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All Journal Jurnal Perencanaan Wilayah Media Ilmiah Teknik Sipil Sultra Civil Engineering Journal (SCiEJ)
Hujiyanto, Hujiyanto
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Social Sciences Transportation

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Tinjauan Kinerja Layanan dan Kepuasan Penumpang Angkutan Penyeberangan Pure - Raha Lakawa, Irwan; Hujiyanto, Hujiyanto; Syamsuddin, Syamsuddin; Razmi Noris, Muhamad
Sultra Civil Engineering Journal (SCiEJ) Vol 5 No 1 (2024): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v5i1.595

Abstract

The Pure-Raha ferry port in Southeast Sulawesi Province is a port that serves passenger and goods crossings connecting the mainland of Buton Island and Muna. Good service quality is one of the determining factors for the company's success. The research method is structured through interviews with respondents by answering the questions in the questionnaire. The analysis used uses Importance Performance Analysis (IPA) and Customer Statistics Index (CSI). The research results show that the consumer satisfaction index for the service performance of the Pure-Raha ferry port in Southeast Sulawesi Province is 0.71. This shows that consumers are satisfied with the quality of port services by 71%. However, the management needs to create a special queue for motorbike riders.
Analisis Pengaruh Ukuran Maksimum Agregat Kasar Terhadap Kuat Tekan dan Porositas Pada Beton Normal Hujiyanto, Hujiyanto; Lakawa, Irwan; Hakiman, Hakiman; Paembonan, Marhcel Yupi
Sultra Civil Engineering Journal (SCiEJ) Vol 5 No 2 (2024): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v5i2.676

Abstract

Concrete is a very popular building material used in the world of construction services, consisting of a mixture of Portland cement (PC) or other hydraulic cement, fine aggregate, coarse aggregate and water, with or without the use of additional materials that form a solid mass. This test is a research study in the laboratory by examining the materials that make up concrete including aggregate sieve analysis testing, water content testing, mud content testing, unit weight testing, aggregate specific gravity testing, coarse aggregate wear testing, slump testing and compressive strength testing, porosity testing, which is carried out according to the SNI method. Based on the results of the research carried out, it was found that the average compressive strength value of concrete for two different types of crushed stone material, for a gradation of 1-2 cm with moramo crushed stone material was 17.94 Mpa and pondidaha material was 18. 41 Mpa. And for a gradation of 2-3 cm, the average compressive strength for moramo crushed stone was 16.90 Mpa, while for pondidaha crushed stone it was 17.46 Mpa
Uji Kuat Tekan Mortar Dengan Substitusi Abu Batu Moramo Pada Campuran Mortar Pasir Halus Sabulakoa: Compressive Strength Test Of Mortar With Moramo Stone Ash Substitution In Sabulakoa Fine Sand Mortar Mixture Hujiyanto, Hujiyanto; Lakawa, Irwan; Ilham, Vickky Anggara
Media Ilmiah Teknik Sipil Vol. 13 No. 1 (2025): 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.v13i1.7767

Abstract

Mortar mixture is an important element in civil/construction work. As a binding agent, mortar mixtures are widely used in various types of work with different strength levels according to their needs. Many sand raw materials are often used but do not meet the material requirements, either grain gradation or other requirements. In this research, a compressive strength test was carried out using fine sand with the addition of stone ash, to test how much strength was achieved with varying percentages of additional stone ash. The manufacture of test specimens for this mortar mixture refers to SNI 03-6882-2002. Testing was carried out at 7 days, 14 days and 28 days. With additional variations of 0%, 20%, 40% and 60% stone ash. The results of this research are mortar mixtures with the addition of 20% stone ash will increase the compressive strength from 4.74 MPa without the addition of stone ash to 7.13 MPa, tending to decrease at an additional 40% the compressive strength is 6.96 MPa and at an additional 60% the strength is obtained. press 5.74Mpa. The simple regression equation for the relationship between the addition of the percentage of stone ash (variable x) and the compressive strength value (variable y) is y = -22.578x2 + 14.97x + 4.8122 with the coefficient of determination R2 = 0.97 (very strong).
Co-Authors Adris Ade Putra Ardika, Made Edward Ngii Fikri Aris Munandar Gunawan Gunawan Harjunan, Harjunan Hawa, Sitti Hendriyansa, Muh. Ilham, Vickky Anggara Irvandi Cahyadi, I Made Jassin, Andi Makkawaru Lakawa, Irwan Maisara, Maisara Muhammad Muhsar, Muhammad Paembonan, Marhcel Yupi Pratiwi, Nadya Ayu Razmi Noris, Muhamad Saputra, Muhammad Roni Anwar Sufrianto, Sufrianto Sulaiman Sulaiman Syamsuddin Syamsuddin Yusnianti, Yusnianti