Effect of Using a Combination of 50% Coal Dust 50 % Course Sand as Filler in Bituminous Mix Design
Authors
Assistant Professor, Department of Civil Engineering, Bangladesh Army University of Engineering and Technology (Bangladesh)
Assistant Professor, Department of Civil Engineering, Bangladesh Army University of Engineering and Technology (Bangladesh)
Graduate Student, Department of Civil Engineering, Bangladesh Army University of Engineering and Technology (Bangladesh)
Graduate Student, Department of Civil Engineering, Bangladesh Army University of Engineering and Technology (Bangladesh)
Graduate Student, Department of Civil Engineering, Bangladesh Army University of Engineering and Technology (Bangladesh)
Article Information
DOI: 10.51244/IJRSI.2025.120800128
Subject Category: Civil Engineering
Volume/Issue: 12/8 | Page No: 1458-1467
Publication Timeline
Submitted: 2025-08-07
Accepted: 2025-08-15
Published: 2025-09-13
Abstract
Bituminous concrete, also referred to as asphaltic concrete, represents one of the most sophisticated and high-cost types of flexible pavement layers utilized in surface courses. Given its elevated cost and performance demands, bituminous mixtures must be meticulously designed to satisfy standards for structural integrity and durability. The mixture typically includes well-graded coarse aggregates, fine aggregates, and mineral filler, all bound together with bitumen. The mineral filler component, which passes through a 0.075 mm sieve, significantly influences the mechanical performance of the mix. An increase in filler content generally enhances Marshall Stability. According to the Asphalt Institute, 4 to 8% filler is recommended in asphalt concrete [1]. Traditional fillers like cement, limestone, and granite powder are not economically feasible or widely available in Bangladesh.
In this context, a 50:50 combination of coal dust and coarse sand is considered a viable alternative, as both are inexpensive and readily accessible. This study evaluates the effect of this blended filler on the behavior of bituminous mixtures. It compares the performance of mixes containing a coal dust–coarse sand blend with that of mixes using conventional filler types such as fine sand with stone dust in Bangladesh. The evaluation was conducted using the Marshall mix design approach. The Marshall stability values for mixtures containing fine sand with stone dust and the coal dust–coarse sand blend were measured at 2.15 kN, and 1.79 kN respectively, all of which surpass the minimum threshold of stipulated by Marshall Design criteria. These results indicate that a 50% coal dust and 50% coarse sand combination can serve as an effective and economical filler in asphaltic concrete.
Keywords
Bituminous concrete, Filler, Coal Dust, Coarse Sand, Marshall Design
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References
1. Kadeyali: Principles and practice of Highway Engineering.3rdedition (1997). [Google Scholar] [Crossref]
2. Katamine NM: Phosphate waste in mixtures to improve their deformation. J Transport Eng 2000; 126:382–9. [Google Scholar] [Crossref]
3. Asi Ibrahim, Assa’ad Abdullah: Effect of Jordanian oil shale fly ash on asphalt mixes. J Mater CivEng 2005; 17:553–9. [Google Scholar] [Crossref]
4. Lin Deng-Fong, Lin Jyh-Dong, Chen Shun-Hsing: The application of baghouse fines in Taiwan. Resour Conserv Recycle 2006; 46:281–301. [Google Scholar] [Crossref]
5. Sung Do Hwang, Hee Mun Park, Suk keun Rhee: A study on engineering characteristics of asphalt concrete using filler with recycled waste lime. Waste Manage 2008; 28:191–9. [Google Scholar] [Crossref]
6. Xue Yongjie, Hou Haobo, Zhu Shujing, Zha Jin: Utilization of municipal solid waste incineration ash in stone mastic asphalt mixture: pavement performance and environmental impact. Constr Build Mater 2009; 23:989–96. [Google Scholar] [Crossref]
7. Huang Baoshan, Dong Qiao, Burdette Edwin G: Laboratory evaluation of incorporating waste ceramic materials into Portland cement and asphaltic concrete. Constr Build Mater 2009; 23:3451–6. [Google Scholar] [Crossref]
8. Kalkattawi, H.R: Effect of Filler on the Engineering Properties of Asphalt Mixes, M.S. Thesis, King Abdul Aziz University, Jeddah, Saudi Arabia. (1993) [Google Scholar] [Crossref]
9. Anderson, D. A.: Guidelines for use of dust in hot mix asphalt concrete mixtures.”Proc. Association of Asphalt Paving Technologists, 56, Association of Technologists, St. Paul, MN, 492–516, 1987 Asphalt Paving [Google Scholar] [Crossref]
10. Elliot, R.P., Ford, M.C., Ghanim, M., and Tu, Y.F. :Effect of aggregate gradation variation on asphalt concrete mix properties, Transportation Research Record, 1317, National Research Council, Washington, D.C., 1991 [Google Scholar] [Crossref]
11. Kandhal, P.S., Lynn, C.Y., and Parker, F.: Characterization tests for mineral fillers related to performance of asphalt paving mixtures, NCAT Rep. No. 98-2, 1998 [Google Scholar] [Crossref]
12. Bahia, H.U., Zhai, H., Bonnetti, K.,and Kose, S.: Non-linear visco-elastic and fatigue properties of asphalt binders, Journal of Association of Asphalt Paving Technology, 68, 1-34,1999 [Google Scholar] [Crossref]
13. Geber, R. and Gomze, L.A.: Characterization of mineral materials as asphalt fillers, Material Science Forum,659, 471-476, 2010 [Google Scholar] [Crossref]
14. Vavrik, W.R., Pine, W.J., Carpenter, S.H., and Bailey, R.: Bailey method for gradation selection in hot-mix asphalt mixture design, Transportation Research Board, National Research Council, Washington, D.C., USA., 2002 [Google Scholar] [Crossref]
15. Zulkati, A., Diew, W. Y. and Delai, D.S. :Effects of Fillers on properties of Asphalt-Concrete Mixture, Journal of Transportation Engineering, ASCE, Vol. 138, No. 7, 902-910.,2012 [Google Scholar] [Crossref]
16. Taylor, R.: Surface interactions between bitumen and mineral fillers and their effects on the rheology of bitumen-filler mastics. Ph.D. thesis, Univ. of Nottingham, UK., 2007 [Google Scholar] [Crossref]
17. Lesueur, D.: The colloidal structure of bitumen: consequences on the rheology and on the mechanisms of bitumen modification. Adv.Colloid Interface Sci., 145(1–2), 42–82., 2009 [Google Scholar] [Crossref]
18. Bahia, H. U., Faheem, A., Hintz, C., Al-Qadi, I., Reinke, G., and Dukatz, E.: Test methods and specification criteria for mineral filler used in HMA.”NCHRP Research Results Digest, 357, Transportation Research Board, Washington, DC., 2011 [Google Scholar] [Crossref]
19. American Society for Testing and Materials (ASTM): Road and Paving Materials; Vehicle Pavement System, Annual Book of ASTM Standards, Section 4, Volume 04.03,2003. [Google Scholar] [Crossref]