Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Application of ultrasonic surface waves to characterize ASR damage in concrete
In this paper, ultrasonic surface waves are used to characterize ASR-induced cracking in concrete specimens. A practical one-sided test method to measure ultrasonic surface wave velocity in concrete is described. The ultrasonic tests are carried out on mature concrete prism specimens that contain either known reactive (vycor glass and opal) or known nonreactive (Ottawa sand and limestone) aggregates. The extent of ASR-based cracking is inferred from free expansion data from these prisms. The test results demonstrate that surface wave velocity is sensitive to ASR-induced cracking in the concrete: velocity reduces with an increase in free expansion. Based on the test results, a preliminary data interpretation procedure to distinguish reactive from non-reactive aggregate concrete (through the resulting cracking in concrete) is proposed.
Application of ultrasonic surface waves to characterize ASR damage in concrete
In this paper, ultrasonic surface waves are used to characterize ASR-induced cracking in concrete specimens. A practical one-sided test method to measure ultrasonic surface wave velocity in concrete is described. The ultrasonic tests are carried out on mature concrete prism specimens that contain either known reactive (vycor glass and opal) or known nonreactive (Ottawa sand and limestone) aggregates. The extent of ASR-based cracking is inferred from free expansion data from these prisms. The test results demonstrate that surface wave velocity is sensitive to ASR-induced cracking in the concrete: velocity reduces with an increase in free expansion. Based on the test results, a preliminary data interpretation procedure to distinguish reactive from non-reactive aggregate concrete (through the resulting cracking in concrete) is proposed.
Application of ultrasonic surface waves to characterize ASR damage in concrete
Anwendung von Ultraschall-Oberflächenwellen zur Charakterisierung von Schäden in Beton durch Alkali-Siliciumdioxid-Reaktionen
Gallo, G. (Autor:in) / Popovics, J.S. (Autor:in)
2006
8 Seiten, 4 Bilder, 2 Tabellen, 3 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
(Electrical measurement to characterize concrete damage)
| British Library Online Contents | 2002
Concrete damage evolution analysis by backscattered ultrasonic waves
| Tema Archiv | 2003
SCIENTIFIC REPORTS - Electrical measurement to characterize concrete damage
| Online Contents | 2002
| British Library Online Contents | 2018
Propagation Characteristics of Ultrasonic Waves in Concrete Medium with Local Damage
| British Library Conference Proceedings | 2011