Authors: Young Kil Kim, Yeon Gil Jung, Jin Bo Song, Min Chul Shin, Hee Soo Lee
Abstract: Wall and floor tiles were fabricated by a dry pressing method using waste glass and clay. The properties of the tiles such as absorption, bulk density, porosity, compressive strength, and abrasion loss were investigated with the firing temperature and glass contents. The properties were improved by increasing the firing temperature and glass contents. These properties, except the compressive strength, tended to be saturated from the glass contents of 70 wt % in the case of 1050 °C. The compressive strength showed the maximum values at the glass contents of 70 wt% and then decreased with increasing glass contents. The optimal properties obtained in the tiles were the water absorption of about 0.9 %, the bulk density of about 2.3 g/cm3, the apparent porosity of about 2.1 %,
the compressive strength of about 210 MPa, and the abrasion loss of about 0.022 g, when the composition containing the glass of 70 wt% was fired at 1050°C. These results are better than the properties of commercial clay tiles for easy melting and densification of glassy phase in the tiles.
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Authors: Young Kil Kim, Yeon Gil Jung, Jun Baek Song, Min Chul Shin, Hee Soo Lee
Abstract: Wall and floor tiles were fabricated by a dry pressing method using waste glass and clay.
The properties of the tiles such as absorption, bulk density, porosity, compressive strength, and
abrasion loss are investigated with the firing temperature and glass content. The properties are
improved with increasing both the firing temperature and glass content. These properties, except the
compressive strength, tend to be saturated from the glass contents of 70 wt % in the case of 1050 .
The compressive strength shows the maximum values at the glass contents of 70 wt% and then which
are decreased with increasing the glass contents. The optimal properties obtained in the tiles are the
water absorption of about 0.9 %, the bulk density of about 2.3 g/cm3, the apparent porosity of about
2.1 %, the compressive strength of about 210 MPa, and the abrasion loss of about 0.022 g, when the
composition containing the glass of 70 wt% is fired at 1050. These results are better than the
properties of commercial clay tiles, due to easy melting and densification of glassy phase in the tiles.
755
Authors: Erika Furlani, Gabriele Tonello, Stefano Maschio, Eleonora Aneggi, Dino Minichelli, Sergio Bruckner, E. Lucchini
Abstract: The sintering behaviour of several ceramics prepared using a previously selected mixture of incinerated paper mill sludge and glass cullet which was blended with 10, 20, 30 and 40 wt% of some natural clayey materials has been studied. Three natural commercial product were used: a red clay, a yellow clay and a kaolin. Mixtures were blended by wet attrition milling, dried, sieved, pressed into specimens and then fired for 1 h at temperatures ranging from 1040 to 1140 °C. The resulting materials were characterized by water absorption, shrinkage and crystallographic composition. It was observed that materials containing kaolin display the best overall behaviour independently of the quantity of kaolin introduced. Conversely the optimal sintering temperature, and consequently the best properties of materials prepared using red or yellow clay was found above 1080 °C and depends of their specific composition being affected by the amount of clay added.
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Authors: Nur Azam Badarulzaman, M.A.M. Amiroll, Mohamad Zaky Noh, S.S. Jikan, Z.M. Yunus
Abstract: This research is conducted in order to determine the best composition of alumina-cullet ceramic with the addition of mica powder. The alumina-cullet-mica composites (ACMCs) were produced by using powder compaction method. All raw materials used such as alumina, cullet and mica for fabricating the samples were first mixed, compacted and finally the samples have to undergo the sintering process. It is observed from the physical, mechanical and morphological analyses that the properties of ACMCs are highly dependable on the mica content.
919
Authors: Parinya Chakartnarodom, Pitcharat Ineure
Abstract: The aim of this work is to study the recycling of glass cullet (waste glass), fly ash, and rice husk ash as the foam glass, a porous construction material having high compressive strength but low density, which are similar to the light weight brick. The foam glasses were prepared by mixing the ground glass cullet/ash mixtures with calcium carbonate (foaming agent) at 1 wt% and sodium silicate solution (binder) at 10 wt%, and then compacted into the rectangle shapes (30 cm × 30 cm × 7cm) which were fired at 650 °C for 30 min, and then for 1 hour at 750, 800, 850, or 900 °C. The sources of glass cullet were art glass factory and glass window industry. The percentages of ash in the ground glass cullet/ash (fly ash or rice husk ash) mixtures were 20, 40, and 60 wt%. The results showed that the foam glass that was made from 80wt% window glass/ 20wt% fly ash and fired at 750 °C had the most suitable properties for being produced commercially because it had good alkaline resistant, and the compressive strength and degree of water absorption better than the light weight brick (G2-type and G4-type autoclaved aerated concrete) while the density was similar to G2-type but lower than G4-type. The compressive strength, density, and degree of water absorption of this foam glass were 59.9 kg/cm2, 421 kg/m3, and 2.1 % respectively. Furthermore, as of September 2013, the total production cost (materials, labor, energy, etc.) of this foam glass is about 16 baht per piece (20 cm × 60 cm × 7.5 cm) which is 12.5 to 43.75% lower than the wholesale price of a light weight brick (18-23 baht per piece for G2-type and G4-type autoclaved aerated concrete).
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