- Title
- Effects of relative humidity cycling on the tensile strength of a claystone
- Creator
- Pineda, Jubert A.; Romero, Enrique; Alonso, Eduardo E.
- Relation
- 2nd Pan-American Conference on Unsaturated Soils. PanAm Unsaturated Soils 2017 (Dallas, TX 12-15 November, 2017) p. 85-94
- Publisher Link
- http://dx.doi.org/10.1061/9780784481684.010
- Publisher
- American Society of Civil Engineers (ASCE)
- Resource Type
- conference paper
- Date
- 2017
- Description
- The paper presents the results of an experimental program aimed at studying the influence of relative humidity cycling on the evolution of the tensile strength of a clayey rock from Northern Spain (Lilla claystone). Different numbers of long-term relative humidity cycles (up to four) were applied under unstressed conditions by vapor transfer technique to progressively induce physical degradation. Relative humidity varied from 50 to 99% during the hydraulic cycling. The influence of hydraulic cycling on tensile strength was indirectly evaluated by splitting tests (Brazilian tests) performed on undisturbed and progressively degraded samples. The derivation of a damage law for tensile strength evolution is presented in the paper considering irreversible volumetric strain accumulation, which could be included in constitutive models for soft rocks.
- Subject
- clays; rocks; humidity; hydraulics; soil analysis; soil strength; cyclic strength; ultimate strength
- Identifier
- http://hdl.handle.net/1959.13/1390826
- Identifier
- uon:33136
- Identifier
- ISBN:9780784481684
- Language
- eng
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