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Pengaruh Penggunaan Batu Apung sebagai Subtitusi Agregat Kasar pada Beton Geopolimer terhadap Berat Jenis Beton dan Workabilitas Putrianti, Pratika Riris; Agustinus Agus Setiawan; Muhammad Akmal Putrawardhana
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 8 No. 1 (2024)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v8i1.14510

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STUDI PERBANDINGAN PONDASI TIANG PANCANG DAN TIANG BOR DITINJAU DARI BIAYA DAN PRODUKTIVITAS TENAGA KERJA Ningsih, Sri Aliane Rahayu; Setiawan, Agustinus Agus; Arbaningrum, Rizka
Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Vol. 7 No. 2 (2023): Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmstkik.v7i2.23888

The foundation is a sub structure element of a construction which has the function of distributing the load of the upper structure to the hard soil layer. This research has an objective to analyze the effectiveness of pile and drilled pile foundations in terms of costs and labor productivity. As a case study, the research object was taken from the implementation of the foundation structure of "X" Hospital in South Jakarta. In this research, a comparison was made regarding the choice of foundation types, between D40 cm pile foundations with a length of 18m, drilled pile foundations D60, and D80, each with a length of 20m. Based on the analysis of construction costs and time, the results show that the implementation of a D40 cm pile foundation is the most economical at a cost of Rp. 5,211,225,400.00 with a work duration of 53 days, drilled pile foundations for D60 require a cost of Rp. 6,116,965,139.00 (17.38% higher) with a work duration of 86 days, and the D80 drilled pile foundation requires a cost of Rp. 6,935,678,499.00 (33.1% higher than piles) with a work duration of 98 days. In terms of labor productivity, pile foundations are lower than drilled pile foundations. Keywords: budget; productivity; labor; pile foundation; bored pile Abstrak Pondasi merupakan unsur struktur bawah dari suatu konstruksi yang memiliki fungsi menyalurkan beban struktur atas ke lapisan tanah keras. Penelitian ini bertujuan untuk menganalisis efektifitas dari pondasi tiang pancang dan tiang bor ditinjau dari segi biaya dan produktivitas tenaga kerja. Sebagai bahan studi kasus, obyek penelitian diambil dari pelaksanaan struktur pondasi Rumah Sakit ”X” di Jakarta Selatan. Dalam penelitian ini dilakukan perbandingan pemilihan jenis pondasi, antara pondasi tiang pancang D40 cm dengan panjang 18m, pondasi tiang bor D60, dan D80 yang masing-masing memiliki panjang 20m. Berdasarkan analisis biaya dan waktu konstruksi diperoleh hasil bahwa pelaksanaan pondasi tiang pancang D40 cm adalah yang paling ekonomis dengan biaya sebesar Rp. 5.211.225.400,00 dengan durasi pekerjaan selama 53 hari, pondasi tiang bor untuk D60 membutuhkan biaya sebesar Rp. 6.116.965.139,00 (lebih tinggi 17,38%) dengan durasi pekerjaan selama 86 hari, dan pondasi tiang bor D80 membutuhkan biaya sebesar Rp. 6.935.678.499,00 (lebih tinggi 33,1% dari tiang pancang) dengan durasi pekerjaan selama 98 hari. Dari segi produktivitas tenaga kerja, fondasi tiang pancang lebih rendah dibandingkan dengan fondasi tiang bor.

PROGRAM REVITALISASI LINGKUNGAN MADRASAH RAUDLATUL IRFAN MENUJU SEKOLAH SEHAT Hayati, Dhea Difani; Setiawan, Agustinus Agus
Journal Pemberdayaan Masyarakat Indonesia Vol 6 No 1 (2024): Jurnal Pemberdayaan Masyarakat Indonesia (JPMI)
Publisher : Pusat Pengabdian kepada Masyarakat (PPKM) Universitas Prasetiya Mulya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21632/jpmi.6.1.13-21

Pendidikan merupakan aspek kompleks yang ada diberbagai negara. Sekolah yang berada di daerah Banten masih memiliki fasilitas yang kurang layak. Kondisi memprihatinkan dan sanitasi yang kurang baik akan memberikan dampak bagi kesehatan, khususnya di lingkungan Sekolah Madrasah Raudlatul Irfan, Lengkong Kulon, Banten. Pembangunan berkelanjutan (SDGs) diantaranya memiliki fokus pada kehidupan layak dan kesehatan, pendidikan yang baik serta sistem air bersih yang merupakan komponen primer kehidupan. Tujuan dari adanya kegiatan ini adalah untuk revitalisasi lingkungan sekolah menuju sekolah sehat. Metode yang digunakan dalam penelitian ini adalah metode pendekatan kualitatif melalui survei dan studi kasus. Metode yang digunakan terdiri dari wawancara dan identifikasi kebutuhan, melaksanakan renovasi kamar mandi dan revitalisasi taman sekolah yang menjadi perhatian utama. Hasil dari pengabdian masyarakat ini secara keseluruhan memberikan dampak positif bagi peserta didik dan guru di lingkungan sekolah.

