Concrete material design and production accuracy evaluation method, device and equipment and storage medium

Abstract

The invention provides a concrete material design and production accuracy evaluation method and device, equipment and a storage medium. Relates to the technical field of building materials. The method comprises the following steps: acquiring physical and mechanical property indexes of a test piece; calculating a test average value of the physical and mechanical property indexes, and calculating a design variable coefficient according to the design values of the physical and mechanical property indexes; counting a standard deviation according to the test average value of the physical and mechanical property indexes and the test value of the physical and mechanical property indexes, and calculating a production variable coefficient; calculating a production comprehensive variable coefficient according to the design variable coefficient and the production variable coefficient; and evaluating the concrete material design and production accuracy according to the production comprehensive variable coefficient. According to the method, the intelligence and precision of industrial application of the concrete material can be improved, and the industrial level upgrading of concrete material production is promoted.

Description

Technical Field

[0001] The present application relates to the technical field of building materials, and in particular to a method, device, equipment and storage medium for evaluating the design and production accuracy of concrete materials. Background Art

[0002] Cement concrete is widely used worldwide. Concrete will continue to be humanity's most widely used inorganic non-metallic building material for a long time to come. Furthermore, the application of concrete will expand from civil engineering, transportation engineering, underground space engineering, and marine engineering to space engineering. The development of the concrete industry determines and influences the further advancement of human society's industrialization. Technological advancements in the concrete industry are of great significance to environmental protection, resource conservation, carbon neutrality, and the expansion of living space. Currently, the comprehensive design and production precision of concrete materials have received little attention within the industry, resulting in insufficient intelligence and precision in the application of concrete materials, which cannot meet the needs of the overall industrialization of human society.

[0003] The accuracy and stability of concrete material performance design are crucial to the effectiveness of concrete applications. Concrete is a mixture of water, cementitious materials, sand, stone, mineral admixtures, and additives, and its raw materials are complex and multi-component. Mix design, raw material variations, and construction techniques all affect the performance of hardened concrete, particularly the key design parameters of 28-day compressive strength and apparent density. Currently, the basic assumption in structural engineering design is that the coefficient of variation of concrete's 28-day compressive strength is less than 15%. However, effective methods for evaluating the comprehensive coefficient of variation of concrete materials are lacking in actual engineering. In reality, due to design errors, construction constraints, and raw material fluctuations, the coefficient of variation of concrete's 28-day compressive strength is very likely to exceed 15%. Once substandard concrete is poured and vibrated, it can require subsequent demolition or reinforcement, resulting in significant resource and economic losses. More seriously, it may result in insufficient concrete strength upon demolding, leading to collapse and potentially causing safety accidents. Furthermore, a coefficient of variation of concrete's 28-day compressive strength exceeding 15% can severely distort reliability-based structural design results, significantly reducing the safety of reinforced concrete structures.

[0004] In recent years, the uniformity evaluation of engineering materials has gradually attracted attention. For example, the invention patent application with application number: 202010689731.7 provides a method for testing the consistency of product performance based on the normal distribution. This consistency test method is different from the classical consistency test method. It does not require the construction of statistics. Instead, it defines the consistency measure based on the concept and mathematical meaning of the probability density function, avoiding the difficulty of constructing sufficient statistics. The invention patent application with application number: 202310518636.4 discloses a method for detecting the uniformity of concrete mixing. By performing data processing on the target mixing image, the efficiency of detecting the uniformity of concrete mixing is improved. It is mainly used for detecting the uniformity of concrete mixing. However, for concrete materials, there is a lack of a concrete material design and production accuracy evaluation method based on statistical theory, and it is impossible to evaluate the comprehensive coefficient of variation of concrete material design and production, which seriously limits the intelligence and precision of concrete material applications, resulting in the inability to further improve the industrialization level of concrete material production. Summary of the Invention

[0005] This application provides a method, device, equipment, and storage medium for evaluating the accuracy of concrete material design and production. Based on the coefficient of variation of key concrete material performance indicators, a comprehensive coefficient of variation is proposed to effectively evaluate the accuracy of concrete material design and production. This method is highly scientific, offers concise analysis, and provides effective evaluation results, and is expected to be widely used in the future.

