The main goal of this project is to reduce the cost of low volume road construction in the SADC region by utilising naturally occurring sands to the maximum extent possible as a road construction material. The scope of the guideline will include the use of sand in road construction for both unpaved and paved roads. The project is being carried out in five stages commencing with Stage 1 – Technical Review. The objective of this stage is to undertake a technical review of the use of sands in road construction in the SADC region and internationally based on a literature survey of existing documentation including previous studies, guidelines, technical papers, standards and specifications, all as input to this Inception Report and, ultimately, to the final guideline.
The outputs of the Inception Report include:
i. an indication of appropriate designs for the use of sand in low volume road construction based on the technical review of existing best practice within the region;
ii. a sampling and testing programme in Mozambique, Namibia and South Africa to evaluate the suitability of the Botswana sand classification system;
iii. a structure of the draft guideline.
Anon. Research Consultancy for the Development of Guidelines for the Use of Sands in Road Construction in the SADC Region. Inception Report. (2012) 73 pp.