Effect of Uncontrolled Burning Rice Husk Ash in Foamed Concrete

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Recently, foamed concrete has become a popular construction material that can be used in wide range of constructions application. Whilst the Rice Husk Ash (RHA) as agro-waste is contain high amount of silicon dioxide. RHA is produced in significant amount every year from agriculture countries. RHA has potential as a material to produce foamed concrete. In this research RHA has been used as a replacement for fine aggregate which used in construction as ordinary concrete material. In this study, foamed concrete with target density 1400, 1600 and 1800 kg/m3 has been produced. The compressive strength of foamed concrete with RHA has been tested. Concrete with Ratio 1:3 of RHA/Sand has higher compressive strength than ratios 3:1 and 2:2 of RHA/sand for every density. XRD and XRF test has been used to determinate chemical composition and crystalline structure of RHA. The result showed that RHA is an amorphous material which amorphous is important thing to pozzolanic process when hydration of cement paste. SEM and EDS test has been conducted to determine microstructure and chemical composition on microstructure of RHA foamed concrete. Amorphous RHA incorporating cement paste produces pozzolanic reaction. It is reduces the porosity and width of interfacial zone in such a way the density is increase.

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769-775

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December 2012

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[1] Aldridge, D. Introduction To Foamed Concrete : What, Why, How? in Used of Foamed Concrete in Construction. 2005. International Confrence of University of Dundee, Scotland UK: Thomas Telford.

Google Scholar

[2] Jones, M.R. and A. McCarthy. Behviour and assesment of Foamed Concrete for Concrtuction Applications. in Use of Foam Concrete in Construction. 2005. International Concference of University of Dundee, Scotland, UK.: Thomas Telford.

Google Scholar

[3] Kearsley, E.P. and P.J. Wainwright, The effect of high fly ash content on the compressive strength of foamed concrete. Cement and Concrete Research, 2001. 31(1): pp.105-112.

DOI: 10.1016/s0008-8846(00)00430-0

Google Scholar

[4] Nambiar, E.K.K. and K. Ramamurthy, Influence of filler type on the properties of foam concrete. Cement and Concrete Composites, 2006. 28(5): pp.475-480.

DOI: 10.1016/j.cemconcomp.2005.12.001

Google Scholar

[5] Lee, Y.L. and Y.T. Hung. Exploitation of Solid Wastes in Foamed Concrete Challenges Ahead. in Use of Foamed Concrete in Construction. 2005. International Confrence of University of Dundee, Scotland, UK Thomas Relford.

Google Scholar

[6] AI-Khalaf, M.N. and H.A. Yousif, Use of Rice Husk Ash in Concrete. The International Journal of Cement Composites and Lightweight Concrete, 1984. 6.

DOI: 10.1016/0262-5075(84)90019-8

Google Scholar

[7] Ramezaniapour, A.A., M. Mahdi Khani, and G. Ahmadibeni, The effect of Rice Husk Ash on Mechanical Properties and Durability of Suistainable Concretes. International Journal of Civil Engineering, 2009. 7: pp.83-91.

Google Scholar

[8] BSEN-197-1, Cement —Part 1: Composition, specifications and conformity criteria for common cements. (2000).

Google Scholar

[9] BSEN-882, Specification for aggregates from natural sources for concrete. (1992).

Google Scholar

[10] Chareerat, T., et al. Composition and Microstructure of Fly Ash Geopolymer Containing Rice Husk Ash. in Technology and Innovation for Sustainable Development Conference (TISD2008). 2008. Faculty of Engineering, Khon Kaen University, Thailand.

Google Scholar

[11] BSEN-450-1, Fly ash for concrete — Part 1: Definition, specifications and conformity criteria. (2005).

Google Scholar

[12] Jones, M.R. and A. McCarthy, Utilising unprocessed low-lime coal fly ash in foamed concrete. Fuel, 2005. 84(11): pp.1398-1409.

DOI: 10.1016/j.fuel.2004.09.030

Google Scholar

[13] Jones, M.R. and A. McCarthy, Heat of hydration in foamed concrete: Effect of mix constituents and plastic density. Cement and Concrete Research, 2006. 36(6): pp.1032-1041.

DOI: 10.1016/j.cemconres.2006.01.011

Google Scholar

[14] BS1881, BSI, Part 116-Method for determination of compressive strength. (1983).

Google Scholar

[15] Odler, I., Special Inorganic Cement. Modern Concrete Technology Series, ed. A. Bentur and S. Mindess. Vol. 8. 2000, New York: E & FN Spon. 162-163.

Google Scholar

[16] Ismail, M.S. and A.M. Waliuddin, Effect of Rice Husk on High Strength Concrete. Construction and Building Materials, 1996. 10(7): pp.521-526.

DOI: 10.1016/0950-0618(96)00010-4

Google Scholar

[17] Zhang, M.H., R. Lastra, and V.M. Malhotra, Rice-husk ash paste and concrete: Some aspects of hydration and the microstructure of the interfacial zone between the aggregate and paste. Cement and Concrete Research, 1996. 26(6): pp.963-977.

DOI: 10.1016/0008-8846(96)00061-0

Google Scholar