2023
DOI: 10.3389/fmats.2023.1166065
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Strength variation characteristics of waste tailings cemented backfill materials with ultrafine particles

Abstract: This study investigates the use of self-produced solid waste in mines to backfill the goaf, with energy saving and emission reduction technology requirements. Using a relevant backfill mixing proportion test and mechanical property test, we analyzed the strength variation law of backfill materials under different concentrations and cementation powder addition. The results showed that, for backfill materials at 7 days with an ash-tailings ratio of 1:6, the strength of specimens with 52% and 49% prepared concent… Show more

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