On the Feasibility of Using Industrial Urea to Mitigate Thermal and Shrinkage Cracking in Concrete

Industrial urea is an organic compound that widely used for various physiological processes and producing nitrogen fertilizers. This study hypothesized mixing with concrete would decrease the temperature expansion of cement microstructure abruptly due to reaction water a hydration product. tested hypothesis by experiments. The performance was evaluated after setting ratio industrial 0%, 5%, 10%, 15%. results showed decreased drastically immediately in increased higher ratio. Consequently, condensation delayed, heat decreased. It found when considering workability compressive strength development performance, proper around 10%. proposed design technique mixed urea. Additionally, this reported better carbonation resistance mitigated shrinkage strain compared existing low-heat ratios.