Incorporation of recycled aggregates from construction and demolition waste in paver blocks

Ingunza, Maria Del Pilar Durante; Pederneiras, Cinthia Maia; Amorim, Ênio Fernandes; Ferreira, Ruan Landolfo da Silva

Incorporation of recycled aggregates from construction and demolition waste in paver blocks

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dc.contributor.author	Ingunza, Maria Del Pilar Durante
dc.contributor.author	Pederneiras, Cinthia Maia
dc.contributor.author	Amorim, Ênio Fernandes
dc.contributor.author	Ferreira, Ruan Landolfo da Silva
dc.date.accessioned	2020-10-29T13:51:19Z
dc.date.available	2020-10-29T13:51:19Z
dc.date.issued	2020-08-24
dc.description.resumo	The consumption of natural resources and energy increased proportionally with the growth of the world population and its economic level. There was an increasing exponential consumption of natural resources, which implied an increase in environmental impacts. The construction sector is responsible for a very significant production of construction and demolition waste (CDW). Thus, there is a concern in search of a more sustainable final disposal. Many studies have been investigated the development of new materials with the incorporation of recycled aggregates from CDW. This paper presents a study of performance evaluation of concrete blocks produced with CDW. For that purpose, an experimental campaign was performed, including a characterization of the aggregates used. The incorporation of 100% of fine and coarse recycled aggregates. The mixtures were designed according to the condition of the aggregate (dry, washed or saturated). The performance of these blocks was evaluated in terms of mechanical strength and water absorption. Some additional tests were also performed to deeper analyze of the microstructure of these blocks. To assess the durability of the concrete blocks, a full-scale road was built. The results were very positive, since there were no significant differences between the modified concrete blocks and the reference sample (0% of the CDW). The modified block with fine aggregate presented the best performance of all the blocks, concerning mechanical strength. In addition, the performance of concrete blocks with washed recycled aggregates had a better performance compared to the others. The results obtained were satisfactory for the application of the blocks in the streets with low movement and low load	pt_BR
dc.identifier.citation	PEDERNEIRAS, Cinthia Maia; DURANTE, Maria del Pilar; AMORIM, Ênio Fernandes; FERREIRA, Ruan Landolfo da Silva. Incorporation of recycled aggregates from construction and demolition waste in paver blocks. Revista Ibracon de Estruturas e Materiais, [S.L.], v. 13, n. 4, p. 1-2, 2020. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000400200&tlng=en. Acesso em: 20 out. 2020. http://dx.doi.org/10.1590/s1983-41952020000400005.	pt_BR
dc.identifier.doi	10.1590/s1983-41952020000400005
dc.identifier.issn	1983-4195
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30511
dc.language	en	pt_BR
dc.publisher	IBRACON - Instituto Brasileiro do Concreto	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Recycled aggregates	pt_BR
dc.subject	Construction and demolition waste	pt_BR
dc.subject	Paver blocks	pt_BR
dc.title	Incorporation of recycled aggregates from construction and demolition waste in paver blocks	pt_BR
dc.title.alternative	Desempenho de blocos de concreto com incorporação de agregados reciclados provenientes de resíduos de construção e demolição	pt_BR
dc.type	article	pt_BR