JP2022167986A - Concrete manufacturing method with use of machine learning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete manufacturing method that can manufacture concrete, which satisfies required quality, with good accuracy.

SOLUTION: A concrete manufacturing method comprises: a step of determining a designed blending quantity of each concrete material per one batch; a first kneading step of charging a primary charge amount, which is smaller than the designed blending quantity, of each concrete material; a step of acquiring, during the first kneading step, first kneading state information that relates to a concrete kneading state during the first kneading step; a step of acquiring, on the basis of the first kneading state information, first property information that relates to a property of concrete kneaded at the first kneading step; a step of correcting, on the basis of the first property information, the designed blending quantity and determining a corrected designed blending quantity for each concrete material; and a second kneading step of charging a secondary charge quantity of each concrete material, which is determined on the basis of the corrected designed blending quantity and the primary charge quantity.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present disclosure relates to a method for producing concrete by kneading concrete materials including cement, water and aggregates.

The main ingredients of concrete are cement, water, fine aggregate and coarse aggregate. In addition, admixtures are sometimes mixed with concrete for the purpose of improving strength and durability, adjusting fluidity and setting speed, and the like. Concrete (fresh concrete) is produced by kneading concrete materials such as cement with a mixer. Then, quality inspection is performed after manufacturing to confirm whether the manufactured concrete satisfies the required quality. Concrete properties confirmed by quality inspection include 28-day age strength, which is an index for the strength of concrete after hardening, slump value, which is an index for concrete fluidity, and indexes for concrete strength, durability, and fluidity. and the chloride ion concentration, which is an index of durability against salt damage.

The mix of concrete materials is determined so that the concrete meets the desired quality requirements. More specifically, mixing calculations are performed based on a mixing design model (mixing design standard) created in advance at a concrete manufacturing factory, and the design mixing amount, which is the mixing amount per batch of each concrete material, is calculated. It is determined. In addition, as described in Patent Document 1, the design compounding amount may be corrected according to the actual measurement value of the surface water content of the fine aggregate.

In Patent Document 1, the surface water content of sand is measured with a moisture meter while sand is being weighed, and the measured surface water content is used to correct and measure the standard blending values of the sand and kneading water weighed in the batch. , discloses feeding a metered amount of material into a mixer. Further, Patent Literature 1 discloses that by detecting the load power of a mixer that mixes concrete, the actual mixing water amount relative to the mixing water amount of the standard mixture is estimated, and the correction water amount is added.

JP-A-8-332625

However, in the method described in Patent Document 1 described above, although an amount of concrete equivalent to one batch is produced, the quality of the produced concrete is inspected and the quality of the concrete is confirmed. There is a problem that it is not known whether to satisfy In addition, if the quality inspection reveals that the concrete does not meet the required quality, the manufactured concrete must be discarded and the concrete must be manufactured again. It takes. At this time, since concrete, which is an industrial waste, is discarded, there is a risk of causing an increase in the environmental load. In addition, since the properties of the concrete cannot be adjusted during the mixing of the concrete, the concrete may be produced several times until good results are obtained.

In view of the circumstances described above, an object of at least one embodiment of the present invention is to provide a concrete manufacturing method capable of accurately manufacturing concrete that satisfies the required quality.

(1) A method for producing concrete according to at least one embodiment of the present invention comprises:
A concrete manufacturing method for manufacturing concrete by kneading a concrete material containing cement, water and aggregate,
A mix design step of determining a design mix amount per batch for each of the concrete materials;
A first kneading step of charging a primary charging amount, which is a smaller charging amount than the design mixing amount, into a mixer for each of the concrete materials;
a first kneading state information acquiring step of acquiring, during the first kneading step, first kneading state information that is information relating to the kneading state of concrete during the first kneading step;
a property information acquiring step of acquiring first property information, which is information relating to properties of the concrete kneaded in the first kneading step, based on the first kneading state information;
a corrected design mixture amount determination step of determining a corrected design mixture amount by correcting the design mixture amount for each of the concrete materials based on the first property information;
and a second kneading step of charging each of the concrete materials into the mixer in a secondary charging amount determined based on the corrected design mixing amount and the primary charging amount.

According to the method (1) above, the concrete manufacturing method includes a mixing design step of determining the design mixing amount per batch for each concrete material, and a smaller amount than the design mixing amount for each concrete material. a first kneading step in which a certain primary input amount is introduced into the mixer; a first kneading state information acquiring step of acquiring first kneading state information during the first kneading step; and a first property information acquisition step of acquiring property information. Therefore, in the first kneading step, an amount (primary input amount) of each concrete material smaller than the amount corresponding to one batch is put into the mixer, and the put-in concrete materials are kneaded by the mixer. At this time, the first property information, which is information about properties of the concrete being kneaded in the first kneading step, can be obtained by the first kneading state information obtaining step and the first property information obtaining step.

Then, the method for manufacturing concrete comprises a step of determining a corrected design mixture amount obtained by correcting the design mixture amount based on the first property information for each of the concrete materials; and a second kneading step of charging an amount (secondary input amount) determined based on the blending amount and the primary input amount into the mixer. Therefore, in the corrected design mixing amount determination step, for each concrete material, based on the above-described first property information, a corrected design mixing amount that is a mixing amount per batch that is more appropriate than the above-described design mixing amount is determined. can do. Also, in the second kneading step, the secondary input amount of each of the concrete materials to be added to the mixer is determined based on the corrected design mixing amount and the primary input amount. Therefore, in the method for manufacturing concrete, it is possible to accurately manufacture concrete that satisfies the required quality by setting the amount of the concrete material to be added to the mixer to an appropriate amount.

In addition, it is possible to adjust the properties of concrete during mixing by adding additional concrete material to the mixer based on the corrected design mixing amount and the primary input amount, so the quality inspection results are not good. can be suppressed, and the labor, time, and cost required for the production of concrete can be reduced. In addition, since the properties of the concrete can be adjusted during kneading, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

(2) In some embodiments, in the method of (1) above,
In the first property information acquiring step, the first property information is acquired from the first kneading state information based on association information that associates the first kneading state information with property information that is information relating to properties of the concrete. be done.

According to the method (2) above, the association information that associates the first kneading state information and the property information is information representing the relationship between the first kneading state information and the property information. Therefore, the first property information can be accurately obtained from the first kneading state information based on the association information.

(3) In some embodiments, in the method of (2) above,
The association information is generated by machine learning using the first kneading state information and the property information as learning data.

According to the method (3) above, the first kneading state information and the property information are used as learning data, and by accumulating the learning data, the accuracy of the relationship between the first kneading state information and the property information in the association information can be improved, the first property information can be accurately estimated from the first kneading state information based on the above-described association information.

(4) In some embodiments, in the methods (1) to (3) above,
The first kneading state information includes a photographed image of concrete in the first kneading step photographed by an imaging device.

According to the method (4) above, the first kneading state information includes the photographed image of the concrete in the first kneading step. Here, the photographed image of concrete includes information on properties of concrete such as fluidity, strength, and air content of concrete. Therefore, by including the photographed image of the concrete in the first kneading state information, the first property information can be accurately obtained from the first kneading state information.

