Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 62: Issue 2
Gravimetric, Volumetric And Calorimetric Studies of The Surface Structure of Portland Cement
Authors:
E. Robens der Johannes Gutenberg-Universität Institut für Anorganische und Analytische Chemie D-55099 Mainz Germany D-55099 Mainz Germany

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B. Benzler Mettler Toledo GmbH Ockerweg 3 D-35379 Giessen Germany Ockerweg 3 D-35379 Giessen Germany

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H. Reichert POROTEC GmbH Engelthaler Strasse 31 D-60435 Frankfurt am Main Germany Engelthaler Strasse 31 D-60435 Frankfurt am Main Germany

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K. Unger der Johannes Gutenberg-Universität Institut für Anorganische und Analytische Chemie D-55099 Mainz Germany D-55099 Mainz Germany

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Pages:
435–441
Online Publication Date:
16 Aug 2006
Publication Date:
01 Nov 2000
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010194232213
Keywords:
calorimetry; cement; gravimetry; sorption; surface; thermoporometry; volumetry; water adsorption
Restricted access

Abstract  

Dry cement powder and hardened cement paste were characterised by means of laser granulometry and volumetric measurement of the nitrogen adsorption isotherm at 77 K. Water sorption isotherms at ambient temperature were measured stepwise by means of a gravimetric apparatus. The isotherms show a very large hysteresis loop, reaching down to zero relative pressure, which reflects swelling of the cement gel. Thermoporometric measurements reveal that swelling of that gel consists in water take up within the continuously growing structure; no stable pore structure could be observed.

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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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