{"title":"Repair of Concrete Structures with SCC","authors":"F. Kharchi, M. Benhadji, O. Bouksani","volume":58,"journal":"International Journal of Civil and Environmental Engineering","pagesStart":404,"pagesEnd":408,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/2957","abstract":"
The objective of this work is to study the influence of the properties of the substrate on the retrofit (thin repair) of damaged concrete elements, with the SCC. Fluidity, principal characteristic of the SCC, would enable it to cover and adhere to the concrete to be repaired. Two aspects of repair are considered, the bond (Adhesion) and the tensile strength and the cracking. The investigation is experimental; It was conducted over test specimens made up of ordinary concrete prepared and hardened in advance (the material to be repaired) over which a self compacting concrete layer is cast. Three alternatives of SC concrete and one ordinary concrete (comparison) were tested. It appears that the self-compacting concrete constitutes a good material for repairing. It follows perfectly the surfaces- forms to be repaired and allows a perfect bond. Fracture tests made on specimens of self-compacting concrete show a brittle behaviour. However when a small percentage of fibres is added, the resistance to cracking is very much improve.<\/p>\r\n","references":"[1] Benhadji M \"Etude du comportement d-une poutre r\u00e9par\u00e9e par\r\nreprofilage- application du b\u00e9ton autopla\u251c\u00baant\". Magister USTHB g\u00e9nie\r\ncivil, (2008).\r\n[2] Kharchi F. Abib Z. Gaher H., \"B\u00e9ton autopla\u251c\u00baant-optimisation de la\r\ncomposition\". 1er congr\u00e8s international sur la technologie et la\r\ndurabilit\u00e9 du B\u00e9ton-USTHB, 2004\r\n[3] Kharchi F. Abib Z. Gaher H , \"Self compacting concrete with Algerian\r\ncomponent\".First international conference of civil engineering science\r\nAssiut EGYPTE, 2003\r\n[4] Bonaldo E, Louren\u251c\u00bao P B, Barros .J A O \"Bond characterisation\r\nbetween concrete substrate and repairing\", SFRC using pull-off testing.\r\nInternational journal of adhesion and adhesives\", 2005, pp. 463-474\r\n[5] Courard L and Bissonette B), \"Essai d\u00e9riv\u00e9 de l-essai d-adh\u00e9rence pour\r\nla caract\u00e9risation de la coh\u00e9sion superficielle\"., Materials and Structures\r\nvol.37, 2004, pp. 342-350.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 58, 2011"}