MECHANICAL PROPERTIES OF EXPANDED POLYSTYRENE FOR USE IN THE CONSTRUCTION OF ROAD EMBANKMENTS

PROPRIETES MECANIQUES DU POLYSTYRENE EXPANSE POUR SES APPLICATIONS EN REMBLAI ROUTIER

Expanded polystyrene has been used in France for the construction of very low density road embankments for 10 years based on Norwegian practices. Between 1982 and 1989 studies were carried out on the relationship between the density of the material and its mechanical behaviour (initial modulus of elasticity, elastic limit and rate of creep) with a view to determining the values to be taken into account in the design of structures. Tests were carried out on triaxial cells 15.2 cm high by 7.6 cm diameter at densities of 9 kg/cubic m to 29 kg/cubic m, rates of axial deformation of 0.1% to 75% per hour under simple compression and at temperatures from 10 degrees C to 30 degrees C. The results are presented graphically and discussed. It is suggested that rate of creep is the most important parameter and that further studies need to be carried out to determine long term performance. It is concluded however that sufficient information is available for the design of lightweight embankments. This paper was originally published in French in Bulletin de Liaison des Laboratoire des Ponts et Chaussees (1989-11/12), No 164, p25-31 and for the French abstract see IRRD 123993.

  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • MAGNAN, J-P
    • Serratrice, J-F
  • Publication Date: 1990-4

Language

  • English

Media Info

  • Pagination: 15 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00606525
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: T 3625
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM