Repair of Pre-Cracked RC Beams Using Several Cementitious Materials
Samir M. Shihada, Yasser M. Oida
Journal of Scientific Research and Reports · pp. 655–664 · Published 27 Aug 2013
10.9734/JSRR/2013/5238Abstract
This study investigates the use of four cementitious repair materials in terms of restoring the flexural capacities of pre-cracked reinforced concrete shallow beams. Fifteen reinforced concrete beams are cast, pre-cracked, repaired and then tested under four point-loading. The repair materials used include Ultra High Performance Concrete (UHPC), Ultra High Performance Fiber Reinforced Concrete (UHPFRC), Normal Strength Concrete (NSC) and Cement-based Repair Material (CRM). Added to this, three beams are cast, tested and considered as control beams. The outcome of this study shows that the four repair materials can achieve flexural capacities ranging from 97 % to 111% of the control beam capacities. In addition, mid-span deflections and crack patterns are also compared.
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