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Muhammad Mukhlisin
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Department of Civil Engineering Politeknik Negeri Semarang (State Polytechnic of Semarang) Jl. Prof. Sudarto, SH Tembalang, Kota Semarang (50275) Jawa Tengah, INDONESIA
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Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil
Published by Politeknik Negeri Semarang
ISSN : 08538727     EISSN : 25274333     DOI : http://dx.doi.org/10.32497/wahanats
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Transportation
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil or Civil Engineering Forum: Journal of Civil Engineering Development is a medium of communication and dissemination of research results, case studies, and scientific reviews (applied) to scientists and practitioners in the field of Civil Engineering. This journal is published by the Civil Engineering Department of Semarang State Polytechnic periodically 6 (six) months, ie June and December. Scopes of Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil or Civil Engineering Forum: Journal of Civil Engineering Development are: 1. Civil and Structural Engineeering 2. Environmental Engineering 3. Geotechnical Engineering 4. Transport Egineering 5. Water Resources Engineering 6. Constructions Management 7. Building Constructions. 8. Disaster Management.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 283 Documents
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ANALISIS KINERJA BETON PERMEABEL DENGAN PENAMBAHAN COCOPEAT DAN IJUK TERHADAP KUAT TEKAN UNTUK PENINGKATAN EFEKTIVITAS DRAINASE Syahwanti, Hezliana; Widodo, Muji Listyo; Irvhaneil
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 2 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i2.7054

Abstract

This research is driven by the increasing need for environmentally friendlyconstruction materials to address sand scarcity and flooding issues in Pontianak. Thestudy aims to analyze the performance of permeable concrete by incorporatingcoconut coir powder (cocopeat) and sugar palm fiber (ijuk) as partial substitutes forsand, with the goal of enhancing drainage effectiveness. The methodology involved alaboratory experiment where cylindrical concrete test specimens were created with amixture variation of 1% cocopeat and 1% ijuk by weight of sand. Subsequently,compressive strength tests were conducted at concrete ages of 7, 14, 21, and 28 days.The test results indicate a trend of increasing strength as the concrete ages, with theaverage compressive strength of the mixed concrete reaching 10.6 MPa at 28 days.Although this value is lower than that of conventional concrete, which averages 13.0MPa, the addition of cocopeat was proven to increase the porosity essential fordrainage functions. Meanwhile, the sugar palm fiber played a positive role incontrolling micro-cracks. Therefore, this permeable concrete shows significantpotential as a sustainable material for non-structural applications such as sidewalks,pedestrian paths, and light-load parking areas where water absorption is a priority.
DEVELOPMENT OF FLY ASH AND STEEL SLAG-BASED GEOPOLYMER CONCRETE TO REDUCE CARBON EMISSIONS IN CONSTRUCTION Yoganata, Yehezkiel Septian; Pratama, Ikhsan Putra; Amalia, Najla Nurrahma; Ihsani, Mohammad Amru Bil; Cahyani, Kharisma Nur; Sari, Nur Laily Lupita
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 2 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i2.7136

Abstract

The global construction sector, particularly the production of concrete structures, is a major contributor to carbon dioxide (CO2) emissions. Portland cement alone is responsible for 10% of global emissions. In response to this sustainability issue, this research aims to develop green concrete through the partial substitution of cement using fly ash and fine aggregate with steel slag, based on the similarity of the chemical composition of these industrial wastes to concrete materials. The research focuses on two objectives: producing a concrete mix formula that meets the compressive strength standard of 21 MPa and comparing CO2 emissions level. The experiment was conducted in the laboratory in accordance with SNI 7656:2012, involving the fabrication of 24 cylindrical test specimens with three variations of fly ash substitution (10%, 15%, 20%) and steel slag substitution (20%, 15%, 10%). The 28-day compressive strength test results showed that all variations exceeded the strength of conventional concrete (22.29 MPa). Specifically, Variation II (15% fly ash, 15% steel slag) achieved optimal performance with a compressive strength of 24.91 MPa. In addition to its mechanical advantages, this optimal variation also reduced carbon emissions by 15%. These findings highlight the great potential of utilizing industrial waste in producing strong and environmentally friendly concrete.
STUDI EFISIENSI VOLUME MATERIAL DAN ESTIMASI BIAYA BANGUNAN MENGGUNAKAN BIM 5D DENGAN SOFTWARE TEKLA STRUCTURES (Studi Kasus Pembangunan Gedung Perpustakaan Desa Gunung Rajak) M Ramdani Novaldi; Hafiz Hamdani; Ahmad Zarkasi
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 2 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i2.7147

Abstract

Efforts to improve the efficiency of planning and cost control in small- to mediumscale construction projects in rural areas, the digital approach through Building Information Modeling (BIM) 5D offers a promising alternative. This study aims toanalyze the efficiency of material volume and cost estimation using the BIM 5D-based software Tekla Structures, with a case study on the construction project of the Gunung Rajak Village Library Building, Sakra Barat District, East Lombok Regency. The secondary data used include Shop Drawings and the Bill of Quantities (BoQ) btainedfrom the implementing contractor. The structural modeling was carried out using Tekla Structures to automatically generate estimates of concrete volume and reinforcement weight, which were then compared with conventional methods tomeasure differences and efficiency. The analyzed structural elements include foundations, tie beams, columns, beams, floor slabs, and the roof. The results show that the use of BIM 5D produces more accurate volume and cost estimations andaccelerates the calculation process. The  ifferences in concrete volume reached 18.14%, reinforcement weight 3.05%, and roof volume 9.53%, while cost efficiency was around 14.8% compared to the conventional method. These findings indicate that the implementation of BIM 5D has the potential to improve material and budget efficiency, although its application in rural areas still faces technical and human resource constraints.

Page 29 of 29 | Total Record : 283

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