Spent Coffee Grounds–Fly Ash Geopolymer Used as an Embankment Structural Fill Material
作者： Arul Arulrajah , Teck-Ang Kua , Chayakrit Phetchuay , Suksun Horpibulsuk , Farshid Mahghoolpilehrood
DOI: 10.1061/(ASCE)MT.1943-5533.0001496
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摘要: AbstractThe drinking of coffee forms a deep-rooted pastime in many communities worldwide. However, the culture generates vast quantities organic waste that ends up landfills. Current research trends are inclined towards recycling materials into alternative construction materials, hence need to sustainable uses for spent grounds. Coffee grounds (CG) highly with very high percentage biodegradable material. The objective this was study strength development CG when used as geopolymer stabilized embankment structural fill material aiming better understanding stabilization Fly ash (FA), being silica and alumina rich material, precursor. A liquid alkaline activator, L, sodium hydroxide-sodium silicate solution alkali activation FA CG-FA geopolymer. Factors found affect were: (1)...
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