Microstructural evolution of cement pastes blended with two types of volcanic materials

Abstract: This article presents results of a research about the effect to incorporate Colombian volcanic materials as a replacement of ordinary Portland cement on its hydration process. For this particular case were used Tolima volcanic material (TVM) and Puracé volcanic material (PVM). Pastes with...

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Autores principales:	Burgos,Diana M., Cardona,Luisa M., Guzmán,Álvaro, Hossain,Khandaker M. Anwar, Delvasto,Silvio
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2017
Materias:	Volcanic materials blended cements hydration products pozzolanic reactivity.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000300447
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spelling	oai:scielo:S0718-915X20170003004472018-03-05Microstructural evolution of cement pastes blended with two types of volcanic materialsBurgos,Diana M.Cardona,Luisa M.Guzmán,ÁlvaroHossain,Khandaker M. AnwarDelvasto,Silvio Volcanic materials blended cements hydration products pozzolanic reactivity. Abstract: This article presents results of a research about the effect to incorporate Colombian volcanic materials as a replacement of ordinary Portland cement on its hydration process. For this particular case were used Tolima volcanic material (TVM) and Puracé volcanic material (PVM). Pastes with 100% ordinary Portland cement and blended cement pastes containing 20% by of weight volcanic materials were prepared. The monitoring and identification of the hydration characteristics were carried out using Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG/DTG) and scanning electron microscopy (SEM) at 7, 28, 90 and 360 curing days. The results indicated that the main phases of the blended cement pastes containing PVM were ettringite and calcium silicate hydrate (CSH), which confirmed the pozzolanic activity of this material. The blended cement pastes containing TVM exhibited no significant differences in hydration products compared to the reference pastes, due to its inert nature.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.16 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000300447en10.7764/rdlc.16.3.447
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Volcanic materials blended cements hydration products pozzolanic reactivity.
spellingShingle	Volcanic materials blended cements hydration products pozzolanic reactivity. Burgos,Diana M. Cardona,Luisa M. Guzmán,Álvaro Hossain,Khandaker M. Anwar Delvasto,Silvio Microstructural evolution of cement pastes blended with two types of volcanic materials
description	Abstract: This article presents results of a research about the effect to incorporate Colombian volcanic materials as a replacement of ordinary Portland cement on its hydration process. For this particular case were used Tolima volcanic material (TVM) and Puracé volcanic material (PVM). Pastes with 100% ordinary Portland cement and blended cement pastes containing 20% by of weight volcanic materials were prepared. The monitoring and identification of the hydration characteristics were carried out using Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG/DTG) and scanning electron microscopy (SEM) at 7, 28, 90 and 360 curing days. The results indicated that the main phases of the blended cement pastes containing PVM were ettringite and calcium silicate hydrate (CSH), which confirmed the pozzolanic activity of this material. The blended cement pastes containing TVM exhibited no significant differences in hydration products compared to the reference pastes, due to its inert nature.
author	Burgos,Diana M. Cardona,Luisa M. Guzmán,Álvaro Hossain,Khandaker M. Anwar Delvasto,Silvio
author_facet	Burgos,Diana M. Cardona,Luisa M. Guzmán,Álvaro Hossain,Khandaker M. Anwar Delvasto,Silvio
author_sort	Burgos,Diana M.
title	Microstructural evolution of cement pastes blended with two types of volcanic materials
title_short	Microstructural evolution of cement pastes blended with two types of volcanic materials
title_full	Microstructural evolution of cement pastes blended with two types of volcanic materials
title_fullStr	Microstructural evolution of cement pastes blended with two types of volcanic materials
title_full_unstemmed	Microstructural evolution of cement pastes blended with two types of volcanic materials
title_sort	microstructural evolution of cement pastes blended with two types of volcanic materials
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2017000300447
work_keys_str_mv	AT burgosdianam microstructuralevolutionofcementpastesblendedwithtwotypesofvolcanicmaterials AT cardonaluisam microstructuralevolutionofcementpastesblendedwithtwotypesofvolcanicmaterials AT guzmanalvaro microstructuralevolutionofcementpastesblendedwithtwotypesofvolcanicmaterials AT hossainkhandakermanwar microstructuralevolutionofcementpastesblendedwithtwotypesofvolcanicmaterials AT delvastosilvio microstructuralevolutionofcementpastesblendedwithtwotypesofvolcanicmaterials
_version_	1714206286533361664

Microstructural evolution of cement pastes blended with two types of volcanic materials

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