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Comportamento de betões com agregados finos reciclados

Authors: Evangelista, Luis; Brito, J.;

Comportamento de betões com agregados finos reciclados

Abstract

A presente comunicação tem como objetivo apresentar o trabalho experimental a desenvolver acerca do desempenho de betões com agregados finos provenientes da reciclagem de betão. Presentemente, os documentos normativos relativos à utilização de agregados reciclados em betões prevê a utilização da sua fração grossa, com diferentes taxas de incorporação, dependendo do fim a que o betão final se destina, mas apontam para a não inclusão da fração fina dos mesmos. Genericamente, apontam-se como principais problemas para a inclusão destes materiais a sua elevada porosidade, que conduz a uma estrutura do betão menos compacta, com consequentes reduções de desempenho. No entanto, alguns trabalhos anteriormente desenvolvidos apontam para que a inclusão da fração fina dos agregados reciclados possa não ser tão prejudicial como se julga, podendo ser um substituto eficaz dos agregados naturais, em especial se se tiver em atenção as condicionantes ambientais inerentes ao processo extrativo. O trabalho pretende obter mais informação sobre o desempenho de betões com agregados finos reciclados de betão, comparando-os com betões convencionais, executados exclusivamente com agregados naturais pétreos.

Country
Portugal
Related Organizations
Keywords

betão, desempenho, agregados finos reciclados

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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