A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved Rayleigh wave velocity measurement for nondestructive early-age concrete monitoring
A modified one-sided technique is proposed for Rayleigh wave (R-wave) velocity measurement in concrete. Wave scattering from material heterogeneity and near-field effects may disrupt sensed R-wave signals in concrete, which is manifested as signal dispersion. Conventional one-sided measurement techniques for concrete do not consider dispersion of R-waves. In this study, the maximum energy arrival concept is adopted to determine the wave velocity by employing continuous wavelet transform. Experimental and numerical studies are performed to show the effectiveness of the proposed method. The method is applied to monitor the strength development of early-age concrete exposed to various curing conditions. Results reveal that the proposed method can be effectively used to measure the R-wave velocity in concrete structures and further to monitor the development of compressive strength in early-age concrete, regardless of the concrete moist curing condition.
Improved Rayleigh wave velocity measurement for nondestructive early-age concrete monitoring
A modified one-sided technique is proposed for Rayleigh wave (R-wave) velocity measurement in concrete. Wave scattering from material heterogeneity and near-field effects may disrupt sensed R-wave signals in concrete, which is manifested as signal dispersion. Conventional one-sided measurement techniques for concrete do not consider dispersion of R-waves. In this study, the maximum energy arrival concept is adopted to determine the wave velocity by employing continuous wavelet transform. Experimental and numerical studies are performed to show the effectiveness of the proposed method. The method is applied to monitor the strength development of early-age concrete exposed to various curing conditions. Results reveal that the proposed method can be effectively used to measure the R-wave velocity in concrete structures and further to monitor the development of compressive strength in early-age concrete, regardless of the concrete moist curing condition.
Improved Rayleigh wave velocity measurement for nondestructive early-age concrete monitoring
Verbesserte Messung der Rayleighwellengeschwindigkeit zur zerstörungsfreien Überwachung von frischem Beton
Shin, S.W. (author) / Yun, C.B. (author) / Popovics, J.S. (author) / Kim, J.H. (author)
Research in Nondestructive Evaluation ; 18 ; 45-68
2007
24 Seiten, 19 Bilder, 4 Tabellen, 26 Quellen
Article (Journal)
English
Improved Rayleigh Wave Velocity Measurement for Nondestructive Early-Age Concrete Monitoring
| British Library Online Contents | 2007
Nondestructive Curing Monitoring of Early-Age Concrete Using Rayleigh Wave Velocity
| British Library Online Contents | 2006
Nondestructive strength evaluation of early-age concrete using longitudinal wave velocity
| British Library Conference Proceedings | 2001
Nondestructive Monitoring of Early Age Concrete
| British Library Conference Proceedings | 2000
Nondestructive Monitoring of Early Age Concrete
| ASCE | 2000