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PENAMBAHAN ABU CANGKANG KELAPA SAWIT DENGAN BAHAN TAMBAH SILICA GEL DITINJAU DARI KEKUATAN TARIK BELAH BETON SILINDER Fahrizal Zulkarnain; Muhammad Yusril Chair
Educational Building: Jurnal Pendidikan Teknik Bangunan dan Sipil Vol 8, No 2 DES (2022): EDUCATIONAL BUILDING
Publisher : Jurusan Pendidikan Teknik Bangunan Fakultas Teknik Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ebjptbs.v8i2 DES.41867

Abstract

Saat ini limbah padat berupa cangkang kelapa sawit dimanfaatkan sebagai bahan bakar boiler untuk mesin penggilingan minyak sawit dan sebagai bahan bakar mesin gasifikasi untuk menghasilkan gas bakar yang dapat digunakan untuk berbagai keperluan energi untuk Asphalt Mixing Plant. Hasil pembakaran limbah cangkang kelapa sawit berupa abu kerak boiler, merupakan limbah yang memiliki unsur kimia SiO2, Al2O3, dan CaO, dengan kandungan senyawa tersebut dapat berpengaruh dalam kekuatan beton dan mampu meningkatkan kekuatannya. Pada penelitian ini, mutu campuran beton yang direncanakan pada umur 28 hari adalah sebesar 26 MPa. Pengujian bertujuan untuk mengetahui kadar optimum penggunaan abu cangkang kelapa sawit dan silica gel sebagai bahan tambah semen yang berkaitan dengan kuat tarik belah beton. Pengujian dilakukan terhadap tiga jenis variasi penambahan abu cangkang kelapa sawit dan agregat normal yaitu 15%, 20, dan 25%. Benda uji untuk pengujian kuat tarik belah adalah silinder dengan diameter 150 mm dan tinggi 300 mm. Hasil penelitian menunjukkan penambahan abu cangkang kelapa sawit dan silica gel meningkatkan nilai slump dan nilai kuat tarik belah beton. Hasil analisis menunjukkan kuat tarik belah optimum beton dengan komposisi yang mengandung abu cangkang kelapa sawit dan silica gel 25% yakni 4,88 MPa. Kata Kunci: Abu Cangkang Kelapa Sawit, Kuat Tarik Belah, Silica Gel, Beton ABSTRACT Currently solid waste in the form of palm oil shells is used as boiler fuel for palm oil milling machines and as fuel for gasification machines to produce fuel gas which can be used for various energy purposes for the Asphalt Mixing Plant. The result of burning oil palm shell waste in the form of boiler crust ash, is a waste that has chemical elements of SiO2, Al2O3, and CaO, with the content of these compounds which can affect the strength of concrete and can increase its strength. In this study, the quality of the planned concrete mixture at the age of 28 days is 26 MPa. The test aims to determine the optimum level of use of oil palm shell ash and silica gel as cement additives related to the tensile strength of concrete. Tests were carried out on three types of variations in the addition of oil palm shell ash and normal aggregates, namely 15%, 20, and 25%. The test object for the split tensile strength test is a cylinder with a diameter of 150 mm and a height of 300 mm. The results showed the addition of oil palm shell ash and silica gel increased the slump value and the split tensile strength value of the concrete. The analysis results show the optimum tensile strength of concrete with a composition containing oil palm shell ash and 25% silica gel, namely 4.88 MPa. Keywords: Epoxy Resin, Fiber Concrete, Areca Nut Fiber, Split Tensile Strength
Sosialisasi Pembuatan Nugget Sehat Berbahan Dasar Tempe Di Desa Petangguhan Kecamatan Galang Kabupaten Deli Serdang Rizki Efrida; Zuli Agustina Gultom; Fahrizal Zulkarnain; Elvira Nuriza Harahap
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 3 No. 3 (2022): Oktober
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v3i3.803

