A NEW SOLUTION FOR SUB-BALLAST LAYERS ON RAILWAY LINES: AN ASPHALT CONGLOMERATE. CALCULATION OF DIMENSIONS USING DYNAMICS

IL CONGLOMERATO BITUMINOSO COME NUOVA SOLUZIONE PER LO STRATO DI SOTTOBALLAST NELLE LINEE FERROVIARIE. DIMENSIONAMENTO CON METODO DINAMICO

An asphalt conglomerate was used as an alternative to a concrete mixture for the sub-ballast layer on the first and fourth sections of the new Rome-Florence Direttissima because it has a number of advantages as regards fatigue strength, self-repair properties, waterproofing and resistance to frost. A special calculating process was used to determine the thickness of the layer; it takes account of the dynamic modules of the materials used and can be checked by tests on site.

• Corporate Authors:

  Collegio Ingegneri Ferroviari Italiani

  Piazza Croce Rossa
  Rome,   Italy 
• Authors:
  • Celard, B
• Publication Date: 1976-4

Language

• Italian

Media Info

• Features: Photos; References;
• Pagination: p. 3-11
• Serial:
  • INGEGNERIA FERROVIARIA
  • Volume: 31
  • Issue Number: 4

Subject/Index Terms

• TRT Terms: Asphalt ballast; Ballast (Railroads); Frost heaving; Soil stabilization; Soil tests; Stabilized materials; Subballast; Subgrade (Pavements); Waterproofing
• Old TRIS Terms: Ballast stabilization
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00152401
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: May 11 1977 12:00AM