Incorporation of granite sludge in ceramic body formulations

Subject Areas :

S.Amir Rasti-Alhosseini ¹ (دانشگاه آزاد اسلامی واحد الیگودرز)
Hamid Abdoli ² (دانشگاه صنعتی شریف دانشکده مهندسی و علم مواد)
Saeed Baghshahi ³ (دانشگاه بین المللی امام خمینی دانشکده فنی قزوین)
Esmaeel Darvishi ⁴ (دانشگاه آزاد اسلامی واحد الیگودرز)

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2010-12-22

Keywords: environment, Granite tiles, Sludge, Granite stone,

Abstract :

Granite process industries generate a large amount of wastes, which pollute and damage the environment. Thiswork aims to characterize and evaluate the possibilities of using the granite sawing wastes in ceramic industry.Granite wastes in the form of sludge, obtained from granite cutting industry. Their characterization was carriedout with the determination of physical and chemical composition by DTA, TGA, and XRD. Then they wereincorporated in the batch formulations of porcelain tiles in order to evaluate the suitability of addition of wastesin ceramic compositions. The specimens were also tested to determine the water absorption and three pointsbending flexural strength. Microstructural evaluation was carried out by scanning electron microscopy. Theresults showed that reformulated ceramic bodies had technological characteristics similar to those ofconventional granite tiles. The amount of the granite waste contribution in the laboratory and manufactory scaleswas 30 and 4-8 wt.%, respectively.