Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sustainable Pervious Concrete for Urban Environment – Improvements and New Function
Urban heat island (UHI) effect refers to the overall tendency of increased temperature in urban landscapes compared to surrounding rural areas. This phenomenon is linked to anthropogenic heat (due to human activities) in the cities and a high heat storage capacity of urban construction materials. Also, it is reinforced by the air pollution linked to the traffic. In a context of rapid urbanization (leading to soil sealing, deterioration of ecosystems) and climate change with recurrent heat wave events, it is urgent to provide solutions to build more climate resilient cities. The first generation pervious concrete solution (which is initially a water management system that rapidly absorbs rainwater off streets, parking surfaces, driveways, and walkways) is the first answer to this equation. With feedback from several projects in multiple countries over the past 10 years, the major challenges in the deployment of this solution have been identified. They are mainly workability, robustness of formulation, freeze thaw resistance (in cold climate) and maintenance. The second generation of pervious concrete (using microfibers, stabilizer and air entrained technology) is able to solve the robustness and durability challenges. The combination of improved formulation and the use of activated charcoal (which acts as a filter, adsorbing pollutants such as nitrogen oxides and fine particulates) allows for the capture of pollutants more efficiently through the open porosity in pervious concrete. The pollution adsorption capacity of this solution has been proven through an open-air mock-up test.
Sustainable Pervious Concrete for Urban Environment – Improvements and New Function
Urban heat island (UHI) effect refers to the overall tendency of increased temperature in urban landscapes compared to surrounding rural areas. This phenomenon is linked to anthropogenic heat (due to human activities) in the cities and a high heat storage capacity of urban construction materials. Also, it is reinforced by the air pollution linked to the traffic. In a context of rapid urbanization (leading to soil sealing, deterioration of ecosystems) and climate change with recurrent heat wave events, it is urgent to provide solutions to build more climate resilient cities. The first generation pervious concrete solution (which is initially a water management system that rapidly absorbs rainwater off streets, parking surfaces, driveways, and walkways) is the first answer to this equation. With feedback from several projects in multiple countries over the past 10 years, the major challenges in the deployment of this solution have been identified. They are mainly workability, robustness of formulation, freeze thaw resistance (in cold climate) and maintenance. The second generation of pervious concrete (using microfibers, stabilizer and air entrained technology) is able to solve the robustness and durability challenges. The combination of improved formulation and the use of activated charcoal (which acts as a filter, adsorbing pollutants such as nitrogen oxides and fine particulates) allows for the capture of pollutants more efficiently through the open porosity in pervious concrete. The pollution adsorption capacity of this solution has been proven through an open-air mock-up test.
Sustainable Pervious Concrete for Urban Environment – Improvements and New Function
RILEM Bookseries
Banthia, Nemkumar (Herausgeber:in) / Soleimani-Dashtaki, Salman (Herausgeber:in) / Mindess, Sidney (Herausgeber:in) / Malik, Vibhu (Autor:in) / Rudy, Adam (Autor:in) / Huy Vu, Quoc (Autor:in) / Javierre Bouchard, Isabelle (Autor:in) / Dubois-Brugger, Isabelle (Autor:in)
Interdisciplinary Symposium on Smart & Sustainable Infrastructures ; 2023 ; Vancouver, BC, Canada
Smart & Sustainable Infrastructure: Building a Greener Tomorrow ; Kapitel: 88 ; 985-998
RILEM Bookseries ; 48
20.02.2024
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Pervious concrete for sustainable development
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Pervious concrete: a sustainable drainage solution
| British Library Online Contents | 2010