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

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Fort, Rafael and Varas-Muriel, María José and Álvarez de Buergo, Mónica and Pérez-Monserrat, Elena Mercedes (2015) Colmenar Limestone, Madrid, Spain: considerations for its nomination as a Global Heritage Stone Resource due to its long term durability. Geological Society, London, special publications, 407 . pp. 121-135. ISSN 2041-4927

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Abstract

Colmenar 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 crystallization 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 crystallization 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.


Item Type:Article
Uncontrolled Keywords:Colmenar limestone
Subjects:Sciences > Geology > Petrology
ID Code:50511
Deposited On:18 Dec 2018 13:29
Last Modified:18 Dec 2018 13:29

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