Otta Seal is a surfacing that was originally developed in Norway and is now being used in many other countries. Otta seals can be used in the construction of low volume roads (up to 300vpd) to roads with medium traffic (300-1000vpd). Their use in Mozambique is discussed.
Mukura, K. Design and construction of Otta seals in Mozambique. Presented at AFCAP Workshop on Rural Accessibility and Mobility. 5th Africa Transportation Technology Transfer (T2) Conference. Arusha, Tanzania, 21-25 November 2011. (2011) 23 pp.