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All Journal Jurnal Teknik Sipil Info-Teknik JTT (Jurnal Teknologi Terpadu) Jurnal Penelitian Pendidikan IPA (JPPIPA) Syntax Literate: Jurnal Ilmiah Indonesia Media Ilmiah Teknik Sipil Borneo Engineering: Jurnal Teknik Sipil Jurnal GeoEkonomi Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS) Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) Jurnal Ilmiah Teknik Sipil Transukma Journal of Civil Engineering and Vocational Education
Andi Marini Indriani, Andi Marini
Universitas Balikpapan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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Influence Utilization Waste Plastic Polyethylene Terephthalate on the Flexural Strength of Concrete with Use East Kalimantan Aggregate Damayanti, Dinda Indah; Indriani, Andi Marini; Utomo, Gunaedy
CIVED Vol. 10 No. 3 (2023): September 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i3.443

Abstract

Environmental pollution is still an issue that cannot be ignored. This type of waste causes environmental pollution due to its large and difficult to be recycled is Polyethylene Terephthalate (PET) plastic. So it is important to make an effort to utilize the plastic. On the other hand in the world of construction, the use of concrete increases every day causing the need for many new material sources in order to cover the needs of concrete mixtures. One of the abundant sources of aggregate is East Kalimantan aggregate but has not been used much. so combining East Kalimantan aggregate and PET plastic as a concrete constituent material becomes interesting to be analyzed, especially to determine the characteristics of the flexural strength of concrete. The flexural strength is based on SNI 03-4431-2011 method and tested at the age of 14 and 28 days. PET plastic chopped to a size of 5 cm long and 1-3 mm wide with variations 0.5%; 0.65%; and 0.8% of the weight of sand. The total number of samples is 24 blocks size of 15 × 15 × 60 cm. The results indicate that the flexural strength characteristics of concrete using local East Kalimantan aggregates and using PET plastic as a partial substitute for fine aggregate increased as the number of PET substitutions. Concrete without PET plastic has 3.187 MPa. In comparison with to normal concrete, 0.5% PET substitution increased by 3.07%, 0.65% PET variation increased by 3.63% and 0.8% PET variation increased by 4.32%.
Construction of Temporary Landfill Shield by Utilizing MICP Stabilized Water Treatment Plant Sludge Waste Natasya, Priskha Tri; Indriani, Andi Marini; Utomo, Gunaedy
CIVED Vol. 10 No. 3 (2023): September 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i3.478

Abstract

The addition of Bacillus Subtilis bacteria to the mud soil at IPAM (Integrated Wastewater Treatment Plant) Perumda Tirta Manuntung Km.8 in Balikpapan City aimed to enhance its suitability as a temporary cover layer in places like landfills. Initial mud testing revealed key characteristics: Chemical Characteristics: The mud's specific chemical composition was identified, providing a foundation for a deeper understanding of its properties. Physical Characteristics: The mud falls into the fine-grained soil category, with 63% of particles passing through a No. 200 sieve. Moisture content is high at 42.54%, primarily composed of silt (39.8%) and clay (25%). Mechanical Characteristics: Standard proctor tests yielded a maximum dry unit weight of 1.099 gr/cc and an optimum water content of 33.65%. Initial soil permeability met temporary landfill cover criteria, with a permeability value of 5.04×10-4 cm/s. Further research demonstrated that by introducing Bacillus Subtilis bacteria at varying concentrations and incubation periods, mud permeability could be altered. The highest permeability, 4.27×10-4 cm/s, was achieved with an 8% bacteria concentration and a 7-day incubation period, while the lowest permeability, 1.19×10-5 cm/s, resulted from an 8% bacteria concentration and a 28-day incubation period. These findings suggest that Bacillus Subtilis addition can modify mud permeability, making it more suitable as a temporary landfill cover. This presents a potential solution for more effective IPAM management.
The Influence of Immertion on Marshall Parameters and Residual Strength Index of Rubber Asphalt Mixture Indriani, Andi Marini; Utomo, Gunaedy; Amirudin, Amirudin
CIVED Vol. 11 No. 1 (2024): March 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i1.542

