Electric arc furnace (EAF) steel slag added ceramic tile- effect of different compositions and firing temperature

dc.contributor.authorNursyahirah Ismail
dc.date.accessioned2021-07-23T04:18:32Z
dc.date.available2021-07-23T04:18:32Z
dc.date.issued2016-06
dc.description.abstractElectric Arc Furnace (EAF) steel slag is the by-product of steel making and huge amount of it is currently being dumped and not utilized.Recycling approach by incorporating EAF slag into ceramic tile is much better and greener as it can resolve problems associated with dumping of industrial wastes and help preserve the natural resources needed for ceramic tile production. The objective of this project is to study the effect of different composition of silica and feldspar of EAF slag added ceramic tile fired at different firing temperature to the properties of the ceramic tiles. EAF slag from Southern Steel Berhad (SSB) was crushed into micron size and mixed with ball clay, silica and feldspar at different compositions. The mixture was milled for 5 hours at 40 revolutions per minute (rpm). The slurry was dried and the dried cake mixture was obtained. The cake mixture was crushed and the powder was granulated with 5-6% water. The powder then was compacted and fired at different firing temperatures. The fired ceramic tile was characterized in terms of linear shrinkage, water absorption, modulus of rupture (MOR) and phase analysis. Results obtained show that 50 wt. % EAF slag, 40 wt. % ball clay, 5 wt. % feldspar and 5 wt. % silica fired at 1137°C has the highest MOR value. This is most likely related to the highest total amount of phase anorthite and wollastonite in the tile and also to the lowest porosity value showed by this composition. The low percentage of porosity also contributed to lowest water absorption (0.28 %) and this is comparable to that of by commercial heavy duty tile.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/13826
dc.language.isoenen_US
dc.titleElectric arc furnace (EAF) steel slag added ceramic tile- effect of different compositions and firing temperatureen_US
dc.typeOtheren_US
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