RESINS IN THE MINES

PLASTIC REINFORCED WITH FIBERGLASS HAS LATELY COME INTO USE IN THE SOVIET MINING INDUSTRY AS A SUBSTITUTE FOR TIMBER SUPPORTS IN MINES. HIGH-STRENGTH BEAMS ARE MADE OF GLASS AND SYNTHETIC POLYESTER RESINS, A COMBINATION THAT IS BOTH NON- CORRODING AND FIRE-PROOF. POLYESTER RESIN IS ALSO APPLIED AS A PROTECTIVE COATING TO REINFORCED CONCRETE STRUCTURES SINCE CONCRETE IS SUBJECT TO RAPID DETERIORATION FROM WATERS CONTAINING ACIDS AND SALTS. PIPES MADE OF FIBERGLASS AND POLYESTER RESIN ARE REPLACING METAL PIPES IN THE SINKING OF MINE SHAFTS BY THE FREEZING METHOD, WHICH IS USED WHEN THE SOIL IS WET AND SANDY. IN THIS PROCESS, A LOW-TEMPERATURE SALT SOLUTION, OR BRINE, IS PUMPED THROUGH POLYESTER PIPES INTO THE WALLS OF THE SHAFT, FREEZING THE SAND AND WATER INTO A SOLID ICY ARMOR TWO TO FOUR METERS THICK. PUMPING SYNTHETIC RESINS INTO SAND HAS BROUGHT WATERY SANDS UNDER CONTROL. EPOXY RESIN MAKES IT POSSIBLE TO GLUE TOGETHER UNDERGROUND REINFORCED CONCRETE STRUCTURES.

  • Supplemental Notes:
    • Vol 92, No 9, P 213
  • Authors:
    • Gruzinov, E S
  • Publication Date: 1967-8-26

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  • Accession Number: 00214745
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 16 1994 12:00AM