PENGARUH CAMPURAN SERAT BAJA PADA BETON GEOPOLIMER DITINJAU KUAT TARIK BELAH Vahlefi M., Muhammad; Putrianti, Pratika Riris; Setiawan, Agustinus Agus
Journal of Civil Engineering and Infrastructure Technology Vol 3 No 1 (2024): JCEIT
Publisher : Civil Engineering, Faculty of Engineering, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jceit.v3i1.3728

Geopolymer concrete has decent strength, but it is still lower compared to conventional concrete. One way to improve the strength of geopolymer concrete is by adding reinforcing fibers. The fibers used should be suitable for the environmental conditions and economical. One fiber that can be used to enhance the strength of concrete is steel fiber. The addition of steel fiber to concrete can increase its density but may decrease the slump value, which can affect the workability of the concrete. In BGP 1%, the increase from 0% fiber content reaches 3.2%, and in BGP 2%, it reaches the maximum density of 2405.73 kg/m3 with the addition of fiber to geopolymer concrete. From the results, it can be observed that as the density of geopolymer concrete increases, the slump value tends to decrease.

Analysis of The Effects of Training, Motivation, Work Environment, Leadership And Compensation on Employee Performance In Generation Z In Batam City Sentoso, Antony; Setiawan, Agustinus; Vivianti, Weni
BALANCE: Economic, Business, Management and Accounting Journal Vol 21 No 1 (2024): Januari
Publisher : UMSurabaya Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/blc.v20i1.19390

Amid the company's rapid growth, various new issues continue to emerge. Therefore, the performance and potential of employees must be maximized by the business. A company's success is a direct result of the people who work there. The research aimed to determine how Generation Z employees in Batam performed in leadership, training, motivation, work environment and weaknesses. This research uses various methods to test hypotheses regarding variables that may influence the performance of Generation Z employees in Batam City. Quantitative research methods were used on 385 respondents as research samples. The collected data was checked for outliers, evaluated for data validity and reliability, checked for traditional premises (normality, multicollinearity, and heteroscedasticity), and fit for hypotheses. In Batam City, Generation Z, leadership and wage variables significantly boost employee performance, while training, motivation and work environment factors do not match the results of the hypothesis analysis

Perbandingan Penurunan Elastis Fondasi Tiang Pancang dengan Menggunakan Metode Analitis dan Metode Elemen Hingga Ningsih, Alia Adisetia; Setiawan, Agustinus Agus
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.v7i2.13757

The foundation is part of the lower structure that functions to transmit the superstructure load to the soil base which is strong enough to support it and is usually dominated by the allowable settlement limit, in order to avoid danger to the superstructure. This study aims to analyze the bearing capacity and settlement of driven pile using analytical methods and Finite Element Method using Plaxis software. This study compares variations settlement and axial bearing capacity of piles with 300 mm, 400 mm, and 500 mm diameter. Based on the results obtained, the bearing capacity of the driven pile with plaxis is 20.25 – 26.63% higher than the calculation using the Schmertmann method. In terms of settlement, the results obtained are 3.37 mm for the D 300 mm, 3.29 mm for the D 400 mm, and 3.21 mm for the D 500 mm. All three settlement are still within safe limits.

The Effect of Coconut Fibre on the Compressive and Tensile Strength of Geopolymer Concrete Burhanudin, Irsyad; Setiawan, Agustinus Agus
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.v9i1.16456

This research aims to evaluate the impact of adding coconut fiber on the compressive and tensile strengths of geopolymer concrete. The study utilized geopolymer concrete composed of a mixture of fly ash and coconut coir fiber. The research variables included the percentage of coconut coir fiber in the geopolymer concrete mix, namely 0%, 0.25%, 0.50%, and 1%. Data collection involved the fabrication of geopolymer concrete, testing of coarse and fine aggregates, and aggregate sieve analysis. The results of this study are expected to provide insights into the potential of coconut fiber in enhancing the quality of geopolymer concrete. The analysis revealed that the addition of coconut fiber can increase the tensile strength of geopolymer concrete, with a peak enhancement of 32.52% observed at the optimal proportion of 0.5%. Conversely, at 1%, a decrease of 4.64% in tensile strength was noted. Furthermore, the compressive strength of geopolymer concrete experienced improvement up to a proportion of 0.5%, showing an increase of 48.79%. However, at 1%, the tensile strength decreased by 12.43%. Therefore, the 0.5% proportion of coconut fiber is considered optimal for enhancing both tensile and compressive strengths of geopolymer concrete. This research contributes to expanding the understanding of coconut fiber usage in geopolymer concrete and provides recommendations regarding the optimal proportion of coconut fiber in the geopolymer concrete mix.

