Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars

n this study, the effect of the curing method and polyvinyl alcohol (PVA) fiber inclusion on some engineering properties of fly ash-based geopolymer mortars was examined. In this context, six fly ash-based mortars were produced using sodium hydroxide and sodium silicate solution. The fracture energy...

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Main Author: Adil Gültekin
Format: Article
Language:English
Published: Yildiz Technical University 2024-12-01
Series:Journal of Sustainable Construction Materials and Technologies
Subjects:
Online Access:https://dergipark.org.tr/en/download/article-file/4469524
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author Adil Gültekin
author_facet Adil Gültekin
author_sort Adil Gültekin
collection DOAJ
description n this study, the effect of the curing method and polyvinyl alcohol (PVA) fiber inclusion on some engineering properties of fly ash-based geopolymer mortars was examined. In this context, six fly ash-based mortars were produced using sodium hydroxide and sodium silicate solution. The fracture energy values were determined with notched samples of 50×50×240mm dimensions, and a clip-on gage was used to measure the crack mouth opening displacements. The notch width and notch height were 3 mm and 10 mm, respectively. Specimens were cured in hot water (80 °C) for 18 hours. Before curing, one series of samples was sealed with three layers of polyvinyl chloride (PVC) cling film and two layers of duct tape, while the other was not. The results showed that sealing the specimens during curing increased the compressive strength, and these increases were 18% for the reference mortar and 18% and 12%for mortars produced with 6 mm and 12 mm PVA fiber, respectively. Sealed curing enhanced fracture energy and peak loads and reduced the rate of capillary water absorption. With fiber inclusion, increases of up to 1508% in fracture energy values were achieved. The results revealed that sealing samples during curing significantly affects the mechanical properties.
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institution Kabale University
issn 2458-973X
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publishDate 2024-12-01
publisher Yildiz Technical University
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series Journal of Sustainable Construction Materials and Technologies
spelling doaj-art-2a8405103bbf455ba5db8b9c8fb191b42025-01-05T06:44:27ZengYildiz Technical UniversityJournal of Sustainable Construction Materials and Technologies2458-973X2024-12-019436537310.47481/jscmt.1607851252Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortarsAdil Gültekin0https://orcid.org/0000-0002-5267-5312DUZCE UNIVERSITY, FACULTY OF ENGINEERING, DEPARTMENT OF CIVIL ENGINEERING, CIVIL ENGINEERING PR.n this study, the effect of the curing method and polyvinyl alcohol (PVA) fiber inclusion on some engineering properties of fly ash-based geopolymer mortars was examined. In this context, six fly ash-based mortars were produced using sodium hydroxide and sodium silicate solution. The fracture energy values were determined with notched samples of 50×50×240mm dimensions, and a clip-on gage was used to measure the crack mouth opening displacements. The notch width and notch height were 3 mm and 10 mm, respectively. Specimens were cured in hot water (80 °C) for 18 hours. Before curing, one series of samples was sealed with three layers of polyvinyl chloride (PVC) cling film and two layers of duct tape, while the other was not. The results showed that sealing the specimens during curing increased the compressive strength, and these increases were 18% for the reference mortar and 18% and 12%for mortars produced with 6 mm and 12 mm PVA fiber, respectively. Sealed curing enhanced fracture energy and peak loads and reduced the rate of capillary water absorption. With fiber inclusion, increases of up to 1508% in fracture energy values were achieved. The results revealed that sealing samples during curing significantly affects the mechanical properties.https://dergipark.org.tr/en/download/article-file/4469524fracture energygeopolymerpva fibersealed curingwatercuring
spellingShingle Adil Gültekin
Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
Journal of Sustainable Construction Materials and Technologies
fracture energy
geopolymer
pva fiber
sealed curing
watercuring
title Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
title_full Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
title_fullStr Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
title_full_unstemmed Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
title_short Effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash-based geopolymer mortars
title_sort effect of sealed water curing and fiber length on compressive strength and fracture energy of fly ash based geopolymer mortars
topic fracture energy
geopolymer
pva fiber
sealed curing
watercuring
url https://dergipark.org.tr/en/download/article-file/4469524
work_keys_str_mv AT adilgultekin effectofsealedwatercuringandfiberlengthoncompressivestrengthandfractureenergyofflyashbasedgeopolymermortars