Analysis of generation and characterization of construction and demolition waste on construction sites in the city of Recife, Brazil

Abstract

In order to planning the Construction and Demolition Waste (CDW) management approach on a construction site, it is necessary to have a prior knowledge of what is being generated (qualitative analysis), the quantity that is being generated (quantitative analysis), and what is the proper final destination assigned to this material. This article proposes a new method to estimate CDW generation in Brazil from a qualitative and quantitative analysis of CDW generation in worksites. For the waste characterization, it was used the compression test with energy of Standard Proctor Test, granulometric analysis, microstructure analysis and direct shear tests. For the quantitative data collection, the research was limited to worksites of residential or commercial multi-story buildings, with reinforced concrete structure, which is the most common type used in Brazil. The data on the number of waste bins removed monthly, transportation and final disposal, CDW management costs, and constructive process were obtained from the construction companies.

Computational system for the integrated management of construction and demolition waste

“…In this step, we sought to insert the equations and features of each tool in the modules to achieve the intended objectives. The equations entered in the system were according to the literature survey and data collection (TESSARO; SÁ; SCREMIN, 2012;SCREMIN;CASTILHOS JUNIOR;ROCHA, 2014;KERN et al, 2015;PAZ;LAFAYETTE, 2016;GULARTE et al, 2017;FONSECA;RIBEIRO JUNIOR, 2018;PAZ;LAFAYETTE;SOBRAL, 2018;LAFAYETTE et al, 2018;KERN et al, 2018;TEIXEIRA et al, 2020).…”

Modelling of demolition waste generation: Application to Greek residential buildings

“…It can also be used to assess environmental impact under field conditions and emergency situations, such as after earthquakes and war. Wu et al (2014) classified the methods that had been used for CDW quantification into six main categories: (1) site visit (Hoang et al, 2020; Lafayette et al, 2018; Poon et al, 2004), (2) generation rate calculation (Banias et al, 2011; Cha et al, 2017; Fatta et al, 2003; Lu et al, 2015; Ram and Kalidindi, 2017), (3) lifetime analysis (Huang et al, 2013; Kalcher et al, 2017; Marinova et al, 2020; Wu et al, 2016), (4) classification system accumulation (Coelho and de Brito, 2011; Kim et al, 2017; Llatas, 2011; Solís-Guzmán et al, 2009), (5) variables modelling (VM) (Kern et al, 2015, 2018; Lu et al, 2021; Teixeira et al, 2020) and (6) others (Shi and Xu, 2006), but many researchers have used a combination of two or more of the above. Another approach for the estimation of CDW is building information modelling which provides building designs and data from a project in digital form, yielding geometric and semantic information for waste quantification (Cheng and Ma, 2013; Guerra et al, 2019; Hu et al, 2022; Su et al, 2021).…”

Estabilização de solos tropicais com resíduos da construção civil e escória de aciaria para uso em pavimentação

“…Depreende-se que o crescimento do setor da construção civil, tão necessário ao desenvolvimento socioeconômico do país, acarreta aumento de consumo de agregados naturais, ocasionando maior gasto energético, escassez de jazidas e impactos ao meio ambiente. Atreladas a esse crescimento, surgem também questões relacionadas ao desperdício de materiais da construção civil, que geram grande volume de resíduos em obras (BARROS, 2012;SÁEZ et al, 2014;LAFAYETTE et al, 2018). Várias pesquisas apontam a reciclagem desses resíduos como uma prática importante para a sustentabilidade, seja atenuando os impactos ambientais gerados ou reduzindo os custos (TAM et al, 2008;LLATAS, 2011;GHANBARI et al, 2017;.…”

“…Segundo Barros (2012), de todos os materiais que entram numa obra, uma fração significativa sai como resíduos, tais como brita, areia, cacos cerâmicos e de tijolos, sobras de argamassa e de concreto, madeira, plástico, metal, solo, entre outros, podendo representar uma perda de até 30% do volume total utilizado. Esse elevado índice de perda está representado pelas altas taxas de geração de resíduos por metro quadrado de obra construída (OSMANI et al, 2008;SOLÍS-GUZMÁN et al, 2009;KATZ, BAUM, 2011;LLATAS, 2011;RÖHM et al, 2013;SÁEZ et al, 2014;COSTA et al, 2014;LAFAYETTE et al, 2018).…”