PAVING: MARKET FOR STYRENE

STYROFOAM IS BEING SHIPPED TO ALASKA WHERE THE STATE'S DIVISION OF AVIATION WILL USE 1.4 MILLION BOARD FEET OF THE EXTRUDED PLASTIC FOAM IN THE CONSTRUCTION OF AN AIRCRAFT RUNWAY. DOW CHEMICAL COMPANY WHICH MAKES STYROFOAM BY A PATENTED PROCESS THAT INVOLVES EXTRUSION AND STRETCHING OF POLYSTYRNE, HAS BEEN LOOKING INTO THE USE OF THE PRODUCT AS AN INSULATING BED IN HIGHWAY BUILDING. RIGID BOARDS OF POLYSTYRENE FOAM ARE INCORPORATED INTO THE SUB-BASE PORTION OF THE PAVEMENT. THE FOAM, ACTING AS INSULATION, PROTECTS THE SURFACE FROM DIMENSIONAL CHANGES BROUGHT ABOUT BY THAWING OF ICE IN THE SUBGRADE. THE AIRPORT RUNWAY IN ALASKA MUST BE ABLE TO WITHSTAND THE WEIGHT OF LARGE COMMERCIAL JETS. TO AVOID FROST HUMPS, IT IS OFTEN NECESSARY TO REPLACE AS MUCH AS 6 TO 8 FEET OF FROST-SUSCEPTIBLE TOPSOIL. USING POLYSTYRENE, ONLY A DEPTH DOWN TO 18 INCHES NEED BE CLEARED. ALTHOUGH STYROFOAM DOES NOT COME CHEAP, ITS USE CAN MAKE A SIZABLE DIFFERENCE IN LABOR COSTS.

  • Supplemental Notes:
    • Vol 47, No 27, P 11
  • Publication Date: 1969-6-30

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Filing Info

  • Accession Number: 00215225
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 24 1994 12:00AM