Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)

This paper presents the effects of various nanosilica (NS) contents on the mechanical properties of polyvinyl alcohol (PVA) fiber-reinforced geopolymer composites (PVA-FRGC). Microstructure analysis with X-ray diffraction (XRD) and scanning electron microscopy (SEM) was used to characterize the geop...

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Autores principales: Assaedi, Hasan, Alomayri, Thamer, Siddika, Ayesha, Shaikh, Faiz, Alamri, Hatem, Subaer, Subaer, Low, It-Meng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862656/
https://www.ncbi.nlm.nih.gov/pubmed/31690006
http://dx.doi.org/10.3390/ma12213624
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author Assaedi, Hasan
Alomayri, Thamer
Siddika, Ayesha
Shaikh, Faiz
Alamri, Hatem
Subaer, Subaer
Low, It-Meng
author_facet Assaedi, Hasan
Alomayri, Thamer
Siddika, Ayesha
Shaikh, Faiz
Alamri, Hatem
Subaer, Subaer
Low, It-Meng
author_sort Assaedi, Hasan
collection PubMed
description This paper presents the effects of various nanosilica (NS) contents on the mechanical properties of polyvinyl alcohol (PVA) fiber-reinforced geopolymer composites (PVA-FRGC). Microstructure analysis with X-ray diffraction (XRD) and scanning electron microscopy (SEM) was used to characterize the geopolymer composites. The results showed that the mechanical properties in terms of compressive strength, impact strength, and flexural behavior were improved due to the addition of NS to the PVA-FRGC. The optimum NS content was 1.0 to 2.0 wt%, which exhibited highest improvement in the above mechanical properties. Microstructure analysis showed that the addition of NS up to an optimum level densified the microstructure of the matrix as well as the PVA fiber–geopolymer matrix interface.
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spelling pubmed-68626562019-12-05 Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC) Assaedi, Hasan Alomayri, Thamer Siddika, Ayesha Shaikh, Faiz Alamri, Hatem Subaer, Subaer Low, It-Meng Materials (Basel) Article This paper presents the effects of various nanosilica (NS) contents on the mechanical properties of polyvinyl alcohol (PVA) fiber-reinforced geopolymer composites (PVA-FRGC). Microstructure analysis with X-ray diffraction (XRD) and scanning electron microscopy (SEM) was used to characterize the geopolymer composites. The results showed that the mechanical properties in terms of compressive strength, impact strength, and flexural behavior were improved due to the addition of NS to the PVA-FRGC. The optimum NS content was 1.0 to 2.0 wt%, which exhibited highest improvement in the above mechanical properties. Microstructure analysis showed that the addition of NS up to an optimum level densified the microstructure of the matrix as well as the PVA fiber–geopolymer matrix interface. MDPI 2019-11-04 /pmc/articles/PMC6862656/ /pubmed/31690006 http://dx.doi.org/10.3390/ma12213624 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Assaedi, Hasan
Alomayri, Thamer
Siddika, Ayesha
Shaikh, Faiz
Alamri, Hatem
Subaer, Subaer
Low, It-Meng
Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title_full Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title_fullStr Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title_full_unstemmed Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title_short Effect of Nanosilica on Mechanical Properties and Microstructure of PVA Fiber-Reinforced Geopolymer Composite (PVA-FRGC)
title_sort effect of nanosilica on mechanical properties and microstructure of pva fiber-reinforced geopolymer composite (pva-frgc)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862656/
https://www.ncbi.nlm.nih.gov/pubmed/31690006
http://dx.doi.org/10.3390/ma12213624
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