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All Journal Astonjadro Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil
Insan, Muhammad Khaerul
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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STUDI PEMANFAATAN FLY ASH DAN BOTTOM ASH SEBAGAI MATERIAL STABILISASI TANAH DASAR (Studi Kasus: Pekerjaan Subgrade Untuk Jalan Lingkungan di PLTU Sulawesi Utara II, Kabupaten Minahasa Selatan, Sulawesi Utara) Insan, Muhammad Khaerul; Hariati, Feril; Taqwa, Fadhila Muhammad Libasut
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil  Vol. 3 No. 2 (2019)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v3i2.3257

Abstract

Fly ash dan bottom ash  merupakan limbah B3 yang dihasilkan dari proses pembakaran batu bara. Di Indonesia, batu bara banyak digunakan sebagai bahan bakar pada pembangkit listrik tenaga uap (PLTU). Salah satu PLTU di Indonesia yaitu PLTU Sulawesi Utara II, yang terletak di Provinsi Sulawesi Utara, Kabupaten Minahasa Selatan. Jumlah limbah yang dihasilkan cukup banyak sehingga dibutuhkan cara untuk mengurangi penumpukan fly ash dan bottom ash. Fly ash dan bottom ash dapat digunakan sebagai material stabilisasi tanah dasar. Dalam penelitian ini, diambil dua sampel tanah yang berbeda dengan komposisi penambahan fly ash dan bottom ash yang bermacam-macam. Pengujian CBR dilakukan pada tanah dengan komposisi yang paling optimum menurut klasifikasi AASHTO, yaitu tanah yang termasuk ke dalam kelas A-1 dan A-2 dengan kondisi kuat dukung tanah sangat baik hingga baik. Hasil pengujian CBR pada tanah yang telah dicampur dengan fly ash dan bottom ash adalah sebesar 19,66%, 52,22%, 21,33%, dan 40,88%. Dari hasil pengujian tersebut dapat disimpulkan bahwa penambahan fly ash dan bottom ash pada tanah dapat meningkatkan nilai CBR pada tanah asli yang semula hanya memiliki nilai sebesar 11,2% dan 5,35%.
Desain Alternatif Struktur Talang Air Beton pada Saluran Sugih, Desa Cibedug, Kecamatan Ciawi Nopiyansah, Muhammad Ilham; Hariati, Feril; Chayati, Nurul; Insan, Muhammad Khaerul
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil  Vol. 7 No. 2 (2023)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v7i2.9436

Abstract

ABSTRACT The provision of water in wet farming is very important to support optimal crop yields. The irrigation system on the Sugih Canal in Cibedug Village, Ciawi, Bogor Regency was affected by a landslide with a depth of 8 meters, which resulted in a 28 meter long canal being cut off. This study aims to plan the construction of reinforced concrete gutters with a size of 60 cm and a height of 80 cm to repair broken points. The design of reinforced concrete gutters refers to SNI 03-2847-2002. It is planned that the floor plate thickness is 20 cm and the channel wall thickness is 15 cm, using concrete with quality K-250 (fc' = 25 MPa). Based on the analysis that has been carried out, the live load is 250 kg/m, the dead load is 748 kg/m, and the factored load is 1297.6 kg/m. The maximum moment (Mmax) that occurs at the pin support is 38,281 kNm. Concrete reinforcement on the channel floor plate is in the form of main reinforcement D12-135, and reinforcement for D8-300. Reinforcement for wall plate is main reinforcement D12-115, reinforcement for D8-255.
Studi Pemodelan Gedung Laboratorium Teknik Elektro Universitas Ibn Khaldun Bogor Berdasarkan Kapasitas Ruang dan Beban Lutfi, Muhamad; Chayati, Nurul; Afrilia, Sintiya; Insan, Muhammad Khaerul; Wicaksono, Muhamad Hasan
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil  Vol. 9 No. 1 (2025)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v9i1.17333

