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Handayani, Anjas
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Analysis of Supply Chain Management Performance using SCOR and AHP Methods In Green Avenue Apartments of East Bekasi Handayani, Anjas; Setyatama, Christianto Yuppie
Journal of Applied Science, Engineering, Technology, and Education Vol. 1 No. 2 (2019)
Publisher : Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.676 KB) | DOI: 10.35877/454RI.asci1241

Abstract

This study analyzes the performance of a company's supply chain as measured by an approach using the SCOR method or the Supply Chain Operations Reference. SCOR is divided into 5 basic supply chain management processes, namely plan, source, make, deliver and return. Due to schedule delays of 3%, it is affected by the late delivery of raw materials ordered from suppliers and the quality of raw materials is below standard. Performing a performance measurement approach is also supported by the Analytical Hierarchy Process (AHP) method to determine the weight of each performance indicator and is calculated using the Expert Choice v11 program in this study. The purpose of this study was to determine how much value the PT Adhi Commuter Properti supply chain performance and what performance indicators should be improved. The results of the study resulted in a 75.444 overall supply chain performance achievement score of the GOOD category in achieving total company performance appraisal and priority improvement recommendations of 4 performance indicators that are expected to help improve the company's supply chain performance, namely the fulfillment of raw materials, structures, defective products and demand that the company can fulfill.
The Influence of Precursor to Activator Ratio and Curing Temperature on Geopolymer Paste with One-Part Method Widayanti, Ari; Ekaputri, Januarti J.; Amini, Iqlima N.; Petrus, Himawan T. B. M.; Putri, Anandita Ade; Soemitro, Ria A. A.; Handayani, Anjas
Civil Engineering Journal Vol. 11 No. 7 (2025): July
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-07-014

Abstract

Geopolymer is an eco-friendly material that serves as a sustainable alternative to Portland cement in construction. This binder reduces carbon dioxide emissions from cement production. However, its manufacturing process remains complex and requires professional expertise. This study explores an environmentally friendly cement produced through the “One-Part Method” (or the “just add water” method), which simplifies geopolymer application, making it as user-friendly as Portland cement. However, research on the performance of one-part geopolymers with varying activator contents and curing temperatures remains limited. In this study, Class F fly ash was used as a precursor, combined with a dry activator made from geothermal sludge and sodium hydroxide (NaOH). Two compositions were tested with precursor-to-dry activator ratios of 5:1 (OPG-F5F) and 7:1 (OPG-F7F). The compressive strength was significantly influenced by the Si/Al, Na/Si, Na/Al, and water/solid ratios derived from the precursor and activator. Mechanical properties were analyzed at three curing temperatures: ambient, 40°C, and 60°C. Results showed that OPG-F7F achieved the highest strength at 60°C, reaching 76.1 MPa at 28 days. Mineral analysis before and after steam curing revealed no changes in composition, while morphological analysis indicated that higher temperatures produced a denser geopolymer matrix. These findings demonstrate the strong potential of geopolymer cement as a viable Portland cement replacement using the One-Part Method.
Co-Authors Amini, Iqlima N. Anandita Ade Putri, Anandita Ade Ari Widayanti Ekaputri, Januarti J. Petrus, Himawan T. B. M. Ria A. A. Soemitro, Ria A. A. Setyatama, Christianto Yuppie