Development of recycled PET fiber and its application as concrete-reinforcing fiber |
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| Affiliation: | 1. Sango Co. Ltd., 605 Kishine, Kouhoku-ku, Yokohama 222-0034, Japan;2. Department of Geosystem Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;1. Department of Civil Engineering and Architecture, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;2. School of Engineering and Technology, Kaziranga University, Jorhat 785006, Assam, India;1. Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Selangor, Malaysia;2. Dams and Water Resources Engineering Department, University of Anbar, Anbar, Iraq;1. Jamilus Research Center (JRC), Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia;2. Micropollutant Research Centre (MPRC), Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia |
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| Abstract: | We describe a method that can be used to produce concrete-reinforcing PET fiber from used PET bottles. Using this method, the concrete and PET fibers are easily mixed at a fiber contents as high as 3%. The primary characteristic of the PET fiber is that it is easy to handle. The issue of concern in the development of PET fiber is its alkali resistance; however, we encountered no problems when using the fiber in normal concrete. The wetting tension of PET was found to be lower than that of PVA but higher than that of PP. No toxic gas was generated during a combustion test of the PET fiber. We describe two example applications: a gateway support at Hishikari Mine, Japan, and the pavement of bush roads. |
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