FURNACE SLAG IN ROAD CONSTRUCTION

MASUGNSSLAGG VID VAEGBYGGEN

Large quantities of slag are produced in the manufacture of iron and steel. The results described refer to granulated slag which is a sand-like product with hydraulic properties. Its chemical composition is variable and it may be acid or basic. The mean particle size is 0.45-0.70 mm. Density is usually 1.0-1.2 kg/m3. Thermal conductivity at 2% moisture content is 0.295 w/mk and at 4.3%, 0.375 w/mk. On a forest road very susceptible to frost heave the wearing course was bulldozed off, slag placed in varying thicknesses and the wearing course replaced with an increased thickness. The road has performed satisfactorily and it seems that the insulating properties of the slag produced the expected results. The cost was about 35% of conventional pavement costs. The results of other tests where the existing wearing course and subsoil were remixed with the slag after placing were not acceptable, although stability was increased. /TRRL/

• Corporate Authors:

  Svenska Vagforeningen

  Fridhemsgatan 15
  11240 Stockholm K,   Sweden 
• Authors:
  • Norrman, G
• Publication Date: 1975

Language

• Swedish

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 2-23
• Serial:
  • Svenska Vagforeningens Tidskrift
  • Issue Number: 2
  • Publisher: Svenska Vagforeningen

Subject/Index Terms

• TRT Terms: Costs; Durability; Electric insulating materials; Frost heaving; Granular materials; Granulated slag; Insulating materials; Particles; Pavement performance; Road construction; Tests; Wearing course (Pavements)
• Old TRIS Terms: Frost heave
• Subject Areas: Finance; Geotechnology; Highways; I36: Aggregates;

Filing Info

• Accession Number: 00132233
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Jun 23 1976 12:00AM