(5) In some embodiments, in the methods (1) to (4) above,
a first weighing step of weighing each of the concrete materials to be kneaded in the first kneading step prior to the first kneading step;
a first aggregate information acquiring step of acquiring first aggregate information, which is information about the aggregate in the first weighing step;
and a primary charging amount correction step of correcting the primary charging amount based on the first aggregate information for each of the concrete materials.

According to the method (5) above, in the first aggregate information acquisition step, it is possible to acquire the first aggregate information, which is information about the aggregates in the first weighing step prior to the first kneading step. The first aggregate information includes information about properties of concrete such as fluidity, strength, and air content of concrete. For example, the surface water content of aggregates (fine aggregates) includes information on concrete properties such as concrete fluidity and air content. In addition, the particle size distribution of the aggregate (coarse aggregate) contains information on concrete properties such as concrete fluidity and strength. In addition, since the first aggregate information is information about the aggregates actually put in the first kneading step, the amount of the aggregate put in the first kneading step is calculated based on the first aggregate information. By correcting the input amount, the primary input amount can be adjusted to an appropriate amount. Therefore, it is possible to accurately manufacture concrete that satisfies the required quality.

(6) In some embodiments, in the methods (1) to (5) above,
a second weighing step of weighing each of the concrete materials to be newly kneaded in the second kneading step prior to the second kneading step;
a second aggregate information acquisition step of acquiring second aggregate information, which is information about the aggregate in the second weighing step;
and a secondary charge amount correction step of correcting the secondary charge amount based on the second aggregate information for each of the concrete materials.

According to the method (6) above, in the second aggregate information obtaining step, it is possible to obtain the second aggregate information, which is the information about the aggregate in the second weighing step prior to the second kneading step. The second aggregate information, like the first aggregate information, includes information on properties of concrete such as fluidity, strength, and air content of concrete. Further, the second aggregate information is the information of the aggregates actually put in the second kneading step, so based on the second aggregate information, the amount of the aggregate put in the second kneading step is a secondary By correcting the input amount, the secondary input amount can be adjusted to an appropriate amount. Therefore, it is possible to accurately manufacture concrete that satisfies the required quality.

(7) In some embodiments, in the method of (5) or (6) above,
The information about the aggregate includes at least one of the surface water content of the aggregate and the particle size distribution of the aggregate.
As described above, the surface water content of aggregates (fine aggregates) includes information on concrete properties such as concrete fluidity and air content. In addition, the particle size distribution of the aggregate (coarse aggregate) contains information on concrete properties such as concrete fluidity and strength. According to the method (7) above, the surface water content and particle size distribution of the aggregate are included as information on the aggregate, so that the primary input amount and the secondary input amount are adjusted to correspond to the properties of the concrete. Therefore, it is possible to produce concrete that satisfies the required quality with high precision.

(8) In some embodiments, in the methods (1) to (7) above,
The primary input amount is 20% or more and 80% or less of the design compounding amount.
According to the above method (8), the secondary input amount is about 20 to 80% of the design mixing amount. , the properties of the concrete mixed in the first mixing step can be adjusted over a wide range. Therefore, it is possible to accurately manufacture concrete that satisfies the required quality.

(9) In some embodiments, in the methods (1) to (8) above,
a second kneading state information acquiring step of acquiring, during the second kneading step, second kneading state information that is information relating to the kneading state of the concrete during the second kneading step;
a second property information acquiring step of acquiring second property information, which is information relating to properties of the concrete kneaded in the second kneading step, based on the second kneading state information;
A kneading time determination step of determining the kneading time in the second kneading step based on the second property information.

According to the method (9) above, the second property information, which is information about the properties of the concrete being mixed in the second kneading step, can be obtained by the second kneading state information obtaining step and the second property information obtaining step. . By determining the kneading time in the second kneading step based on the second property information, the kneading time can be set to an appropriate time according to the required properties of the concrete. well manufacturable.

In addition, by determining the kneading time in the second kneading step based on the second property information, it is possible to adjust the properties of the concrete during the second kneading step, so that the quality inspection results are not good. can be suppressed, and the labor, time, and cost required for the production of concrete can be reduced. In addition, since the properties of the concrete can be adjusted during the second kneading step, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

(10) In some embodiments, in the methods (1) to (8) above,
a second kneading state information acquiring step of acquiring, during the second kneading step, second kneading state information that is information relating to the kneading state of the concrete during the second kneading step;
a second property information acquiring step of acquiring second property information, which is information relating to properties of the concrete kneaded in the second kneading step, based on the second kneading state information;
a quality determination step of determining the quality of the concrete kneaded in the second kneading step based on the second property information;
a mixed material adding step of adding a mixed material to the concrete mixed in the second mixing step when the quality determining step determines that the concrete mixed in the second mixing step does not satisfy the required quality; , is further provided.

According to the method (10) above, in the quality determination step, it is possible to determine whether the concrete kneaded in the second kneading step satisfies the required quality based on the second property information. Further, in the admixture addition step, when it is determined in the quality determination step that the concrete kneaded in the second kneading step does not satisfy the required quality, the admixture is added so that the concrete meets the required quality. Since the properties of the concrete can be adjusted during the second kneading step, it is possible to produce concrete that satisfies the required quality with high accuracy. In addition, since it is possible to adjust the properties of the concrete during the second kneading step, it is possible to suppress unsatisfactory results in the quality inspection, which in turn reduces the labor, time, and costs required to manufacture concrete. be able to. In addition, since the properties of the concrete can be adjusted during the second kneading step, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

According to at least one embodiment of the present invention, there is provided a concrete manufacturing method capable of accurately manufacturing concrete that satisfies required quality.

1 is a flow diagram of a concrete manufacturing method according to an embodiment of the present invention; FIG. 1 is a schematic configuration diagram schematically showing the configuration of a manufacturing system for carrying out a concrete manufacturing method according to an embodiment of the present invention; FIG. 1 is a schematic block diagram schematically showing an example of an electrical configuration of a manufacturing system for carrying out a concrete manufacturing method according to an embodiment of the present invention; FIG. FIG. 4A is an explanatory diagram for explaining the flow of data in each step of the concrete manufacturing method according to the present invention, FIG. ) is a diagram showing the flow of data in the first kneading step. FIG. 5A is an explanatory diagram for explaining the flow of data in each step of the concrete manufacturing method according to the present invention, FIG. FIG. 5(b) is a diagram showing the data flow in the corrected design compounding amount determination step, and FIG. 5(c) is a diagram showing the data flow in the second kneading step. 4 is a graph for explaining a property information acquisition step in the concrete manufacturing method according to the present invention, and is a graph showing an example of the relationship between kneading state information and property information. FIG. 4 is a flow diagram of a concrete manufacturing method according to another embodiment of the present invention, and is a flow diagram including a first weighing step, a primary input amount correction step, and the like. FIG. 4 is a flow diagram of a method for manufacturing concrete according to another embodiment of the present invention, and is a flow diagram including a second weighing step, a secondary input amount correction step, and the like. FIG. 4 is a flow diagram of a method for manufacturing concrete according to another embodiment of the present invention, and is a flow diagram including a kneading time determination step and the like. FIG. 4 is a flow diagram of a method for manufacturing concrete according to another embodiment of the present invention, and is a flow diagram including a quality determination step and the like.

