PEMANFAATAN AGREGAT KASAR PT. PULAU LEMON SEBAGAI BAHAN BETON PADA JEMBATAN WITO DAN TALUD WEDONI KABUPATEN MANOKWARI PROVINSI PAPUA BARAT

Yosua Ambaa (Jurusan Teknik Pertambangan, Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua)
Hendri P. Perangin-Angin (Jurusan Teknik Pertambangan, Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua)

INTAN Jurnal Penelitian Tambang
Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang

PT. Pulau Lemon is one of the companies engaged in mining operation, with gravel as its mining material. Therefore, to anticipate the aggregate increase in material demand from the company, it is necessary to carry out a sieve analysis in order to produce the planned size (fraction) according to the needs of aggregate utilization. Based on the results of data processing, the highest sieving efficiency of sifting of coarse aggregate at Wito Bridge is found in sieve number 1, with the percentages of 0.61%. the smallest sieving efficiency is found in sieve number 2 and 1½, which is 0.00%. For the fine aggregate sieving efficiency at Talud Wedoni, the largest sieving efficiency is found in sieve number 1, with the percentages of 0.53%, while the smallest efficiency is in sieving efficiency with sieve number 2 and 1½, which is 0.00%. Moreover, the largest sieving efficiency at Wito Bridge is found in sieve number 4, which is 39.34%, while the smallest efficiency is found in sieve number 100 at 0.01%. The largest sieving efficiency at Talud Wedoni is found in the sieve number 4 at 12.45%, while the smallest efficiency is found in sieve number 100, with the percentages of 0.04%.