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All Journal Jurnal Darma Agung Jurnal Visi Eksakta Jurnal Penelitian dan Pengabdian Masyarakat Jotika

Saragi, Tiurma Elita

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Author-ID : 1766760

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health Social Sciences Other

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KAJIAN TERHADAP SIFAT FISIS TANAH GAMBUT LINTONG NIHUTA KABUPATEN HUMBANG HASUNDUTAN Panjaitan, Surta Ria Nurliana; Saragi, Tiurma Elita; Simanullang, Parlindungan; Panjaitan, Paradius
JURNAL DARMA AGUNG Vol 32 No 1 (2024): FEBUARI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v32i1.3940

Indonesia mempunyai daerah lahan tanah gambut yang tergolong cukup luas yang ada di beberapa propinsi yaitu pulau Kalimantan, Sulawesi, Papua, dan Sumatera. Gambut atau peat, adalah pencampuran bahan organik dan tumbuh-tumbuhan yang sudah melapuk atau membusuk. Perkembangan yang semakin pesat yang berhubungan dengan pekerjaan teknik sipil yaitu pembangunan gedung dan jalan. Tujuan penelitain ini adalah untuk mengetahui klasifikasi tanah gambut, sifat fisis tanah gambut, yang diambil dari Lintong Nihuta. Metode eksperimen di laboratorium yang digunakan untuk menguji sampel gambut . Prosedur pengujian mengikuti standar ASTM D3080/ SNI 3420 -2016). Gambut yang diteliti mengandung kadar organik yang tinggi yaitu 56,54%, kadar abu yang rendah 2,34% maka gambut diklasifikasikan sebagai Low Ash-peat, berdasarkan kadar serat 27,32% dikelompokkan pada fibrous peat dan digolongkan tanah gambut setengah matang atau Hemik.

Peran Mahasiswa Kuliah Praktek Dan Pengabdian Mahasiswa (Kppm) Kepada Masyarakat Di Desa Gala Gala Pangkailan Kec. Porsea Sitohang, Agustina; Nababan, Albert Nathanael; Pinayungan, Sindi Claudia Br.; Sinaga, Eka Risma Febiola; Mendrofa, Mikhael Gidion Hamonangan; Saragi, Tiurma Elita
Jurnal Penelitian dan Pengabdian Masyarakat Jotika Vol. 5 No. 1 (2025): Agustus
Publisher : Jotika English and Education Center

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Artikel ini membahas tentang pentingnya menciptakan suasana belajar yang menyenangkan pada Pendidikan Anak Usia Dini (PAUD) melalui sarana bermain kreatif. PAUD berperan penting dalam pengembangan potensi dasar anak, meliputi aspek moral, fisik, kognitif, sosial emosional, dan bahasa. Penelitian ini menggunakan pendekatan kualitatif untuk mengamati pelaksanaan bermain kreatif di PAUD KASIH Desa Gala Gala Pangkailan, Kecamatan Porsea. Hasil penelitian menunjukkan bahwa sarana bermain seperti ayunan dan jungkat-jungkit tidak hanya meningkatkan kemampuan motorik kasar anak, tetapi juga merangsang kreativitas, interaksi sosial, dan pemecahan masalah. Suasana belajar yang menyenangkan terbukti dapat meningkatkan motivasi belajar dan membantu anak memahami konsep dasar. Artikel ini merekomendasikan pengembangan sarana bermain, pelatihan bagi pendidik, dan keterlibatan orang tua untuk mendukung pengalaman belajar yang optimal bagi anak. Pembuatan sarana bermain tersebut bertujuan untuk mendorong semangat belajar pada anak PAUD, sehingga mereka bersemangat untuk datang belajar setiap hari dengan penuh semangat karena adanya dorongan dari sarana bermain yang ada di taman PAUD Desa Galagala Pangkailan, Kecamatan Porsea.

BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN MEMANFAATKAN LIMBAH TONGKOL JAGUNG (Penelitian Laboratorium) Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Lumban Gaol, Belinauli Teknika
Jurnal Visi Eksakta Vol. 1 No. 1 (2020): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

The need for housing is more higher along with the times and this is also a factor to increasing for concrete needed for building development. The more concrete that is produced, the more cement is needed for construction.Concrete is a composite material (mixture) of several materials, the main ingredient which consists of a mixture of cement, fine aggregate, coarse aggregate, water and or without other additives with a certain ratio. Utilization of waste carried out in this study is to utilize corn cobs waste which is commonly found in the outskirts of the city of Medan. By utilizing this waste, it is hoped that it can reduce the accumulation of corn agricultural waste and also increase public insight about how to treat corn cobs waste into other forms. In this study, a concrete trial was carried out by adding corn cobs ash waste to concrete which aims to find out whether corn cobs ash can increase the compressive strength of concrete with variations in the percentage of the mixture of 0%, 3%, 6%, and 9% of the cement weight. The compressive strength value of normal concrete (25.45MPa), while with the substitution of corn cob ash 3% (21.96 MPa), 6% (18.56MPa), and 9% (16.45MPa). So it can be concluded that the resulting compressive strength exceeds the planned compressive strength and the optimum substitution value of corn cobs varian is at the 3% variant, namely 21.96 MPa.

HUBUNGAN TANAH DASAR TERHADAP PERKERASAN LENTUR (FLEXIBLE PAVEMENT) JALAN RAYA Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Simanjuntak, Salomo; Sipayung, Triwani
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.061 KB)

The road is one of the important infrastructure in supportmobility of community activities. Based on the type of pavement can be dividedinto 3, namely flexible pavement, rigid pavement, and composite pavements. Construction problemsthe road is the subgrade and its compaction work. In this research leadsto the relationship of subgrade to flexible pavement. On flexible pavement there is a 3-layer structure, namely suface, base andsub-base. The thick structure of the flexible pavement layer is severely hampered by subgrade.In this Final Project, the analysis was carried out on 3 variations of CBR, namely 6%, 10%, and15% and compared to 2 variations of the material in the top foundation layer (LPA)and sub-base layer (LPB) and 2 variations of methods, namely the Bina Marga method andAASHTO. From the evaluation results with CBR variations, material variations and variationsmethod, obtained the results of the thickness of the pavement with CBR variations that are getting biggerCBR value, the smaller the thickness of the pavement layer, if seen from the variationthe material the lower the material quality, the thicker the pavement layer, and if it is seen from the variation of the method which is the most accurate and suitable to be appliedIndonesia is the DGH method. Then it can be denied that the subgrade andmaterial greatly affects the thickness of the flexible pavement layer.

Persepsi Pejalan Kaki Terhadap Trotoar Di Lapangan Merdeka Kota Medan Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Simanjuntak, Nurvita Insani M.; Laoli, Titusman Berkat
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Merdeka Square is one of the icons of Medan City which is continously visited by communities of Medan City or immigrant communities because Medan City is the capital of North Sumatera Province with a high complexity of activities in it. Improvements to the road transportation system facilities, especially sidewalk facilites, are important because the purpose of implementing sidewalks is as a special pedestrian lane with security and safety guarantees against traffic accidents. This study aims to look at people’s perceptions as the main users of sidewalk facilities so that they can encourage people to carry out walking activities as a basic moda of transportation. This research was conducted with a quantitative approach with accidental sampling method, namely primary data is the result of direct interviews in the field to the public using sidewalk facilities at Merdeka Square, Medan City. Based on the result of the analysis conducted on the results of the interview, it was found that the community as users of the sidewalks were not satisfied with the existing sidewalks facilities. So this study aims to provide input in order to improve sidewalk facilities that provide comfort and safety values for pedestrians in order to encourage and increase the number of pedestrians, especially at Merdeka Square, Medan City.

BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN ABU SEKAM PADI Simanjuntak, Johan Oberlyn; Sidabutar, Ros Anita; Pasaribu, Humisar; Saragi, Tiurma Elita; Panjaitan, Resinanta
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.259 KB)

Concete is one of the construction materials used with a need that continues to increase every year based on concete-forming materils, especially cement, which has experienced a fairly large increase. Based on this, many studies have been carried out to reduce the need for cement using silica-containing materials, one of which is husk ash.Rice husk ash is produced from burning rice husk which contains silica. With these properties when mixed into the concrete mixture will improve the characteristics of the concrete. This study aims to determine the compressive strength of conrete achieved form a mixture of rice husk ash in concrete. The specimens made for each addition of the percentage of huck ash were 12 samples, with a cylindrical mold size of 15 cm in diameter and 30 cm in height. Variations of rice husk ash used were 3%, 6%, 9% of amount of cement. The type of test was carried out in the form the compressive strength of concrete and observations were made at the age of 7,14,21 28 days. Form the results of the study it was found that the increase in the compressive strength of conrete from the waste of adding rice husk ash as an additive to cement to creste quality and environmentally friendly concrete.

ANALISIS DAN PERENCANAAN SISTEM DRAINASE JALAN PELITA 1 KECAMATAN MEDAN PERJUANGAN KOTA MEDAN Saragi, Tiurma Elita; Saragi, Yetty Riris; Zai, Eben Oktavianus; Harefa, Masati
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (720.994 KB)

The occurrence of flooding on Jln.Pelita 1, Medan Perjuangan District in Medan City was caused by the inability of the existing drainage channel to accommodate direct runoff and blockage of drainage channels by garbage.The hydrological analysis uses maximum rainfall data for the last 10 years, then calculations are carried out that aim to calculate the planned discharge using the rational method. The area of the Medan Perjuangan sub-district is 0.2475 Km2 with hydraulics analysis carried out to calculate the discharge capacity of the drainage channel using the Continuity formula and the Manning formula, after which the appropriate system and dimensions are planned. With a ketchment area of Medan Perjuangan sub-district 0.2475 km2, the calculation of drainage planning using the Gumbel Method of planned rainfall for a return period of ±10 years, with the largest discharge on the combined section of the primary canal and the Kemiling area. Then it was found that the flood height in the research area was as high as 10-20 cm and because of the existing dimensions it was not able to accommodate the design discharge. Thus, the appropriate channel dimensions are planned using a shaped cross section so that the design discharge (Qr) > channel discharge (Qs).

Beton Bermutu Dan Ramah Lingkungan Dengan Memanfaatkan Limbah Abu Ban Bekas Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Sidabutar, Ros Anita; Pasaribu, Humisar; Simbolon, Rido Parulian
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

The need for housing is increasing day by day. This is a factor in the visit to the need for concrete as a housing construction material. The more concrete that is produced, the more cement is needed for the construction. Concrete is a composite material (mixture) of several materials, the main ingredient of which consists of a mixture of cement, fine aggregate, coarse aggregate and water. Utilization of waste tire ash in the concrete mix is one of the alternative uses so that ic can ultimately increase the efficiency of cement savings which takes a long time to increase in high prices. With reference to this, this study uses used waste as a cement additive with a mixture composition of 0%, 3%, 6% and 9%. The test specimens were made using a cylinder with a diameter of 15 cm and a height of 40 cm with 48 specimens produced. The results of the compressive strength test of normal concrete (25.45 MPa), while the concrete with a mixture of 3% used tire ash (28.15 MPa), 6% used tire ash mixture (23.46 MPa) and 9% used tire ash mixture (18.60 MPa). From this research, it can be said that compressive strength of concrete using 3% ash produces the greatest compressive strength of 28.15 MPa.

Co-Authors Harefa, Masati Laoli, Titusman Berkat Lumban Gaol, Belinauli Teknika Mendrofa, Mikhael Gidion Hamonangan Nababan, Albert Nathanael Panjaitan, Paradius Panjaitan, Resinanta Pasaribu, Humisar Pinayungan, Sindi Claudia Br. Saragi, Yetty Riris Sidabutar, Ros Anita Simanjuntak, Johan Oberlyn Simanjuntak, Nurvita Insani M. Simanjuntak, Salomo Simanullang, Parlindungan Simbolon, Rido Parulian Sinaga, Eka Risma Febiola Sipayung, Triwani Sitohang, Agustina Surta Ria Nurliana Panjaitan Zai, Eben Oktavianus

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