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Pengaruh Plastimen-VZ Pada Beton Dengan Agregat Pasir Pantai Sejarah Kabupaten Batu Bara Irwansyah, Muhammad; Z, Fynnisa; Septiriawan, Gilang; Maharani, Dwi; Damanik, Ficha Zuanda
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 9, No 2 (2023): Jurnal Teknik Sipil dan Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v9i2.8101

Abstract

The use of concrete in construction continues to increase, so innovation in making concrete continues to grow. One of the innovations used in this study is to use additives to analyze the effect of concrete compressive strength on the use of historical beach sand and chemical additives (Plastimen-VZ) as concrete mixes using Mix Design SNI 2834-2000. Testing of the compressive strength of concrete was carried out at 3 and 7 days of age with a reference to normal concrete control of 24.90 MPa or equivalent to K-300 and the number of samples consisted of 18 samples with the added chemical Plastiment-VZ (Sika) 0%, 0.40 %, 0.80%. The results of the study using historical beach sand and Plastimen-VZ (Sika) meet the specifications for use as a concrete mix with a normal concrete control reference of 24 MPa with a compressive strength value of 24.76 MPa. The results of the compressive strength of concrete with a mixture of beach sand and Plastimen-VZ (Sika) 0.40% aged 3 days obtained an average of 24.99 MPa. The results of the compressive strength of concrete with a mixture of beach sand and Plastimen-VZ (Sika) of 0.80% aged 7 days obtained an average of 25.03 MPa.
Analisis Kebutuhan Air Bersih PDAM Tirta Kualo di Kecamatan Datuk Z, Fynnisa; Irwansyah, Muhammad; Hasanah, Moraida; Siregar, Zuraidah; P, Sophia Az Zahra; Aprilia, Risma
Menara: Jurnal Teknik Sipil Vol. 19 No. 1 (2024): Menara : Jurnal Teknik Sipil
Publisher : Teknik Sipil, Fakultas Teknik Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jmenara.v19i1.36029

Abstract

Water is one of the most vital sources of livelihood for all living things on earth. However, not all people have the ability to process water. Datuk Bandar District is one of the areas that has a large number of residents and facilities for schools, offices and other public facilities. In this study, we analyze the demand for domestic and non-domestic clean water in Datuk Bandar District for the next 20 years by projecting the need for population growth until 2041 based on data from the Central Statistics Agency. The method used in this study is the method of arithmetic, geometry, and least square. From the results of the analysis, the projected population of Datuk Bandar Subdistrict in 2041 using the geometric method is 81,670 people and the projected clean water needs of 85,105 l/second, while for now the production capacity of PDAM Tirta Kualo for Datuk Bandar Subdistrict is in WTP II service, namely of 90 l/sec. so that until 2041 the need for clean water for Datuk Bandar District is still fulfilled.
Effectiveness of Ozone Plasma Technology in Enhancing the Survival of Gourami (Osphronemus goramy) Fish Eggs Zahar, Intan; Sari, Dian Puspita; Hasanah, Moraida; Z, Fynnisa
Journal of Technomaterial Physics Vol. 7 No. 1 (2025): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v7i1.19860

Abstract

The gourami (Osphronemus goramy) fish is a freshwater fish commonly found in Asia and widely cultivated by fish farmers or local inhabitants. The survival rate of gourami fish from egg to larva and juvenile stages is very low, at approximately 50%. Several factors, such as unstable environmental conditions, poor water quality, and fungal growth on the eggs, cause this. Typically, synthetic medications or natural materials such as betel leaves and others are used to improve gourami fry's survival rate. In this study, the researchers attempted to apply ozone plasma technology dissolved in water to observe the egg hatchability of gourami fish. This study aims to apply technology in fisheries and aquatic sciences. The results of the study show that ozone technology can be applied to observe larval survival, with the highest survival rates found in the 10-minute and 15-minute ozone treatments, both achieving 100% hatchability, with larval survival rates of 86.67% and 96.66%, respectively.
Penjernihan Air Sungai Silau Skala Rumah Tangga Kabupaten Asahan Dengan Metode Elektrokoagulasi Hasanah, Moraida; Z, Fynnisa; Zahar, Intan; Rahmadsyah, Rahmadsyah; Harmayani, Harmayani; Saktisahdan, T Jukdin
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol. 6 No. 3 (2023): Juli 2023
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v6i3.2417

