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Colmenar Limestone, Madrid, Spain: considerations for its nomination as a Global Heritage Stone Resource due to its long term durability

AutorFort González, Rafael ; Varas, María José ; Álvarez de Buergo, Mónica ; Pérez-Monserrat, Elena M.
Palabras claveAgeing tests
Building stone
Decay
Stone weathering
Limestone
Durability
Fecha de publicación3-sep-2014
EditorGeological Society of London
CitaciónGeological Society, London, Special Publications, 407: 121-135 (2015)
ResumenColmenar Limestone is one of the traditional materials most commonly used in monuments in Madrid, Spain. The petrophysical properties of this stone determine its high resistance to decay. Its low water absorption and pore size distribution favour good hydraulic behaviour, which is likewise furthered by its high ultrasound velocity and low anisotropy. The durability findings pursuant to the 280 freeze-thaw, 42 thermal shock, 30 salt crystallisation and 120 salt mist cycles conducted confirmed the stone’s resistance to decay in these simulated aggressive environments. The mass loss recorded in the samples and the variation in petrophysical parameters were generally very low after all except the salt crystallisation trials, which induced loss of cohesion on the stone surface, increased roughness and the formation of concentric microcracks, sub-parallel to the more exposed surface, that also affected the arris and vertices of the specimens tested.
DescripciónPart of the special publication: SP-407 (2015). Global Heritage Stone: Towards International Recognition of Building and Ornamental Stones (Edited by D. Pereira, B. R. Marker, S. Kramar, B. J. Cooper and B. E. Schouenborg). 978-1-86239-685-2
Versión del editorhttp://dx.doi.org/10.1144/SP407.8
URIhttp://hdl.handle.net/10261/121530
DOI10.1144/SP407.8
ISSN0305-8719
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