Published Online:January 2026
Product Name:The IUP Journal of Structural Engineering
Product Type:Article
Product Code:IJSE040126
DOI:10.71329/IUPJSE/2026.19.1.45-62
Author Name:Mohammad Abu Sadeque
Availability:YES
Subject/Domain:Engineering
Download Format:PDF
Pages:45-62
The paper studies the design outcomes of the rehabilitation and retrofitting of reinforced concrete (RC) structures using ferrocrete technology for a project in Ghazipur, Bangladesh. The study was conducted following the updated criteria as per the required code (BNBC-2020). It identified several serious structural weaknesses, particularly weakness in earthquake resistance, insufficient column capacity, and lack of punching shear resistance in the footings. The detailed engineering assessment (DEA) conducted included semi-destructive and nondestructive material testing and finite element modeling (FEM), which confirmed the urgent need for strengthening in specific weak areas of the structure. The ferrocement jacketing chosen as the rehabilitation method was a 50 mm thick mortar layer, reinforced vertically and horizontally with three layers of galvanized wire mesh and closely spaced 12 mm diameter bars. The study concludes that retrofitting of RC structures using ferrocrete jacketing is a cost-effective and low-tech method. For the widespread implementation of ferrocement-based retrofitting methods across the country, emphasis is placed on formulating standardized guidelines, developing the skills of construction workers, and implementing regular measures for structural health monitoring.
Reinforced concrete (RC) has been employed increasingly in building and infrastructure construction in Bangladesh in the last forty years due to massive urbanization and industrialization.