Method and device for detecting moisture content of coarse aggregate

Abstract

The invention relates to the technical field of constructional engineering, in particular to a method and device for detecting the moisture content of coarse aggregate. The method comprises the following steps: acquiring the total volume of a volumetric flask, the water content of a coarse aggregate sample, and the total mass of the coarse aggregate sample and water added when the coarse aggregate sample is put into the volumetric flask and water is added until the volumetric flask is full; obtaining the apparent density of the coarse aggregate sample and the density of water; calculating the volume of the coarse aggregate sample based on the total volume, the total mass, the apparent density of the coarse aggregate sample and the density of water; calculating the product of the density and the volume of the coarse aggregate sample to obtain the dry mass of the coarse aggregate sample; and calculating the water content of the coarse aggregate sample based on the water content mass and the dry mass of the coarse aggregate sample. The detection efficiency of the water content of the coarse aggregate can be greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and in particular, to a method and device for detecting the moisture content of coarse aggregate. Background Art

[0002] Currently, the test methods for the moisture content of building materials used in the construction industry face significant challenges in on-site applications. The main problem is that the detection process takes a long time, making it difficult to provide test results in a timely manner, thus bringing many inconveniences to the quality control on the construction site. Especially in a cement concrete mixing plant, the control of the moisture content of coarse aggregate is crucial. However, using the "drying method" in accordance with the current test procedures to detect the moisture content takes a long time. Summary of the Invention

[0003] To solve the problem of low efficiency in detecting the moisture content of coarse aggregate in the prior art, the present application provides a method and device for detecting the moisture content of coarse aggregate.

[0004] In a first aspect, the present application provides a method for detecting the moisture content of coarse aggregate, adopting the following technical solution: A method for detecting the moisture content of coarse aggregate includes: obtaining the total volume of a volumetric flask, the water-containing mass of a coarse aggregate sample, and the total mass of the added coarse aggregate sample and water when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full; obtaining the apparent density of the coarse aggregate sample and the density of water; calculating the volume of the coarse aggregate sample based on the total volume, the total mass, the apparent density of the coarse aggregate sample, and the density of water; calculating the product of the density and volume of the coarse aggregate sample to obtain the dry mass of the coarse aggregate sample; calculating the moisture content of the coarse aggregate sample based on the water-containing mass and dry mass of the coarse aggregate sample.

[0005] By adopting the above technical solution, accurately measuring the total volume of the volumetric flask, the water-containing mass of the coarse aggregate sample, and the total mass of the mixture formed by the coarse aggregate and water, and combining the apparent density of the coarse aggregate sample and the density of water, the volume and dry mass of the coarse aggregate sample can be accurately calculated, and then the moisture content of the coarse aggregate sample can be accurately obtained, greatly improving the detection efficiency of the moisture content of coarse aggregate.

[0006] The present application can be further configured in a preferred example as follows: The calculating the volume of the coarse aggregate sample based on the total volume, the total mass, the apparent density of the coarse aggregate sample, and the density of water includes: substituting the total volume, the total mass, the apparent density of the coarse aggregate sample, and the density of water into a volume formula to obtain the volume of the coarse aggregate sample; The volume formula is: M = ρ 2 *V 2 + (V 总 - V 2 ) ρ 1 ; Wherein, V 总 is the total volume; M is the total mass; ρ 1 is the density of water; ρ 2 is the apparent density of the coarse aggregate sample; V 2 is the volume of the coarse aggregate sample.

[0007] By adopting the above technical solution, substituting the total volume of the volumetric flask, the total mass of the coarse aggregate and water, the apparent density of the coarse aggregate, and the density of water into a specific volume formula can accurately calculate the volume of the coarse aggregate sample. This process not only utilizes physical principles but also ensures the accuracy and reliability of the measurement results.

