Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Comparison between different techniques for monitoring setting and hardening of concrete
Three different techniques to study the evolution of the setting and the hardening of concrete are compared: (1) ultrasonic monitoring using the FreshCon system, (2) a resistivity method and (3) the mechanical Kelly-Bryant method. The experimental tests were carried out on two slag cement concretes in order to compare these methods and to evaluate their ability to monitor continuously the setting and hardening process of concretes with different slag content in the cement. Globally, the initial setting age values given by the three methods were in good agreement, but only the two non-destructive methods (ultrasonic and electric) allow determining the final setting. However, the three methods are complementary and the nondestructive methods give additional information (like chemical reactions, stiffness evolution) about the hydration process of cementitious materials. They are also able to tackle the differences in the setting behaviour due to the slag content in the cement.
Comparison between different techniques for monitoring setting and hardening of concrete
Three different techniques to study the evolution of the setting and the hardening of concrete are compared: (1) ultrasonic monitoring using the FreshCon system, (2) a resistivity method and (3) the mechanical Kelly-Bryant method. The experimental tests were carried out on two slag cement concretes in order to compare these methods and to evaluate their ability to monitor continuously the setting and hardening process of concretes with different slag content in the cement. Globally, the initial setting age values given by the three methods were in good agreement, but only the two non-destructive methods (ultrasonic and electric) allow determining the final setting. However, the three methods are complementary and the nondestructive methods give additional information (like chemical reactions, stiffness evolution) about the hydration process of cementitious materials. They are also able to tackle the differences in the setting behaviour due to the slag content in the cement.
Comparison between different techniques for monitoring setting and hardening of concrete
Vergleich zwischen verschiedenen Verfahren zur Überwachung des Abbindens und Aushärtens von Beton
Darquennes, Aveline (Autor:in) / Staquet, Stephanie (Autor:in) / Espion, Bernard (Autor:in) / Germain, Olivier (Autor:in) / Pierre, Christian (Autor:in)
2009
7 Seiten, 6 Bilder, 1 Tabelle, 9 Quellen
(nicht paginiert)
Aufsatz (Konferenz)
Datenträger
Englisch
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