Article Per Year (5 Year)
p-Index From 2020 - 2025
4.201
P-Index
This Author published in this journals
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 Jurnal Rekayasa Konstruksi
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

Published : 38 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 38 Documents
Search

 1   2   3   4 
OPTIMASI WAKTU DAN BIAYA DENGAN METODE TIME COST TRADE OFF (TCTO) PADA PROYEK PENAMBAHAN BANGUNAN PASAR RAKYAT: TIME AND COST OPTIMIZATION USING THE TIME COST TRADE OFF METHOD IN THE PEOPLE'S MARKET ADDITIONAL BUILDING PROJECT Reno Pratiwi; Suheriah Mulia Devi; Andi Marini; Hikmah Maya Sari
Jurnal Ilmiah Teknik Sipil TRANSUKMA Vol. 4 No. 2 (2022): Jurnal Penelitian TRANSUKMA
Publisher : Program Studi Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.888 KB)

Abstract

Di daerah perkotaan terutama di kota-kota besar seperti kota balikpapan, pertambahan penduduk dan kemajuan jaman mengakibatkan semakin sulit akan lahan untuk bangunan yang memenuhi kebutuhan sehari-hari. Dalam pembangunan suatu proyek konstruksi, pengendalian biaya dan waktu proyek merupakan hal yang penting dalam proses pengolahan manajemen proyek. Proyek penambahan bangunan yang sudah ada membutuhkan 140 hari kerja kalender untuk menyelesaikan bangunan penambahan, dengan biaya pekerjan sebesar Rp.642.642.000. Analisis pengendalian dilakukan karna mengalami kelalaian konsultan perencana dalam merencanakan struktur, dimana perencana tidak memperhatikan jenis tanah dan merencanakan berdasarkan pengalaman saja yang berakibat keterlambatan. Dengan dilakukannya optimasi biaya dan waktu menggunakan metode Time Cost Trade Off (TCTO) pada proyek pembangunan penambahan KM.12 Karang Joang Balikpapan, maka waktu dan biaya optimum akibat penambahan tenaga kerja didapat pada 123,62 hari kerja dengan total biaya proyek sebesar Rp.634.106.512 dengan efesiensi waktu proyek sebanyak 16,38 hari dan efesiensi biaya proyek sebesar Rp.8.535.488. In urban areas, especially in big cities such as Balikpapan, the population increase and the progress of the times have made it increasingly difficult to land for buildings that meet daily needs. In the construction of a construction project, controlling project costs and time is important in the processing of project management. Project to add an existing building is spending 140 calendar working days to complete the addition building, with a workforce cost of Rp.642,642,000. Control analysis is carried out because the planner consultants experience negligence in planning the structure, where the planner does not pay attention to the type of soil and plan based on experience alone which results in delays. By optimizing the cost and time using the Time Cost Trade Off method in the development project for the addition of KM.12 Karang Joang Balikpapan, the optimum time and costs due to the addition of labor were obtained at 123.62 working days with a total project cost of Rp.634,106 .512 with a project time efficiency of 16.38 days and a project cost efficiency of Rp. 8,535,488.
Pengaruh Kultur Bakteri Pada Proses Biosementasi Tanah Laterit Terhadap Nilai CBR: The Influence Of Bacterial Culture On The Soil Laterite Biosementation Process On CBR Value Andi Marini Indriani; Gunaedy Utomo; Nurul Fitriyani
Media Ilmiah Teknik Sipil Vol. 11 No. 2 (2023): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v11i2.4590

