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

TY - JOUR

T1 - Characterisation of carbonated Portland cement paste with optical fibre excitation Raman spectroscopy

AU - Yue, Yanfei

AU - Wang, Jing Jing

AU - Basheer, P.A. Muhammed

AU - Boland, John J.

AU - Bai, Yun

N1 - © 2017 Elsevier Ltd. All rights reserved.

PY - 2017/3/15

Y1 - 2017/3/15

N2 - 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 [ʋ1 (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.

AB - 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 [ʋ1 (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.

KW - Carbonation

KW - Concrete

KW - Durability

KW - Excitation

KW - Optical fibre

KW - Raman spectroscopy

U2 - 10.1016/j.conbuildmat.2017.01.008

DO - 10.1016/j.conbuildmat.2017.01.008

M3 - Article

SN - 0950-0618

VL - 135

SP - 369

EP - 376

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -