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All Journal Journal of Indonesian Tourism and Development Studies Wacana, Jurnal Sosial dan Humaniora Jurnal Abdi Insani Jurnal Teknik Sipil Terapan Jurnal Teknologi Jurnal Konstruksi Jurnal Ilmiah Teknik (JUIT) Seminar Nasional Produk Terapan Unggulan Vokasi Sabua : Jurnal Lingkungan Binaan dan Arsitektur Journal Serambi Engineering (JSE)
Cyntha Tendean
Jurusan Teknik Sipil, Politeknik Negeri Manado
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Transportation Other

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Analisis Parameter Kualitas Udara di Lingkungan Kampus Politeknik Negeri Manado Ronsulangi, Kurnia Syalom; Lamia, Vellia Mutiara Putri; Tular, Litzi Rachel Milanisty; Punusingon, Marifat; Kojansow, Mikhael Soerioputra; Tampi, Anjelita; Umbas, Michelle Elisabeth; Abbas, Ahmad; Tendean, Cyntha; Moningka, Olivia
Prosiding Seminar Nasional Produk Terapan Unggulan Vokasi Vol 5 No 1 (2026): Prosiding Seminar Nasional Produk Terapan Unggulan Vokasi Ke-6 Politeknik Negeri
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Manado

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Abstract

OHS Work Procedure Implementation and CSMS Performance in Construction Projects Adriana Karundeng; Ahmad Yani Abas; Cyntha Tendean; Fandel Maluw; Floren Agnesia Sinaga
Jurnal Ilmiah Teknik Vol. 5 No. 1 (2026): Januari: Jurnal Ilmiah Teknik
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/juit.v5i1.1857

Abstract

High accident risk in construction projects indicates that OHS documentation alone is insufficient without consistent on-site implementation of safe work procedures. Objective: This study evaluates the implementation of Occupational Health and Safety (OHS) based work procedures and analyzes their impact on the performance of the Construction Safety Management System (CSMS) in the Architectural Christian Center construction project, addressing the gap between administrative and operational compliance. Methodology: An evaluative design with combined descriptive quantitative and qualitative approaches was applied. Data were collected through questionnaires administered to project personnel, field observations, and reviews of OHS-related documents. Analysis compared on-site practices with applicable regulations and the CSMS theoretical framework, supported by interpretation of questionnaire and observation results to identify implementation gaps. Findings: Normatively, OHS-based work procedures meet CSMS documentation requirements; however, operational implementation remains ineffective. Work procedures and Job Safety Analysis (JSA) are still treated primarily as administrative instruments and are not consistently integrated into daily work execution methods. Worker compliance is uneven: PPE use shows relatively better adherence than compliance with work procedures and JSA, indicating that risk control is still oriented toward individual protection rather than optimized through administrative controls and engineering-based work methods. Additionally, positioning OHS personnel within the contractor’s internal organization may reduce the independence and effectiveness of safety supervision due to pressures related to time, cost, and progress targets. Implications: Improving CSMS performance requires stronger integration of work procedures and JSA into routine execution, more consistent enforcement of procedural compliance, and strengthened supervisory authority to reduce reliance on PPE. Originality: This study explicitly links OHS work procedure implementation to CSMS performance while highlighting the contractor-internal OHS organizational structure as a structural factor affecting enforcement effectiveness, and provides actionable recommendations to embed safety within engineering-based construction execution methods.
Pengaruh Serat Mikro-Selulosa Bambu dan Cocopeat terhadap Karakteristik Mortar Pozzolan dengan Agregat Daur Ulang Bata Merah Minahasa Syulitary Naomi Ester Pangalila; Warda Anisa Putri; Steve Supit; Fery Sondakh; Cyntha Tendean
Jurnal Teknologi Vol 26, No 2 (2026): Agustus 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i2.9709

Abstract

The utilization of natural fibers and recycled materials in cement-based composites has gained increasing attention as a sustainable approach to improving material performance while reducing environmental impacts. This study aimed to investigate the effects of bamboo micro-cellulose, cocopeat micro-cellulose, and recycled red brick aggregate on the characteristics of pozzolanic mortar. Mortar specimens were prepared using Portland Composite Cement (PCC), fly ash, lime, metakaolin, superplasticizer, bamboo micro-cellulose, cocopeat micro-cellulose, and recycled red brick aggregate. Compressive strength, flexural strength, and porosity tests were conducted at curing ages of 7 and 28 days. The results showed that the compressive strength increased with curing age, reaching a maximum value of 20.1 MPa at 28 days. The highest flexural strength (6.3 MPa) was achieved by the pozzolanic mortar containing 1.5% bamboo micro-cellulose without recycled aggregate, whereas the incorporation of recycled red brick aggregate tended to reduce flexural strength due to its higher water absorption and the lower quality of the Interfacial Transition Zone (ITZ). In addition, all mortar mixtures exhibited lower porosity at 28 days than at 7 days, indicating the formation of a denser cementitious matrix through hydration and pozzolanic reactions. Overall, the combination of pozzolanic materials, micro-cellulose, and recycled red brick aggregate demonstrates potential as an environmentally friendly alternative mortar through the utilization of biomass and construction wastes while maintaining satisfactory mechanical and physical properties.
Co-Authors Abbas, Ahmad ADRIANA KARUNDENG Adriana Karundeng Ahmad Yani Abas Arnetha Sari Raintung Dian Puspita Sari Dwars Soukotta Fandel Maluw Fery Sondakh Floren Agnesia Sinaga Hendriek H Karongkong Kojansow, Mikhael Soerioputra Lamia, Vellia Mutiara Putri Merci Freki Hosang Micle Wala Minahasa Syulitary Naomi Ester Pangalila Moningka, Olivia Novriana Pangemanan Pandaleke, Agistia Trifena Renvi Peginusa, Stefani Switly Pinasang, Denny Boy Punusingon, Marifat Ronsulangi, Kurnia Syalom Sonny Tilaar Sonny Tilaar Steve W.M. Supit Supit, Steve W. M Tampi, Anjelita Tular, Litzi Rachel Milanisty Turniningtyas Turniningtyas Umbas, Michelle Elisabeth Wara Indira Warda Anisa Putri