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Engineering Science and Materials Commons

Open Access. Powered by Scholars. Published by Universities.®

2009

Adrian Bonilla-Petriciolet

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Full-Text Articles in Engineering Science and Materials

Surface Structure Changes In Cement Paste Exposed To 10.6 Um Laser Radiation, Juan José Soto-Bernal, María Del Rosario Moreno-Virgen, Claudio Frausto-Reyes, Adrian Bonilla-Petriciolet, José Vega-Duran, José Pineda-Piñon, José Ortíz-Lozano Dec 2008

Surface Structure Changes In Cement Paste Exposed To 10.6 Um Laser Radiation, Juan José Soto-Bernal, María Del Rosario Moreno-Virgen, Claudio Frausto-Reyes, Adrian Bonilla-Petriciolet, José Vega-Duran, José Pineda-Piñon, José Ortíz-Lozano

Adrian Bonilla-Petriciolet

We report the changes occurring in cement pastes irradiated by 10.6um CO2 laser at different stages of hydration. Raman spectroscopy, X-rays and Scanning Electronic Microscopy (SEM) techniques had been used to observe molecular structural changes. Intensity of cement paste Raman peaks after laser irradiation was monitored in samples irradiated 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 days after their preparation. Applied laser power changed Raman peaks intensity at 187.5cm-1, 563cm-1, 695cm-1, 750cm-1, 897cm-1, 1042cm-1 and 1159cm-1 that corresponds to compounds already presents in cement pastes. X ray diffraction and SEM images confirm the recrystalization ...