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Wednesday, May 15 • 4:30pm - 5:00pm
(Architecture) Dilatation of Stone Upon Exposure to Water: Know Your Stone and Its Environment

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The swelling of stone by exposure to liquid water or water vapor – referred to respectively as hydric or hygric dilatation – has been understood as an important mechanism of deterioration of stone since the 1980s. Nonetheless these mechanisms and the stones that may exhibit them remain largely ignored or unexamined by the American architectural conservation community. Understanding the historic materials that show significant swelling with exposure to water as well as vetting potential replacement candidates for in situ materials that are no longer available are important activities for the architectural conservator. This presentation provides a short history of the initial work in understanding this property of stone, a review of subsequent (and recent) developments in experimental techniques to evaluate this property, and some recent results in vetting historic and contemporary stone resources.

Speakers
avatar for George Wheeler

George Wheeler

Professor/Educator, Highbridge Materials Consulting, Inc.
George Wheeler is Senior Scientist with Highbridge Materials Consulting. He served as the Director of Conservation in the Historic Preservation Program at Columbia University since 2004 following a 25-year career in the Department of Scientific Research at the Metropolitan Museum... Read More →


Wednesday May 15, 2019 4:30pm - 5:00pm EDT
Salon A1, Uncas Ballroom Sky Convention Center, Mohegan Sun
  Specialty Session, Architecture