Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 96: Issue 2
Microstructure development in mixes of calcium aluminate cement with silica fume or fly ash
Authors:
Ana Hidalgo Químico Física de Materiales de Construcción Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC) Madrid 28033 Spain

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J. García Químico Física de Materiales de Construcción Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC) Madrid 28033 Spain

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Ma. Alonso Químico Física de Materiales de Construcción Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC) Madrid 28033 Spain

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L. Fernández Químico Física de Materiales de Construcción Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC) Madrid 28033 Spain

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Carmen Andrade Químico Física de Materiales de Construcción Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC) Madrid 28033 Spain

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Pages:
335–345
Online Publication Date:
05 Feb 2009
Publication Date:
01 May 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8439-3
Keywords:
calcium; aluminate cement; fly ash; microstructure; silica fume; TG-DTA; WAXS
Restricted access

Abstract  

The most widely identified degradation process suffered by calcium aluminate cement (CAC) is the so-called conversion of hexagonal calcium aluminate hydrate to cubic form. This conversion is usually followed by an increase in porosity determined by the different densities of these hydrates and the subsequent loss of strength. Mixes of calcium aluminate cement (CAC) and silica fume (SF) or fly ash (FA) represent an interesting alternative for the stabilization of CAC hydrates, which might be attributed to a microstructure based mainly on aluminosilicates. This paper deals with the microstructure of cement pastes fabricated with mixtures CAC-SF and CAC-FA and its evolution over time. Thermal analysis (DTA/TG), X-ray diffraction (XRD) and mid-infrared spectroscopy (FTIR) have been used to assess the microstructure of these formulations.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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