Recycled Fine Aggregates
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Concretos com agregados reciclados de resíduos de construção e demolição e adições minerais: uma análise bibliográfica
RESUMO Os impactos ambientais causados pela produção do concreto precisam ser reduzidos para torná-lo um material mais sustentável. O uso de agregados reciclados em substituição aos agregados naturais e das adições minerais em substituição parcial ao cimento são alternativas que podem tornar o concreto um material com menor carga de poluentes asso
Matéria (Rio J.). Publicado em: 10/06/2019
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2. Efeito da adição de resíduos da construção e demolição (RCD) nas propriedades hidromecânicas de um solo areno-argiloso
RESUMO Diante de uma produção cada vez mais evidente dos resíduos sólidos resultantes das ações humanas, tais como os Resíduos da Construção e Demolição (RCD), destinar adequadamente estes materiais tem ganho importância no cenário atual, pois quando dispostos irregularmente atuam de forma degradante sobre o meio ambiente e contribuem com a prol
Matéria (Rio J.). Publicado em: 10/06/2019
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3. Avaliação das propriedades físicas, químicas e mineralógicas da fração fina (<150 µm) do agregado reciclado de RCD
Resumo Fatores como o alto consumo de recursos naturais e os elevados volumes de resíduos produzidos pela indústria da construção civil alertam sobre a importância de reutilizar e reciclar os materiais. Assim, este trabalho objetivou determinar e avaliar as características físicas, químicas e mineralógicas dos finos do agregado reciclado (FAR), comp
Cerâmica. Publicado em: 2019-01
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4. Using fine recycled concrete aggregate for mortar production
This research assessed the performance of mortars in which recycled concrete aggregates (RCA) was a component. It replaced natural sand but kept the same particle size distribution. Three mortars were produced with replacement ratios of 20%, 50% and 100% as well as a reference mortar containing no recycled aggregate. The compressive and flexural strength, wa
Mat. Res.. Publicado em: 08/10/2013
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5. A new method to determine the density and water absorption of fine recycled aggregates
The construction industry keeps on demanding huge quantities of natural resources, mainly minerals for mortars and concrete production. The depletion of many quarries and environmental concerns about reducing the dumping of construction and demolition waste in quarries have led to an increase in the procuring and use of recycled aggregates from this type of
Mat. Res.. Publicado em: 21/05/2013
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6. Estudo do uso do agregado miÃdo reciclado de concreto na produÃÃo de argamassa para revestimento vertical / Study of the use of recycled aggregate concrete in the production of mortar for coating vertical
The utilization of fine recycled aggregate originated from concrete debris recycling presents economics advantages, once recycled fine aggregate has lower costs than natural fine aggregate. Besides, there is an environmental gain due to the replacement of natural fine aggregate by recycled aggregate resulting in a in a reduction of damage caused by irregular
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
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7. Caracterização e separabilidade de agregados miúdos produzidos a partir de resíduos de construção e demolição. / Technological characterization and separability studies on fine aggregates produced from construction and demolition waste.
The current demand for recycling on construction is due to the increasing consumption of aggregates, the exhaustion of deposits close to large cities as well as the ban on inert materials dumping in landfills and the rising cost of its disposal. Moreover, with the remarkable increasing on construction activities in many countries, the management of Construct
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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8. Propriedades de concretos produzidos com rejeito particulado de borracha em substituição parcial do agregado miúdo / Properties of concretes containing waste vulcanized rubber scrap particles replacement of finer aggregate
This work presents results from an investigation on the potential use of waste vulcanized rubber scrap (WRS) particles as aggregate in construction concretes. The waste rubber scrap used in this study was obtained from the local rubber manufacturing industry. In the preparation of concretes, the Brazilian Standard was followed to achieve the required amounts
Publicado em: 2009
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9. Influência da substituição do agregado miúdo natural por agregado reciclado fino em propriedades de argamassas e concretos
Construction and demolition waste (CDW) recycling has been a good alternative to reducing the impact caused by the consumption and high demand of raw materials for civil construction. In this sense, it has been tried to incorporate those wastes in the production of concrete and decrease strength mortar, what would increase its potential use. This study was d
Publicado em: 2008
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10. Uso de agregados reciclados de concreto em blocos de alvenaria estrutural / Use of recycled concrete aggregates in blocks of structural masonry
The main goal of the present research project was the evaluation of recycled concrete aggregates incorporation in structural concrete blocks of three different levels of compressive strength (4,5 MPa, 8,0 MPa and 12,0 MPa). The study was developed in four stages. The first stage analyzed the physical properties of fine and coarse concrete aggregates derived
Publicado em: 2007
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11. Análise estrutural de lajes pré-moldadas produzidas com concreto reciclado de construção e demolição.
The use of recycled concrete with substitution of the natural aggregate by recycled aggregate from construction and demolition waste (CDW) is one of the most promising alternatives for reduction of the environmental impact of the construction industry. However, for this solution be applied in wide scale it is necessary that new material can be used in the pr
Publicado em: 2007
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12. Propriedade de concretos produzidos pela subtituição de agregados naturais por rejeitos de usinas concreteiras
Slurries containing Portland cement concrete are generated from concrete mixer trucks and other concrete-coated equipment in concrete washout area. This work presents some of the results of an investigation on the possible applications of aggregates from recycled concrete mixer trucks waste (WCA) in concrete. The investigation was carried out using factorial
Publicado em: 2007