South Eastern Coalfields Limited (SECL)

  • SECL is set to be the 1st coal PSU in India to adopt innovative paste fill technology for underground mining.
  • Paste filling is a modern underground mining method that eliminates the need to acquire surface land. After coal extraction, the mined-out voids are filled with a specially prepared paste made from fly ash, crushed overburden from opencast mines, cement, water, and binding chemicals. This process prevents land subsidence and ensures the structural stability of the mine.
  • Importantly, the paste utilizes industrial waste materials, making the process environmentally sustainable and promoting waste ....
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