A type and grading method and system for recycled concrete

Abstract

The present invention provides a classification and grading method and system for recycled concrete, wherein the method comprises: checking the auxiliary materials for proportioning and retrieving the classification and grading model; inputting the marking data of the recycled aggregate into the classification and grading model to obtain the proportioning scheme. The classification and grading method and system for recycled concrete of the present invention generate recycled concrete based on the classification and grading method, improve the performance of recycled concrete, so as to absorb a large amount of construction waste, solve the source of concrete raw materials used in road traffic engineering, reduce the cost of concrete, and promote the engineering application of recycled concrete.

Description

Technical Field

[0001] The invention relates to the technical field of recycled concrete, and in particular to a type and grading method and system for recycled concrete. Background Art

[0002] The construction, reconstruction, and demolition of various road traffic projects have generated a large amount of waste concrete; the traditional method of treating waste concrete is direct landfill or as filling material. The emergence of recycled aggregates is to a certain extent the reuse of waste concrete, but the basic mechanical properties of the existing concrete after the application of recycled aggregates are far inferior to those of ordinary concrete; the main reasons are: 1. Recycled aggregates are mainly made of crushed construction waste, composed of natural aggregates and old mortar. The old mortar has many pores and low strength, which leads to high crushing index and high water absorption of recycled aggregates. 2. The interface transition zone is the starting point of concrete destruction and the weak point of concrete materials. The recycled concrete prepared with recycled aggregates has two layers of interface transition zones: the old interface transition zone between the old mortar and the natural aggregate and the new interface transition zone between the recycled aggregate and the new mortar. Therefore, how to proportion the recycled aggregate to form a better recycled concrete has always been an important research issue in the recycling of waste concrete. Summary of the invention

[0003] One of the purposes of the present invention is to provide a method and system for the classification and grading of recycled concrete. Based on the classification and grading method, recycled concrete is generated to improve the performance of recycled concrete, so as to absorb a large amount of construction waste, solve the source of concrete raw materials used in road traffic projects, reduce concrete costs, and promote the engineering application of recycled concrete.

[0004] An embodiment of the present invention provides a method for grading recycled concrete, comprising:

[0005] Check the proportion of auxiliary materials and retrieve the classification and grading model;

[0006] Input the marked data of recycled aggregate into the classification and grading model to obtain the mix ratio scheme.

[0007] Preferably, the checking step comprises:

[0008] According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups;

[0009] Each verification group is checked against each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes.

[0010] Preferably, the rules for retrieving the classification and grading model are as follows:

[0011] Taking the application scenarios of recycled concrete as the object, the verification groups that have passed the verification are initially screened;

[0012] Conduct secondary screening based on the performance evaluation of the predicted outputs corresponding to the verified groups that have passed the verification;

[0013] According to the cost data and material parameter data of each ratio auxiliary material in the verification group after the secondary screening, the ratio information, performance parameter information of the output and benefit information corresponding to each verification group are generated, and the evaluation information is generated;

[0014] Output the ratio information, performance parameter information, benefit information and evaluation information of each verification group to the user's terminal;

[0015] Receive the verification group selected by the user through the terminal and retrieve the corresponding classification and gradation model from the classification and gradation model library according to the verification group.

[0016] Preferably, the identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity and a source code indicating the source.

[0017] Preferably, the method for grading recycled concrete further includes: modifying the mix ratio scheme according to test data of products prepared by the mix ratio scheme.

[0018] The present invention also provides a type and gradation system for recycled concrete, comprising: a checking and retrieving unit and a scheme determining unit;

[0019] Among them, the verification and retrieval unit verifies the auxiliary materials for the mix and retrieves the classification and grading model; the scheme determination unit inputs the marked data of the recycled aggregate into the classification and grading model to obtain the mix scheme.

[0020] Preferably, the checking step comprises:

[0021] According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups;

[0022] Each verification group is checked against each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes.

[0023] Preferably, the rules for retrieving the classification and grading model are as follows:

[0024] Taking the application scenarios of recycled concrete as the object, the verification groups that have passed the verification are initially screened;

[0025] Conduct secondary screening based on the performance evaluation of the predicted outputs corresponding to the verified groups that have passed the verification;

[0026] According to the cost data and material parameter data of each ratio auxiliary material in the verification group after the secondary screening, the ratio information, performance parameter information of the output and benefit information corresponding to each verification group are generated, and the evaluation information is generated;

[0027] Output the ratio information, performance parameter information, benefit information and evaluation information of each verification group to the user's terminal;

[0028] Receive the verification group selected by the user through the terminal and retrieve the corresponding classification and gradation model from the classification and gradation model library according to the verification group.

