A study on durability of reinforced concrete using steel fibers under the chloride attack condition

Author(s): J. Matsumoto, K. Horiguchi, T. Maruya
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 772 - 782
Total Pages: 10
Language: English

It is effective for steel fibers to reduce corrosion amount of reinforcing bars caused by chloride attack and carbonation. However, mechanisms of anti-corrosion of reinforcing bars using steel fibers in concrete have yet be explained fully. In this paper, effects of steel fibers on corrosion of reinforcing bar under the chloride attack condition were discussed. Series of accelerated deterioration tests were carried out. In the experiment, immersion of the specimens in 10% NaCl solution for 3 days and drying up them in air for 4days, of which total period was 7 days as 1 cycle, were cyclically continued. The results of these experiments show that corrosion of steel fibers occurred to the depth less than 5mm, corrosion amount of reinforcing bar in the steel fibers reinforced concrete were almost the same in the case of non-steel fibers concrete, and steel fibers do not accelerate corrosion of reinforcing bars. In this study, steel fibers reinforced concrete can be applied to durability verification of reinforced concrete in Japan.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00

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