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Abstract <p>In this paper, the structure formation processes in Portland cement backfill materials containing solid technogenic (anhydrite gypsum and halite) mining waste as aggregates and a mixing fluid, bischofite lye (liquid mining waste), have been studied. The backfills are intended for filling mined-out spaces of potassium–magnesium salt deposits. The effect of the content and mass ratio of cement, hardening retarders, and mining waste on the technological properties of the backfill materials has been studied. After optimization of the compositions, backfills that are characterized by high viability, cohesion, structural homogeneity, controlled density, and strength properties have been obtained.</p>

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Mineralized Portland Cement Backfills Based on Salt Mining Products

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • N. Kh. Belous,
  • S. P. Rodtsevich,
  • V. V. Shevchuk,
  • O. V. Luksha,
  • N. P. Krutko,
  • A. S. Stromsky

摘要

Abstract

In this paper, the structure formation processes in Portland cement backfill materials containing solid technogenic (anhydrite gypsum and halite) mining waste as aggregates and a mixing fluid, bischofite lye (liquid mining waste), have been studied. The backfills are intended for filling mined-out spaces of potassium–magnesium salt deposits. The effect of the content and mass ratio of cement, hardening retarders, and mining waste on the technological properties of the backfill materials has been studied. After optimization of the compositions, backfills that are characterized by high viability, cohesion, structural homogeneity, controlled density, and strength properties have been obtained.