PLASTICS IN CONCRETE ROADS PREVENT FROST PENETRATION

BETONGVAEG KLARAR TJAELEN MED PLAST

Effects of a thin cellular polystyrene sheet beneath prefabricated concrete slabs have been studied on two experimental roads. Preliminary tests indicated that: slabs have to be 15 cm thick and strengthened at corners to resist cracking. Tongue-and-groove joints should form a 30 degree angle with the top surface of the slab. Some longitudinal locking between the slabs is necessary, especially at corners. A frost blanket of 4 cm styrofoam gives satisfactory protection against frost heave. Big slabs (150 x 150 cm) are preferable. Tests with manually manageable slabs (35 x 35 cm) did not give satisfactory results. A final test was performed based on the practical results gained from preliminary tests. The out-come of this test after 18 months is very favourable. /TRRL/

  • Corporate Authors:

    Byggfoerlaget

    Mariaskolgata 81, Box 17087
    Stockholm 10462 17,   Sweden 
  • Authors:
    • Persson, B
  • Publication Date: 1975

Language

  • Swedish

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 27-28
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00133720
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: SAE#751160
  • Contract Numbers: NO-1-NS-4-2302
  • Files: ITRD, TRIS
  • Created Date: Jun 23 1976 12:00AM