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Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste
Trtnik, Gregor (Avtor), Turk, Goran (Avtor), Kavčič, Franci (Avtor), Bokan-Bosiljkov, Violeta (Avtor)

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Izvleček
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.

Jezik:Angleški jezik
Ključne besede:hidration, cement paste, ultrasonic wave transmition, initial setting time
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2008
Založnik:Elsevier
Št. strani:str. 1336-1342
Številčenje:Letn. 38, št 11
UDK:691.5
ISSN pri članku:0008-8846
DOI:10.1016/j.cemconres.2008.08.003 Povezava se odpre v novem oknu
COBISS.SI-ID:4294497 Povezava se odpre v novem oknu
Število ogledov:251
Število prenosov:88
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

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

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:hidratacija, cementna pasta, prehod ultrazvočnih valov, začetni čas vezanja

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