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Experimental sandstone weathering using different wetting and drying moisture amplitudes. Commentary

Auteur(s) et Affiliation(s)

SUMNER, P.D.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud
LOUBSER, M.J.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud


Description :
In this experimental study, 4 sets of sanstone tablets are subjected to 48h wetting and drying cycles at set moisture content fluctuations of 29, 42, 56 and 63% respectively. A common moisture application, full immersion, is used for all 4 sets. No discernable difference in mass loss or change in physical properties was found between the different sample sets. When compared with previous studies, results suggest that the effect of moisture application type may be more of a controlling factor on the weathering effect than actual moisture content achieved. A need to move towards a more standardized approach in wetting and drying experimental studies is emphasized.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 6, p. 985-990, nombre de pages : 6, Références bibliographiques : 13 ref.

Date :
2008

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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