Characterisation of carbonated Portland cement paste with optical fibre excitation Raman spectroscopy

被引：21
|
作者：
Yue, Yanfei [1 ]
Wang, Jing Jing [2 ,3 ]
Basheer, P. A. Muhammed [4 ]
Boland, John J. [2 ,3 ]
Bai, Yun [1 ]
机构：
[1] UCL, Dept Civil Environm & Geomat Engn, Gower St,Chadwick Bldg, London WC1E 6BT, England
[2] Trinity Coll Dublin, CRANN, Dublin 2, Ireland
[3] Trinity Coll Dublin, AMBER Res Ctr, Dublin 2, Ireland
[4] Univ Leeds, Sch Civil Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 135卷
基金：
英国工程与自然科学研究理事会;
关键词：
Carbonation; Concrete; Durability; Excitation; Optical fibre; Raman spectroscopy; Structural health monitoring; MECHANISM; CONCRETE; SENSORS;
D O I：
10.1016/j.conbuildmat.2017.01.008
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study demonstrates the potential of developing a future Raman spectroscopy-based sensor system for monitoring carbonation of concrete structures. A tailored optical fibre Raman system was developed under the classical 45 geometry with a specific optical fibre assembly acting as the laser excitation-path. This system was then employed to characterise the calcium carbonate polymorphs, i.e. calcite and/or aragonite [upsilon(1) (CO32-) at 1086 cm(-1)], formed in the carbonated PC paste powder. The finding shows a good potential of optical fibre Raman spectroscopy for monitoring the health condition of concrete structures in the future. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：369 / 376
页数：8
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