[0029] Preferably, the identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity and a source code indicating the source.

[0030] Preferably, the recycled concrete grading system further includes: a correction unit; the correction unit corrects the mix ratio scheme according to the test data of the product mixed by the mix ratio scheme.

[0031] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0032] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 Schematic diagram of a type and grading method of recycled concrete in an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of a type and grading system of recycled concrete in an embodiment of the present invention;

[0036] Figure 3 Schematic diagram of another type and grading system of recycled concrete in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0038] The embodiment of the present invention provides a method for grading recycled concrete, such as Figure 1 As shown, including:

[0039] Step 1: Check the proportion of auxiliary materials and retrieve the classification and grading model;

[0040] Step 2: Input the marked data of recycled aggregate into the classification and grading model to obtain the mix ratio scheme.

[0041] Before proportioning, the auxiliary materials prepared by the user are first checked to determine whether the auxiliary materials meet the requirements and how many proportion options there are, so as to facilitate the selection of a proportioning scheme that meets the user's requirements from a variety of proportion options; for the auxiliary materials after verification, the corresponding classification and grading model is adaptively called; in the preliminary preparation stage, professionals analyze and construct according to each group of auxiliary materials and different proportioning schemes, and obtain the classification and grading model corresponding to each group of auxiliary materials; in the configuration stage, according to different auxiliary material combinations, the corresponding classification and grading model is adaptively called to improve the accuracy and effectiveness of the configuration; then the classification and grading model is corresponding to the auxiliary materials. Input the label data of recycled aggregate and auxiliary materials, and obtain the output of the classification and grading model. The classification and grading model outputs a mix ratio scheme. There can be multiple mix ratio schemes, that is, the matching recycled concrete can be configured through the mix ratio schemes. However, the performance of the recycled concrete mixed after each mix ratio scheme is different. In order to facilitate the user's selection, the mix ratio scheme can be marked. The marked information includes: performance parameters of the recycled concrete, including: impermeability, setting time range, compressive strength, freeze-thaw resistance, ultimate tensile value, etc. Among them, the classification and grading model is constructed in advance by professionals based on a large amount of mix ratio data analysis;

[0042] The verification steps include:

[0043] According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups;

[0044] Each verification group is checked against each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes.

[0045] The minimum number of auxiliary materials used in the verification is preset by the system; the minimum number of auxiliary materials is statistically analyzed based on the analysis of the auxiliary materials used in the configuration of various existing recycled concretes; then, when applying the classification and grading method of the present invention, the proportioned auxiliary materials are grouped according to the minimum number of auxiliary materials. The grouping here is a reused grouping, that is, the same auxiliary materials can exist between groups, as long as the number of auxiliary materials in each group after grouping is greater than or equal to the minimum number of auxiliary materials; for example: the number of auxiliary materials provided by the user is 5, and the minimum number of auxiliary materials is set to 4, then it can be divided into 5 groups. The verification library stores various qualified groups, and the configuration of aggregate to concrete can be successfully completed according to each qualified group. By verifying the verification group through each qualified group, it can be determined whether the auxiliary materials prepared by the user can be matched to realize the configuration of concrete, and all combinations can be determined therefrom;

[0046] Among them, the rules for retrieving the classification and grading model are as follows:

[0047] Taking the application scenarios of recycled concrete as the object, the verification groups that have passed the verification are initially screened; the initial screening can be specifically performed by configuring the necessary auxiliary material table and the interference auxiliary material table corresponding to each application scenario; the necessary auxiliary material table configures the auxiliary materials that must be required for recycled concrete for this application scenario; the interference auxiliary material table configures the auxiliary materials that must not appear in recycled concrete for this application scenario; the necessary auxiliary material table and the interference auxiliary material table are both analyzed and constructed by professionals for the configuration of concrete used in various application scenarios; among them, the application scenarios include: building exterior walls, load-bearing walls, bridge decks, bridge piers, elevated roads, etc.; by clarifying the user's application scenarios for recycled concrete, and then calling the corresponding necessary auxiliary material table and interference auxiliary material table; determine whether there are auxiliary materials in the necessary auxiliary material table and whether there are auxiliary materials in the interference auxiliary material table in each verification group; when there are auxiliary materials in the interference auxiliary material table, the verification group will be eliminated, and when there are no auxiliary materials in the necessary auxiliary material table, the verification group will also be eliminated;

