Pavement Engineering
Pavement Engineering
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Pavement engineering focuses on the design, construction, and maintenance of road surfaces to ensure durability and performance under growing traffic loads and drastic climatic conditions. It involves studying materials, structural behavior, and environmental impacts to develop sustainable and efficient pavement systems. This field is crucial for enhancing transportation infrastructure and safety.
At i-Mass Laboratory, We work on improving moisture-resistant conventional hot mix asphalt (HMA), sustainable warm and cold mix asphalt (WMA&CMA), as well as asphalt binder rheology. We carried out laboratory studies as well as field implementation of research outcomes to assess the field performance of pavements. We have a well-equipped and sophisticated pavement materials laboratory testing various pavement materials such as aggregates, asphalt binders, and asphalt mixtures.
Surya Narayanan Sakthivel, Ankit Kathuria, Bhupendra Singh. (2022), Utilization of Inferior Quality Aggregates in Asphalt Mixes- A Systematic Review, Journal of Traffic and Transportation Engineering (English Edition), 07 (05): 864-879. https://doi.org/10.1016/j.jtte.2022.03.001
Highlights:
Various inferiorities in aggregate properties are discussed.
A review of different treatment measures to improve the properties of inferior-quality aggregate is presented.
The effect of various treatment methods on the properties of asphalt mixes is reviewed.
Future research directions for treating inferior-quality aggregate to be used in asphalt mixes are discussed.
Surya Narayanan Sakthivel, Ankit Kathuria, Bhupendra Singh. (2023), Moisture susceptibility of chemically treated quartzite aggregates in hot mix asphalt, International Journal of Pavement Engineering, 24 (1). https://doi.org/10.1080/10298436.2023.2259575
Highlights:
The study characterizes the locally available acidic aggregates from three different sources and tries to improve adhesion properties through chemical treatment methods.
Hydrated lime, Nano-organosilane, and three Silane coupling agents were used to modify the surface of the aggregate.
Moisture susceptibility of HMA was assessed by retained Marshall stability (RMS), tensile strength ratio (TSR), and fracture energy ratio (FER).
Surya Narayanan Sakthivel, Ankit Kathuria, Bhupendra Singh. (2023), Chemical Treatment of Quartzite Aggregates and Its Effect on Moisture Susceptibility of Asphalt Mix, Journal of Materials in Civil Engineering, 36 (3). https://doi.org/10.1061/JMCEE7.MTENG-17035
Highlights:
Quartzite aggregates have poor adhesion with asphalt binder due to the higher silica content present in the mineral composition.
Conventional TSR and the surface free energy (SFE)-based Energy Ratio were used to predict the moisture susceptibility in asphalt mixtures.
This study tried to improve quartzite aggregates’ adhesion properties by modifying the aggregates’ surface with NOS, and two SCAs were used in modifying the aggregates’ surface.
Results showed that surface modifications by chemical treatments reduced the aggregate’s SFE by increasing the aggregate nonpolar components to make a better bond with asphalt binder, which is also a non-polar material.
Surya Narayanan Sakthivel, Bhupendra Singh, Ankit Kathuria. (2024), Moisture Susceptibility of HMA Containing High Siliceous Quartzite Aggregates: A Comparative Study of Different Hydrated Lime Addition Methods, Road Materials and Pavement Design (Taylor & Francis). https://doi.org/10.1080/14680629.2024.2412089
Highlights:
Hydrated lime (HL) has been used in asphalt mixtures to enhance the resistance to moisture-induced damage in three ways viz, as a filler, bitumen additive, and coating to aggregates.
This study compared all three HL addition mechanisms to improve moisture-induced damage in hot mix asphalt (HMA) made with high siliceous quartzite aggregates (more than 75 percent silica composition).
Extensive experimental investigations were carried out, such as retained stability, indirect tensile strength (ITS), tensile strength ratio (TSR), and fracture energy (FE), to compare the effects of HL addition with respect to conventional mixes
The ITS and TSR results found that HL-additive and HL-coating methods improved the resistance to moisture damage. Compared to control mixtures, HL-treated mixtures showed 20-25 percent higher TSR Values
Team Members
Surya Narayanan S
PhD Student and Project Officer
Koduru Sandeep
PhD Student
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