JP5520561B2 - Raw concrete quality control information system - Google Patents

Description

  The present invention relates to a ready-mixed concrete quality control information system capable of providing quality information relating to the quality of ready-made concrete simply, accurately and reliably.

  Quality information on the quality of ready-mixed concrete, such as the raw materials that make up ready-mixed concrete, its blending ratio, and fresh properties, is extremely important information for knowing the properties of concrete structures such as mechanical strength and durability. A concrete manufacturer acquires and stores such quality information and presents it to the receiving side of ready-mixed concrete as necessary.

According to the Japanese Industrial Standard “JIS A5308” for ready-mixed concrete, if requested by the purchaser from April 1, 2010, after delivery of ready-mixed concrete, (1) measurement reading record for each batch and calculation from this Unit quantity, (2) Weighing printing record for each batch and unit quantity calculated from this, or (3) Weighing printing record for each batch and unit quantity automatically calculated from this, and submit each weighing averaged together the value for each truck one, it has become a be submitted to fix the unit amount of concrete 1m ^3.

  As a method of providing quality information of ready-mixed concrete to the purchaser, the quality information is usually described in a composition plan, a delivery form, a strength test report, and the like. However, in order to manage the quality information on the receiving side, it is necessary to store and manage the delivery form for a long period of time. For management by a computer, it is important that the delivery form matches the computer data, such as an input error when inputting information to the computer. In addition, when the contents of the quality information increase, it is necessary not only to make an input mistake but also to secure a worker for input separately, which causes a cost increase.

  In addition, information that was found at the time of production of ready-mixed concrete can be described in the delivery form, but there was no special means of providing information that was found after that. As information that cannot be described in the delivery form, in order to check the quality of the concrete produced by the manufacturer, after the production of ready-mixed concrete, a part of the specimen that was produced by taking out a part of it was concerned with the strength and durability. There is something.

  Furthermore, a method of recording quality information on an IC card or IC tag and providing it to a consumer has been proposed. In the IC tag, there are a method of installing on a concrete product itself as in Patent Document 1 and a method of installing on a ready-mixed concrete transport vehicle as in Patent Document 2.

  However, in the method using an IC card, it is necessary to read information recorded on the IC card at a concrete placement site and record it on a computer or the like. For this reason, in order to confirm the contents at the office at a later date, the data read at the installation site should be brought back to the office by some method, or the information should be transmitted to the office computer by communication means. Is required. In addition, when the IC card is returned to the manufacturer, no data remains on the client side, and when the read data is broken, it becomes difficult to reproduce the data.

  In addition, the method using the IC tag can also read the information recorded on the IC tag only in the place where the building is located when the IC tag is in the concrete building, collect all the information, The management work becomes very complicated. When an IC tag is provided on a concrete transport vehicle, the IC tag is reused and no data is left on the client side, as with an IC card, and reproduction when the read data is broken becomes difficult. .

  Furthermore, quality information provided by IC cards and IC tags is limited to information that can be obtained at the time of production of ready-mixed concrete, and quality information obtained after manufacture cannot be provided to the receiving side of ready-mixed concrete. It was.

JP 2008-137284 A JP 2008-137285 A

  The present invention has been made to solve the above-mentioned problems, and can provide quality information relating to the quality of ready-mixed concrete to the receiving side easily, accurately, and obtained after the ready-mixed concrete is manufactured. The purpose of the present invention is to provide a ready-mixed concrete quality control information system that can be obtained very easily by the receiving party.

