Fast firing of tiles containing paper mill sludge, glass cullet and clay.
The paper describes results obtained in the development of a previous research. We study here, in fast firing, the sintering behaviour and measure some properties of tiles containing a mixture of 60 wt% of paper mill sludge and 40 wt% of glass cullet. The behaviour of this material is compared to those displayed by materials obtained by the same mixture added with 10, 20 and 30 wt% of a natural red clay. In parallel, the same properties are measured also on a reference blend, which is presently used to produce commercial tiles. We show that powders containing 60 wt% of paper sludge and 40 wt% of glass cullet to which 30 wt% of clay is added give rise to materials that display a stable sintering process and have good hardness and strength and therefore could be used for the industrial production of tiles.
Maschio
S
S
Università di Udine, Dipartimento di Scienze e Tecnologie Chimiche, Via del Cotonificio 108, Udine 33100, Italy. stef.maschio@uniud.it
Furlani
E
E
Tonello
G
G
Faraone
N
N
Aneggi
E
E
Minichelli
D
D
Fedrizzi
L
L
Bachiorrini
A
A
Bruckner
S
S
D000538:Aluminum Silicates / Q000737:chemistry*; D000077215:Clay; D003252:Construction Materials / Q000032:analysis*; D005898:Glass; D006244:Hardness; D006358:Hot Temperature; D007220:Industrial Waste; D010209:Paper; D013718:Tensile Strength; D018505:Waste Management / Q000379:methods*
D000538:Aluminum Silicates; D007220:Industrial Waste; D000077215:Clay