Environmental degradation of clayey rocks

Title: Environmental degradation of clayey rocks
Creator: Pineda, Jubert A.; Sheng, Daichao
Relation: 7th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT 2019). Proceedings of 7th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT 2019) (Nagoya, Japan 23-29 August, 2019) p. 8-20
Relation: ARC.DP150103396 http://purl.org/au-research/grants/arc/DP150103396
Publisher Link: http://dx.doi.org/10.3208/jgssp.v07.002
Publisher: Japanese Geotechnical Society
Resource Type: conference paper
Date: 2019
Description: This paper explores the mechanisms that lead to the degradation of clayey rocks when exposed to environmental effects as those caused by unloading and cyclic variations in relative humidity. The following aspects are evaluated: (i) the number of applied RH cycles, N, (ii) the amplitude of relative humidity cycles, RH, (iii) the stress level (p-ua) and (iv) the effect of the fluid used to induce rock saturation (liquid water or vapour). The implementation of nonconventional experimental techniques for inducing and tracking rock degradation, at 'macro' and 'micro' scales, is described. An experimentally-based framework of behaviour is presented which may be used in practice for the evaluation of the degradation potential of clayey rocks.
Subject: clayey rocks; rock degradation; wetting-drying cycles; relative humidity; damage law
Identifier: http://hdl.handle.net/1959.13/1454160
Identifier: uon:44848
Language: eng
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