Work

Determination of Mohr–Coulomb Failure Criterion of Cement-Treated Materials Using Mixture Design Properties

Year: 2025

Type: article

Abstract: The compressive, tensile, and shear strength properties of two cement-stabilized soils (CSS) treated with 2% to 4% of cement are investigated for several different curing times at several densities. The measured Mohr–Coulomb (MC) shear strength features, cohesion (c), and friction angle (φ) are compared with values reported in the literature for similar materials and are subject to debate depending on the estimation methods used. In addition, an alternative geometric criterion based on indirect tensile strength (ITS) and unconfined compressive strength (UCS) is evaluated. The results show that the value of c determined using the alternative criterion is slightly higher than the value of c measured using the direct shear (DS) test. A relationship between mixture variables and c is established and validated by combining numerical and experimental approaches. The friction angle appears to be constant, independent of mixture parameters. This parameter is underestimated using the geometric approach.

Source: Infrastructures

DOI: 10.3390/infrastructures10100267

Authors: Mario Castaneda-Lopez, Thomas Lenoir, Luc Thorel, Jean-Pierre Sanfratello

Institution: Université Gustave Eiffel

Language: English

Topic: Geotechnical Engineering and Soil Stabilization

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,172

Funder: Ministero della transizione ecologica