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CONICET Digital
Article . 2012
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Propiedades de agregados obtenidos por combinación de arena de río con agregados finos reciclados

Authors: Sosa, Maria Eva; Zega, Claudio Javier; Di Maio, Angel Antonio;

Propiedades de agregados obtenidos por combinación de arena de río con agregados finos reciclados

Abstract

La utilización de agregados reciclados en la construcción está fundamentada principalmente en motivos de índole medioambiental, debido a la generación de un elevado volumen de desechos que hacen necesario la disposición de grandes superficies para el vertido de los mismos. En este trabajo se presentan los resultados obtenidos en la evaluación de diferentes propiedades tales como granulometría, densidad, absorción, material que pasa el tamiz IRAM 75 μm y durabilidad por ataque con sulfato de sodio, determinadas en agregados finos constituidos por combinación de arena silícea de río y distintos porcentajes de agregados finos reciclados (20, 30 y 40% en peso) provenientes de la trituración de hormigones. Las propiedades obtenidas en cada combinación de agregados fueron comparadas con las determinadas sobre combinaciones de arena de río y los mismos porcentajes de arena natural de trituración granítica. De los resultados obtenidos surge que las combinaciones con agregados finos reciclados presentan mayor absorción, perdida por ataque con sulfato de sodio y material que pasa el tamiz IRAM 75 μm, y menor densidad que las mezclas con arena de trituración granítica, presentando sendos tipos de mezclas curvas granulométricas similares.

The use of recycled aggregates in construction is mainly based on environmental reasons, due to the generation of a high volume of waste that makes it necessary to dispose of large areas for dumping them. This paper presents the results obtained in the evaluation of different properties such as granulometry, density, absorption, material that passes the IRAM 75 μm sieve and durability by attack with sodium sulfate, determined in fine aggregates made up of a combination of silica sand of river and different percentages of recycled fine aggregates (20, 30 and 40% by weight) from the crushing of concrete. The properties obtained in each combination of aggregates were compared with those determined on combinations of river sand and the same percentages of natural granitic sand. From the results obtained, it appears that the combinations with fine recycled aggregates present higher absorption, loss due to attack with sodium sulfate and material that passes the IRAM 75 μm sieve, and lower density than the mixtures with granitic crushing sand, presenting both types of mixtures. similar granulometric curves.

Fil: Zega, Claudio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Área Tecnología del Hormigón; Argentina

Fil: Sosa, Maria Eva. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Área Tecnología del Hormigón; Argentina

Fil: Di Maio, Angel Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina

Country
Argentina
Keywords

agregado fino reciclado, Sulphate attack, Ataque por sulfatos, Ingeniería, ataque por sulfatos, Recycled fine aggregate, absorción, crushing sand, Crushing sand, Arena de trituración, Absorption, AGREGADO FINO RECICLADO, arena de trituración, ABSORCIÓN, ARENA DE TRITURACIÓN, recycled fine aggregate, Agregado fino reciclado, Hormigón, sulphate attack, https://purl.org/becyt/ford/2.1, ATAQUE POR SULFATO, https://purl.org/becyt/ford/2, absorption, Absorción

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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!
0
Average
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