The interconnection of wetting and drying with freeze-thaw : some new data in Periglacial processes and landforms.

Auteurs :
HALL, K.
KOSTER, E.A.
FRENCH, H.M.

Description :
Ultrasonic monitoring of moisture adsorption and desorption of a quartz micaschist produced results contrary to expectations. Upon water uptake rather than an ultrasonic velocity increase due to the introduction of a better propagating medium there was a velocity decrease. This velocity decrease is interpreted as being a consequence of changes in rock elasticity brought about by a diminution in the bonding strength of the rock. This means that wetting, prior to freezing, may weaken a rock.


Type de document :
Article de périodique

Source :
Zeitschrift für Geomorphologie. Supplementband, issn : 0044-2798, 1988, n°. 71, p. 1-11, Références bibliographiques : 35 réf.

Date :
1988

Editeur :
Pays édition : Allemagne, Berlin ; Stuttgart, Borntraeger