Water retention properties of perlite as a material with crushable soft particles

Jamei, M; Guiras, H; Chtourou, Y; Kallel, A; Romero, E; Georgopoulos, I

dc.contributor.author	Jamei, M	en
dc.contributor.author	Guiras, H	en
dc.contributor.author	Chtourou, Y	en
dc.contributor.author	Kallel, A	en
dc.contributor.author	Romero, E	en
dc.contributor.author	Georgopoulos, I	en
dc.date.accessioned	2014-03-01T01:37:32Z
dc.date.available	2014-03-01T01:37:32Z
dc.date.issued	2011	en
dc.identifier.issn	0013-7952	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21549
dc.subject	Evolution of water retention characteristics	en
dc.subject	Particle crushing	en
dc.subject	Perlite	en
dc.subject	Predicting	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Artificial material	en
dc.subject.other	Double porosity	en
dc.subject.other	Experimental techniques	en
dc.subject.other	Grain size distribution	en
dc.subject.other	Partially saturated	en
dc.subject.other	Particle crushing	en
dc.subject.other	Perlite	en
dc.subject.other	Predicting	en
dc.subject.other	Soft particles	en
dc.subject.other	Unsaturated materials	en
dc.subject.other	Water retention	en
dc.subject.other	Water retention curve	en
dc.subject.other	Water retention properties	en
dc.subject.other	Weibull theory	en
dc.subject.other	Crushing	en
dc.subject.other	Grain size and shape	en
dc.subject.other	Textile blends	en
dc.subject.other	Weibull distribution	en
dc.subject.other	Materials	en
dc.subject.other	crushing	en
dc.subject.other	experimental study	en
dc.subject.other	grain size	en
dc.subject.other	loading	en
dc.subject.other	numerical model	en
dc.subject.other	perlite	en
dc.subject.other	size distribution	en
dc.subject.other	water retention	en
dc.subject.other	Weibull theory	en
dc.title	Water retention properties of perlite as a material with crushable soft particles	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.enggeo.2011.06.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.enggeo.2011.06.005	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The purpose of this study is to present and discuss the experimental results of the water retention properties of an unsaturated material with crushable soft particles. Perlite was used as an artificial material due to its highly crushable behaviour on loading. In this study an approach including crushing and soft behaviour of the particles and its effect on water retention characteristics is specially proposed. The crushing effect of perlite grains is shown by the evolutions of the grain size distribution curves. The usefulness of the Weibull theory for perlite material, in order to predict the grain-size curves after the crushing, is highlighted. Using different experimental techniques on partially saturated perlite, a first insight into the water retention characteristics of the material is presented. The effect of the double porosity on water retention curve of the material is also highlighted. The evolution of the water retention characteristics with crushing is analysed, by using the Aray and Paris model in conjunction with the Weibull distribution predictions. Predicted and experimental results are compared and discussed. (C) 2011 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Engineering Geology	en
dc.identifier.doi	10.1016/j.enggeo.2011.06.005	en
dc.identifier.isi	ISI:000296309300012	en
dc.identifier.volume	122	en
dc.identifier.issue	3-4	en
dc.identifier.spage	261	en
dc.identifier.epage	271	en