Expansive concrete, often referred to as shrinkage-compensating concrete, is designed to increase in volume during the hardening process. This unique property is achieved through the addition of expansive agents such as calcium sulfoaluminate, which are formulated to counteract the effects of shrinkage typically observed in conventional concrete. The primary aim of using expansive concrete is to reduce cracking due to drying shrinkage and thermal variation, enhancing the durability and longevity of concrete structures, especially those exposed to severe environmental conditions such as extreme temperatures, moisture variability, and chemical exposure.