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BLISTERING
BLISTERING

Sample

Detail of an ashlar (carbonated sandstone) on the low part of a wall built during the enlargement of the building in the XVIII century. Seu Vella of Lleida (Old Cathedral).

Pathology Causes

Soluble salts from the ground and the repair mortars, and repeated drying-moisturising cycles.

Visual Image

Author: Manuel Iglesias
Description: Hemispherical elevations and some detachments on the surface of the stone. The alteration structure and the stone texture favours the moisture retention.

Image detail / macro

BLISTERING
Author: Manuel Iglesias
Magnification: Scale

Description: Detachment of one of the blisters. The internal structure of the stone presents granular disintegration and biological colonization (endolithic algae).


 


Associated Pathologies

Granular disintegration.

Soluble salt.

Biological colonization (endolithic algae).


Bibliography

ICOMOS-ICS (2008). Illustrated glossary on stone deterioration pattern.

http://international.icomos.org/publications/monuments_and_sites/15/pdf/Monuments_and_Sites_15_ISCS_Glossary_Stone.pdf 

 

ORDAZ, J., & ESBERT, R. (1988). Glosario de términos relacionados con el deterioro de las piedras de construcción. Materiales de Construcción, 38 (209): 39-45. doi: 10.3989/mc.1988.v38.i209.847


Author

Manuel Iglesias Campos. manuel.iglesias@cetec-patrimoni.com

Restorer


Institution or Company

Universitat de Barcelona


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