PROPERTIES AND PERFORMANCE OF LATERITIC SOIL IN ROAD PAVEMENTS

However, in some tropical countries, many lateritic gravels have been successfully used in road pavements despite the fact that they do not comply with the temperate zone specification requirements for particle size distribution, plasticity characteristics, and sometimes CBR. A s pecification for the use of tropical soils in road pavements needs to be developed, based on the genesis of the soils and the climatic envir onment. The laboratory characteristics and performance as a paving mat erial, of a lateritic soil developed on sandstone in south-east Queens land, Australia, has been investigated. Based on the important feature s of the lateritic soil and its good performance as a road pavement, a criterion suitable for the selection of lateritic soil developed on s andstone as a paving material, under similar climatic conditions to th ose prevailing in south-east Queensland, has been proposed.