International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 05 | May 2025
p-ISSN: 2395-0072
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Geogrid-Integrated Pavement Systems: A Dual-Scale Evaluation of Mechanical Efficiency and Lifecycle Benefits Om Prakash Yadav1, Abhishek Upadhyay2, Nagendra Dhakar3 1Research Scholar, Mewar University, Chittorgarh, Rajasthan, India
1Assistant Professor, Mewar University, Chittorgarh, Rajasthan, India 2Assistant Professor, Suresh Gyan Vihar University, Jaipur, Rajasthan, India
---------------------------------------------------------------------***--------------------------------------------------------------------also aligns with India’s infrastructure goals under initiatives Abstract - Geogrid reinforcement has gained traction in like Bharatmala and PMGSY.
pavement engineering as a sustainable approach to enhance the structural capacity and durability of flexible pavements. This study presents an empirical investigation into the effects of geogrid types and placement depths on pavement performance indicators including California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS), Resilient Modulus, and rutting resistance. Laboratory tests and a realworld case study validate the significant mechanical and economic benefits of using biaxial and uniaxial geogrids. The findings support design adaptations and policy guidelines for effective integration of geogrids in road infrastructure.
2. LITERTURE REVIEW Extensive research highlights the role of geogrids in improving flexible pavement performance through improved load distribution and rutting resistance. Perkins (2002) found significant rutting reduction with geogrid use in base layers. Giroud and Han (2004) presented analytical models to quantify geogrid benefits. Field trials by Al-Qadi et al. (2008) showed improved distress ratings. Koerner (2012) emphasized durability concerns. Dash and Hussain (2012) observed improved service life.
Key Words: Flexible pavement, Geogrid reinforcement, CBR, Rutting, Resilient modulus, Pavement design.
However, most studies lacked integration with Indian subgrade conditions, especially expansive clay soils. This study addresses such limitations through controlled experimental work.
1.INTRODUCTION Flexible pavements are essential components of road infrastructure but are prone to failures such as rutting and fatigue under high traffic loads. To address these issues, geogrid reinforcements have been proposed to improve the structural integrity and longevity of pavements. This paper aims to provide an experimental evaluation of geogridreinforced pavements, comparing different grid types and placement strategies.
In addition to the above studies, there has been a growing emphasis on evaluating geogrid performance under varying climatic conditions. For example, Pokharel (2011) modeled stress-strain response under sub-zero temperatures and found better load dissipation in reinforced layers. Gabr and Hopkins (2000) reported that geogrid inclusion resulted in reduced vertical deformation across multiple loading cycles. The growing body of evidence supports geogrid application, though gaps persist in harmonizing design standards globally.
Traditional flexible pavements rely heavily on the quality of subgrade and base layers. However, with the increase in traffic volume and axle loads, the conventional methods have shown limitations in withstanding stress over long periods. Geosynthetics like geogrids have emerged as a promising solution by offering confinement, separation, and reinforcement properties. Their role in minimizing differential settlement and enhancing modulus of elasticity makes them essential for long-term pavement performance.
Recent work by Singh and Jain (2019) on Indian rural roads demonstrated that reinforced layers exhibited less cracking even under overloaded conditions. Their work showed that localized solutions using available materials can yield optimal outcomes.
There has also been growing concern over rising maintenance costs associated with flexible pavements, particularly in regions with weak subgrades or seasonal rainfall fluctuations. This necessitates durable and costeffective reinforcement strategies.
Zhou et al. (2016) studied the tensile-strain compatibility of geogrids with recycled base layers and emphasized its use for sustainable construction. These studies collectively highlight geogrids’ adaptability and potential for customization.
The present research not only fills the literature gap by examining geogrid effects in semi-arid climatic regions but
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