TY - GEN A1 - Maierhofer, Christiane A1 - Krankenhagen, Rainer A1 - Röllig, Mathias A1 - Kalisch, U. A1 - Meinhardt, J. ED - Büyüköztürk, O. ED - Tasdemir, M.A. ED - Günes, O. ED - Akkaya, Y. T1 - Development and application of active thermography for monitoring of deterioration processes of historic structures N2 - As shown recently, the quantification of damage in historic masonry structures is possible by using active thermography. In this paper, a case study is presented concerning systematic studies of the determination of damage size and prognosis of damage increase inside a sandstone column by using different approaches of active thermography. Various heating sources as well as impulse and periodic heating have been compared. Reproducible investigations in regular time intervals for structural monitoring are possible. KW - Active thermography KW - Camera calibration KW - Historic structure KW - Monitoring KW - Sandstone PY - 2013 SN - 978-94-007-0722-1 U6 - https://doi.org/10.1007/978-94-007-0723-8_154 SN - 2211-0844 N1 - Serientitel: RILEM bookseries – Series title: RILEM bookseries VL - 6 SP - 1111 EP - 1116 PB - Springer AN - OPUS4-28263 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Maierhofer, Christiane A1 - Krankenhagen, Rainer A1 - Röllig, Mathias A1 - Mecke, R. A1 - Schiller, M. A1 - Kalisch, U. A1 - Meinhardt, J. A1 - Hennen, C. T1 - Kombination der aktiven Thermografie mit laserbasierten Verfahren zur Erfassung von 3D-Geometrien in der Denkmalpflege T2 - Fachtagung Bauwerksdiagnose - Praktische Anwendungen zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Deutschland DA - 2010-02-18 KW - ZfPBau KW - Denkmalpflege KW - Statue KW - Aktive Thermografie KW - Lichtschnittverfahren KW - Laserscanner KW - Verfahrenskombination PY - 2010 SN - 978-3-940283-24-5 IS - DGZfP-BB 121 (Poster 06) SP - 1 EP - 8 CY - Berlin AN - OPUS4-21063 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Maierhofer, Christiane A1 - Krankenhagen, Rainer A1 - Myrach, Philipp A1 - Meinhardt, J. A1 - Kalisch, U. A1 - Hennen, C. A1 - Mecke, R. A1 - Seidl, T. A1 - Schiller, M. ED - Toniolo, L. ED - Boriani, M. ED - Guidi, G. T1 - Monitoring of cracks in historic concrete structures using optical, thermal and acoustical methods N2 - Cracks are a major issue in the field of cultural heritage. In order to evaluate the significance of a crack, a long term monitoring of the damaged region is required. However, there is a lack of easy to operate tools for such monitoring measures. Therefore, new or existing methods for other applications have to be optimised for cultural heritage investigation. The paper describes the application of such crack observation methods on a historic concrete sculpture. Beside conventional methods, like mapping by hand and ultrasonic depth profiling, a novel tracking system is presented. Furthermore, the suitability of active thermography for the investigation of cracks was investigated. The results show promising prospects for these non-destructive techniques. KW - Crack monitoring KW - Concrete KW - Thermography KW - Crack mapping PY - 2015 SN - 978-3-319-08532-6 SN - 978-3-319-08533-3 U6 - https://doi.org/10.1007/978-3-319-08533-3 SN - 2198-7300 SN - 2198-7319 SP - Part II, 93 EP - 102 PB - Springer AN - OPUS4-33851 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -