Reinforcement corrosion of circular concrete columns under sustained load

نویسندگان

چکیده

This paper presents the results of an experimental study axial capacity circular spirally-reinforced concrete columns that were subjected to accelerated corrosion while sustaining a constant compressive service load. Two sets five each designed with different spiral pitch investigate effect confinement on propagation. Columns non-confining reinforcement had only their longitudinal reinforcing steel corroded, whereas in other set specimens, was corroded and isolated from vertical steel. The cracking initiation, pattern, widening cover monitored for period 4-10 months, relations obtained between crack propagation elastic shortening column mass loss established. After period, eight tested failure under either concentric or eccentric load; deformation, pattern type recorded. specimens characterized by sudden crushing buckling, reduction load 30-40%. failed ductile manner progressive spalling cover, maintaining spite reinforcement.

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ژورنال

عنوان ژورنال: MATEC web of conferences

سال: 2022

ISSN: ['2261-236X', '2274-7214']

DOI: https://doi.org/10.1051/matecconf/202236402021