The NCPTT 2010 Annual Report outlines research, training, and grant activities undertaken by the Center during FY2010.
NCPTT advances the application of science and technology to historic preservation. Working in the fields of archeology, architecture, landscape architecture and materials conservation, the Center accomplishes its mission through training, education, research, technology transfer and partnerships.
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For the past several years, NCPTT’s Architecture and Engineering program has been working to understand the potential impact of climate change on cultural resources and conversely, the impact of cultural resources on climate change. Working with a variety of partners, the National Center has promoted historic preservation as an important component of sustainable development. Conservation of our existing built environment includes reusing historic and older buildings, improving their energy and environmental performance, and reinvesting in older and historic communities.
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Mary Striegel will be the keynote speaker at the annual meeting of the American Society for Non-destructive Testing, to be held March 17 in St. Louis, Mo.
Read more →The topic is the use of eddy currents for identification of metals (ferrous and non-ferrous), measuring the thickness of corrosion, and the recovery of serial numbers and/or images beneath corrosion.
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NCPTT is organizing a session on non-destructive testing in historic preservation as part of the American Society for Non-destructive Testing’s meeting on March 17, 2009 in St. Louis.
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The objective of this study was to develop a test method to measure the hardness of masonry mortars with a pendulum hammer.
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Investigators from the Nelson-Atkins Museum of Art undertook this project to determine if worn-off or illegible hallmarks on silver and gold works of art could be imaged using scanning acoustic imaging techniques.
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Hallmarks on silver objects can reveal much about the history of the piece. the name of the silversmith, the date of manufacture, the quality of the metal alloy, as well as other information can be determined form the study of the hallmarks.
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The use of hallmarks on silver has a long history, dating back to at least the sixth century AD.
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Eddy current testing methods were used to characterize model gilding layers on bronzes and to make measurements on gilded bronze objects in the Freer Gallery of Art.
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