Paper presented at the 26th Annual Southern African Transport Conference 9 - 12 July 2007 "The challenges of implementing policy?", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT: The World Bank sponsored research to support preservation and maintenance efforts in
Mozambique. The object was to develop guidelines for a mechanistic-empirical design
method for cement stabilized sand bases (CTB) in Mozambique using Accelerated
Pavement Testing (APT) technology. APT encompassed scaled (one third) and full-scale
APT using mobile load simulator technology (MMLS3 and MLS10). The MLS10 expanded
the MMLS3 APT investigation to full-scale pavements, including wet trafficking cycles to emulate environmental effects. Operation of the MLS10 is similar to the MMLS3. It has four sets of dual wheels running in a closed loop with a maximum speed of up to 22 kph. Loads of 60kN and 70kN were used for trafficking. Fifteen MMLS3 tests and six full-scale test sections were tested. Comparative results between MMLS3 tests and full-scale MLS10 tests were found. Distress mechanisms were similar. Related design features and material strength parameters were used as supplementary and verification tools.
This paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: email@example.com URL: http://www.doctech.co.za