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Journal : International Journal of Engineering, Science and Information Technology

Influence of Groundnut Shell Powder on Normal Concrete's Split Tensile Strength Samsunan Samsunan; Fitria Husna Putri; Inseun Yuri Salena; Andrisman Satria
International Journal of Engineering, Science and Information Technology Vol 3, No 1 (2023)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i1.410

Abstract

Groundnut shell powder contains significant amounts of the chemical silica (SiO) to be utilized as construction materials. Through the use of groundnut shell powder, this study seeks to determine the split tensile strength of concrete (GSP). With a compressive strength design of f'c =21.7 MPa, the concrete mixture adheres to ACI 2I1.1-91. The aggregate of crushed stone with a maximum diameter of 19.1 mm. Portland cement type I is the type of cement utilized. With a variation of 0%, 5%, 7,5%, 10%, and 12.5%, additional material (GSP) substitutes cement in part. At 14 and 28 days old, concrete is tested for its tensile strength. For each modification, there are three cylindrical test objects, each measuring 30 cm in length and 15 cm in diameter. The split tensile strength of concrete was tested using 14-day-old peanut shell powder, and the results were 1,699 MPa, 1,840 MPa, 1,581 MPa, and 1,510 MPa, respectively. The findings demonstrated that concrete's split tensile strength (f'ct) was 28 days with a fluctuation of 0%; 5%; 7,5%; 10%; and the sequential 12.5% was 1,934; 2,170; 2.265; 1,958; and 1,887 Mpa. Following the findings, the ideal tensile strength value was at a variation of 7.5%, or 2,265 MPa, greater than 0% (1,934 MPa) of 17.11%. The age of 28 days was 7.5% higher than the age of 14 days (1,840 MPa) of 23.10% for the variation's maximum tensile strength. Compared to standard compressive strength test findings, the Split tensile strength value of concrete utilizing GSP is 6.83%
Daily Activity of Teuku Umar University Students Going to Campus firzan firzan; Irfan Irfan; Samsunan Samsunan; Rahmat Djamaluddin; Deni Ilham Yani
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.438

Abstract

Teuku Umar University (UTU) is a public university located in West Aceh Regency. The number of active students at UTU was recorded as 6,636 in the academic year 2021-2022. Currently, the UTU campus lacks public transportation serving its vicinity. This study aims to identify the daily activities of UTU students in commuting to the campus and to determine the extent of students' response to the implementation of public transportation services within a ±5 KM buffer zone from the UTU campus. This research utilizes two types of data analysis methods, namely qualitative descriptive and quantitative descriptive. The research findings indicate that 93.5% of students strongly agree with the concept of implementing public transportation, and 75.3% of students agree to switch from private vehicles to public transportation. The majority of daily travel activities are conducted by female students, accounting for 54% compared to 46% of male students. The modes of transportation used to reach the campus are motorcycles (56%), bicycles (6%), and walking (38%). Regarding the frequency of departure times to the campus, 41% of students depart at 08:00 AM, 23% at 09:40 AM, 15% at 10:30 AM, 12% at 11:20 AM, 6% at 01:50 PM, and 3% depart at 04:20 PM. As for the frequency of return times, 16% return at 01:30 PM, 21% at 11:20 AM, 34% at 01:50 PM, 10% at 03:30 PM, 16% at 04:20 PM, and 3% return at 05:10 PM. Based on this study, we recommend developing a dedicated public transportation service concept for UTU students. Data on students' daily activities can serve as crucial input for the future development of public transportation projects.