Use of Polymer Fibers Recovered from Waste Timing Belts in High Performance Concrete

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Esrafili, Amin | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 46920 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Khalu, Alireza
Abstract:
The present paper discusses the possibility of adding recycled polymer fibres to high performance concrete (HPC). Fibres used in this study were recovered from discarded car timing belts. To investigate different characteristics of the concrete specimens several destructive and non-destructive tests, such as compressive strength, modulus of rupture, flexural toughness, ultrasonic velocity and electrical resistance tests were carried out. In addition, slump flow tests were conducted on the fresh concrete. Experimental results from the study showed that the use of low percentages (up to 0.5%) of waste fibres improved the modulus of rupture and flexural toughness. Based on ultrasonic and electrical resistance test results, an increase in fibre percentage also increased the pore volume and electrical resistance of the fibre reinforced concretes with respect to a control mixture
Keywords:
Compression Strength ; Rupture Modulus ; Recycled Fibre ; High Performance Concrete ; Car Timing Belt ; Flexural Toughness