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• US Fed statement boosts copper prices »
  March 18, 2010
• African Barrick Gold halts production at Tanzanian mine after accident »
  March 18, 2010
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  March 18, 2010
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Mining Field: Backfill
Area: General (Rule #416)

It is common to measure the strength of cemented backfill as if it were concrete (i.e. 28 days), probably because this time coincides with the planned stope turn-around cycle. Here it should be noted that while concrete obtains over 80% of its long- term strength at 28 days, cemented fill might only obtain 50%. In other words, a structural fill may have almost twice the strength at 90 days as it had at 28 days.

• Asia Mining Congress 2010 »
  Singapore | March 22, 2010 - March 26, 2010
• Mines and Money Hong Kong 2010 »
  China | March 29, 2010 - March 31, 2010
• The World Moneyshow »
  Canada | April 6, 2010 - April 8, 2010
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  Canada | April 10, 2010 - April 11, 2010
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  Canada | May 7, 2010 - May 7, 2010
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• IX International Gold Simposium »
  Peru | May 18, 2010 - May 20, 2010
• Second International Conference on Coal Fire Research (ICCFR2) »
  Germany | May 19, 2010 - May 21, 2010
• 17th Coal Congress of Turkey and Mining Exhibition »
  Turkey | June 2, 2010 - June 4, 2010
• III International Technological Exhibition for the Mining Industry - Argentina " San Juan Key Factor for Argentine Mining Development" »
  Argentina | June 2, 2010 - June 4, 2010
• 2010 World Resource Investment Conference »
  Canada | June 6, 2010 - June 7, 2010
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  Kazakhstan | June 7, 2010 - June 10, 2010
• 13th U.S./North American Mine Ventilation Symposium »
  Canada | June 13, 2010 - June 18, 2010
• Alberta's Oil Sands »
  Canada | June 16, 2010 - June 16, 2010
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• Kumba unearths unknown "third party" »
  March 18, 2010
• Outotec to deliver a new copper smelter for Tongling in China »
  March 18, 2010
• Rio four to stand trial next week »
  March 18, 2010
• Nickel production at Kwinana refinery interrupted - BHP »
  March 18, 2010
• Avocet shares fall on pretax loss for nine months to December »
  March 18, 2010
• Gold slips on dollar strength »
  March 18, 2010
• Australia wants full access to Rio trial »
  March 18, 2010
• Hochschild Mining sues Minera Andes over $65mn San Jose silver mine loan »
  March 18, 2010
• Indian gold demand fluctuates on price as wedding season approaches »
  March 18, 2010
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• Local shares in flat trading »
  March 18, 2010
• Stern Hu in court next week »
  March 18, 2010
• CORRECTED - CORRECTED-Macarthur Coal reaches short-term settlements »
  March 18, 2010
• BHP Expects to Seal Iron Ore JV with Rio in 2010 »
  March 18, 2010
• OPEC output unchanged »
  March 18, 2010
• NCIG accepts first trainload of Hunter Valley export coal »
  March 18, 2010
• Gold hit hard on poor PPI numbers »
  March 18, 2010
• QRC wants consultation before any royalty rises in Queenland »
  March 18, 2010
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