Gregor Trtnik (Author), Goran Turk (Author), Franci Kavčič (Author), Violeta Bokan-Bosiljkov (Author)

Abstract

In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously. The Vicar Needle Test was used in order to determine the initial setting time of cement pastes. Different cement pastes were prepared in order to check the influence of the water/cement ratio, type of cement, curing temperature, cement fineness, and some clinker compositions, on the relationship between the initial setting time and ultrasonic pulse velocity. It was found that the initial setting time of an arbitrary cement paste can be estimated very accurately by the time the first inflection point appears on the ultrasonic pulse velocity curve. Moreover, it can be estimated quite accurately by the time the ultrasonic pulse velocity reaches a fixed value, close to the value of the ultrasonic pulse velocity in water.

Keywords

hidratacija;cementna pasta;prehod ultrazvočnih valov;začetni čas vezanja;hidration;cement paste;ultrasonic wave transmition;initial setting time;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: Elsevier
UDC: 691.5
COBISS: 4294497 Link will open in a new window
ISSN: 0008-8846
Views: 2256
Downloads: 978
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Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary keywords: hidratacija;cementna pasta;prehod ultrazvočnih valov;začetni čas vezanja;
File type: application/pdf
Type (COBISS): Not categorized
Pages: str. 1336-1342
Volume: ǂLetn. ǂ38
Issue: ǂšt ǂ11
Chronology: 2008
DOI: 10.1016/j.cemconres.2008.08.003
ID: 8312276