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that quality information relating to the quality of ready-mixed concrete is accumulated, and the ready-mixed concrete is supplied to a database server connected to the Internet and a transporter that transports the ready-mixed concrete. Code data generating means for generating unique code data capable of specifying an address indicating the position on the Internet where the quality information of the loaded ready-mixed concrete is stored in the database server each time it is loaded; Code data holding means holding data, and a user who can read the code data from the code data holding means, specify the address based on the code data, and access the address to obtain the quality information A terminal, and a code resolution server that associates the code data with the address Then, the user terminal reads the code data, accesses the code resolution server, acquires the address corresponding to the read code data, and accesses the acquired address to acquire the quality information. Further, the quality information includes two types of information (A) specified at the time of loading the ready-mixed concrete on the transport vehicle and information (B) specified after the time There is, in the information (B), a ready-mixed concrete quality management information system aging characteristics according to specimen having the same composition as the raw concrete loaded on the truck, characterized in that the contained at least, the carrying The vehicle is provided with a temperature sensor for measuring the temperature of the ready-mixed concrete, and the information (B) includes temperature data measured by the temperature sensor. It is a ready-mixed concrete quality management information system.

  The invention according to claim 2 is the ready-mixed concrete quality control information system according to claim 1, wherein the information (A) includes at least the unloading time when the ready-mixed concrete is loaded on the transport vehicle, and the information (B) Includes at least the delivery time of ready-mixed concrete.

The invention according to claim 3, in ready-mixed concrete quality management information system according to claim 1, in the information (B), characterized in that includes a unit amount calculation records per luck搬車.

  The invention according to claim 4 is the ready-mixed concrete quality control information system according to claim 1, wherein the information (B) includes the temperature of ready-mixed concrete at the time of delivery.

  The invention according to claim 5 is the ready-mixed concrete quality control information system according to any one of claims 1 to 4, wherein the code data is information that allows the user terminal to directly read the address. And

  The invention according to claim 6 is the ready-mixed concrete quality control information system according to any one of claims 1 to 5, wherein the code data is ucode.

  The invention according to claim 7 is the ready-mixed concrete quality control information system according to any one of claims 1 to 6, wherein the code data holding means is a document printed with the code data, and an IC tag holding the code data. , An IC seal or an IC card.

  The invention according to claim 8 is the ready-mixed concrete quality control information system according to claim 7, wherein the code data is a barcode or a matrix type two-dimensional code.

  The invention according to claim 9 is the ready-mixed concrete quality management information system according to any one of claims 1 to 8, wherein the user terminal is capable of reading the code data and the acquired quality information. It is a portable terminal capable of screen display.

  The invention according to claim 10 is the ready-mixed concrete quality control information system according to claim 9, wherein the portable terminal transmits the code data to another user terminal, or the quality from the database server. It has a function of transmitting information necessary for downloading information to another user terminal from the portable terminal or the database server to the other user terminal.

  The invention according to claim 11 is the ready-mixed concrete quality management information system according to any one of claims 1 to 10, wherein the user terminal notifies a delivery signal indicating that the ready-mixed concrete has been delivered via the Internet. And a delivery notification function for recording the delivery time as quality information in the database server based on the delivery signal.

  In order to solve the above-mentioned problem, according to the invention according to claim 1, the quality information relating to the quality of the ready-mixed concrete is accumulated, and the ready-mixed concrete is supplied to the database server connected to the Internet and the transport vehicle that transports the ready-mixed concrete. Code data generating means for generating unique code data capable of specifying an address indicating the position on the Internet where the quality information of the loaded ready-mixed concrete is stored in the database server each time it is loaded; Code data holding means holding data, and a user who can read the code data from the code data holding means, specify the address based on the code data, and access the address to obtain the quality information It is a ready-mixed concrete quality control information system characterized by having a terminal. Therefore, using the code data stored in the code data holding means, easy access to the database server storing the quality information of ready-mixed concrete per truck. Moreover, when the code data holding means is stored or when the code data held in the code data holding means is read and stored, the quality information can be obtained anytime and anywhere. As described above, according to the present invention, quality information relating to the quality of ready-mixed concrete can be provided to the receiving side simply, accurately, and reliably.

