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A new US procedure to determine setting period of cement pastes, mortars, and concretesGams, Matija, gradbeništvo ; Trtnik, Gregor, 1979-The paper presents a new method to determine the transition of different cementitious materials from liquid to solid state, usually defined as a setting period. The method is based on a ratio between ... maximum amplitudes of two dominant frequency ranges that appear in the frequency spectrum of ultrasonic (US) P-waves, called a TG parameter. Clear and unambiguous correlation between characteristic points in the evolution of TG parameter andpenetration resistance in time is established on samples with different material composition during the early hydration process. The correlation indicates that TG parameter detects the development of rigid bonds between hydrating cement particles. The ability and accuracy of the method to determine setting period is unaffected by the material composition. Non-destructive nature and insensitivity of the method to aggregate size givesit an advantage over penetration methods and other US methods in determining the setting period of cement pastes, mortars, and concretes.Source: Cement and concrete research. - ISSN 0008-8846 (Vol. 53, nov. 2013, str. 9-17)Type of material - article, component part ; adult, seriousPublish date - 2013Language - englishCOBISS.SI-ID - 1967207
Author
Gams, Matija, gradbeništvo |
Trtnik, Gregor, 1979-
Topics
hidratacija |
agregat |
beton |
vezanje |
hydration |
aggregate |
concrete |
setting
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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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Gams, Matija, gradbeništvo | 24339 |
Trtnik, Gregor, 1979- | 27666 |
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