Publications

Pro098

REPAIR CORRODED REINFORCED CONCRETE COLUMNS USING ALKALI-ACTIVATED SLAG FERROCEMENT



Author(s): Shuai Fang, Eddie Siu-Shu Lam, and Wing-Ying Wong
Book Title: FERRO-11 – 11th International Symposium on Ferrocement and 3rd ICTRC - International Conference on Textile Reinforced Concrete
Editor: Wolfgang Brameshuber
Print-ISBN: 978-2-35158-152-0
e-ISBN: 978-2-35158-153-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 531-538
Total Pages: 8
Language: English


Abstract: A new method for repairing corroded reinforced concrete columns using alkali-activated slag (“AAS”) ferrocement is proposed. Ten full-scale column specimens were prepared and seven of them suffered artificial accelerated corrosion at a mass loss of main reinforcement of 8.9 %. Three corroded specimens were subsequently strengthened. This is achieved by replacing concrete cover by AAS ferrocement jackets with two layers of stainless steel wire meshes (“SSWM”). The specimens were tested under axial, small and large eccentric compression, respectively. Experimental results have shown the corroded columns suffer loading capacity losses from 21 to 30 % as compared with the control specimens. AAS ferrocement jacket can enhance the loading capacity of corroded columns by 18 to 38 %. Confinement effect of AAS ferrocement is observed on specimens under axial and small eccentric compression.


Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00