科研之友
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摘要
Raman spectroscopic structural analysis of concrete cementious matrix represents elegant method to determination of thermal history of highly exposed concrete. Experiments were carried out in furnace at 1200 degrees C. On the surface of heated concrete mechanical cracks and the mixture of dicalcium silicate and gehlenite were found, while inside the cracks the development of gehlenite, pseudowollastonite, pseudobrookite and various iron oxides and spinels was observed. The products of chemical reactions analyzed by Raman spectroscopy can be used as markers for the identification and understanding the structural changes during afire treatment.
- 出版日期2011
