Method and device for determining concrete mix proportion based on desert sand

Abstract

The present invention relates to the field of concrete, and provides a method and device for determining the mix proportion of concrete based on desert sand. Among them, the method for determining the mix proportion of concrete based on desert sand includes: obtaining the particle sizes of each raw material component in the desert sand concrete; determining a first relationship between the particle sizes of each raw material component in the desert sand concrete and the cumulative particle size rate according to the particle sizes of each raw material component; determining a second relationship between the particle size and the cumulative particle size rate in the desert sand concrete with different mix proportions; calculating the deviation of the cumulative particle size rate corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of each raw material component in the desert sand concrete with different mix proportions; and selecting the final mix proportion of the desert sand concrete according to each deviation. Through the present invention, the time for designing concrete based on desert sand is shortened, and the test cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of concrete, and in particular to a method and device for determining the mix ratio of concrete based on desert sand. Background Art

[0002] In the prior art, during the design and preparation of concrete based on desert sand, a large number of tests need to be carried out for performance testing, and then the mix ratio of concrete can be obtained. However, the method of obtaining the concrete mix ratio through a large number of tests not only cannot quickly obtain the concrete mix ratio, but also has the problem of too high cost. Summary of the Invention

[0003] In order to shorten the time for designing concrete based on desert sand and reduce the test cost, the present invention proposes a method and device for determining the mix ratio of concrete based on desert sand.

[0004] In a first aspect, the present invention provides a method for determining the mix ratio of concrete based on desert sand, the method comprising:

[0005] Obtaining the particle sizes of the raw material components in the desert sand concrete;

[0006] Determining a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of the raw material components;

[0007] Determining a second relationship between the particle sizes of the raw material components and the cumulative particle size ratio in the desert sand concrete with different mix ratios;

[0008] Calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of the raw material components in the desert sand concrete with different mix ratios;

[0009] Selecting the final mix ratio of the desert sand concrete according to each deviation.

[0010] Through the above method, combining the influence of the hydration products on the packing state in the desert sand concrete, calculating the deviation between the second relationship and the first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete with different mix ratios, and determining the final mix ratio of the desert sand concrete. Compared with the prior art in which the mix ratio of the desert sand concrete is designed through a large number of tests, this method can quickly configure the mix ratio of the desert sand concrete starting from the physical and chemical characteristics of the raw material components of the desert sand concrete, and at the same time reduces the test cost.

[0011] In an alternative embodiment, calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and the second relationship according to the volume change amount of the hydration products of the raw material components in the desert sand concrete includes:

[0012] Obtaining the water-cement ratio of the desert sand concrete;

[0013] Calculate the volume change of the hydration products in the desert sand concrete based on the mass change of the hydration products of each raw material component in the desert sand concrete with a preset quality.

[0014] Determine the influence factor of the volume change of the hydration products on the packing state based on the volume change of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio.

[0015] Calculate the deviation of the cumulative particle size ratios corresponding to different particle sizes in the first relationship and the second relationship based on the influence factor.

[0016] In an alternative embodiment, determining the influence factor of the volume change of the hydration products on the packing state based on the volume change of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio includes:

[0017]

[0018] where k is the influence factor; ω m is the water-cement ratio at the mix ratio m of the desert sand concrete; k i is the volume change of the i-th hydration product; n is the number of hydration products.

[0019] In an alternative embodiment, calculating the deviation of the cumulative particle size ratios corresponding to each particle size in the first relationship and the second relationship based on the influence factor includes:

[0020]

[0021] where RSS is the deviation; k is the influence factor; D i is the i-th particle size interval; n is the total number of particle size intervals; P mix (D i ) is the cumulative particle size ratio with a particle size smaller than D in the second relationship i ; P tra (D i ) is the cumulative particle size ratio with a particle size smaller than D in the first relationship i .

[0022] In an alternative embodiment, determining the first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete based on the particle size of each raw material component includes:

[0023] Determine the first relationship based on the particle size of each raw material component and the modified particle packing model.

[0024] In an alternative embodiment, the modified particle packing model is expressed as:

[0025]

[0026] Among them, P(D) is the cumulative particle size ratio with a particle size smaller than D; D is the particle size of the raw material components; D q max is the maximum particle size; D q min is the minimum particle size; q is the distribution modulus of the desert sand concrete accumulation.

[0027] In an alternative embodiment, according to each deviation, the final mix ratio of the desert sand concrete is selected, including:

[0028] Select the mix ratio with the smallest deviation as the final mix ratio of the desert sand concrete.

