File(s) not publicly available

A comparative study on factors affecting time to cover cracking as a service life indicator

journal contribution
posted on 03.09.2019, 00:00 by F Chen, Hassan Baji, C-Q Li
Corrosion of steel in reinforced concrete structures has been a major worldwide problem. The time to cover cracking plays a key role in assessment of serviceability of reinforced concrete structures subjected to corrosion. A large number of analytical, numerical, and empirical models have been developed to predict the time to time to cover cracking. In addition, extensive experiments have been conducted in order to verify the developed models. In this paper, an overview of the existing models is presented. A large experimental database of reported data on time to cover cracking is collated. Performance of four analytical models taken from the available literature is then examined using the established experimental database. Sensitivity analysis followed by a probabilistic study is carried out to identify the factors affecting time to cover cracking as a service life indicator by means of the selected models. The results from sensitivity analysis show that the porous zone and the properties of rust are the most influential factors for time to cover cracking. It is also shown that there is high uncertainty in predicting service life of reinforced concrete structures based on time to cover cracking. © 2017 Elsevier Ltd

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

163

Start Page

681

End Page

694

Number of Pages

14

ISSN

0950-0618

Publisher

Elsevier, Netherlands

Peer Reviewed

Yes

Open Access

No

Acceptance Date

15/12/2017

External Author Affiliations

Wuhan University of Technology, China; RMIT University

Era Eligible

Yes

Journal

Construction and Building Materials

Exports

CQUniversity

Exports