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Long Term Effect of Rice Husk Ash on Strength of Mortar

Authors: A. Md. Harunur Rashid B. Md. Keramat Ali Molla C. Tarif Uddin Ahmed


This paper represents the results of long term strength of mortar incorporating Rice Husk Ash (RHA). For these work mortar samples were made according to ASTM standard C 109/C. OPC cement was partially replaced by RHA at 0, 10, 15, 20, 25 and 30 percent replacement level. After casting all samples were kept in controlled environment and curing was done up to 90 days. Test of mortar was performed on 3, 7, 28, 90, 365 and 700 days. It is noticed that OPC mortar shows better strength at early age than mortar having RHA but at 90 days and onward the picture is different. At 700 days it is observed that mortar containing 20% RHA shows better result than any other samples.

Keywords: OPC, RHA, replacement level, long term, strength.

Digital Object Identifier (DOI):

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[1] World Energy Counc. Efficient Use of Energy Utilizing High Technology: An Assessment of Energy Use in Industry and Buildings. London: World Energy Counc.,1995.
[2] Marland, G.; Boden, T.; Global CO2 Emissions from Fossil-Fuel Burning,Cement Manufacture, and Gas Flaring: 1751-2000. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, TN, 2003.
[3] Cembureau. "World Cement Market in Figures 1913/1995" World Stat. Rev. No.18. Brussels: Cembureau.1998
[4] Global Cement Report. (2002).
[5] Cangiano S, Castaldi G, Costa U, Tognon GP. 1992. Modern composite cements: enhanced technical properties, lower energy demand. Proc. Eur. Semin. Improved Technol. for Rational Use of Energy in the Cem. Ind., Berlin, 26-28 Oct.
[6] Lea FM: The Chemistry of Cement and concrete, Edward Arnold Ltd., London, 1956.
[7] Isaia, G.C., A.L.G. Gastaldini and R. Moraes, " Physical and Pozzolanic action of mineral additions on the mechanical strength of highperformance concrete. Cement Concrete Compos., 25: 2003, pp 69-76.
[8] Roy, D.M., "Advanced cement systems including CBC, DSP, MDF, In: 9th International Congress on the chemistry of Cement, New Delhi, Cement Building Material., 4: 1992,357-380.
[9] Deepa,G. nair, K.S. Jagadish and A Fraaij, " reactive pozzolans from rice-husk ash: an alternative to cement for rural housing. Cement Concrete res., 36; 2006, pp 1062-1071.
[10] Malhotra, V.M., and N.J. Carino, ÔÇÿCRC Handbook on Non-Destructive Testing of Concrete. CRC Press, Florida, USA, 1991, pp: 169-188.
[11] Tay, J.H., ÔÇÿAsh from oil-palm waste as concrete material. J.Material. Civil Engg., ASCE, 2: 1990, pp 94-105.
[12] Visvesvaraya, H.C., "Recycling of agricultural wastes with special emphasis on rice-husk ash, Use of vegetable plants and fibers as building materials. Joint Symposium RILEM/CTB/NCCL, Baghdad, 1986,pp: 1-22.
[13] Liborio J.B.L., Souza M.F., Batista p.s., Regiani I., Souza D.P., 2000 " Rice Hull-Derived silica: applications in Portland Cement and Mullite whiskers, Materials Research 2000: 3(2) 25-30.
[14] Sensale G.R., 2006, "Strength development of concrete with rice husk ash, Cement and Concrete Composites 2006; 28(2): 158-160.
[15] Chengzhi, Z., Aiqin, W., Mingshu, T. and Xiaoyu, Liu, "The Filling Role of Pozzolanic Material", Cement and Concrete Research, Vol.26, No.6, pp.943-947,1996.
[16] R. Sumrerng, P. Chindarprasirt, R. Mahachai,," Effect of grinding on chemical and physical properties of rice husk ash" International Journal of Minerals, metallurgy and Materials,vol16, number2, 2009, pp 242- 247.
[17] S. Rukzon, and P. Chindarprasirt, 2006," Strength of tenary blended cement mortar containing Portland cement, rice husk ash and fly ash. J. Eng. Inst. Thailand, 17(2006) p33.
[18] ASTM C 109, Standard test method for compressive strength of hydraulic cement mortar (using 2 in or (50 mm) cube specimens), Annual Book of ASTM Standard 04.01.2001, p-83.
[19] ASTM C 109, Standard specification for coal fly ash and raw or calcined natural pozzolan for use as a mineral admixtures in concrete, Annual Book of ASTM Standard 04.02.2001, p-310.
[20] P. Chindaprasirt, S. Rukzon, and V. Sirivivatnanon, 2008, "Resistance of chloride penetration of blended Portland cement mortar containing palm oil fuel ash, rice husk ash and fly ash,Constr. Build. Mater. 22 no- 5, 2008, p. 932.
[21] S. Rukzon and P. Chindaprasirt, "Mathemetical model of strength and porosity of ternary blend Portland rice husk ash and fly ash cement mortar" Comput. Concr., 2008, 5 No.1 p.75.