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

页码：369 / 376

页数：8

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