Processing method for rubber particle concrete triaxial compression experimental data

A triaxial compression, rubber particle technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problem of high cost of triaxial testing machines, out of range, and sensitive devices for detecting rock force. and other problems to achieve the effect of accurate and effective treatment methods

Inactive Publication Date: 2016-07-20
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the popularization and application of rubber particle concrete, the physical and mechanical properties of rubber particle concrete have received more and more attention. At present, the common practice is to use rock triaxial testing machine to conduct triaxial compression experiments to obtain its mechanical parameters. Rock triaxial The testing machine has good pertinence for brittle materials such as rocks, and its device for detecting rock force is relatively sensitive, and the compression amount of standard rock specimens is extremely limited, but the compressive strength of rubber particle concrete is not very high, and Due to the high compression performance, the matching degree between rock triaxial testing machine and rubber particle concrete is limited. The triaxial testing machine developed for rubber particle concrete is very expensive and has no promotion value. Therefore, based on the existing experimental conditions It is of practical significance to process the experimental data
[0003] There are a series of problems in the triaxial compress

Method used

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  • Processing method for rubber particle concrete triaxial compression experimental data
  • Processing method for rubber particle concrete triaxial compression experimental data
  • Processing method for rubber particle concrete triaxial compression experimental data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Taking the rubber particle concrete standard specimen with a mass ratio of rubber particles of 15% as an example, the triaxial compression test specimen is carried out at a confining pressure of 0 MPa, and the initial height measurement value of the specimen is H 0 =101.00mm, the rubber added in the experiment is styrene-butadiene rubber, and the experiment obtained 5413 rows of raw data output from the triaxial compression test of rubber particle concrete, and the data of the first 30 rows are shown in Table 1. The original stress-displacement curve is shown in figure 2 shown.

[0060] Table 1 shows the output raw data (the first 30 lines) of the rubber particle concrete triaxial compression test, as follows:

[0061] serial number

1

2

3

4

5

6

7

8

9

10

11

12

13

time

the load

displacement

deformation 1

Metamorphosis 2

stress

Strain 1

Strain 2

Confining pressure ...

Embodiment 2

[0083] Taking the rubber particle concrete standard specimen with a mass ratio of 20% rubber particles as an example, the triaxial compression test specimen is carried out at a confining pressure of 8MPa, and the initial height measurement value of the specimen is H 0 =101.53mm, the rubber added in the experiment is styrene-butadiene rubber, and the experiment obtained a total of 11,577 rows of raw data output from the rubber particle concrete triaxial compression test. The first 30 rows of data are shown in Table 4. The output of the rubber particle concrete triaxial compression test The original stress-displacement curve is shown in Figure 4 shown.

[0084] Table 4 shows the output raw data (the first 30 lines) of the rubber particle concrete triaxial compression test, as follows:

[0085] serial number

1

2

3

4

5

6

7

8

9

10

11

12

13

time

the load

displacement

deformation 1

Metamorph...

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PUM

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Abstract

The invention discloses a processing method for rubber particle concrete triaxial compression experimental data. The processing method comprises the steps: obtaining displacement data points in a compression process, and converting displacement into corresponding axial strain; then according to different-degree fluctuation conditions of experimental data, carrying out primary moving average and secondary moving average of the overall data in a certain period, and drawing a stress-strain curve chart; and processing data having bias in the experimental process according to the development law of the curve, determining a turning point of the bias transiting to a compact state, and then obtaining a bias coefficient. Therefore, the physical and mechanical properties of rubber particle concrete under different mixing contents of rubber particles are studied, at the same time, the bias degree of a specimen having the bias condition is quantified, a reference value is provided for application of the rubber particle concrete in different environments, and an accurate and effective treatment method is provided for processing the rubber particle concrete triaxial compression experimental data.

Description

technical field [0001] The invention relates to a simulation experiment of rubber granule concrete, in particular to a processing method for triaxial compression test data of rubber granule concrete. Background technique [0002] With the popularization and application of rubber particle concrete, the physical and mechanical properties of rubber particle concrete have received more and more attention. At present, the common practice is to use rock triaxial testing machine to conduct triaxial compression experiments to obtain its mechanical parameters. Rock triaxial The testing machine has good pertinence for brittle materials such as rocks, and its device for detecting rock force is relatively sensitive, and the compression amount of standard rock specimens is extremely limited, but the compressive strength of rubber particle concrete is not very high, and Due to the high compression performance, the matching between the rock triaxial testing machine and the rubber particle ...

Claims

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Application Information

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IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0075G01N2203/0218G01N2203/0256G01N2203/0284
Inventor 乔卫国宋伟杰林登阁
Owner SHANDONG UNIV OF SCI & TECH
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