Edwin
Gyasi
Owusu

During my internship at Fragilda Construction Company, I observed recurring delays and inconsistencies in the concrete batching process, particularly around the hydraulic mixing and material feed systems.

Pressure drops in the hydraulic lines during peak operation, uneven aggregate distribution in the mix, and downtime caused by manual overrides on automated sequences.

Worn hydraulic seals reducing system pressure by an estimated 15–20%, inconsistent calibration of aggregate feeders, and lack of a preventive maintenance schedule for critical components.

Proposed a scheduled maintenance protocol for hydraulic components, recalibration of feeder systems at 2-week intervals, and a simple daily checklist for operators to flag pressure anomalies early.

What is the spatial distribution pattern of heavy metal contamination in soils across Abuakwa South Municipal, and where are the hotspots?

50+ georeferenced soil samples analyzed for Arsenic, Lead, Cadmium, and Nickel concentrations, processed through systematic sampling across the municipality.

Applied Ordinary Kriging and spline interpolation in QGIS and Python to generate continuous surface maps from point data. Used semivariogram analysis to model spatial autocorrelation.

Identified concentrated contamination clusters near artisanal mining zones and agricultural areas, with Arsenic levels exceeding WHO thresholds in 3 distinct zones. Results support targeted remediation planning rather than blanket interventions.

During my attachment at CSIR-Building and Road Research Institute, I worked with borehole log data from multiple project sites across the Greater Accra and Ashanti regions.

Compiled and interpreted borehole logs including SPT N-values, soil profile descriptions, and groundwater levels. Assisted in correlating subsurface conditions across sites to identify bearing capacity trends.

Applied SPT correction methods (energy correction, overburden correction) to raw field data. Cross-referenced soil classifications with local geological maps to validate consistency.

Contributed to foundation type recommendations — identifying sites suitable for shallow foundations versus those requiring deep foundation solutions based on bearing capacity and settlement analysis.