Abstract

Tempe is a typical Indonesian food made from fermented soybeans. Tempe is one of the foods that are often consumed by the people of Indonesia. Tempe is a processed protein that is easy to consume because its affordable price. There are many processed tempe menus such as tempe bacem, fried, baked or steamed. along with the time, the creations of processed tempe will be more diverse, one of which is making tempe-based nuggets. Processed nuggets will be increasingly enjoyed by children, because they are tasty and delicious and add protein in the body. This activity done to increase business opportunities in Desa Petangguhan with the majority of farmers, there a great opportunity to improve the economy of Desa Petangguhan. By making nuggets from tempe which taste good, have high nutrition and affordable prices. Training on making tempe nugget was carried out for women from Desa Petangguhan community to increase self-confidence in entrepreneurship. the capital used in making tempe is not too large. This activity is carried out to increase public knowledge about culinary businesses and can increase people's income.
A TEACHER PERFORMANCE MANAGEMENT AT THE ISLAMIC CENTER FOUNDATION MADRASAH TSANAWIAH HIFZIL QUR’AN MEDAN ON COMPETENCY, MOTIVATION AND WORK DISCIPLINE Tolib Harahap; M. Sjahril Effendi Pasaribu; Fahrizal Zulkarnain
Jurnal Ekonomi Vol. 11 No. 03 (2022): Jurnal Ekonomi, 2022 Periode Desember
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Teacher performance is the output or work results obtained by a teacher in carrying out the duties and responsibilities that have been attached to him. Good teacher performance can be measured through teacher professionalism which consists of mastering the four main competencies, namely professional, pedagogical, personal and social competencies. Pedagogic competence is a competency that must be possessed by a teacher in carrying out his duties and obligations. The research objective was to examine the influence of Competence, Motivation and Work Discipline on Teacher Performance in case studies at the Islamic Center Foundation for Madrasah Tsanawiyah Hifzil Qur'an Medan. The research population consisted of 80 people using saturated sampling. Data collection was carried out using the questionnaire distribution method and processed using the SEM – PLS data application. 3.0.
PENGARUH PENAMBAHAN SERAT KULIT PINANG DAN EPOXY RESIN TERHADAP KUAT TARIK BELAH BETON Fahrizal Zulkarnain; Bayu Indra Putra Nasution
Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) SEMNASTEK UISU 2022
Publisher : Fakultas Teknik Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (609.006 KB)

Abstract

Beton serat adalah beton yang cara pembuatannya ditambah serat. Tujuan penambahan serat tersebut adalahuntukmeningkatkankekuatantarikbeton. Penambahan beton pada serat buah pinang keringkan atau di oven dengan suhu 0 C, lalu dipisahkan kulit dan bijinya kemudian serat buah pinang diberai agar tidak bergumpal pada saat terjadi pencampuran lalu serat buah pinang dipotong sepanjang 2 cm, lalu serat buah pinang dicampur sedikit demi sedikit ke campuran beton.Penelitian ini bertujuan mengetahui kuat tarik belah beton optimum setelah dicampur Serat kulit pinang dan Epoxy Resinpada umur beton 7 hari dan 28 hari. Persentase serat kulit pinang yang digunakan dalam penelitian ini adalah sebesar 0%, 1%, 1,25% 1,50% dengan penambahan Epoxy Resin sebesar 0,8%. Penelitian menggunakan benda uji yang berupa silinder dengan ukuran diameter 15 cm dan tinggi 30 cm, dengan sampel 16 buah beton dan 3 (tiga) variasi yang masing-masing variasi berjumlah 2 sampel. Pengujian yang dilakukan pada campuran beton adalah kuat tarik belah beton. Dari hasil penelitian diperoleh, kuat tarik belah rata - rata beton umur 7 hari dengan serat kulit pinang BN (0%)= 2,86 MPa, BSKP (1%) = 4,56 MPa, BSKP (1,25%) = 3,71 MPa, BSKP (1,50%) = 2,43 MPa. Sedangkan kuat tarik belah rata - rata beton umur 28 hari dengan serat kulit pinang BN (0%)= 2,43 MPa, BSKP (1%) = 2,76 MPa, BSKP (1,25%) = 2,86 MPa, BSKP (1,50%) = 2,54 MPa.
Perbandingan Pemakaian Air Kapur Serta Pengaruh Penambahan Sika Fume Terhadap Ketahanan Beton Mutu Tinggi Fahrizal Zulkarnain; Irgi Ilham Sani
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 4 No. 2 (2023): Juni
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v4i2.888

Abstract

: Penelitian ini mencoba menggunakan bahan tambah berupa sika fume yang bertujuan untuk meningkatkan ketahanan dan kuat tekan beton. Selain itu, dalam usaha untuk menghasilkan mutu beton yang lebih baik digunakan air kapur sebagai air campuran adukan beton. Pada penelitian ini menggunakan sika fume sebesar 10% dari berat semen, sedangkan air kapur yang digunakan berasar dari perendaman kapur tohor yang dilarutkan dengan air. Dimensi benda uji silinder 15 x 30 cm. Rancangan campuran menggunakan metode SNI 03-2834-2000. Setiap variasi dibuat 2 benda uji, sehingga jumlah keseluruhannya 16 buah benda uji. Perendaman 28 hari air tawar setelah itu direndam dalam air sulfat dengan lama perendaman 28 hari. Pengujian yang dilakukan yaitu uji kuat tekan beton. Hasil kuat tekan optimum pada perendaman air tawar 28 hari terjadi pada beton dengan campuran air tawar + sika fume 10% yaitu sebesar 26,24 MPa. Setelah direndam air sulfat pada perendaman 28 hari reaksi beton terhadap sulfat sudah berpengaruh terhadap perubahan kuat tekan beton.
Utilization of Cigarette Box Waste to Become a Mangrove Batik Printer in Tanjung Rejo Village, Percut Sei Tuan District Tri Rahayu; Wiwin Nurzanah; Fahrizal Zulkarnain; Sri Asfiati; Yunita Pane
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 3 (2023): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v7i3.14648

