Concrete Research and Technology
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
Steel Corrosion Induced by Chloride or Carbonation at Bending Crack in High Performance Fiber Reinforced Cementitious Composites
Youichi HiraishiTakamitsu HonmaMuneyuki HakoyamaShinichi Miyazato
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2005 Volume 16 Issue 3 Pages 31-38

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Abstract

High Performance Fiber Reinforced Cementitious Composites (HPFRCC) have some micro cracks under the bending load. In this study, the durability for the steel corrosion in HPFRCC is clarified. Therefore, the corrosion cell formation pattern and the rate are compared between HPFRCC and plain mortar. Especially, the multiple cracks at HPFRCC are focused. As a result; 1) The corrosion cell formation pattern of HPFRCC is microcell, while that of plain mortar is macrocell. 2) The corrosion rate of HPFRCC is lower than that of plain mortar. 3) From the above results, it can be confirmed that the durability for chloride or carbonation corrosion of HPFRCC is higher than that of plain mortar.

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© Japan Concrete Institute
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