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  In this study, the effect of carbon fiber reinforced polymer (CFRP) wrapping on the compressive and bending behavior of damaged reinforced concrete structural elements located in high earthquake risk areas was investigated in detail. The main objective was to ...
• Mechanical properties assessment of recycled brick aggregate concrete using demolition waste from century-old masonry buildings in Nepal
  Bipul Niroula, Mahesh Raj Bhatt
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  This study explores the potential of recycling bricks from dismantled old buildings into brick aggregates and utilizing them as coarse aggregates in recycled brick aggregate concrete. Nepal, being susceptible to seismic events, generates large amounts of const...
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  Challenge Journal of Concrete Research Letters (2026) 17(1) 1-12
  This study explores the effects of partially replacing fine aggregate with 10% polyethylene terephthalate granules (PET) and cement with varying amounts (0–5%) of nano calcium carbonate (CaCO3) in M40 grade concrete. Concrete mixes were tested for workability,...
• Ultimate drift ratio prediction of steel plate shear wall systems: a machine learning approach
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  Predicting the ultimate drift ratio of steel plate shear wall (SPSW) systems is important for ensuring the structural integrity and performance of these systems under lateral loads. In this study, machine learning models are developed for predicting the ultima...
• Effect of elevated temperatures on mechanical properties of hydraulic lime-based mortar in historical structures
  Ahmet Fazil Kara, Ferit Cakir, Metehan Calis
  Challenge Journal of Structural Mechanics (2025) 11(4) 184-200
  Historic masonry structures are subjected to various negative effects from the time they are built. As a result, these structures suffer damage, leading to restoration and reinforcement efforts. Hydraulic lime-based mortars (HLMs), which are compatible with th...