The effect of organic and inorganic fibres on the mechanical and thermal properties of aluminate activated geopolymers |
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| Affiliation: | 1. Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna, Italy;2. Geopolymer Research Group, Curtin University, PO Box U1987, Perth, WA 6845, Australia;1. Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy;2. Centre for Materials Research, Curtin University, Perth, WA 6845, Australia;1. Department of Architectural Engineering, Wonkwang University, 460 Iksan daero, Iksan 570-749, Republic of Korea;2. School of Architecture, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea;1. Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;2. Centre for Innovative Construction Technology, Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;3. School of Mechanical and Building Sciences, VIT University, India;1. Department of Civil Engineering, Engineering Faculty, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark;3. Department of Mechanical Engineering and Center of advanced Material, University of Malaya, 50603 Kuala Lumpur, Malaysia;1. Center for Sustainable Infrastructure, School of Engineering, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, Victoria 3122, Australia;2. Department of Civil Engineering, Curtin University, Perth, Australia |
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| Abstract: | The addition of fibres to a brittle matrix is a well-known method to improve the flexural strength. However, the success of the reinforcements is dependent on the interaction between the fibre and the matrix. This paper presents the mechanical and microstructural properties of PVA and basalt fibre reinforced geopolymers. Moreover low density and thermal resistant materials used as insulating panels are known be susceptible to damage due to their poor flexural strength. As such the thermal and fire resistance properties of foamed geopolymers containing fibre reinforcement were also investigated.The results highlight that the presence of PVA fibres greatly increased the flexural strength and the toughness of the geopolymer composite, while the presence of basalt fibres improved the flexural behaviour of the composite after high temperature exposure. |
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| Keywords: | A Fibres E Casting D Mechanical testing B Thermal properties |
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