Several embodiments of the present invention will now be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, and are merely illustrative examples. do not have.
For example, expressions denoting relative or absolute arrangements such as "in a direction", "along a direction", "parallel", "perpendicular", "center", "concentric" or "coaxial" are strictly not only represents such an arrangement, but also represents a state of relative displacement with a tolerance or an angle or distance to the extent that the same function can be obtained.
For example, expressions such as "identical", "equal", and "homogeneous", which express that things are in the same state, not only express the state of being strictly equal, but also have tolerances or differences to the extent that the same function can be obtained. It shall also represent the existing state.
For example, expressions that express shapes such as squares and cylinders do not only represent shapes such as squares and cylinders in a geometrically strict sense, but also include irregularities and chamfers to the extent that the same effect can be obtained. The shape including the part etc. shall also be represented.
On the other hand, the expressions "comprising", "comprising", "having", "including", or "having" one component are not exclusive expressions excluding the presence of other components.
In addition, the same code|symbol may be attached|subjected about the same structure and description may be abbreviate|omitted.

FIG. 1 is a flow diagram of a concrete manufacturing method according to one embodiment of the present invention. As shown in FIG. 1, a concrete manufacturing method 100 is a method for manufacturing concrete by kneading concrete materials including cement, water, coarse aggregate (aggregate) and fine aggregate (aggregate). There is a mixture design step S101, a first kneading step S102, a first kneading state information acquisition step S103, a first property information acquisition step S104, a corrected design mixture amount determination step S105, and a second kneading step S106. , is equipped with

FIG. 2 is a schematic configuration diagram schematically showing the configuration of a manufacturing system for carrying out the concrete manufacturing method according to one embodiment of the present invention. FIG. 3 is a schematic block diagram schematically showing an example of an electrical configuration of a manufacturing system for carrying out a concrete manufacturing method according to an embodiment of the present invention. As shown in FIG. 2 , the concrete manufacturing system 1 includes a concrete manufacturing device 2 including a mixer 5 . The concrete manufacturing apparatus 2, as shown in FIG. , and a mixer 5 capable of kneading the concrete material sent from the scale 4. The weighing scale 4 has an openable/closable valve and the like, and is configured to be able to adjust the input amount, which is the amount of the concrete material input to the mixer 5 .

As shown in FIG. 2, the concrete manufacturing apparatus 2 includes a plurality of storage containers 3 and weighing scales 4 that are different for each type of concrete material. The storage container 3 includes a cement storage container 31 capable of storing cement, a water storage container 32 capable of storing water, a coarse aggregate storage container 33 capable of storing coarse aggregate, and a fine aggregate storing container 33 capable of storing fine aggregate. and an aggregate storage container 34 . In addition, the weighers 4 include a cement weigher 41 capable of weighing cement, a water weigher 42 capable of weighing water, a coarse aggregate weigher 43 capable of weighing coarse aggregate, and a weigher capable of weighing fine aggregate. and a fine aggregate weigher 44 . Note that the concrete manufacturing apparatus 2 may include a plurality of storage containers 3 and weighing scales 4 that differ for each type of concrete material (for example, each type of cement). Further, the weigher 4 can store aggregates in which coarse aggregates and fine aggregates are mixed in place of the coarse aggregate weigher 43 and the fine aggregate weigher 44. may include an aggregate scale capable of adjusting the

The mixer 5 (concrete mixer) includes, as shown in FIG. and a drive source 53 including

As shown in Figure 2, each of the concrete materials is passed from a storage container 3 to a scale 4 for weighing. Then, each of the concrete materials weighed by the weigher 4 is put into the mixer 5 and kneaded by the stirring blades 52 to produce concrete. The manufactured concrete is subjected to a property test (quality inspection) to confirm the properties of the concrete, and it is confirmed whether or not the required quality is satisfied.

As shown in FIG. 2, the concrete manufacturing system 1 is a mixing system capable of acquiring mixing state information (mixing state information IK, second mixing state information IK2) that is information about the mixing state of concrete being mixed by a mixer 5. A state information acquisition device 6, a material information acquisition device 7 capable of acquiring material information IM that is information about concrete materials, a first information processing device 8 capable of controlling the concrete manufacturing device 2, and a second information processing device 9. , is further provided. As shown in FIG. 3 , the first information processing device 8 is electrically connected to the concrete manufacturing device 2 , the kneading state information acquisition device 6 , the material information acquisition device 7 and the second information processing device 9 . “Electrically connected” means not only physical connection by wire but also communication by radio, and means that signals, data, etc. can be transmitted and received between connected devices. .

The first information processing device 8 includes an input/output device 81 (input/output interface, communication device), a storage device 82 (ROM, RAM), a display device 83 (display), and an arithmetic device 84, as shown in FIG. Although it is composed of a microcomputer, general configuration and control will be omitted as appropriate. The input/output device 81 , storage device 82 , display device 83 and arithmetic device 84 of the first information processing device 8 are electrically connected to the bus 80 .

The input/output device 81 of the first information processing device 8 receives various information from each component (such as the mixer 5) used in the concrete manufacturing system 1, and outputs various information based on the calculation result and the like to each of the above-described Output to a component. Also, the input/output device 81 includes a keyboard, a mouse, a wireless communication device, and the like. The storage device 82 is configured to be able to store various types of input information, various programs required for control execution, calculation results, and the like. The arithmetic device 84 performs arithmetic processing based on the various information described above. The display device 83 displays information such as input various information and the result of calculation by the calculation device 84 described above.

The first information processing device 8 further includes a compounding amount determination device 86 , a property information estimation device 87 , an association information creation device 88 , and an image processing device 89 . The compounding amount determination device 86 , property information estimation device 87 , association information creation device 88 and image processing device 89 are electrically connected to the bus 80 . Each of the compounding amount determining device 86, the property information estimating device 87, the association information creating device 88, and the image processing device 89 may be a program stored in the storage device 82 and operated by the arithmetic device 84.

Similarly to the first information processing device 8, the second information processing device 9 (data server) is composed of a microcomputer including a storage device 91, an input/output device (not shown), and an arithmetic device (not shown). , general configuration and control are omitted as appropriate. As shown in FIG. 3, the second information processing device 9 stores target quality TQ, mixing information IF, kneading state information IK (first kneading state information IK1, second kneading state information IK2), material information IM (second 1 aggregate information IA1, second aggregate information IA2), property information IP (first property information IP1, second property information IP2), association information IR (first association information IR1, second association information IR2), and mix design The model MD and the like are stored. Mixing information IF, kneading state information IK, material information IM, and property information IP are accumulated in the storage device 91 by repeating the production of concrete. and the mix design model MD are updated accordingly.

4 and 5 are explanatory diagrams for explaining the flow of data in each step of the concrete manufacturing method according to the present invention. FIG. 4(a) is a diagram showing the flow of data in the mixing design step, and FIG. 4(b) is a diagram showing the flow of data in the first kneading step. Further, FIG. 5(a) is a diagram showing the flow of data in the property information acquisition step, FIG. 5(b) is a diagram showing the flow of data in the corrected design compounding amount determination step, and FIG. ) is a diagram showing the flow of data in the second kneading step.

