Universiti Teknologi Malaysia Institutional Repository

Early detection of corrosion activity in reinforced concrete slab by AE technique

Ismail , Mohamed A. and Soleymani, Hamid and Ohtsu, Masayasu (2006) Early detection of corrosion activity in reinforced concrete slab by AE technique. In: 6th Asia-Pacific Structural Engineering and Construction Conference, 5-6 September 2006, Kuala Lumpur, Malaysia.

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Abstract

Chloride induced corrosion of steel reinforcement in concrete is the main cause of damage to concrete structures in marine, or structures exposed to de-icing salt environments. The need for early detection of corrosion in reinforced concrete structures is widely acknowledged in corrosion health monitoring for strategic civil engineering projects. This paper summarizes results from a laboratory experiment, using Acoustic Emission (AE) technique, regarding early detection of corrosion in reinforced concrete slabs that are exposed to chloride. The Results showed that while AE was able to determine the initiation of corrosion in reinforced concrete slab, Half-cell potential (HCP) was not able to detect it at the early stage of corrosion.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Corrosion; acoustic emission; half-cell potential; non-destructive techniques.
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:282
Deposited By: Pn. Norazila Safri
Deposited On:15 Feb 2007 07:36
Last Modified:01 Jun 2010 02:42

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