Correlations between the shear strength of mineral filter cakes and particle size and surface tension


Ozcan O. , GONUL B., BULUTCU A. N. , MANAV H.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, vol.187, pp.405-413, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 187
  • Publication Date: 2001
  • Doi Number: 10.1016/s0927-7757(01)00655-0
  • Title of Journal : COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
  • Page Numbers: pp.405-413

Abstract

In this study the shear strength of filter cakes of various minerals such as dolomite, calcite, quartz and kaolin was investigated. Shear strength of the mineral filter cakes are influenced by the particle size and shape and surface tension as well as the applied pressure and saturation degree. As the particle size decreases the shear strength increases very sharply. The relation between the shear strength and the particle size has been found as: tau (shear) = K/x(0.6). The decrease of the surface tension of the mineral suspension causes to decrease of the shear strength of the cake to a large extend. (C) 2001 Elsevier Science B.V. All rights reserved.