Mechanical and thermal properties of cemented tailings materials at early ages: Influence of initial temperature, curing stress and drainage conditions

摘要: Abstract The cementitious construction material, cemented paste backfill (CPB), is extensively used in underground mining operations worldwide. After the CPB placed field, evolution of its mechanical and thermal properties strongly affects stability heat transfer within it. An experimental setup designed to enable curing samples under different stresses, filling rates, initial temperatures drainage conditions as well monitoring changes capillary pressure, temperature, amount drained water electrical conductivity during curing. Furthermore, extensive testing carried investigate combined effects stress on mechanical, microstructural CPB. obtained results reveal that these are influenced by conditions, their interactions. These can significantly affect cement hydration, pressure development pore structure