In the mixing design step S101, a design mixing amount QD per batch is determined for each concrete material. The design compounding amount QD is the amount of concrete material required to produce one batch of concrete that satisfies the desired quality requirements. As shown in FIG. 4(a), the designed blending amount QD is determined by the blending amount determination device 86 based on the target quality TQ. The compounding amount determination device 86 is configured to be able to execute compounding design based on the compounding design model MD created in advance and stored in the storage device 91. By performing compounding design based on the target quality TQ, the design Determine the compounding quantity QD. Here, the target quality TQ is information about the target quality of the concrete, and includes a target strength index TS, which is an index regarding the target strength, and a target fluidity index TF, which is an index regarding the target fluidity. there is The target quality TQ is input and stored in the storage device 91 before the mixing design step S101. In addition, QD1 in FIG. 4(a) is the designed amount of cement, QD2 is the designed amount of water, QD3 is the designed amount of coarse aggregate, and QD4 is the amount of fine aggregate. This is the designed blending amount.

In the first kneading step S<b>102 , a primary input amount QP, which is a smaller input amount than the design mixing amount QD, is input to the mixer 5 for each of the concrete materials. The charged concrete material is kneaded by the mixer 5 (primary kneading). Therefore, the primary input amount QP is required to be an amount that allows the concrete material to be mixed and kneaded by the mixer 5 when it is input to the mixer 5 . In the first kneading step S102, since the entire design compounding amount QD is not introduced, in the second kneading step S106, it is possible to additionally introduce each of the concrete materials. As shown in FIG. 4B, the primary input amount QP of each concrete material is determined by the computing device 84 to be smaller than the design mixing amount QD of each concrete material. For example, the primary input amount QP is determined to be an amount corresponding to a predetermined ratio with respect to the design compounding amount QD. QP1 in FIG. 4(b) is the primary input amount of cement that is smaller than the design blending amount QD1, QP2 is the primary input amount of water that is smaller than the design blending amount QD2, and QP3 is QP4 is the primary input amount of coarse aggregate that is smaller than the design compounding amount QD3, and the primary input amount of fine aggregate that is smaller than the design compounding amount QD4.

In the first kneading state information acquisition step S103, the first kneading state information IK1 is acquired during the first kneading step S102. Here, the first kneading state information IK1 is information (kneading state information) regarding the kneading state of concrete in the first kneading step S102, and is acquired by the kneading state information acquisition device 6. FIG.

The kneading state information acquiring device 6 includes a first photographing device 61 capable of photographing the concrete being kneaded by the mixer 5, as shown in FIG. An image of the concrete (photographed image CI) during the first kneading step S102 is photographed by the first photographing device 61 . The image processing device 89 (see FIG. 2) provided in the first information processing device 8 can acquire information IC such as the shape and behavior of concrete by performing image processing such as binarization processing and edge detection on the captured image CI. is configured to The photographed image CI and the information IC acquired from the photographed image CI include information representing the flow state of the concrete being kneaded. Contains information about Further, the first kneading state information IK1 includes the photographed image CI and the information IC obtained from the photographed image CI.

In the first property information acquisition step S104, the first property information IP1 is acquired based on the first kneading state information IK1. The first property information IP1 is information (property information IP) about the property of the concrete kneaded in the first kneading step S102, and includes a strength index value that is an index regarding the strength of the concrete and a flow rate that is an index regarding the fluidity of the concrete. contains gender index values. As shown in FIG. 5(a), the first property information IP1 is estimated by the property information estimation device 87 based on the first kneading state information IK1. The property information estimation device 87 estimates the first property information IP1 from the first kneading state information IK1 based on the first association information IR1 that associates the first kneading state information IK1 and the property information IP in advance. Here, the property information IP includes at least one of a strength index value VI, which is an index regarding the strength of concrete, and a fluidity index value VF, which is an index regarding the fluidity of the concrete. The property information IP includes measured values of the strength index value VI and the fluidity index value VF obtained by quality inspection (property test) such as strength test and slump test. The strength index value VI corresponds to the target strength index TS, and includes at least one of the 7-day age compressive strength and the 28-day age compressive strength obtained by the compressive strength test. The fluidity index value VF corresponds to the target fluidity index TF, and includes at least one of a slump value and a slump flow value obtained in a slump test or a slump flow test. The first association information IR1 includes formulas, graphs, tables, etc. that indicate the correlation between the kneading state information IK and the property information IP. Further, the association information creation device 88 updates the first association information IR1 each time the kneading state information IK and the property information IP are added.

FIG. 6 is a graph for explaining the property information acquisition step in the concrete manufacturing method according to the present invention, and is a graph showing an example of the relationship between the kneading state information and the property information. The horizontal axis in FIG. 6 is the information IC obtained from the photographed image CI, and the vertical axis is VI, which is an index relating to the strength of concrete. Also, IC2 and IC3 in FIG. 6 are information obtained from the photographed image CI, and VI2 and VI3 perform a strength test (property inspection) on each of the concrete from which the information IC2 and IC3 are obtained after the concrete is manufactured. It is a strength index value actually measured by Based on the information IC2, IC3 and the intensity index values VI2, VI3, the association information creation device 88 associates the information IC obtained from the captured image CI with the intensity index value VI as indicated by the regression line in FIG. The first association information IR1 is created. The property information estimation device 87 estimates the strength index value VI1 of the concrete being mixed from the information IC1 acquired from the photographed image CI of the concrete being mixed by the mixer 5 based on the first association information IR1. Note that the intensity index value VI1 may be estimated by performing pattern matching on the information acquired from the photographed image CI of concrete.

The association information IR (first association information IR1, second association information IR2) is used as a basis when there are multiple pieces of information (material information IM, kneading state information IK) that serve as the basis for estimating the property information IP. Information indicating the strength of the correlation between the information and the property information IP may be included, and based on the strength of the correlation, the property information estimation device 87 selects from at least one of a plurality of base information Property information IP may be estimated.

In the corrected design mixing amount determination step S105, for each concrete material, based on the first property information IP1, the design mixing amount QD is corrected to determine the corrected design mixing amount QM. The modified design mixing amount QM is the amount of concrete material required to produce one batch of concrete that satisfies the desired quality requirements. As shown in FIG. 5(b), the corrected design blending amount QM is determined by the blending amount determination device 86 based on the target quality TQ and the first property information IP1. The blending amount determination device 86 determines the corrected design blending amount QM by designing the blending based on the target quality TQ and the first property information IP1. The blending amount determination device 86 may correct the design blending amount QD so that the first property information IP1 approaches the target quality TQ, or may determine the modified design blending amount QM based only on the first property information IP1. good. In addition, QM1 in FIG. 5(b) is the corrected design mixing amount of cement, QM2 is the corrected design mixing amount of water, QM3 is the corrected design mixing amount of coarse aggregate, and QM4 is the fine This is the design blending amount of aggregate. Each of the modified design compounding amounts QM may be increased or decreased from each of the design compounding amounts QD.

