Performance of alkaline activated slag at high temperatures

Performance of alkaline activated slag at high temperatures

This paper presents an investigation into the performance of alkali-activated slag (AAS) mortar exposed to elevated temperatures. Sodium silicate, sodium hydroxide and a mix (waterglass) with a modulus (SiO2/Na20) of 1.5 were used as activators. The specimens were heated in an electric furnace up to...

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Main Authors: R. Mejía de Gutiérrez, J. Maldonado, C. Gutiérrez
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2004-12-01
Series:Materiales de Construccion
Subjects:
alkaline activated slag
refractory materials
fire resistance
alternative cements
Online Access:http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/257
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spelling doaj-93bacabd3b204b60b195040e5a9ab0372021-05-05T07:36:32ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262004-12-0154276879210.3989/mc.2004.v54.i276.257246Performance of alkaline activated slag at high temperaturesR. Mejía de Gutiérrez0J. Maldonado1C. Gutiérrez2Grupo de Materiales Compuestos, Escuela de Ingeniería de Materiales, Universidad del Valle, CaliGrupo de Materiales Compuestos, Escuela de Ingeniería de Materiales, Universidad del Valle, CaliGrupo de Materiales Compuestos, Escuela de Ingeniería de Materiales, Universidad del Valle, CaliThis paper presents an investigation into the performance of alkali-activated slag (AAS) mortar exposed to elevated temperatures. Sodium silicate, sodium hydroxide and a mix (waterglass) with a modulus (SiO2/Na20) of 1.5 were used as activators. The specimens were heated in an electric furnace up to 1000 ºC in steps of 200 ºC for a constant period of 2 hours. The weight loss, residual compressive strength, resistance to chloride ion penetration, porosity and capillary sorption were evaluated and the results were compared with those of ordinary and blended Portland cement mortarhttp://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/257alkaline activated slagrefractory materialsfire resistancealternative cements
collection DOAJ
language English
format Article
sources DOAJ
author R. Mejía de Gutiérrez
J. Maldonado
C. Gutiérrez
spellingShingle R. Mejía de Gutiérrez
J. Maldonado
C. Gutiérrez
Performance of alkaline activated slag at high temperatures
Materiales de Construccion
alkaline activated slag
refractory materials
fire resistance
alternative cements
author_facet R. Mejía de Gutiérrez
J. Maldonado
C. Gutiérrez
author_sort R. Mejía de Gutiérrez
title Performance of alkaline activated slag at high temperatures
title_short Performance of alkaline activated slag at high temperatures
title_full Performance of alkaline activated slag at high temperatures
title_fullStr Performance of alkaline activated slag at high temperatures
title_full_unstemmed Performance of alkaline activated slag at high temperatures
title_sort performance of alkaline activated slag at high temperatures
publisher Consejo Superior de Investigaciones Científicas
series Materiales de Construccion
issn 0465-2746
1988-3226
publishDate 2004-12-01
description This paper presents an investigation into the performance of alkali-activated slag (AAS) mortar exposed to elevated temperatures. Sodium silicate, sodium hydroxide and a mix (waterglass) with a modulus (SiO2/Na20) of 1.5 were used as activators. The specimens were heated in an electric furnace up to 1000 ºC in steps of 200 ºC for a constant period of 2 hours. The weight loss, residual compressive strength, resistance to chloride ion penetration, porosity and capillary sorption were evaluated and the results were compared with those of ordinary and blended Portland cement mortar
topic alkaline activated slag
refractory materials
fire resistance
alternative cements
url http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/257
work_keys_str_mv AT rmejiadegutierrez performanceofalkalineactivatedslagathightemperatures
AT jmaldonado performanceofalkalineactivatedslagathightemperatures
AT cgutierrez performanceofalkalineactivatedslagathightemperatures
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