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Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste
ID Trtnik, Gregor (Author), ID Turk, Goran (Author), ID Kavčič, Franci (Author), ID Bokan-Bosiljkov, Violeta (Author)

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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.

Language:English
Keywords:hidration, cement paste, ultrasonic wave transmition, initial setting time
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publisher:Elsevier
Year:2008
Number of pages:Str. 1336-1342
Numbering:Letn. 38, št 11
PID:20.500.12556/RUL-32113 This link opens in a new window
UDC:691.5
ISSN on article:0008-8846
DOI:10.1016/j.cemconres.2008.08.003 This link opens in a new window
COBISS.SI-ID:4294497 This link opens in a new window
Publication date in RUL:10.07.2015
Views:2725
Downloads:1110
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Record is a part of a journal

Title:Cement and concrete research
Shortened title:Cem. concr. res.
Publisher:Pergamon Press.
ISSN:0008-8846
COBISS.SI-ID:5819399 This link opens in a new window

Secondary language

Language:English
Keywords:hidratacija, cementna pasta, prehod ultrazvočnih valov, začetni čas vezanja

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