[0008] In a preferred example, the present application can be further configured as: calculating the water content rate of the coarse aggregate sample based on the water-containing mass and dry mass of the coarse aggregate sample, including: Substituting the water-containing mass and the dry mass into the water content rate formula to obtain the water content rate of the coarse aggregate sample; The water content rate formula is: W = (m - m 2 ) / m 2 ; Wherein, is the water content rate of the coarse aggregate sample; m is the water-containing mass of the coarse aggregate sample; m 2 is the dry mass of the coarse aggregate sample.

[0009] By adopting the above technical solution, directly substituting the water-containing mass and dry mass of the coarse aggregate sample into the water content rate calculation formula can quickly and accurately obtain the water content rate of the coarse aggregate. This method is not only simple to operate but also has accurate calculation results.

[0010] In a preferred example, the present application can be further configured as: obtaining the total volume of the volumetric flask, including: Obtaining the mass of the empty volumetric flask, and the volumetric flask includes a glass cover plate; Obtaining the mass of the full volumetric flask after it is filled with water; Determining the mass difference between the full mass and the empty mass, and calculating the ratio of the mass difference to the density of water as the total volume of the volumetric flask.

[0011] By adopting the above technical solution, accurately measuring the mass of the empty volumetric flask and the mass of the full volumetric flask after it is filled with water, and using the known density of water, can accurately calculate the total volume of the volumetric flask. The operation is simple and ensures high-precision volume measurement.

[0012] In a preferred example, the present application can be further configured as follows: When obtaining the total mass of the coarse aggregate sample and water added when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full, it includes: Obtaining the mass of the empty volumetric flask; Obtaining the final mass of the volumetric flask when the coarse aggregate sample and water are added to the volumetric flask until it is full; Calculating the difference between the final mass and the mass of the empty flask as the total mass of the coarse aggregate sample and water.

[0013] By adopting the above technical solution, accurately measuring the mass change of the volumetric flask before and after adding the coarse aggregate sample and water can accurately obtain the total mass of the coarse aggregate sample and water, effectively avoiding errors that may be introduced by additional measurement steps, and providing accurate data support for subsequent moisture content calculation.

[0014] In a preferred example, the present application can be further configured as follows: The step of adding the coarse aggregate sample and water to the volumetric flask until it is full includes: Adding a preset amount of water to the volumetric flask, and then adding all of the coarse aggregate sample to the volumetric flask; Adding a surfactant to the volumetric flask and rotating the volumetric flask to expel air; Adding water to the volumetric flask until it is full.

[0015] By adopting the above technical solution, first adding a preset amount of water to the volumetric flask, then adding the coarse aggregate sample, and cleverly using the surfactant to reduce bubbles, effectively expelling air by rotating the volumetric flask, and finally adding water to full. This series of operations ensures that the coarse aggregate sample is fully wetted in water and there is no obvious bubble interference, thereby improving the measurement accuracy and the reliability of the results.

[0016] In a preferred example, the present application can be further configured as follows: The temperature change of water during the process of adding the coarse aggregate sample and water to the volumetric flask until it is full does not exceed ±2°C.

[0017] By adopting the above technical solution, strictly controlling the temperature change of water within ±2°C effectively avoids the expansion or contraction of the water volume caused by temperature change, thereby ensuring that the volume and mass of water remain constant during the measurement process.

[0018] In a preferred example, the present application can be further configured as follows: The particle size range of the coarse aggregate sample is 4.75 mm - 37.5 mm.

[0019] By adopting the above technical solutions, the particle size uniformity of the specimens is ensured, facilitating effective volume and mass measurement in the volumetric flask. Meanwhile, the coarse aggregates within this particle size range can more accurately reflect their water content state in actual applications, thereby improving the representativeness and practicality of the water content detection results.

[0020] In a preferred example of the present application, it can be further configured that: the density of the water is the standard water density corresponding to the current test temperature in the specification table.

[0021] By adopting the above technical solutions, it is ensured that under different test conditions, the density value of the water can accurately reflect the actual situation, thereby eliminating the density error caused by temperature differences and improving the accuracy and reliability of calculating the volume and water content of the coarse aggregates using the water mass and volume.

[0022] In a second aspect, the present application provides a detection device for the water content of coarse aggregates, adopting the following technical solutions: A detection device for the water content of coarse aggregates includes: an electronic balance, a volumetric flask, and an electronic device; wherein, the weighing capacity of the electronic balance is not less than 5000 g, and the sensitivity is 0.01 g; the volume of the volumetric flask is 1000 mL; The electronic device includes: One or more processors; A memory; At least one application program, wherein at least one application program is stored in the memory and is configured to be executed by at least one processor, and the at least one application program is configured to: execute the detection method for the water content of coarse aggregates as described in any item of the first aspect.

[0023] In a third aspect, the present application provides a computer-readable storage medium, adopting the following technical solutions: A computer-readable storage medium, on which a computer program is stored. When the computer program is executed on a computer, it causes the computer to execute the detection method for the water content of coarse aggregates as described in any item of the first aspect.

[0024] In a fourth aspect, the present application provides a computer program product, adopting the following technical solutions: A computer program product includes a computer program. When the computer program is executed by a processor, it implements the detection method for the water content of coarse aggregates as described in any item of the first aspect.

[0025] In summary, the present application includes the following beneficial technical effects: By precisely measuring the total volume of the volumetric flask, the water content mass of the coarse aggregate sample, and the total mass of the mixture formed by the coarse aggregate and water, and combining the apparent density of the coarse aggregate sample and the density of water, the volume and dry mass of the coarse aggregate sample can be accurately calculated, and then the water content rate of the coarse aggregate sample can be accurately obtained, greatly improving the detection efficiency of the water content rate of the coarse aggregate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic flow chart of a method for detecting the water content rate of coarse aggregate provided by an embodiment of the present application; Figure 2 FIG. is a schematic structural diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will further describe the present application in detail Figure 1 - with reference to the Figure 2 drawings.

[0028] This specific embodiment is only an explanation of the present application, and it is not a limitation of the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0030] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after, unless otherwise specified.

[0031] It should be noted that in the alternative embodiments of the present application, for relevant data such as object information, when the embodiments in the present application are applied to specific products or technologies, object permission or consent is required, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of relevant countries and regions. That is to say, if the embodiments in the present application involve data related to an object, it needs to be obtained under the authorization and consent of the object, the authorization and consent of relevant departments, and in compliance with the relevant laws, regulations, and standards of the country and region. In the embodiments, if personal information is involved, the acquisition of all personal information requires the consent of the individual. If sensitive information is involved, the separate consent of the information subject is required, and the embodiments also need to be implemented under the authorization and consent of the object.

[0032] An embodiment of the present application provides a method for detecting the moisture content of coarse aggregate. As Figure 1 shown, the method provided in the embodiment of the present application is executed by an electronic device, which can be a server or a terminal device. Among them, the server can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. The terminal device can be a smart phone, a tablet computer, a notebook computer, a desktop computer, etc., but is not limited thereto. The terminal device and the server can be directly or indirectly connected through wired or wireless communication methods, and the embodiments of the present application do not limit this here.

[0033] Given the densities of water and the coarse aggregate sample, the dry mass of the natural coarse aggregate can be determined when the mass and total volume of the mixture of water and the coarse aggregate sample are known and remain unchanged.

[0034] A method for detecting the moisture content of coarse aggregate provided by an embodiment of the present application includes steps S101 - S105, where: S101. Obtain the total volume of the volumetric flask, the water-containing mass of the coarse aggregate sample, and the total mass of the added coarse aggregate sample and water when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full.

[0035] Specifically, the coarse aggregate sample is the coarse aggregate in its natural state, and the water-containing mass of the coarse aggregate sample is the mass of the coarse aggregate sample to be detected in its natural state, which can be measured with an electronic balance and manually input into the electronic device.

[0036] S102. Obtain the apparent density of the coarse aggregate sample and the density of water.

[0037] Specifically, determine the apparent density of the coarse aggregate sample and the temperature of water according to the method specified in the aggregate test procedure. Then, the temperature of water is the current test temperature, and the standard water density corresponding to the current test temperature is found in the specification table.

[0038] S103. Calculate the volume of the coarse aggregate sample based on the total volume, total mass, apparent density of the coarse aggregate sample, and density of water.

[0039] Specifically, ensure that the total volume of the mixture of coarse aggregate and water in the volumetric flask remains unchanged, change the mass of the mixture, and obtain the dry mass of the coarse aggregate sample.

[0040] First, calculate the volume of the coarse aggregate sample. The density of water is ρ 1 , and the apparent density of the coarse aggregate sample is ρ 2 . The total volume of the mixture filling the flask is V 总 . The total mass of the mixture of the coarse aggregate sample and water filling the flask is M, and the volume of water in the mixture filling the flask is V 1 . Then, use the following two linear equations with two variables to obtain the volume V of the coarse aggregate sample filling the flask 2 .

[0041] M = V 1 *ρ 1 + V 2 *ρ 2 ; V 总 = V 1 + V 2 .

[0042] S104. Calculate the product of the density and volume of the coarse aggregate sample to obtain the dry mass of the coarse aggregate sample.

[0043] Specifically, substitute the density ρ 2 of the coarse aggregate sample and the volume V 2 into the mass formula m 2 = V 2 *ρ 2 to calculate the dry mass m 2 of the coarse aggregate sample.

[0044] S105. Calculate the moisture content of the coarse aggregate sample based on the water content mass and dry mass of the coarse aggregate sample.

[0045] Specifically, substitute the obtained water content mass m and dry mass m 2 of the coarse aggregate sample into the moisture content formula W = (m - m 2 ) / m 2 to calculate the moisture content W of the coarse aggregate sample.

[0046] In the embodiments of the present application, by accurately measuring the total volume of the volumetric flask, the water-containing mass of the coarse aggregate sample, and the total mass of the mixture formed by the coarse aggregate and water, and combining the apparent density of the coarse aggregate sample and the density of water, the volume and dry mass of the coarse aggregate sample can be accurately calculated, and then the moisture content of the coarse aggregate sample can be accurately obtained, greatly improving the detection efficiency of the moisture content of the coarse aggregate.

[0047] In a possible implementation manner of the embodiments of the present application, the particle size range of the coarse aggregate sample is 4.75 mm - 37.5 mm.

[0048] The embodiments of the present application ensure the particle size uniformity of the sample, facilitating effective volume and mass measurements in the volumetric flask. At the same time, the coarse aggregate within this particle size range can more accurately reflect its water-containing state in actual applications, thereby improving the representativeness and practicality of the moisture content detection results.

[0049] In a possible implementation manner of the embodiments of the present application, the density of water is the standard water density corresponding to the current test temperature in the specification table.

[0050] The embodiments of the present application ensure that under different test conditions, the density value of water can accurately reflect the actual situation, thereby eliminating the density error caused by temperature differences and improving the accuracy and reliability of calculating the volume and moisture content of the coarse aggregate using the water mass and volume.

[0051] In a possible implementation manner of the embodiments of the present application, obtaining the total volume of the volumetric flask includes: Obtaining the mass of the empty volumetric flask, where the volumetric flask includes a glass cover plate; Obtaining the mass of the full volumetric flask after it is filled with water; Determining the mass difference between the full flask mass and the empty flask mass, and calculating the ratio of the mass difference to the density of water as the total volume of the volumetric flask.

[0052] In this embodiment, a volumetric flask with a glass cover plate is selected, and its mass is weighed as the mass of the empty flask m p . Then the volumetric flask is filled with water, and the mass of the volumetric flask filled with water is weighed as the mass of the full flask m w , and the weighed mass is accurate to 0.01 g.

[0053] Using the formula V 总 = (m w - m p ) / ρ 1 , the total volume V 总 of the volumetric flask is calculated, where ρ 1 is the density of water. The total volume of the volumetric flask is also the total volume of the mixture of the coarse aggregate sample and water in the subsequent test process.

