Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

p-Index From 2019 - 2024

1.235

P-Index

This Author published in this journals

All Journal Sprocket : Journal of Mechanical Engineering Jurnal Visi Eksakta

Ros Anita Sidabutar

Universitas HKBP Nommensen

Author-ID : 3321400

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health

Published : 7 Documents Claim Missing Document

Claim Missing Document

Articles

BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN ABU SEKAM PADI Johan Oberlyn Simanjuntak; Ros Anita Sidabutar; Humisar Pasaribu; Tiurma Elita Saragi; Resinanta Panjaitan
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.

BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN MEMANFAATKAN LIMBAH ABU BAN BEKAS Johan Oberlyn Simanjuntak; Tiurma Elita Saragi; Ros Anita Sidabutar; Humisar Pasaribu; Rido Parulian Simbolon
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.

EVALUASI PERKERASAN JALAN KAKU (RIGID PAVEMENT) PADA JALAN SM RAJA MEDAN DENGAN METODE BINA MARGA Ros Anita Sidabutar; Yetty Riris Saragi; Humisar Pasaribu; Maruli Pardede; Torang Hutabarat
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

axle vehicles with the aim of shortening the distance and travel time from one place to another, as well as an infrastruture that is needed to support development. The design of the Sisingamangaraja – Lubuk Pakam road pavement consisting of a cement concrete slab as a foundation layer and a foundation laver above the subgrade. The purpose of this study was to evaluate the thickness of the pavement using the Highways Method. The research method used is the secondary data collection method. The data collected include traffic data, concrete data, soil data, vehicle axle free data, CBR modulus of subgrade. Plaanning the thickness of the road pavement concrete slab using the Highways Method obtained 300 mm. A planner is expected to have “felling engineering” supported by extensice knowledge and experience gained in the field.

SIFAT DAN KARAKTERISTIK CAMPURAN BETON MENGGUNAKAN BATU PECAH DAN BATU GULI DARI SUNGAI BINJAI Johan Oberlyn Simanjuntak; Ros Anita Sidabutar; Humisar Pasaribu; Yetty Riris R Saragi; Sriyanti Sitorus
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Concrete is a construction material consisting of a mixture of cement, aggregate, water and with or without admixture if needed. Coarse aggregate and fine aggregate serve as the main filler of concrete as well as reinforcement, while the cement and water mixtured serves as a binder between materials. To find out and study the behavior of each of these concrete constituents, it is necessary to know the characteristics of the materials made as constituents of the concrete. This study was conducted with the aim of comparing the most optimum type of coarse aggregate used and the comparison of the use of cement for coarse aggregate of crushed stone and coarse aggregate of gully originating from North Sumatera area, namely from the Wampu River in Binjai City as a concrete mixture to see its effect on compressive strength of concrete at the same concrete characteristics namely f’c 25 MPa. The results of the normal concrete mix design are obtained by using coarse aggregate of crushed stone and coarse aggregate of boulder in different amounts of cement. The coarse aggregate of crushed stone requires more cement with the amount of cement 411.1 kg/m3 than the coarse aggregate of gum with the amount of cement 388.9 kg/cm3.

Pengaruh Penambahan Serat Ijuk Terhadap Kuat Tekan Beton Ros Anita Sidabutar; Johan Oberlyn Simanjuntak; Josua Marganda Simangunsong
Jurnal Visi Eksakta Vol. 3 No. 1 (2022): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Concrete is one of the construction materials consisting of a mixture of coarse aggregate and fine aggregate as a filling material, as well as cement and water as a binder. With the addition of fiber as a partial replacement of cement to obtain a cheaper cost, for simple buildings. With partial replacement of cement with fiber in normal concrete, which aims to determine the effect of partial replacement of cement with fiber against the compressive strength of concrete. By comparing the length variation of fibers which are respectively 4 cm, 6 cm, 8 cm and fibers taken 2% of the weight of cement. Where the calculation analysis (mix desing) using SNI 7656-2012 (procedure for making normal concrete mix plan). Mix design is done in order to determine the proportion of the mixture is done with strong concrete quality planned. The test object is a cylinder with a diameter with a diameter of 15 cm and height of 30 cm. From the results obtained the replacemen of some of the cement with fibers. Where the test results of normal concrete slump of 10 cm, fiber concrete measuring 4 cm by 10 cm, fiber conrete measuring 6 cm byy 9.8 cm and fiber concrete measuring 8 cm by 9.7 cm. And the maximum compressive strength test results obtained decreased, the test value of cylindrical concrete without the addition of fiber of 27.08 MPa, where the compressive strength of concrete by using 2% fibers with a length of 4 cm of 26.70 MPa, concrete fiber 6 cm of 25.94 MPa, and for fiber 8 cm of 24.72 MPa. So that the compressive strength of concrete that occurs decreases from normal concrete without the addition of fibers.

