This document evaluates the performance of geopolymer concrete and Portland cement concrete in acid environments. Specimens of both concretes were immersed in 2% sulfuric acid and hydrochloric acid solutions for periods of 28, 56, and 112 days. The weight change and compressive strength of the specimens were measured to analyze their resistance to acid attack. The results showed that geopolymer concrete exhibited higher resistance to both acids compared to Portland cement concrete, with lower weight loss and strength reduction when immersed. Geopolymer concrete therefore has potential for use in acid-prone environments where conventional concrete is vulnerable.