Penilaian Risiko Kesehatan Mental Rescuer dalam Mendukung Operasi Tanggap Darurat Bencana Setiawan, Agustinus; Ruslanjari, Dina; Puspitasari, Diana
Trends in Applied Sciences, Social Science, and Education Vol. 2 No. 1 (2024): Juni
Publisher : PT Hakhara Akademia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71383/tase.v2i1.25

Kesiapsiagaan status kesehatan mental rescuer Kantor Pencarian dan Pertolongan Yogyakarta adalah salah satu faktor pendukung keberhasilan operasi pencarian dan pertolongan pada masa tanggap darurat bencana di Yogyakarta. Tujuan penelitian ini merumuskan penilaian risiko kesehatan mental rescuer dalam operasi tanggap darurat bencana untuk meningkatkan kesiapsiagaan dan ketahanan mental rescuer. Penelitian dilakukan menggunakan metode kuantitatif menggunakan tes dan evaluasi menggunakan instrumen Woodworth. Responden yang dijadikan obyek penelitian yaitu seluruh rescuer Kantor Pencarian dan Pertolongan Yogyakarta. Hasil penelitian kondisi kesehatan mental berdasarkan penilaian yaitu 20 rescuer (46 %) memiliki kriteria normal 21 rescuer (49%) kriteria gangguan mental kecenderungan, dan 2 rescuer (5%) memiliki kriteria gangguan. Strategi kesiapsiagaan dan ketahanan kesehatan mental yang dapat dilaksanakan di tingkat lembaga pencarian dan pertolongan dalam kesiapan operasi tanggap darurat bencana dan krisis antara lain upaya latihan fisik secara rutin dalam keseharian rescuer untuk meingkatan level kebugaran jasmani, strategi shift bergilir yang baik sehingga rescuer dapat mengambil istirahat secara teratur, pemimpin memastikan bahwa rescuer telah dilatih mengenai langkah-langkah keselamatan, mengetahui tindakan pencegahan yang harus dilakukan, dan semua peralatan keselamatan memiliki kualitas yang memadai, dukungan sosial kepada rescuer yang mengalami cedera dan kehilangan rekan selama bencana. Rescuer setelah krisis mendapat akses mudah ke psikolog professional dan merasa nyaman dalam melakukannya.

The Effect of Waste Flex Banner Fiber on Mechanical Properties of Geopolymer Concrete Maulana, Farhan; Setiawan, Agustinus Agus
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.v9i2.19259

This research aims to design a geopolymer concrete mix with the addition of waste flex banner fiber and to study its effects on various physical and mechanical properties of the concrete. The study focuses on the influence of flex banner fiber on the density of geopolymer concrete, workability with a target slump value of 90 mm, and the compressive and splitting tensile strength with flex banner fiber additions of 0.5%, 0.75%, and 1.0% by weight of fly ash. The research method involves curing the concrete in water for 7, 14, and 28 days. The results indicate that the addition of flex banner fiber increases the density of geopolymer concrete, achieving an optimal density of 2462.83 kg/m³. This study also shows that the workability of the flex banner fiber mix in geopolymer concrete meets the target slump value of 90 mm at a 0.75% fiber addition. As the fiber percentage increases, a significant reduction in slump value occurs. At 0.5% fiber content, the slump value decreases to 110 mm, while at 1% fiber content, the slump value drops to 53 mm. The addition of flex banner fiber improves the mechanical properties of geopolymer concrete. The compressive strength of geopolymer concrete with 0.75% fiber addition increases by 4.19%. Furthermore, the optimal splitting tensile strength is achieved with a 0.61% flex banner fiber addition.

Analysis of The Effects of Training, Motivation, Work Environment, Leadership And Compensation on Employee Performance In Generation Z In Batam City Sentoso, Antony; Setiawan, Agustinus; Vivianti, Weni
BALANCE: Economic, Business, Management and Accounting Journal Vol 21 No 1 (2024): Januari
Publisher : UMSurabaya Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/blc.v20i1.19390

Amid the company's rapid growth, various new issues continue to emerge. Therefore, the performance and potential of employees must be maximized by the business. A company's success is a direct result of the people who work there. The research aimed to determine how Generation Z employees in Batam performed in leadership, training, motivation, work environment and weaknesses. This research uses various methods to test hypotheses regarding variables that may influence the performance of Generation Z employees in Batam City. Quantitative research methods were used on 385 respondents as research samples. The collected data was checked for outliers, evaluated for data validity and reliability, checked for traditional premises (normality, multicollinearity, and heteroscedasticity), and fit for hypotheses. In Batam City, Generation Z, leadership and wage variables significantly boost employee performance, while training, motivation and work environment factors do not match the results of the hypothesis analysis

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