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- W2549351657 abstract "Coal fly ash is an industrial by-product derived from coal combustion in thermal power plants. Productive reuse of these waste residuals is an essential component of the sustainable disposal and management of energy-related waste. The composition of coal-ash mixture (CAM) with different component percentages was modified with 2% of polyvinyl- alcohol (PVA), and examined in terms of pH, surface morphology, mineralogical-compound content, and engineering properties. PVA-modified CAM for all compositions exhibited high pH values within the range of 10.11-10.70. Scanning electron microscopy image exhibited agglomerated and strongly bonded PVA-modified CAM with FA (fly ash) 50-BA (bottom ash) 50 composition because of the effect of PVA that reacted with the coal ashes. Primary oxide content and the mineralogical contents of CAM did not show any significant correlation between unmodified and PVA-modified CAM samples. The insignificant shift in peak position of Si/Al- O stretches indicated electrostatic interaction between PVA and CAM based on Fourier transform infrared spectroscopy analysis. The FA content of PVA-modified CAM samples increased the gradient of stress-strain curves, which significantly improved the strength behavior of PVA-modified CAM for future applications in the geotechnical field. Copyright © 2015 Penerbit Akademia Baru - All rights reserved." @default.
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- W2549351657 date "2015-01-01" @default.
- W2549351657 modified "2023-09-24" @default.
- W2549351657 title "Polyvinyl-Alcohol-Modified Coal-Ash Mixtures for Productive Geotechnical Application" @default.
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