Conservation Workshop: Salts in Stone and Brick Masonry: Problems and Solutions
Sat. 24 October, 9:00am - 5:00pm
Lower Gallery, Meyerson Hall
CONSERVATION WORKSHOP
SALTS IN STONE AND BRICK MASONRY: PROBLEMS AND SOLUTIONS
Lecturer: A. Elena Charola, Ph.D.
When: Saturday, October 24th, 2009 9:00 - 5:00
Where: Lower Gallery.Meyerson Hall 210 South 34th St, University of Pennsylvania
Cost: no cost
Description:
This one-day workshop will address the problematic issues of masonry contaminated with soluble salts. The deterioration risks that these salts may cause and their damage mechanisms will be discussed. The importance of a correct diagnosis regarding the origin of the salts and the moisture that allows them to move within the masonry will be addressed. Possible solutions to the problem will be presented and a brief discussion on issues of consolidation or the application of water repellents.
Tentative Program
9:00 Introduction - Frank Matero
9: 15 - 10:15 Salts. What are they? Where do they come from? Basic properties.
10:15 - 10:45 Questions and answers / Coffee break
10:45 - 12:00 Salt migration in porous building materials. Hygroscopicity, Equilibrium Relative Humidity.
12 :00 - 2:00 Lunch and Discussion period (Lunch on your own)
2:00 - 3:15 Salt mixtures in porous building materials. Deterioration patterns. Hydrating and non-hydrating salts. Damage mechanisms.
3:15 - 3:45 Questions and answers / Coffee break
3:45 - 5:00 Problem identification. Available solutions: Desalination, different methods. Damp proof courses. Consolidation: possible approaches. Water repellents: when is their application appropriate? Paints and sacrificial renders.
Click here to download readings pertinent to the salt workshop.
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