DBPapers
DOI: 10.5593/SGEM2014/B12/S2.049

FINISHING SURFACE INFLUENCE ON STONE THERMAL BEHAVIOUR

M. M. Costa e Silva, P. F.Neves, G.Paneiro
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 377-384 pp

ABSTRACT
Stone has been fundamental in construction since the beginning of civilization. Proper selection of rock materials contributes positively to environment by saving energy. Actual legislation is mandatory in what concerns Buildings Energetic Certification. Therefore, it seems relevant to discuss some thermal parameters as technological parameters. The purpose of this work is the evaluation of the rock finishing textures influence on heat transfer by temperature rate changes analysis along time. A comparative thermal behaviour analysis with different surface finishing was made. For this purpose common ornamental Portuguese stones used in building were tested for different types of finishing. Tests description is made, results are analysed, and some conclusions are presented.

Keywords: Rock triaxial test, Porosity, Permeability, P-wave velocity