The use of different types of natural coarse aggregates in SCC design

dc.creatorTobes, Juan Manuel
dc.creatorLopez, Anahi
dc.creatorGiaccio, Graciela Marta
dc.creatorZerbino, Raul Luis
dc.date2010-01
dc.date.accessioned2023-08-30T23:48:20Z
dc.date.available2023-08-30T23:48:20Z
dc.identifierhttp://hdl.handle.net/11336/198847
dc.identifierTobes, Juan Manuel; Lopez, Anahi; Giaccio, Graciela Marta; Zerbino, Raul Luis; The use of different types of natural coarse aggregates in SCC design; ad-media GmbH; PHi-Planta de Hormigón Internacional; 1; 1-2010; 66-71
dc.identifier1862-0027
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8542799
dc.descriptionThe shape and texture of coarse aggregate affect the properties of fresh and hardened concrete. However, there is limited information about the effects of aggregate characteristics on self-compactability, which can be relevant in countries like Argentina, where a large variety of aggregates is available even in the same region. This paper analyzes the effect of shape and texture of coarse aggregate on self-compacting concrete (SCC) properties. Four different types of coarse aggregate were selected: granitic crushed stone, quartzitic crushed stone, basaltic crushed stone and siliceous river gravel. The granitic and basaltic crushed stone presents irregular shape, rough texture and low absorption. The quartzitic crushed stone also has irregular shape and rough texture, but it has high water absorption. Finally, the natural siliceous river gravel is composed by strong particles with smooth surface and low porosity. Slump-flow, V-funnel and J-Ring tests were carried out in order to evaluate SCC properties. The influence of the mixing volume was also studied. The homogeneity of the coarse aggregate distribution was evaluated along vertical cuts on 1 m in height tubes and along a U-tube with 1.80 m height, measuring the ultrasonic pulse velocity and the unit weight in different sections. In addition, the compressive strength and modulus of elasticity were determined. From the results, was concluded that, as expected, the shape and texture of coarse aggregate modify the flowability, but also the mixing energy can strongly affect the viscosity of SCC.
dc.descriptionFil: Tobes, Juan Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Área Tecnología del Hormigón; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.descriptionFil: Lopez, Anahi. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.descriptionFil: Giaccio, Graciela Marta. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; Argentina
dc.descriptionFil: Zerbino, Raul Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherad-media GmbH
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectSelf compacting concrete
dc.subjectCoarse aggregates
dc.subjectMixture design
dc.subjecthttps://purl.org/becyt/ford/2.1
dc.subjecthttps://purl.org/becyt/ford/2
dc.titleThe use of different types of natural coarse aggregates in SCC design
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución