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?
- posted
19 years ago