THE USE OF CORAL ROCK AGGREGATES IN ROAD BASES, A LABORATORY INVESTIGATION USING FOAM BITUMEN

The road transport industry has been growing rapidly throughout Africa, and sources of high-grade roadbuilding materials are being exhausted in Tanzania. Soil improvement in roadbuilding is an appropriate solution for developing countries to deal with soaring costs and a scarcity of other materials. This paper summarizes preliminary and supplementary laboratory investigation carried out on the utilization of coral rock aggregates in foam bitumen stabilization in Tanzania. The use of coral stones in the base or surfacing could possibly provide a substantial savings in transport costs of aggregates, as normally used materials are not readily available in coastal regions of Africa. The laboratory tests indicate that bitumen stabilization is possible using coral stone aggregate mixed with some river sand.

• Corporate Authors:

  Tanzania Ministry of Works

  Holland House Avenue, P.O. Box 9423
  Dar es Salaam,   Tanzania 
• Authors:
  • IDABAGA, A S
  • OVERBY, C
• Conference:
  • First Road Transportation Technology Transfer Conference in Africa
  • Location: Arusha International Conference Centre, Tanzania
  • Date: 2001-5-23 to 2001-5-25
• Publication Date: 2001

Language

• English

Media Info

• Features: References; Tables;
• Pagination: p. 581-594
• Monograph Title: TECHNOLOGY TRANSFER IN ROAD TRANSPORTATION IN AFRICA: ARUSHA INTERNATIONAL CONFERENCE CENTRE, TANZANIA, MAY 23-25, 2001. CONFERENCE PROCEEDINGS

Subject/Index Terms

• TRT Terms: Aggregates, rock and stone; Base course (Pavements); Bituminous bases; Bituminous pavements; Conferences; Cost effectiveness; Developing countries; Highway transportation; Laboratory tests; Pavement components; Road construction; Road materials; Technology transfer
• Uncontrolled Terms: Coral rock aggregates; Foam bitumen
• Geographic Terms: Tanzania
• Subject Areas: Design; Education and Training; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00813616
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 30 2002 12:00AM