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Transformation of physical characteristics in fired clay bricks by adopting waste-based fluxing agent
Mazlini Mazlan1, Rabiatul Adawiyah Abdul Wahab2, Nur Syafiqa Hamiza Sanusi3, Nur Hanis Syazwani Mohd Nasli4, Nurul Athirah Balqis Junaizi5.
The current practices in the recent development of fired clay brick (FCB) by
adopting waste materials have tremendously reduced the usage of the
primary source of FCB, which is clay soil (CS). In this study, the main
objective is to reduce the utilisation of CS as the main component in the FCBmaking process. Other waste materials such as soda lime silica (SLS) glass
bottles, and sea shells (SS) were also added into the precursor admixtures.
The admixtures containing CS, SLS and SS were mixed according to the
empirical formula of (1-x)[40SLS - 60CS]: x[SS] = 0, 10, 20, 30, 40 wt.%. A
batch of 40 g mixture was prepared, and 21% water was added. The
admixtures were mixed, moulded into a rectangular brick shape, and dried
before the sintering process at 850 °C. The physical properties of the FCB
were investigated as a function of the SS content in the form of apparent
density, linear shrinkage, loss of ignition and plasticity. As a result, the
apparent density and loss of ignition of the FCB increased from 1.91 gcm-3
to 2.31 gcm-3 and 10.60 % to 20.81%, respectively. The linear shrinkage and
plasticity percentage decreased from 2.50% to 2.27% and 11.01% to 8.70%
with an increase of SS content. This study has uncovered the above findings,
and has demonstrated a promising discovery of the SS as a possible
substitute in FCB.
Affiliation:
- Universiti Teknologi MARA, Cawangan Perak, Kampus Tapah , Malaysia
- Universiti Teknologi MARA, Cawangan Perak, Kampus Tapah , Malaysia
- Universiti Teknologi MARA, Cawangan Perak, Kampus Tapah , Malaysia
- Universiti Teknologi MARA, Cawangan Perak, Kampus Tapah , Malaysia
- Universiti Teknologi MARA, Cawangan Perak, Kampus Tapah , Malaysia
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