“Stress memory” of concrete - Ultrasonic investigations

Title: “Stress memory” of concrete - Ultrasonic investigations
Author(s): Otto Kroggel, Tina Wilhelm
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Nb references: 11
Language: English

Abstract: Ultrasonic scattering investigations in loading and unloading experiments have proven that the transmitted and backscattered energy of ultrasonic waves precisely reflects the distortion processes taking place in concrete due to mechanical compressive loading. Additional experimental and numerical investigations on model concrete, revealing concrete on the meso scale, have clarified the correlation between ultrasonic wave scattering and internal alterations within the structure of concrete. As a practical application of these findings it has been shown that the effect of clearly distinguishable elastic and non-elastic effects within the material can be used to get an estimate of the load history - especially the maximum load of concrete and a concrete structure during its life time.

Keywords: stress memory, ultrasound, ultrasonic, loading test

Online publication: 2006-08-02
Classification: 3.3 Theme 3: Monitoring, Repair and Maintenance of Concrete Structures
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.099