Salt Attack in ceramics

From: Parramatta1 (philipmorey_at_hotmail.com)
Date: 03/17/05 

Date: 17 Mar 2005 00:34:02 -0800

Current thinking on fretting in bricks and pavers by salt attack is
due to either the energy of crystallisation of salt in the exposed
pore being greater than the strength of the modulus of rupture of the
web around the pore or that the difference in the surface tension
between an unsaturated and supersaturated solution in close proximity
between tortorous pores in the body result in the spalling of the
ceramic. Does anybody have any other suggestions as to the mechanism
of fretting of ceramics due to salt attack?