Abstract

Lateritic soils have a high rate of weathering and non-uniform shrinkage. So this land is not good for construction work. Biocementation is a method of soil improvement by using the ability of bacteria that have lived in the soil to do the MCIP (Microbial-induced Calcite Precipitation) process which is obtained from the bacterium Bacillus Subtilis. This biocementation stabilization can increase the strength of the soil by adding Bacillus Subtilis bacteria as an additive to stabilize the soil. The test was carried out to determine changes in the mechanical properties of CBR Laboratory soil, by mixing 3% bacteria into the soil to be stabilized. The results of testing the CBR value of the Soaked Laboratory with one day of culture increased 4.8-fold at the 28-day curing period and increasing the CBR value of the Soaked Laboratory of three-day culture increased up to 4.9 times the CBR value before stabilization, which was 19.5%. The results of the study with stabilization using bacteria variation of 3% one-day culture increased up to 95% and increased up to 96% in three-day culture. So that it can be used as a soil material for road foundations in class B.
PENGARUH BAKTERI BACILLUS SUBTILIS TERHADAP KEKUATAN BATU BATA MENGGUNAKAN LUMPUR LIMBAH IPA Amanda Syasya Billah; Andi Marini Indriani; Gunaedy Utomo
Jurnal Teknik Sipil Vol 7 No 2 (2023): Jurnal Gradasi Teknik Sipil - Desember 2023
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v7i2.2089

Abstract

Lumpur Limbah IPA mengandung bahan kimia yang dapat menimbulkan pencemaran pada sungai. Untuk mengurangi pencemaran, lumpur limbah IPA dapat dimanfaatkan menjadi bahan pembuatan batu bata. Selain itu pada penelitian ini dalam pembuatan batu bata tidak dibakar agar tidak menimbulkan polusi udara. Batu bata yang dibuat tanpa dibakar umumnya menggunakan semen dalam campuran tanah liat. Semen sendiri dalam proses pembuatannya dapat menimbulkan limbah. Salah satu upaya untuk menghindari pencemaran adalah menggunakan bakteri Bacillus subtilis yang ramah lingkungan untuk meningkatkan kekuatan dari batu bata tanpa bakar. Tujuan dari penelitian ini untuk menguji pengaruh bakteri Bacillus subtilis terhadap kekuatan batu bata. Pada penelitian ini menggunakan tanah liat dan campuran lumpur limbah IPA sebesar 15% dari berat tanah liat. Untuk perkuatannya ditambahkan larutan bakteri sebesar 2%, 4%, dan 6% dari berat batu bata dengan umur kultur bakteri 4 hari. Kemudian dari hasil pengujian terhadap batu bata yang telah diperam selama 28 hari, kuat tekan batu bata dengan larutan bakteri 6% meningkat 59% menjadi 32,04 Kg/Cm2 dibandingkan dengan batu bata tanpa perkuatan bakteri sebesar 20,11 Kg/Cm2 Penelitian ini membuktikan potensi penggunaan bakteri Bacillus subtilis dalam meningkatkan kekuatan batu bata.
Comparative Analysis of Bearing Capacity of Pile Foundation Using Van Der Ween, Philipponnat, and Meyerhof Methods Muhammad Fitrah Hidayatullah; Andi Marini Indriani; Gunaedy Utomo
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.v10i3.3

Abstract

Soil has different characteristics so that it becomes a lot of problems in Civil Engineering construction, especially in foundation planning, it must be done carefully and use several methods as a comparison. This research is to compare the three methods of calculating the bearing capacity of bored pile foundations: Van Der Ween, Phillipponnat, and Meyerhof. The selection of an apposite method in bearing capacity analysis is important to confirm the safety of the building structure. The Van Der Ween Method is a more modern and detailed approach compared to the Meyerhof Method, it takes into account the negative impact of the lateral deformation of the pile, which improves the accuracy of its calculation. The Philipponnat Method is a method that combines aspects of both the Meyerhof Method and the Van der Ween Method, it considers load characteristics and soil properties like Meyerhof, while also accounting for lateral deflection of the piles like Van der Ween. The results show that each method has advantages and disadvantages in determining the bearing capacity of bored pile foundations. Analysis revealed factors such as pile diameter, soil depth, and maximum applied load affect the accuracy of the three methods. This research provides important insights for construction planners in selecting a suitable method for bored pile foundation bearing capacity analysis. It is recommended that soil characteristics and pile geometry be considered before selecting the most appropriate calculation method. This research can be extended by considering other methods and conducting validation through experimental analysis.
Fireless Brick Making using Water Treatment Sewage Sludge with MICP Action Evi Ari Ayu Saputri; Andy Marini Indriani; Gunaedy Utomo
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.v10i3.327

Abstract

Bricks materials used in making the walls of building. Currently, brick making has new innovations. As in this study using water treatment sludge waste and bacillus subtilis bacteria. Sludge waste done with percentage of 20% and bacillus subtilis bacteria much as 6%. The process adding bacteria called the Microbially Induced Calcite Precipitation (MICP) process. The process to increase compressive strength clay soil. The purpose study to determine effect of Bacillus subtilis bacteria on the strength bricks using mud and the strength of bricks with bacterial reinforcement. The results showed the compressive strength did not the specifications, where value of the compressive strength of bricks in accordance with SNI 15-2094-2000 is 50 kg / cm². And results of compressive strength only amounted to 22.82 kg / cm² in the 28-day curing period. For compressive strength using mixture of bacteria produces highest strength value the 4-day culture period of 28.11 kg kg/cm².
Pengaruh Microbially Induced Calcite Precipitation (MICP) terhadap Perilaku Kuat Geser Tanah Terkontaminasi Batubara Andi Marini Indriani; Gunaedy Utomo
CIVED Vol. 10 No. 1 (2023): March 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i1.362112

Abstract

Microbially induced calcite precipitation (MICP) adalah teknik perbaikan tanah dengan menggunakan mikroorganisme yang mampu mengubah dan meningkatkan sifat mekanik dan fisik. Dalam penelitian ini, uji geser langsung dengan mengacu pada standard SNI 03-3420-1994 digunakan untuk mengetahui pengaruh pengendapan calcite terhadap perilaku kuat geser tanah terkontaminasi batubara. Bakteri Bacillus subtilis sebanyak 6% ditambahkan ke dalam tanah yang terkontaminasi 5%, 10% dan 15% batubara. Bakteri yang digunakan menggunakan kultur 3 hari dimana berada pada fase stasioner. Hasil penelitian menunjukkan bahwa terjadi peningkatan yang cukup baik terhadap nilai kohesi dan sudut geser dalam sebagai parameter kuat geser setelah masa pemeraman. Stabilisasi MICP pada tanah terkontaminasi 5% batubara meningkatkan kuat geser sebesar 3 kali lipat sedangkan pada tanah terkontaminasi 10% dan 15% batubara terjadi peningkatan kuat geser masing-masing sebesar 7 dan 15 kali lipat dibandingkan dengan tanah asli.
Pengaruh Siklus Basah Kering terhadap Perilaku Mekanik Tanah Lempung Stabilisasi Biosementasi dengan Bakteri Bacillus Subtilis Andi Marini Indriani; Gunaedy Utomo; M Ryan Syahputra
CIVED Vol. 10 No. 2 (2023): June 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i2.399

