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All Journal International Journal of Research in Vocational Studies (IJRVOCAS)
Oktaviani, Tetra
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Effect of Compressive Strength of Red Brick with the Addition of Carrageenan Nofriadi; Dary, Rhini Wulan; Oktaviani, Tetra; Putri, Wirdatun Nafiah; Putra, Heriansyah
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.82

Abstract

Red brick is one of the building materials used to make building walls. Red bricks are made from clay and can be mixed using additives. The use of clay has the most composition in the red brick mixture. Adding addictive materials is an effort that many researchers have made to improve the quality of red bricks. In this study, researchers were interested in using carrageenan as a mixture of red bricks. The research was carried out experimentally in the laboratory by making brick samples measuring 5 cm x 5 cm x 5 cm with various mixtures of BMC (control), BMK5 with the addition of 5% carrageenan, BMK10 with the addition of 10% carrageenan, and BMK15 with the addition of 15% carrageenan with drying temperature 50°C, 100°C, and 150°C for 24 hours.Research data was obtained through an experimental process of testing the compressive strength of red bricks using a compression test equipment. The data obtained was processed to obtain the compressive strength value of the red brick. The results showed that addition of 5% of the carrageenan mixture had an effect on the compressive strength of the red brick. Addition of 5% carrageenan contributed to the increase in the compressive strength of the red brick. There was a decrease in the compressive strength of the red brick in the sample with the percentage of addition carrageenan by 10% and 15 %. The ideal drying temperature for a mixture of red bricks with carrageenan is at 50℃ for 24 hours.
Transportation Arrangement as a Basic Plan for Politeknik Negeri Medan to Become an Environmentally Friendly Campus Putri, Wirdatun Nafiah; Kusumadi; Oktaviani, Tetra; Ritonga, Efri Debby Ekinola; Anif, Bahrul
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 4 (2024): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i4.255

Abstract

A green campus becomes one of the approaches to overcoming global warming. The green campus evaluation program currently being conducted by Universitas Indonesia is the UI GreenMetric World University Rankings, and one of the categories is transportation. One of the main contributors to pollution levels and carbon emissions is the transportation sector and is potentially to continue to rise unless sustainable prevention efforts are made. With its limited area, Politeknik Negeri Medan needs a more effective transportation arrangement to make it an environmentally friendly campus. Greenmetric assessments are conducted on existing conditions referring to the UI GreenMetric World University Rankings 2023 Guidelines with several criteria, namely the total number of vehicles (cars and motorcycles) divided by total campus population, shuttle services, zero emission vehicles (ZEV) policy on campus, the total number of zero emission vehicles (ZEV) divided by total campus population, ratio of ground parking area to total campus area, program to limit or decrease the parking area on campus for the last 3 years (from 2020 to 2022), number of initiatives to decrease private vehicles on campus, and pedestrian path on campus. The scoring result in the existing conditions is 725, or only about 40.3% of the total maximum value. GreenMetric scoring will increase to 1250 or 69.4% by implementing solutions for transportation arrangements in Politeknik Negeri Medan. The solutions are the use of access cards to filter unauthorized vehicles into the campus area, providing official vehicles electric cars and bicycles for use in the campus area, reducing the ground parking by making a vertical parking, utilizing buses as shuttle facilities for the academic community around the campus with a certain radius to reduce the use of private vehicles and supplementing existing pedestrian paths according to standards of safety, comfort and disability-friendly aspects by adding handrails, roof covers, directions, ramps for disabilities.
Co-Authors Anif, Bahrul Kusumadi Nofriadi Putra, Heriansyah Putri, Wirdatun Nafiah Rhini Wulan Dary Ritonga, Efri Debby Ekinola