SOILS AND FOUNDATIONS· 2026Q1
On the mechanical behaviour of a bonding-dominated soft rock
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- Q1SCImago
- 2026year
Short summary
Strongly cemented Palermo Calcarenite destructurates to a consistent reference state in triaxial and 1D compression, unlike weakly cemented Marsala Calcarenite which shows no convergence.
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Key points
- Strongly cemented Palermo Calcarenite shows progressive destructuration and converges to a reference state in both triaxial and 1D compression tests.
- Intact and reconstituted specimens of Palermo Calcarenite converge, indicating a structural evolution towards a common state.
- Weakly cemented Marsala Calcarenite did not show convergence between intact and reconstituted states under 1D compression.
- Differences in cementation degree and distribution explain the contrasting mechanical responses.
AI-generated from the title and abstract; the full text is not read.
Abstract
The role of bonding intensity in controlling the mechanical evolution of cemented carbonate formations towards an intrinsic reference state remains an open issue.This study investigates the behaviour of strongly cemented Palermo Calcarenite through drained triaxial and high-pressure oedometer tests on intact and reconstituted specimens, and compares the results with those previously obtained for the weakly bonded Marsala Calcarenite.Palermo Calcarenite undergoes progressive destructuration and approaches a well-defined reference state, with intact and reconstituted specimens converging in both one-dimensional compression and triaxial shearing.In contrast, the previously investigated Marsala Calcarenite shows no convergence between intact and reconstituted states under one-dimensional compression.The contrasting responses are associated with marked differences in the degree and distribution of cementation and in the resulting structure.These results show that the response to reconstitution is not unique among calcarenites with different structural characteristics and that a reference state cannot be assumed a priori for this class of geomaterials.
The authors' abstract, as published at the source. SOILS AND FOUNDATIONS, 2026 · DOI ↗
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Field: Mechanics of Materials
Mechanics of MaterialsEngineering