Reinforced concrete structures are commonly utilized in industrial environments, but their longevity is often threatened by several factors that can lead to their degradation over time. These factors include exposure to harsh chemicals like H2S, CO2, and SO4, as well as high levels of moisture, humidity, and extreme temperatures. As a result, concrete structures in industrial settings are frequently found with damages like cracks, spalls, and surface degradation. Therefore, it is crucial to prevent degradation and rehabilitate concrete structures to prolong their service life. Various methods are available for repairing cracks and spalls in concrete structures, including epoxy injection, polymer concrete overlays, and shotcrete. To protect the reinforcing steel from corrosion, cathodic protection can be utilized. Additionally, surface coatings or sealants can be applied to improve the surface quality of concrete and inhibit the penetration of chemicals, moisture, and other degradation factors. Other effotrs, such as creating geopolymer concrete, adding additives, and using stainless steel instead of carbon steel, have also proven to be effective in reducing concrete failures. By implementing these various methods, the overall quality and longevity of reinforced concrete structures can be significantly improved, leading to a reduction in maintenance costs and downtime. Therefore, it is vital to prioritize the implementation of these works in the design, construction, and maintenance phases of concrete structures to achieve long-term sustainability and improve their overall performance.