| Issue |
MATEC Web Conf.
Volume 289, 2019
Concrete Solutions 2019 – 7th International Conference on Concrete Repair
|
|
|---|---|---|
| Article Number | 10001 | |
| Number of page(s) | 4 | |
| Section | Case Studies | |
| DOI | https://doi.org/10.1051/matecconf/201928910001 | |
| Published online | 28 August 2019 | |
Field investigation of slab deterioration due to carbonation in a concrete building
Department of Civil Engineering Science, University of Johannesburg, Auckland Park 2006, Johannesburg, South Africa
* Corresponding author: arayaeleni@yahoo.com
This paper presents an investigation on a deteriorated slab of a two-story building located in Johannesburg, South Africa. The structure has been in use as a residential building for more than 60 years. The top slab of the first floor was delaminated and reinforcement bars were severely corroded. Condition assessment of the building was done using the Schmidt hammer test, cover-meter survey and half-cell potential measurements. In addition to the non-destructive tests done, X-ray diffraction and scanning electron microscopy were also conducted on the deteriorated concrete.
Key words: Carbonation / Cover / Corrosion / Non-destructive tests / Reinforced concrete / Spalling / Site inspection.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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