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Compressive Stress-Strain Behavior of Composite Ordinary and Reactive Powder Concrete

Author(s): Bassam A. Tayeh | B.H. Abu Bakar | M.A. Megat Johari | S.M. Tayeh

Journal: Iranica Journal of Energy and Environment (IJEE)
ISSN 2079-2115

Volume: 4;
Issue: 3;
Start page: 294;
Date: 2013;
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Keywords: Reactive powder concrete | Bond strength | Repair material | Substrate | Compressive stress-strain

The deterioration of reinforced concrete structures is a major social problem. To minimize this problemand ensure effective structural management, the number and extent of repair interventions must be kept at thelowest probable level. Good bond is one of the main requirements for successful repair. The main aim of thisstudy was to investigate the compressive stress-strain behaviour of the composite specimens consist ofordinary concrete (OC) substrate as old concrete and reactive powder concrete (RPC) as a retrofitting material,by using different types of OC substrate surface preparation methods. The results showed that the compositeOC/RPC specimens were able to behave closely to individual OC, in the case of using OC substrate with surfaceprepared by sand blasted.
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