Abstract
The characterization and accurate determination of the chloride content in cement/concrete is very important for the assessment of the durability and safety of a concrete structure. The available analytical techniques are relatively expensive and time consuming. In this study, a laser-induced breakdown spectroscopy (LIBS) system was used for determination of elemental composition in three different types of cement samples. The plasma was generated by focusing a pulsed Nd: YAG laser at 1064nm on the cement samples. The concentrations of different elements of significance for structural stability in cement samples were determined. The evaluation of the potential and the capabilities of LIBS as a rapid tool for characterization of cement samples is discussed. The optimum LIBS setup and experimental conditions to detect and measure chloride in building materials are reported. The LIBS results were compared with the results obtained using a standard analytical technique such as inductively coupled plasma emission spectroscopy (ICP-ES). The limits of detection were determined, and calibration curves were measured. The results of this investigation indicate the reliability of LIBS to characterize different cement samples and to assess the chloride content in these cements.
| Original language | English |
|---|---|
| Pages (from-to) | 171-177 |
| Number of pages | 7 |
| Journal | Spectroscopy Letters |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| State | Published - May 2009 |
Bibliographical note
Funding Information:Support from the Physics Departments and King Fahd University of Petroleum & Minerals through project grant IN 080410 is gratefully acknowledged. One of the authors (T.H.) is thankful to the National University of Science and Technology and Government of Pakistan for finacial support for his Ph.D. work. He is also thankful to KFUPM for its hospitality and permission to work at its research facilties. The authors are thankful to Dr. Chandana Senaratne for ICP analysis.
Keywords
- Atomic emission plasma spectroscopy
- Chloride content
- Environmental impacts of trace metals
- Laser-induced breakdown spectroscopy
- Multielemental analysis
- Nondestructive testing
- On-line analysis
- Reinforced concrete
- Reinforced corrosion
- Structural stability
ASJC Scopus subject areas
- Analytical Chemistry
- Atomic and Molecular Physics, and Optics
- Spectroscopy