Piedra artificial porosa a partir de residuos de rocas ornamentales adaptable a obras de construcción y restauración patrimonial Durán Suárez, Jorge Alberto García Casco, Antonio Restauración de piedra Mortero poroso Permeabilidad al vapor de agua The technique of volumetric reintegration in severely deteriorated stone materials is of major importance for the restoration of architectural heritage. In using mortars for restoration it is important to control aspects such as the colour and textural similarity in relation to the adjacent stone, minor or equal strength and equal or greater porosity/permeability with respect to the original stone. This latter aspect is of particular complexity because the percentage distribution of pore-size ranges should not differ from that of the original stone material. The invention patent (with numbers of publication ES2187245 A1 and B1 16. 06. 2004), owned by the University of Granada, allows the production of excellent porous stones for decorative work in construction and mortar for restoration of stone materials with controlled porosity. Both materials consist of ornamental rock waste, so that a particular recycling purpose is given to this type of material which is difficult to reuse. In this paper we present the manufacturing process of these artificial stones and porous mortars with decorative and restorative purposes, from the controlled mixture of aggregates of ornamental rocks, organic and inorganic binders and generators of porosity. Once the curing and hardening has been done it is worth noting that one of the most important aspects of the product is the generation of a complex connected porous system as a result of the incorporation of crushed expanded polystyrene, which is activated after hardening through the application of organic solvents. 2019-03-04T14:52:30Z 2019-03-04T14:52:30Z 2017 info:eu-repo/semantics/article Durán Suárez, J.A. y García Casco, A., 2017. Piedra artificial porosa a partir de residuos de rocas ornamentales adaptable a obras de construcción y restauración patrimonial. Boletín Geológico y Minero, 128 (2): 437-450 ISSN: 0366-0176 DOI: 10.21701/bolgeomin.128.2.011 http://hdl.handle.net/10481/54889 DOI: 10.21701/bolgeomin.128.2.011 spa Revista trimestral de Ciencias de la Tierra;128-2 http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España Instituto Geológico y Minero de España. IGME