Alasan Penggunaan Material Bekas Pada Bangunan partahi lumbangaol; Ros Anita Sidabutar; Salomo Simanjuntak; Andre Damara Sinaga
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 4 No 2 (2023): Edisi Februari 2023
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v4i2.896

This study aims to find out the reasons that encourage the reuse of used materials in buildings. The data collection method was carried out by means of a questionnaire survey and interviews with respondents involved in the use of used materials, especially used wood. Respondents consist of used material traders, used material users, building contractors, foremen and building construction contractors who are used material producers. The research was carried out at used building material sales centers in Medan City, which are usually located on Jalan Pahlawan, Medan Perjuangan District, Jalan BrigJen Katamso, Jalan Gagak Hitam, and Jalan Helvetia Raya. Overall there were 10 respondents who participated. This study concludes that the main reason for using used wood materials is related to the price difference between used materials and new materials. Even though the use of used goods has a positive impact on efforts to preserve the environment, environmental conservation considerations have not become an important consideration in the use of used materials in the city of Medan.

Korelasi Hambatan Konus Dengan California Bearing Ratio Lapangan Pada Tanah Lempung Ros Anita Sidabutar; Yetty Saragi; Jesika Situmorang
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 4 No 2 (2023): Edisi Februari 2023
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v4i2.917

The bearing capacity of subgrade for pavement thickness planning needs is generally determined by carrying out CBR testing. The BCR test in this study will be carried out by field CBR tests (field CBR) using the results of the DCPT examination. Inspection with the DCPT tool produces soil bearing strength data to a depth of 90 cm below the subgrade. The results of this examination are expressed by the Penetrometer Scale Penetrability (SPP) and the Penetration Resistance Scale (SPR). Road construction, which is certain to continue, requires data on identification of soil types and CBR where such data is not always available. In fact, the correlation between CBR and conical tip resistance (qc) already exists. Rahardjo (1996) suggests that for clay, the correlation between qc and CBR is CBR = 0.5 qc. However, the correlation results come from an unknown area, which of course the soil structure and properties are likely to be different and therefore it is also common to find that the time available to design a road pavement layer foundation is very urgent. Meanwhile, to obtain more accurate design results, Qc and CBR data are needed. To provide this connection using Cone Penetration Test (CPT) data at 4 stations and using correlation from the initial soil state data, soil stratigraphy is needed from the segment that will receive the construction. In this study, the CBR value correlation from Rahardjo (1996) and the Novo SPT application was used to obtain the CBR value and then describe the stratigraphy of the soil in that segment. From the results of the CPT to the correlation and Novo SPT, the CBR value to a depth of 2.0 m has not reached 6%, meaning that in this segment, if road construction is to be carried out, it requires soil improvement to obtain a CBR of at least 6%.

Co-Authors Andre Damara Sinaga Humisar Pasaribu Jesika Situmorang Johan Oberlyn Simanjuntak Josua Marganda Simangunsong Lumbangaol, Partahi Maruli Pardede Resinanta Panjaitan Rido Parulian Simbolon Salomo Simanjuntak Sriyanti Sitorus Tiurma Elita Saragi Torang Hutabarat Yetty Riris Saragi Yetty Saragi

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search