top of page

A New Framework for Determining the Gradation of Asphalt Mixtures

 

Farzaneh Tahmoorian*, Central Queensland University, Australia

Yahya Aliabadizadeh, The Catholic University of America, USA

*Corresponding Author, f.tahmoorian@cqu.edu.au, Received: Oct. 2022, Accepted: Nov. 2022

 

ABSTRACT: Strength and rutting resistance as well as durability are the main quality measures for any asphalt mix. While the strength and resistance of the asphalt mixture to permanent deformation are controlled by the aggregate interlock and aggregate packing, the durability of asphalt mixture depends on adequate volumetric characteristics and film thickness of asphalt mixture. Accordingly, providing an adequate interlock between aggregates and the aggregate packing is of high importance in designing a new asphalt mixture in order to produce desirable volumetric characteristics in asphalt mixture. A new framework for asphalt mixture gradation has been developed and designed following an intensive review of the various currently used approaches. The new framework considers all the controlling factors in the aggregate gradation design for optimum gradation of the asphalt mixtures.  Satisfactory interlocking between aggregate particles, proper skeleton within the asphalt mixture, and acceptable volumetric properties are the main parameters to be considered for optimum gradation design for asphalt mix. The framework provides a systematic approach for the gradation process starting from the concentration at different sieves (φn  and φ(n+1)) to finally account for the FA  Ratio ≤ 0.5. Other parameters including FAc ratio, CA ratio and are also considered through the current framework.

 

Keywords: Asphalt, Gradation, Packing Theory, Pavement, Aggregate

5. References

 

[1]   Bourbie, T., Coussy, O. and Zinszner. B. (1987), “Acoustics of Porous Media”. Gulf Publishing Co., Houston, Tex., 1987.

[2]   Brown, E.R., Kandhal, P.S., Roberts, F.L., Kim, Y.R., Lee D-Y, Kennedy, T.W. (2009), “Hot mix asphalt materials, mixture design, and construction”, 3rd Edition, Lanham, Maryland: NAPA Research and Education Foundation.

[3]   Bruno, L.; Parla, G.; Celauro, C. (2012), “Image analysis for detecting aggregate gradation in asphalt mixture from planar images”. Constr. Build. Mater., 28, 21–30.

[4]   Coenen, A.R.; Kutay, M.E.; Sefidmazgi, N.R.; Bahia, H.U. (2012), “Aggregate structure characterisation of asphalt mixtures using two-dimensional image analysis”. Road Mater. Pavement Des., 13, 433–454.

[5]   Das, P.K., Birgisson, B., Jelagin, D., Kringos, N. (2014), “Investigation of the asphalt mixture morphology influence on its ageing susceptibility”, Journal of Materials and Structures. DOI: 10.1617/s11527-013-0209-z.

[6]   Elliot, R.P., Ford, M.C., Ghanim, M., Tu, Y.F., (1991), “Effect of Aggregate Gradation Variation on Asphalt Concrete Mix Properties”, In Transportation Research Record, Transportation Research Board: Washington DC, WA, USA, pp. 52–60.

[7]   Fuller, W. B., and Thompson, S. E., (1907). “The laws of proportioning concrete”, Transactions of ASCE, ASCE, Vol. 59, pp. 67-143.

[8]   Goode, J.F. and Lufsey, A. (1962), “A New Graphical Chart for Evaluating Aggregate Gradations”, Proceedings of Association of Asphalt Paving Technologists, Vol. 31, 1962, pp. 176-207.

[9]   Haddock, J.P., Changlin, P., Feng, A. and White, T.L. (1999), “Effect of Gradation on Asphalt Mixture Performance”, Transportation Research Record, Journal of Transportation Research Board. Vol. 1681, No. 1, pp. 59-68.

[10] Kandhal, P. S., and Mallick, R. B. (2001), “Effect of mix gradation on rutting potential of dense-graded asphalt mixtures”, Transportation Research Record, Vol.1767, pp.146-151.

[11] Kim, Y.R., Kim, N., Khosla, N.P., (1992), “Effect of Aggregate Type and Gradation on Fatigue and Permanent Deformation of Asphalt Concrete”, in Meininger, R.C. (ed), Effect of Aggregate and Mineral fillers on Asphalt Mixture performance, ASTM, STP 1147.

[12] Mansour, T.N. and Putman, B. J. (2013), “Influence of Aggregate Gradation on the Performance Properties of Porous Asphalt Mixtures”, Journal of Materials in Civil Engineering. Vol. 25, No. 2.

[13] McLeod, N. W. (1937), “Review of Design of Subgrades and of Base Courses and Selection of Aggregates”. Proc. Nat. Bituminous Conf., pp. 75-80.

[14] Miranda, B. F. L., (2012), “Gradation-Based Framework for Asphalt Mixtures”, Dissertation submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, KTH Royal Institute of Technology, Sweden.

[15] Stroup-Gardiner, M.; Brown, E.R. (2000) “Segregation in Hot-Mix Asphalt Pavements”; Transportation Research Board: Washington, DC, USA, 2000.

[16] Vavrik, W.R. (2000), “Asphalt Mixture Design Concepts to Develop Aggregate Interlock”, Dissertation submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, University of Illinois at Urbana, USA.

[17] Xue, Y., Hou, H., Zhu, Sh. And Zha, J. (2009), “Utilization of municipal solid waste incineration ash in stone mastic asphalt mixture: Pavement performance and environmental impact”, Journal of Construction and Building Materials, Vol. 23, No. 2, pp. 989-996.

Zhao, W. (2011), “The Effects of Fundamental Mixture Parameters on Hot-Mix Asphalt Performance Properties”, Dissertation submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy, Clemson University, USA.

bottom of page