Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes

Trtnik, Gregor (avtor), Valič, Marko (avtor), Kavčič, Franci (avtor), Turk, Goran (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: hydration, cement paste, ultrasonic wave transmition, ultrasonic wave reflection, setting
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Leto izida: 2009
• Št. strani: Str. 876-882
• Številčenje: Letn. 39, št. 10
• PID: 20.500.12556/RUL-32107
• UDK: 624.01
• ISSN pri članku: 0008-8846
• DOI: 10.1016/j.cemconres.2009.07.002
• COBISS.SI-ID: 4685921
• Datum objave v RUL: 10.07.2015

Gradivo je del revije

• Naslov: Cement and concrete research
• Skrajšan naslov: Cem. concr. res.
• Založnik: Pergamon Press.
• ISSN: 0008-8846
• COBISS.SI-ID: 5819399

Sekundarni jezik

• Jezik: Angleški jezik
• Ključne besede: hidratacija, cementna pasta, ultrazvočni valovi, vezanje, prehod, odboj