  In addition, according to the first aspect of the present invention, there is provided a code resolution server that associates code data with the address, and the user terminal reads the code data, accesses the code resolution server, and corresponds to the read code data It is possible to acquire the address and access the acquired address to acquire the quality information, so that the administrator of the database server is changed or the quality information is moved to another database. Even if the address indicating the location on the Internet where the quality information is stored is changed, as in the case where the quality information is stored, the correct quality information is always accessed simply by updating the code resolution server information. It becomes possible.

Furthermore, according to the invention according to claim 1, the quality information includes two types of information (A) specified at the time when the ready-mixed concrete is loaded on the transport vehicle and information (B) specified after the time. Therefore, the quality information obtained after the time when the ready-mixed concrete is loaded can be easily obtained using the code data obtained from the code data holding means. In particular, since the information (B) includes at least the time-varying characteristics of the specimen having the same composition as the ready-mixed concrete loaded on the transport vehicle, the test specimen is also important information as ready-made concrete quality information. It becomes possible to easily obtain the quality information regarding. Moreover, since the information (B) includes temperature data of the ready-mixed concrete measured by the temperature sensor provided in the transport vehicle, it is possible to easily obtain extremely useful quality information related to the delivered product. .

  According to the invention according to claim 2, the information (A) includes at least the unloading time when the ready-mixed concrete is loaded on the transport vehicle, and the information (B) includes at least the delivery time of the ready-mixed concrete. From both information, it is possible to record the time required from unloading to delivery, which is important information in the quality information of ready-mixed concrete.

The invention according to claim 3, information on the (B), because it contains a unit amount calculation records per luck搬車also Ru important information der as quality information for ready-mixed concrete, deliveries and raw concrete It is possible to easily obtain information indicating the exact content of the blending.

  According to the invention according to claim 4, since the temperature of ready-mixed concrete is included in information (B), it is easy to obtain temperature information at the time of delivery that is useful as quality information of ready-mixed concrete. Is possible.

  According to the invention of claim 5, since the code data is information that allows the user terminal to directly read the address, the user terminal can directly access the database server based on the read address information, and the quality information Can be easily obtained.

  According to the invention according to claim 6, since the code data is ucode, for example, by using a unique code issued by the ubiquitous ID center, for example, ready-mixed concrete carried by a specific transport vehicle at a specific date and time Can be specified without being confused.

  According to the invention of claim 7, since the code data holding means is any one of a document printed with the code data, an IC tag holding the code data, an IC sticker, or an IC card, a commercially available reading means is used. The code data can be easily read. In particular, when printing code data on a document such as a delivery note, the only code data can be transmitted to the delivery destination by only handing over a document such as a normal delivery note. As long as it is available, the quality information can be obtained anytime, anywhere. The same effect can be expected when an IC tag, an IC sticker, or the like is attached to and integrated with a document such as a delivery note.

  According to the invention of claim 8, since the code data is a barcode or a matrix type two-dimensional code, the database server storing quality information is easily accessed by reading the barcode or matrix type two-dimensional code. It becomes possible to do.

  According to the invention of claim 9, since the user terminal is a portable terminal capable of reading the code data and capable of displaying the acquired quality information on the screen, the quality information can be obtained even at the site of placing the ready-mixed concrete. The stored database server can be easily accessed and quality information can be browsed.

  According to the invention of claim 10, the portable terminal transmits the function for transmitting the code data to another user terminal or the information necessary for downloading the quality information from the database server to the other user terminal. Since it has either a type terminal or a function of transmitting from the database server to the other user terminal, it is possible to smoothly obtain and manage quality information at the user terminal.

  According to the invention of claim 11, the user terminal has a delivery notification function for notifying the delivery signal indicating that the ready-mixed concrete has been delivered via the Internet, and as the quality information to the database server based on the delivery signal. Since the delivery time is recorded, it is possible to easily and accurately record the important delivery time as quality information, and it is possible to further improve the reliability of the quality information.

It is a figure which shows the outline of the ready-mixed concrete quality control information system of this invention. It is a figure which shows the example of the delivery document utilized for the ready-mixed concrete quality control information system of this invention.

