Physical Hazards of Tailings Dams

Rofer, C.K.; Kaasik, Tõnis; Waclawek, Zofia

doi:10.1126/science.288.5465.439b

Cited by 3 publications

(1 citation statement)

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“…Large amounts of tailings occupy large areas of land and cause environmental pollution. [1][2][3] However, some valuable components exist in graphite tailings, such as graphite, mica, quartz, etc., which can be used as building materials and rubber filler. [4][5][6][7][8][9] As one of the common materials, rubber would form defects because of its structural features.…”

Section: Introductionmentioning

confidence: 99%

Application of Composite Powders Recycled from Graphite Tailings in Styrene-Butadiene Rubber

Yun

Liao

et al. 2015

JOM

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With styrene-butadiene rubber (SBR) as matrix and composite powders recycled from graphite tailings as fillers, the influence of the particle size and content of the composite powders on the tensile strength and electrical conductivity of the composite powder-filled SBR were studied. The results showed that composite powder recycled from graphite tailings could reinforce SBR, whose tensile strength was significantly increased with reducing the particle size of the composite powder, but it had little effect on the conductivity of the system. With composite powders as fillers in conjunction with conductive carbon black, the tensile strength and electrical conductivity of the system were greatly improved. The maximum tensile strength of the SBR filled with composite powder and conductive carbon black increased by 47% compared to that of the single composite powder-filled SBR. When the filling content of conductive carbon black was 10 phr and that of composite powder was above 30 phr, the volume resistivity of SBR showed a sharp decline, reaching a minimum about 10 6 X cm at 40 phr. All the results indicated that composite powder recycled from graphite tailings can be applied effectively as filler in SBR. It has great economic and environmental benefits.

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