Research Article
Synthesis and Characterization of β‒Wollastonite from Limestone and Rice Husk as Reinforcement Filler for Clay Based Ceramic Tiles
@INPROCEEDINGS{10.1007/978-3-030-43690-2_53, author={Chirotaw Getem and Nigus Gabbiye}, title={Synthesis and Characterization of β‒Wollastonite from Limestone and Rice Husk as Reinforcement Filler for Clay Based Ceramic Tiles}, proceedings={Advances of Science and Technology. 7th EAI International Conference, ICAST 2019, Bahir Dar, Ethiopia, August 2--4, 2019, Proceedings}, proceedings_a={ICAST}, year={2020}, month={6}, keywords={Ceramic tile Clay β‒wollastonite Limestone Rice husk}, doi={10.1007/978-3-030-43690-2_53} }- Chirotaw Getem
Nigus Gabbiye
Year: 2020
Synthesis and Characterization of β‒Wollastonite from Limestone and Rice Husk as Reinforcement Filler for Clay Based Ceramic Tiles
ICAST
Springer
DOI: 10.1007/978-3-030-43690-2_53
Abstract
This work focuses on the synthesis of β‒Wollastonite and utilized as reinforcement filler for ceramic tile. β‒Wollastonite was synthesized by taking the raw limestone as a lime precursor and rice husk as a source of silica. The lime and silica powders were mixed with 1:1 w/w ratio and then calcined at 900 °C for 4 h. The ceramic tiles were prepared by solid slip casting method for a wide range of β‒wollastonite to clay ratio (5, 15 and 25%), particle size of 63, 75 and 125 µm at firing temperature of 950, 1000 and 1050 °C. The results show that a minimum linear shrinkage of 1.25% was recorded at 25% β‒wollastonite-clay ratio with a particle size of 125 µm at a temperature of 950 °C. The ceramic tiles fabricated were exhibited minimum water absorption of 1.35% and maximum compressive strength of 38.35 MPa at 25% of β‒wollastonite to clay ratio, particle size of 63 µm and 1050 °C firing temperature. Similarly, the maximum acid resistance of 99.985% was found on 75 and 125 µm particle sizes with a 25% ratio of β-Wollastonite and 950 °C firing temperature.
