Deakin University
Browse

File(s) under permanent embargo

Service Life of Concrete during Chloride Ingress

Version 2 2024-06-05, 02:59
Version 1 2023-04-04, 23:33
conference contribution
posted on 2024-06-05, 02:59 authored by Laurence P Aldridge, Frank CollinsFrank Collins, Will GatesWill Gates, Estela Garcez, Jahidl Islam, L Huang, Martin Ong, Fernado Kapila
The service life of reinforced concrete infrastructure in a marine environment can be predicted from semi-empirical equations. This work describes what is needed to reliably predict service life of reinforced concrete that is exposed to chlorides and more importantly what “new knowledge” is needed for predicting the service life of concrete cover in the real world. There include; the effect of hydration suction, assumptions about the critical chloride concentration that initiate steel corrosion, flaws in the Fick’s law approach, modifications to paste structure by sea water, and significant differences between gel pores in concretes made with and without supplementary cementitious materials. A research program has been initiated to determine this knowledge including determinations of (i) pore closure (ii) water diffusion, & (iii) interaction of paste with sea water, all being monitored as a function of cure time.

History

Pagination

1-9

Location

Gold Coast, QLD, Australia

Start date

2013-10-16

End date

2013-10-18

ISBN-13

9781877040733

Language

eng

Publication classification

E Conference publication, E1.1 Full written paper - refereed

Editor/Contributor(s)

Dao V, Dux P

Title of proceedings

Concrete 2013 : Understanding Concrete : Proceedings of the Concrete Institute of Australia 2013 conference

Event

Concrete Institute of Australia. Conference (Gold Coast, Qld.)

Publisher

Concrete Institute of Australia