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)

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
• Typology: 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
• PID: 20.500.12556/RUL-32107
• UDC: 624.01
• ISSN on article: 0008-8846
• DOI: 10.1016/j.cemconres.2009.07.002
• COBISS.SI-ID: 4685921
• Publication date in RUL: 10.07.2015

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

Secondary language

• Language: English
• Keywords: hidratacija, cementna pasta, ultrazvočni valovi, vezanje, prehod, odboj