The non-destructive investigation of a pavement residual strength in a tropical savannah environment of Nigeria

The non-destructive in-situ investigation of the residual strength of a 126-6 km non-flexible pavement in a developing tropical Savannah environment is discussed. The problems associated with this technique of Investigation in this environment are highlighted. It is found that (i) the geology, and (ii) pavement course material type, affect the measured pavement residual strength and (iii) a properly articulated mobilisation process is essential for a successful testing programme in this environment. \n L’ investigation en place pas destructif d&s;une pavement inflexible de 126.6 km dans 1&s;environment d&s;une savana tropicale en voie du developpement est discuté. Les problèmes relatifs à cette technique d&s;investigation dans cet environment sont indiques. On a trouve" que (i) la geologie et (ii) le type de material du pave” touche la force residuelle mesuree et (iii) un procede d&s;une mobilisation bien articule est epreuve du succis dans cet environment.