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

Povzetek

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.

Ključne besede

hidratacija;cementna pasta;prehod ultrazvočnih valov;začetni čas vezanja;hidration;cement paste;ultrasonic wave transmition;initial setting time;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: Elsevier
UDK: 691.5
COBISS: 4294497 Povezava se bo odprla v novem oknu
ISSN: 0008-8846
Št. ogledov: 2256
Št. prenosov: 978
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarne ključne besede: hidratacija;cementna pasta;prehod ultrazvočnih valov;začetni čas vezanja;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 1336-1342
Letnik: ǂLetn. ǂ38
Zvezek: ǂšt ǂ11
Čas izdaje: 2008
DOI: 10.1016/j.cemconres.2008.08.003
ID: 8312276