Analysis of Quarry Material Characteristics in Reclamation work Using Sand Cone and CBR Methods (Case Study: Patimban Port Package 5)

This study aims to analyze and compare the results of material compaction from four different quarries, namely Papumas, Rega and Refaldi (RDR), Mandiri Sejahtera Sentra (MSS), and Selo Agung, using the field density test (sand cone) and laboratory carrying capacity test (CBR) methods. The research methodology includes the analysis of physical characteristics such as particle size distribution and sludge content, as well as compaction quality testing after being subjected to the same number of Vibratory Roller passes for each material. The results of the study showed that the material from the Mandiri Sejahtera Sentra (MSS) quarry achieved the highest average field density (±104.71%), indicating the highest compaction effectiveness among the materials tested. In terms of carrying capacity, the material from the Papumas quarry proved to be the most superior, with the highest CBR value both in dry conditions (103.00%) and after submersion (58.00%). In contrast, the Rega and Refaldi (RDR) quarry materials showed the highest sensitivity to water, with their CBR value plummeting from 75.00% to 27.00% when submerged, which correlates with the highest silt content (9.21%). These findings indicate that the physical characteristics of materials, such as silt content and grain size distribution, are the main determining factors affecting the final yield of soil density and carrying capacity. This research provides technical recommendations for the selection of reclamation materials to ensure the achievement of compaction quality targets in accordance with project conditions and requirements.