Abstract

The Electrical Engineering Laboratory Building was built in 2017 with an existing building area of 120 m2, which is projected to serve 180 students. Based on the National Education Standards Agency (BSNP) in 2011 concerning the Draft Standards for Higher Education Facilities and Infrastructure for Postgraduate and Professional Programs states that the capacity of the lecture hall area is 2 m2 / student so that the basic building area is around 360 m2. The research objectives are to analyze the design and structure of the building regarding the capacity of the rooms and the loads that will act as well as to design and re-plan the building structure based on BSNP 2011 and SNI 1729-2020. The method used is primary data collection by direct measurement of the existing building, then analyzing the existing and planned structures with the DFBT / LRFD method using the ETABS V.21.0 application. The results of the analysis of space capacity, there are two rooms that are insufficient, which are classrooms and meeting rooms, so a new classroom is added on the second floor with an area of 40 m2 and an enlargement of the meeting room area to 50 m2. The results of the structural analysis of the existing building show failures in column sections C-48, C-51, C-50, C-43, C-38, C-33, C-28, C-66, C-26, C-20, C-11, C-3, C-45, C-41, C-35, C-30, C-31, and beam sections B-27, B-3. The results of the analysis of the planned structure using the WF 400.200.8.13 profile and the first floor beam structure elements using the WF 250.125.6.9 profile while the beam structure on the roof floor uses the WF 200.100.5.5.8 profile, the modeling analysis on the planned structure is declared safe against external forces on the building, and no structural elements have failed. The cost budget plan is calculated based on the 2021 Work Unit Price Analysis is IDR 1,547,000,000.00.
Study of Procurement of Temporary Waste Shelter Building in the Green Campus Program of Ibn Khaldun University, Bogor Lutfi, Muhamad; Chayati, Nurul; Salam, Edi Nur; Insan, Muhammad Khaerul; Shulyana, Halyatunisa Dewi
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17500

Abstract

Waste is one of the factors of environmental damage, especially in campus areas that have a lot of waste generation. Waste is also one of the factors of environmental damage in campus areas because of lecture activities that trigger a lot of waste generation. Green Metric Universitas Indonesia is a green campus program to provide information regarding the conditions and policies of each university in the world in an effort to stop global climate change through one of the waste processing methods. The purpose of the study is to create the Ibn Khaldun University Bogor Campus as a green campus in Bogor City with supporting factors in the provision of a Temporary Shelter (TPS) for Ibn Khaldun University Bogor based on SNI 19-3964-1994, SNI 2847-2019 and SNI 1727-2020. The method used is collecting primary data on land measurements, collecting waste generation data, data on the number of academics at Ibn Khaldun University Bogor and the results of interviews with the Bogor City Environmental Service to then conduct a structural analysis of the planned building using the ETABS V21.0.0 and SPColumn applications based on SNI 2847-2019 (Structural Concrete Requirements for Buildings). The results of the structural analysis of the planned dimensions of the Temporary Shelter (TPS) of Ibn Khaldun University Bogor are planned with a size of 17.5 meters x 6 meters using reinforced concrete material and with a roof covering structure using a concrete roof structure. The specifications of the TPS UIKA Bogor structural material use a concrete quality of 24.9 MPa, a yield strength of 400 MPa (threaded) and 300 MPa (plain) steel reinforcement. The column dimensions are K30x30 cm (bearing area with main reinforcement 4D14, shear reinforcement ø10-150 mm). The dimensions of the main beam are B20x40 cm (bearing area with 2D14 reinforcement, ø10-50 mm shear reinforcement and bearing area with 2D14 reinforcement, ø10-100 mm shear reinforcement). The dimensions of the child beam are B15x25 cm (bearing area with 2D14 reinforcement, ø10-200 mm shear reinforcement). The thickness of the concrete roof slab is 12 cm (two-layer and two-way reinforcement with ø12-100 mm. The output results of the structural analysis of the planned building are purple on the columns with a strength ratio of 0.90 to 0.95 and green on the beams with a ratio of 0.50 to 0.70 which indicates that the structure is safe enough for the working load. The planned budget for the TPS UIKA Bogor building is Rp 262,459,889.
The Reliability Level of Women's Dormitory Building Ibn Khaldun University Bogor Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Aryanti, Reska; Insan, Muhammad Khaerul
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.7177

