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Setting times measurements of portland cements with pulsed USWR method = Merjenje časov vezanja portland cementov s pulzno USWR metodoValič, Marko ...In this paper we present the results of parallel measurements on PC cements; the setting times with a standard Vicat apparatus and the reflection coefficient changes ▫$\Delta$▫r during early ... hydration with a pulsed ultrasonic shear wave reflection (USWR) hardening meter. The measurements were carried out on the same samples and under the same ambient conditions. In contrast to the Vicat needle test, the USWR method gives continuous information on the stiffening and hardening process over time via ▫$\Delta$▫r changes, as the rigidity of the pastes grow on hydration. The magnitudes of the ▫$\Delta$▫r change in selected cement pastes (CEM I 52.5R and PC 30dz 45s) at Vicat setting times are used to determine the correlation between the two methods. Through such calibration the setting times of production samples can be satisfactorily measured with the USWR method.Source: Kovine zlitine tehnologije = Metals alloys technologies. - ISSN 1318-0010 (Letn. 32, št. 1/2, 1999, str. 83-85)Type of material - article, component partPublish date - 1999Language - englishCOBISS.SI-ID - 559715
Author
Valič, Marko |
Stepišnik, Janez |
Gabrijelčič, Magda, 1960- |
Vuk, Tomaž, 1968- |
Reščič, Lojzka
Topics
ultrazvok |
strižno valovanje |
cement |
časi vezanja |
Vicatov aparat |
ultrasound |
shear wave |
cement |
setting time |
Vicat apparatus
source: Kovine zlitine tehnologije = Metals alloys technologies. - ISSN 1318-0010 (Letn. 32, št. 1/2, 1999, str. 83-85)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Valič, Marko | 00303 |
Stepišnik, Janez | 02018 |
Gabrijelčič, Magda, 1960- | 13761 |
Vuk, Tomaž, 1968- | 16294 |
Reščič, Lojzka | 15965 |
Source: Personal bibliographies
and: SICRIS
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