Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar

Geopolymers have attracted the attention of many researchers in recent years as a non-cement concrete. Instead of cement, various material such as metakaoline, zeolite, rice husk ash, etc are used in Geopolymers. In order to complete the geopolymerization process, a binder is used along with the sel...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hadi Nazarpour, Milad Jamali
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	geopolymer mortar slag elasticity module mixing temperature setting time compressive strength Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/a7f352c50d8f4ebfb6dd2d4adf1df07d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a7f352c50d8f4ebfb6dd2d4adf1df07d
record_format	dspace
spelling	oai:doaj.org-article:a7f352c50d8f4ebfb6dd2d4adf1df07d2021-11-08T15:53:49ZExperimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar2476-39772538-261610.22065/jsce.2018.128666.1541https://doaj.org/article/a7f352c50d8f4ebfb6dd2d4adf1df07d2020-04-01T00:00:00Zhttps://www.jsce.ir/article_79385_04c81a2baa838a039ae0fb3ec3418b1d.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Geopolymers have attracted the attention of many researchers in recent years as a non-cement concrete. Instead of cement, various material such as metakaoline, zeolite, rice husk ash, etc are used in Geopolymers. In order to complete the geopolymerization process, a binder is used along with the selected material from the chemical solutions. Preparation of chemical solutions usually liberates a lot of heat. In this research, steel slag was used as a substitute for cement. In addition, solutions of sodium silicate and potassium hydroxide used as chemical solutions. This research evaluates the effects of chemicals and the mixing temperature on properties of geopolymer mortar. For this purpose, 20 different mixing ratios were made. Setting time, mixture temperature, elasticity module and compressive strength of sample were measured. The results showed that the higher the amount of chemicals solution creates mores mixing temperature and compressive strength and less setting time. Between solutions of sodium silicate and potassium hydroxide, the effects of increasing of the sodium silicate solution are greater in strength growth, temperature growth and setting time reduction. The electron microscopic images of the samples with the highest and the least strength showed that the higher amount of chemicals and the temperature of the construction caused the formation of more hardened geopolymer gel and the width of the cracks observed in the mix design with less chemical solutions It is nearly 3 times more. In addition, X-ray radiation testing for the samples with the highest and lowest strenght showed that the intensity of reflection in the sample with lower strenght was higher; indicating that the hardened geopolymer gel was less due to the reduction of chemical concentration.Hadi NazarpourMilad JamaliIranian Society of Structrual Engineering (ISSE)articlegeopolymer mortarslagelasticity modulemixing temperaturesetting timecompressive strengthBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 1 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	geopolymer mortar slag elasticity module mixing temperature setting time compressive strength Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	geopolymer mortar slag elasticity module mixing temperature setting time compressive strength Bridge engineering TG1-470 Building construction TH1-9745 Hadi Nazarpour Milad Jamali Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
description	Geopolymers have attracted the attention of many researchers in recent years as a non-cement concrete. Instead of cement, various material such as metakaoline, zeolite, rice husk ash, etc are used in Geopolymers. In order to complete the geopolymerization process, a binder is used along with the selected material from the chemical solutions. Preparation of chemical solutions usually liberates a lot of heat. In this research, steel slag was used as a substitute for cement. In addition, solutions of sodium silicate and potassium hydroxide used as chemical solutions. This research evaluates the effects of chemicals and the mixing temperature on properties of geopolymer mortar. For this purpose, 20 different mixing ratios were made. Setting time, mixture temperature, elasticity module and compressive strength of sample were measured. The results showed that the higher the amount of chemicals solution creates mores mixing temperature and compressive strength and less setting time. Between solutions of sodium silicate and potassium hydroxide, the effects of increasing of the sodium silicate solution are greater in strength growth, temperature growth and setting time reduction. The electron microscopic images of the samples with the highest and the least strength showed that the higher amount of chemicals and the temperature of the construction caused the formation of more hardened geopolymer gel and the width of the cracks observed in the mix design with less chemical solutions It is nearly 3 times more. In addition, X-ray radiation testing for the samples with the highest and lowest strenght showed that the intensity of reflection in the sample with lower strenght was higher; indicating that the hardened geopolymer gel was less due to the reduction of chemical concentration.
format	article
author	Hadi Nazarpour Milad Jamali
author_facet	Hadi Nazarpour Milad Jamali
author_sort	Hadi Nazarpour
title	Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
title_short	Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
title_full	Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
title_fullStr	Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
title_full_unstemmed	Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
title_sort	experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/a7f352c50d8f4ebfb6dd2d4adf1df07d
work_keys_str_mv	AT hadinazarpour experimentalstudyofsodiumsilicateandpotassiumhydroxidesolutionsandmixingtemperatureonsettingtimeandcompressivestrengthofthegeopolymermortar AT miladjamali experimentalstudyofsodiumsilicateandpotassiumhydroxidesolutionsandmixingtemperatureonsettingtimeandcompressivestrengthofthegeopolymermortar
_version_	1718441595892662272

Experimental study of sodium silicate and potassium hydroxide solutions and mixing temperature on setting time and compressive strength of the geopolymer mortar

Ejemplares similares