Abstract

The Ibn Khaldun University Women's Dormitory Building, Bogor (ASPIKA) is a building that functions as a temporary residence for female students. The ASPIKA Building was established 13 years ago, this has resulted in several building components and structures experiencing some damage which resulted in the function of the ASPIKA Building decreasing, so an assessment of the reliability level of the building is needed. Aspects used in the assessment of the reliability of the ASPIKA Building based on the proper function of the building include aspects of architecture, structure, utility and fire protection, accessibility, and building layout taking into account the applicable SNI standards. The method used is descriptive quantitative as well as survey data of the existing building by the Minister of Public Works No. 2/PRT/M/2006 concerning Guidelines for Building Technical Requirements. The results showed that the percentage value of the building on the architectural component aspect was 95.50%, indicating the building is in reliable condition. The percentage value on the structural component aspect of the building is 96.56%, indicating that the building is still reliable. The percentage of utility and fire protection components has a value of 65% indicating that the component aspects of the building are not reliable. Unreliable factors in utility and fire protection components are influenced by an inadequate fire prevention system so more attention must be paid to these aspects. Components in the accessibility aspect get a percentage of 65%, meaning that they are less reliable, where this value is influenced by the limited access of people with disabilities to reach areas on each floor of the building. The building layout and the environment get a 100% percentage which identifies the building layout as reliable based on the documents on the ASPIKA Building. The total value of the reliability level of ASPIKA Buildings obtained is 79.41% categorized as "Less Reliable" (reliable category is > 95%), this is influenced by the fire protection component by 65% ​​and the accessibility component by 65%. The solution that can be done by the university is to repair and procure facilities on the fire protection system and provide accessibility facilities that can make it easier for people with disabilities.
Building Analysis of the Lill Hajj Wall Umrah Building Based on Functionality of the Building for Umrah and Hajj Pilgrims Lutfi, Muhamad; Chayati, Nurul; Prayudyanto, Muhammad Nanang; Insan, Muhammad Khaerul; Pratama, Septian Anggi
ASTONJADRO Vol. 12 No. 2 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i2.8144

Abstract

PT Lill Hajj Wall Umrah is targeted to get 5,226 consumers per year or equivalent to 436 people per month by 2030. The old office in the form of a shophouse with a building area of 119.75 m² for a capacity of 99 people is considered inadequate to serve 436 consumers per month, so PT Lill Hajj Wall Umrah needs a new office with a meeting room of at least 523.2 m².  A new office will be planned based on SNI 2847-2019, SNI 1726-2019, SNI 1727-2020, and PBI 1983. The planning results are in the form of an analysis of the new office structure with building dimensions of 28.30 x 23.35m, four floors with a building area of 4,503 m². The material specifications of the building structure are concrete quality (fc') 41.5 MPa, melted reinforcing steel quality (fy) 400 MPa (BJTS), and 280 MPa (BJTP). Basement floor column dimensions 0.6 x 0.6 m, first to fourth floor columns 0.5 x 0.6 m, rooftop columns 0.4 x 0.4 m, main beam dimensions 0.25 x 0.35 m, child beams 0.25x0.5 m, stair beams 0.25 x 0.35 m, roof deck beams 0.25 x 0.3 m and 0.3 x 0.4 m, concrete slab thickness 0.15 m. The results of structural modeling using the Etabs application showed that there was no over-strength (O/S) in the column and beam structure elements. The results of the design of the new office building Lill Hajj Wall Umrah in the form of a basement floor equipped with prayer room facilities covering an area of 14 m2, a generator room covering an area of 15.28 m2, a pump room covering an area of 15.28 m2, parking covering an area of 781.53 m2. The first floor is equipped with VIP room facilities covering an area of 33.33 m2, a prayer room covering an area of 25.87 m2, a toilet covering an area of 44.93 m2, and a boutique room covering an area of 55.22 m2, and a warehouse covering an area of 12.3 m2. The second floor is equipped with a meeting room covering an area of 47.9 m2, a manager's room covering an area of 36.7 m2, a toilet covering an area of 30.9 m2, a prayer room covering an area of 16.08 m2, a boardroom covering an area of 80.59 m2 and a waiting room covering an area of 45 m2. The third and fourth floors are equipped with toilets covering an area of 25.75 m2, a prayer room covering an area of 23.95 m2, and a ballroom of 383.75 m2. The estimated budget for the construction of lill Hajj Wall Umrah's new office is Rp 7.612.645.721.- and takes 406 working days for construction.
Slope Reinforcement Using Gabion Retaining Wall On Angke River In Perumahan Curug Residence Griya Elok West Bogor District Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Insan, Muhammad Khaerul; Handrianto, Yayan
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14254

