RT Journal Article T1 Determination of anisotropy to enhance the durability of natural stone A1 Fort, R A1 Varas Muriel, María Josefa A1 Alvarez de Buergo, M A1 Martin-Freire, D AB Anisotropy is a petrophysical property of natural stone and other construction materials thatdetermines their quality and resistance to decay due to a variety of agents, such as water. A studywas conducted on nine types of stone widely used in Spain’s built heritage, using six previouslydefined anisotropy indices. These indices can be used to determine the degree of anisotropy,which helps explain the differential decay observed in stone materials quarried in the same bedand used to build the same structure. The conclusion reached is that anisotropy should bedetermined in the natural stone used both to restore the architectural heritage and in newconstruction, since the appropriate choice of material quality ensures greater resistance to decayand, therefore, increased durability. Materials with the lowest possible anisotropy should beselected, as this property governs their hydraulic behaviour: the lower the anisotropy in amaterial, the better its behaviour in relation to water and the longer its durability. PB Oxford University Press SN 1742-2132 YR 2011 FD 2011-08-23 LK https://hdl.handle.net/20.500.14352/87929 UL https://hdl.handle.net/20.500.14352/87929 LA eng NO Received 30 November 2010 / Accepted for publication 8 July 2011 / Published 23 August 2011 /Online at stacks.iop.org/JGE/8/S132Copyright © 2011, Oxford University Press© 2011 NanjingGeophysical Research Institute NO Comunidad de Madrid (España) NO Ministerio de Educación y Ciencia (España) DS Docta Complutense RD 29 abr 2025