International Journal of Scientific Research and Engineering Development

In geotechnical engineering, it is imperative to comprehend the behaviour of silty clay deposits to ensure effective structural design and analysis. This study primarily focused on investigating how permeability and specific gravity influence the dry density of silty clay deposits. The objective was to develop an integrated model to predict variations in dry density in relation to these parameters, thereby addressing knowledge gaps regarding local conditions and external factors that affect predictability. Laboratory experiments were conducted to measure the permeability, specific gravity, and dry density of silty clay samples. The findings consistently showed experimental dry density values exceeding 100 kg/m³, with notable peaks such as 1861.20 kg/m³ (predicted) and 1739.1 kg/m³ (experimental) at varying depths. Graphical analysis confirmed a strong linear relationship among dry density, permeability, and specific gravity, validating the predictive model against the experimental results. The results indicated that the experimental values offered the best fits and frequently surpassed the typical permissible limits set for foundation soils, which are generally above 1300 kg/m³. However, discrepancies between predictive and experimental outcomes underscored the impact of external factors such as spatial heterogeneity, compaction effort, and mineralogy, which hindered consistent predictability. These findings reinforce the critical relationship among permeability, specific gravity, and dry density in silty clay deposits. Further research should aim to expand the dataset and explore additional variables to enhance model accuracy and applicability in engineering practices. It is essential to provide recommendations for improved site-specific assessments and methodological refinements in data collection and analysis to optimize the use of silty clay in civil engineering projects.

Amadi. P.N, Eluozo S.N,"Modelling and Simulation of Dry Density on Variation of Permeability and Specific Gravity in Silty Clay Deposition" International Journal of Scientific Research and Engineering Development, V9(1): Page(1415-1439) Jan-Feb 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.