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Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes
Trtnik, Gregor (Author), Valič, Marko (Author), Kavčič, Franci (Author), Turk, Goran (Author)

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Abstract
This paper presents the comparison between ultrasonic wave transmission (USWT) method and ultrasonic wave reflection (USWR) method in their ability to monitor the setting process of cement pastes. The velocity of ultrasonic longitudinal waves and shear wave reflection coefficient were measured simultaneously on cement pastes with different hydration kinetics. Even though both methods are able to reliably monitor the hydration process and formation of structure of an arbitrary cement paste, they monitor the setting process in different ways. The relationship between the velocity of longitudinal waves and shear wave reflection coefficient can be simplified into three characteristic phases and the end of the first phase can be used to define the beginning of the setting process of cement paste. (C) 2009 Elsevier Ltd. All rights reserved.

Language:English
Keywords:hydration, cement paste, ultrasonic wave transmition, ultrasonic wave reflection, setting
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2009
Number of pages:Str. 876-882
Numbering:Letn. 39, št. 10
UDC:624.01
ISSN on article:0008-8846
DOI:10.1016/j.cemconres.2009.07.002 This link opens in a new window
COBISS.SI-ID:4685921 This link opens in a new window
Views:1990
Downloads:822
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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, ultrazvočni valovi, vezanje, prehod, odboj

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