In the subtropical regions, the problem of wood supplying becomes more and more difficult to be solved. In that context, the Centre Technique Forestier Tropical had paid a particular attention to the valorization of products issued from plantations in dry zones of Africa. In these plantations, the products of clearings can be used as fencing, stakes or for traditional construction. However in these trunks of small diameter, the sapwood which represents a large proportion of the ligneous matter utilized, possesses a poor natural resistance as much as in regard to decay as in regard to wood-destroying insects and particularly termites. For that reason a rational use of the round woods cannot be considered without the help of wood preservation. The single dipping or brushing being insufficient mainly for the timber in ground contact and the traditional vacuum-pressure treatment being considered too expensive by local authorities, the Centre Technique Forestier Tropical tried to imagine a new system of treatment.

Download document (857 kb)
free for the members of IRG. Available if purchased.

Purchase this document