Evaluation of internal defects in reinforced concrete by means of innovative AE tomography
by Takahiro Nishida; Tomoki Shiotani; Hisafumi Asaue
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 12, No. 1/2, 2017

Abstract: The purpose of this study is to detect the location of internal defects in reinforced concrete columns by innovative AE tomography. The results showed that elastic wave velocity in the major part of bodies of the tested columns was lower than 2500 m/sec. Also, according to concrete core samples taken from the tested columns, elastic wave velocities of the cracked or fractured zones were lower than velocities in other zones. In addition, 'concrete quality designation' (CQD) values were calculated for the concrete core sample and compared with the elastic wave velocity. As a result, the average velocity showed good correlation with CQD values for the core sample. On the basis of the results, defects in concrete can be evaluated by means of elastic velocity distribution obtained as a result of the proposed AE tomography.

Online publication date: Mon, 30-Oct-2017

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Microstructure and Materials Properties (IJMMP):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com