Life Cycle Assessment of Off-Site Construction Using Ultra-High-Performance Concrete

This study aims to evaluate the environmental impacts of off-site construction using ultra-high-performance concrete (UHPC) and different curing methods. Life cycle assessment (LCA) is implemented proposed UHPC traditional (TC) under conditions from cradle gate. Unlike previous studies that considered function unit as 1 m3, this investigates elements with same load capacity. Comparison made between water bath heating (HC) (UHPC), on-site UHPC, HC (TC), TC, CO2 TC. The LCA results show generally better than TC in terms impacts. Using further improves its benefits. shows higher productivity compared method. However, when design capacity increases, difference 50 °C (20 UHPC) decreases.