In the second kneading step S106, for each concrete material, the secondary input amount QS is determined based on the corrected design mixing amount QM and the primary input amount QP (step S106A), and the determined secondary input amount QS Concrete materials are put into the mixer 5 and kneaded (secondary kneading, step S106B). As shown in FIG. 5(c), QS1 is the secondary input amount of cement, QS2 is the secondary input amount of water, QS3 is the secondary input amount of coarse aggregate, and QS4 is the secondary input amount of fine aggregate. As shown in FIG. 5(c), for each concrete material, the arithmetic device 84 subtracts the primary charging amount QP from the corrected design mixing amount QM to calculate the secondary charging amount QS. For example, the secondary input amount QS1 of cement is calculated by subtracting the primary input amount QP1 from the corrected design blending amount QM1 of cement.

As described above, the concrete manufacturing method 100 according to some embodiments includes, as shown in FIG. It includes an information acquisition step S103, the above-described first property information acquisition step S104, the above-described corrected design compounding amount determination step S105, and the above-described second kneading step S106.

According to the above method, the concrete manufacturing method 100 includes a mixing design step S101 of determining a design mixing amount QD per batch for each of the concrete materials, and A first kneading step S102 in which the primary input amount QP is introduced into the mixer 5, and a first kneading step S102 in which the first kneading state information IK1 of the concrete in the first kneading step S102 is obtained. a state information obtaining step S103; and a first property information obtaining step S104 for obtaining, from the first kneading state information IK1, first property information IP1, which is information about the property of the concrete kneaded in the first kneading step S102. ing. Therefore, in the first kneading step S102, for each concrete material, an amount (primary input amount QP) smaller than the amount corresponding to one batch is input to the mixer 5, and the input concrete material is kneaded by the mixer 5. be done. At this time, the first property information IP1, which is information about the properties of the concrete being mixed in the first kneading step S102, can be obtained by the first kneading state information obtaining step S103 and the first property information obtaining step S104.

Then, the concrete manufacturing method 100 includes a corrected design mixing amount determination step S105 for determining a corrected design mixing amount QM obtained by correcting the design mixing amount QD based on the first property information IP1 for each of the concrete materials; For each of them, a second kneading step S106 of charging the mixer 5 with an amount (secondary charging amount QS) determined based on the corrected design mixing amount QM and the primary charging amount QP is further provided. Therefore, in the corrected design mixing amount determination step S105, for each of the concrete materials, based on the above-described first property information IP1, the corrected design mixing amount, which is a mixing amount per batch that is more appropriate than the above-described design mixing amount QD, is determined. A quantity QM can be determined. Further, in the second kneading step S106, the secondary charging amount QS of each concrete material to be additionally charged into the mixer 5 is determined based on the corrected design mixing amount QM and the primary charging amount QP. Therefore, the concrete manufacturing method 100 can accurately manufacture concrete that satisfies the required quality by adjusting the amount of the concrete material additionally charged into the mixer 5 to an appropriate amount.

In addition, by adding additional concrete material to the mixer 5 based on the corrected design mixing amount QM and the primary input amount QP, it is possible to adjust the properties of the concrete during mixing, so the result is not good in the quality inspection. It is possible to suppress the deterioration of the concrete, thereby reducing the labor, time, and cost required for the production of concrete. In addition, since the properties of the concrete can be adjusted during kneading, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

As described above, in some embodiments, in the first property information acquisition step S104 described above, based on the first association information IR1 (association information IR) that associates the first kneading state information IK1 and the property information IP , the first property information IP1 is acquired from the first kneading state information IK1. In this case, the first association information IR1 that associates the first kneading state information IK1 and the property information IP is information representing the relationship between the first kneading state information IK1 and the property information IP. Therefore, the first property information IP1 can be accurately obtained from the first kneading state information IK1 based on the first association information IR1.

In some embodiments, the above-described first association information IR1 is generated by machine learning using the above-described first kneading state information IK1 and property information IP as learning data. In this case, by using the first kneading state information IK1 and the property information IP as learning data and accumulating the learning data, the relationship between the first kneading state information IK1 and the property information IP in the first association information IR1 can be improved, the first property information IP1 can be accurately estimated from the first kneading state information IK1 based on the above-described first association information IR1.

In some other embodiments, the above-described first association information IR1 is generated by multivariate analysis using the above-described first kneading state information IK1 as an explanatory variable and the above-described property information IP as an objective variable. there is At least one of principal component regression, cluster analysis, discriminant analysis, SIMCA, multiple regression analysis, PLS regression analysis, PLS discrimination, SVM regression, SVM discrimination, RF regression, and RF discrimination is performed as multivariate analysis. In this case, by performing multivariate analysis using the first kneading state information IK1 and the property information IP as variables for multivariate analysis, the relationship between the first kneading state information IK1 and the property information IP in the first association information IR1 is Since the accuracy of the relationship can be improved, the first property information IP1 can be accurately estimated from the first kneading state information IK1 based on the above-described first association information IR1.

As described above, in some embodiments, the first kneading state information IK1 includes the photographed image CI of the concrete in the first kneading step S102 photographed by the first photographing device 61 . In this case, the first kneading state information IK1 includes the captured image CI of the concrete in the first kneading step S102. Here, the photographed image CI of the concrete includes information on properties of the concrete such as fluidity, strength, and air content of the concrete. Therefore, by including the photographed image CI of concrete in the first kneading state information IK1, the first property information IP1 can be accurately obtained from the first kneading state information IK1.

In some other embodiments, the kneading state information acquisition device 6 described above includes an ammeter 62 capable of measuring the current value of the mixer 5 during kneading, as shown in FIG. The ammeter 62 acquires the current value of the mixer 5 during the first kneading step S102. The current value of the mixer 5 during kneading includes information on properties of concrete such as fluidity (slump value) of the concrete kneaded in the first kneading step S102. Therefore, by including the current value of the mixer 5 during kneading in the kneading state information IK, it is possible to accurately estimate the properties of the concrete. The kneading state information acquisition device 6 may include a torque detector capable of detecting the torque value of the mixer 5 during kneading instead of the ammeter 62, and the kneading state information IK is obtained by the torque detector. The acquired torque value of the mixer 5 during kneading may be included.

Note that the kneading state information acquisition device 6 described above may include both the first imaging device 61 and the ammeter 62, or may include a thermometer capable of detecting the temperature of the concrete being kneaded and the distortion of the concrete being kneaded. A device (measuring device) other than the first imaging device 61 and the ammeter 62, such as a strain gauge capable of detecting , may be further included. The kneading state information IK may also include the temperature and strain of the concrete being kneaded. Since the kneading state information IK includes various types of information, it is possible to improve the accuracy of estimating properties of concrete.

FIG. 7 is a flowchart of a concrete manufacturing method according to another embodiment of the present invention, and is a flowchart including a first weighing step, a primary input amount correction step, and the like. In some embodiments, the concrete manufacturing method 100 described above includes a first weighing step S201, a first aggregate information obtaining step S202, a primary input amount correcting step S203, as shown in FIG. is further provided.

