Repairing preloaded square columns by ferrocement jackets made of non-structural WWMs

Author(s): S.M. Mourad, M.J. Shannag
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 407- 408
Total Pages: 2
Language: English

In some situations, Welded Wire Meshes (WWMs) that conform to ACI standards may not be available in the market, consequently, that can result in using other WWMs that are intended for non-structural purposes with less yield strength as compared to that specified by ACI standards. This research investigates the performance of ferrocement laminates made of high strength mortar and non-structural WWMs in strengthening and repairing square reinforced concrete column specimens. The ferrocement laminates were applied on unloaded and preloaded columns with 60%, 80% and 100% of its axial capacity. The overall response of the tested specimens under axial compression was investigated in terms of load carrying capacity, axial stress and strain, lateral displacement, and ductility. Test results indicated that ferrocement jackets made of 2 layers of WWMs have a promising performance. The test results also indicated that repairing similar reinforced concrete columns, after preloading them to failure, with the same ferrocement jacket almost restored their original load capacity and stiffness.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00