Effectiveness of Rice Husk and Sugarcane Bagasse Ashes Blended Cement in Improving Properties of Concrete
- 1 Civil Engineering Department, Federal University of Technology, Akure, Nigeria
- 2 Civil Engineering Department, Federal University of Technology, Akure, Nigeria
- 3 Civil Engineering Department, Federal University of Technology, Akure, Nigeria
Abstract
This paper emphasized the use of rice husk ash (RHA) and sugarcane bagasse ash (SBA) in improving concrete properties, and also their combined effects on workability, compressive strength, flexural strength, permeability and water absorption capacity. Thus, in this study, the water-to-cement ratio was kept constant (0.45), the binder materials content for conventional mix was kept constant at (350 kg/m 3 ) and the partial replacement of cement with RHASBA used was 5%, 10%, 15%, 20%, 25%, and 30% by weight of cement. The maximum compressive strength was noted at a 5% replacement level of cement with RHASBA. The Results showed that the optimum replacement of cement with RHASBA in concrete was 5%, which was found to increase the compressive strength by 15%, flexural strength by 3.4%, lowered permeability by 50%, lowered sorptivity by 11.34% as compared with control concrete at 90 days of curing time. The micro-structural test results further established that RHA and SBA have a high content of SiO 2 which enables them to be more reactive in concrete and also revealed that the presence of RHASBA depletes Ca(OH) 2 crystals, converting it into CaH 2 O 4 Si (C-S-H gel) leading to the strengthening of bond within the concrete matrix.
- Jung, S.H., Saraswathy, V., Karthick, S., Kathirvel, P. and Kwon, S.-J. (2018) Microstructure Characteristics of Fly Ash Concrete with Rice Husk Ash and Lime Stone Powder. International Journal of Concrete Structures and Materials, 12, Article No. 17. https://doi.org/10.1186/s40069-018-0257-4
- Ye, G., Huang, H. and Van Tuan, N. (2018) Rice Husk Ash. In: De Belie, N., Soutsos, M. and Gruyaert, E., Eds., “Properties of Fresh and Hardened Concrete Containing Supplementary Cementitious Materials”: State-of-the-Art Report of the RILEM Technical Committee 238-SCM, Working Group 4, Springer International Publishing, Cham, 283-302.
- Ganesan, K., Rajagopal, K. and Thangavel, K. (2008) Rice Husk Ash Blended Cement: Assessment of Optimal Level of Replacement for Strength and Permeability Properties of Concrete. Construction and Building Materials, 22, 1675-1683. https://doi.org/10.1016/j.conbuildmat.2007.06.011
- Hossain, K.M.A. and Anwar, M.S. (2014) Performance of Rice Husk Ash Blended Cement Concretes Subjected to Sulfate Environment. Magazine of Concrete Research, 66, 1237-1249. https://doi.org/10.1680/macr.14.00108
- Raheem, A.A. and Kareem, M.A. (2017) Chemical Composition and Physical Characteristics of Rice Husk Ash Blended Cement. International Journal of Engineering Research in Africa, 32, 25-35. https://doi.org/10.4028/www.scientific.net/JERA.32.25
- Bahurudeen, A., Kanraj, D., Dev, V.G. and Santhanam, M. (2015) Performance Evaluation of Sugarcane Bagasse Ash Blended Cement in Concrete. Cement and Concrete Composites, 59, 77-88. https://doi.org/10.1016/j.cemconcomp.2015.03.004
- Jagadesh, P., Ramachandramurthy, A., Murugesan, R. and Prabhu, T.K. (2019) Adaptability of Sugar Cane Bagasse Ash in Mortar. Journal of the Institution of Engineers (India): Series A, 100, 225-240. https://doi.org/10.1007/s40030-019-00359-x
- Bin Muhit, S., Ahmed, S., Zaman, Md.F. and Ullah, Md.S. (2018) Effects of Multiple Supplementary Cementitious Materials on Workability and Strength of Lightweight Aggregate Concrete. Jordan Journal of Civil Engineering, 12, 109-124.
- NIS 444, Part 1 (2003) Composition, Specifications and Conformity Criteria for Common Cements. Nigeria Industrial Standards Center.
- ASTM, C136-06 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates. ASTM International, West Conshohocken.
- BS 882 (1992) Aggregates from Natural Sources. British Standard, London.