Control Parameters for the Long-Term Tensile and Compressive Strength of Stabilized Sedimentary Silt

The yellow-layer soils of the Guabirotuba formation in Brazil are problematic due to their expansive nature and low-bearing capacity. There has been little exploration into stabilizing these using a calcium-based binder. In addition, existing methods for dosing lime fine coarse-grained porosity-to-lime index (η/Liv) have primarily focused on non-optimal compaction conditions determine split tensile compressive strengths empirical relationships between both tests while ignoring study optimal lime-soil mixes conditions. Therefore, objective this research is examine unconfined (qu) (qt) behavior traditional yellow silt stabilized with dolomitic hydrated (L) under standard, intermediate, modified effort correlation qu qt. blends were cured up 180 days, 3-9% percentages used optimum (maximum dry density water content). porosity/lime (η/Liv), semi-empirical index, was utilized investigate evolution qt over short long term. η/Livvaried 6-25% by volume. Furthermore, qt/qu calculated be 0.12-0.20, depending curing time, independent addition used. Equations well-suited power function based time η/Livindex proposed. Finally, some dosages soil-lime mixtures proposed possible applications geotechnical engineering, applying porosity volumetric binder conditions, which had not applied before lime-improved soils. Doi: 10.28991/CEJ-2023-09-04-03 Full Text: PDF