Clayey soils are challenging in geotechnical engineering because of their high compressibility, moisture sensitivity, and low shear strength. This study investigates lightweight and sustainable pumice, locally termed Ponza, for stabilizing clayey soil collected from Al-Amiriya, Baghdad, Iraq. Pumice was incorporated at...
The demand for sustainable soil stabilizers has driven interest in soil–biochar mixtures for geotechnical applications such as landfill liners and subgrade systems. However, the role of biochar particle size in governing compressibility, shear strength, and heavy metal immobilization remains unclear. This study examine...
This study examines the small-strain shear modulus ( G max ) and water retention behavior of unsaturated sand–silt mixtures with a focus on the effects of fines content (FC), mean net stress ( p n ), and hydraulic hysteresis. A comprehensive experimental program was conducted, incorpor...
The replacement of conventional aggregates in concrete with alternative and waste-based materials has become an important research area for sustainable construction. This study experimentally investigated the effects of natural perlite aggregate replacement and fiber reinforcement on the mechanical and microstructural...
Cement-stabilized soil is widely used for ground improvement but suffers from brittleness and low tensile strength. This study investigates combined modification of cement-stabilized soil with waste brick powder (WBP, 5%) and glass fiber (GF, 0–2.0%) to enhance mechanical performance and microstructural integrity. Unco...
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