Tropical residual soils differ from transported soils which are principally derived from coastal, fluvial, wind blown or glacial processes. In the tropics, residual soils probably form the largest group with which the engineer has to deal. Being formed in situ these soils have particular characteristics that distinguish them from material deposited from transported soils.
The aim of the original Working Party Report, published in 1990, was to establish a reasonably comprehensive guide to the engineering classification and characteristics of tropical residual soils. The Working Party comprised academics, researchers, contractors and consultants known to have been particularly concerned with tropical residual soils.This edition makes the report available in book form for the first time. The opportunity has been taken to revise every chapter in the light of progress in scientific and engineering knowledge since 1990. Chapter 2 has particularly benefited from pedological advances and Chapter 4 from practical advances in engineering geology fieldwork. An index is also included.