Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

The search for alternative alumosilicates source for production of alkali activated materials (AAM) is intensively researched. Wide spread of natural materials such as clays and waste materials are one of potential alternatives. In this research AAM was made from local waste brick made of red clay a...

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Autores principales:	Bumanis Girts, Vaiciukyniene Danute
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2021
Materias:	compressive strength geopolymers industrial by-product precursor technogenic silica gel Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/b305c3a4a71842278c8cd6ea992c9f47
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spelling	oai:doaj.org-article:b305c3a4a71842278c8cd6ea992c9f472021-12-05T14:11:11ZMechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor2255-883710.2478/rtuect-2021-0070https://doaj.org/article/b305c3a4a71842278c8cd6ea992c9f472021-01-01T00:00:00Zhttps://doi.org/10.2478/rtuect-2021-0070https://doaj.org/toc/2255-8837The search for alternative alumosilicates source for production of alkali activated materials (AAM) is intensively researched. Wide spread of natural materials such as clays and waste materials are one of potential alternatives. In this research AAM was made from local waste brick made of red clay and calcined low-carbonate illite clay precursor and its properties evaluated. Waste silica gel containing amorphous silica from fertilizer production plant was proposed as additional raw material. 6 M and 7 M NaOH alkali activation solutions were used to obtain AAM. Raw materials were characterized by X-ray diffraction, laser particle size analyser, DTA/TG. Raw illite clay was calcined at a temperature of 700 to 800 °C. Waste brick was ground similar as raw clay and powder was obtained. Replacement of red clay with silica gel from 2–50 wt.% in mixture composition was evaluated. Results indicate that the most effective activator was 6 M NaOH solution and AAM with strength up to 13 MPa was obtained. Ground brick had the highest strength results and compressive strength of AAM reached 25 MPa. Silica gel in small quantities had little effect of AAM strength while significant strength reduction was observed with the increase silica gel content. The efflorescence was observed for samples with silica gel.Bumanis GirtsVaiciukyniene DanuteSciendoarticlecompressive strengthgeopolymersindustrial by-productprecursortechnogenic silica gelRenewable energy sourcesTJ807-830ENEnvironmental and Climate Technologies, Vol 25, Iss 1, Pp 931-943 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	compressive strength geopolymers industrial by-product precursor technogenic silica gel Renewable energy sources TJ807-830
spellingShingle	compressive strength geopolymers industrial by-product precursor technogenic silica gel Renewable energy sources TJ807-830 Bumanis Girts Vaiciukyniene Danute Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
description	The search for alternative alumosilicates source for production of alkali activated materials (AAM) is intensively researched. Wide spread of natural materials such as clays and waste materials are one of potential alternatives. In this research AAM was made from local waste brick made of red clay and calcined low-carbonate illite clay precursor and its properties evaluated. Waste silica gel containing amorphous silica from fertilizer production plant was proposed as additional raw material. 6 M and 7 M NaOH alkali activation solutions were used to obtain AAM. Raw materials were characterized by X-ray diffraction, laser particle size analyser, DTA/TG. Raw illite clay was calcined at a temperature of 700 to 800 °C. Waste brick was ground similar as raw clay and powder was obtained. Replacement of red clay with silica gel from 2–50 wt.% in mixture composition was evaluated. Results indicate that the most effective activator was 6 M NaOH solution and AAM with strength up to 13 MPa was obtained. Ground brick had the highest strength results and compressive strength of AAM reached 25 MPa. Silica gel in small quantities had little effect of AAM strength while significant strength reduction was observed with the increase silica gel content. The efflorescence was observed for samples with silica gel.
format	article
author	Bumanis Girts Vaiciukyniene Danute
author_facet	Bumanis Girts Vaiciukyniene Danute
author_sort	Bumanis Girts
title	Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
title_short	Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
title_full	Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
title_fullStr	Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
title_full_unstemmed	Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor
title_sort	mechanical properties of alkali activated material based on red clay and silica gel precursor
publisher	Sciendo
publishDate	2021
url	https://doaj.org/article/b305c3a4a71842278c8cd6ea992c9f47
work_keys_str_mv	AT bumanisgirts mechanicalpropertiesofalkaliactivatedmaterialbasedonredclayandsilicagelprecursor AT vaiciukynienedanute mechanicalpropertiesofalkaliactivatedmaterialbasedonredclayandsilicagelprecursor
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Mechanical Properties of Alkali Activated Material Based on Red Clay and Silica Gel Precursor

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