Laporan Akhir Magang PT Semen Bosowa Banyuwangi

Fariza, Fara (2026) Laporan Akhir Magang PT Semen Bosowa Banyuwangi. Project Report. [s.n.]. (Unpublished)

Text 2041221006-Project_Report.pdf - Accepted Version Restricted to Repository staff only Download (4MB) | Request a copy

Abstract

PT Semen Bosowa Banyuwangi merupakan industri semen yang memproduksi Portland Composite Cement (PCC) dengan mutu produk yang harus memenuhi standar kualitas, salah satunya parameter setting time. Selama proses produksi masih ditemukan fluktuasi nilai initial setting time dan final setting time yang berpotensi memengaruhi konsistensi mutu semen. Oleh karena itu, kegiatan magang ini bertujuan untuk mengidentifikasi faktor-faktor penyebab ketidakstabilan setting time serta menentukan kombinasi parameter proses yang optimum untuk menghasilkan setting time yang stabil. Analisis dilakukan menggunakan pendekatan studi kasus melalui pengolahan data hasil pengujian laboratorium Process Lab selama bulan Oktober. Tahapan analisis meliputi identifikasi akar penyebab menggunakan diagram Fishbone (Ishikawa), analisis hubungan antara kadar gypsum, kandungan SO₃, dan nilai Blaine terhadap setting time, serta optimasi parameter menggunakan metode Response Surface Methodology (RSM) dengan bantuan perangkat lunak Minitab. Hasil analisis menunjukkan bahwa faktor material menjadi penyebab dominan yang memengaruhi kestabilan setting time, khususnya variasi kadar gypsum, kandungan SO₃, dan kehalusan semen (Blaine). Hasil optimasi menunjukkan bahwa kombinasi kadar gypsum sebesar 2,843%, nilai Blaine 4270,34 cm²/g, dan kadar SO₃ 1,992% menghasilkan kondisi optimum dengan prediksi initial setting time sebesar 128 menit dan final setting time sebesar 249 menit, serta memiliki nilai desirability sebesar 1,000. Hasil ini menunjukkan bahwa pengendalian ketiga parameter tersebut secara konsisten dapat meningkatkan kestabilan setting time sekaligus mendukung pengendalian mutu produk PCC di PT Semen Bosowa Banyuwangi.
=================================================================================================================================
PT Semen Bosowa Banyuwangi produces Portland Composite Cement (PCC), whose quality must comply with established standards, including the setting time parameter. During the production process, fluctuations in the initial and final setting times were observed, potentially affecting product quality consistency. Therefore, this internship aimed to identify the factors causing setting time instability and determine the optimum combination of process parameters to achieve stable setting time performance. The study employed a case study approach using laboratory data collected from the Process Laboratory during October. The analysis consisted of root cause identification using the Fishbone (Ishikawa) diagram, evaluation of the relationships between gypsum content, SO₃ content, and Blaine fineness with setting time, and process optimization using the Response Surface Methodology (RSM) implemented in Minitab software. The results indicated that material-related factors were the dominant contributors to setting time instability, particularly variations in gypsum content, SO₃ content, and cement fineness (Blaine). The optimization results suggested that the optimum operating conditions were 2.843% gypsum, 4270.34 cm²/g Blaine fineness, and 1.992% SO₃ content, which produced a predicted initial setting time of 128 minutes and final setting time of 249 minutes, with a desirability value of 1.000. These findings demonstrate that consistent control of these three parameters can improve setting time stability and support the quality control of PCC production at PT Semen Bosowa Banyuwangi.

Item Type:	Monograph (Project Report)
Uncontrolled Keywords:	Portland Composite Cement (PCC), Setting time, Response Surface Methodology, optimization.Portland Composite Cement (PCC), setting time, gypsum, Response Surface Methodology, optimasi.
Subjects:	Q Science > QD Chemistry Q Science > QD Chemistry > QD75.2 Chemistry, Analytic
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering Technology
Depositing User:	Fara Fariza
Date Deposited:	15 Jul 2026 07:44
Last Modified:	15 Jul 2026 07:44
URI:	http://repository.its.ac.id/id/eprint/134943

Actions (login required)

View Item