Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite

Production of Portland Cement (PC) is a highly energy-intensive process and causes significant environmental damages. Thus scientists are always after ways to reduce these negative effects and find a more efficient process of producing cement. Geopolymers are amongst materials that are used as a sub...

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Autores principales:	Maryam Mohammadi Fatideh, Malek Mohammad Ranjbar
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	alumino-silicate curing geopolymer sodium hydroxide sodium silicate Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/7000b7e0e66a4c58b7c7192e4b0a50ae
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spelling	oai:doaj.org-article:7000b7e0e66a4c58b7c7192e4b0a50ae2021-11-08T15:54:32ZEvaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite2476-39772538-261610.22065/jsce.2019.161256.1740https://doaj.org/article/7000b7e0e66a4c58b7c7192e4b0a50ae2021-04-01T00:00:00Zhttps://www.jsce.ir/article_87089_2d66a07db45dec8d129569cbf89ab014.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Production of Portland Cement (PC) is a highly energy-intensive process and causes significant environmental damages. Thus scientists are always after ways to reduce these negative effects and find a more efficient process of producing cement. Geopolymers are amongst materials that are used as a substitute for cement in concrete. Geopolymer consists of one or more source materials containing alumino-silicate with an alkali activator.This study is done for the purpose of evaluating the setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite. Hence the setting time of geopolymer paste based on blast furnace slag and zeolite activated with sodium hydroxide solution of concentrations 6, 8, 10 and 12 molar and sodium silicate modulus of 2 was measured. In the next step, compressive strength of geopolymer paste samples under curing were gauged in the lab ambient temperature and also in the 60°C temperature.Results showed that with an increase in sodium hydroxide concentration, the setting time increased. Also compressive strength of geopolymer paste containing slag and zeolite rose with the raise of sodium hydroxide concentration. Geopolymer paste samples based on slag, showed increase in compressive strength in sodium hydroxide concentrations 6, 8 and 10 molar. Though with an increase in concentration of sodium hydroxide to 12 molar, compressive strength decreased. Also with an increase in the percentage of zeolite substitute in the source material, setting time increased but compressive strength decreased. Samples cured in 60°C temperature showed better strength, too.Maryam Mohammadi FatidehMalek Mohammad RanjbarIranian Society of Structrual Engineering (ISSE)articlealumino-silicatecuringgeopolymersodium hydroxidesodium silicateBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 2, Pp 177-187 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	alumino-silicate curing geopolymer sodium hydroxide sodium silicate Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	alumino-silicate curing geopolymer sodium hydroxide sodium silicate Bridge engineering TG1-470 Building construction TH1-9745 Maryam Mohammadi Fatideh Malek Mohammad Ranjbar Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
description	Production of Portland Cement (PC) is a highly energy-intensive process and causes significant environmental damages. Thus scientists are always after ways to reduce these negative effects and find a more efficient process of producing cement. Geopolymers are amongst materials that are used as a substitute for cement in concrete. Geopolymer consists of one or more source materials containing alumino-silicate with an alkali activator.This study is done for the purpose of evaluating the setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite. Hence the setting time of geopolymer paste based on blast furnace slag and zeolite activated with sodium hydroxide solution of concentrations 6, 8, 10 and 12 molar and sodium silicate modulus of 2 was measured. In the next step, compressive strength of geopolymer paste samples under curing were gauged in the lab ambient temperature and also in the 60°C temperature.Results showed that with an increase in sodium hydroxide concentration, the setting time increased. Also compressive strength of geopolymer paste containing slag and zeolite rose with the raise of sodium hydroxide concentration. Geopolymer paste samples based on slag, showed increase in compressive strength in sodium hydroxide concentrations 6, 8 and 10 molar. Though with an increase in concentration of sodium hydroxide to 12 molar, compressive strength decreased. Also with an increase in the percentage of zeolite substitute in the source material, setting time increased but compressive strength decreased. Samples cured in 60°C temperature showed better strength, too.
format	article
author	Maryam Mohammadi Fatideh Malek Mohammad Ranjbar
author_facet	Maryam Mohammadi Fatideh Malek Mohammad Ranjbar
author_sort	Maryam Mohammadi Fatideh
title	Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
title_short	Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
title_full	Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
title_fullStr	Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
title_full_unstemmed	Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
title_sort	evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/7000b7e0e66a4c58b7c7192e4b0a50ae
work_keys_str_mv	AT maryammohammadifatideh evaluationofsettingtimeandcompressivestrengthofgeopolymerpastecontainingblastfurnaceslagandzeolite AT malekmohammadranjbar evaluationofsettingtimeandcompressivestrengthofgeopolymerpastecontainingblastfurnaceslagandzeolite
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Evaluation of setting time and compressive strength of geopolymer paste containing blast furnace slag and zeolite

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