Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Etats Unis → 1986 → Use of bentonite to stabilize sandy soil material in a wind tunnel study

Kansas State University (1986)

Use of bentonite to stabilize sandy soil material in a wind tunnel study

Diouf, Babou

Titre : Use of bentonite to stabilize sandy soil material in a wind tunnel study

Auteur : Diouf, Babou

Université de soutenance : Kansas State University

Grade : Master of Science (MS) 1986

Description
Senegal is a developing country with limited financial rsources ; however, because of the importance of the area involved, cheaper methods of stabilizing the spreading sand dunes must be found. For years, efforts have been made to stop the advancement of sand dunes. The techniques that may presently be used are effective, but less expensive ways are necessary in order to protect other areas. This research project was conducted to find the effectiveness of adding clay to stabilize dunes against wind erosion. Sand dunes stabilized with clay should be cheaper than the methods presently used in Senegal. Kaolinite and bentonite are relatively cheap and easy to find and to add to the top layer of the dune surface. The resulting crust may reduce wind erosion damage by stabilizing the dune surface Dry soil aggregates with higher mechanical stability are more resistant to wind erosion than aggregates with lower mechanical stability. The mechanical dry soil aggregate stability is a physical property of aggregates. The study reported here is a study of the behaviour of crusts under the influence of wind and abrasion caused by saltating particles in the test section of the wind tunnel

Annonce (K-REx)

Version intégrale (1,56 Mb)

Page publiée le 24 avril 2016, mise à jour le 19 février 2018