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Characterization of fine aggregates in concrete by different experimental approaches
He, Huan; Courard, Luc; Pirard, Eric et al.
2011In Proceedings 13 Int. Congress for Stereology
 

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Keywords :
fine aggregate; laser diffraction; image analysis
Abstract :
[en] Being its major component, aggregate can occupy up to three-quarter of the volume of concrete. The structure of aggregate formed in hardened state impacts largely on mechanical and durability properties of concrete. On another hand, physical characteristics of aggregate are primarily assumed to be relevant to granular behavior of aggregate. Therefore, characterization of aggregate is of high relevance to concrete studies. In this study, different types of fine aggregate used in concrete, namely river sand and crushed limestone, are selected for morphological characterization. Traditional sieve analysis and laser diffraction method are employed for separation and size analysis of specimens. Different types of fine aggregate samples with comparable size ranges are then analyzed by two advanced dry (static) and wet (dynamic) image analysers. These new analysers are especially suitable for characterization of fine particles, which is difficult by traditional image analysis equipments. Size and shape characteristics of different fine aggregates will be revealed by different experimental methods. The results on different parameters for shape characterization will be compared and discussed
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
He, Huan;  Université de Liège - ULiège > ArGEnCo > GeMMe
Courard, Luc  ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Pirard, Eric  ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Géoressources minérales & Imagerie géologique
Michel, Frédéric ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Language :
English
Title :
Characterization of fine aggregates in concrete by different experimental approaches
Publication date :
October 2011
Event name :
13 International Congress for Stereology
Event organizer :
International Society for Stereology
Event place :
Beijing, China
Event date :
19-23 Oct 2011
Audience :
International
Main work title :
Proceedings 13 Int. Congress for Stereology
Available on ORBi :
since 06 November 2011

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