Abstract

The bad drainage system in the road pavement area also causes the road body to be submerged in water for quite a long time, causing the bond between the asphalt and aggregate to loosen, resulting in decreased service life. Developments in the field of road construction have now implemented many innovative ideas, one of which is namely the use of rubber asphalt with asphalt containing natural rubber which has 1.5 to 2 times the strength compared to conventional asphalt. In evaluating the performance of an asphalt mixture, especially the AC-WC Wear layer mixture, it can be analyzed using the Marshall test method by taking into account the conditions being tested, namely the test object being immersion in water or continuously flooded with water. The method used in this research is an experiment with treatment conditions for AC-WC rubber asphalt mixture specimens which are continuously immersion in water for 1 day, 2 days and 3 days. The research results showed that there was an increase in the VMA, VIM, and flow parameters, while the VFB, stability, and Residual Strength Index parameters decreased with increasing soaking time. Based on the research results, it can be concluded that although there is an influence on the performance of the asphalt mixture with the use of rubber asphalt, the decrease that occurs is not too large and is still within the required specifications.
Pengaruh Penggunaan Polyethylene Terephthalate sebagai Agregat Halus terhadap Kuat Lentur Beton Kusuma, Santos Surya; Indriani, Andi Marini; Utomo, Gunaedy
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 8 No. 2 (2024)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v8i2.15097

Abstract

The use of plastic in the city of Balikpapan in currently often used in daily activities, causing plastic waste in the city of Balikpapan to contribute up to 17% of the total waste production. The use of plastic in the world of construction has begun by using PET (Polyethylene Terephthalate) plastic as a concrete mixture. With its utilization, it can be a solution to reduce the production of plastic waste in the city of Balikpapan. In this research, PET plastic was used as a concrete mixture with a percentage of 0.7% and combined with local materials from East Kalimantan as a form of supporting the relocation of the state capital to East Kalimantan province. The purpose of this study was to determine the effect of using PET type plastic as fine aggregate on the flexural strength of concrete. The method used in this study is the experimental method with a test sample measuring 15x15x60 cm. The test results showed that normal concrete got a slump value of 10 cm and the PET variation was 7% 9 cm with the flexural strength test results of normal concrete with a curing period of 14 and 28 days getting a value of 3,044 MPa and 3,188 MPa, PET variations of 0.7% 14 and 28 days got a value of 2,370 MPa and 2,423 MPa, based on the results of this study it can be concluded that the use of PET plastic as fine aggregate experienced a decrease in the quality and weight of the sample due to the smooth and slippery texture of PET plastic causing the concrete mixing process to be poor.
Pengaruh Temperatur Pelelehan Plastik Polyethylene Terephthalate terhadap Kuat Tekan Eco-Paving Block Ramadhan, Atma Haical; Utomo, Gunaedy; Indriani, Andi Marini
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 9 No. 2 (2025)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v9i2.17719

Abstract

Sampah merupakan salah satu tantangan kehidupan yang kerap menjadi perhatian masyarakat Indonesia, khususnya di kota-kota besar. Peningkatan produksi sampah apabila tidak dikelola dan dimanfaatkan dengan baik dapat merusak lingkungan sekitar. Salah satu jenis sampah yang paling banyak dijumpai berasal dari sampah plastik PET seperti plastik kemasan botol minuman. Pada penelitian ini, plastik PET digunakan sebagai bahan pengganti semen pada pembuatan paving block. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik Paving Block dengan memanfaatkan plastik PET dengan suhu 240 ° C, 260 ° C, 280 ° C sebagai bahan perekat kuat tekan sesuai dengan SNI 03-0691-1996. Objek penelitian ini adalah melakukan penelitian terhadap paving block dengan campuran plastik Polyethylene Terephthalate (PET) dengan presentase 30% dengan temperatur 240 ° C, 260 ° C, 280 ° C. Hasil penelitian menunjukkan bahwa pada temperatur 280 ° C dengan variasi 30%:70% diperoleh kuat tekan dengan rata-rata 15,238 MPa masuk mutu C dibandingkan dengan variasi yang lain. Pada temperatur 260 ° C dengan variasi 30%:70% diperoleh juga kuat tekan tertinggi dengan rata-rata 15,873 MPa masuk mutu C. Sedangkan pada temperatur 240 ° C nilai kuat tekan mengalami penurunan dengan rata-rata 13,571 MPa masuk mutu C.
Analisis Kuat Tekan Beton Menggunakan Material Lokal Kalimantan Timur Dengan Penambahan Polyethylene Terephthalate Safitri, Reza Ayu; Indriani, Andi Marini; Utomo , Gunaedy
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i6.59940

