阅读说明：本技术 3d扫描测定混凝土拌合物性能的试验系统及方法 (Test system and method for measuring concrete mixture performance by 3D scanning ) 是由 陈尚伟 徐立斌 罗通 何信周 于 2021-08-17 设计创作，主要内容包括：本发明提供了一种3D扫描测定混凝土拌合物性能的试验系统及方法,该系统包括3D扫描仪、智能数据处理模块、匹配模板数据库、数据传输单元、数据储存模块,所述3D扫描仪与智能数据处理模块信号连接,智能数据处理模块分别与数据传输单元、匹配模板数据库信号连接,数据传输单元与数据储存模块信号连接。本发明通过智能数据处理模块进行智能匹配评定,精确度和准确率高,避免了人为的主观因素造成的偏差；避免了评定时间长使混凝土表面性质发生变化,影响参数评定的准确性；通过数据储存模块储存评定结果及其对应的三维模型,方便施工人员查看；评定过程与储存过程均实现智能化,提高了效率。(The invention provides a test system and a method for measuring concrete mixture performance by 3D scanning, wherein the system comprises a 3D scanner, an intelligent data processing module, a matching template database, a data transmission unit and a data storage module, the 3D scanner is in signal connection with the intelligent data processing module, the intelligent data processing module is in signal connection with the data transmission unit and the matching template database respectively, and the data transmission unit is in signal connection with the data storage module. According to the invention, intelligent matching evaluation is carried out through the intelligent data processing module, so that the accuracy and the precision are high, and the deviation caused by artificial subjective factors is avoided; the evaluation time is long, so that the surface property of the concrete is changed, and the accuracy of parameter evaluation is not influenced; the evaluation result and the corresponding three-dimensional model are stored through the data storage module, so that the evaluation result can be conveniently checked by a constructor; the evaluation process and the storage process are both intelligentized, and the efficiency is improved.)

1. The utility model provides a 3D scanning survey concrete mixture performance test system which characterized in that: the intelligent data processing system comprises a 3D scanner, an intelligent data processing module, a matching template database, a data transmission unit and a data storage module, wherein the 3D scanner is in signal connection with the intelligent data processing module, the intelligent data processing module is in signal connection with the data transmission unit and the matching template database respectively, and the data transmission unit is in signal connection with the data storage module.

2. The test system for 3D scanning measurement of concrete mixture properties according to claim 1, wherein: and the 3D scanner is used for scanning the newly-mixed test concrete to generate a 3D scanning model.

3. The test system for 3D scanning measurement of concrete mixture properties according to claim 1, wherein: the matching template database stores a plurality of matching templates containing various performance parameters of concrete; the intelligent data processing module can measure the slump and the expansion of a 3D scanning model of the 3D scanner, and can match the 3D scanning model of the 3D scanner with a matching template to obtain various performance parameters corresponding to the 3D scanning model.

4. The test system for 3D scanning measurement of concrete mixture properties according to claim 3, wherein: the performance parameters include slump, expansion, cohesiveness and water retention.

5. The test system for 3D scanning measurement of concrete mixture properties according to claim 3, wherein: the intelligent data processing module is used for switching to an intelligent evaluation mode or a manual evaluation mode when evaluating the cohesiveness and the water-retaining property of the test concrete.

6. The test system for 3D scanning measurement of concrete mixture properties according to claim 5, wherein: and under the intelligent evaluation mode, the intelligent data processing module matches the 3D scanning model with the matching template through a pattern matching algorithm.

7. The test system for 3D scanning measurement of concrete mixture properties according to claim 5, wherein: in the manual evaluation mode, experiential testers evaluate the cohesiveness and the water retention of the fresh concrete, and the evaluation result is input into a matching template database for adding and storing.

8. The test system for 3D scanning measurement of concrete mixture properties according to claim 1, wherein: the data transmission unit transmits the 3D scanning model and various performance parameters, test time, environment temperature and humidity and test places corresponding to the 3D scanning model to the data storage module for storage through a wireless network or a wired network.

9. The test method for measuring the performance of the concrete mixture by using the 3D scanning test system for measuring the performance of the concrete mixture according to any one of claims 1 to 8 is characterized by comprising the following steps: comprises the following steps of (a) carrying out,

scanning the state of the freshly mixed concrete mixture after the slump test by adopting a 3D scanner to generate a 3D scanning model;

step two, measuring the slump and the expansion of a 3D scanning model of the 3D scanner through an intelligent data processing module;

matching the 3D scanning model with a matching template stored in a matching template database through an intelligent data processing module to obtain the cohesiveness and the water retention of the fresh concrete;

and step four, adopting a data transmission unit to transmit the slump, the expansion degree, the cohesiveness, the water retention, the 3D model, the test time, the environment temperature and humidity and the test place to a data storage module for storage through a wireless network or a wired network.

