应用三向混合多元方差分析法检测建筑花岗岩中色度坐标（L、a、b*）的变化

IF 2 4区工程技术 Q3 CHEMISTRY, APPLIED

Coloration Technology Pub Date : 2024-03-21 DOI:10.1111/cote.12761

J. García‐Talegón, A. C. Iñigo, J. Paredes, R. A. Sepúlveda Correa, E. Azofra

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引用次数: 0

摘要

在本研究中，我们测定了西班牙阿维拉遗产城（世界花岗岩遗产城，1988 年）使用的三种建筑石材的色度坐标（L*、a*、b*）。这些石材来自采石场，经过了 90 个周期的三种加速老化过程：(a) 冻结/解冻和冷却/加热（T1）；(b) 盐结晶（T2）；(c) 冻结/解冻和冷却/加热 + 盐结晶（T3）。对获得的数据进行了三向混合 MANOVA（多变量方差分析）。与采石场样品的数据相比，在三种加速人工老化过程中观察到三个色度坐标（L*、a*、b*）的显著变化，倾向于暗色（↓L*）和红色（↑a*），而黄化（↑b*）的强度要小得多。

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Application of three‐way mixed multivariate analysis of variance method to detect changes in chromatic coordinates (L*, a*, b*) in building granites

In the present work we determined the chromatic coordinates (L*, a*, b*) for three building stones used in the heritage city of Ávila, Spain (World Granite Heritage City, 1988). The stones came from quarries and were subjected to 90 cycles of three types of accelerated ageing processes: (a) freezing/thawing together with cooling/heating (T1); (b) salt crystallisation (T2); and (c) freezing/thawing together with cooling/heating + salt crystallisation (T3). A three‐way mixed MANOVA (multivariate analysis of variance) was applied to the data obtained. Significant variations in the three chromatic coordinates (L*, a*, b*) were observed between the three types of accelerated artificial ageing processes compared to the data obtained from the quarry samples, with a tendency towards darkness (↓L*), redness (↑a*) and much less intensity towards yellowing (↑b*).

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来源期刊

Coloration Technology 工程技术-材料科学：纺织

CiteScore

3.60

自引率

11.10%

发文量

审稿时长

4 months

期刊介绍： The primary mission of Coloration Technology is to promote innovation and fundamental understanding in the science and technology of coloured materials by providing a medium for communication of peer-reviewed research papers of the highest quality. It is internationally recognised as a vehicle for the publication of theoretical and technological papers on the subjects allied to all aspects of coloration. Regular sections in the journal include reviews, original research and reports, feature articles, short communications and book reviews.