F. Hameed, B. Schillinger, A. Rohatsch, M. Zawisky, H. Rauch:
"Investigations of stone consolidants by neutron imaging";
Nuclear Instruments and Methods in Physics Research A, 605 (2009), S. 150 - 153.

Kurzfassung englisch:
The chemical preservation and structural reintegration of natural stones applied in historical buildings is carried out by the use of different stone strengtheners. As these agents contain hydrogen, they offer good properties for neutron imaging. The main interest in the restoration process is the development of a suitable stone consolidant. In cooperation with the St. Stephans Cathedral and the geologists at Vienna University of Technology, we are investigating the penetration depth and distribution of different stone consolidants. These studies are being carried out with different stone samples, mostly porous natural building stones, limestones and sandstones. The two strengtheners used in this study are ethyl silicate ester (Wacker OH100) and dissolved polymethylmetacrylate (PMMA, Paraloid B72). Neutron radiography and neutron tomography can be used successfully to visualize the distribution of consolidants both in two and three dimensions

Neutron radiography; Neutron tomography; Building stones; Consolidants; Non-destructive testing

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