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vol.110 No.8 August 2025
Materials, manufacturing and construction techniques of a new era
Civil engineering in the 21st century faces an increasingly complex array of societal challenges: the Nankai Trough mega-earthquake, climate change,
a shrinking and super-ageing population, carbon neutrality, ageing infrastructure, and a shortage of engineers and skilled workers.
How can we solve this escalating complexity? One of the answers is that the current generation of civil engineers should be more aggressive in evolving our conventional knowledge and methodologies and embracing rapid technological progress such as generative AI, 3D printing, metamaterials, etc. Moreover, integrating knowledge and technology across various academic domains is required to grasp current and future technological seeds and societal needs. How flexibly civil engineering embraces these game-changers will undoubtedly determine its future development.
This month's special feature explores attractive construction materials, manufacturing and construction techniques, and their fundamental theories of a new era. Specifically, stainless steel, flash-butt welding, UHPFRC, 3D printing, bio-cementation, fale-safe steel, carbon nanotube, auxetic material and a unique material made from food waste are focused on. The opening roundtable discussion features experts from materials science, civil engineering, and 3D printing ventures. They discuss the challenges and prospects of implementing new technologies in society, offering insights that broaden perspectives within the field.