Abstract

Plastic waste is a waste that is very difficult to decompose, this often causes environmental pollution. The plastic waste has a light weight and is not easy to deform. There are many types of plastic from polyethylene, One of which is PET (Polyethylene Terephthalate). In this study, a type of PET (Polytethylene Terephthalate) plastic with a width of 3mm and a length of 5mm with a test piece consisting of 80 cylinders, the test was carried out using an experimental method with compressive strength at the age of 7, 14, 21 and 28 days. The concrete mix design used the SK SNI 2384-2000 method and the planned concrete quality was 14.53MPa.The results of this study were on PET (Polytethylene Terephthalate) mixed concrete with 60 samples with variations in the percentage of PET (Polytethylene Terephthalate) of 0.7%, 0.85% and 1.0%. The highest compressive strength was recorded at a PET percentage of 0.7% at 28 days with a value of 16.05 MPa and the lowest compressive strength at a PET percentage of 1.0% at 28 days with a value of 11.67 MPa. The compressive strength decreases with the increase in plastic variety because the shape of the smooth surface of the plastic stone is not able to bind cement, the lightness of the plastic affects the weight of the concrete which continues to decrease as the amount of plastic inside and the aggregate of Petangs stone. Based on the results, the addition of PET to the compressive strength of concrete does not have a good effect.
Unfired Bricks Green Material with Microorganism Biocementation Indriani, Andi Marini; Utomo, Gunaedy; Maslina; Az’Zahrah, Yuninda; Ochtharima, Zaerima Zahira
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.9110

Abstract

The disposal of industrial sludge from Water Treatment Plants (WTP) poses environmental risks, particularly groundwater pollution. One solution is reusing this sludge in brick production, as clay use is unsustainable and may lead to shortages. This research investigates innovations in brick making, specifically using WTP sludge and the Microbially Induced Calcite Precipitation (MICP) technique with Bacillus huizhouensis to enhance brick strength. The MICP method produces calcium carbonate (CaCO₃) naturally, reinforcing bricks without harmful burning. After 50 days, compressive tests showed that bio-bricks with 15% WTP sludge and 25% bacteria achieved the highest strength of 3.79 MPa, compared to 1.49 MPa for mud bricks with only sludge. However, bio-bricks with 6% bacteria and 15% sludge reached only 1.74 MPa, with all values below the SNI 15-2094-2000 standard of 5 MPa.
Co-Authors Agus Sugianto Agus Sugianto Agus Sugianto Al Hidayat, Fauzi Amanda Syasya Billah Amirudin Amirudin arlita, reggina gita Az'Zahrah, Yuninda Az’Zahrah, Yuninda Damayanti, Dinda Indah Faisal Faisal Fauzi, Muhammad Muis Gunaedy Utomo Gunaedy Utomo Gunaedy Utomo Harami, Fachruddin Hidayatullah, Muhammad Fitrah Hikmah Maya Sari Ikram, Muhammad Fadhli Dzil Irna Hendriyani Ismail Husein Khoiriyah, Dewi Isroul Kusuma, Santos Surya M. Nur Fadhillah Maslina Maslina, Maslina Muhammad Rizqy Natalia Natalia Natasya, Priskha Tri Nur Intan Putri Nurul Fitriyani Ochtharima, Zaerima Zahira Ramadhan, Atma Haical Reno Pratiwi Safitri, Reza Ayu Sani, Abdu Suheriah Mulia Devi Syahputra, M Ryan Tesiana, Selina Topik Wahyu Widianto Utomo , Gunaedy Utomo, Gunaedy Utomo, Gunaedy Utomo Vetryx, Vanessa Regina Yacub, Muh Alpian Zahwa Azizulita Aroha