Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste

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

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
• UDC: 691.5
• ISSN on article: 0008-8846
• DOI: 10.1016/j.cemconres.2008.08.003
• COBISS.SI-ID: 4294497
• 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, prehod ultrazvočnih valov, začetni čas vezanja