Cement Kiln Dust Stabilization of Reclaimed Asphalt Pavement

A laboratory evaluation of the characteristics of cement kiln dust (CKD) stabilized reclaimed asphalt pavement (RAP) subjected to British Standard light [BSL (standard Proctor)] compactive effort to determine the compaction characteristics and California bearing ratio (CBR) values was carried out. Test results show that the properties of RAP improved when treated with CKD. The particle size grading improved from 99% coarse aggregates and 1% fines for 100% RAP to 92 - 99% coarse aggregate with 1 - 8% fines for the various CKD-RAP mix proportions. The CBR values also improved from 9% for the 100% RAP to 15% (24 hours soaking) and 13% (unsoaked condition) for 40%RAP + 60%CKD mix proportion. Generally, soaked samples recorded higher CBR values than unsoaked samples. The CKD stabilized RAP proportion of 40%RAP + 60%CKD can be used as subgrade materials in road construction.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 3854-3862
  • Monograph Title: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Subject/Index Terms

Filing Info

  • Accession Number: 01530365
  • Record Type: Publication
  • ISBN: 9780784412121
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 2:08PM