RT Journal Article
T1 Caracterización y degradación de los materiales graníticos dela Colegiata de San Isidro, Madrid, España
A1 Álvarez de Buergo, Mónica
A1 Fort González, Rafael
A1 Rodríguez Blanco, Juan Diego
A1 López de Azcona, María Concepción
A1 Mingarro Martín, Francisco
AB Original granitoids from the façade of the Colegiata de San Isidro are medium-grained-biotitic adamellites, from quarries of the Valdemorillo area (Madrid). The petrophysical properties of the materials allow to establish a clear difference between the two original granites: the most abundant one (A), with a lower porosity, lower water sorption capacity, a lower water vapour permeability coefficient, a higher ultrasonic waves transmission velocity, and a higher strength, respect to the least abundant granite (B). So it can be said the former is more resistant and of better quality than B-granite, or in other words, is a less-alterable granite than B-granite. In relation to the granites alteration trend, data make possible to establish that A-granite suffers less alteration than B-granite, because in the latter, values of the properties determined in internal and external sections, vary much more than for the A-granite. A brief reference to the conservation state of the main façade and to the monitoring of the atmospheric pollutants registered by two stations close to the building, with the aim of determining its inluence on the material degradation, which mainly consists of soiling and blackenning.
PB Sociedad Geológica de España.
SN 1576-5172
YR 2000
FD 2000
LK https://hdl.handle.net/20.500.14352/57971
UL https://hdl.handle.net/20.500.14352/57971
LA spa
NO Comunidad de Madrid.
DS Docta Complutense
RD 1 sept 2024