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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Agrointek JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis) Jurnal Ilmu Pangan dan Hasil Pertanian Industria: Jurnal Teknologi dan Manajemen Agroindustri Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Pertanian UMSB: Penelitian dan Kajian Ilmiah Bidang Pertanian Journal of Digital Marketing and Halal Industry Unri Conference Series: Community Engagement Journal of Community Engagement Research for Sustainability Sagu Journal of Engineering Science and Technology Management JP2N: Jurnal Pengembangan Dan Pengabdian Nusantara Jurnal Penelitian Hasil Hutan
Angga Pramana, Angga
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Journal : Journal of Engineering Science and Technology Management

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Paper Mill Sludge as a Substitute Material in Paving Blocks for a Sustainable Waste Management Approach Gunawan, Chandra; Fung, Liem Khe; Nul Hakim, Lukman; Wahyudi, Eko; Pramana, Angga; Zalfiatri, Yelmira
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.269

Abstract

This study evaluates the use of Paper Mill Sludge (PMS) waste as a partial replacement for fine aggregate in paving block production, focusing on compressive strength and economic feasibility. PMS was incorporated at 0%, 5%, 10%, 15%, and 20% of the total fine aggregate weight. Compressive strength tests followed the Indonesian National Standard (SNI 03-0691-1996), accompanied by production cost analysis. The results showed that 5% PMS achieved the highest compressive strength of 264.23 kg/cm², about 7.7% higher than the control 258.71 kg/cm², meeting the SNI quality class B (K200) standard. Meanwhile, 10% PMS reduced production costs by 6–8% while still satisfying the minimum requirement for K200 paving blocks (category B). This demonstrates a clear trade-off between mechanical performance and cost efficiency, where 5% PMS ensures maximum strength, while 10% PMS provides adequate strength with economic benefits. At lower levels, PMS fibers improved cement–aggregate bonding and reduced voids, whereas higher dosages (>10%) disrupted hydration and lowered strength. Practically, PMS utilization offers the paving block industry a sustainable and cost-effective alternative that reduces reliance on natural aggregates, supports waste valorization, and aligns with SNI standards for applications such as parking lots.
Analysis of Added Value Brownies Product Using the Hayami Method (Case Study: Syiaghi MSME in Pekanbaru City) Arum Rovarti Ningsih; Pramana, Angga; Putri, Nadya Novianti Dwi; Ihsan, Fikratul; Endyra, Fadlila; Masyitah, Masyitah
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i1.433

Abstract

Syiaghi MSMEs have turned their brownie business into a value-added and competitive venture. A study to analyze the added value and competitiveness of brownies produced by Syiaghi MSMEs in PekanbaruThis study applies a quantitative approach using both primary and secondary data. Primary data was collected through direct observation (survey) at Syiaghi MSMEs and interviews with business owners. Secondary data was collected through library studies and other documents. Respondents in this study were determined using the purposive sampling method. Respondents were selected based on the type of brownies marketed (baked brownies), high daily production volume, and marketing to several campuses and stores. The selected respondents were business actors from Syiaghi MSMEs in Pekanbaru City. The analysis of the added value of brownies used the Hayami method. Based on the results of the research conducted on Syiaghi MSMEs with brownie products, it can be concluded that processing flour into brownies provides positive added value. The added value obtained was IDR 398,792 with an added value ratio of 71%, which is relatively high. This indicates that the processing is able to significantly increase the economic value of the product compared to the raw materials. Syiaghi SME is able to manage the production process efficiently through a combination of raw materials, labor, technology, and appropriate packaging. The high added value contributes positively to business profits, production efficiency, and the competitiveness of brownies in the market, making this business viable and promising for further development.
Co-Authors Agus Sutikno Anthony Hamzah AR, Nur Hasnah Chandra Gunawan Dedeh Kurniasih Deliana Andam Sari Dewi Fortuna Ayu dihan, Dihan Kurnia Dodi, Ahmad Effendy, Raswen EKO WAHYUDI Endyra, Fadlila Evi Sribudiani Evy Maharani Faizah Hamzah Fung, Liem Khe Hamidi, Zikri Hamzah, Farida Hanum Hasnah AR, Nur Hasnah, Nur Helentina Situmorang Ihsan, Fikratul Illahi, Ayu Kurnia Imelda Yunita Irawan, Jeri Jayalaksamana, Maghfirah Karmaita, Yummama Masyitah Masyitah Mhd Andry Kurniawan Mursyid, Harsanto Nadya Novianti Dwi Putri Netti Herawati Ningsih, Arum Rovarti Nopiani, Yanti Nul Hakim, Lukman Purwaningtyas, Ratna Yuniar Putra, Diswanto Putri, Vivin Jenika Rahmadini Payla Juarsa Rahmah, Anania Rahmayuni Rahmayuni, Rahmayuni Ramaiyulis, Ramaiyulis Rizkiyah Ruzain, Raihanatu Binqalbi Sari Rukmana Okta Sagita Chan Seprido Seprido, Seprido Sianturi, Eben Ezer SISPA PEBRIAN Sitompul, Fitra Fatthoni Sukma R.Ab, Dodi Syabrina, El Trisia Wulantika Ultri, Ultri Vonny Setiaries Johan Yelly Zamaya Yelmira Zalfiatri