Use of secondary mineralizing raw materials in cement production. The case study of a stibnite ore

Kakali, G; Tsivilis, S; Kolovos, K; Choupa, K; Perraki, T; Perraki, M; Stamatakis, M; Vasilatos, Ch

dc.contributor.author	Kakali, G	en
dc.contributor.author	Tsivilis, S	en
dc.contributor.author	Kolovos, K	en
dc.contributor.author	Choupa, K	en
dc.contributor.author	Perraki, T	en
dc.contributor.author	Perraki, M	en
dc.contributor.author	Stamatakis, M	en
dc.contributor.author	Vasilatos, Ch	en
dc.date.accessioned	2014-03-01T01:19:40Z
dc.date.available	2014-03-01T01:19:40Z
dc.date.issued	2003	en
dc.identifier.issn	0167-577X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15656
dc.subject	Antimony	en
dc.subject	Cement	en
dc.subject	Ceramics	en
dc.subject	Hydration	en
dc.subject	Minerals	en
dc.subject	Raw mix	en
dc.subject	Sintering	en
dc.subject	Stibnite	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Differential thermal analysis	en
dc.subject.other	Hydration	en
dc.subject.other	Raw materials	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Sintering	en
dc.subject.other	Textures	en
dc.subject.other	Cement pastes	en
dc.subject.other	Cements	en
dc.title	Use of secondary mineralizing raw materials in cement production. The case study of a stibnite ore	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0167-577X(03)00007-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0167-577X(03)00007-7	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	It has been found that certain foreign elements, despite their low concentration in cement raw mix, may accelerate the sintering reactions and improve the reactivity of the cement raw mix. The subject of this paper is to investigate the possibility to introduce small amounts of minerals, containing these elements, in the cement raw mix. The mineral stibnite was selected in order to introduce Sb and S in the cement raw mix. One reference and four modified mixtures, prepared by mixing the reference sample with 0.5, 1.0, 1.5 and 2.0% w/w of the above mineral, were studied. The effect on the reactivity of the raw mix was evaluated on the basis of the unreacted lime content in samples sintered at 1000, 1100, 1200, 1300, 1350, 1400 and 1450 degreesC. The sintering reactions in all samples were recorded by means of differential thermal analysis (DTA). Scanning electron microscopy (SEM) was used in order to examine the texture of the clinker and study the distribution of the foreign elements in its main phases. Finally, the hydration rate in the cement pastes and some cement properties were measured. It was concluded that the added mineral improves the burnability of the cement raw mixture without affecting considerably the hydration rate and cement properties. (C) 2003 Elsevier Science B.V All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Materials Letters	en
dc.identifier.doi	10.1016/S0167-577X(03)00007-7	en
dc.identifier.isi	ISI:000183479800023	en
dc.identifier.volume	57	en
dc.identifier.issue	20	en
dc.identifier.spage	3117	en
dc.identifier.epage	3123	en