Abstract

There are not many uses of mangroves as natural batik dyes, due to the lack of information available about these natural ingredients. The process of using natural colors in batik techniques has been carried out by our ancestors for generations until synthetic colors were found which were considered practical and economical. Batik is a commodity that is currently growing rapidly. Batik has now become a fashion trend in all walks of life, making batik craftsmen more enthusiastic about developing their products. In this process, batik is still stamped manually. This village has batik activities using natural dyes, namely mangrove stems around Tanjung Rejo Village. The proposing team is interested in PKK activities in Tanjung Rejo Village and intends to make them Partners. The partners of the Proposal Team are a group of Batik Mangrove Lestari craftsmen chaired by Mrs. Hamidah under the Tanjung Rejo Village PKK coordinator. This group is able to produce one batik cloth per person per week and one person printed batik 10 cloths/week, which can be sold for 300,000 to 1,000,000 per batik. But right now they are struggling with the rising prices of batik materials, they are confused about how much more batik is for sale, especially batik printers, the increase is up to 100% for a price of around 1,000,000 / pcs with 1 type of motif. While the people of Tanjung Rejo Village themselves still make batik manually using a canting and a printer. Since it was the one they used to use, with the price of the printer going up to 100% they were at a loss as to how to outsmart it. Meanwhile, with 1 batik, 1 motif and it is impossible for them to change the motif continuously while the price reaches 1,200,000/pcs for the printer. For this reason, the proposing team tried to devise creative ideas to use cigarette boxes to become batik printers later, considering that many cigarette box wastes are scattered around Tanjung Rejo Village. Because the creativity that will be made is one that can increase their income in Tanjung Rejo Village besides selling batik, they can also sell batik printers from cigarette box waste later outside of Tanjung Rejo Village. From the survey results, several problems were found in Tanjung Rejo Village: the lack of knowledge of using cigarette boxes to make mangrove batik printers, not knowing how to make good and strong batik printing designs, and not knowing about marketing and management techniques. For this reason, the proposing team tried to solve the partner's problem, namely by providing training on the use of cigarette boxes as mangrove batik printers, training on making batik printing motif designs, and training on marketing and management techniques
The Influence of Changes to Earthquake Regulations SNI 1726:2019 on the Performance of Shop House Structures in North Sumatra Sitompul, Mizanuddin; Erwin, Syiril; Tobing, Palghe; Kusumadi; Zulkarnain, Fahrizal
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.v3i4.69

Abstract

Procedures for planning earthquake resistance for building and non-building structures, SNI 1726:2019 have been approved as a revision of procedures for planning earthquake resistance for building and non-building structures, SNI 1726:2012. With the implementation of SNI 1726:2019, existing buildings should be re-evaluated for their safety against this new regulation. This research examines changes in the performance of shophouse structures in the cities of Sidikalang, Tarutung, Padangsidimpuan, Sei Rampah, Tebing Tinggi, Limapuluh, and Lubuk Pakam. The results show that as a result of the change from SNI 1726:2012 to SNI 1726:2019 there was an increase in the value of the base shear force in the cities of Sidikalang, Sei Rampah, Tebing Tinggi, Limapuluh, and Lubuk Pakam with values respectively 32%, 8%, 11%, 7 %, and 10%. However, in the cities of Tarutung and Padangsidimpuan there was a decrease in the basic shear force value of 3% and 30%. The increase in base shear force is directly proportional to the increase in drift and interstory drift. The interstory drift that occurs is still below the permitted interstory drift.
CONCRETE SHEAR STRENGTH TEST USING BEACH SAND AS FINE AGGREGATE AND SIKACIM CONCRETE ADDITIVE AS ADDED MATERIAL Zulkarnain, Fahrizal; Putri Aulia; Sri Frapanti
Jurnal Teknik Sipil : Rancang Bangun Vol. 10 No. 1 (2024): April 2024
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/rb.v10i1.2797

