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All Journal Jurnal Konstruksi Jurnal Teknik Informatika (JUTIF) Jurnal Konstruksi Jurnal Kendali Teknik dan Sains
Eko Walujodjati
Institut Teknologi Garut
Civil Engineering, Building, Construction & Architecture Computer Science & IT

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Pengujian Kuat Tekan dan Kuat Tarik Belah Beton Dengan Bahan Tambah Limbah Polyvinyl Chloride (PVC) Tri Yogi Wibowo; Eko Walujodjati
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2376

Abstract

PVC is a thermoplastic polymer that ranks third in global usage, after polyethylene and polypropylene. Polyvinyl Chloride (PVC) is one of the most difficult types of plastic to recycle. Utilizing this waste efficiently presents a significant challenge; however, if PVC waste can be technically proven suitable as a material or aggregate in concrete mixtures, it could help reduce environmental pollution. The purpose of this study is to examine the effect of PVC waste as an additive on the compressive and splitting tensile strength of concrete. The research was carried out experimentally in a laboratory setting, using three variations of concrete mixtures: normal concrete, concrete with 3% PVC, and concrete with 6% PVC, based on the weight of the coarse aggregate. A total of 18 samples were prepared, with a planned concrete strength of fc’ = 20 MPa. Concrete testing was performed at 28 days of curing, referring to the Indonesian National Standard SNI-03-1974-2011. The results showed that the average compressive strength values were 11.31 MPa for normal concrete, 13.58 MPa for concrete with 3% PVC, and 16.59 MPa for concrete with 6% PVC. In contrast, the average splitting tensile strength values were 4.29 MPa for normal concrete, 3.70 MPa for concrete with 3% PVC, and 3.11 MPa for concrete with 6% PVC. These findings indicate that the addition of PVC waste improves compressive strength but reduces tensile strength, suggesting that while PVC waste can enhance certain structural properties, it does not meet the requirements for tensile reinforcement in concrete mixtures.
Analisis Pengaruh Variasi Penempatan Dinding Geser Terhadap Perilaku Struktur Gedung Akibat Beban Gempa Irfan Hidayatullah; Eko Walujodjati
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2605

Abstract

Indonesia is located in the Pacific Ring of Fire, so it has many active faults that increase the risk of earthquakes, including in Tasikmalaya. To reduce damage to buildings caused by earthquakes, earthquake-resistant structural planning is required, one of which is the use of shear walls. This study aims to analyze the effect of varying shear wall placements on base shear forces, inter-story drifts, and P-Delta effects. The analysis was performed numerically using ETABS (Student Version) software with the response spectrum method based on SNI 1726:2019. Three shear wall placement models were used: model 1 according to existing conditions, model 2 in the middle of the building, and model 3 at the corner of the building. The analysis results show that model 2 provides the best response. The base shear force reached 1,422.6 kN, the inter-story drift was 7.49 mm in the X direction and 5.46 mm in the Y direction, remaining below the maximum limit. The P-Delta effect in model 2 was also the lowest and most consistent, with a maximum value of 0.0031 in the X direction and 0.0022 in the Y direction. Therefore, placing shear walls in the center of the building was most effective in improving the structure's performance against seismic loads. These findings can provide practical input for structural designers in determining the placement strategy for shear walls in multi-story buildings in earthquake-prone areas.
Pengaruh Karakteristik Lalu Lintas terhadap Kondisi Perkerasan Jalan Menggunakan IRI dan SDI Subhan Mulyana; Eko Walujodjati; Salma Fauzyah
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2871

Abstract

Population growth and increased economic activity have led to higher traffic volumes on roads, including on Jalan Limbangan–Leuwigoong in Garut Regency. This condition puts excessive pressure on flexible pavements, causing damage, reducing driving comfort, and increasing maintenance costs. This study aims to analyze the effect of vehicle volume and speed on road conditions using the International Roughness Index (IRI) and Surface Distress Index (SDI) indicators. Data were collected through traffic surveys, speed measurements, the RoadLab Pro application for IRI, and visual surveys based on Bina Marga guidelines for SDI. Simple linear regression analysis was used after classical assumption tests were not met in multiple regression. The results showed that vehicle volume and speed did not significantly affect IRI. Conversely, both had a significant effect on SDI, with a strong relationship: volume (R = 0.740; R² = 54.8%) and speed (R = 0.759; R² = 57.5%). This study confirms that traffic characteristics have a greater effect on road surface damage (SDI) than road roughness (IRI).
Co-Authors Ade Linda Nurliana Ade Sutedi Adhitya Surya Pratama Adi Susetyaningsih Agus Ismail Andi Setiawan Anggi Ahmad Mulyadi Asti Sri Listiani Bayu Zamzam Nurjaman Cepi Wendiki Alamsyah Dandi Fahrul Akmal Danil Andriansyah Daniswara Devi Maulana Ibrahim Dina Auliani Dini Destiani Siti Fatimah Erik Zulkarnaen Fajar Abdul Sidiq Fikri Padhlurohman Ginsa Rustira Hadi Nurhuda Hafid Mohamad Fadilah Henda Riyana Hilmi Aulawi Ida Farida Intan Nuriskha Rachma Irfan Hidayatullah Irpan Rifandi Mahdi Hakiki Mega Azahra Yusuf Mirza Fathir Moh Lutfi Lukman Mubaroq Muhammad Iqbal Sudano Muhammad Wildan Ubaidillah Muhammad Zaki Fahmi Nugi Abdul Chalid Nurhayati Iqbaliah Rafiqan Mochammad Ghilman Rama Pratama Rewilla Aryanti Ricky Muhammad Yany Rika Banowati Rima Siti Rohimah Rinrin Siti Ratna Purinur Ripan Maulidan Roby Ramda Nurputra Roestaman Roestaman Roestaman Roestaman Sali Marsalina Salma Fauzyah Satrio Putra Rahadian Selpiana Apriani Sopyan Sauri Al Qurthubi Subhan Mulyana Sulwan Permana Tri Yogi Wibowo Widianti Sri Anjani