in that: In S1, the frequency of ultrasonic detection is 40~70kHz.

4. The method for evaluating the anti-penetration performance of cement-based materials according to claim 1, characterized in that: In S1, during the ultrasonic testing process, an impedance coupling medium is applied to the testing location.

5. The method for evaluating the anti-penetration performance of cement-based materials according to claim 1, characterized in that: In S1, at least two samples with different ultrasonic propagation velocities are taken for each material.

6. The method for evaluating the anti-penetration performance of cement-based materials according to claim 1, characterized in that: In S2, the detection method includes: preparing a cement-based material as a target body, using a ballistic smoothbore gun to launch an ASSAB XW-42 high-strength alloy steel projectile, the projectile is a conical warhead with a diameter of 6~10mm, and the target impact speed is 400~450m / s; the launch direction is parallel to the ballistic thickness direction of the target body.

7. A cement-based material anti-penetration performance evaluation system for implementing the cement-based material anti-penetration performance evaluation method as claimed in any one of claims 1 to 6, characterized in that: include: The first calculation module is used to calculate the propagation speed of ultrasonic waves inside different cement-based materials; The second calculation module is used to calculate the normalized penetration depth and the pit diameter of the cement-based material; The third calculation module is used to obtain the correlation equation between the ultrasonic wave propagation velocity and the normalized penetration depth and the correlation equation between the ultrasonic wave propagation velocity and the pit diameter; A fourth calculation module, used for outputting the normalized penetration depth and the pit diameter of the cement-based material to be evaluated obtained based on the evaluation method of the anti-penetration performance of the cement-based material; The fifth calculation module is used to evaluate the anti-penetration performance of the cement-based material to be evaluated according to the normalized penetration depth and the pit diameter output by the fourth calculation module.

8. An electronic device, characterized in that: include: A memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps in the method for evaluating the anti-penetration performance of cement-based materials as described in any one of claims 1-6.