10. The test method for 3D scanning to determine the properties of concrete mixtures according to claim 9, characterized in that:

and step three, when the cohesiveness and the water retention are deviated from the actual condition or new performance requirements are generated, the intelligent data processing module evaluates the cohesiveness and the water retention or the new performance requirements by experiential testers and inputs the evaluation data into the matching template database for storage.

Technical Field

The invention relates to the technical field of building material performance testing, in particular to a testing system and method for measuring concrete mixture performance by 3D scanning.

Background

At present, concrete is widely used in building projects such as houses, roads, bridges and the like, and the performance of the concrete directly influences the construction quality. In various construction states, the requirements for various performance indexes of concrete are different. The workability of the fresh concrete occupies an important position in various technical indexes of the fresh concrete. The workability of the concrete comprises the aspects of fluidity, plasticity, stability, easiness and the like, the concrete with different purposes has fluidity, cohesiveness, water-retaining property and the like with different requirements, wherein the fluidity is generally expressed by slump, the cohesiveness and the water-retaining property are evaluated by the subjective experience of testers, the time of experts with abundant experience is limited, most of evaluation experiments cannot be directly completed by the experts, the experience of common testers is limited, certain deviation is inevitable during evaluation, and the objective and real evaluation of the performance of the concrete mixture is influenced. Therefore, the performance index of the concrete may not be consistent with the actual use, and the normal operation of the construction process and the building quality may be affected. For example, if concrete is pumped to a certain height, pumping parameters need to be adjusted in time according to the fluidity of the concrete, and if experimenters have deviation in the evaluation of the fluidity (slump), the pumping parameters cannot be coordinated quickly and accurately, so that the construction efficiency is affected; in extreme cases, concrete can eventually be unable to be pumped to that height, which can interfere with the proper operation of the construction.

Chinese patent publication No. CN110162925A discloses a method for evaluating the quality of concrete engineering of an urban underground comprehensive pipe gallery, which comprises the following steps: scanning the spatial data of the concrete engineering surface by adopting a 3D laser to generate a point cloud data format; importing the point cloud data into BIM design software civil3D, loading a concrete construction design model by using BIM design software civil3D, and comparing the point cloud data with the design model; and finally, based on the comparison result, comparing the comparison result with the established whole-area surface quality evaluation standard of the concrete engineering, and evaluating the quality of the concrete engineering.

The method disclosed by the patent is applied to the technology of the evaluation of the constructed concrete engineering, a preset design model does not exist for the evaluation of the performance index of the concrete, and the method can only measure and compare the size, so that the method cannot be used for evaluating multiple indexes such as cohesiveness, water-retaining property and the like.

Disclosure of Invention

In order to solve the technical problems, the invention provides a test system and a test method for measuring the performance of a concrete mixture by 3D scanning.

The invention is realized by the following technical scheme.

The invention provides a test system for measuring concrete mixture performance by 3D scanning, which comprises a 3D scanner, an intelligent data processing module, a matching template database, a data transmission unit and a data storage module, wherein the 3D scanner is in signal connection with the intelligent data processing module, the intelligent data processing module is in signal connection with the data transmission unit and the matching template database respectively, and the data transmission unit is in signal connection with the data storage module.

And the 3D scanner is used for scanning the newly-mixed test concrete to generate a 3D scanning model.

The precision of the 3D scanning model generated by the 3D scanner is not lower than 0.1 mm.

The matching template database stores a plurality of matching templates containing various performance parameters of concrete; the intelligent data processing module can measure the slump and the expansion of a 3D scanning model of the 3D scanner, and can match the 3D scanning model of the 3D scanner with a matching template to obtain various performance parameters corresponding to the 3D scanning model.

The performance parameters include slump, expansion, cohesiveness and water retention.

The intelligent data processing module is used for switching to an intelligent evaluation mode or a manual evaluation mode when evaluating the cohesiveness and the water-retaining property of the test concrete.

And under the intelligent evaluation mode, the intelligent data processing module matches the 3D scanning model with the matching template through a pattern matching algorithm.

In the manual evaluation mode, experiential testers evaluate the cohesiveness and the water retention of the fresh concrete, and the evaluation result is input into a matching template database for adding and storing.

