The use of porous pavements to mitigate flooding in large urban centers

Abstract

Increasing urbanization has challenged cities to face complex environmental problems, such as urban flooding, degradation of water resources, as well as increased generation and poor management of urban solid waste. In this context, the search for sustainable alternatives in civil construction has become a priority to effectively address these issues. An innovative and promising solution is permeable pavement, which allows water to pass through its structure, minimizing the negative impact of urban development on the environment. Therefore, the present research aimed to propose the implementation of permeable pavement using RCD in squares in the City of Recife-PE, with a focus on sustainable urban drainage. Data from squares, parks and green areas in Recife were compared with critical flooding points, identifying areas that could be used for this technology. This work also indicates the replacement of conventional aggregate, gravel, with construction and demolition waste, making an alternative even more sustainable and technically/economically viable. This proposition aims to mitigate the effects of flooding caused by extreme weather events. The results indicate an area capable of being used as permeable pavement of 8,897.72 m² in 15 squares in the city. In this way, a useful volume available for reservation of 1,761,748.56 liters of water was obtained, helping to mitigate the problem with flooding in Pernambucos’s capital.