  The raw concrete quality control information system of the present invention will be described in more detail. These forms are specifically described for better understanding of the gist of the invention, and do not limit the present invention unless otherwise specified.

  As shown in FIG. 1, the ready-mixed concrete quality management information system of the present invention accumulates quality information related to the quality of ready-mixed concrete, and a database server 2 connected to the Internet 1 and a transporter that transports the ready-mixed concrete. Code data generating means for generating unique code data capable of specifying an address indicating a position on the Internet where quality information of the loaded ready concrete is stored in the database server every time ready concrete is loaded Code data holding means holding the code data; reading the code data from the code data holding means; specifying the address based on the code data; and accessing the address to obtain the quality information User terminals (4, 5) capable of

  As shown in FIG. 1, a database server 2 storing quality information, a code resolution server 3 to be described later, a user terminal such as a portable terminal 4 or a user computer 5 forms a network via the Internet 1. .

  The database server 2 stores quality information about individual ready-mixed concrete for each transport vehicle and for each transport. The quality information includes, as a minimum, information necessary to be presented in the Japanese Industrial Standard “JIS A5308” regarding ready-mixed concrete. The quality information includes two types of information (A) specified at the time when the ready-mixed concrete is loaded on the transport vehicle and information (B) specified after the time.

The following information is listed as the quality information (A) specified at the time when raw concrete is loaded on the transport vehicle, particularly information presented in the concrete delivery form.
(1) Ready-mixed concrete delivery location (2) Car number (vehicle number)
(3) Time of loading ready-mixed concrete (unloading time)
(4) Ready-mixed concrete delivery volume (cumulative volume with other transport vehicles can be specified)
(5) Nomenclature (symbol by concrete type, nominal strength, slump or slump flow, maximum size of coarse aggregate, symbol by cement type)
(6) Recipe (cement, admixture, water, fine aggregate, coarse aggregate, water cement ratio, water binder ratio, coarse aggregate ratio, sludge solid content ratio calculated from these)
(7) Type of blending (standard blending, modified standard blending, unit quantity calculated from measurement reading record, unit quantity calculated from weighing print record, or unit quantity automatically calculated from weighing print record)

In addition, the following information described in a “concrete blending plan” or the like created when a concrete manufacturer orders raw concrete can be accumulated as quality information (A).
・ Client / construction name / designated items (type of cement, type of aggregate, maximum size of coarse aggregate, method for suppressing alkali silica reaction, classification based on alkali silica reactivity of aggregate, classification of water, admixture Type and amount used, chloride content, age to guarantee nominal strength, air content, lightweight concrete unit volume mass, concrete temperature, water cement ratio target value upper limit, unit water amount target value upper limit, The lower limit of the target value of the unit cement amount or the upper limit of the target value, the amount of slump increase after fluidization)
・ Materials used (Cement producer name / density, product name / type / density of admixture, type of fine aggregate or coarse aggregate, origin or product name, classification and test method based on alkali silica reactivity, grain size Range, coarse particle ratio or actual ratio, density, fine particle amount range, product name / type of admixture, fine aggregate chloride, water classification, target sludge solid content)
・ Calculated value and judgment of total alkali amount contained in cement, aggregate and admixture

  The above-described blending plan can be stored as character data, but the blending plan can be stored as image data and stored as a copy of the blending plan. In addition, if the manufacturer finds a defect in the ready-mixed concrete sold at a later date, it is necessary to identify the customer and report the defect in the product. Is valuable information. As quality information, information that can easily identify the client and the construction site / facility of the ready-mixed concrete sold is also stored, and the manufacturer side accesses the database that stores the quality information and searches for used cement and aggregates. As a condition, it is preferable to be able to specify a construction place or the like.

Next, as the quality information (B) specified after the time when the ready-mixed concrete is loaded on the transporter, the following items are listed.
(8) Time of delivery of ready-mixed concrete (delivery time)
(9) Time-varying characteristics of specimen (strength change and durability at each material age)
(10) Unit amount calculation record per transport vehicle (record required when specifying the mix components of ready-mixed concrete delivered by transport vehicle)

  Regarding (8) delivery time of the quality information, it is preferable that information is input at the site of the delivery destination. As will be described later, a user terminal, more preferably a portable terminal that can be easily carried on site, is used for input. As for the time-varying characteristics of the specimen (9), data obtained every time the manufacturer tests the specimen is accumulated.

  Moreover, as quality information (B), various information, such as the temperature of ready-mixed concrete at the time of delivery and the positional information of the construction place specified using GPS etc., can be added. In particular, the temperature of ready-mixed concrete is useful as quality information for delivered products. When measuring with a temperature sensor provided in the transport vehicle, the communication means provided in the transport vehicle accesses the database server and transmits the temperature measurement value, or the code data holding means has a storage function as described later. If it is an IC tag or the like, it is possible to provide data writing means in the transport vehicle and store temperature data in the IC tag or the like. Similar to the delivery time described above, the data stored in the IC tag etc. can be transmitted using a user terminal, or the IC card itself can be brought back to the manufacturer and transferred to the manufacturer's computer. is there.

  One of the features of the present invention is that unique code data is assigned each time the ready-mixed concrete is loaded on a transporter that transports the ready-mixed concrete. This code data makes it possible to specify the quality information from an address indicating a position on the Internet in a database in which the quality information of the ready-mixed concrete loaded on the transport vehicle is stored. This code data must not be duplicated data, and is always unique code data.

  As the code data, information that can be read and discriminated directly by a user terminal from an address (Uniform Resource Locator; URL) in which quality information is stored can be used. In such a case, the user terminal can access the database server directly via the Internet based on the read address information, and can easily obtain quality information.

  Other code data is premised on a means (code resolution server) for associating code data with an address (URL) where quality information corresponding to the code data is stored. As such code data, ucode issued by the ubiquitous ID center can be suitably used. The code data generating means for generating code data such as ucode is connected to the server of the organization that manages the code data, accepts a signal requesting the generation of the code data, and automatically generates the code data. It is also possible to receive a designation of a range of code data that can be given in advance from an organization that manages the code data, and to make the ready-mixed concrete manufacturer give code data within the range.

  Such code data generation means can use a computer or server other than the database server 2 or the code resolution server 3, and if necessary, the functions of the database server or the code resolution server. It is also possible to provide the function in the same hardware.

  In the code resolution server 3, it is necessary to associate the code data generated for each transport vehicle with the quality information of the ready-mixed concrete carried by the transport vehicle. For this reason, the code data as shown in Table 1 is associated with the quality information corresponding to the code data and the URL indicating the stored location on the Internet.

  The code data generating means registers the generated code data in the code resolution server 3 and sets the URL of the database server that stores the quality information corresponding to the code data to be registered in the code resolution server. It is also possible. Of course, the URL registration operation can also be performed using another computer.

  The code resolution server 3 is configured to automatically return a URL corresponding to the code data when receiving an inquiry about the code data from a user terminal or the like. The user terminal that has received the URL accesses the URL and acquires the quality information stored in the database server 2 of the URL.

  Next, as the code data holding means, any one of a document printed with the code data, an IC tag holding the code data, an IC sticker, or an IC card can be suitably used. An IC tag or the like can easily read code data by using a commercially available reading means, and can construct a system according to the present invention at low cost. Further, when the code data is printed on a document such as a delivery note, the only code data can be transmitted to the delivery destination only by the delivery of the document such as a normal delivery note. Moreover, as long as the delivery documents are stored, the quality information can be obtained anytime and anywhere, which is highly convenient. The same effect can be expected when an IC tag, an IC sticker, or the like is attached to a document such as a delivery note.