Abstract

Concrete has become one of the most important building materials for the real estate and civil construction industry. This study aims to create new innovations in the world of constructions namely by utilizing materials available in nature namely beach sand as fine aggregate with the addition of Sikacim Concrete Additive to concrete mix. In addition, this study is intended to determine what if beach sand is used as fine aggregate and Sikacim Concrete Additive as an additive to the shear strength value of concrete. With variations of BTN, BTPP (30%, 50%, 70%), and BTPP (30%, 50%, 70%) + Sikacim Concrete Additive (0,8%) by weight of cement. The samples used were beams with dimensions of (60 cm x 15 cm x 15 cm) with a total of 21 specimens. Shear strength testing can be done if the concrete is 28 days old. The shear strength value obtained of BTN is 1,08 MPa, BTPP 30% is 0,91 MPa, BTPP 50% is 0,78 MPa, BTPP 70% is 0,73 MPa, BTPPS 30% is 1,21 MPa, BTPPS 50% is 1,04 MPa, dan BTPPS 70% is 0,96 MPa. The optimum shear strength value was obtained at the BTPPS 30%.
Analisa ANALISA PEMBUATAN BATA TANPA BAKAR DARI LIMBAH PERTANIAN ABU AMPAS TEBU UNTUK MENGURANGI POLUSI UDARA FRAPANTI, SRI FRAPANTI,ST,MT; Fetra Vanny Riza; Fahrizal Zulkarnain; Arya Rudi Nasution
Jurnal Teknik Sipil : Rancang Bangun Vol. 10 No. 1 (2024): April 2024
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/rb.v10i1.2805

Abstract

Penelitian dan Percobaan dibidang batu bata dilakukan sebagai upaya meningkatkan kualitas batu bata, teknik pelaksanaan untuk menjawab tuntutan yang semakin tinggi terhadap pemakain batu bata serta mengatasi kendala yang terjadi pada pelaksanaan pekerjaan di lapangan seperti berkurangnya material tanah lempung, tanah merah dan kayu untuk pembakaran bata yang hanya berdampak polusi udara sehingga menyebabkan penyakit pernafasan bagi masyarakat..Tujuan penelitian ini adalah untuk pemeriksaan sifat mekanik batu bata dengan menggunakan limbah pertanian campuran ampas tebu sebagai campuran bata tanpa bakar sehingga tidak membuat polusi udara. Komposisi campuran batu bata adalah banding 1:8:2:2 dari berat semua variasi. Cetakan benda uji uyang digunakan berbentuk persegi panjang dengan ukuran panjang 20 cm, lebar 10 cm, dan tinggi 6 cm, sesuai standart SNI, proses pencetakan mengguanakn alat mesin hidrolik Press. Dari Penelitian ini yang di uji adalah uji kuat tekan, penyerapan air, kadar garam, sifat tampak dan berta jenis sebanyak benda uji yang diperlukan. Hasil uji kuat tekan 3,58 Mpa, hasil penyerapan kadar air sebesar 0,432 %, hasil kadar garam 0,001 %, hasil berat jenis bata 1,403 kg/cm. dari hasil penelitian semua sesuai standar SNI hanya untuk uji kuat tekan yang masih dibawah 5 Mpa sebagai standar SNI
Mamfaatkan Limbah Plastik Jenis Styrofoam Untuk Pembuatan Paving Block Harahap, Reza Elvandra; Siregar, Ahmad Marabdi; Zulkarnain, Fahrizal; ., Affandi
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.12390

Abstract

This paving block made from Styrofoam plastic waste is a reuse plastic which has been a big problemin human life from long ago to the present this. These paving blocks are made with a mixture of Styrofoam and sand thas is made in two aggregates, namely varian one with a composition of 50% Styrofoam with a weigth of 600gr anda 50% sand with a weigth600gr and variation two with a composition of 25% Styrofoam with a weigth of 300gr and755 sand with a weigth 900gr. This research is divided in several stages, namely the collection of materials ( Styrofoam and sand), weigth with each aggragate, then cook Styrofoam and mixit with sand, stirring the specimenso that they are well mixed sand and Styrofoam, fed into the mold, extrackted in the mold when its dry. In making this specimen a specimen moled has size 200mm in length, 100mm in widthand 60mm in heigt. 3mm thick irom plate. Then the specimen is cut according to the paving test standards block SNI 03-0691-1996. The specimen is cut using a grinder until it becomes size 60mm x 60mm, then eacg variation was made into 3 specimens where to take the average at the timeof data collection. Specimen variation one produces an average compressive strength of 32MPa, while specimen variation two resulting in an average compressive strength of 25,7MPa.