Gregor Trtnik (Author), Marko Valič (Author), Franci Kavčič (Author), Goran Turk (Author)

Abstract

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.

Keywords

hidratacija;cementna pasta;ultrazvočni valovi;vezanje;prehod;odboj;hydration;cement paste;ultrasonic wave transmition;ultrasonic wave reflection;setting;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
UDC: 624.01
COBISS: 4685921 Link will open in a new window
ISSN: 0008-8846
Views: 2273
Downloads: 873
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Other data

Secondary language: English
Secondary keywords: hidratacija;cementna pasta;ultrazvočni valovi;vezanje;prehod;odboj;
File type: application/pdf
Type (COBISS): Not categorized
Pages: str. 876-882
Volume: ǂLetn. ǂ39
Issue: ǂšt. ǂ10
Chronology: 2009
DOI: 10.1016/j.cemconres.2009.07.002
ID: 8312270