Evaluation of the chromatic effectiveness of color pigments in restoration materials (lime and Portland cement)

Autor:	A. Garca-Beltrn, M. P. Sez-Prez, J. Rodrguez-Gordillo, J. A. Durn-Surez
Rok vydání:	2000
Předmět:	Materials science General Chemical Engineering Mineralogy Human Factors and Ergonomics General Chemistry engineering.material Pulp and paper industry law.invention Pigment Portland cement law visual_art engineering visual_art.visual_art_medium Chromatic scale Mortar Lime Hue
Zdroj:	Color Research & Application. 25:286-291
ISSN:	1520-6378 0361-2317
Popis:	The present work investigates the way in which cementing materials such as lime or Portland cement alter the quality of pigments normally used in coloring mortars for use in restoring stone construction of historic or artistic value. The colorimetric measurements indicated that both conglomerants diminish the chromatic capacity of the most pigments studied, with noteworthy losses of saturation and, in some cases, substantial variations in hue. The most serious incidents involved lead—vermilion and yellow—in both cases the hue shifting towards the orange range. The compositional study of the material by X-ray diffraction (XRD) showed the decomposition of the compound chromophore, thereby accounting for its loss of color stability. © 2000 John Wiley & Sons, Inc. Col Res Appl, 25, 286–291, 2000
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::11b96abde14388e29a301e92c16fee09 https://doi.org/10.1002/1520-6378(200008)25:4<286::aid-col9>3.0.co Zobrazit plný text záznamu Plný text