Strength Properties of Untreated Coal Bottom Ash as Cement Replacement

https://doi.org/10.22146/jcef.47657

Noraziela Syahira Baco(1), Shahiron Shahidan(2*), Sharifah Salwa Mohd Zuki(3), Noorwirdawati Ali(4), Mohamad Azim Mohammad Azmi(5)

(1) Jing sheng Construction & Engineering Sdn Bhd Lot PT807, No.13, Jalan 20, Kampung Cheras Baru 56100 Kuala Lumpur, MALAYSIA
(2) Department of Civil Engineering, Faculty of Civil & Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Pt Raja BP Johor Malaysia
(3) Department of Civil Engineering, Faculty of Civil & Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400, Batu Pahat, Johor, MALAYSIA
(4) Department of Civil Engineering, Faculty of Civil & Environmental Engineering, Universiti Tun Hussein Onn Malaysia, 86400, Batu Pahat, Johor, MALAYSIA
(5) Center for Diploma Studies, Department of Civil Engineering, Universiti Tun Hussein Onn Malaysia, Pagoh Higher Education HUB, KM1, Jalan Panchor,84600 Pagoh Muar Johor, MALAYSIA
(*) Corresponding Author

Abstract


Coal Bottom Ash (CBA) is a mineral by-product of thermal power plants obtained from the combustion of coal. In many countries, CBA wastes are identified as hazardous materials. The utilization of CBA can help in alleviating environmental problems; thus, this research was carried out to explore the possibility of its use as cement replacement in concrete manufacturing. Presently, In Malaysia, research that concerns about the use of CBA as cement replacement is very limited. Therefore, this study was aimed to investigate the properties of CBA as cement replacement and to identify the optimum percentage of untreated CBA as cement replacement. The CBA used in this study were taken from the Tanjung Bin power plant. In this research, the amount of CBA in the concrete mixture varied from 20% to 40% to replace cement. The properties of concrete containing CBA as cement replacement was examined through slump test, sieve analysis, concrete compressive strength test and splitting tensile strength test. The compressive strength test and splitting tensile strength test were performed at 7 and 28 days of curing time. Based on this research, it can be concluded that the optimum percentage of CBA as cement replacement is 25% for a curing time of both 7 and 28 days with the concrete compression strength of 45.2 MPa and 54.6 MPa, respectively. Besides, the optimum percentage for tensile strength is also at 25% CBA for a curing period of both 7 and 28 days with the tensile strength of 2.91 MPa and 3.28 MPa, respectively. 


Keywords


Coal Bottom Ash; cement replacement; Untreated; Concrete Material; Power Plant

Full Text:

PDF


References

Abubakar, A.U. and Baharudin, K.S., 2012. Potential Use of Malaysian Thermal Power Plants. International Journal of Sustainable construction Engineering &Technology, 3(2), pp.25–37.

Andrade, L.B., Rocha, J.C. and Cheriaf, M., 2009. Influence of coal bottom ash as fine aggregate on fresh properties of concrete. Construction and Building Materials, 23(2), pp.609–614.

Bai, Y., Darcy, F. and Basheer, P.A.M., 2005. Strength and drying shrinkage properties of concrete containing furnace bottom ash as fine aggregate. Construction and Building Materials, 19(9), pp.691–697.

Cai, Ghafoori, N. and Yuzheng, 1998. Laboratory-Made RCC containing Dry Bottom Ash: Part I—Mechanical Properties. ACI Materials Journal, 95(2).

García Arenas, C., Marrero, M., Leiva, C., Solís-Guzmán, J. and Vilches Arenas, L.F., 2011. High fire resistance in blocks containing coal combustion fly ashes and bottom ash. Waste Management, 31(8), pp.1783–1789.

Khan, R.A. and Ganesh, A., 2016. The effect of coal bottom ash (CBA) on mechanical and durability characteristics of concrete. J. Build. Mater. Struct, 3, pp.31–42.

Marto, A. and Tan, C.S., 2016. Properties of Cola Bottom Ash from Power Plants in Malaysia and Its Suitability as Geotechnical Engineering Material. Jurnal Teknologi, 78(8–5), pp.1–10.

Singh, M. and Siddique, R., 2016. Effect of coal bottom ash as partial replacement of sand on workability and strength properties of concrete. Journal of Cleaner Production, 112, pp.620–630.

Sua-Iam, G. and Makul, N., 2014. Utilization of high volumes of unprocessed lignite-coal fly ash and rice husk ash in self-consolidating concrete. Journal of Cleaner Production, 78, pp.184–194.



DOI: https://doi.org/10.22146/jcef.47657

Article Metrics

Abstract views : 270 | views : 216

Refbacks

  • There are currently no refbacks.




Copyright (c) 2020 Journal of the Civil Engineering Forum


The content of this website is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
ISSN 5249-5925 (online) | ISSN 2581-1037 (print)
Jl. Grafika No.2 Kampus UGM, Yogyakarta 55281
Email : jcef.ft@ugm.ac.id
Web Analytics JCEF Stats