Adding polypropylene fibres (0.2% by volume of concrete) to concrete mixes enhances the properties of both fresh and hardened concretes. This paper presents results of an investigation of the effect of polypropylene fiber reinforcement in retarding the corrosion of reinforcing steel in concrete, as a result of improving the durability performance of the concrete embedding the steel reinforcement. Reinforced concrete slabs of different water-cement ratios of 0.45, 0.55, and 0.65, made with and without polypropylene fibers, were subjected to severe corrosion-initiating conditions and their resistance to corrosion was monitored for a period of more than 7 months. The effect of adding polypropylene fibers was also studied on some properties of the concrete that closely relate to corrosion of reinforcing steel. These include electrical resistivity, water absorption, and permeability of concrete. The results indicate polypropylene fiber reinforcement has no noticeable effect in retardiong corrosion of reinforcing steel in concrete. The results of the electrical resistivity, water absorption, and permeability tests also do not show any significant improvement due to the inclusion of polypropylene fibers.

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  • Accession Number: 00494210
  • Record Type: Publication
  • Report/Paper Numbers: Title No. 87-M12
  • Files: TRIS
  • Created Date: May 31 1990 12:00AM