Evaluasi Pemadatan Tanah pada Proyek Pembangunan Gedung

Abstract

Soil compaction is one of the robust methods to improve the strength and compressibility of earthwork since the method is more efficient and practical. However, the compaction work must be evaluated to meet the maximum dry density (MDD) required from the standard laboratory compaction test. The common method used for the evaluation of field density is the sand-cone test. The main objective of this study was to investigate the relative compaction of the borrow-fill at the building construction using the sand-cone test. The test procedure followed the ASTM D1556/D1556M-15e1 and ASTM D698-12e2 for sand-cone test and Proctor standard compaction test. Statistical analysis was performed to evaluate the density and moisture obtained from the field test at Dorm and Research and Innovation Center (RIC) project construction. The probability (p) of the compaction work exceeded the 0,9 MDD or R_c=90% was calculated p=13% and p=18%. The results corresponded to average relative compaction (R_c) of 80% and 82% at the Dorm and RIC project, respectively, with the deviation standard of 8.69 dan 8.81.