The data transmission unit transmits the 3D scanning model and various performance parameters, test time, environment temperature and humidity and test places corresponding to the 3D scanning model to the data storage module for storage through a wireless network or a wired network.

The invention also provides a test method for measuring the concrete mixture performance by adopting the test system for measuring the concrete mixture performance by 3D scanning, which comprises the following steps:

scanning the state of the freshly mixed concrete mixture after the slump test by adopting a 3D scanner to generate a 3D scanning model;

step two, measuring the slump and the expansion of a 3D scanning model of the 3D scanner through an intelligent data processing module;

matching the 3D scanning model with a matching template stored in a matching template database through an intelligent data processing module to obtain the cohesiveness and the water retention of the fresh concrete;

and step four, adopting a data transmission unit to transmit the slump, the expansion degree, the cohesiveness, the water retention, the 3D model, the test time, the environment temperature and humidity and the test place to a data storage module for storage through a wireless network or a wired network.

And step three, when the cohesiveness and the water retention are deviated from the actual condition or new performance requirements are generated, the intelligent data processing module evaluates the cohesiveness and the water retention or the new performance requirements by experiential testers and inputs the evaluation data into the matching template database for storage.

The invention has the beneficial effects that:

the invention has the following advantages: (1) the three-dimensional model of the test concrete is directly generated by adopting the 3D scanner, and intelligent matching evaluation is carried out through the intelligent data processing module, so that the accuracy and the precision are high, and the deviation caused by artificial subjective factors is avoided; (2) the evaluation time is long, so that the surface property of the concrete is changed, and the accuracy of parameter evaluation is not influenced; (3) the evaluation result and the corresponding three-dimensional model are stored through the data storage module, so that the evaluation result can be conveniently checked by a constructor; (4) the evaluation process and the storage process are both intelligentized, so that the efficiency is improved; (5) the accuracy, the accuracy and the richness of intelligent assessment are gradually improved in the using process, and the reliability of the system is better and better along with the use.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is an example of the good condition of the blend in a calculation example of the present invention.

FIG. 3 is a general example of the mix status in a calculation example of the present invention.

FIG. 4 is an example of poor blend condition in a calculation example of the present invention.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

Fig. 1 shows a schematic structural diagram of the present invention:

the invention provides a test system for measuring concrete mixture performance by 3D scanning, which comprises a 3D scanner, an intelligent data processing module, a matching template database, a data transmission unit and a data storage module, wherein the 3D scanner is in signal connection with the intelligent data processing module, the intelligent data processing module is in signal connection with the data transmission unit and the matching template database respectively, and the data transmission unit is in signal connection with the data storage module.

The principle is as follows: scanning the test concrete by using a 3D scanner to generate a 3D scanning model; through signal connection, the intelligent data processing module can acquire the 3D scanning model and match the 3D scanning model with a matching template database, so that concrete performance parameters closest to the 3D scanning model are acquired from the matching template; the data transmission unit transmits the 3D scanning model and the corresponding performance parameters to the data storage module for storage, so that construction personnel can conveniently call and check the data.

The invention has the following advantages: (1) the three-dimensional model of the test concrete is directly generated by adopting the 3D scanner, and intelligent matching evaluation is carried out through the intelligent data processing module, so that the accuracy and the precision are high, and the deviation caused by artificial subjective factors is avoided; (2) the evaluation time is long, so that the surface property of the concrete is changed, and the accuracy of parameter evaluation is not influenced; (3) the evaluation result and the corresponding three-dimensional model are stored through the data storage module, so that the evaluation result can be conveniently checked by a constructor; (4) the evaluation process and the storage process are both intelligentized, and the efficiency is improved.

According to the invention, the 3D scanner is applied to generate the three-dimensional model of the test concrete, so that the 3D scanning precision is higher, and the minimum size is identified to be 0.02 mm; 3D scanning can measure the depth of field of an image; the method can be used for evaluating the performance of the concrete mixture by quantitatively calculating the specific surface area of the mixture after the slump test of the whole mixture, the distribution condition of coarse aggregate and the slurry wrapping performance of slurry; thus, unlike the prior art which is only capable of measuring size related parameters (e.g., slump, spread, output flow rate), the present invention can measure: slump, expansion, specific surface area after slump, coarse aggregate distribution and the like. And the calculation model quantitatively calculates the surface area of the concrete mixture after the slump test and measures the slurry wrapping performance of the concrete mixture. FIGS. 2-4 are calculated examples, and in FIG. 2, the mixture is in good condition, the coarse aggregate is fully coated with slurry, and the surface area is small; in FIG. 3, the state of the mixture is general, the slurry coating amount on the surface of the coarse aggregate is small, and the surface area is moderate; in FIG. 4, the mixture condition was poor, the coarse aggregate surface was not coated with slurry, and the surface area was the largest. In practical application, the surface area can be quantitatively represented, so that the state of the mixture can also be correspondingly quantitatively represented.