[0006] In a first aspect, the present application provides a method for evaluating the accuracy of concrete material design and production, comprising:

[0007] Obtain the physical and mechanical properties of the specimen;

[0008] Calculating the test average value of the physical and mechanical performance indicators, and calculating the design variation coefficient based on the design value of the physical and mechanical performance indicators;

[0009] Calculate the production variation coefficient based on the test average value of the physical and mechanical performance indicators and the statistical standard deviation of the test values ​​of the physical and mechanical performance indicators;

[0010] Calculate the comprehensive production variation coefficient based on the design variation coefficient and the production variation coefficient;

[0011] The design and production accuracy of concrete materials are evaluated based on the comprehensive production variation coefficient.

[0012] In a possible design, the design variation coefficient is calculated according to the design values ​​of the physical and mechanical performance indicators using the following formula:

[0013]

[0014] Where V d represents the design coefficient of variation, D i represents the design value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0015] In a possible design, the production variation coefficient is calculated by the following formula based on the test average value of the physical and mechanical performance index and the statistical standard deviation of the test value of the physical and mechanical performance index:

[0016]

[0017] Where V m Indicates the production coefficient of variation, SD i It represents the statistical standard deviation of the test value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0018] In one possible design, the production comprehensive coefficient of variation is calculated using the following formula based on the design coefficient of variation and the production coefficient of variation:

[0019]

[0020] Where V C Indicates the comprehensive coefficient of variation of production, V d represents the design coefficient of variation, V m represents the coefficient of variation of production.

[0021] In a possible design, the concrete material design and production accuracy is evaluated based on the comprehensive production variation coefficient, including:

[0022] If V C ≤0.03, the evaluation result of the concrete material design and production accuracy is determined to be excellent;

[0023] If 0.03<V C ≤0.05, the evaluation result of the concrete material design and production accuracy is determined to be good;

[0024] If 0.05<V C If the value is ≤0.10, the evaluation result of the concrete material design and production accuracy is determined to be medium;

[0025] If 0.10<V C ≤0.15, the evaluation result of the concrete material design and production accuracy is determined to be qualified;

[0026] If 0.15<V C , then the evaluation result of the concrete material design and production accuracy is determined to be unqualified;

[0027] Where V C It represents the comprehensive coefficient of variation of production.

[0028] In a possible design, the physical and mechanical performance indicators include one or a combination of a compressive strength performance indicator, a flexural strength performance indicator, and a saturated volume density performance indicator.

[0029] In one possible design, the physical and mechanical performance indicators are selected as a single item or multiple items. When multiple physical and mechanical performance indicators are selected, the design and production accuracy of the concrete material are evaluated based on the production comprehensive variation coefficient calculated corresponding to each physical and mechanical performance indicator, and evaluation results under different physical and mechanical performance indicators are obtained.

[0030] In a second aspect, the present application provides a device for evaluating the accuracy of concrete material design and production, the device comprising:

[0031] A performance index acquisition module is configured to obtain physical and mechanical performance indicators of the test piece;

[0032] A first coefficient calculation module is configured to calculate a test average value of the physical and mechanical performance index, and calculate a design variation coefficient based on a design value of the physical and mechanical performance index;

[0033] A second coefficient calculation module is configured to calculate a production variation coefficient based on a test average value of the physical and mechanical performance index and a statistical standard deviation of the test value of the physical and mechanical performance index;

[0034] A third coefficient calculation module is configured to calculate a comprehensive production variation coefficient based on the design variation coefficient and the production variation coefficient;

[0035] The evaluation module is configured to evaluate the design and production accuracy of concrete materials based on the comprehensive production variation coefficient.

[0036] In a third aspect, an embodiment of the present application provides an electronic device, comprising: at least one processor and a memory; the memory storing computer-executable instructions; the at least one processor executing the computer-executable instructions stored in the memory, so that the at least one processor performs the concrete material design and production accuracy evaluation method described in the first aspect and various possible designs of the first aspect.

[0037] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer-executable instructions stored therein. When a processor executes the computer-executable instructions, the method for evaluating the design and production accuracy of concrete materials as described in the first aspect and various possible designs of the first aspect is implemented.

