Mixing and Compaction Temperature of Nanosilica Composite Polymer Modified Asphalt


  • Esraa J Al-mousawi Ministry of Transportation, the General Company for Land Transport, Baghdad, Iraq.
  • Rashaa H Al-Rubaee Civil Engineering Department, University of Technology, Baghdad, Iraq.
  • Ammar A Shubber Civil Engineering Department, University of Technology, Baghdad, Iraq




Brookfield rotational viscometer, composite modified asphalt, mixing and compaction temperature, storage stability.


Recently, polymer -nanocomposites were used to manufacture durable asphalt mixtures to replace the polymer modified binder, because of the remarkable properties and unique features of nanomaterials compared to conventional materials, such as their wide surface area and small dimensions, making it possible to be utilized as an additive for asphalt paving. Nanosilica particles (NS) are one of the latest minerals which likely integrate useful characteristics, such as huge surface area, good distributions, high absorption levels, high stability, and a high level of purity. Therefore, this paper is interested in studying the characteristics of nanocomposite-polymer modified asphalt. In laboratory work, a pure asphalt 60-70 penetration grade, has been modified separately with waste polypropylene polymer (WPP), and nanosillica composite polypropylene (NS/WPP) at different concentrations. As a result, two modified binders: waste polypropylene polymer- modified asphalt (WPP-MA), and nanosillica composite polypropylene modified asphalt (NSCPMA) were obtained. Traditional asphalt binder tests were performed for pure and modified binders such as penetration, ductility, flash and fire point test, softening point, and rotational viscosity. Also, storage stability test has been conducted to ensure the storage stability of binders at high temperatures. The results showed an improvement in physical properties and increase in mixing and compaction temperature due to the increase in stiffness of (NSCPMA). The results also indicated that the nanosillica composite polypropylene modified asphalt binders have good storage stability at high temperatures.


Download data is not yet available.


Metrics Loading ...


Airey, G. D. (2003). Rheological properties of styrene butadiene styrene polymer modified road bitumens☆. Fuel, 82(14), 1709-1719..

Isacsson, U., & Lu, X. (2004). Testing and appraisal of polymer modified road bitumens. Bitum. Bind. Mixes, 17(9).

J. Read, D. Whiteoak, and R. N. Hunter, (2003). The shell bitumen handbook. Thomas Telford.

Zhu, J., Birgisson, B., & Kringos, N. (2014). Polymer modification of bitumen: Advances and challenges. European Polymer Journal, 54, 18-38.

Bala, N., & Kamaruddin, I. (2016). Physical and storage stability properties of linear low density polyethylene at optimum content,” in Engineering Challenges for Sustainable Future, 395(399): 395-399. ROUTLEDGE in association with GSE Research.

Mashaan, N. S., Ali, A. H., Karim, M. R., & Abdelaziz, M. (2014). A review on using crumb rubber in reinforcement of asphalt pavement. The Scientific World Journal, 2014.

Yusoff, N. I. M., Breem, A. A. S., Alattug, H. N., Hamim, A., & Ahmad, J. (2014). The effects of moisture susceptibility and ageing conditions on nano-silica/polymer-modified asphalt mixtures. Construction and Building Materials, 72, 139-147.

Yang, J., & Tighe, S. (2013). A review of advances of nanotechnology in asphalt mixtures. Procedia-Social and Behavioral Sciences, 96, 1269-1276.

Q. Xu, H. Chen, and J. A. Prozzi, (2010).Performance of fiber reinforced asphalt concrete under environmental temperature and water effects. Constr. Build. Mater.,. 24 (10): 2003–2010.

B. Amini, M. J. Rajabbolookat, A. Abdi, and R. Salehfard, (2017). Investigating the influence of using nano-composites on storage stability of modified bitumen and moisture damage of HMA,” Pet. Sci. Technol., 35(8): 800–805.

L. P. Singh, S. R. Karade, S. K. Bhattacharyya, M. M. Yousuf, and S. Ahalawat, (2013).Beneficial role of nanosilica in cement based materials–A review,” Constr. Build. Mater., 47 :1069–1077.