Abstract

Bogor City is located between 106,480 E and 6,360 S and has an average altitude of at least 190 m, a maximum of 350 m, slope between 0.3%, 4-15%, 16-30% and above 40% with a distance of approximately 60 km from the capital, surrounded by Mount Salak, Mount Pangrango and Mount Gede. Bogor City has annual rainfall between 3500-4000 mm with an area of 4,992.30 Ha, between 4000-4500 mm with an area of 6,424.65 Ha, and between 4500-5000 mm with an area of 433.05 Ha mainly in December to January. (kotabogor.go.id). On 27 April 2019, landslides occurred due to heavy rain in Perumahan Curug Residence Griya Elok Jalan Parvi Bojong Neros RT. 03/ 07, Curug Village, West Bogor District, Bogor City. It is necessary to plan the retaining wall to mitigate the impacts of the landslide disaster. The access road in Curug Residence is an asphalt road with a width of 2.5 m, this causes only small vehicles to be able to pass in the area. In consideration of the narrow access road, heavy equipment cannot enter the Curug Residence landslide location, in order to deal with landslides, a gabion-type retaining wall will be applied. The gabion retaining wall is more efficient and practical with narrow road access because it can be done directly on site and does not require any heavy equipments. The results of the analysis of gabion retaining walls can be concluded as follows, the dimensions of the gabion retaining wall construction are 9.5 meters high, the width of the foot slab is 1.58 meters, and the thickness of the wall top section slab is 0.79 meters. After the calculation, the result of stability factor to shear is 3,624 > 1,5 and stability to bolsters is 5,858 > 1,5. Then it can be concluded that the gabion retaining wall is safe against danger of shear, bolsters and soil bearing capacity. The construction cost is Rp2.735.000.000,- and requires 127 days or 3 months and 1 week of construction work.
Slope Reinforcement Due to Landslide in Cipakancilan River, Sukaresmi Village, Bogor City Lutfi, Muhamad; Chayati, Nurul; Rulhendri, Rulhendri; Syaiful, Syaiful; Sunandar, Nandar; Insan, Muhammad Khaerul
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.19245

Abstract

In October 2022, there was a landslide in Tanah Sareal Subdistrict at Cipakancilan River, Sukaresmi Village, Bogor City. The location of the landslide occurred on the edge of the road adjacent to the Cipakancilan river, the road is an access road that connects the Regency area and the Bogor City area. The length of the landslide that occurred was 30 meters and 11.5 meters high from the Cipakancilan river water level. The construction of a retaining wall (DPT) is the right solution to maintain slope stability, namely rolling stability, shear stability and soil bearing capacity stability to restore stable slope conditions to hold the road body which can be reused as an access road for residents. This research started with an initial stage in the form of a field survey, then continued with a geotechnical investigation to determine the characteristics of the soil that experienced landslides. Based on the results of the research, it was found that the design of retaining walls of gravity type and cantilever type was analyzed using the Coulomb method for calculating lateral soil pressure and Mayerhof for calculating the stability of soil bearing capacity. For construction costs from the calculation of the cost budget plan, the results obtained for the gravity type retaining wall amounted to Rp. 1,229,923,600 (one billion two hundred twenty nine million nine hundred twenty three thousand rupiah), while the cantilever type retaining wall amounted to Rp. 1,620,913,000. 1,620,913,000 (one billion six hundred twenty million nine hundred thirteen thousand rupiah), the time of the planned implementation of gravity retaining wall work for 2.5 months or 75 calendar days, the time of the planned implementation of cantilever retaining wall work for 3 months or 90 calendar days.
Co-Authors Afrilia, Sintiya Aryanti, Reska Chayati, Nurul Fadhila Muhammad Libasut Taqwa Feril Hariati Handrianto, Yayan Muhamad Lutfi Muhammad Nanang Prayudyanto Nopiyansah, Muhammad Ilham Pratama, Septian Anggi Rulhendri Rulhendri Salam, Edi Nur Shulyana, Halyatunisa Dewi Sunandar, Nandar Syaiful . Wicaksono, Muhamad Hasan