Rainwater retention by green roof with precast cementitious with EVA

Flooding problems in urban streets, resulting from the combination of occurrence of heavy rains and excess sealing of urban spaces, have caused severe losses to Brazilian cities. The green roof with your rainwater retention capacity is an interesting alternative to reduce the discharges on urban dra...

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Autores principales:	Mendonça, Tatyane Martins, Melo, Aluísio Braz
Formato:	Online
Lenguaje:	por
Publicado:	Universidade Estadual de Campinas 2020
Acceso en línea:	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651659
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id	oai:ojs.periodicos.sbu.unicamp.br:article-8651659
record_format	ojs
institution	Universidade Estadual de Campinas
collection	OJS
language	por
format	Online
author	Mendonça, Tatyane Martins Melo, Aluísio Braz
spellingShingle	Mendonça, Tatyane Martins Melo, Aluísio Braz Rainwater retention by green roof with precast cementitious with EVA
author_facet	Mendonça, Tatyane Martins Melo, Aluísio Braz
author_sort	Mendonça, Tatyane Martins
title	Rainwater retention by green roof with precast cementitious with EVA
title_short	Rainwater retention by green roof with precast cementitious with EVA
title_full	Rainwater retention by green roof with precast cementitious with EVA
title_fullStr	Rainwater retention by green roof with precast cementitious with EVA
title_full_unstemmed	Rainwater retention by green roof with precast cementitious with EVA
title_sort	rainwater retention by green roof with precast cementitious with eva
description	Flooding problems in urban streets, resulting from the combination of occurrence of heavy rains and excess sealing of urban spaces, have caused severe losses to Brazilian cities. The green roof with your rainwater retention capacity is an interesting alternative to reduce the discharges on urban drainage systems. In this article, we will analyze the rainwater retention potential, from an extensive modular green roof, proposed with precast cementitious with lightweight aggregates of Ethylene Vinyl Acetate (EVA), originated from footwear industry waste. For this, were compared results from monitoring the volumes of rainfall over the proposed green roof and conventional roofing, all installed on prototypes. Additionally, a simulation was performed to estimate the rainwater retention capacity in a hypothetical scenario, in which a small portion of the city's buildings covers were installed green roof proposed. The additional contribution to rainwater retention due to the presence of lightweight aggregates on the modules was confirmed. It has also been demonstrated that the rainwater retention capacity by green roof proposed may vary between 73.3% and 90.5%, as the soil is wet or dry, respectively. The retention volumes estimated in the city's simulation can be up to 4 million liters/day in dry conditions on the green roof. Indicating that this type of coverage is encouraged in buildings; there is the potential to mitigate flooding problems on city roads.
publisher	Universidade Estadual de Campinas
publishDate	2020
url	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651659
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spelling	oai:ojs.periodicos.sbu.unicamp.br:article-86516592020-06-30T13:52:15Z Rainwater retention by green roof with precast cementitious with EVA Retenção da água da chuva pelo telhado verde com pré-moldado cimentício com EVA Mendonça, Tatyane Martins Melo, Aluísio Braz Telhado verde Água de chuva Pré-moldados Resíduos EVA Agregados leves Green roof Rainwater Precast EVA waste Lightweight aggregates Flooding problems in urban streets, resulting from the combination of occurrence of heavy rains and excess sealing of urban spaces, have caused severe losses to Brazilian cities. The green roof with your rainwater retention capacity is an interesting alternative to reduce the discharges on urban drainage systems. In this article, we will analyze the rainwater retention potential, from an extensive modular green roof, proposed with precast cementitious with lightweight aggregates of Ethylene Vinyl Acetate (EVA), originated from footwear industry waste. For this, were compared results from monitoring the volumes of rainfall over the proposed green roof and conventional roofing, all installed on prototypes. Additionally, a simulation was performed to estimate the rainwater retention capacity in a hypothetical scenario, in which a small portion of the city's buildings covers were installed green roof proposed. The additional contribution to rainwater retention due to the presence of lightweight aggregates on the modules was confirmed. It has also been demonstrated that the rainwater retention capacity by green roof proposed may vary between 73.3% and 90.5%, as the soil is wet or dry, respectively. The retention volumes estimated in the city's simulation can be up to 4 million liters/day in dry conditions on the green roof. Indicating that this type of coverage is encouraged in buildings; there is the potential to mitigate flooding problems on city roads. Os problemas de inundação nas vias urbanas, decorrentes da combinação da ocorrência de fortes chuvas e excesso de impermeabilização dos espaços urbanos, têm causado sérios prejuízos às cidades brasileiras. O telhado verde com sua capacidade de retenção da água de chuva é uma interessante alternativa para reduzir as descargas nos sistemas de drenagem urbana. No presente artigo, procura-se analisar o potencial de retenção dessas águas, a partir de um telhado verde, proposto com pré-moldados cimentícios com agregados leves de Etileno Vinila de Acetato (EVA), originados de resíduos da indústria de calçados. Para isso, foram comparados resultados a partir de monitoramentos dos volumes de chuvas sobre o telhado verde proposto e coberturas convencionais, todos instalados em protótipos. Adicionalmente, foi feita simulação para estimar a capacidade de retenção das águas de chuvas num cenário hipotético, no qual uma pequena parcela das coberturas das edificações da cidade fosse instalada o telhado verde proposto. A contribuição adicional na retenção das águas de chuvas devido à presença dos agregados leves nos módulos foi confirmada. Também foi demonstrada que a capacidade de retenção da água de chuva pelo telhado verde proposto pode variar entre 73,3% e 90,5%, conforme o solo esteja seco ou úmido, respectivamente. Os volumes de retenção estimados na simulação para a cidade podem ser de até 4 milhões de litros/dia na condição de solo seco no telhado verde, o que indica que, caso este tipo de cobertura seja incentivado nas edificações, há potencial para mitigar os problemas de enchentes nas vias da cidade. Universidade Estadual de Campinas 2020-05-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651659 10.20396/parc.v11i0.8651659 PARC Pesquisa em Arquitetura e Construção; Vol. 11 (2020): Continuous publication; e020007 PARC Pesquisa em Arquitetura e Construção; Vol. 11 (2020): Publicação contínua; e020007 PARC Pesquisa em Arquitetura e Construção; v. 11 (2020): Publicação contínua; e020007 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651659/22441 Brazil; 2019 Brasil; 2019 Copyright (c) 2020 PARC Pesquisa em Arquitetura e Construção https://creativecommons.org/licenses/by/4.0

Rainwater retention by green roof with precast cementitious with EVA

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