In the first weighing step S201, before the first kneading step S102, each concrete material kneaded in the first kneading step S102 is weighed. More specifically, in the first weighing step S201, as shown in FIG. A quantity QP is weighed.

In the first aggregate information acquisition step S202, the first aggregate information IA1 is acquired during the first measurement step S201. Here, the first aggregate information IA1 is information about the aggregate in the first weighing step S201, and is acquired by the material information acquiring device 7. FIG. The material information acquisition device 7 includes a second photographing device 71 capable of photographing the aggregate sent from the storage container 3 to the scale 4, as shown in FIG. An image of at least one of the fine aggregate and the coarse aggregate is captured by the second imaging device 71 during the first weighing step S201. The first aggregate information IA1 includes aggregate information in the first weighing step S201 acquired from the captured image captured by the second imaging device 71. The information includes the strength and fluidity of concrete. and information on concrete properties such as air content.

The first aggregate information IA1 includes at least one of the surface water content of the aggregate (fine aggregate) and the particle size distribution of the aggregate (coarse aggregate). The surface water content of aggregates (fine aggregates) is a parameter related to the ratio of water in concrete materials, which affects the fluidity of concrete, and the water-cement ratio of concrete, which affects the strength and air content of concrete. . In other words, the surface water content of aggregates (fine aggregates) includes information on properties of concrete such as strength, fluidity, and air content of concrete. In addition, when the particle size distribution of the aggregate is large, the fine aggregate enters between the coarse aggregates, resulting in a denser state than when the aggregate particle size distribution is small. growing. Therefore, when the particle size distribution of the aggregate is large, the strength of the concrete can be increased even if the amounts of cement and water are small compared to when the particle size distribution of the aggregate is small. In other words, the particle size distribution of the aggregate contains information on concrete properties such as concrete strength and fluidity.

In the primary charging amount correction step S203, the primary charging amount QP is corrected for each concrete material based on the first aggregate information IA1. The corrected primary input amount QP is adjusted to the target quality TQ by performing the mixing design again based on the first aggregate information IA1 by the above-described mixing amount determination device 86, so that the corrected primary input amount QP is A QP is determined. Each of the corrected primary charging amounts QP may be increased or decreased from the primary charging amount QP before correction. Since the primary charging amount correction step S203 is performed during the first weighing step S201, in the above-described first weighing step S201, for each of the concrete materials, the primary charging amount corrected in the primary charging amount correcting step S203 A quantity QP is weighed.

According to the above method, in the first aggregate information acquisition step S202, it is possible to acquire the first aggregate information IA1, which is information about the aggregates in the first weighing step S201 prior to the first kneading step S102. . The first aggregate information IA1 includes information about properties of concrete such as strength, fluidity, and air content of concrete. For example, the surface water content of aggregates (fine aggregates) includes information on concrete properties such as strength, fluidity, and air content. In addition, the particle size distribution of aggregates contains information on concrete properties such as concrete strength and fluidity. In addition, since the first aggregate information IA1 is information about the aggregate actually put in the first kneading step S102, the amount of the aggregate put in the first kneading step S102 is based on the first aggregate information IA1. By correcting the primary input amount QP, the primary input amount QP can be adjusted to an appropriate amount. Therefore, according to the above method, it is possible to manufacture concrete that satisfies the required quality with high accuracy.

FIG. 8 is a flowchart of a concrete manufacturing method according to another embodiment of the present invention, and is a flowchart including a second weighing step, a secondary input amount correction step, and the like. In some embodiments, as shown in FIG. 8, the concrete manufacturing method 100 described above includes a second weighing step S301, a second aggregate information obtaining step S302, a secondary input amount correcting step S303, is further provided.

In the second weighing step S301, before the second kneading step S106 (step S106B), each concrete material newly kneaded in the second kneading step S106 is weighed. More specifically, in the second weighing step S301, as shown in FIG. A quantity QS is weighed.

In the second aggregate information acquisition step S302, the second aggregate information IA2 is acquired during the second measurement step S301. Here, the second aggregate information IA2 is information relating to the aggregate in the second weighing step S301, and similar to the above-described first aggregate information IA1, is is obtained. An image of at least one of the fine aggregate and the coarse aggregate is captured by the second imaging device 71 during the second weighing step S301. The second aggregate information IA2 includes aggregate information in the second weighing step S301 acquired from the photographed image photographed by the second photographing device 71, and the information includes the strength and fluidity of the concrete. and information on concrete properties such as air content.

Also, the second aggregate information IA2 includes at least one of the surface water content of the aggregate (fine aggregate) and the particle size distribution of the aggregate (coarse aggregate). As described above, the surface water content of aggregates (fine aggregates) includes information on properties of concrete such as strength, fluidity, and air content of concrete. In addition, as described above, the particle size distribution of the aggregate includes information on concrete properties such as concrete strength and fluidity.

In the secondary charge amount correction step S303, the secondary charge amount QS is corrected for each concrete material based on the second aggregate information IA2. The corrected secondary input amount QS is obtained by re-performing the mixing design based on the second aggregate information IA2 by the above-described mixing amount determination device 86 so as to approach the target quality TQ. QS is determined. Each secondary charge amount QS after correction may be increased or decreased from the secondary charge amount QS before correction. Since the primary charging amount correcting step S303 is performed during the second weighing step S301, in the above-described second weighing step S301, for each of the concrete materials, the secondary charging amount corrected in the secondary charging amount correcting step S303 is calculated. A quantity QS is weighed.

According to the above method, in the second aggregate information acquisition step S302, the second aggregate information IA2, which is information about the aggregates in the second weighing step S301 prior to the second kneading step S106 (step S106B), is obtained. It is obtainable. The second aggregate information IA2 includes information about properties of concrete such as strength, fluidity, and air content of concrete. For example, the surface water content of aggregates (fine aggregates) includes information on concrete properties such as strength, fluidity, and air content. In addition, the particle size distribution of aggregates contains information on concrete properties such as concrete strength and fluidity. In addition, since the second aggregate information IA2 is information about aggregates actually put in the second kneading step S106, based on the second aggregate information IA2, it is newly put in the second kneading step S106. By correcting the secondary input amount QS, which is an amount that is a constant, the secondary input amount QS can be adjusted to an appropriate amount. Therefore, according to the above method, it is possible to manufacture concrete that satisfies the required quality with high accuracy.

As described above, in some embodiments, the above-described aggregate information (first aggregate information IA1, second aggregate information IA2) is at least one of aggregate surface water content and aggregate particle size distribution. contains. As described above, the surface water content of aggregates (fine aggregates) includes information on concrete properties such as concrete fluidity and air content. In addition, the particle size distribution of the aggregate (coarse aggregate) contains information on concrete properties such as concrete fluidity and strength. According to the above method, the information on the aggregate (first aggregate information IA1, second aggregate information IA2) includes the surface water content and particle size distribution of the aggregate, so that the primary input amount QP and the secondary Since the input amount QS can be set to an appropriate amount corresponding to the target properties of the concrete, it is possible to accurately manufacture concrete that satisfies the required quality.

