F. Kharchi and M. Benhadji and O. Bouksani
Repair of Concrete Structures with SCC
404 - 407
2011
5
10
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/2957
https://publications.waset.org/vol/58
World Academy of Science, Engineering and Technology
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 selfcompacting 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 selfcompacting concrete show a brittle behaviour. However when a small percentage of fibres is added, the resistance to cracking is very much improve.
Open Science Index 58, 2011