[0048] The performance evaluation of the predicted output corresponding to the verified inspection group is used for secondary screening; the secondary screening uses the optimal output of each inspection group as the comparison and screening basis; the performance evaluation includes: impermeability, setting time range value, compressive strength, freeze-thaw resistance, ultimate tensile value, etc.; according to the auxiliary materials in each group, various proportion schemes corresponding to the inspection group and the output corresponding to each proportion are queried from the output performance comparison library, and the parameter data corresponding to each performance of the optimal output are extracted; each performance parameter data is quantified to obtain the corresponding quantified value, and then the comprehensive product of the weight corresponding to each performance parameter and the quantification is used as the total performance evaluation value; the top N groups of the total performance evaluation value are extracted and retained to complete the secondary screening; it is also possible to select a single performance parameter for secondary screening according to the user configuration; wherein, the output performance comparison library is pre-configured and constructed based on the performance parameter data of the best output under each auxiliary material combination recorded in the historical records;

[0049] According to the cost data and material parameter data of each proportion auxiliary material in the verification group after the secondary screening, the proportion information, output performance parameter information and benefit information corresponding to each verification group are generated, and the evaluation information is generated; wherein the proportion information, output performance parameter information and benefit information are in a corresponding relationship, and the proportion information and the corresponding output performance parameter information are determined through the output performance comparison library, and the benefit information is determined by the cost data of each proportion auxiliary material and the proportion information of each proportion scheme, and the cost of each cubic meter of recycled concrete is calculated; the evaluation information includes: a total performance evaluation value and a comprehensive recommendation value; wherein the total performance evaluation value is to quantify each performance parameter data through a preset quantitative model, obtain the corresponding quantitative value, and then use the preset weight corresponding to each performance parameter and the product of the quantification as the total performance evaluation value; wherein the quantitative model and the weight are pre-configured by professionals; the comprehensive recommendation value is the weighted sum of the benefit recommendation coefficient divided by each cubic meter of recycled concrete and the total performance evaluation value;

[0050] Output the ratio information, performance parameter information, benefit information and evaluation information of each verification group to the user's terminal;

[0051] Receive the verification group selected by the user through the terminal and retrieve the corresponding classification and gradation model from the classification and gradation model library according to the verification group.

[0052] The identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity and a source code indicating the source.

[0053] In order to better optimize the mix ratio scheme, in one embodiment, the classification and grading method of recycled concrete also includes: modifying the mix ratio scheme according to the test data of the product prepared by the mix ratio scheme. Specifically, it is as follows: extracting features from the test data to obtain multiple feature values; constructing an analysis data set according to the extracted feature values; retrieving a correction library corresponding to the mix ratio scheme; matching the analysis data set with the retrieved parameter set corresponding to each correction scheme in the correction library, and extracting the matching correction scheme; revising the mix ratio scheme based on the correction scheme; the correction scheme stipulates the adjustment value of the ratio of each auxiliary material in the mix ratio scheme. In specific implementation, the implementation of the correction is a long-term matter, that is, the recycled concrete in the project is continuously proportioned, that is, at least beyond the complete solidification time of the recycled concrete, and the mix ratio scheme of other concrete in the later stage is adjusted through the test data of the early concrete sampling products, mainly to achieve fine-tuning; the input of the test data can be input by the PC terminal set in the concrete testing room, and input after the test personnel have completed the test of the sampled products.

[0054] In order to achieve automatic acquisition of auxiliary material data, in one embodiment, the method for grading recycled concrete further includes:

[0055] The auxiliary materials in the auxiliary material storage area are identified by an auxiliary material identification device arranged in the auxiliary material storage area to obtain information on the proportion of auxiliary materials;

[0056] Among them, the auxiliary material identification device includes: an image recognition device and / or an RFID identification device; when the RFID identification device is used, it needs to be used in conjunction with the RFID tags corresponding to each auxiliary material, and the RFID tags are attached to the storage container or packaging bag of the auxiliary material by the staff in advance; when the image recognition device is used, the image of the auxiliary storage area can be collected, and then the image can be identified as a standard object based on the standard object library, and then each auxiliary material can be determined based on the identified standard object; in addition, it can also be identified with the QR code or name tag attached to the storage container or packaging bag of the auxiliary material to determine each auxiliary material.

