General Cleaning Materials and Methods for Common Stone Surfaces
This three day workshop will include both theory (mornings) and practical (afternoon) sessions each day.
The basic chemistry of common silicate and carbonate based stone materials will be reviewed. Surface adsorption phenomena on stone materials including zero-point charge, Ion exchange, octanol-water coefficient (pKow), and metal salt formation will be discussed in terms of general aqueous cleaning strategies for soil removal. Advective properties of porous materials will be discussed, along with strategies to overcome these forces.
The emphasis in this course will be to help participants evaluate current commercial cleaning strategies critically, as well as to help them develop their own wide scale cleaning strategies that are both reasonable, economical, and that can replace current surfactant based preparations with ‘greener’ more easily reversible preparations. Biowin 1 software will be used to evaluate each material discussed for its biodegradability potential.
The practical sessions will include hands-on work by the participants on test materials provided by the instructor.
Participants will also be encouraged to bring either sample materials or case histories to discuss during the theory sessions.
Instructor: Richard Wolbers, Professor University of Delaware, Newark DE (USA)
Period: 27, 28 and 29 june 2018
Place: INP, Aubervilliers
Price: 795 euros
Registration form to be sent to Céline Jabin (firstname.lastname@example.org) - Institut national du patrimoine département des restaurateurs – 124, rue Henri Barbusse 93300 Aubervilliers. Information on 01 49 46 57 16/92