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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Performance Evaluation of Geogrid-Reinforced Flexible Pavements: Experimental and Economic Insights Dhananjay Singh1, Nagendra Dhakar2 1Research Scholar, Mewar University, Chittorgarh, Rajasthan, Indi
2Assistant Professor, Suresh Gyan Vihar University, Jaipur, Rajasthan, India
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Abstract - This study investigates the enhancement of flexible pavement performance through geogrid reinforcement. Geogrids, polymer-based materials, improve load distribution, reduce rutting, and enhance fatigue resistance. The research combines laboratory and field tests to evaluate the mechanical behavior of geogrid-reinforced pavements. Key findings indicate that geogrid-reinforced pavements exhibit superior performance in terms of increased strength, reduced rutting, and increased durability compared to non-reinforced pavements. The life-cycle cost analysis further supports the cost-effectiveness of using geogrids, with a significant reduction in maintenance needs and a favorable benefit-cost ratio. These findings provide a practical guide for integrating geogrids in pavement design, contributing to sustainable and cost-effective road infrastructure solutions.
pavement design, particularly in regions with varying climatic conditions and weak subgrade soils. This study aims to evaluate the performance improvements associated with geogrid reinforcement through comprehensive laboratory and field experiments, followed by a cost-benefit analysis. 2. LITERTURE REVIEW Geogrid reinforcement has gained significant attention in the field of pavement engineering due to its ability to enhance the structural integrity of flexible pavements. Geogrids improve the load distribution, reduce rutting, and enhance fatigue resistance, which ultimately improves the overall performance and lifespan of flexible pavements. Numerous studies have been conducted to evaluate the effect of geogrid reinforcement in pavements. Studies by Ahmed & Khan (2017), Gupta & Yadav (2018), and Sharma & Das (2016) provide evidence of improved rutting resistance, increased fatigue life, and better load transfer in reinforced pavements. However, the application of geogrids is still not widespread due to the lack of long-term data, performance validation across different climates, and standardized design guidelines.
Key Words: Geogrid Reinforcement, Flexible Pavement, Pavement Durability, Life Cycle Cost Analysis, Pavement Performance. 1.INTRODUCTION Flexible pavements are a critical component of road infrastructure due to their cost-effectiveness and adaptability to various traffic and environmental conditions. However, these pavements often face challenges related to their durability under increasing traffic volumes, heavy loads, and extreme environmental conditions such as temperature fluctuations and moisture. Issues such as rutting, cracking, and moisture-induced damage often lead to increased maintenance and rehabilitation costs, which can ultimately affect road safety and overall performance.
Table 1: Summary of Key Literature Study
Geogrid reinforcement, a relatively new technique, has emerged as a promising solution to address these challenges. Geogrids, which are polymeric materials with a grid-like structure, act as reinforcement layers within the pavement to improve its structural capacity. This reinforcement helps in distributing loads, reducing lateral displacement of aggregates, and enhancing the bearing capacity of the pavement system. Geogrids also provide better resistance to rutting, fatigue cracking, and reduce the overall maintenance cost.
S.No
Author(s) & Year
Title
Key Findings
1
Ahmed & Khan (2017)
Geogrid Reinforcement in Flexible Pavements
Improved load transfer and rutting resistance. Limited field studies.
2
Gupta Yadav (2018)
Effect of Geogrid on Pavement Performance
Significant reduction in surface deformation. Lack of fatigue life data.
3
Sharma & Das (2016)
Rutting Durability
Notable reduction in rut depth, short test duration.
&
&
Despite the recognized benefits of geogrid reinforcement in flexible pavements, the practice is not yet widely adopted in
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