Abstract
Coarse aggregates for use in road construction in Dar es Salaam and Coast regions are becoming increasingly scarce and expensive while sand, which is cheaper, is readily available in the two regions. This research aimed at evaluating the possibility of using quarry sands in the two regions as a major constituent material in bituminous road pavement layers. First, the use of sand in sand-bitumen bases for low and medium trafficked roads was studied. The study then continued with the preliminary evaluation of the possible use of the sands in hot rolled asphalt mixes. Results show that Mbagala sand can be used in sand-bitumen bases for low trafficked roads resulting in more than 66% savings in material costs with the potential for use in more trafficked roads. Kisurwe, Mbagala and Kigamboni sands were all found to be suitable for use in hot rolled asphalt mixes with potential savings in material and construction costs.
Recommended Citation
A, M. (2002). Potential for Use of Sand in Road Construction in Dar es Salaam and Coast Regions. Tanzania Journal of Engineering and Technology (TJET), 25(2), 31-39. https://doi.org/https://doi.org/10.52339/tjet.v25i2.323
Publisher Name
University of Dar es Salaam