[0038] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program. When the computer program is executed by a processor, it implements the concrete material design and production accuracy evaluation method as described in the first aspect and various possible designs of the first aspect.

[0039] The concrete material design and production accuracy evaluation method, device, equipment, and storage medium provided in this application have at least the following beneficial effects:

[0040] 1) The definition of comprehensive coefficient of variation was proposed for the first time, and a statistical calculation formula was established. By comprehensively considering the design coefficient of variation and the production coefficient of variation, the accuracy of concrete material design and production can be effectively evaluated.

[0041] 2) Without changing the existing industrial design and production process of concrete materials, the evaluation method is simple and fast, and can provide a relatively accurate and rapid evaluation of the accuracy of the design and production of large quantities of multiple batches of fresh concrete materials;

[0042] 3) The concrete material design and production accuracy evaluation method based on the comprehensive coefficient of variation is widely used in the construction field. The method is simple to operate, scientific and effective, has low equipment requirements, and is suitable for large-scale industrial production of concrete materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0044] Figure 1 A flowchart of a method for evaluating the accuracy of concrete material design and production provided in an embodiment of the present application;

[0045] Figure 2 A flowchart for evaluating the design and production accuracy of concrete materials provided in an embodiment of the present application;

[0046] Figure 3 This is a structural diagram of the concrete material design and production accuracy evaluation device provided in an embodiment of the present application.

[0047] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0049] In the technical solution of this application, the collection, storage, use, processing, transmission, provision and disclosure of information such as financial data or user data involved comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0050] It should be noted that in the embodiments of the present application, certain software, components, models and other existing solutions in the industry may be mentioned. They should be regarded as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of the present application, but it does not mean that the applicant has or will necessarily use the solution.

[0051] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0052] Based on this, the embodiment of the present application provides a method for evaluating the design and production accuracy of concrete materials, which aims to define the design variation coefficient and the production variation coefficient, use standard methods to determine the actual value of concrete material performance, and then calculate the design and production comprehensive variation coefficient to reflect the comprehensive accuracy level of concrete material design and production, thereby improving the intelligence and precision of concrete material industrial applications and promoting the upgrading of the industrialization level of concrete material production. Figure 1 , which is a flow chart of a method for evaluating the accuracy of concrete material design and production provided by an embodiment of the present application, the method for evaluating the accuracy of concrete material design and production includes the following steps S100 - S500 .

[0053] S100: Obtain the physical and mechanical performance indicators of the specimen.

[0054] The specimens mentioned in this article are specimens for performance testing, which can be obtained by sampling from the concrete material to be evaluated. The physical and mechanical performance index is an index that can characterize the physical and mechanical properties of the concrete material to be evaluated. In step S100, the physical and mechanical performance index obtained includes all test values ​​of the performance index. For example, the physical and mechanical performance index of the i-th item is represented by t i , then the physical and mechanical performance index of the specimen can be expressed as t i ={ti1 ,t i2 ,...t in}, where t i1 , t i2 and t in They respectively represent the first, second and nth test values ​​of the i-th physical and mechanical performance index.

[0055] In an exemplary embodiment, the physical and mechanical performance indicators of the specimen can be obtained by:

[0056] The number of specimens used for each sampling performance test shall be greater than or equal to 20; sampling shall be conducted at least once for every 100 plates of concrete with the same mix ratio; if the number of plates of concrete with the same mix ratio cannot reach 100 per work shift, it shall be counted as 100 plates, and the physical and mechanical performance index t of the corresponding specimen shall be measured according to the standard specification. i , record and store in a set format (such as table form) in the database.

[0057] The i-th physical and mechanical performance index t measured by the above method i , where the first, second and nth test values ​​of the i-th physical and mechanical performance index can be the test values ​​of the first, second and n-th specimens, and the test value of each specimen can be the average of the test values ​​obtained after multiple tests and after outlier processing (for example, removing the maximum and minimum values).

[0058] In step S100 , the physical and mechanical performance indicators of the test piece can be directly input by the user, or directly retrieved from a database storing the corresponding physical and mechanical performance indicators, so as to obtain basic data that can be used for subsequent processing steps.

