Application of WMA Technology to Bituminous Base Course Mixes

Rajan Choudhary, Asho Julaganti, Abhinay Kumar, Dipak Arjun Ugale


Warm Mix Asphalt, due to lower mixing and compaction temperatures, provides some engineering benefits over conventional Hot Mix Asphalt. In this study, an attempt is made to assess the viability of using Warm Mix Asphalt technology in bituminous base courses. An organic wax-based Warm Mix Asphalt additive was used in this study to produce Dense Bituminous Macadam, a commonly used bituminous base course mix in India. Experimental variables included three additive contents and four mixing temperatures. Rheological properties of binder modified with different doses of additive were examined. In all, twelve Warm Mix Asphalt Dense Bituminous Macadam mix types were prepared, evaluated and compared with Hot Mix Asphalt Dense Bituminous Macadam (control) mix. Rheological test results showed the addition of wax-based additive improved stiffness and resistance against permanent deformation of the base binder. Tensile Strength Ratio and retained Marshall Stability results indicated that Warm Mix Asphalt Dense Bituminous Macadam mixes were resistant to moisture-induced damage.


base course; Hot Mix Asphalt; moisture damage; rheology; Warm Mix Asphalt

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AASHTO T283:2007. Standard Method of Compacted Hot Mix Asphalt (HMA) to Moisture-Induced Damage. American Association of State Highway and Transportation Officials Washington, DC, 2007.

Asphalt Institute. (1997). Mix design methods for asphalt concrete and other-mix types (MS-2). Asphalt Institute, Lexington KY.

ASTM D6926:2010. Standard Practice for Preparation of Bituminous Specimens using Marshall Apparatus. ASTM International, West Conshohocken, PA.

Biro, S., Gandhi, T., & Amirkhanian, S. (2009). Determination of zero shear viscosity of warm asphalt binders. Construction and Building Materials, 23(5), 2080–2086.

Capitão, S. D., Picado-Santos, L. G., & Martinho, F. (2012). Pavement engineering materials: review on the use of warm-mix asphalt. Construction and Building Materials, 36, 1016–1024.

Choudhary, R., & Julaganti, A. (2014). Warm mix asphalt: paves way for energy saving. Recent Research in Science and Technology, 6(1).

Hınıslıoğlu, S., & Ağar, E. (2004). Use of waste high density polyethylene as bitumen modifier in asphalt concrete mix. Materials letters, 58(3–4), 267–271.

Hurley, G. C., & Prowell, B. D. (2005). Evaluation of Sasobit for use in warm mix asphalt. NCAT report, 5(6), 1–27.

IRC 111:2009. Specifications for Dense Graded Bituminous Mixes. Indian Roads Congress, New Delhi India.

IS 73:2013. Paving Bitumen – Specification. Bureau of Indian Standards, New Delhi India.

Jamshidi, A., Hamzah, M. O., & You, Z. (2013). Performance of warm mix asphalt containing Sasobit®: State-of-the-art. Construction and Building Materials, 38, 530–553.

Kanitpong, K., Sonthong, S., Nam, K., Martono, W., & Bahia, H. U. (2007). Laboratory study on warm-mix asphalt additives. Transportation Research Board 86th Annual Meeting, (No. 07- 1364). Washington DC.

Kim, H., Lee, S. J., & Amirkhanian, S. N. (2012). Influence of warm mix additives on PMA mixture properties. Journal of Transportation Engineering, 138(8), 991–997.

Leng, Z., Gamez, A., & Al-Qadi, I. L. (2014). Mechanical property characterization of warm-mix asphalt prepared with chemical additives. Journal of Materials in Civil Engineering, 26(2), 304– 311.

MoRTH:2013. Specifications for Road and Bridge. Ministry of Road Transport and Highways, Govt. of India, New Delhi.

Ott, R. L.; Longnecker, M. (2015). An introduction to statistical methods & data analysis (7th ed.). Cengage Learning.

Rubio, M. C., Martinez, G., Baena, L., & Moreno, F. (2012). Warm mix asphalt: an overview. Journal of Cleaner Production, 24, 76–84.

Su, K., Maekawa, R., & Hachiya, Y. (2009). Laboratory evaluation of WMA mixture for use in airport pavement rehabilitation. Construction and Building Materials, 23(7), 2709–2714.

Wasiuddin, N. M., Saha, R., King Jr, W., & Mohammad, L. (2012). Effects of temperature and shear rate on viscosity of Sasobit®-modified asphalt binders. International Journal of Pavement Research and Technology, 5(6), 369–378.

You, Z. P., & Goh, S. W. (2008). Laboratory evaluation of warm mix asphalt: a preliminary study. International Journal of Pavement Research and Technology, 1(1), 34–40.

DOI: 10.7250/bjrbe.2018-13.403


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