Este trabalho apresenta o desenvolvimento de uma pesquisa aplicada relacionada à instalação de um sistema de microdrenagem de águas pluviais em áreas de vulnerabilidade socioeconômica na cidade de São Paulo, Brasil. Para tal, foi empregada a pré-fabricação leve em microconcreto de alto desempenho, moldado em fôrmas produzidas com o auxílio de máquinas de fabricação digital. O principal objetivo é promover melhoramentos urbanos em assentamentos precários acompanhados de desenvolvimento econômico local, fomentado pela autogestão e produção comunitária. Ademais, nota-se a importância para esta pesquisa de se encorajar processos participativos que envolvem a comunidade local em atividades para resolução de problemas.

This work presents the development of an applied research related to the installation of rainwater drainage systems in areas of economic and social vulnerability in São Paulo City, Brazil. It is also relevant for us to encourage participatory processes that involve the local community in problem-solving activities, while allowing appropriation of the technology applied. In this case, we are employing light prefabrication based on high performance microconcrete, molded in formwork produced with the aid of digital manufacturing. Our main purpose is to promote urban improvements in precarious settlements along with local economic development, made possible by self-management and community production.

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Recent architectural innovations, made possible by the use of parametric modeling software, have expanded the creative possibilities of the design, by including complex geometries in its historical repertoire. This research provides a background on digital creation and manufacturing tools, which enables the materialization of designs where these geometries are the core of the architectural intent.Specifically, it addresses the manufacture of GRC (Glassfibre Reinforced Concrete) lightweight panels in the last decade, as an industrialized building solution that expresses an unprecedented formal complexity, with the most emblematic examples of Zaha Hadid's recent works. However, it is questionable that although GRC is an advanced composite material, its manufacture remains relatively handcrafted and its technique has made little progress in over half a century. This research aims to respond to this apparent paradox through the use of digital manufacturing tools, with emphasis on the industrial robotic arms of 6 DOF (degrees of freedom), referring to the seminal work carried out in the 1990s by the team of Prof.