期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 104, 期 -, 页码 263-275出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.12.051
关键词
Granites; Building stone; High temperature; Fire; XPS; Roughness; Colour
资金
- MICINN (Spain) [IB-09-080]
- University of Reims Champagne Ardenne (France) through the mobility project MEFETRO II
- Regional Government of Madrid's Geomateriales [2 S2013/MIT-2914]
Granite submitted to high temperatures may lead to the loss of aesthetic values even before structural damage is caused. Thirteen granitoids were exposed to target temperatures, 200 degrees C, 400 degrees C, 600 degrees C, 800 degrees C and 1000 degrees C. Damage characterisation, including roughness, colour and oxidation of chromogen elements by means of X-ray photoelectron spectroscopy (XPS) was assessed. Altered granitoids are more resistant to structural failure but redden rapidly. Black mica-rich granitoids turn into yellow with a maximum at 800 degrees C. Alkali feldspar-rich granitoids redden progressively due to iron oxidation. Roughness varies progressively in mica-rich granitoids, while in mica-poor granitoids, an increase in roughness precedes catastrophic failure. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据