A simplified approach for determining the hydrometer's dynamic settling depth in particle-size analysis

Auteur(s) et Affiliation(s)



Description :
The goal of this work is based on determining the actual settling depth of the hydrometer's geometric center associated with a given concentration, and using this depth to determine the corresponding particle size (equivalent diameter) at the given reading time. This is done on 28 soils obtained from different regions of the Egyptian Nile Delta (all texture except sands), and the desert to the west of the Delta (sands). Textures of these soils ranged from sand to clay, including a number of calcareous soils. This method is fast yet accurate compared with method based on center of buoyancy. No significant differences were found between the 2 methods and no differences in texture designation were seen between the 2 methods. It is concluded that the introduced method is appropriate when many hydrometers are used.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2012, vol. 97, p. 95-103, nombre de pages : 9, Références bibliographiques : 31 ref.

Date :
2012

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena