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oa Sonochemical nano fabrication as a new method for activation of Ground Granulated Blast Furnace Slag (GGBFS)
- Source: QScience Connect, Volume 2013, Issue 1, Jun 2013, 29
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- 06 August 2013
- 13 August 2013
- 01 November 2013
Abstract
Ground Granulated Blast Furnace Slag (GGBFS) is a byproduct in the manufacture of pig iron, which contains almost the same chemical compositions as cement. As a new method for activation of GGBFS, a simple sonochemical route was developed to synthesize nanoparticles of GGBFS. Chemical composition of the GGBFS sample was characterized using X-ray fluorescence (XRF). Crystallinity, morphology and reactivity of the GGBFS samples were compared before and after the sonochemical process, by using Powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Thermal Gravimetry and Differential Thermal Analysis (TG/DTA). Based on the DTG results, Nano GGBFS showed a superior reactivity compared with the bulk form. Therefore, sonochemistry is an appropriate method for the activation of cement additives.