[0057] In order to realize the selection and communication of the proportioning scheme, in one embodiment, after the proportioning scheme is obtained through the classification and grading model, the proportioning scheme is sent to the first terminal reserved by the management personnel;

[0058] After receiving the matching scheme confirmation operation sent back by the first terminal, the final confirmed matching scheme is sent to the second terminal at the matching site; the second terminal outputs the matching scheme;

[0059] Among them, the first terminal includes: one or more combinations of mobile phones, tablet computers or PC computers; the second terminal includes: speakers and / or large display screens; the output method of the second terminal can be to play a ratio scheme through a speaker or display a ratio scheme on a large screen.

[0060] In order to track the execution of the mix ratio scheme, in one embodiment, the method for grading recycled concrete further includes:

[0061] The proportioning actions of the staff are monitored by the monitoring equipment installed in the proportioning area, and when there is an abnormal proportion, a reminder message is output through the second terminal.

[0062] Among them, the judgment of abnormal ratio includes:

[0063] Intercept the area around the proportioning equipment to obtain the area image;

[0064] When the worker in the area image is identified to start adding items to the proportioning equipment, the timing starts;

[0065] Based on the preset standard image library, identify the items added by the staff into the proportioning equipment, determine the item information and record it to form an addition table;

[0066] When the timing reaches the preset timing threshold, if the item information in the added table is inconsistent with the material information in the matching scheme or exceeds the established allowable range threshold, it is determined that a matching abnormality occurs;

[0067] Among them, the item information includes: what kind of auxiliary materials or recycled aggregates, the amount added, etc.;

[0068] In addition, when a ratio abnormality occurs, a corresponding reminder message is generated based on the difference between the item information in the addition table and the material information in the ratio plan.

[0069] In order to ensure the accuracy of the correction, in one embodiment, it is necessary to introduce the additive table corresponding to the batch of sampling products during the correction to ensure the accuracy of the correction. The specific steps of the correction are to extract features from the additive table, integrate the extracted feature values ​​with the feature values ​​extracted from the detection data to form an analysis data set, and then determine the specific correction plan based on the analysis data set and the integrated analysis library.

[0070] In order to improve the scope of application of classification and grading, when the verification library is not fully constructed or configured in open mode, the incomplete matching method can be used for verification, specifically:

[0071] First, each auxiliary material in the verification group is matched with each auxiliary material in the qualified group, and the matched ones are associated and deleted from their respective groups;

[0072] When the auxiliary materials in the verification group are not empty after deletion, each auxiliary material in the verification group is mapped one by one with the auxiliary materials in the qualified group to form a plurality of mapping items to be verified;

[0073] Obtain relevant data corresponding to the two auxiliary materials of the mapping item from the third-party platform;

[0074] According to the preset keyword library, feature extraction is performed on the relevant data and a feature parameter set corresponding to the auxiliary material is constructed;

[0075] Calculate the similarity between two feature parameter sets;

[0076] When the similarity is greater than a preset threshold, it is determined that the two are similar and can be considered to be matched in the open mode;

[0077] Among them, relevant data include: application field, characterization data (melting point, boiling point, density, etc.), effects produced after application, etc.;

[0078] When each auxiliary material in the verification group matches each auxiliary material in the qualified group, the verification is passed.

[0079] The present invention also provides a type and grading system for recycled concrete, such as Figure 2 As shown, it includes: a checking and retrieving unit 1 and a scheme determining unit 2;

[0080] Among them, the checking and retrieving unit 1 checks the auxiliary materials for the proportion and retrieves the classification and grading model; the scheme determination unit 2 inputs the marked data of the recycled aggregate into the classification and grading model to obtain the proportion scheme.

[0081] The verification steps include:

[0082] According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups;

[0083] Each verification group is checked against each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes.

[0084] Among them, the rules for retrieving the classification and grading model are as follows:

[0085] Taking the application scenarios of recycled concrete as the object, the verification groups that have passed the verification are initially screened;

[0086] Conduct secondary screening based on the performance evaluation of the predicted outputs corresponding to the verified groups that have passed the verification;

[0087] According to the cost data and material parameter data of each ratio auxiliary material in the verification group after the secondary screening, the ratio information, performance parameter information of the output and benefit information corresponding to each verification group are generated, and the evaluation information is generated;

[0088] Output the ratio information, performance parameter information, benefit information and evaluation information of each verification group to the user's terminal;

[0089] Receive the verification group selected by the user through the terminal and retrieve the corresponding classification and gradation model from the classification and gradation model library according to the verification group.

