Review of Practices Using Marginal and Secondary Materials in Rural and Industrial Areas - Technical Report

The use of existing materials in road embankments is an essential issue within the Sustainable Development policies, which have been promoted worldwide for many years. In the World Road Association (PIARC) this subject has been investigated by different Technical Committees over the last 20 years. The optimization of earthwork projects is an obvious issue related to this concern, with important benefits (no spoil disposal or supply of natural noble materials can lead to a strong pollution reduction). [...]

Contribution to the improvement of the general guidelines for the development, construction / reconstruction, rehabilitation and maintenance of the Trans-African Highway network - (Annex II) (only in French) - Technical Report

This report is a review, for the purpose of improvement, of Annex II entitled "General Guidelines for the Planning, Construction/Reconstruction, Rehabilitation and Maintenance of the Transfrician Highway Network" of the African Union Intergovernmental Agreement for the Harmonization of Norms and Standards on the Trans-African Highway Network. To this end, the following specific objectives have been set: Examine the conformity of the standards contained in the document in comparison with the [...]

Review of the Practical Guide to Pavement Design for Tropical Countries (in French only) - Technical Report

The Practical Guide to Pavement Design for Tropical Countries, published in 1984 by CEBTP, is still a document to which reference is often made in French-speaking African countries. Over the past thirty-five years, major developments have taken place in the pavement sector, particularly in the formulation of pavement materials and the design of pavement layers, while African countries are experiencing strong growth in heavy goods vehicle traffic, requiring the widespread use of pavements on the [...]

Innovative approaches towards the use of locally available natural marginal materials

The utilization of materials locally available on the site of a road project is a major concern in the context of sustainable development and perfectly meets the socioeconomic and environmental criteria involved in it. The report is based on the answers received from twenty-two countries. Five different families of locally available marginal natural materials have been identified. Information on placing and processing is given for each country. A comparison is also made of classifications and [...]