In some embodiments, the primary input amount QP described above is an amount of 20% or more and 80% or less of the design compounding amount QD. In this case, the secondary charging amount QS is about 20 to 80% of the design mixing amount QD. , the properties of the concrete kneaded in the first kneading step S102 can be adjusted in a wide range. Therefore, it is possible to accurately manufacture concrete that satisfies the required quality.

Further, in some embodiments, the blending ratio of the primary input amount QP is the same as the blending ratio of the designed blending amount QD. In this case, highly accurate property information IP can be obtained from the kneading state information IK that conforms to the blending ratio of the design blending amount QD, so the corrected design blending amount can be set to an appropriate amount.

FIG. 9 is a flow diagram of a concrete manufacturing method according to another embodiment of the present invention, and is a flow diagram including a kneading time determination step and the like. In some embodiments, as shown in FIG. 9, a second kneading state information acquisition step S401, a second property information acquisition step S402, and a kneading time determination step S403 are further provided.

In the second kneading state information acquisition step S401, the second kneading state information IK2 is acquired during the second kneading step S106. Here, the second kneading state information IK2 is information relating to the kneading state of concrete in the second kneading step S106, and is acquired by the kneading state information acquisition device 6 in the same manner as the first kneading state information IK1 described above.

In the second property information acquisition step S402, the second property information IP2 is acquired based on the second kneading state information IK2. The second property information IP2 is information (property information IP) on the properties of the concrete kneaded in the second kneading step S106, and is a strength index value that is an index on the strength of the concrete, similar to the first property information IP1 described above. , and a fluidity index value, which is an index related to the fluidity of concrete. The second property information IP2 is estimated by the property information estimation device 87 based on the second kneading state information IK2, like the first property information IP1 described above. The property information estimation device 87 estimates the second property information IP2 from the second kneading state information IK2 based on the second association information IR2 that associates the second kneading state information IK2 and the property information IP in advance.

In the kneading time determination step S403, the kneading time T in the second kneading step S106 is determined based on the second property information IP2.

According to the above method, the second property information IP2, which is information about the properties of the concrete being mixed in the second kneading step S106, can be obtained by the second kneading state information obtaining step S401 and the second property information obtaining step S402. be. By determining the kneading time T in the second kneading step S106 based on the second property information IP2, the kneading time T can be set to an appropriate time according to the properties of the concrete required, so that the required quality can be achieved. Filling concrete can be manufactured with high accuracy.

Further, by determining the kneading time T in the second kneading step S106 based on the second property information IP2, it is possible to adjust the properties of the concrete in the second kneading step S106. As a result, the labor, time, and cost required for producing concrete can be reduced. In addition, since the properties of the concrete can be adjusted during the second kneading step S106, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

FIG. 10 is a flow diagram of a concrete manufacturing method according to another embodiment of the present invention, and is a flow diagram including a quality determination step and the like. In some other embodiments, as shown in FIG. 10, the second kneading state information acquisition step S401 described above, the second property information acquisition step S402 described above, the quality determination step S501, and the admixture addition step and S502.

In the quality determination step S501, the quality of the concrete kneaded in the second kneading step S106 is determined based on the second property information IP2. More specifically, in the quality determination step S501, the second property information IP2 satisfies the target quality TQ at the present time, or the second property information IP2 reaches the target by continuing the concrete kneading in the second kneading step S106. It is determined whether any of the conditions of satisfying the quality TQ is satisfied, and if any of the conditions are satisfied, it is determined that the concrete mixed in the second mixing step S106 satisfies the required quality (in S501 “YES”). By continuing the kneading of the concrete in the second kneading step S106, the adjustable range RA, which is the range in which the second property information IP2 satisfies the target quality TQ, is set, and the second property information IP2 can be adjusted. Whether or not it is within the range RA may be used as a criterion for determination.

When it is determined that the concrete kneaded in the second kneading step S106 satisfies the required quality ("YES" in S501), immediately or after the predetermined kneading time T has elapsed, the The kneading of the concrete is finished (step S503), and the concrete produced from the mixer 5 is discharged.

When it is determined that the concrete kneaded in the second kneading step S106 does not satisfy the required quality ("NO" in S501), the mixing material is added to the concrete kneaded in the second kneading step S106 (mixing Material addition step S502). As shown in FIG. 1, the scale 4 further includes an admixture scale 45 capable of adjusting the input amount of the admixture. Here, the admixture means a material other than aggregate, cement, and water that is mixed with concrete for the purpose of improving the properties of concrete, and includes water reducing agents, fluidizing agents, and the like. The admixture may contain not only an admixture such as a water reducing agent and a fluidizing agent, but also an admixture such as a water reducing agent, or may contain only an admixture.

According to the above method, in the quality determination step S501, it is possible to determine whether the concrete kneaded in the second kneading step S106 satisfies the required quality based on the second property information IP2. Further, in the admixture addition step S502, when it is determined in the quality determination step S501 that the concrete kneaded in the second kneading step S106 does not satisfy the required quality ("NO" in S501), the concrete has the required quality. By adding the admixture so as to satisfy the requirements, it is possible to adjust the properties of the concrete in the second kneading step S106, so that the concrete that satisfies the required quality can be produced with high accuracy. In addition, since it is possible to adjust the properties of the concrete during the second kneading step S106, it is possible to suppress unsatisfactory results in the quality inspection, which in turn reduces the labor, time, and costs required to manufacture concrete. can do. In addition, since the properties of the concrete can be adjusted during the second kneading step S106, it is possible to suppress variations in the quality of the manufactured concrete for each batch.

In some embodiments, the formulation amount determination device 86 stores the storage device 91 when determining the design formulation amount QD and the modified design formulation amount QM as shown in FIGS. 4(a) and 5(b). You may refer to the compounding information IF stored in . Here, the compounding information IF is stored in the storage device 91 in association with the material information IM, the kneading state information IK, and the property information IP for each batch. The mix information IF includes information on cement, information on water, information on coarse aggregate and fine aggregate, information on admixture materials, and information on mix design. In this case, the blending amount determination device 86 can improve the accuracy of estimating the design blending amount QD and the corrected design blending amount QM by referring to the blending information IF.

In some embodiments, the association information creation device 88 may refer to the combination information IF stored in the storage device 91 when creating the association information IR as shown in FIG. 5(a). good. In this case, the association information creation device 88 can improve the accuracy of the association information IR by referring to the combination information IF.

Information about cement includes types of cement such as ordinary cement, blast furnace cement, high-early strength cement, low heat cement, moderate heat cement, density of cement, and specific surface area of cement. The information about water includes the type of water such as tap water, industrial water, and supernatant water, the density of water, and the pH value of water. Information on coarse and fine aggregates includes rock types and properties, rock origin, coarse and fine aggregate densities, particle size distributions, coarse particle ratios, fine particle fractions, particle shapes, solid volume fractions, and water absorption. rate and stability. Information on admixtures includes types of admixtures such as silica fume, granulated blast furnace slag, fly ash, limestone fine powder, gypsum, density of admixtures, specific surface area of admixtures, AE water reducing agents, antifoaming agents, fluidization type of admixture, such as a thickening agent, thickener, density of the admixture, and solids content of the admixture. Information on mix design includes unit cement volume, unit water volume, unit coarse aggregate volume, unit fine aggregate volume, unit binder volume, unit powder volume, water cement ratio, water binder ratio, water powder ratio, It includes cement water ratio, binder water ratio, powder water ratio, fine aggregate ratio, coarse aggregate bulk capacity, admixture addition amount, air amount and so on. Here, the binder consists of cement and an admixture, and the powder consists of fine powder such as cement, mineral matter and silica fume.

