STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS

Mao Lisheng; Wu Jiaye; Huang Botai

doi:10.13204/j.gyjz201306030

Volume 43 Issue 6

Dec. 2014

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Mao Lisheng, Wu Jiaye, Huang Botai. STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 146-149. doi: 10.13204/j.gyjz201306030

Citation:

Mao Lisheng, Wu Jiaye, Huang Botai. STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 146-149. doi: 10.13204/j.gyjz201306030

Mao Lisheng, Wu Jiaye, Huang Botai. STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 146-149. doi: 10.13204/j.gyjz201306030

Citation:

Mao Lisheng, Wu Jiaye, Huang Botai. STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 146-149. doi: 10.13204/j.gyjz201306030

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STUDY ON THE IMPACT OF CONCRETE CRACK SURFACE PRESSURE ON THE DEPTH TEST RESULTS

doi: 10.13204/j.gyjz201306030

1.
1. Institute of Architectural and Engineering,Sichuan University of Science and Engineering,Zigong 643000,China;
2.
2. Sichuan Central Inspection Technology Co.Ltd,Chengdu 610000,China

Received Date: 2013-02-18
Publish Date: 2013-06-20

Abstract

Abstract

In the concrete structure, the stress may change with load and tempercture etc.For crack depth testing by NDT methods, the stress condition of crack surface must be considered, especially for deep crack.In this paper, the results by large concrete block test were got.It was compared the difference between several representative nondestructive testing methods at the different stress conditions.The results show that the tested crack depth may be underestimated seriously by phase inversion methodand propagation time method, and the surface wave method performs better when the compressive stress on the crack surface is equal to, or less than 5 MPa.
- concrete structure,
- crack depth,
- compressive stress,
- elastic wave,
- NDT,
- surface wave method