[0059] S200: Calculate the test average value of the physical and mechanical performance indicators, and calculate the design variation coefficient based on the design value of the physical and mechanical performance indicators.

[0060] The design performance coefficient of variation proposed in this application is the ratio of the absolute difference between the design value and the test average to the design value, reflecting the design accuracy level of the concrete material. In some embodiments, the design coefficient of variation can be calculated using the following formula (1):

[0061]

[0062] Where V d represents the design coefficient of variation, D i represents the design value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0063] S300: Calculate the production variation coefficient based on the test average value of the physical and mechanical performance indicators and the statistical standard deviation of the test values ​​of the physical and mechanical performance indicators.

[0064] The production variation coefficient proposed in this application is the ratio of the statistical standard deviation of the test value to the test mean value, which reflects the production accuracy level of the concrete material. In some embodiments, the production variation coefficient can be calculated by the following formula (2):

[0065]

[0066] Where V m Indicates the production coefficient of variation, SD i It represents the statistical standard deviation of the test value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0067] S400: Calculate the comprehensive production variation coefficient based on the design variation coefficient and the production variation coefficient.

[0068] The production comprehensive variation coefficient proposed in this application is a comprehensive value of the design variation coefficient and the production variation coefficient, reflecting the comprehensive accuracy level of the design and production of concrete materials. In some embodiments, the production comprehensive variation coefficient can be calculated using the following formula (3):

[0069]

[0070] Where V C Indicates the comprehensive coefficient of variation of production, V d represents the design coefficient of variation, V m represents the coefficient of variation of production.

[0071] S500: Evaluate the design and production accuracy of concrete materials based on the comprehensive coefficient of variation of production.

[0072] like Figure 2 The figure is a flowchart for evaluating the design and production accuracy of concrete materials provided in an embodiment of the present application. In some embodiments, the design and production accuracy of concrete materials are evaluated according to the comprehensive coefficient of variation of production through the following steps:

[0073] S501: Obtain production comprehensive variation coefficient V c .

[0074] S502: Determine V c Range:

[0075] If V c ≤0.03, then execute S503: output the evaluation result of concrete material design and production accuracy as excellent;

[0076] If 0.03<V c ≤0.05, then execute S504: output the evaluation result of concrete material design and production accuracy as good;

[0077] If 0.05<V c ≤0.10, then execute S505: output the evaluation result of concrete material design and production accuracy as medium;

[0078] If 0.10<V c ≤0.15, then execute S506: output the evaluation result of concrete material design and production accuracy as qualified;

[0079] If 0.15<V c , then execute S507: output the evaluation result of the concrete material design and production accuracy as unqualified.

[0080] In this embodiment, steps S501 to S507 above construct an evaluation system based on the comprehensive production coefficient of variation. This evaluation system can effectively evaluate the accuracy of concrete material design and production. The accuracy of concrete material design and production refers to the degree of consistency and stability between actual results and expected targets during the design, production, and performance control processes of concrete. Based on the comprehensive production coefficient of variation designed in this application, the corresponding evaluation results are divided into five levels, and the corresponding indicators in the design and production process are shown in Table 1.

[0081] Table 1 Evaluation result parameter correspondence table

[0082]

[0083] The method proposed in this application can be used to guide production improvements. For example, if the evaluation result of concrete material design and production accuracy is excellent, it means that the concrete performance fully meets the design requirements, there are almost no quality risks, and the current concrete product design and production process are highly compatible, with little need for adjustment or improvement.

[0084] If the evaluation results of the concrete material design and production accuracy are good, the design and production are basically matched, and there are only accidental slight deviations (such as fluctuations in the moisture content of a batch of aggregates resulting in a slump deviation of 15mm), which can be quickly adjusted through daily management and control.

[0085] If the concrete material design and production accuracy evaluation result is medium, it indicates systematic deviations in the design or production, which may result in substandard structural performance. Immediately initiate a cause analysis and develop a short-term corrective plan. For example, if the cause is equipment failure, repair the faulty equipment before returning to production. If the cause is unstable raw material quality, consider changing the admixture supplier.

[0086] If the evaluation results of the concrete material design and production accuracy are qualified, the matching degree between design and production is relatively low, and the product quality only meets the basic requirements of national standards, it is recommended to carry out emergency rectification, including verification of design ratios and quality diagnosis of key links (such as metering systems and mix ratios) during production suspension.

[0087] If the evaluation result of the design and production accuracy of concrete materials is unqualified, it indicates that the design and production are seriously out of control and the concrete performance does not meet the standards at all. The use of this batch of concrete should be suspended immediately and restarted from zero. For example, the problem batch of products should be completely scrapped, the quality management system should be reconstructed, and production should be resumed after applying for certification from an authoritative organization.

[0088] In some embodiments, the physical and mechanical performance indicators include one or a combination of a compressive strength performance indicator, a flexural strength performance indicator, and a saturated water volume density performance indicator.

[0089] In some embodiments, the physical and mechanical performance indicators targeted for evaluation can be selected individually or in combination. When multiple physical and mechanical performance indicators are selected, the design and production accuracy of the concrete material is evaluated based on the comprehensive production variation coefficient calculated corresponding to each physical and mechanical performance indicator, and evaluation results under different physical and mechanical performance indicators are obtained.

[0090] The following will combine specific experiments (Example 1, Example 2 and Example 3) to evaluate a specific type of concrete material from the perspective of compressive strength performance index, flexural strength performance index and saturated bulk density performance index, so as to fully illustrate the feasibility and progressiveness of this application.

[0091] Example 1:

[0092] The design and production accuracy of the 28d compressive strength performance index of a batch of C30 concrete produced by a commercial concrete company was evaluated. The measurement method was based on the standard GB-T 50081-2019, Test method for physical and mechanical properties of concrete. Detailed evaluation process results are shown in Table 2. The comprehensive coefficient of variation was within the range of 0.05-0.10, and the design and production accuracy evaluation level of the 28d compressive strength performance index was intermediate.

[0093] Table 2 Evaluation of the accuracy of design and production of 28d compressive strength performance indicators of a commercial concrete

[0094]

[0095]

[0096] Example 2:

[0097] The design and production accuracy of the 28d flexural strength performance index of a batch of C30 concrete produced by a commercial concrete company was evaluated. The measurement method referred to the standard GB-T 50081-2019, Test method for physical and mechanical properties of concrete. The detailed evaluation process and results are shown in Table 3. The comprehensive coefficient of variation was greater than 0.15, and the design and production accuracy evaluation level of the 28d flexural strength performance index was unqualified.

[0098] Table 3 Evaluation of the accuracy of design and production of 28d flexural strength performance indicators of a commercial concrete

[0099]

[0100] Example 3:

[0101] The design and production accuracy of the 28-day saturated bulk density performance index of a batch of C30 concrete produced by a commercial concrete company was evaluated. The measurement method was based on the standard GB-T 50081-2019, Test method for physical and mechanical properties of concrete. Detailed evaluation process results are shown in Table 4. The comprehensive coefficient of variation was within the range of 0.05-0.10, and the design and production accuracy evaluation level of the 28-day saturated bulk density performance index was intermediate.

[0102] Table 4 Evaluation of the accuracy of design and production of performance indicators of 28-day saturated bulk density of a commercial concrete

[0103]

[0104] The present application also provides a device for evaluating the accuracy of concrete material design and production. Figure 3 As shown, the concrete material design and production accuracy evaluation device includes:

[0105] The performance index acquisition module 301 is configured to obtain the physical and mechanical performance indexes of the test piece;

[0106] A first coefficient calculation module 302 is configured to calculate a test average value of the physical and mechanical performance index, and calculate a design variation coefficient based on a design value of the physical and mechanical performance index;

[0107] The second coefficient calculation module 303 is configured to calculate the production variation coefficient according to the test average value of the physical and mechanical performance index and the statistical standard deviation of the test value of the physical and mechanical performance index;

[0108] The third coefficient calculation module 304 is configured to calculate the production comprehensive variation coefficient based on the design variation coefficient and the production variation coefficient;

[0109] The evaluation module 305 is configured to evaluate the design and production accuracy of concrete materials based on the comprehensive production variation coefficient.

