20.500.12556/RUL-32107 Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes This paper presents the comparison between ultrasonic wave transmission (USWT) method and ultrasonic wave reflection (USWR) method in their ability to monitor the setting process of cement pastes. The velocity of ultrasonic longitudinal waves and shear wave reflection coefficient were measured simultaneously on cement pastes with different hydration kinetics. Even though both methods are able to reliably monitor the hydration process and formation of structure of an arbitrary cement paste, they monitor the setting process in different ways. The relationship between the velocity of longitudinal waves and shear wave reflection coefficient can be simplified into three characteristic phases and the end of the first phase can be used to define the beginning of the setting process of cement paste. (C) 2009 Elsevier Ltd. All rights reserved. hydration cement paste ultrasonic wave transmition ultrasonic wave reflection setting hidratacija cementna pasta ultrazvočni valovi vezanje prehod odboj true false false Angleški jezik Angleški jezik Neznano 2015-07-10 10:12:00 2015-07-10 10:12:00 2022-11-21 15:02:54 0000-00-00 00:00:00 2009 0 0 Str. 876-882 št. 10 Letn. 39 2009 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.01 0008-8846 10.1016/j.cemconres.2009.07.002 4685921 5819399 ComparisonUSM%2DCCR2009_n.pdf ComparisonUSM%2DCCR2009_n.pdf 1 A5E2B493605EF4FF44890795DF276224 4e99956654016fe125a4792173ebc7ec9873b8da662688935dab7f1cf91b69ee 0ecbe81c-a1ae-11eb-a523-00155dcfd717 20.500.12556/rul/33b88334-4a90-4bdf-b685-17ef8610c335 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=85618 Fakulteta za gradbeništvo in geodezijo 0 0 0