Browsing by Author "Sutas Janbuala"

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    Effect of bagasse and bagasse ash levels on properties of pottery products
    (Elsevier Ltd, 2018) Sutas Janbuala; Mana Eambua; Arpapan Satayavibul; Watcharakhon Nethan; S. Janbuala; Faculty of Science, Suan Dusit University, Bangkok, 10300, Thailand; email: sutas_jan@dusit.ac.th
    The objective of this research was to study the effect of bagasse and bagasse ash on the properties of pottery products. In the experiments, we varied the composition of clay by adding 2%, 4%, 6%, and 8% by weight of bagasse or by adding 5%, 10%, 15%, and 20% by weight of bagasse ash and maintained the temperature of the furnace at 900 �C. The results indicate that the best composition is obtained by adding 10% by weight of bagasse ash, which yielded pottery products with improved strength (20.10 MPa), density (1.41 g/cm3), water absorption (13.91%), and porosity (25.73%). In comparison, the composition of clay with 4% by weight of bagasse yielded strength, density, water absorption, and porosity of 10.12 MPa, 1.53 g/cm3, 19.95%, and 30.17%, respectively. � 2018 The Authors
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    Effect of rice husk ash to mechanical properties of clay bricks
    (2013) Sutas Janbuala; Udomsak Kitthawee; Mana Aermbua; Pitak Laoratanakul
    This research explored the effect of rice husk ash on the mechanical properties of clay bricks, for example, strength, density, and water absorption. Rice husk ash, varying 0 to 5% by weight, was added. The results showed that porosity increased when adding rice husk. Adding 3% rice husk ash by weight showed the best mechanical brick properties, with 13.50 MPa of compressive strength, 1.69 g/cm3 of density, and 11.50% of water absorption. © (2013) Trans Tech Publications, Switzerland.
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    Effect of sludge from water treatment plant on properties of pottery
    (Trans Tech Publications Ltd, 2014) Sutas Janbuala; Wittawat Ratanathavorn; Mana Aermbua; Arpapan Satayavibul; Udomsak Kitthawee
    This research aims to study the effect of sludge from water treatment plants on the properties of pottery such as density, compressive strength, water absorption, and porosity.The composition of sludge from water treatment plants added to the clay varies, at percentages of 0%, 10%, 20%, 30%, 40%, and 50%, controlled by weight. The results showed that the composition of 10% by weight of sludge from the water treatment plant yields the ultimate pottery properties, with 12.63 MPa of compressive strength, 1.85 g/cm3 of density, 14.24% of water absorption, and 26.34% of porosity. © (2014) Trans Tech Publications, Switzerland.
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    Effects of rice husk ash and bagasse ash on properties of expended clay
    (American Institute of Physics Inc., 2018) Sutas Janbuala; Mana Eambuala; Adchara Ardpasa
    This study investigated the effect of rice husk ash or bagasse ash on the properties of expanded clay, for the experiment, the raw materials included clay with added rice husk ash or bagasse ash (0-30 % by volume) that were Fired at variable temperatures of 900 and 1000 0C. The results show that. The added rice husk ash and firing temperature of 900 0C showed the best properties for density, porosity, water absorption, conductor electricity and pH, equal to 1.28 g/cm3 21.10%, 35.60%, 0.14 dS/m and 6.97, respectively. The added bagasse ash and firing temperature of 900 0C showed the best properties for density, porosity, water absorption, conductor electricity and pH, equal to 1.61 g/cm3 34.70 %, 25.30%, 0.13 dS/m and 7.50 respectively. First, second, and third level headings (first level heading). � 2018 Author(s).
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    Mechanical properties and thermal conductivity of lightweight clay bricks fabricated with a powdered marble dust additive
    (Trans Tech Publications Ltd, 2018) Sutas Janbuala; Mana Eambua; Arpapan Satayavibul; Watcharakhon Nethan; S. Janbuala; Faculty of Science, Suan Dusit University, Bangkok, Thailand; email: sutas_jan@dusit.ac.th
    The objective of this study was to recycle powdered marble dust to improve mechanical properties and thermal conductivity of lightweight clay bricks. Varying amounts of powdered marble dust (10, 20, 30, and 40 vol.%) were added to a lightweight clay brick at the firing temperatures of 900, 1000, and 1100 �C. When higher quantities of powdered marble dust were added, the values of porosity and water absorption increased while those of thermal conductivity and bulk density decreased. The decrease in apparent porosity and water absorption were also affected by the increase in firing temperature. The most desirable properties of the clay bricks were obtained for the powdered marble dust content of 40 vol.% and firing temperature 900�C: bulk density of 1.20 g/cm3, compressive strength 9.2 MPa, thermal conductivity 0.32 W/m.K, and water absorption 22.5%. � 2018 Trans Tech Publications, Switzerland.