RT Journal Article
T1 Chromatic parameters as performance indicators for stone cleaning techniques
A1 Fort, R.A.
A1 Mingarro Martín, Francisco
A1 López De Azcona, M.C.
A1 Rodriguez Blanco, J.
AB To determine the degree of soiling of urban buildings subject to environmental pollution and, at a later stage, to assess the effectiveness of cleaning techniques on the types of stone used in the construction of these buildings, it is very useful to define the chromatic parameters (L*,a*, b*,C*,WI, and YI) before and after treatment. A comparative study of these parameters and the original color of the stone is carried out. The best cleaning performance is achieved using a hot water jet at a temperature of 90°C and a pressure of 120 bars. In areas with significant black encrusted gypsum and calcite layers, these cannot be removed completely with water. Thus, chemicals must be applied, the most appropriate being sodium hydroxide-based products. Using these cleaning techniques, it is possible to obtain chromatic parameters that come close to those of the stone in its original state, allowing for an increase in yellow hues resulting from the preservation of the patina inherent to the natural aging process that stone surfaces undergo.
PB Wiley
SN 0361-2317
YR 2000
FD 2000-10-13
LK https://hdl.handle.net/20.500.14352/103086
UL https://hdl.handle.net/20.500.14352/103086
LA eng
NO Fort, R., Mingarro, F., López de Azcona, M.C. and Rodriguez Blanco, J. (2000), Chromatic parameters as performance indicators for stone cleaning techniques. Color Res. Appl., 25: 442-446. https://doi.org/10.1002/1520-6378(200012)25:6<442::AID-COL9>3.0.CO;2-O
NO Junta de Castilla y León
DS Docta Complutense
RD 9 abr 2025