Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Rekayasa Sipil Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK)
Irnawan, Muhammad Chofi
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Engineering Transportation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
PERENCANAAN ULANG PONDASI PADA PROYEK GEDUNG INSPEKTORAT JAWA TIMUR KABUPATEN SIDOARJO Irnawan, Muhammad Chofi; Moch. Sholeh; Mohamad Zenurianto
Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) Vol. 3 No. 4 (2022): DESEMBER 2022
Publisher : Jurusan Teknik Sipil Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gedung Inspketorat Jawa Timur Kabupaten Sidoarjo merupakan gedung pemerintah 5 lantai dengan panjang 71,50 m, lebar 26,00 m, dan ketinggian 23,00 m yang menggunakan konstruksi beton bertulang. Tujuan dari studi ini adalah menghitung daya dukung aksial pondasi tiang bor berdasarkan Standart Penetration Test (SPT) dengan menggunakan Metode Lucciano Decourt (1982), dan Metode Reese & Wright (1977), penurunan kelompok pondasi tiang, serta Rencana Anggaran biaya dengan menggunakan harga satuan pekerjaan Kab Sidoarjo tahun 2021. Hasil perhitungan kapasitas dukung aksial izin tiang tunggal pada kedalaman 47,5 m dan diameter 0,6 m Metode Reese & Wright (1977) dan Metode Lucciano Decourt (1982) diperoleh Qall masing - masing sebesar 87,62 Ton dan 73,33 Ton. Sedangkan perhitungan kapasitas dukung aksial izin kelompok tiang dengan jumlah 4 tiang per grup dengan Metode Reese & Wright (1977) dan Metode Lucciano Decourt (1982) diperoleh Qall masing - masing sebesar 278,681 Ton dan 233,238 Ton. Penurunan yang terjadi pada kelompok tiang sebesar 116,74 mm. Serta Rencana Anggaran Biaya (RAB) yang dibutuhkan senilai Rp. 9.075.314.985,46.
Interaction of Composite Material-Based Geopolymer with Soil in Road Pavement using Finite Element Method Irnawan, Muhammad Chofi; Zaika, Yulvi; Munawir, As'ad
Rekayasa Sipil Vol. 19 No. 3 (2025): Rekayasa Sipil Vol. 19 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.03.2

Abstract

Geopolymer is an eco-friendly binder derived from natural or artificial precursors such as fly ash and slag. The purpose of this research is to investigate the response of Recycled Concrete Aggregate (RCA) with Geobead (GB) filler based geopolymer to soil in terms of vertical deflection values using Axisymmetric model Finite Element Method (FEM), which compared with unbound materials such as granular base courses or bound materials such as cement-treated base (CTB), lean concrete (LC), and foamed concrete (FC). The model was loaded with incremental static loading due to vehicle wheel load, and the pavement behavior, such as vertical surface deflection at the base layer with bonded and unbonded materials, was analyzed. The analysis indicated that using bonded materials based on geopolymer resulted in smaller deflection values when compared to base course materials. The addition of geobead affects the unit weight reduction of the pavement material. However, increasing the rise in geobead content results in a vertical deflection value due to reduced bonding between RCA grains. The deflection value of the RCA-GB-based geopolymer in all variations of GB content is below that of the granular materials. However, geopolymer-based materials with the addition of geobeads resulted in greater deflection than CTB, LC, and FC.
Co-Authors Moch. Sholeh Mohamad Zenurianto Munawir, As'ad Yulvi Zaika