The integration of non-destructive test methods in the South African Durability Index approach

In South Africa, the Durability Index (D!) approach is a performance-based method for specifying (or assessing) the durability of RC [reinforced concrete] structures. The oxygen permeability index (OPI) test is being standardised in South Africa, and has been implemented in a large scale project by the South African National Roads Agency Limited (SANRAL). However, the semi-invasive nature of the test method (due to core extraction) has been seen as undesirable by engineers and clients. The Swiss approach (after Swiss Standard SIA 26211) is another performance-based approach, which makes use of an air-permeability test method (the Torrent method) for specifying or assessing the durability of RC structures. Until recently, there has been a considerable amount of uncertainty linked to the influence of moisture content on the Torrent permeability coefficient. This study aims to incorporate the Swiss approach into the DI approach, in order to achieve a non-destructive, nationally accepted approach for comprehensive durability assessment of RC structures.

Grantor dc:publisher.institution

Department of Civil Engineering

Year dc:date.issued

2013

Author dc:creator

• Starck, Simon

Advisors dc:contributor.advisor

• Beushausen, Hans-Dieter
• Alexander, Mark Gavin

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/5000

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/5000