TY - JOUR
T1 - Characterization of cement-based materials using diffuse ultrasound
AU - Becker, Jens
AU - Jacobs, Laurence J.
AU - Qu, Jianmin
PY - 2003/12
Y1 - 2003/12
N2 - The objective of this research is to develop a quantitative understanding of the propagation of ultrasonic waves in cementbased materials by examining specimens made of a portland cement-paste matrix and glass bead "aggregate." The incident ultrasonic waves are broadband and contain wavelengths on the order of the glass bead scatterers. Experimentally measured ultrasonic waves are interpreted using diffusion theory to quantitatively measure dissipation and diffusion coefficients as functions of frequency and microstructure. These results provide a basic understanding of the effect of some features of the microstructure on the propagation of ultrasonic waves, as well as supplying a first step in the characterization of distributed damage using ultrasonic methodologies.
AB - The objective of this research is to develop a quantitative understanding of the propagation of ultrasonic waves in cementbased materials by examining specimens made of a portland cement-paste matrix and glass bead "aggregate." The incident ultrasonic waves are broadband and contain wavelengths on the order of the glass bead scatterers. Experimentally measured ultrasonic waves are interpreted using diffusion theory to quantitatively measure dissipation and diffusion coefficients as functions of frequency and microstructure. These results provide a basic understanding of the effect of some features of the microstructure on the propagation of ultrasonic waves, as well as supplying a first step in the characterization of distributed damage using ultrasonic methodologies.
KW - Diffusion coefficient
KW - Microstructures
KW - Portland cement
KW - Ultrasonic tests
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U2 - 10.1061/(ASCE)0733-9399(2003)129:12(1478)
DO - 10.1061/(ASCE)0733-9399(2003)129:12(1478)
M3 - Article
AN - SCOPUS:0347353593
SN - 0733-9399
VL - 129
SP - 1478
EP - 1484
JO - Journal of Engineering Mechanics
JF - Journal of Engineering Mechanics
IS - 12
ER -