This study systematically scrutinized the influence of grain shape modification on the compaction characteristics of granular subgrade materials commonly employed in roadbed and subgrade construction. The process involved conducting compaction tests on granular crushed stones whose shape was altered through the grinding process facilitated by a granulating machine. As an initial step, the crushed stone was subjected to the grinding machine multiple times to induce changes in grain shape. This procedure resulted in crushed stone grains with fewer surface irregularities, smaller diameters, and a more circular shape tendency. Subsequently, image processing techniques were utilized to quantify these alterations in grain shape. Further, compaction tests were executed using a tamping method on the ground crushed stones, and their compaction characteristics were meticulously examined afterward. The results revealed no notable disparities in maximum dry density or optimal moisture content.
Effect of Particle Shape Alterations Using Grinding Process on the Compaction Characteristics of Granular Subgrade Materials
Lecture Notes in Civil Engineering
International Conference on Transportation Geotechnics ; 2024 ; Sydney, NSW, Australia November 20, 2024 - November 22, 2024
Proceedings of the 5th International Conference on Transportation Geotechnics (ICTG) 2024, Volume 6 ; Chapter : 27 ; 257-264
2024-10-18
8 pages
Article/Chapter (Book)
Electronic Resource
English
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