Abstract

Tanah lempung mempunyai daya dukung sangat kecil sehingga banyak menjadi masalah pada pekerjaan di bidang Teknik Sipil terutama pada negara dengan 2 musim seperti Indonesia. Siklus basah kering akibat perubahan musim ini tentu akan menyebabkan perubahan pada daya dukung tanah. Pada musin panas biasanya daya dukung cukup tinggi tetapi dimusim hujan daya dukung akan sangat rendah. Perkembangan metode stabilisasi tanah semakin baik dengan munculnya beberapa ide inovatif salah satunya dengan metode stabilisasi menggunakan mikroorganisme yang dikenal dengan istilah biosementasi. Tetapi metode ini harus terus dikaji terutama pengaruh siklus basah kering terhadap perubahan nilai CBRsoaked tanah lempung. Salah stu jenis mikroorganisme yang mampu menghasilkan CaCO3 yang dapat meningkatkan daya dukung tanah adalah bakteri Bacillus Subtilis. Penelitian yang dilakukan dengan menerapkan metode curing yang berbeda dimana tanah diperam selama 14 hari dengan metode soaked yaitu dikeringkan selama 10 hari dan direndam selama 4 hari, Metode 1 Siklus A dengan cara di rendam selama 6 hari kemudian dikeringkan selama 8 hari dan metode 1 siklus B di keringkan selama 6 hari lalu dilakukan perendaman selama 6 hari dan dikeringkan selama 2 hari baru di uji untuk mengetahui perubahan sifat mekanis tanah California Bearing Ratio (CBR) dengan variasi campuran bakteri umur kultur 1 hari sebanyak 3%, 4.5% dan 6%. Hasil pengujian menunjukkan metode Soaked lebih baik dibandingkan metode 1 Siklus A dan B. Terjadi peningkatan nilai CBR dibandingkan dengan tanah asli dimana dengan metode Soaked meningkat hingga 5 kali lipat, metode 1 Siklus A sebersar 89% sedangkan metode 1 Siklus B hanya meningkat 15%.
Influence Utilization Waste Plastic Polyethylene Terephthalate on the Flexural Strength of Concrete with Use East Kalimantan Aggregate Dinda Indah Damayanti; Andi Marini Indriani; Gunaedy Utomo
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 Priskha Tri Natasya; Andi Marini Indriani; Gunaedy Utomo
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.
Kuat Lentur Beton Menggunakan Agregat Batu Petangis dan Pasir Semboja dengan Penambahan Botol Plastik Topik Wahyu Widianto; Andi Marini Indriani; Gunaedy Utomo
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4989

Abstract

Utilizing local materials is a strategic step in optimizing concrete production in East Kalimantan. There's an example supply of petangis stone and semboja sand aggregates. Apart from that, using various wastes, including plastic waste, in concrete production is also a current issue. This study aims to investigate the potential substitution of fine aggregates with PET and combine them with local materials, to understand their impact on the bending strength of concrete.  The study tested concrete bending strength using 15x15x60 cm blocks with PET plastic substitutions at 0.30%, 0.45%, and 0.60% of sand weight, comparing them with PET-free concrete. The research results show that adding 0.30 and 0.45% PET plastic bottles causes a decrease in the flexural strength of concrete. This is related to the influence of changes in the composition of the concrete mix, including factors such as uneven aggregate distribution and less-than-optimal material binding. Flexural strength increases at a percentage of 0.60% by 3.7% or 3.3 MPa and shows better results than normal concrete. So the PET percentage can be used as a recommendation in making concrete using local materials such as petangis stone aggregate and semboja sand.
Co-Authors Agus Sugianto Agus Sugianto Agus Sugianto Al Hidayat, Fauzi Amanda Syasya Billah Amirudin Ari Prayogo arlita, reggina gita Az'Zahrah, Yuninda Dinda Indah Damayanti Evi Ari Ayu Saputri Fachruddin Harami Faisal Faisal Fauzi, Muhammad Muis Gunaedy Utomo Gunaedy Utomo Gunaedy Utomo Gunaedy Utomo Harami, Fachruddin Hikmah Maya Sari Ikram, Muhammad Fadhli Dzil Ir. Gunaedy Utomo, S. T., M. T Irna Hendriyani Ismail Husein Khoiriyah, Dewi Isroul Kusuma, Santos Surya M Ryan Syahputra M. Nur Fadhillah Maslina Maslina, Maslina Muhammad Fitrah Hidayatullah Muhammad Rizqy Natalia Natalia Nur Intan Putri Nurul Fitriyani Ochtharima, Zaerima Zahira Priskha Tri Natasya Reno Pratiwi Reza Ayu Safitri Sani, Abdu Suheriah Mulia Devi Tesiana, Selina Topik Wahyu Widianto Utomo, Gunaedy Utomo, Gunaedy Utomo Vetryx, Vanessa Regina Yacub, Muh Alpian Yuninda Az’Zahrah Zaerima Zahira Ochtharima Zahwa Azizulita Aroha