This use and nature of 3D scanners is not documented in the prior art, and is one of the salient features and distinct advances in the present invention.

And the 3D scanner is used for scanning the newly-mixed test concrete to generate a 3D scanning model.

The precision of the 3D scanning model generated by the 3D scanner is not lower than 0.1 mm. The method is convenient to obtain high-quality images, and the accuracy of evaluating indexes such as concrete cohesiveness, water retention and the like is ensured.

The matching template database stores a plurality of matching templates containing various performance parameters of concrete; the intelligent data processing module can measure the slump and the expansion of a 3D scanning model of the 3D scanner, and can match the 3D scanning model of the 3D scanner with a matching template to obtain various performance parameters corresponding to the 3D scanning model. The intelligent data processing module is used for carrying out intelligent matching evaluation, the evaluation efficiency is high, the artificial deviation is avoided, and the accuracy and the precision are improved.

The performance parameters include slump, expansion, cohesiveness and water retention.

The slump and the expansion are obtained by directly measuring the 3D scanning model, the parameters such as the cohesiveness, the water-retaining property and the like are obtained from the matching template through the intelligent data processing module, each performance parameter can be respectively matched with the image characteristics in a targeted manner (the image characteristics comprise particle combination, slurry state, the wrapping state of slurry on coarse aggregate, light reflection degree, color gradation and the like), the matching accuracy of each performance parameter is high, the combination form between the matching template and the 3D scanning model is flexible, each performance parameter can be independently evaluated, and the accuracy is improved. In the prior art (CN110162925A), the scanning lattice data and the construction design model are in a one-to-one correspondence relationship, and if the method is applied to the field of the present application, the 3D scanning model of the test concrete can only be matched with the stored design model to determine the deviation range of the slump, the expansion and the design of the test concrete, and the method cannot directly determine the specific value, and cannot be used for determining the cohesiveness, the water retention property, and the like.

The intelligent data processing module is used for switching to an intelligent evaluation mode or a manual evaluation mode when evaluating the cohesiveness and the water-retaining property of the test concrete.

And under the intelligent evaluation mode, the intelligent data processing module matches the 3D scanning model with the matching template through a pattern matching algorithm.

In the manual evaluation mode, experiential testers evaluate the cohesiveness and the water retention of the fresh concrete, and the evaluation result is input into a matching template database for adding and storing.

In most cases, an intelligent evaluation mode can be adopted, the efficiency is high, and human errors are avoided; when the cohesiveness and the water retention deviate from the actual through the intelligent evaluation result or new performance requirements appear, the manual evaluation mode is switched, experiential testers evaluate the cohesiveness and the water retention, and the matching template database is further perfected through the evaluation result, so that the accuracy, the accuracy and the richness of the intelligent evaluation are gradually improved in the using process of the system, and the labor time of the experiential testers is saved.

The data transmission unit transmits the 3D scanning model and various performance parameters, test time, environment temperature and humidity and test places corresponding to the 3D scanning model to the data storage module for storage through a wireless network or a wired network. Constructors can trace the experiment time, the experiment conditions and the like of each 3D scanning model conveniently through data, supervision of the experiment process is achieved, and reliability is improved.

The invention also provides a test method for measuring the concrete mixture performance by adopting the test system for measuring the concrete mixture performance by 3D scanning, which comprises the following steps:

scanning the state of the freshly mixed concrete mixture after the slump test by adopting a 3D scanner to generate a 3D scanning model;

step two, measuring the slump and the expansion of a 3D scanning model of the 3D scanner through an intelligent data processing module;

matching the 3D scanning model with a matching template stored in a matching template database through an intelligent data processing module to obtain the cohesiveness and the water retention of the fresh concrete;

and step four, adopting a data transmission unit to transmit the slump, the expansion degree, the cohesiveness, the water retention, the 3D model, the test time, the environment temperature and humidity and the test place to a data storage module for storage through a wireless network or a wired network.

And step three, when the cohesiveness and the water retention are deviated from the actual condition or new performance requirements are generated, the intelligent data processing module evaluates the cohesiveness and the water retention or the new performance requirements by experiential testers and inputs the evaluation data into the matching template database for storage. The accuracy, the accuracy and the richness of intelligent assessment can be improved gradually in the using process, and the reliability of the system can be better and better along with the use.