APPLICATIONS OF FERROCEMENT IN STRENGTHENING OF HEAT DAMAGED REINFORCED CONCRETE CIRCULAR COLUMNS

Author(s): Danie Roy A.B., Umesh Kumar Sharma and Pradeep Bhargava
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: 523-530
Total Pages: 8
Language: English

Abstract: The main purpose of the present investigation is to examine the capability of commonly used Ferrocement techniques in restoring the structural capacity of heat damaged rein-forced concrete columns. A series of 33 reinforced concrete circular short column of size 150 x 450 mm were cast using normal strength concrete. After 150 days of ageing, concrete specimens were exposed to elevated temperatures ranging from room temperature to 900 ºC in an electric furnace. The overall response of strengthened specimens was investigated vis-à-vis unstrengthened specimens in terms of axial compression, axial displacement and axial stress strain behaviour. It was observed that the columns exposed to different temperatures experienced a reduction in ultimate load carrying capacity. The study shows that Ferrocement jacketing techniques though indicated only nominal improvement in the strength capacities, however they were quite capable in restoring the secant stiffness capacity of heat damaged RC columns.

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