Making visible concrete's shadow places: mixing environmental concerns and social inequalities into building materials

This paper critically examines the dominant role of concrete in the modernization of Asian cities since the mid twentieth century. While builders, architects, planners and citizens have long praised the advantages of concrete, we argue that concrete can no longer be seen as socially and environmentally neutral in the Anthropocene. When concrete cracks, it does so literally and metaphorically. The cracks manifest not only in the actual material but as socioecological concerns. We employ the concept of "shadow places" to explore the underside of concrete production where those cracks emerge. Using case studies at the edges of Metro Manila, Philippines, we shed light on the precarious livelihoods of workers in an unregulated aggregate quarry and the dust pollution affecting neighbourhoods near cement plants. These two cases offer insights not only into specific socioecological issues but also into how communities negotiate them. We expose concrete's entanglements and their implications for urban development.