TREADS IN THE UTILIZATION OF WASTES FOR HIGHWAY CONSTRUCTION

A study involving the characterization and potential utilization of (municipal, mining and metallurgical) wastes and secondary products is reported which placed emphasis on information retrieval (to determine previous and current effort in this area), obtaining information on particular wastes that show promise, laboratory characterization and usage studies, and design implementation and field studies. Emphasis is placed on metallurgical wastes and examples are given of application of this approach to secondary products and wastes such as slags and taconite tailings. A computerized waste utilization data bank was developed which has been made (to increase its efficiency) a subset of a general Civil Engineering Reference Program (CERPU). Trends in blast furnance and steel slag usage are tabulated. Steel slag has a high unit weight (120 lb/cu ft average) and a potential expansive behavior. Quick test procedures to measure the expansion potential have been developed and are being used in the investigation of the effects of steel slag types, age, acid treatment, gradation changes etc. on expansion. Nickel slag has been successfully used as subbase and base course material in highway construction and has established itself as the best ballast used on the CN system. An extensive study was made of steel slag bituminous mixes and some of the more important characteristics are tabulated. Comments are made on their skid resistance, dynamic moduli, and high compacted weight. Steel slag precoated chippings and slurry seals are also considered. Current research is reported on fine-grained self-cementing pelletized blast furnance slag for use in stablized base construction. The applications in highway construction of spent pickle liquors and sulphite liquors are discussed. The utilization of tailings in construction is discussed, and research on the use of taconite tailings in bituminous concrete is outlined.

  • Corporate Authors:

    McMaster University

    Department of Civil Engineering, Highway Materials Laboratory
    Hamilton, Ontario  Canada  L8S 4L7
  • Authors:
    • Emergy, J J
    • Kim, C S
  • Publication Date: 0

Media Info

  • Features: References; Tables;
  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00097162
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM