TY  - CONF
A1  - Sankat, Nina
A1  - Wilsch, Gerd
A1  - Gottlieb, Cassian
A1  - Millar, Steven
T1  - Analysis of concrete structures using Laser-Induced Breakdown Spectroscopy
T2  - Proceedings of the 1st International Conference CoMS_2017
N2  - The Laser-Induced Breakdown Spectroscopy (LIBS) is a laser spectroscopic method which allows a time efficient, minor-destructive, chemical analysis of materials. In principle all elements on the periodic table can be simultaneously analysed by using LIBS, regardless of the state of aggregation. LIBS offers numerous applications in the field of civil engineering; most importantly the analysis of building materials. This work will focus on the evaluation of concrete structures and harmful substances which can penetrate the concrete. A variety of information can be collected through LIBS. Determining the concentration of harmful substances like chloride, sodium or sulphur, the examination of the carbonation depth and the distinction between varying layers of materials (e.g. aggregates, cement paste, metals, etc.) are possible applications. All this information can be provided through one LIBS measurement in the form of a high resolution 2D element map, with resolutions up to 0.1 mm x 0.1 mm. To scan a concrete surface only an optical access is needed. To create a depth profile of an intruding substance the extraction of a drill core is necessary. Onsite measurements via LIBS can be conducted by using a mobile version of the LIBS system. Through using calibration curves LIBS allows not only the qualitative but also quantitative analysis of element concentrations. All those prospects make LIBS a trendsetting method to secure the integrity of infrastructures in a sustainable manner. A variety of examples which show the performance and results of LIBS analysis will be presented.
T2  - CoMS 2017
CY  - Zadar, Croatia
DA  - 19.04.2017
KW  - Testing method
KW  - Concrete
KW  - LIBS
KW  - Harmful substances
PY  - 2017
SN  - 978-953-8168-04-8
VL  - 1
SP  - 334
EP  - 340
AN  - OPUS4-42630
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -