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Cement-based test piece in-situ loading instrument for industrial X-CT (X-ray computered tomography) and use method thereof

An X-CT, cement-based technique used in materials analysis using radiation, among others

Inactive Publication Date: 2013-02-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of industrial X-CT scanning, provide a kind of in-situ loading instrument capable of observing the initiation and expansion of cracks in cement-based specimens in situ, and solve the problem of achieving 360° without affecting the CT scanning effect and loading conditions. Rotation, and the relationship between deformation and crack initiation and expansion can be established

Method used

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  • Cement-based test piece in-situ loading instrument for industrial X-CT (X-ray computered tomography) and use method thereof
  • Cement-based test piece in-situ loading instrument for industrial X-CT (X-ray computered tomography) and use method thereof

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0026] Such as figure 1 with 2 Shown: an in-situ loading instrument for cement-based specimens for industrial X-CT, including an upper base plate 1, a lower base plate 2, an intermediate shaft 3, a fixed end 4 and a displacement sensor 5. The two ends of the intermediate shaft 3 are respectively installed A test piece 6 is provided between the upper base plate 1 and the lower base plate 2, the upper base plate 1 and the lower base plate 2, the displacement sensor 5 is inserted through the upper base plate 1 and the lower base plate 2, and the upper base plate 1 is provided with a matching test piece 6 Apply pressure to the fixed end 4.

[0027] A method for using the cement-based in-situ loading instrument for industrial X-CT, including the following steps:

[0028] 1) Test piece installation:

[0029] Pouring test piece 6 according to the characteristics of the d...

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Abstract

The invention discloses a cement-based test piece in-situ loading instrument for industrial X-CT (X-ray computered tomography). The cement-based test piece in-situ loading instrument comprises an upper base plate, a lower base plate, a middle shaft, a fixing end and a displacement sensor, wherein the upper base plate and the lower base plate are respectively installed at two ends of the middle shaft; a test piece is arranged between the upper base plate and the lower base plate; the displacement sensor penetrates through the upper base plate and the lower base plate; and the fixing end for exerting pressure on the test piece is arranged on the upper base plate. By utilizing the cement-based test piece in-situ loading instrument, a CT scanning effect and the 360-degree rotation under the loading condition are not influenced, and a relationship between deformation and crack generation as well as the deformation and expansion is established. The invention also discloses a use method of the cement-based test piece in-situ loading instrument for the industrial X-CT.

Description

Technical field [0001] The invention belongs to the field of civil engineering material detection, and specifically relates to an in-situ loading instrument for cement-based test pieces for industrial X-CT and a use method thereof. Background technique [0002] In recent years, X-ray computered tomography (X-CT) has begun to be used in the field of civil engineering materials. As an effective in-situ structural analysis method, X-CT will also play an important role in the quantitative analysis and in-situ observation of the microstructure evolution of cement-based composites. [0003] For mature concrete, starting from the microstructure of the material, tracking and observing the entire process of crack germination and growth under load conditions, and studying the quantitative relationship between the evolution of the microstructure and the macroscopic behavior in the process of material damage and deterioration is of great significance. No detailed report has been seen yet. A ...

Claims

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Application Information

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IPC IPC(8): G01N23/04
Inventor 张萍孙伟庞超明秦鸿根万克树
Owner SOUTHEAST UNIV
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