  As code data to be printed on a document, a bar code or a matrix type two-dimensional code can be used. As shown in FIG. 2, the matrix type two-dimensional code 12 called “QR code (registered trademark)” has a large amount of information that can be displayed, and also sells many simple readers and portable terminals with reading functions. Therefore, it can be suitably used in constructing the ready-mixed concrete quality control information system of the present invention.

  The code data issued for each transport vehicle will be described with reference to an example of printing on a delivery form 10 as shown in FIG. 2 that the transport vehicle brings to the delivery destination. The delivery form 10 displays code data together with normal quality information. For this reason, when creating a delivery note, it is convenient and preferable to print quality information and code data at one time with one device, but it is also possible to configure each part to be printed with separate devices. is there. It is also possible to affix a sticker displaying code data to a delivery form, and there is a method of attaching an IC tag or IC sticker to a document.

  At the delivery destination of ready-mixed concrete such as a concrete placement site, the receiving worker receives the delivery form. From then on, a user such as an on-site person, a contractor, or a client can easily access the quality information of the ready-mixed concrete using this delivery form. Specifically, using the user terminals (4, 5), the code data displayed on the delivery slip is read, and the database server is directly accessed, or the code resolution server 3 is accessed. In the code resolution server, the URL corresponding to the corresponding code data is returned to the user terminal, and the user terminal can access the URL. By accessing the database server of the URL, the quality information stored in the database server 2 is transmitted to the user terminal.

  Even in the case of IC tags, IC stickers, IC cards, etc., if code data holding means is handed to the user side as in the delivery form, the user can use these as in the delivery form described above to create a database.・ Can access the server. In addition, when code data holding means does not remain on the user side, such as when the IC card is taken back to the manufacturer side, the IC card or the like using a user terminal possessed by a person in charge of the field, particularly a portable terminal The information including the code data recorded in is copied to the terminal side and the code data is transferred.

  The user terminal is not particularly limited as long as it can realize the above-described functions, but in consideration of the situation of the concrete placing site and the fact that the contractor will perform paperwork later, the portable terminal 4 is preferably used as a user terminal.

  The portable terminal is preferably one that can be connected to the Internet wirelessly, and more preferably one that has a code reader function that captures and reads code data and a screen that can display quality information acquired from the database server 2.

  In addition, in user terminals including portable terminals, the code data is read at the delivery destination to access the database server, and from the portable terminal to the database server or other specific server specified by the ready-mixed concrete manufacturer, It is preferable to have a delivery notification function for notifying a delivery signal indicating that ready-mixed concrete has been delivered via the Internet. Based on this delivery signal, the database server is set to record delivery time as quality information.

The difference between the delivery time and the unloading time recorded in advance in the database server 2 is the time required for transporting the ready-mixed concrete, and serves as reference information for determining how fresh ready-made concrete is used. . It is also possible to transmit temperature data measured at the placement site using a portable terminal.
It is also possible to transmit fresh property data (for example, slump, air volume, etc.) at the time of acceptance measured at the placement site using a portable terminal. By grasping how much the fresh properties have changed from manufacturing to on-site, it is possible to use it for quality control at the time of shipment in a ready-mixed concrete factory.

  In a user terminal using a personal computer, it is preferable that quality information is acquired and downloaded to the user terminal side so that the user can use it as quality information of ready-mixed concrete for construction. This eliminates the need for inputting necessary data while looking at the delivery document.

  The user terminal can access the quality information using the code data of the delivery form anytime and anywhere after receiving the delivery form. Since the quality information also records the specimen strength, the aging characteristics of durability, and the like, it is useful information that supports quality control for the concrete building on the user side. The user terminal can be configured to save the trouble of reading the code data each time by adding a function for storing the read code data and the accessed URL in association with the acquired quality information. is there.

  It is preferable that reading means for reading code data, such as a reader such as a matrix type two-dimensional code or an IC tag, can be connected to the user terminal. In addition, for a user terminal, in particular, a portable terminal, in order to download code data to other user terminals from a database server or a function for transmitting code data to other user terminals using e-mail etc. It is possible to add a function of transmitting necessary information (URL, access key to a database, etc.) from the portable terminal or from the database server to the other user terminal according to a command from the portable terminal. . Thereby, access and download to the quality information by the user terminal can be performed more smoothly.

  As described above, according to the present invention, quality information relating to the quality of ready-mixed concrete can be provided to the receiving side simply, accurately and reliably, and the receiving side is also extremely easy for quality information obtained after the ready-mixed concrete is manufactured. It is possible to provide a ready-mixed concrete quality control information system that can be obtained.

1 Internet network 2 Database server 3 Code resolution server 4 User terminal (portable terminal)
5 User terminal (personal computer)
10 Delivery Form 11 Quality Information 12 Code Data (Matrix Type 2D Code)

Claims (11)

A database server that stores quality information related to the quality of ready-mixed concrete and is connected to the Internet;
Each time the ready-mixed concrete is loaded on the transporter that transports the ready-mixed concrete, the only code that can specify the address indicating the location on the Internet where the quality information of the loaded ready-mixed concrete is stored in the database server. Code data generating means for generating data;
Code data holding means for holding the code data;
A user terminal that reads the code data from the code data holding means, identifies the address based on the code data, and accesses the address to obtain the quality information;
A code resolution server that associates the code data with the address;
Then, the user terminal reads the code data, accesses the code resolution server, acquires the address corresponding to the read code data, and accesses the acquired address to acquire the quality information. Configured to be possible,
Furthermore, the quality information includes two types of information (A) specified at the time when the ready-mixed concrete is loaded on the transport vehicle and information (B) specified after the time,
The information (B) is a ready-mixed concrete quality control information system characterized in that it includes at least the time-varying characteristics of a specimen having the same composition as the ready-mixed concrete loaded on the transport vehicle ,
The transporting vehicle is provided with a temperature sensor for measuring the temperature of the ready-mixed concrete, and the information (B) includes temperature data measured by the temperature sensor .   2. The ready-mixed concrete quality control information system according to claim 1, wherein the information (A) includes at least the unloading time when the ready-mixed concrete is loaded on a transport vehicle, and the information (B) includes at least delivery of ready-mixed concrete. Ready-mixed concrete quality control information system characterized by the inclusion of time.   2. The ready-mixed concrete quality management information system according to claim 1, wherein the information (B) includes a unit quantity calculation record per transport vehicle.   2. The ready-mixed concrete quality management information system according to claim 1, wherein the information (B) includes the temperature of ready-mixed concrete at the time of delivery.   5. The ready-mixed concrete quality management information system according to claim 1, wherein the code data is information that allows the user terminal to directly read the address. .   The ready-mixed concrete quality management information system according to any one of claims 1 to 5, wherein the code data is ucode.   7. The ready-mixed concrete quality control information system according to claim 1, wherein the code data holding means is any one of a document printed with the code data, an IC tag holding the code data, an IC seal, or an IC card. A ready-mixed concrete quality control information system.   8. The ready-mixed concrete quality control information system according to claim 7, wherein the code data is a bar code or a matrix type two-dimensional code.   The raw concrete quality control information system according to any one of claims 1 to 8, wherein the user terminal is a portable terminal that can read the code data and display the acquired quality information on a screen. A raw concrete quality control information system characterized by being.   10. The ready-mixed concrete quality management information system according to claim 9, wherein the portable terminal transmits the code data to another user terminal, or downloads the quality information from the database server to another user terminal. A raw concrete quality control information system characterized by having either a function of transmitting information necessary for the transmission from the portable terminal or the database server to the other user terminal.   The ready-mixed concrete quality management information system according to any one of claims 1 to 10, wherein the user terminal has a delivery notification function for notifying a delivery signal indicating that the ready-mixed concrete has been delivered via the Internet, A ready-mixed concrete quality management information system, wherein a delivery time is recorded as quality information in the database server based on the delivery signal.

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