Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams

Waste fishing nets were utilized as recycled nylon (RN) short fiber to improve the mechanical properties of cement mortar. RN and manufactured polyethylene (PE) fibers were added to polymer cement mortar (PCM) as a reinforcement, and fiber-reinforced PCM was sprayed on the section of reinforced conc...

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Main Authors: Teeranai Srimahachota, Hiroshi Yokota, Yoshikazu Akira
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/19/4276
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author Teeranai Srimahachota
Hiroshi Yokota
Yoshikazu Akira
author_facet Teeranai Srimahachota
Hiroshi Yokota
Yoshikazu Akira
author_sort Teeranai Srimahachota
collection DOAJ
description Waste fishing nets were utilized as recycled nylon (RN) short fiber to improve the mechanical properties of cement mortar. RN and manufactured polyethylene (PE) fibers were added to polymer cement mortar (PCM) as a reinforcement, and fiber-reinforced PCM was sprayed on the section of reinforced concrete (RC) beams. Normal RC beams and the upgraded RC beams were placed in the tidal zone for 14 months to induce rebar corrosion. Consequently, a repair operation took place by the removal of the concrete cover then spraying fiber-reinforced PCM. The tested RC beams were subjected to four-point flexural tests to study their load-carrying capacity. It was found that the fibers helped transfer stresses through cracks and distribute stresses by transforming a single wide crack into many small cracks. Overall, the experimental results showed that recycled nylon fibers from waste fishing nets have great potential to be used as a strengthening fiber in cementitious material.
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spelling doaj.art-439f03be587c4effa1dfe838a44977082023-11-20T15:04:37ZengMDPI AGMaterials1996-19442020-09-011319427610.3390/ma13194276Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC BeamsTeeranai Srimahachota0Hiroshi Yokota1Yoshikazu Akira2Graduate School of Engineering, Hokkaido University, Sapporo 001-0014, JapanFaculty of Engineering, Hokkaido University, Sapporo 001-0014, JapanFaculty of Engineering, Kagoshima University, Kagoshima 890-0065, JapanWaste fishing nets were utilized as recycled nylon (RN) short fiber to improve the mechanical properties of cement mortar. RN and manufactured polyethylene (PE) fibers were added to polymer cement mortar (PCM) as a reinforcement, and fiber-reinforced PCM was sprayed on the section of reinforced concrete (RC) beams. Normal RC beams and the upgraded RC beams were placed in the tidal zone for 14 months to induce rebar corrosion. Consequently, a repair operation took place by the removal of the concrete cover then spraying fiber-reinforced PCM. The tested RC beams were subjected to four-point flexural tests to study their load-carrying capacity. It was found that the fibers helped transfer stresses through cracks and distribute stresses by transforming a single wide crack into many small cracks. Overall, the experimental results showed that recycled nylon fibers from waste fishing nets have great potential to be used as a strengthening fiber in cementitious material.https://www.mdpi.com/1996-1944/13/19/4276fiber reinforcing mortarpolymer cement mortarrecycled fiberwaste fishing nets
spellingShingle Teeranai Srimahachota
Hiroshi Yokota
Yoshikazu Akira
Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
Materials
fiber reinforcing mortar
polymer cement mortar
recycled fiber
waste fishing nets
title Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
title_full Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
title_fullStr Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
title_full_unstemmed Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
title_short Recycled Nylon Fiber from Waste Fishing Nets as Reinforcement in Polymer Cement Mortar for the Repair of Corroded RC Beams
title_sort recycled nylon fiber from waste fishing nets as reinforcement in polymer cement mortar for the repair of corroded rc beams
topic fiber reinforcing mortar
polymer cement mortar
recycled fiber
waste fishing nets
url https://www.mdpi.com/1996-1944/13/19/4276
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AT yoshikazuakira recyclednylonfiberfromwastefishingnetsasreinforcementinpolymercementmortarfortherepairofcorrodedrcbeams