Utilization of high-inerts lignite fractions in cement raw meal

Tsimas, S; Kakali, G; Merkos, P; Moutsatsou, A

dc.contributor.author	Tsimas, S	en
dc.contributor.author	Kakali, G	en
dc.contributor.author	Merkos, P	en
dc.contributor.author	Moutsatsou, A	en
dc.date.accessioned	2014-03-01T01:13:29Z
dc.date.available	2014-03-01T01:13:29Z
dc.date.issued	1997	en
dc.identifier.issn	0949-0205	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12509
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0031379542&partnerID=40&md5=29e0c584b304f2e4e6062ba63f946b66	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.title	Utilization of high-inerts lignite fractions in cement raw meal	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	This paper comprises the study of the partial replacement of Portland cement raw meal by rejected lignite fractions after their treatment by the method of Selective Reduction of Size (SRS). SRS is a process developed in the authors' laboratory for physically upgrading lignites, and leads to two granulometric fractions. The fines are enriched in inorganic material which has a mineralogical and chemical composition very similar to that of cement raw meal. The calorific value of the organic fraction that it contains can also help to meet the energy demand of the burning process. The results are supported by the use of DSC, TG and XRD methods as well as by the determination of the free CaO content. It is concluded that the rejected lignite can replace up to 40 % w/w of the cement raw meal. The burning of the organic material promotes the decomposition of the limestone and the early sintering reactions.	en
heal.publisher	BAUVERLAG GMBH	en
heal.journalName	ZKG International	en
dc.identifier.isi	ISI:A1997YA12100012	en
dc.identifier.volume	50	en
dc.identifier.issue	8	en
dc.identifier.spage	464	en
dc.identifier.epage	467	en