[0029] In a second aspect, the present invention also provides a device for determining the mix ratio of concrete based on desert sand, and the device includes:

[0030] An acquisition module for acquiring the particle sizes of the raw material components in the desert sand concrete;

[0031] A first determination module for determining a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of the raw material components;

[0032] A second determination module for determining a second relationship between the particle sizes of the raw material components and the cumulative particle size ratio in the desert sand concrete with different mix ratios;

[0033] A calculation module for calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of the raw material components in the desert sand concrete with different mix ratios;

[0034] A selection module for selecting the final mix ratio of the desert sand concrete according to each deviation.

[0035] Through the above device, in combination with the influence of the hydration products on the packing state of the desert sand concrete, calculate the deviation between the second relationship and the first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete with different mix ratios, and determine the final mix ratio of the desert sand concrete. Compared with the related art in which the mix ratio of the desert sand concrete is designed through a large number of tests, this method can quickly configure the mix ratio of the desert sand concrete starting from the physical and chemical characteristics of the raw material components of the desert sand concrete, and at the same time reduces the test cost.

[0036] In a third aspect, the present invention also provides a computer device, including a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the steps of the method for determining the mix ratio of concrete based on desert sand in the first aspect or any one of the embodiments of the first aspect.

[0037] Fourthly, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for determining the concrete mix ratio based on desert sand according to the first aspect or any embodiment of the first aspect are implemented. Description of the Drawings

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 is a flowchart of a method for determining the concrete mix ratio based on desert sand according to an exemplary embodiment;

[0040] Figure 2 is, in one example, the original gradation curve of desert sand;

[0041] Figure 3 is, in one example, the original gradation curve of cement;

[0042] Figure 4 is, in one example, the original gradation curve of fly ash;

[0043] Figure 5 is, in one example, the mass change diagram of calcium hydroxide;

[0044] Figure 6 is, in one example, the mass change diagram of ettringite;

[0045] Figure 7 is, in one example, the mass change diagram of tricalcium silicate;

[0046] Figure 8 is a schematic structural diagram of a device for determining the concrete mix ratio based on desert sand according to an exemplary embodiment;

[0047] Figure 9 is a schematic hardware structure diagram of a computer device according to an exemplary embodiment. Detailed Embodiments

[0048] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0049] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Figure 1 is a flowchart of a method for determining the mix proportion of concrete based on desert sand proposed according to an exemplary embodiment. As Figure 1 shown, the method for determining the mix proportion of concrete based on desert sand includes the following steps S101 to S105.

[0051] Step S101: Obtain the particle sizes of the raw material components in the desert sand concrete.

[0052] In an alternative embodiment, the raw material components in the desert sand concrete include, but are not limited to, desert sand, cement, fly ash, water, stones, and water reducer. Among them, the desert sand in the desert sand concrete can be desert sand with different depths and distribution areas.

[0053] In an alternative embodiment, a laser particle size distribution analyzer can be used to test and obtain the particle size data of different raw material components such as cement, desert sand, and fly ash.

[0054] Step S102: Determine the first relationship between the particle size and the cumulative particle size percentage in the desert sand concrete according to the particle sizes of the raw material components.

[0055] In an alternative embodiment, according to the particle sizes of the raw material components, the maximum and minimum particle sizes in the raw material components are determined; then, according to the maximum and minimum particle sizes, the first relationship between the particle size and the cumulative particle size percentage is calculated using a modified particle packing model. At this time, each particle in the desert sand concrete in the first relationship obtained according to the modified particle packing model will form the densest packing state. Exemplarily, the first relationship between the particle size and the cumulative particle size percentage can be characterized by a grading curve, and the grading curve at this time is used as the optimal grading curve.

[0056] Step S103: Determine the second relationship between the particle sizes and the cumulative particle size percentages of the raw material components in the desert sand concrete with different mix proportions.

[0057] In an alternative embodiment, when the mix proportion of the desert sand concrete is different, the second relationship between the particle size and the cumulative particle size percentage is also different.

[0058] Step S104: Calculate the deviation of the cumulative particle size percentage corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of the raw material components in the desert sand concrete with different mix proportions.

[0059] In an alternative embodiment, the hydration products include, but are not limited to, calcium hydroxide, ettringite, tricalcium silicate C3S, etc.

[0060] Step S105: Select the final mix proportion of the desert sand concrete according to each deviation.

[0061] In an alternative embodiment, the mix proportion with the smallest deviation can be selected as the final mix proportion of the desert sand concrete.

[0062] Considering that the volume of the hydration products in the desert sand concrete will change, that is, the particle size in the desert sand concrete changes with the hydration reaction, which in turn leads to the change of the packing state of the desert sand concrete. Through the method provided by the embodiments of the present invention, combined with the influence of the volume change of the hydration products in the desert sand concrete on the packing state, calculate the deviation between the second relationship and the first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete with different mix proportions, and determine the final mix proportion of the desert sand concrete. Compared with the related art in which the mix proportion of the desert sand concrete is designed through a large number of tests, the method provided by the embodiments of the present invention can quickly configure the mix proportion of the desert sand concrete starting from the physical and chemical characteristics of each raw material component of the desert sand concrete, and at the same time reduce the test cost.

[0063] In an example, in the above step S102, the first relationship is determined through the particle size of each raw material component and the modified particle packing model.

[0064] In an alternative embodiment, the modified particle packing model (MMA model) is expressed as:

[0065]

[0066] where P(D) is the cumulative particle size ratio of particle sizes smaller than D; D is the particle size of the raw material component; D q max is the maximum particle size; D q min is the minimum particle size; q is the distribution modulus of the desert sand concrete packing. Exemplarily, the empirical value of the distribution modulus q can be determined through a sensitivity test.

[0067] In an example, in the above step S104, the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and the second relationship is calculated in the following manner:

[0068] Step a1: Obtain the water-cement ratio of the desert sand concrete.

[0069] In an alternative embodiment, the water-cement ratio refers to the water-cement ratio, that is, the weight ratio of water to cement.

[0070] Step a2: Calculate the volume change amount of the hydration products in the desert sand concrete according to the mass change amount of the hydration products of each raw material component in the desert sand concrete with a preset mass. In the embodiments of the present invention, the preset mass can be set according to actual needs and is not specifically limited herein.

[0071] In an alternative embodiment, the volume change of the hydration product can be obtained by dividing the mass change of the hydration product by the density of the corresponding hydration product.

[0072] Step a3: Determine the influence factor of the volume change of the hydration product on the packing state according to the volume change of the hydration products of the raw material components in the desert sand concrete and the water-cement ratio.

[0073] In an alternative embodiment, the influence factor of the volume change of the hydration product on the packing state can be calculated by the following formula:

[0074]

[0075] where k is the influence factor; ω m is the water-cement ratio at the mix ratio m of the desert sand concrete; k i is the volume change of the i-th hydration product; and n is the number of hydration products.

[0076] Step a4: Calculate the deviation of the cumulative particle size ratios corresponding to different particle sizes in the first relationship and the second relationship according to the influence factor.

[0077] In an alternative embodiment, the deviation of the cumulative particle size ratios corresponding to each particle size in the first relationship and the second relationship is calculated by the following formula:

[0078]

[0079] where RSS is the deviation; k is the influence factor; D i is the i-th particle size range; n is the total number of particle size ranges; P mix (D i ) is the cumulative particle size ratio of the particle sizes smaller than D i in the second relationship; P tra (D i ) is the cumulative particle size ratio of the particle sizes smaller than D i in the first relationship.

[0080] In an example, when the deviation of the cumulative particle size ratios corresponding to each particle size in the first relationship and each second relationship is smaller, it indicates that the packing state of the desert sand concrete under this mix ratio is closer to the packing state in the first relationship, that is, it is easier for the particles of the desert sand concrete to form the closest packing state. Therefore, in the above step S105, the mix ratio with the smallest deviation can be selected as the final mix ratio of the desert sand concrete. Exemplarily, the mix ratio can be continuously adjusted by the optimization algorithm of the least squares method to minimize the deviation.

[0081] The working process of a method for determining the mix ratio of concrete based on desert sand is described below through a specific embodiment.

[0082] Example 1

[0083] In the embodiment of the present invention, the raw materials of the desert sand concrete include cement, desert sand, fly ash, etc. The specific steps for determining the mix proportion of the desert sand concrete are as follows:

[0084] Step b1: Take desert sand from different depths and distribution areas, initially determine the particle size range according to the actual situation, and gradually set the particle size intervals from small to large. Then use a laser particle size distribution analyzer to test and obtain the particle size distribution data of different raw material components such as cement, desert sand, and fly ash, as shown in Tables 1 to 3 respectively.