[0054] In the embodiments of the present application, the empty bottle mass of the volumetric flask is accurately measured, and the full bottle mass after being filled with water is measured. By using the known density of water, the total volume of the volumetric flask can be accurately calculated. The operation is simple and ensures high-precision volume measurement.

[0055] In a possible implementation manner of the embodiments of the present application, when obtaining the total mass of the coarse aggregate sample and water added when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full, it includes: Obtaining the empty bottle mass of the volumetric flask; Obtaining the final mass of the volumetric flask when the coarse aggregate sample and water are added to the volumetric flask until it is full; Calculating the difference between the final mass and the empty bottle mass as the total mass of the coarse aggregate sample and water.

[0056] In this embodiment, the empty bottle mass of the volumetric flask is m p , and then the volumetric flask is filled with the coarse aggregate sample and water, and the mass of the volumetric flask filled with the mixture of the coarse aggregate sample and water is weighed as the final mass m h .

[0057] Using the formula M = m h -m p to calculate the total mass M of the mixture of the coarse aggregate sample and water.

[0058] In the embodiments of the present application, by accurately measuring the mass change of the volumetric flask before and after adding the coarse aggregate sample and water, the total mass of the coarse aggregate sample and water can be accurately obtained, effectively avoiding the errors that may be introduced by additional measurement steps, and providing accurate data support for subsequent moisture content calculation.

[0059] In a possible implementation manner of the embodiments of the present application, the step of adding the coarse aggregate sample and water to the volumetric flask until it is full includes: Adding a preset amount of water to the volumetric flask, and then adding all the coarse aggregate sample to the volumetric flask; Adding a surfactant to the volumetric flask and rotating the volumetric flask to discharge air; Adding water to the volumetric flask until it is full.

[0060] In this embodiment, the preset amount can be 1 / 3 of the volumetric flask. During the process of adding the coarse aggregate sample to the volumetric flask, it is necessary to prevent the loss of the coarse aggregate sample. After all the coarse aggregate sample is added, a small amount of surfactant is added, the volumetric flask is rotated, and after discharging air, water is added again until it is full.

[0061] In the embodiments of the present application, first add a preset amount of water to the volumetric flask, then add the coarse aggregate sample, and cleverly use the surfactant to reduce bubbles. By rotating the volumetric flask, air is effectively discharged, and finally water is added to full. This series of operations ensures that the coarse aggregate sample is fully wetted in water and there is no obvious bubble interference, thereby improving the measurement accuracy and the reliability of the result.

[0062] In a possible implementation of the embodiment of the present application, during the process of adding the coarse aggregate sample and water to the volumetric flask until it is full, the temperature change of the water does not exceed ±2°C.

[0063] The embodiment of the present application strictly controls the temperature change of the water within ±2°C, effectively avoiding the expansion or contraction of the water volume caused by the temperature change, thereby ensuring that the volume and mass of the water remain constant during the measurement process.

[0064] In a possible implementation of the embodiment of the present application, based on the total volume, total mass, apparent density of the coarse aggregate sample, and density of the water, calculate the volume of the coarse aggregate sample, including: Substitute the total volume, total mass, apparent density of the coarse aggregate sample, and density of the water into the volume formula to obtain the volume of the coarse aggregate sample; The volume formula is: M = ρ 2 *V 2 + (V 总 - V 2 ) ρ 1 ; where, V 总 is the total volume; M is the total mass; ρ 1 is the density of the water; ρ 2 is the apparent density of the coarse aggregate sample; V 2 is the volume of the coarse aggregate sample.

[0065] In this embodiment, M = m 1 + m 2 , m 1 = ρ 1 *V 1 , m 2 = ρ 2 *V 2 , V 总 = V 1 + V 2 , then M = ρ 2 *V 2 + (V 总 - V 2 ) ρ 1 , that is, V 2 = (M 1 - ρ 1 *V 总 ) / (ρ 2 - ρ 1 ).

