Numerical Analysis of Seawater Sea-Sand Engineered Cementitious Composites (SS-ECC) Beams Subjected to Impact Loads

Volume Title: ICASGE2025

Paper ID : 1137-ICASGE-FULL (R1)

Structural Engineering Department, Faculty of Engineering, Tanta University, Tanta, Egypt

The increasing scarcity of freshwater and river sand in coastal regions has created an urgent need for alternative construction materials. Seawater Sea Sand Engineered Cementitious Composites (SS-ECC) provide a sustainable solution by utilizing available seawater and sea sand, reducing transportation costs and environmental impact. Additionally, ECC mitigates the brittleness caused by replacing steel bars with fiber reinforced polymer (FRP) bars, eliminating corrosion concerns. This makes SS-ECC an ideal material for marine and coastal infrastructure. This paper numerically investigates the performance of (SS-ECC) beams reinforced with (FRP) bars under impact loads using Abaqus software. Finite element analysis was performed and validated by comparing its results with experimental data from the literature, showing good agreement. Impact loads were chosen to simulate impulsive effects from events such as vehicle accidents, terrorist attacks, explosions in nuclear facilities, and rock falls. The study analyzed how stirrup ratio and impact energy influence the mechanical response of concrete beams. Results demonstrate that SS-ECC beams with FRP bars exhibit superior impact resistance, enhanced crack control, and improved energy dissipation compared to traditional cementitious materials.

Seawater Sea-Sand; Engineered Cementitious Composites; Fiber Reinforced Polymer; Finite; Analysis; ABAQUS; Impact load

Structural Analysis (STA)