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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Rekayasa Sipil JURNAL SIPIL SAINS JURNAL SIMETRIK IJEBD (International Journal Of Entrepreneurship And Business Development) Journal of Science and Engineering Jurnal Serambi Engineering Jurnal Teknik Sipil dan Teknologi Konstruksi Journal Of Khairun Community Services East Asian Journal of Multidisciplinary Research (EAJMR) CLAPEYRON: Jurnal Ilmiah Teknik Sipil Jurnal Pengabdian Khairun
Raudha Hakim
Teknik Sipil, Universitas Khairun
Religion Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

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Analisis Faktor Keterlambatan Dominan Pada Proyek Pemeliharaan Jalan (Studi Kasus: Jalan Seksi Sp. Dodinga – Sofifi – Akelamo – Payahe – Weda) Abdul Hamid Payapo; Nurmaiyasa Marsaoly; Abdul Gaus; Ichsan Rauf; Raudha Hakim
Jurnal Serambi Engineering Vol 8, No 2 (2023): April 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i2.5762

Abstract

Road maintenance work or road preservation is very important to be carried out as a government effort to maintain the functional sustainability of the road. The delay in the implementation of this activity will not only have an impact on accessibility between regions, but will also cause losses for the contractor and project owner. The factors causing delays in the implementation of road preservation work vary widely and are different in each region. Thus, an understanding of these factors will provide important information in the management of future projects. This study conducted to analyze the dominant factors that cause the delays of road preservation projects in North Maluku, where the case study is in the Sp. Dodinga – Sofifi – Akelamo – Payahe – Weda, this road has length of ± 141 km. Respondents in the study are people who are directly involved in the implementation of this work. A statistical approach was carried out in this study, where the independent variables used included: Finance (X1), Human Resources (X2), Materials (X3), Equipment (X4), Work Implementation Methods (X5), Design Changes (X6), and Work Environment (X7), while for the dependent variable is Time (Y1). The results of this study indicate that the dominant factors influencing the timely completion of road preservation work at the study location are Finance (X1), Human Resources (X2), Materials (X3), and Equipment (X4) with a percentage value of 43.89%.
EFEK PENGGUNAAN PASIR BATU APUNG SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS PADA CAMPURAN BETON RINGAN Abdul Gaus; Mufti Amir Sultan; Raudha Hakim
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 12 No. 1 (2023)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.12.1.5269.8-13

Abstract

Lightweight concrete is obtained using pumice sand as a substitute for fine aggregate. The expected advantage of lightweight concrete is to reduce the self-weight of the concrete, which is a dead load on the structure. This study aims to determine the effect of using pumice sand on concrete volume weight, compressive and tensile strength. Research methods with testing in the laboratory. The test object used is cylindrical with a height of 30 cm and a diameter of 15 cm, according to SNI-03-1974. The coarse aggregate of pumice and the fine aggregate of pumice sand were sourced from the Dowora quarry on Tidore Island. Fine aggregate in control specimens using normal sand from the Kalumata quarry on Ternate Island. Using pumice sand as fine aggregate with a ratio of 75% normal sand, 20% pumice sand, 50% normal sand and 50% pumice sand, 25% normal sand and 75% pumice sand, and 100% pumice sand. Control test object using 100% normal sand. Each variation of the test object is ten pieces, so that the total test object is 50. The results of this study indicate that the volume weight decreased along with the addition of pumice sand weight into the concrete mixture. Therefore, If the volume of concrete produced is < 1900 kg/m3, the concrete is classified as lightweight. The resulting compressive strength of 56.63 kg/cm2 decreased to 81.10% of the control test object. The split tensile strength of concrete is 1.13 kg/cm2, or a decrease of 52.05% of the control test object. Based on the compressive and tensile strength, concrete is categorized as lightweight structural concrete as an insulator.
Co-Authors Abdul Gaus Abdul Hamid Payapo Arbain Tata Dinar Tuakia Farah Nur Muhammad Gaus, Abdul Imran, Imran Inggrayani Anggreni waiola Iswandi Muhammad Jamalun Togubu Juniar Perkasa Setia Laksana Kurniawan Kurniawan Marsaoly, Nurmaiyasa Mufti Amir Sultan, Mufti Amir Nurul Ilma Sukardi Rauf, Ichsan RR. Ella Evrita Hestiandari Sabaruddin Sabaruddin Sabarudin Siti Hadija Goraahe Sufiati Abdullah Syamsuddin Do Taher