[0066] In the embodiments of the present application, by substituting the total volume of the volumetric flask, the total mass of the coarse aggregate and water, the apparent density of the coarse aggregate, and the density of water into a specific volume formula, the volume of the coarse aggregate sample can be accurately calculated. This process not only utilizes physical principles but also ensures the accuracy and reliability of the measurement results.

[0067] A possible implementation manner of the embodiments of the present application calculates the moisture content of the coarse aggregate sample based on the wet mass and dry mass of the coarse aggregate sample, including: Substitute the wet mass and dry mass into the moisture content formula to obtain the moisture content of the coarse aggregate sample; The moisture content formula is: W = (m - m 2 ) / m 2 ; where is the moisture content of the coarse aggregate sample; m is the wet mass of the coarse aggregate sample; m 2 is the dry mass of the coarse aggregate sample.

[0068] In the embodiments of the present application, directly substituting the wet mass and dry mass of the coarse aggregate sample into the moisture content calculation formula can quickly and accurately obtain the moisture content of the coarse aggregate. This method is not only easy to operate but also has accurate calculation results.

[0069] The method for detecting the moisture content of the coarse aggregate provided by the embodiments of the present application ensures the test error requirements specified in the current standard, and at the same time greatly shortens the test time. The current standard's rapid moisture content test that used to take several hours is shortened to 15 to 30 minutes, fully achieving the purpose of inspecting the coarse aggregate at any time when it enters the site. It has very good application value, improves the detection time efficiency by more than 95%, and the method is simpler and more convenient than the method in the current standard, facilitating on-site operation, realizing on-site feeding and real-time inspection during the production process, and ensuring the timeliness of receiving materials.

[0070] The above embodiments introduce a method for detecting the moisture content of the coarse aggregate from the perspective of the method process. The following embodiments introduce a device for detecting the moisture content of the coarse aggregate. For details, see the following embodiments.

[0071] The embodiments of the present application provide a remote sensing image band registration device, which may include: an electronic balance, a volumetric flask, and an electronic device; among them, the weighing of the electronic balance is not less than 5000g, and the sensitivity is 0.01g; the volume of the volumetric flask is 1000 mL.

[0072] To ensure data accuracy, the volumetric flask used in the test process and the instrument used in the calculation must be the same container.

[0073] In the embodiments of the present application, an electronic device is provided, as Figure 2 shown, Figure 2The electronic device 200 shown includes: a processor 201 and a memory 203. Among them, the processor 201 and the memory 203 are connected, such as through a bus 202. Optionally, the electronic device 200 may further include a transceiver 204. It should be noted that in practical applications, the transceiver 204 is not limited to one, and the structure of the electronic device 200 does not constitute a limitation to the embodiments of the present application.

[0074] The processor 201 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of the present application. The processor 201 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0075] The bus 202 may include a path for transmitting information between the above components. The bus 202 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus 202 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 2 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0076] The memory 203 can be a ROM (Read Only Memory), or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory), or other types of dynamic storage devices that can store information and instructions. It can also be an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0077] The memory 203 is used to store the application program code for executing the solution of this application, and is controlled by the processor 201 for execution. The processor 201 is used to execute the application program code stored in the memory 203 to implement the content shown in the foregoing embodiments of the method for detecting the moisture content of coarse aggregate.

[0078] Figure 2 The illustrated electronic device is only an example and should not impose any limitations on the functions and usage scope of the embodiments of this application.

[0079] The embodiments of this application provide a computer-readable storage medium with a computer program stored thereon. When the computer program runs on a computer, it enables the computer to execute the content shown in the foregoing embodiments of the method for detecting the moisture content of coarse aggregate.

[0080] It should be understood that although the steps in the flowchart of the accompanying drawings are shown in sequence according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise clearly stated in this article, the execution of these steps has no strict order limitation and can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same moment but can be executed at different moments, and their execution order is not necessarily sequential but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0081] The embodiments of this application provide a computer program product, including a computer program. When the computer program is executed by a processor, it implements the content shown in the foregoing embodiments of the method for detecting the moisture content of coarse aggregate.

[0082] The above are only some embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A method for detecting moisture content of coarse aggregate, characterized in that: include: Obtaining the total volume of the volumetric flask, the water content of the coarse aggregate sample, and the total mass of the coarse aggregate sample and water added when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full; Obtaining the apparent density of the coarse aggregate sample and the density of water; calculating the volume of the coarse aggregate sample based on the total volume, the total mass, the apparent density of the coarse aggregate sample and the density of water; Calculating the product of the density and volume of the coarse aggregate sample to obtain the dry mass of the coarse aggregate sample; The moisture content of the coarse aggregate sample is calculated based on the moisture content and dry mass of the coarse aggregate sample.

2. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The calculating the volume of the coarse aggregate sample based on the total volume, the total mass, the apparent density of the coarse aggregate sample and the density of water comprises: Substituting the total volume, the total mass, the apparent density of the coarse aggregate sample and the density of water into a volume formula, the volume of the coarse aggregate sample is obtained; The volume formula is: M=ρ2*V2+(V 总 -V2)ρ1; Among them, V 总 is the total volume; M is the total mass; ρ1 is the density of water; ρ2 is the apparent density of the coarse aggregate sample; V2 is the volume of the coarse aggregate sample.

3. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The step of calculating the moisture content of the coarse aggregate sample based on the moisture content and dry mass of the coarse aggregate sample comprises: Substituting the water content mass and the dry mass into the moisture content formula to obtain the moisture content of the coarse aggregate sample; The moisture content formula is: W = (m-m2) / m2; Among them, is the moisture content of the coarse aggregate sample; m is the water content of the coarse aggregate sample; m2 is the dry mass of the coarse aggregate sample.

4. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The method of obtaining the total volume of the volumetric flask comprises: Obtaining the empty bottle mass of the volumetric flask, wherein the volumetric flask comprises a glass cover plate; Obtain the full bottle mass of the volumetric flask after it is filled with water; The mass difference between the full bottle mass and the empty bottle mass is determined, and the ratio of the mass difference to the density of water is calculated as the total volume of the volumetric flask.

5. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The method of obtaining the total mass of the coarse aggregate sample and water added when the coarse aggregate sample is placed in the volumetric flask and water is added until the volumetric flask is full includes: Obtaining the empty bottle mass of the volumetric flask; Obtaining the final mass of the volumetric flask when the coarse aggregate sample and water are added to the volumetric flask until the flask is full; The difference between the final mass and the mass of the empty bottle is calculated as the total mass of the coarse aggregate sample and water.

6. The method for detecting moisture content of coarse aggregate according to claim 5, characterized in that: The step of adding the coarse aggregate sample and water to the volumetric flask until the flask is full comprises: Add a preset amount of water into the volumetric flask, and then add all of the coarse aggregate sample into the volumetric flask; Adding a surfactant into the volumetric flask, rotating the volumetric flask to expel air; Add water to the volumetric flask until full.

7. The method for detecting moisture content of coarse aggregate according to claim 5, characterized in that: During the process of adding the coarse aggregate sample and water to the volumetric flask until the flask is full, the temperature of the water does not change by more than ±2°C.

8. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The particle size range of the coarse aggregate sample is 4.75mm-37.5mm.

9. The method for detecting moisture content of coarse aggregate according to claim 1, characterized in that: The water density is the standard water density corresponding to the current test temperature in the specification table.

10. A device for detecting moisture content of coarse aggregate, characterized in that: include: An electronic balance, a volumetric flask and electronic equipment; wherein the electronic balance has a weighing capacity of not less than 5000g and a sensitivity of 0.01g; and the volumetric flask has a capacity of 1000mL; The electronic device comprises: at least one processor; Memory; At least one application, wherein the at least one application is stored in a memory and configured to be executed by at least one processor, and the at least one application is configured to: execute the method for detecting moisture content of coarse aggregate as described in any one of claims 1-9.

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