Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study of crushed aggregate shape
AbstractAggregate shape is a key parameter that influences mixtures properties. This paper accounts for a closely controlled experimental program aimed at clarifying the variation of aggregate shape with two parameters, gyratory crusher setting and feed grading. The results show that crusher setting has a significant influence on the flakiness index of produced elementary size fractions, which is not the case for spread size fractions. Moreover, a variation of the proportions of feed fraction constituents has no significant influence on the flakiness index of produced aggregates, whereas a variation of the spreading or size of the feed fraction has. Regarding the shape characteristics of particles, it has been observed that the dimensions of a particle were not related, but flat particles are elongated, and vice versa. Finally, it has been observed that flakiness index varies conversely with the size of produced aggregate.
Experimental study of crushed aggregate shape
AbstractAggregate shape is a key parameter that influences mixtures properties. This paper accounts for a closely controlled experimental program aimed at clarifying the variation of aggregate shape with two parameters, gyratory crusher setting and feed grading. The results show that crusher setting has a significant influence on the flakiness index of produced elementary size fractions, which is not the case for spread size fractions. Moreover, a variation of the proportions of feed fraction constituents has no significant influence on the flakiness index of produced aggregates, whereas a variation of the spreading or size of the feed fraction has. Regarding the shape characteristics of particles, it has been observed that the dimensions of a particle were not related, but flat particles are elongated, and vice versa. Finally, it has been observed that flakiness index varies conversely with the size of produced aggregate.
Experimental study of crushed aggregate shape
Bouquety, M.N. (Autor:in) / Descantes, Y. (Autor:in) / Barcelo, L. (Autor:in) / de Larrard, F. (Autor:in) / Clavaud, B. (Autor:in)
Construction and Building Materials ; 21 ; 865-872
10.12.2005
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Aggregate , Shape , Quarry , Crushers , Rock type , Feed grading , Setting , Flakiness index , Flatness factor , Elongation factor
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