[0085] Table 1 Cement particle size distribution data

[0086]

[0087]

[0088] Table 2 Desert sand particle size distribution data

[0089] Particle size μm Interval % Cumulative % Particle size μm Interval % Cumulative % Particle size μm Interval % Cumulative % 0.100-0.117 0 0 2.671-3.290 0 0 75.07-92.47 0.01 0.01 0.117-0.144 0 0 3.290-4.053 0 0 92.47-113.9 0.24 0.25 0.144-0.177 0 0 4.053-4.993 0 0 113.9-140.3 1.42 1.67 0.177-0.218 0 0 4.993-6.150 0 0 140.3-172.8 3.88 5.55 0.218-0.269 0 0 6.150-7.576 0 0 172.8-212.9 7.47 13.02 0.269-0.332 0 0 7.576-9.332 0 0 212.9-262.2 11.58 24.6 0.332-0.409 0 0 9.332-11.49 0 0 262.2-323.0 14.51 39.11 0.409-0.503 0 0 11.49-14.16 0 0 323.0-397.9 15.41 54.52 0.503-0.620 0 0 14.16-17.44 0 0 397.9-490.2 15.86 70.38 0.620-0.764 0 0 17.44-21.48 0 0 490.2-603.9 15.57 85.95 0.764-0.941 0 0 21.48-26.46 0 0 603.9-743.9 10.57 96.52 0.941-1.160 0 0 26.46-32.60 0 0 743.9-916.3 3.28 99.8 1.160-1.429 0 0 32.60-40.16 0 0 916.3-1128 0.2 100 1.429-1.760 0 0 40.16-49.47 0 0 1128-1390 0 100 1.760-2.168 0 0 49.47-60.94 0 0 1390-1712 0 100 2.168-2.671 0 0 60.94-75.07 0 0 1712-2000 0 100

[0090] Table 3 Fly ash particle size distribution data

[0091]

[0092]

[0093] Step b2: Select the maximum diameter and minimum diameter of the solid particles through the particle size distribution data, determine the empirical value of the distribution modulus q using sensitivity testing, and calculate the original grading curves of the raw material components in the desert sand concrete based on the MMA model. Exemplarily, the original grading curves of desert sand, cement, and fly ash are respectively as Figures 2 to 4 shown.

[0094] Step b3: Calculate the deviation RSS between the particle size distribution data of the admixture in the existing concrete mix proportion and the optimal mix proportion curve data obtained from the MMA model. Consider the influence factor (k value) of the volume change of the hydration product on the bulk density, calculate the change rate of the volume of various hydration products in 100 g of cement to obtain the k value, and then debug the modified particle packing model. Use an optimization algorithm based on the least squares method to adjust the content of different raw material components of the original concrete materials, so that the combined grading curve and the target curve achieve the best fit, that is, the RSS value is the smallest. At this time, the rapid mix proportion design of the in-situ desert sand concrete can be realized.

[0095] Among them, the volume change of the hydration product can be obtained by dividing the mass change of the hydration product by the density. The mass changes of the hydration products calcium hydroxide, ettringite, and C3S are respectively asFigures 5 to 7 as shown

[0096] Table 4 shows the calculated deviation RSS under different mix ratios, where C represents cement, FA represents fly ash, S represents fine aggregate (desert sand), G represents coarse aggregate (stone), W represents water, SP represents water reducer, and k represents the influencing factor.

[0097] Table 4 shows the deviation calculated under different mix ratios

[0098]

[0099] Based on the same inventive concept, the present invention also provides a device for determining the mix ratio of desert sand-based concrete, as Figure 8 shown, the device includes:

[0100] An acquisition module 801, configured to acquire the particle sizes of the raw material components in the desert sand concrete; for the detailed content, refer to the description of step S101 in the above embodiment, which will not be elaborated here.

[0101] A first determination module 802, configured to determine a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of the raw material components; for the detailed content, refer to the description of step S102 in the above embodiment, which will not be elaborated here.

[0102] A second determination module 803, configured to determine a second relationship between the particle sizes and the cumulative particle size ratios of the raw material components in the desert sand concrete with different mix ratios; for the detailed content, refer to the description of step S103 in the above embodiment, which will not be elaborated here.

[0103] A calculation module 804, configured to calculate the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of the raw material components in the desert sand concrete with different mix ratios; for the detailed content, refer to the description of step S104 in the above embodiment, which will not be elaborated here.

[0104] A selection module 805, configured to select the final mix ratio of the desert sand concrete according to each deviation. For the detailed content, refer to the description of step S105 in the above embodiment, which will not be elaborated here.

[0105] Through the above device, in combination with the influence of the hydration products on the packing state in the desert sand concrete, calculate the deviation between the second relationship and the first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete with different mix ratios, and determine the final mix ratio of the desert sand concrete. Compared with the related art in which the mix ratio of the desert sand concrete is designed through a large number of tests, this method can quickly configure the mix ratio of the desert sand concrete starting from the physical and chemical characteristics of the raw material components of the desert sand concrete, and at the same time reduce the test cost.

[0106] In one example, the calculation module 804 includes:

[0107] An acquisition sub-module, configured to acquire the water-cement ratio of the desert sand concrete; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0108] A first calculation sub-module, configured to calculate the volume change amount of the hydration products in the desert sand concrete according to the mass change amount of the hydration products of each raw material component in the desert sand concrete with a preset mass; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0109] A first determination sub-module, configured to determine the influence factor of the volume change of the hydration products on the packing state according to the volume change amount of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0110] A second calculation sub-module, configured to calculate the deviation of the cumulative particle size ratios corresponding to different particle sizes in the first relationship and the second relationship according to the influence factor; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0111] In one example, the determination sub-module includes:

[0112]

[0113] where k is the influence factor; ω m is the water-cement ratio at the mix ratio m of the desert sand concrete; k i is the volume change amount of the i-th hydration product; n is the number of hydration products; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0114] In one example, the second calculation sub-module includes:

[0115]

[0116] where RSS is the deviation; k is the influence factor; D i is the i-th particle size interval; n is the total number of particle size intervals; P mix (D i ) is the cumulative particle size ratio in the second relationship with a particle size smaller than D i ; P tra (D i ) is the cumulative particle size ratio in the first relationship with a particle size smaller than D i ; for details, refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0117] In one example, the first determination module 802 includes:

[0118] The second determination sub-module is configured to determine the first relationship according to the particle sizes of the raw material components and the corrected particle packing model. For the detailed content, please refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0119] In one example, the corrected particle packing model in the second determination sub-module is expressed as:

[0120]

[0121] where P(D) is the cumulative particle size ratio of particle sizes less than D; D is the particle size of the raw material component; D q max is the maximum particle size; D q min is the minimum particle size; and q is the distribution modulus of the desert sand concrete packing. For the detailed content, please refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0122] In one example, the selection module 805 includes:

[0123] A selection sub-module, configured to select the mix ratio with the smallest deviation as the final mix ratio of the desert sand concrete. For the detailed content, please refer to the description in the foregoing embodiments, which will not be elaborated herein.

[0124] For the specific limitations and beneficial effects of the above device, reference can be made to the limitations on the method for determining the mix ratio of concrete based on desert sand in the foregoing text, which will not be elaborated herein. Each of the above modules can be implemented in whole or in part by software, hardware, and their combination. Each of the above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each of the above modules.

[0125] Figure 9 is a schematic diagram of the hardware structure of a computer device according to an exemplary embodiment. As Figure 9 shown, the device includes one or more processors 910 and a memory 920. The memory 920 includes persistent memory, volatile memory, and a hard disk. Figure 9 One processor 910 is taken as an example herein. The device may further include: an input device 930 and an output device 940.

[0126] The processor 910, the memory 920, the input device 930, and the output device 940 may be connected through a bus or other means. Figure 9 Taking connection through a bus as an example herein.

[0127] The processor 910 may be a Central Processing Unit (CPU). The processor 910 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., or a combination of the above types of chips. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0128] As a non-transitory computer-readable storage medium, the memory 920 includes persistent memory, volatile memory, and a hard disk, and can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the method for determining the concrete mix ratio based on desert sand in the embodiments of the present application. The processor 910 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions, and modules stored in the memory 920, that is, implements any one of the above methods for determining the concrete mix ratio based on desert sand.

[0129] The memory 920 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data used according to needs, etc. In addition, the memory 920 may include high-speed random access memory and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 920 may optionally include a memory remotely provided with respect to the processor 910, and these remote memories may be connected to the data processing device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0130] The input device 930 may receive input digital or character information and generate signal inputs related to user settings and function controls. The output device 940 may include a display device such as a display screen.

[0131] One or more modules are stored in the memory 920 and, when executed by one or more processors 910, execute the method as Figure 1 shown.

[0132] The above-mentioned product can execute the method provided by the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. For the technical details not described in detail in this embodiment, reference may be specifically made to the relevant descriptions in the embodiment as shown in Figure 1 the related description in the embodiment shown.

