Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 1

Calorimetric investigations of the influence of waste aluminosilicate on the hydration of different cements

Authors:
Barbara Pacewska Warsaw University of Technology Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Chemistry Lukasiewicza 17 St. 09-400 Plock Poland

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Iwona Wilińska Warsaw University of Technology Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Chemistry Lukasiewicza 17 St. 09-400 Plock Poland

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Maria Bukowska Warsaw University of Technology Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Civil Engineering Lukasiewicza 17 St. 09-400 Plock Poland

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Pages:
61–66
Online Publication Date:
28 Apr 2009
Publication Date:
01 Jul 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-008-9668-9
Keywords:
calcium aluminate cement; calorimetry; cement hydration; spent catalyst; Portland cement
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Abstract  

The aim of this work is to compare the influence of addition of waste aluminosilicate catalyst on the initial periods of hydration of different cements, i.e. calcium aluminate cements of different composition and Portland cement, basing on the calorimetric studies. Cement pastes containing up to 25 mass% of additive were studied, where the water/(cement+additive) ratio was 0.5. An attempt was undertaken to explain the mechanism of action of introduced aluminosilicate in the system of hydrating cement, particularly in the case of calcium aluminate cement pastes. It was found that the presence of fine-grained additive caused in all studied cases the increase of the amount of released heat in the first period after the addition of water. In the case of aluminate cements with aluminosilicate addition, a significant reduction of induction time and faster precipitation of hydration products were observed compared to the reference sample (without additive). In the experimental conditions, the additive caused the acceleration of aluminate cements hydration, and the mechanism of its action is probably complex and can encompass: nucleative action of small grains and formation of new chemical compounds.

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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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