期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2018
卷号：9
期号：1
页码：370-375
DOI：10.26872/jmes.2018.9.1.40
出版社：University of Mohammed Premier Oujda
摘要：This paper presents the results of the chemical and morphological characterization of aresidue produced during the manufacture of the porcelain stoneware tiles, and analternative for its recycling as cement mortar addition material. The residue studied wasprovided by a factory in Argentine that produces more than 30 ton/month of dry material,which is currently discarded without a recovery destination. The material was dried in anelectric oven at 60°C during 180 min in order to remove surface moisture and break offthe agglomerations. The characterization of the residue includes X-Ray fluorescence todetermine chemical composition, X-Ray diffraction to determine crystallographic phases,determination of particle size by sieve analysis, specific gravity analysis, anddetermination of pozzolanic activity by conductivimetric test. Finally, the waste was usedas supplementary material for mortar in partial replacement of Portland cement, in a rateof 15 % and 30 % of substitution. The compression strength of mortars was evaluated at7, 28, 60 and 120 days for probes manufactured using a proportion of cement: sand of 1:3on weight with water/cement ratio of 0.5 v/v and in probes with cement without sand. Thesubstitution of 15 % of cement for the waste showed acceptable results of mechanicalresistance, but at 30 % the influence was significant with a detrimental effect, howeverthe strengths keeps inside the limits of the norms. We conclude that the waste can beadded to mortars up to 15 % without influence on the properties of mortars, adding valueto this residue and avoiding the cost of sanitary burial.
关键词：Valorisation of waste;Porcelain stoneware tile;Supplementary materials;for cement
