2017
DOI: 10.4322/2sppc.2017.021
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Influência do agregado reciclado na durabilidade do concreto: uma revisão da bibliografia

Abstract: Resumo: No Brasil, as edificações são concebidas para durar muitos anos, porém devido à falta de manutenção, aumento da demanda populacional ou mudanças nas características urbanas onde está inserida, sua vida útil muitas vezes é reduzida. Tendo em vista que os recursos naturais não são renováveis e que novas edificações demandam geração de agregados para sua produção, uma proposta que já vem sendo estudada é a utilização destes resíduos de construções e demolições transformados em agregados reciclados para co… Show more

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“…The fine aggregates with continuous particle size distributions and a greater amount of fines reduce segregation and help to achieve denser grain packing and a less porous matrix [ 75 , 87 , 88 ]. In this sense, as the recycled aggregate has greater water absorption, there may be greater adherence between the paste and the aggregate by absorption of the paste and precipitation of the hydrated crystals into the aggregate’s pores [ 89 , 90 ]. Thus, we found that CDW mortars make it possible to reduce binder consumption, resulting in savings and better sustainability performance than conventional aggregates.…”
Section: Resultsmentioning
confidence: 99%
“…The fine aggregates with continuous particle size distributions and a greater amount of fines reduce segregation and help to achieve denser grain packing and a less porous matrix [ 75 , 87 , 88 ]. In this sense, as the recycled aggregate has greater water absorption, there may be greater adherence between the paste and the aggregate by absorption of the paste and precipitation of the hydrated crystals into the aggregate’s pores [ 89 , 90 ]. Thus, we found that CDW mortars make it possible to reduce binder consumption, resulting in savings and better sustainability performance than conventional aggregates.…”
Section: Resultsmentioning
confidence: 99%