Article (Scientific journals)
Particle size distribution of limestone fillers: granulometry and specific surface area investigations
Courard, Luc; Michel, Frédéric
2014In Particulate Science and Technology, 32 (4)
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Keywords :
Limestone fillers; particle size distribution; specific surface area; image analysis; BET adsorption; Blaine
Abstract :
[en] Mineral fillers can be defined as “inert materials included in a mix design for some useful purpose”. They can be added to compounds in order to complete a large variety of final properties without increasing costs or to improve specific characteristics like hardness, brittleness, impact strength, compressive strength, softening point, fire resistance, surface texture, electrical conductivity, …etc. In Belgium, locally available limestone fillers are specifically very well-adapted for the optimisation of particle packing and flow behaviour of cementitious pastes in concrete mixes. Limestone fillers may be easily characterized in terms of chemical and mineralogical properties. These properties are fundamental for the study of the behaviour of concrete mixes in fresh state and for understanding interactions existing at the level of the Interfacial Transition Zone between aggregates and cement paste. These properties are however insufficiently discriminant and particle size, as well as shape distribution, seem to have a potential influence on physical phenomena which happen during the setting process. The aim of this paper is to compare five major techniques used to quantify the size and the shape of limestone fillers particles: laser diffraction scattering, wet sieving and image analysis for particle size measurement and BET adsorption and Blaine permeability methods for specific surface area.
Disciplines :
Civil engineering
Author, co-author :
Courard, Luc  ;  Université de Liège - ULiège > Département ArGEnCo > Matériaux de construction non métalliques du génie civil
Michel, Frédéric ;  Université de Liège - ULiège > Département ArGEnCo > Matériaux de construction non métalliques du génie civil
Language :
English
Title :
Particle size distribution of limestone fillers: granulometry and specific surface area investigations
Publication date :
2014
Journal title :
Particulate Science and Technology
ISSN :
0272-6351
eISSN :
1548-0046
Publisher :
Taylor & Francis, United Kingdom
Volume :
32
Issue :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 01 January 2014

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