Experimental Investigation on Hydrophobic Alteration of Mining Solid Waste Backfill Material
Zhiyang Zhao,
Liqiang Ma,
Ichhuy Ngo
et al.
Abstract:To address the issues of corrosion weakening of solid-waste-based backfill material caused by mine water, a novel hydrophobic solid waste backfill (HSBF) material was developed using polydimethylsiloxane (PDMS) and a silane coupling agent (SCA) as hydrophobic modification additives, and NaOH (SH) and sodium silicate (SS) as alkali activators. Fly ash and slag were chosen as the primary raw solid waste materials. The rheological properties of the hydrophobic-treated backfill slurries were measured, and the resu… Show more
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