S. Sadeghpour, B. Dabir, A. Ehsan, and A. Moeini, (2010).Rheological properties and storage stability of bitumen / SBS / montmorillonite composites,” Constr. Build. Mater., 24 (3):300–307, doi: 10.1016/j.conbuildmat.2009.08.032.

Z. You et al., (2011). Nanoclay-modified asphalt materials: Preparation and characterization,” Constr. Build. Mater., 25(2):1072–1078.

N. Bala, I. Kamaruddin, M. Napiah, and N. Danlami,(2017).Rheological and rutting evaluation of composite nanosilica/polyethylene modified bitumen. in IOP Conference Series: Materials Science and Engineering, 201(1):12012.

Chrissafis, K., Paraskevopoulos, K. M., Papageorgiou, G. Z., & Bikiaris, D. N. (2008). Thermal and dynamic mechanical behavior of bionanocomposites: fumed silica nanoparticles dispersed in poly (vinyl pyrrolidone), chitosan, and poly (vinyl alcohol). Journal of applied polymer science, 110(3), 1739-1749.

Yu, R., Fang, C., Liu, P., Liu, X., & Li, Y. (2015). Storage stability and rheological properties of asphalt modified with waste packaging polyethylene and organic montmorillonite. Applied Clay Science, 104, 1-7.

Alhamali, D. I., Wu, J., Liu, Q., Hassan, N. A., Yusoff, N. I. M., & Ali, S. I. A. (2016). Physical and rheological characteristics of polymer modified bitumen with nanosilica particles. Arabian Journal for Science and Engineering, 41(4), 1521-1530.

Joni, H., & Shaker, E. (2017). Determination of the acceptable range of mixing and compaction temperatures for modified asphalt mixture with styrene butadiene styrene (SBS). International Journal of Current Engineering and Technology, 7(5).

D. ASTM, (2013).Standard test method for penetration of bituminous materials. USA, ASTM Int.

A. D113, (2007).Standard test method for ductility of bituminous materials. Annu. B. Stand.

D. ASTM, (2014). Standard test method for softening point of bitumen (ring-and-ball apparatus). Am. Soc. Test. Mater. West Conshohocken, PA, USA.

A. International ASTM D70-09, (2009). Standard Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method).. ASTM International West Conshohocken, PA.

D. ASTM,70 (2003) Standard Test Method for Specific Gravity and Density of Semi-Solid Bituminous Materials (Pycnometer Method),” Annu. B. ASTM Stand., 4.

D. ASTM,(2015).Standard test method for viscosity determination of asphalt at elevated temperatures using a rotational viscometer. in American Society for Testing and Materials.

A. D92, (2016).Standard test method for flash and fire points by Cleveland open cup tester,” Annu. B. Stand..

D. ASTM, “7173 (2005) Standard Practice for Determining the Separation Tendency of Polymer from Polymer Modified Asphalt,” Annu. B. ASTM Stand., 4

Taherkhani, H., & Afroozi, S. (2016). The properties of nanosilica-modified asphalt cement. Petroleum Science and Technology, 34(15), 1381-1386.

Bhat, F. S., & Mir, M. S. (2019). Performance evaluation of nanosilica-modified asphalt binder. Innovative Infrastructure Solutions, 4(1), 63.,.

Zachariah, J. P., Sarkar, P. P., Debnath, B., & Pal, M. (2018). Effect of polypropylene fibres on bituminous concrete with brick as aggregate. Construction and Building Materials, 168, 867-876.




How to Cite

Al-mousawi, E. J. ., Al-Rubaee, R. H. ., & Shubber, A. A. . (2020). Mixing and Compaction Temperature of Nanosilica Composite Polymer Modified Asphalt. Wasit Journal of Engineering Sciences, 8(2), 27–36. https://doi.org/10.31185/ejuow.Vol8.Iss2.165



Civil Engineering