Abstract

challenge that frequently affects daily life. Generally, the community faces water sources that are discolored, oily, and emit unpleasant odors due to their origins as former rice fields or peat soil. Clean water is one of the main needs for humans for survival and is a determining factor in public health and welfare. Making clean water sources in Sidomulyo Village using the electrocoagulation method is one solution that can be offered. The electrocoagulation method involves utilizing electrical energy to coagulate and remove fine particles from water. By conducting simulations or raising awareness among the public about this method, it aims to provide assistance to the community while promoting understanding of how the electrocoagulation process can be used to purify contaminated water sources, addressing issues such as water discoloration, oiliness, and unpleasant odor. Keywords: clean water; polluted water; electrocoagulation method  Abstrak : Masalah air bersih di Desa Sidomulyo terus menjadi isu yang sering muncul dalam kehidupan sehari-hari. Secara umum, air yang digunakan oleh masyarakat di desa tersebut memiliki warna coklat kekuningan, terkontaminasi oleh minyak, dan memiliki aroma yang tidak sedap. Hal ini terjadi karena sumber air yang digunakan berasal dari bekas lahan pertanian sawah atau tanah gambut. Keberadaan air bersih sangat penting bagi kehidupan manusia dan berperan krusial dalam menjaga kesehatan dan kesejahteraan masyarakat. Salah satu solusi yang dapat diterapkan untuk menciptakan sumber air bersih di Desa Sidomulyo adalah dengan menggunakan metode elektrokoagulasi. Metode elektrokoagulasi adalah proses penggumpalan dan pengendapan partikel-partikel halus dalam air dengan menggunakan energi listrik. Diharapkan dengan melakukan simulasi atau penyuluhan kepada masyarakat tentang metode elektrokoagulasi, maka masyarakat dapat terbantu sekaligus memahami tentang aplikasi metode elektrokoagulasi untuk penjernihan sumber air yang tercemar seperti warna air yang kuning kecoklatan, berminyak, dan berbau. Kata kunci : air bersih; air tercemar; metode elektrokoagulasi
Utilizing Bulu Clam Shell and Sikacim Concrete as Partial Cement Replacement in Porous Concrete Production Z, Fynnisa; Muhammad Irwansyah; Moraida Hasanah; Nur Haliza; Sophia Az-Zahra P
Elkawnie Vol. 11 No. 2 (2025)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v11i2.31991

Abstract

Abstract: The novelty of this research lies in the utilization of waste from bulu clam shells, which are abundantly found in Batu Bara Regency, North Sumatra, Indonesia, combined with Sikacim as a partial substitute for cement in the production of pervious concrete. Bulu clam shells are waste materials with a high calcium carbonate (CaO) content. The development of compressive strength and porosity characteristics of pervious concrete is the main objective of this study. Therefore, this research employs bulu clam shell waste and Sikacim as partial replacements for cement in the production of pervious concrete to minimize the environmental impact of waste. The methodology refers to ACI 522R-10 with a curing age of 28 days. The test specimens were cylindrical with a diameter of 15 cm and a height of 30 cm. The mix variations of pervious concrete in comparison to cement:shell:Sikacim were (100:0:0; 95:5:0; 95:0:5; 90:10:0; 90:0:10; 90:5:5)%. SEM analysis indicates that bulu clam shell waste exhibits a characteristic aragonite morphology, marked by needle-like and rough surface textures. XRF analysis shows that bulu clam shell waste has significant potential for various industrial applications due to its high CaO content and the presence of other supporting elements such as Al₂O₃ and SiO₂. The porosity test results of pervious concrete show that the addition of Sikacim tends to increase porosity, particularly at a dosage of 5%, reaching 27.3%. In contrast, the addition of bulu clam shell waste reduces porosity due to its ability to fill micro-pores. The compressive strength test results demonstrate that bulu clam shell waste is highly effective in increasing the compressive strength of pervious concrete, especially at a 10% composition, achieving 8.86 MPa, which represents a 1.7% increase compared to normal concrete. It can be concluded that bulu clam shell waste has strong potential for the development of the construction industry, as it can partially replace cement while also serving as a more environmentally friendly concrete material. Abstrak: Penelitian Kebaruan penelitian adalah memanfaatkan limbah dari cangkang kerang bulu, yang banyak ditemukan di Kabupaten Batu Bara, Sumatera Utara, Indonesia, ditambah dengan sikacim sebagai pengganti sebagian penggunaan semen pada pembuatan beton berpori. Pengembangan sifat kuat tekan dan porositas beton berpori merupakan tujuan penelitian, sehingga penelitian memanfaatkan limbah cangkang kerang bulu dan Sikacim sebagai pengganti sebagian semen dalam produksi beton berpori untuk meminimalkan dampak lingkungan dari limbah. Metode yang digunakan mengacu pada ACI 522R-10, dengan umur pengujian 28 hari. Sampel uji berbentuk silinder, dengan diameter 15 cm dan tinggi 30 cm. Hasil pengujian SEM menunjukkan cangkang kerang bulu memiliki morfologi aragonit yang khas, ditandai dengan tekstur seperti jarum dan kasar. Analisis XRF menunjukkan cangkang kerang memiliki potensi signifikan untuk berbagai aplikasi industri karena kandungan CaO yang tinggi dan adanya unsur pendukung lainnya seperti Al₂O₃ dan SiO₂. Uji porositas beton berpori menunjukkan penambahan Sikacim cenderung meningkatkan porositas, terutama pada dosis 5% sebesar 27,3%. Penambahan cangkang kerang bulu mengurangi porositas karena kemampuannya mengisi pori-pori mikro. Hasil uji kekuatan tekan menunjukkan cangkang kerang bulu sangat efektif dalam meningkatkan kekuatan tekan beton berpori, khususnya pada komposisi 10%, sebesar 8,86 Mpa, meningkat sebesar 1,7% dari nilai beton normal. Hasil penelitian dapat disimpulkan bahwa limbah cangkang kerang bulu memiliki potensi dalam pengembangan industri konstruksi, karena dapat sebagian menggantikan semen sekaligus berfungsi sebagai material beton yang lebih ramah lingkungan.