Hydraulic Conductivity Prediction of Cement Stabilized Pavement Base Incorporating Recycled Plastics and Recycled Aggregates
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32870
Hydraulic Conductivity Prediction of Cement Stabilized Pavement Base Incorporating Recycled Plastics and Recycled Aggregates

Authors: Md. Shams Razi Shopnil, Tanvir Imtiaz, Sabrina Mahjabin, Md. Sahadat Hossain


Saturated hydraulic conductivity is one of the most significant attributes of pavement base course. Determination of hydraulic conductivity is a routine procedure for regular aggregate base courses. However, in many cases, a cement-stabilized base course is used with compromised drainage ability. Traditional hydraulic conductivity testing procedure is a readily available option which leads to two consequential drawbacks, i.e., the time required for the specimen to be saturated and extruding the sample after completion of the laboratory test. To overcome these complications, this study aims at formulating an empirical approach to predicting hydraulic conductivity based on Unconfined Compressive Strength test results. To do so, this study comprises two separate experiments (Constant Head Permeability test and Unconfined Compressive Strength test) conducted concurrently on a specimen having the same physical credentials. Data obtained from the two experiments were then used to devise a correlation between hydraulic conductivity and unconfined compressive strength. This correlation in the form of a polynomial equation helps to predict the hydraulic conductivity of cement-treated pavement base course, bypassing the cumbrous process of traditional permeability and less commonly used horizontal permeability tests. The correlation was further corroborated by a different set of data, and it has been found that the derived polynomial equation is deemed to be a viable tool to predict hydraulic conductivity.

Keywords: Hydraulic conductivity, unconfined compressive strength, recycled plastics, recycled concrete aggregates.

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 273


[1] Sanger M., Natarajan B.M., Wang B., Edil T., Ginder-Vogel M. (2020), “Recycled concrete aggregate in base course applications: Review of field and laboratory investigations of leachate pH,” Journal of Hazardous Materials, Volume 385.
[2] Copeland, A. (2011), “Reclaimed asphalt pavement in asphalt mixtures: State of the practice,” Technical report, TRID.
[3] Imtiaz, T. (2021), “Reusing of Recycled Plastic as Pavement Base and Sub-base Materials”, PhD dissertation, The University of Texas at Arlington.
[4] Snyder, M. B. (2016), “Concrete Pavement Recycling and the Use of Recycled Concrete Aggregate in Concrete Paving Mixtures,” CP Road MAP Brief March 2016. National Concrete Pavement Technology Center, Iowa State University, Ames, IA.
[5] Geotechnical Aspects of Pavements Reference Manual, FHWA (2017).
[6] M Pasetto, N Baldo (2012), “Experimental evaluation of high-performance base course and road base asphalt concrete with electric arc furnace steel slags,” Journal of hazardous materials 181 (1-3), 938-948.
[7] Shopnil, MSR. (2022), “Microplastic Risk Characterization of Plastic Road,” PhD dissertation, The University of Texas at Arlington.
[8] Plastics: Material-Specific Data, USEPA.
[9] Greg White (2019), “Evaluating Recycled Waste Plastic Modification and Extension of Bituminous Binder for Asphalt,” Eighteenth Annual International Conference on Pavement Engineering, Asphalt Technology and Infrastructure, Liverpool, UK.
[10] Greg White, Gordon Reid (2018), “Recycled Waste Plastic for Extending and Modifying Asphalt Binders,” 8th Symposium on Pavement Surface Characteristics: SURF 2018At: Brisbane, Queensland, Australia.
[11] R Vasudevan, S Rajasekaran (2006), “Study on the construction of flexible road using plastic coated aggregate,” Global Plastics Environmental Conference (GPEC), Atlanta, USA.
[12] Ordonez, C. A. (2007), “Characterization of cemented and fiber-reinforced rap aggregate materials for base/sub-base applications,” Journal of Materials in Civil Engineering.
[13] Texas, D. (2004), “Standard specifications for construction and maintenance of highways, streets, and bridges,” Austin, Texas.
[14] Rana, A. (2004), “Evaluation of recycled material performance in highway applications and optimization of their use,” PhD dissertation, Texas Tech University.
[15] Sobhan, K. and Mashnad, M. (2003), “Mechanical stabilization of cemented soil fly ash mixtures with recycled plastic strips,” Journal of environmental engineering, 129(10):943-947.
[16] Hoyos, L. R., Puppala, A. J., and Ordonez, C. A. (2011), “Characterization of cement fiber-treated reclaimed asphalt pavement aggregates: preliminary investigation,” Journal of Materials in Civil Engineering, 23(7):977-989.