Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal EKONOMIS : Journal of Economics and Business Journal of Artificial Intelligence and Digital Business
Oktavia, Shinta Dwi
Unknown Affiliation
Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Penambahan Limbah Serbuk Kayu Bangkirai dan Pasir Karjon terhadap Karakteristik Marshall Campuran Asphalt Concrete Wearing Course (AC-WC) Berliana, Adela; Oktavia, Shinta Dwi; Sulistyo, Juny Andry
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.6655

Abstract

Perkerasan jalan umumnya menggunakan lapisan Asphalt Concrete Wearing Course (AC-WC) sebagai lapisan aus yang berfungsi menerima beban lalu lintas secara langsung serta melindungi lapisan struktur di bawahnya dari pengaruh cuaca dan air. Peningkatan volume dan beban kendaraan menuntut campuran AC-WC memiliki stabilitas, fleksibilitas, dan durabilitas yang baik. Di sisi lain, penggunaan material konvensional secara terus-menerus berpotensi meningkatkan eksploitasi sumber daya alam, sehingga diperlukan inovasi material alternatif yang lebih berkelanjutan. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan limbah serbuk kayu bangkirai sebagai bahan tambah dan pasir karjon sebagai substitusi sebagian agregat halus terhadap karakteristik Marshall campuran AC-WC. Metode yang digunakan adalah eksperimen laboratorium dengan pembuatan 48 benda uji berdasarkan variasi kadar pasir karjon 0%, 2%, 4%, dan 6% serta limbah serbuk kayu bangkirai 0%, 1%, 3%, dan 5%. Pengujian Marshall dilakukan untuk memperoleh parameter VIM, VMA, VFB, stabilitas, flow, dan Marshall Quotient mengacu pada Spesifikasi Umum Bina Marga 2018 Revisi 2. Hasil penelitian menunjukkan seluruh variasi campuran memenuhi persyaratan teknis. Komposisi optimum diperoleh pada campuran 2% pasir karjon dan 5% limbah serbuk kayu bangkirai (P2S5%) dengan nilai stabilitas 958,14 kg, flow 3,13 mm, VIM 3,85%, VMA 22,37%, VFB 82,78%, dan Marshall Quotient 305,90 kg/mm. Hasil ini menunjukkan bahwa pemanfaatan material alternatif tersebut efektif meningkatkan kinerja campuran AC-WC serta berpotensi mendukung konstruksi perkerasan jalan yang ramah lingkungan dan berkelanjutan.
Analisis Pengendalian Persediaan Material Veneer dengan Metode Lagrange Multiplier di PT. XYZ Oktavia, Shinta Dwi; Aryanny, Enny
Ekonomis: Journal of Economics and Business Vol 10, No 1 (2026): Maret
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/ekonomis.v10i1.1913

Abstract

Inventory of raw materials plays a crucial role in the production process as it serves as the foundation supporting the smoothness and continuity of production. Both excess and shortage of raw material inventory have the potential to incur losses for the company. PT. XYZ is a company engaged in the plywood industry. The issue faced by PT. XYZ is the frequent ordering of more materials than the demand. This can lead to excess capacity and increased storage costs. Due to limited storage capacity, the quantity of orders must also be considered. The objective of this research is to achieve optimal inventory control of veneer while considering warehouse capacity to minimize total inventory costs. The method used is Lagrange Multiplier. Based on the research results, the total calculation results for new storage space are 586.64 m3, with orders for sengon veneer at 431 m3, jabon veneer at 379 m3, and mixed veneer at 336 m3. These values have reached optimal conditions because the order sizes do not exceed the warehouse's veneer material capacity, thereby avoiding overcapacity of raw materials. The total inventory cost obtained using the Lagrange Multiplier method is Rp 263,069,005. Thus, it can be concluded that the Lagrange Multiplier method can provide a minimal inventory solution in terms of the company's total inventory costs.
Co-Authors Berliana, Adela Enny Aryanny Sulistyo, Juny Andry