EXPERIENCES WITH THE USE OF WEDGES AGAINST FROST HEAVING

OBSERVATIONS WERE MADE OF THE FROST HEAVINGS IN ROAD CONSTRUCTION USING WEDGES FOR PREVENTION OF THE INFLUENCES OF THE FROST. OBSERVATIONS WERE MADE ON THE FROST- SUSCEPTIBLE GROUND, THE ROAD-PART SITUATED ON BOTH SIDES ON CULVERTS. THE FOLLOWING CASES WERE OBSERVED: (1) CULVERTS WITHOUT ANY TRANSITION WEDGES, (2) CULVERTS WITH SHORT IRREGULAR WEDGES, FILLED WITH SAND, (3) CULVERTS WITH LONG REGULAR SAND WEDGES, AND (4) WEDGES FILLED WITH INSULATING LIGHT WEIGHT AGGREGATE. OBSERVATIONS WERE MADE ON THE CHANGES IN THE ROADS CONNECTIONS OF THE GRADES IN THE WINTER SEASON AS IN SUMMERTIME. SOME SPECIAL CASES FOR THE DEPTH OF THE FREEZING AND ALSO THE TEMPERATURE IN THE STRUCTURES OF THE ROAD HAS BEEN MET WHEN SAND AND LIGHTWEIGHT AGGREGATE HAVE BEEN USED AS INSULATING MATERIAL IN THE WEDGES. THE INVESTIGATION RESULTED IN A PROPOSAL FOR THE SHAPE AND THE DIMENSIONS OF THE FROST-DISPLACEMENT WEDGE OF THE CULVERT. IT IS CONCLUDED THAT BY USING THE FROST WEDGES, THE FROST HEAVES OF THE ROAD SURFACE CAN BE EVENED OUT ALONG A STRETCH OF ROAD TO SUCH EXTENT THAT THE ELEVATION OF THE ROAD SURFACE IS MADE TO CHANGE SO SMOOTHLY THAT THE PAVEMENT WILL NOT FISSURE AS A RESULT OF FROSTING.

• Supplemental Notes:
  • Preprint, pP 306-323, 10 FIG, 4 TAB, 3 REF
• Authors:
  • Taivainen, O A
• Conference:
  • Intl Conf Struct Design Asphalt Pvmts
• Publication Date: 1967-8

Subject/Index Terms

• TRT Terms: Culverts; Environmental impacts; Frost heaving; Frost protection; Frost susceptible soil; Highway design; Pavement performance; Pavements; Structural design; Wedges
• Old TRIS Terms: Frost heave; Highway pavement
• Subject Areas: Bridges and other structures; Design; Environment; Highways; Pavements;

Filing Info

• Accession Number: 00206713
• Record Type: Publication
• Files: TRIS
• Created Date: May 13 1994 12:00AM