Development of an Amorphous Silica from Rice Husk Waste
This article presents a study on the development of amorphous silica from Rice Husk (RH) waste. For ascertaining the optimum proportion of temperature and burning duration required for the development of an amorphous silica from RH waste, different Rice Husk Ash (RHA) samples, i.e. RHA (500oC-1.5hr), RHA (500oC-2hr), RHA (600oC-1.5hr), RHA (600oC-2hr), RHA (700oC-1.5hr), RHA (700oC-2hr), RHA (800oC-1.5hr), RHA (800oC-2) and RHA (900oC-1hr) were extracted by burning the husk at different temperatures and durations. Energy Dispersive Spectrometry (EDS) analysis was carried out for ascertaining the existence of main and insignificant elements in the RHAs samples and it was noticed that the extracting of silicon dioxide (SiO2) was exclusively dependent on the temperature and burning duration. After EDS, X-ray Diffraction (XRD) analysis was used to find out the crystalline and non-crystalline nature of obtained silica at different temperatures and burning durations. Through EDS and XRD, it has been found that that the extracted Rice Husk Ash at the temperature of 800oC for 2hr is rich in amorphous SiO2 content, i.e. 91.74% which meets the requirements of ASTM 618-03 for a pozzolanic material.
Keywords:amorphous silica, strength activity index, XRD, RHA, cement replacement
S. R. Kamath, A. Proctor, “Silica gel from rice hull ash: preparation and characterization”, Cereal Chemistry, Vol. 75, pp. 484-487, 1998 DOI: https://doi.org/10.1094/CCHEM.1922.214.171.1244
R. Zerbino, G. Giaccio, G. C. Isaia, “Concrete incorporating rice-husk ash without processing”, Construction and Building Materials, Vol. 25, No. 1, pp. 371-378, 1, 2011 DOI: https://doi.org/10.1016/j.conbuildmat.2010.06.016
V. M. Malhotra, P. Kumar Mehta, Pozzolanic and cementitious materials Vol. 1, Taylor & Francis, 1996
Q. Yu, K. Sawayama, S. Sugita, M. Shoya, Y. Isojima, “The reaction between rice husk ash and Ca(OH)2 solution and the nature of its product”, Cement and Concrete Research, Vol. 29, No. 1, pp. 37-43, 1999 DOI: https://doi.org/10.1016/S0008-8846(98)00172-0
J. James, M. S. Rao, “Silica from rice husk through thermal decomposition”, Thermochimica Acta, Vol. 97, pp. 329-336, 1986 DOI: https://doi.org/10.1016/0040-6031(86)87035-6
A. A. Boateng, D. A. Skeete, “Incineration of rice hull for use as a cementitious material: the guyana experience”, Cement and Concrete Research, Vol. 20, No. 5, pp. 795-802, 1990 DOI: https://doi.org/10.1016/0008-8846(90)90013-N
M. Anwar, T. Miyagawa, M. Gaweesh, “Using rice husk ash as a cement replacement material in concrete”, Waste Management Series, Vol. 1, pp. 671-684, 2000 DOI: https://doi.org/10.1016/S0713-2743(00)80077-X
J. Sousa Coutinho, “The combined benefits of CPF and RHA in improving the durability of concrete structures”, Cement and Concrete Composites, Vol. 25, No. 1, pp. 51-59, 2003 DOI: https://doi.org/10.1016/S0958-9465(01)00055-5
M. F. M. Zain, M. N. Islam, F. Mahmud, M. Jamil, “Production of rice husk ash for use in concrete as a supplementary cementitious material”, Construction and Building Materials, Vol. 25, No. 2, pp. 798-805, 2011 DOI: https://doi.org/10.1016/j.conbuildmat.2010.07.003
C. L. Hwang, S. Chandra, “The use of rice husk ash in concrete”, in Waste Materials Used in Concrete Manufacturing, William Andrew Publishing/Noyes, Norwich, NY, pp. 184-234, 1997 DOI: https://doi.org/10.1016/B978-081551393-3.50007-7
M. L. Gambhir, Concrete technology, Tata McGraw-Hill Education, 2004
ASTM, C305, Standard practice for mechanical mixing of hydraulic cement pastes and mortars of plastic consistency, Annual book of ASTM standards, ASTM International, PA, 2006
ASTM, C109/C109M-16a. Standard test method for compressive strength of hydraulic cement mortars (Using 2-in. or [50-mm] cube specimens), ASTM International, PA, 2002
V. Vaibhav, U. Vijayalakshmi, S. Mohana Roopan, “Agricultural waste as a source for the production of silica nanoparticles”, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 139, pp. 515-520, 2015 DOI: https://doi.org/10.1016/j.saa.2014.12.083
J. de C. Izidoro, D. A. Fungaro, F. S. dos Santos, S. Wang, “Characteristics of Brazilian coal fly ashes and their synthesized zeolites”, Fuel Processing Technology, Vol. 97, pp. 38-44, 2012 DOI: https://doi.org/10.1016/j.fuproc.2012.01.009
M. Rozainee, S. P. Ngo, A. A. Salema, K. G. Tan, M. Ariffin, Z. N. Zainura, “Effect of fluidising velocity on the combustion of rice husk in a bench-scale fluidised bed combustor for the production of amorphous rice husk ash”, Bioresource Technology, Vol. 99, No. 4, pp. 703-713, 2008 DOI: https://doi.org/10.1016/j.biortech.2007.01.049
D. G. Nair, A. Fraaij, A. A. K. Klaassen, A. P. M. Kentgens, “A structural investigation relating to the pozzolanic activity of rice husk ashes”, Cement and Concrete Research, Vol. 38, No. 4, pp. 861-869, 2008 DOI: https://doi.org/10.1016/j.cemconres.2007.10.004
S. Huang, S. Jing, J. Wang, Z. Wang, Y. Jin, “Silica white obtained from rice husk in a fluidized bed”, Powder Technology, Vol. 117, No. 3, pp. 232-238, 2001 DOI: https://doi.org/10.1016/S0032-5910(00)00372-7
ASTM, C430. Standard Test Method for Fineness of Hydraulic Cement by the 45-Μm (No. 325) Sieve, ASTM International, PA, 2003
L. A. Bui, C. Chen, C. Hwang, W. Wu, “Effect of silica forms in rice husk ash on the properties of concrete”, International Journal of Minerals, Metallurgy, and Materials, Vol. 19, No. 3, pp. 252-258, 2012 DOI: https://doi.org/10.1007/s12613-012-0547-9
P. K. Mehta,“Rice Husk Ash-A Unique Supplementary Cementing Material”, in Advances in Concrete Technology, CANMET, 1992
C. Y. Kawabata, H. Savastano Jr, J. Sousa-Coutinho, “Rice husk derived waste materials as partial cement replacement in lightweight concrete”, Ciencia e Agrotecnologia, Vol. 36, No. 5, pp. 567-578, 2012 DOI: https://doi.org/10.1590/S1413-70542012000500010
R. Madandoust, R. Ghavidel, “Mechanical properties of concrete containing waste glass powder and rice husk ash”, Biosystems Engineering, Vol. 116, No. 2, pp. 113-119, 2013 DOI: https://doi.org/10.1016/j.biosystemseng.2013.07.006
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