Investigation for influence of geopathic stress on structural behaviour of road elements

This paper proposes a novel road design parameter in the form of geopathic stress (GS) as a critical factor in the structural analysis of concrete pavements. While traditional pavement design practices are well-established, they often overlook the adverse effects of GS, including its magnetic and electric characteristics. This study conducts a two-year comparative analysis of concrete’s structural behaviour in GS zones and non-GS zones, utilizing destructive testing on laboratory beams and cubes, as well as non-destructive testing (NDT) with ultrasonic pulse velocity (UPV) on the Mumbai–Pune expressway. The results reveal a significant loss of compressive and flexural strength in concrete exposed to GS, reaching 18.43% and 23.43%, respectively, after one year. NDT results on panels indicate a progressive deterioration, suggesting weakened concrete over time. Furthermore, NDT on the expressway confirms that pavement deterioration is more pronounced in GS zones compared to non-GS zones, with all other parameters held constant. Given these findings, this paper recommends the incorporation of GS considerations in road design, offering benefits to structural engineering professionals and society by enhancing pavement longevity and durability in GS-affected areas.