Application of Raman microscopy to evaluation of aging effect on micromechanics of concrete reinforced with PET strips


Grant No.:


Grant Agency:

Czech Science Foundation (GAČR)

Resolved in:

2005 - 2007

Principal investigator:

Vladimír Machovič, CSc., The Institute of Chemical Technology, Prague (ICT)


František Kolář, Department of Composites and Carbon Materials, IRSM AS CR, v.v.i.
Pavel Kuklík, Czech Technical University in Prague Faculty of Civil Engineering


Raman microscopy is a powerful tool for in situ non destructive investigations of various micromechanical phenomena in composite materials. In proposed project Raman spectroscopy will be used to assess changes in the stress transfer between a reinforcing poly(ethyleneterephthale) strips and a cement matrix as a function of the time, temperature and environment. The spectroscopic approach will supported by additional experimental techniques and micromechanical modeling. Correlation between the physical and chemical properties of system PET/cement matrix and interphase between strip and matrix during hardening will be find. Based on the spectroscopic and stress-strain data obtained from the model strip/cement matrix samples, a rapid procedure for characterization of composite micromechanic developed and optimized using Raman microspectroscopic method. The method will be applicable not only for analysis of the PET strip/cement matrix, but also for other polymer/cement systems.

ISVAV: (What is it?)

Project in The Research and Development and Innovation System of the Czech Republic (in Czech only)