In some embodiments, the concrete manufacturing method 100 described above further includes a photographing step of photographing the concrete discharged from the mixer 5 after being kneaded in the second kneading step S106. As shown in FIG. 2 , the concrete manufacturing system 1 described above further includes a third photographing device 12 capable of photographing the concrete discharged from the mixer 5 to the hopper 11 . An image (photographed image) of concrete kneaded and manufactured by the mixer 5 is photographed by the third photographing device 12 . The photographed image photographed by the third photographing device 12 and the information obtained from the photographed image by the image processing device 89 include information on concrete properties such as concrete strength, fluidity, and air content. In this case, the photographed image photographed by the third photographing device 12 and the information acquired from the photographed image are used when determining the design blending amount QD and the corrected design blending amount QM, and when creating the association information IR. , it is possible to improve the accuracy of estimating the design compounding amount QD and the corrected design compounding amount QM, and improve the accuracy of the association information IR.

Although the first information processing device 8 and the second information processing device 9 are configured separately in the above-described embodiments, they may be configured integrally. Further, some of the configurations and information provided by the first information processing device 8 described above may be included in the second information processing device 9, and some of the configurations and information provided by the second information processing device 9 may be Some may be provided in the first information processing device 8 .

In addition, the above-described target quality TQ and the above-described property information IP may further include tensile strength, shear strength, and bending strength obtained by various strength tests, air content obtained by air content tests, and the like. .

The present invention is not limited to the above-described embodiments, and includes modifications of the above-described embodiments and modes in which these modes are combined as appropriate.

1 Concrete production system 2 Concrete production equipment 3 Storage container 31 Cement storage container 32 Water storage container 33 Coarse aggregate storage container 34 Fine aggregate storage container 4 Scale 41 Cement scale 42 Water scale 43 Coarse aggregate scale 44 Fine aggregate weigher 5 Mixer 51 Stirring shaft 52 Stirring blade 53 Drive source 6 Kneading state information acquiring device 61 First photographing device 62 Ammeter 7 Material information acquiring device 71 Second photographing device 8 First information processing device 80 Bus 81 Enter Output device 82 Storage device 83 Display device 84 Arithmetic device 86 Mixing amount determination device 87 Property information estimation device 88 Association information creation device 89 Image processing device 9 Second information processing device 100 Concrete manufacturing method CI Photographed image IA1 First aggregate information IA2 Second aggregate information IF Mixing information IK, IK1, IK2 Kneading state information IM Material information IP, IP1, IP2 Property information IR, IR1, IR2 Linking information QD, QD1 to QD4 Design mixing amount QM, QM1 to QM4 Modified design mixing Amount QP, QP1 to QP4 Primary input amount QS, QS1 to QS4 Secondary input amount RS Adjustable range S101 Mixture design step S102 First kneading step S103 First kneading state information acquisition step S104 First property information acquisition step S105 Correction design Mixing amount determination step S106 Second kneading step S201 First measurement step S202 First aggregate information acquisition step S203 Primary input amount adjustment step S301 Second measurement step S302 Second aggregate information acquisition step S303 Secondary input amount adjustment step S401 Second kneading state information acquisition step S402 Second property information acquisition step S403 Kneading time determination step S501 Quality determination step S502 Mixed material addition step T Kneading time TF Target fluidity index TQ Target quality TS Target strength index

Claims (10)

A concrete manufacturing method for manufacturing concrete by kneading a concrete material containing cement, water and aggregate,
A mix design step of determining a design mix amount per batch for each of the concrete materials;
A first kneading step of charging a primary charging amount, which is a smaller charging amount than the design mixing amount, into a mixer for each of the concrete materials;
a first kneading state information acquisition step of acquiring, during the first kneading step, first kneading state information that is information relating to the kneading state of concrete during the first kneading step;
a first property information acquiring step of acquiring first property information, which is information relating to properties of the concrete kneaded in the first kneading step, based on the first kneading state information;
a corrected design mixture amount determination step of determining a corrected design mixture amount by correcting the design mixture amount for each of the concrete materials based on the first property information;
a second kneading step of charging the mixer with a secondary charging amount determined based on the corrected design mixing amount and the primary charging amount for each of the concrete materials;
A method for producing concrete comprising: In the first property information acquiring step, the first property information is acquired from the first kneading state information based on association information that associates the first kneading state information with property information that is information relating to properties of the concrete. The method for producing concrete according to claim 1. 3. The method of manufacturing concrete according to claim 2, wherein the association information is generated by machine learning using the first kneading state information and the property information as learning data. 4. The concrete manufacturing method according to any one of claims 1 to 3, wherein the first kneading state information includes a photographed image of the concrete in the first kneading step photographed by a photographing device. a first weighing step of weighing each of the concrete materials to be kneaded in the first kneading step prior to the first kneading step;
a first aggregate information acquiring step of acquiring first aggregate information, which is information about the aggregate in the first weighing step;
5. The concrete material according to any one of claims 1 to 4, further comprising a primary input amount correction step of correcting the primary input amount based on the first aggregate information for each of the concrete materials. Production method. a second weighing step of weighing each of the concrete materials to be newly kneaded in the second kneading step prior to the second kneading step;
a second aggregate information acquisition step of acquiring second aggregate information, which is information about the aggregate in the second weighing step;
The concrete material according to any one of claims 1 to 5, further comprising a secondary input amount correction step of correcting the secondary input amount based on the second aggregate information for each of the concrete materials. Production method. 7. The method for producing concrete according to claim 5, wherein the information on the aggregate includes at least one of a surface water content of the aggregate and a particle size distribution of the aggregate. The method for producing concrete according to any one of claims 1 to 7, wherein the primary input amount is 20% or more and 80% or less of the design mixing amount. a second kneading state information acquiring step of acquiring, during the second kneading step, second kneading state information that is information relating to the kneading state of the concrete during the second kneading step;
a second property information acquiring step of acquiring second property information, which is information relating to properties of the concrete kneaded in the second kneading step, based on the second kneading state information;
The concrete manufacturing method according to any one of claims 1 to 8, further comprising a kneading time determination step of determining a kneading time in the second kneading step based on the second property information. a second kneading state information acquiring step of acquiring, during the second kneading step, second kneading state information that is information relating to the kneading state of the concrete during the second kneading step;
a second property information acquiring step of acquiring second property information, which is information relating to properties of the concrete kneaded in the second kneading step, based on the second kneading state information;
a quality determination step of determining the quality of the concrete kneaded in the second kneading step based on the second property information;
a mixed material adding step of adding a mixed material to the concrete mixed in the second mixing step when the quality determining step determines that the concrete mixed in the second mixing step does not satisfy the required quality; The method for producing concrete according to any one of claims 1 to 8, further comprising:

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