[0133] The embodiments of the present invention also provide a non-transitory computer storage medium. The computer storage medium stores computer-executable instructions, and the computer-executable instructions can execute the method in any of the above method embodiments. Among them, the storage medium can be a magnetic disk, an optical disc, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (abbreviation: HDD), or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0134] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0135] The above are only the specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for determining the mix proportion of desert sand-based concrete, characterized in that, the method includes: Obtaining the particle sizes of each raw material component in the desert sand concrete; Determining a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of each raw material component; Determining a second relationship between the particle sizes and the cumulative particle size ratio of each raw material component in the desert sand concrete with different mix proportions; Calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and each second relationship according to the volume change amount of the hydration products of each raw material component in the desert sand concrete with different mix proportions; Selecting the final mix proportion of the desert sand concrete according to each deviation; Calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and the second relationship according to the volume change amount of the hydration products of each raw material component in the desert sand concrete, including: Obtaining the water-cement ratio of the desert sand concrete; Calculating the volume change amount of the hydration products in the desert sand concrete according to the mass change amount of the hydration products of each raw material component in the desert sand concrete with a preset mass; Determining the influence factor of the volume change of the hydration products on the packing state according to the volume change amount of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio; Calculating the deviation of the cumulative particle size ratio corresponding to different particle sizes in the first relationship and the second relationship according to the influence factor.

2. The method according to claim 1, characterized in that, Determining the influence factor of the volume change of the hydration products on the packing state according to the volume change amount of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio, including: Among them, k is the influence factor; ω m is the water-cement ratio when the mix proportion of desert sand concrete is m; k i is the volume change of the i-th hydration product; n is the number of hydration products.

3. The method according to claim 1 or 2, characterized in that, Calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and the second relationship according to the influence factor, including: where RSS is the deviation; k is the influence factor; D i is the i-th particle size range; n is the total number of particle size ranges; P mix (D i ) is the cumulative particle size fraction with particle size less than D i in the second relationship; P tra (D i ) is the cumulative particle size fraction with particle size less than D i in the first relationship.

4. The method according to claim 1, characterized in that, The step of determining a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of each raw material component includes: Determining the first relationship according to the particle sizes of each raw material component and a modified particle packing model.

5. The method according to claim 4, characterized in that, The modified particle packing model is expressed as: Among them, P(D) is the cumulative particle size ratio with a particle size smaller than D; D is the particle size of the raw material component; D q max is the maximum particle size; D q min is the minimum particle size; q is the distribution modulus of the desert sand concrete accumulation.

6. The method according to claim 1, characterized in that, The step of selecting the final mix proportion of the desert sand concrete according to each deviation includes: Selecting the mix proportion with the smallest deviation as the final mix proportion of the desert sand concrete.

7. A device for determining the mix proportion of desert sand-based concrete, characterized in that, the device includes: An obtaining module, configured to obtain the particle sizes of each raw material component in the desert sand concrete; A first determining module, configured to determine a first relationship between the particle size and the cumulative particle size ratio in the desert sand concrete according to the particle sizes of each raw material component; A second determining module, configured to determine a second relationship between the particle sizes and the cumulative particle size ratio of each raw material component in the desert sand concrete with different mix proportions; A calculation module, configured to calculate the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and each of the second relationships according to the volume change amount of the hydration products of each raw material component in the desert sand concrete with different mix ratios; A selection module, configured to select the final mix ratio of the desert sand concrete according to each of the deviations; Calculating the deviation of the cumulative particle size ratio corresponding to each particle size in the first relationship and the second relationship according to the volume change amount of the hydration products of each raw material component in the desert sand concrete, including: Obtaining the water-cement ratio of the desert sand concrete; Calculating the volume change amount of the hydration products in the desert sand concrete according to the mass change amount of the hydration products of each raw material component in the desert sand concrete with a preset mass; Determining the influence factor of the volume change of the hydration products on the packing state according to the volume change amount of the hydration products of each raw material component in the desert sand concrete and the water-cement ratio; Calculating the deviation of the cumulative particle size ratio corresponding to different particle sizes in the first relationship and the second relationship according to the influence factor.

8. A computer device Characterized in that It includes a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the steps of the method for determining the mix ratio of desert sand-based concrete according to any one of claims 1-6.

9. A computer-readable storage medium, on which a computer program is stored, Characterized in that When the computer program is executed by a processor, it implements the steps of the method for determining the mix ratio of desert sand-based concrete according to any one of claims 1-6.

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