This book comprises the latest collection of peer reviewed research articles presented at the 9th International Conference on Civil Engineering, ICOCE 2025, held in Singapore from March 22 to 24. The proceedings focus on the state-of-the-art findings on topics of civil engineering and related fields. Engineering solutions are treated from a global perspective. Highlighted fields of inquiry include concrete technology, computer simulations, construction and engineering management, building materials, and architecture and urban planning. The authors outline solutions to physical, natural resource, and economic problems in many different contexts. This volume consists of refereed articles authored by a wide variety of international researchers and practitioners from many perspectives discussing current research solutions that involve problems in civil and environmental engineering. Examples that cover municipal development, transportation engineering, pollution control, and public safety are prominently featured. The chapters contain a diverse collection of applications that appeal to individuals with all levels of knowledge and interest in the important issues relevant to international engineering.