This study examines the performance of concrete made with sea sand sea water using two types of cement: Ordinary Portland Cement (OPC) and Portland Pozzolan Cement (PPC), with the incorporation of zeolite powder. Variations in zeolite content (0%, 7.5%, and 10%) were tested to evaluate compressive strength at 14, 28, and 56 days, as well as durability after immersion in a 5% Na₂SO₄ solution for 30, 60, and 90 days. The results indicate that OPC-based concrete generally achieves higher compressive strength compared to PPC. The addition of 7.5% zeolite to OPC yielded optimal compressive strength at 56 days, while PPC with 10% zeolite demonstrated significant improvements, despite lower overall strength. Durability testing revealed that PPC concrete exhibited superior resistance to aggressive environments, particularly sulfate attack. The addition of 10% zeolite significantly enhanced durability up to 90 days of immersion. For OPC concrete, 7.5% zeolite effectively reduced porosity and improved durability, although a slight decline was observed at 90 days. These findings highlight that while OPC provides better compressive strength, PPC with zeolite offers superior durability under harsh environmental conditions, making it a recommended choice for concrete construction in coastal regions.