[0090] The identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity and a source code indicating the source.

[0091] In one embodiment, Figure 3 As shown, the recycled concrete classification and grading system further includes: a correction unit 3; the correction unit 3 corrects the mix ratio scheme according to the test data of the product mixed by the mix ratio scheme.

[0092] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for grading recycled concrete, characterized in that: include: Check the proportion of auxiliary materials and retrieve the classification and grading model; Input the marked data of recycled aggregate into the classification and grading model to obtain the mix ratio scheme; The verification steps include: According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups; Verify each verification group with each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes the verification; When the verification library is not fully constructed or configured in open mode, the incomplete matching method is used for verification, specifically: First, each auxiliary material in the verification group is matched with each auxiliary material in the qualified group, and the matched ones are associated and deleted from their respective groups; When the auxiliary materials in the verification group are not empty after deletion, each auxiliary material in the verification group is mapped one by one with the auxiliary materials in the qualified group to form a plurality of mapping items to be verified; Obtain relevant data corresponding to the two auxiliary materials of the mapping item from the third-party platform; According to the preset keyword library, feature extraction is performed on the relevant data and a feature parameter set corresponding to the auxiliary material is constructed; Calculate the similarity between two feature parameter sets; When the similarity is greater than a preset threshold, the two are determined to be similar and considered to be matched in the open mode; Among them, relevant data include: application field, characterization data, and effects produced after application; When each auxiliary material in the verification group matches each auxiliary material in the qualified group, the verification is passed.

2. The method for grading recycled concrete according to claim 1, characterized in that: The rules for retrieving the classification and grading model are as follows: Taking the application scenarios of recycled concrete as the object, the verification groups that have passed the verification are initially screened; Conduct secondary screening based on the performance evaluation of the predicted outputs corresponding to the verified groups that have passed the verification; According to the cost data and material parameter data of each ratio auxiliary material in the verification group after the secondary screening, the ratio information, performance parameter information of the output and benefit information corresponding to each verification group are generated, and the evaluation information is generated; Output the ratio information, performance parameter information, benefit information and evaluation information of each verification group to the user's terminal; Receive the verification group selected by the user through the terminal and retrieve the corresponding classification and gradation model from the classification and gradation model library according to the verification group.

3. The method for grading recycled concrete according to claim 1, characterized in that: The identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity, and a source code indicating the source.

4. A grading system for recycled concrete, characterized in that: include: Check the retrieval unit and the plan determination unit; Among them, the checking and retrieving unit checks the auxiliary materials for the proportion and retrieves the classification and grading model; the scheme determination unit inputs the marked data of the recycled aggregate into the classification and grading model to obtain the proportion scheme; The verification steps include: According to the preset minimum number of auxiliary materials, the proportioned auxiliary materials are grouped to obtain multiple verification groups; Verify each verification group with each qualified group in the verification library one by one. If there is a qualified group that is the same as the verification group, the verification group passes the verification; When the verification library is not fully constructed or configured in open mode, the incomplete matching method is used for verification, specifically: First, each auxiliary material in the verification group is matched with each auxiliary material in the qualified group, and the matched ones are associated and deleted from their respective groups; When the auxiliary materials in the verification group are not empty after deletion, each auxiliary material in the verification group is mapped one by one with the auxiliary materials in the qualified group to form a plurality of mapping items to be verified; Obtain relevant data corresponding to the two auxiliary materials of the mapping item from the third-party platform; According to the preset keyword library, feature extraction is performed on the relevant data and a feature parameter set corresponding to the auxiliary material is constructed; Calculate the similarity between two feature parameter sets; When the similarity is greater than a preset threshold, the two are determined to be similar and considered to be matched in the open mode; Among them, relevant data include: application field, characterization data, and effects produced after application; When each auxiliary material in the verification group matches each auxiliary material in the qualified group, the verification is passed.

5. The recycled concrete grading system according to claim 4, characterized in that: The identification data includes: one or more combinations of a type code indicating the type of the recycled aggregate, a particle size, a density, a hardness, a viscosity, and a source code indicating the source.

6. The recycled concrete grading system according to claim 4, characterized in that: Also includes: Correction unit; The correction unit corrects the proportioning scheme according to the detection data of the product prepared by the proportioning scheme.

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