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All Journal Jurnal Akuntansi dan Pajak Biosfer: Jurnal Pendidikan Biologi Rancang Bangun International Journal of Community Service Learning KREATIF : Jurnal Ilmiah Prodi Manajemen Universitas Pamulang Shell Civil Engineering Journal Journal of Indonesian Scholars for Social Research Jurnal Sistim Informasi dan Teknologi Jurnal Karajata Engineering Edutainment : Jurnal Ilmu Pendidikan dan Kependidikan Indonesia Journal of Engineering and Education Technology (IJEET) Jurnal Pengabdian Masyarakat Cendikia Jenius Serambi Engineering MALA IN SE : JURNAL HUKUM PIDANA, KRIMINOLOGI DAN VIKTIMOLOGI Jurnal Pendidikan Dasar Jurnal Kajian Budaya & Media Media Sains Journal of Golden Generation Education
Jasman
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Journal : Serambi Engineering

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Ratio of Compressive Strength to Tensile Strength of Sea Sand and Sea Water Concrete With Propane Admixture Muh Rizwan; Jasman; Adnan
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The need for concrete materials in construction is increasing, especially in coastal areas that often require concrete with special characteristics to deal with maritime environmental conditions; one of the challenges in development in the region is the limited availability of fresh water, so the use of seawater as an alternative in mixing concrete is a potential choice. In addition, abundant sea sand is also considered an economical fine aggregate material. The purpose of this study was to determine the effect of additives on the ratio of compressive strength and splitting tensile strength of concrete using sand and seawater as basic materials. This research method uses an experimental research method, namely by comparing normal concrete with Additive concrete to find out how the compressive strength and splitting tensile strength of concrete are. The results of the study showed that the compressive strength and splitting tensile strength test of normal concrete with additives, the results of the concrete compressive strength test at the age of 7 days increased by 16.84 Mpa, the age of 14 days by 8.93 Mpa, while the age of 28 days increased to 6.28 Mpa. In the splitting tensile strength test, concrete also experienced an increase at the age of 28 days by 0.400 MPa of normal concrete with an average of 22.64 MPa. So it can be concluded that concrete using additives reaches the planned compressive strength and splitting tensile strength and is suitable for use.
Kinerja Pelayanan Moda Transportasi Online Roda Dua Wilayah Layanan Kabupaten Pinrang (Kurir Online) Sri Yuliana Wali; Jasman; Misbahuddin
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This study aims to examine the operasional performance of online motorcycle courier services and the factors considered by consumenrs when choosing online motorcycle courier services. Customers who have utilized online courier services are the subject of this research employing the Importance Performance Analysis (IPA) approach to determine that there are 90 respondents. The results show that 90 customers are mostly female (60%), have a high school education (62%), work as students (37%), are aged 21-30 years (54.4%), own a motorcycle as their private vehicle (82%), have an income of ≤ Rp. 1,000,000 (43%), make choices based on products (54%), use services once a week (36%), and order online courier services during the day (11:00 AM – 2:00 PM WITA). For the Importance Performance Analysis (IPA) method, the average expectation level is 4.65 and the average performance level is 4.03. From the IPA quadrant diagram, one indicator that needs improvement falls into Quadrant I. Five indicators that need to be maintained are in Quadrant II, five indicators with still low priority are in Quadrant III, and one indicator considered excessive falls into Quadrant IV. Consumer considerations in selecting online courier services are based on reasons where the majority of respondents state that safe and comfortable service accounts for 52%, and the advantages of using online courier services due to easy ordering account for 46%.
Co-Authors Abd. Rahim ABDUL MUIS Adnan Akbar, Faqihuddin Muhammad Andi Ibrahim Anselmus Kabuhung Ardiyanto Maksimilianus Gai Bahruddin Bangngu, Nolvan. C. Bucky Wibawa Karya Guna Dama, Waldetrudis. V. Diding Rahmat Dirhamsyah Eko Indrawan Ervina Aprilia Fadly, Imam Fatahillah, Fajrin Fatwa, Abdul Halil Febrian, Muhammad Ivan Gradiana, Bete Haikal, Muhammad Fikry Hamka Handa, Muhamad Idham Haribowo, Rio Hasan, Haslinda Hasddin Huda, Nusulul Husna, Riska Latifatul Ilham Samanlangi Imakulata, Mbing. M. Iradhatullah Rahim Irzal Joy V.I. Sambuaga Junil Adri Kasimir, Sarifudin Katiandagho, Dismo Lalangpuling, Indra Elisabet Linda Augustien Makalew Loso Judijanto Mansida, Amrullah Mardani Supranata Michael V. L Tumbol Millati, Rida' Misbahuddin Muammar Khadafi Muh Rizwan Muhammad Ade Kurnia Harahap Mukaddas, Jamal Nikmah Nurmila Sunati Otto, Martin Pratiwi MK Primadi Candra Susanto Putra Husin, Osu Oheo Putra, Aditia Olanta Rahmatullah, Fuad Remon Lapisa Santrum, Mario. J. Semuel Layuk Setyo Oetomo, Dedy Sri Yuliana Wali Sudirman Suwarja Syamsia Syamsu Alam Syaparuddin Syukri, Fitriyani Taufik Tukan, Etheldrida S. T. Widarto, Hendro Wiltin, Gabriela. F. Winda Ramadhani Yantony, Didit Yusnaeni Zulkifli