The influence of temperature on the hydration process of concrete evaluated through ultrasound technique

Title: The influence of temperature on the hydration process of concrete evaluated through ultrasound technique
Author(s): Turgay Öztürk, Otto Kroggel, Peter Grübl
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Nb references: 12
Language: English

Abstract: An ultrasonic wave reflection test method was developed to characterize the state of early-age cement-based materials. It analyses the wave reflection from the interface between a well known material and the hardening concrete. Experimental results have shown that there is a distinct correlation between the development of the wave reflection and the development of mechanical properties of concrete. A large number of investigations have been carried out by the authors concerning the setting and hardening of cement-based materials. The investigation presented deals with the influence of the temperature on the hydration process evaluated through ultrasonic techniques. Concrete specimen were produced and stored under controlled curing conditions at specific temperatures. Beneath the wave reflection method the ultrasonic wave velocity method measured in through transmission were performed. The obtained results were correlated with concrete technological properties of the specimen: setting time, compressive strength and degree of hydration.
It is obvious that the applied experimental technique is able to detect even small effects on the mechanical properties of the concrete due to the temperature during the hardening process. The accelerating influence of the temperature on the hydration process of cement can be detected with ultrasound.

Online publication: 2004-03-25
Classification: Early-Age Measurements
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.017