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Experimental Study on The Application of Taguchi Design of Experiment (DoE) and ANOVA for a Waste-Based Composite Material Sugiono, Didik; Rufaidah, Anik; Ulum, Miftahul; Rohmat, Rohmat
Jurnal IPTEK Vol 29, No 2 (2025): December
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i2.8254

Abstract

The increasing amount of industrial and agricultural waste necessitates innovation in the use of environmentally friendly alternative materials in the construction sector. This research aims to analyze the influence of varying cement, sand, seashell powder, and coconut fiber powder compositions on the compressive strength and porosity of paving blocks using the Taguchi method and ANOVA. The experimental design uses an orthogonal array L16 (4⁴), resulting in 16 experimental combinations. The test results indicate that coconut husk powder is the most significant factor influencing porosity, while other factors have a relatively small effect. The optimum parameters for porosity were obtained at a cement composition of 643.24 g, sand 915.84 g, seashell powder 686.883 g, and coconut fiber powder 0 g. Meanwhile, the optimum compressive strength was achieved at cement 643.23 g, sand 2289.60 g, seashell powder 228.961 g, and coconut fiber powder 0 g. Regression analysis showed that the model had a good fit with an R² of 0.8967 for porosity and 0.5625 for compressive strength. This research proves that utilizing clamshell and coconut husk waste has the potential to produce high-quality paving blocks while also supporting sustainable waste management.
Optimasi Parameter Campuran Material Paving Block Ramah Lingkungan Untuk Memaksimalkan Kuat Tekan dengan Metode Taguchi Rohmat, Rohmat; Sugiono, Didik; Hidayat, Hidayat
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 6 No. 2 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v6i2.72

Abstract

The increasing amount of industrial and domestic waste poses a serious challenge to environmental sustainability. Utilizing waste materials as substitutes in construction offers a promising solution. This study aims to optimize the composition of eco-friendly paving blocks by incorporating seashell waste and coconut coir powder using the Taguchi method. Four factors including cement, sand, seashell powder, and coconut coir powder were analyzed at four variation levels based on an orthogonal array L16 (4⁴), producing 16 experimental combinations. Compressive strength was used as the main performance parameter. The Signal-to-Noise (S/N) ratio analysis showed that coconut coir powder had the greatest effect on compressive strength, followed by seashell powder, cement, and sand. The optimal composition was obtained with 643.23 g of cement, 2289.60 g of sand, 228.961 g of seashell powder, and no coconut coir powder. Although ANOVA results indicated no statistically significant factors (p > 0.05), coconut coir powder had the strongest influence. The regression model explained 56.25% of the variation in compressive strength. These findings suggest that seashell waste can serve as a viable partial replacement material for producing environmentally friendly and cost-effective paving blocks.
Desain dan Proses Manufaktur Prototipe Mesin Pengupas, Pemotong, dan Penggiling Bawang Merah Model Portabel Ulum, Miftahul; Pratama, Febriansyah Sukma; Putra, Arrizal Eka; Syarifuddin, Imam; Sugiono, Didik
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 1 (2023): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i1.18481

Abstract

Onions undergo the processes of peeling and cutting. Home industries still use different types of independent peeling and cutting machines. In this study, a peeling, cutting, and grinding machine were designed using an adjustable peeling tube for peeling or direct cutting needs. The method used to obtain the cost of production was by analyzing the calculation of the manufacturing process, including the calculation of the component manufacturing process. The results of planning and calculating showed that the peeling force was 2.49 kgf, while the cutting force was 1.8 kgf. At a planned rotation of 700 rpm, the motor power became 117 W, so a motor with a power of 0.25 HP was used. The experiment using 1 kg of onions, the peeling time reached about 3.5 minutes and the cutting time was 20 seconds. The total machining process time gained 42.17 hours, the total machining process costs earned IDR 1,328.141, the total purchase of materials was IDR 5,220,000, and the total production cost reached IDR 6,548,141.