SYMPOSIA PAPER Published: 01 January 1988
STP27269S

Diagnosis of Terra-Cotta Glaze Spalling

Source

One of the most common types of deterioration observed in terra-cotta buildings is glaze spalling. This separation of the hard, fairly impermeable glaze from the underlying clay bisque exposes the clay to water infiltration and accelerated deterioration. The mechanisms responsible for glaze spalling are fabrication defects, incorrect installation, environmental exposure, and improper maintenance. The investigation of glaze spalling consists of a field survey, field tests, and laboratory analysis. Once a diagnosis of the causes is made, appropriate preventive measures can be implemented.

Author Information

Thomasen, SE
Wiss, Janney, Elstner Associates, Inc., Emeryville, CA
Searls, CL
Wiss, Janney, Elstner Associates, Inc., Emeryville, CA
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Details
Developed by Committee: C12
Pages: 227–236
DOI: 10.1520/STP27269S
ISBN-EB: 978-0-8031-5060-7
ISBN-13: 978-0-8031-1168-4