[0110] In some embodiments, the first coefficient calculation module is further configured to calculate the design variation coefficient according to the design value of the physical and mechanical performance indicator using the following formula:

[0111]

[0112] Where V d represents the design coefficient of variation, D i represents the design value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0113] In some embodiments, the second coefficient calculation module is further configured to calculate the production variation coefficient according to the test average value of the physical and mechanical performance index and the statistical standard deviation of the test value of the physical and mechanical performance index by the following formula:

[0114]

[0115] Where V m Indicates the production coefficient of variation, SD i It represents the statistical standard deviation of the test value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

[0116] In some embodiments, the third coefficient calculation module is further configured to calculate the production comprehensive variation coefficient according to the design variation coefficient and the production variation coefficient using the following formula:

[0117]

[0118] Where V C Indicates the comprehensive coefficient of variation of production, V d represents the design coefficient of variation, V m represents the coefficient of variation of production.

[0119] In some embodiments, the evaluation module is further configured to:

[0120] If V C ≤0.03, the evaluation result of the concrete material design and production accuracy is determined to be excellent;

[0121] If 0.03<V C ≤0.05, the evaluation result of the concrete material design and production accuracy is determined to be good;

[0122] If 0.05<V C If the value is ≤0.10, the evaluation result of the concrete material design and production accuracy is determined to be medium;

[0123] If 0.10<V C ≤0.15, the evaluation result of the concrete material design and production accuracy is determined to be qualified;

[0124] If 0.15<V C , then the evaluation result of the concrete material design and production accuracy is determined to be unqualified;

[0125] Where V C It represents the comprehensive coefficient of variation of production.

[0126] In some embodiments, the physical and mechanical performance indicators include one or a combination of a compressive strength performance indicator, a flexural strength performance indicator, and a saturated water volume density performance indicator.

[0127] In some embodiments, the physical and mechanical performance indicators are selected as a single item or multiple items, and the evaluation module is further configured to evaluate the concrete material design and production accuracy based on the production comprehensive variation coefficient calculated corresponding to each physical and mechanical performance indicator when multiple physical and mechanical performance indicators are selected, so as to obtain evaluation results under different physical and mechanical performance indicators.

[0128] An embodiment of the present application provides an electronic device, which may include a processor and a memory, wherein the processor and the memory can communicate with each other; illustratively, the processor and the memory communicate with each other via a communication bus.

[0129] The processor executes the computer-executable instructions stored in the memory, so that the processor implements the solutions in the above embodiments. The processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0130] The communication bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. System buses can be categorized as address buses, data buses, and control buses. Transceivers enable communication between the database access device and other computers (e.g., clients, read-write libraries, and read-only libraries). Memory may include random access memory (RAM) or non-volatile memory.

[0131] The electronic device provided in the embodiment of the present application may be the terminal device of the above embodiment.

[0132] An embodiment of the present application further provides a computer-readable storage medium having computer instructions stored therein. When the computer instructions are executed on a computer, the computer executes the technical solution of the method for evaluating the design and production accuracy of concrete materials according to the above embodiment.

[0133] An embodiment of the present application further provides a computer program product, which includes a computer program stored in a computer-readable storage medium. At least one processor can read the computer program from the computer-readable storage medium. When the at least one processor executes the computer program, the technical solution of the method for evaluating the design and production accuracy of concrete materials in the above embodiment can be implemented.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or module, which can be electrical, mechanical or other forms.

[0135] Modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network elements. Some or all of these modules may be selected to implement the solution of this embodiment based on actual needs.

[0136] In addition, the functional modules in the various embodiments of the present application may be integrated into a single processing unit, or each module may exist physically separately, or two or more modules may be integrated into a single unit. The above-mentioned modules may be implemented in the form of hardware or hardware plus software functional units.

[0137] The above-mentioned integrated module implemented in the form of a software functional module can be stored in a computer-readable storage medium. The above-mentioned software functional module is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to perform some steps of the methods of various embodiments of the present application.

[0138] It should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), or application-specific integrated circuits (ASICs). A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly implemented by a hardware processor or implemented by a combination of hardware and software modules in the processor.

[0139] The memory may include a high-speed RAM memory, and may also include non-volatile storage NVM, such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a magnetic disk or an optical disk.

