Lightweight Materials Obtained by Utilization of Agricultural Waste

Lightweight ceramic materials in the form of bricks and blocks are widely used in modern construction. They may be obtained by adding of rice husk, rye straw, etc, as porous forming materials. Rice husk is a major by-product of the rice milling industry. Its utilization as a valuable product has always been a problem. Various technologies for utilization of rice husk through biological and thermochemical conversion are being developed. The purpose of this work is to develop lightweight ceramic materials with clay matrix and filler of rice husk and examine their main physicomechanical properties. The results obtained allow to suppose that the materials synthesized on the basis of waste materials can be used as lightweight materials for construction purpose.

Authors:

• Bogdan Bogdanov
• Irena Markovska
• Yancho Hristov
• Dimitar Georgiev

Keywords:

• lightweight ceramic materials
• properties
• agro-waste

References:

[1] Emmanuel Ogo Onche, Benjamin Iyenagbe Ugheoke, Sunday Albert
Lawal, and Utibe Martin Dickson, "Effect of Rice Husk and Diatomite
on the Insulating Properties of Kaolin - Clay Firebricks", Leonardo
Electronic Journal of Practices and Technologies, vol. 11, pp. 81-
90, 2007.
[2] M. A. Rahman, "Properties of clay-sand-rice husk ash mixed
bricks",Int. J. Cement Comp. Lightweight Concrete, vol. 9, pp.105 108,
1987.
[3] G. Marahleh, "Production of Light Weight Ceramics Teils from Local
Materials", Am. J. Applied Sci., vol. 2 pp. 778 - 83, 2005.
[4] J.D. Jegatheeswaran, and R. Malathy, "Utilization of papermill sludge
in manufacturing of bricks - An environmental friendly
approach",Pollution Research, vol. 30, pp. 299- 303, 2011.
[5] Lyubcho A. L.yubchev and Irena G. Markovska, "Waste materials
for preparation of porous corundum - matrix composites", International
symposium "Ecology ÔÇÿ93", Bourgas, September 9-11, 1993, p.32 -37.
[6] V. Loryuenyong, T. Panyachai, K. Kaewsimork, and C. Siritai,
"Fabrication of lightweight clay bricks from recycled glass
wastes",Ceramic Transactions, vol. 210, pp. 213-219, 2010.
[7] C. Sujivorakul, C. Jaturapitakkul, and A.Taotip, Utilization of flay
ash, rice husk ash and Palm Oil Fuel Ash in Glass Fiber-Reinforced
Concrete", J. Mater. Civil Eng., vol. 23, pp. 1281-1288, 2011.
[8] A. Ashfaq, A., Saadia, "Utilization of agriculture waste for removal of
heavy metal ions through biosorption", Ecology, Environment and
Conservation, vol. 17, pp.353-357, 2011.
[9] A. Sharma and T.Rajeswara Rao, "Kinetics of pyrolysis of rice
husk",Bioresource Technol. vol. 67 pp. 53-59, 1999.
[10] D. M. Ibrahim and M. Helmy, "Crystallite growth of rice husk ash
silica", Thermochim. Acta vol. 45 pp. 79 - 85, 1981
[11] M. Devan, Proc. Nat. Workshop on rice husk for Energy, Vigian,
Bhawan, New Delhi, 1982, p. 35.
[12] A. Chakraverty, P. Mishra, and H.D. Banerjee, "Investigation of
thermal decomposition of rice husk", Thermochim. Acta, vol. 94 pp.
267 - 275, 1985.
[13] H. D. Banerjee, S. Sen, and H. N. Acharya," Investigation on the
production of silicon from rice husks by the magnesium method",
Mater. Sci. Eng., vol. 5, pp.173-179, 1982
[14] M. A. Hamad, "Thermal characteristics of rice hulls", J. Chem. Tech
Biotechnol., vol.31, pp. 624 -626, 1981.
[15] L. T.Vlaev, I. G. Markovska and L.A. Lyubchev, "Non - isothermal
kinetics of pyrolysis of rice husk", Thermochimica Acta, vol. 406, ÐÇp.
1 - 7, 2003.
[16] L.T.Vlaev, I.G. Markovska, and L.A. Lyubchev, "Kinetics
compensation effect at thermal degradation of rice husk",
Oxid. commun., vol. 27, pp.444 - 452, 2004.
[17] E. A. Gerasimov, Technology of ceramics products, Technics, Sofia,
2003