[0140] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be divided into address buses, data buses, and control buses.

[0141] The storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0142] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the storage medium can also exist as discrete components in an electronic control unit or a main control device.

[0143] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for evaluating the accuracy of concrete material design and production, characterized in that: The method comprises: Obtain the physical and mechanical properties of the specimen; Calculating the test average value of the physical and mechanical performance indicators, and calculating the design variation coefficient based on the design value of the physical and mechanical performance indicators; Calculating the production variation coefficient based on the test average value of the physical and mechanical performance indicators and the statistical standard deviation of the test values ​​of the physical and mechanical performance indicators; Calculate the comprehensive production variation coefficient based on the design variation coefficient and the production variation coefficient; The design and production accuracy of concrete materials are evaluated based on the comprehensive production variation coefficient.

2. The concrete material design and production accuracy evaluation method according to claim 1, characterized in that: According to the design values ​​of the physical and mechanical performance indicators, the design variation coefficient is calculated by the following formula: Where V d represents the design coefficient of variation, D i represents the design value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

3. The concrete material design and production accuracy evaluation method according to claim 1, characterized in that: According to the test average value of the physical and mechanical performance indicators and the statistical standard deviation of the test values ​​of the physical and mechanical performance indicators, the production variation coefficient is calculated by the following formula: Where V m Indicates the production coefficient of variation, SD i It represents the statistical standard deviation of the test value of the i-th physical and mechanical performance index, T i Represents the test average value of the i-th physical and mechanical performance index.

4. The method for evaluating the design and production accuracy of concrete materials according to claim 1, characterized in that: According to the design variation coefficient and production variation coefficient, the comprehensive production variation coefficient is calculated by the following formula: Where V C Indicates the comprehensive coefficient of variation of production, V d represents the design coefficient of variation, V m represents the coefficient of variation of production.

5. The method for evaluating the design and production accuracy of concrete materials according to claim 1, characterized in that: Based on the comprehensive production variation coefficient, the design and production accuracy of concrete materials are evaluated, including: If V C ≤0.03, the evaluation result of the concrete material design and production accuracy is determined to be excellent; If 0.03<V C ≤0.05, the evaluation result of the concrete material design and production accuracy is determined to be good; If 0.05<V C If the value is ≤0.10, the evaluation result of the concrete material design and production accuracy is determined to be medium; If 0.10<V C ≤0.15, the evaluation result of the concrete material design and production accuracy is determined to be qualified; If 0.15<V C , then the evaluation result of the concrete material design and production accuracy is determined to be unqualified; Where V C It represents the comprehensive coefficient of variation of production.

6. The method for evaluating the design and production accuracy of concrete materials according to claim 1, characterized in that: The physical and mechanical performance indicators include one of a compressive strength performance indicator, a flexural strength performance indicator, and a saturated water volume density performance indicator, and a combination thereof.

7. The method for evaluating the design and production accuracy of concrete materials according to claim 1, characterized in that: The physical and mechanical performance indicators can be selected as a single item or multiple items. When multiple physical and mechanical performance indicators are selected, the concrete material design and production accuracy are evaluated based on the production comprehensive variation coefficient calculated corresponding to each physical and mechanical performance indicator to obtain evaluation results under different physical and mechanical performance indicators.

8. A device for evaluating the accuracy of concrete material design and production, characterized in that: The device comprises: A performance index acquisition module is configured to obtain physical and mechanical performance indicators of the test piece; A first coefficient calculation module is configured to calculate a test average value of the physical and mechanical performance index, and calculate a design variation coefficient based on a design value of the physical and mechanical performance index; A second coefficient calculation module is configured to calculate a production variation coefficient based on a test average value of the physical and mechanical performance index and a statistical standard deviation of the test value of the physical and mechanical performance index; A third coefficient calculation module is configured to calculate a comprehensive production variation coefficient based on the design variation coefficient and the production variation coefficient; The evaluation module is configured to evaluate the design and production accuracy of concrete materials based on the comprehensive production variation coefficient.

9. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the concrete material design and production accuracy evaluation method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the concrete material design and production accuracy evaluation method according to any one of claims 1 to 7.

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