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All Journal International Journal of Advances in Applied Sciences KEAIRAN MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL TEKNOLOGI LINGKUNGAN Jurnal Rekayasa Jurnal Dampak Jurnal Rekayasa Sipil dan Desain JGE (Jurnal Geofisika Eksplorasi) Briliant: Jurnal Riset dan Konseptual Teras Jurnal JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil SIKLUS: Jurnal Teknik Sipil Jurnal Aplikasi Teknik Sipil Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Serambi Engineering Jurnal Kreativitas PKM EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Techno-Fish Borneo Engineering: Jurnal Teknik Sipil Journal of Engineering and Scientific Research (JESR) Journal of Tropical Marine Science JURNAL PENELITIAN PERAWAT PROFESIONAL Jurnal Aisyah : Jurnal Ilmu Kesehatan Publikasi Riset Orientasi Teknik Sipil (Proteksi) Jurnal Pengabdian Kepada Masyarakat Ungu ( Abdi Ke Ungu) International Journal of Aviation Science and Engineering Journal of Innovation and Technology Teknika Sains : Jurnal Ilmu Teknik Jurnal Profesi Insinyur Universitas Lampung COJ (Coastal and Ocean Journal) Indonesian Journal of Nursing and Health Sciences (IJNHS) Jurnal Sylva Lestari JURNAL HUTAN TROPIS JUSTICIA SAINS: Jurnal Ilmu Hukum Jurnal Green Growth dan Manajemen Lingkungan Jurnal Pemberdayaan Ekonomi Journal of Public Health Concerns Journal of Sustainability Science and Technology TEKNOSIA Jurnal Sipil Terapan Jurnal Meteorologi dan Geofisika Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung JPM (Jurnal Pengabdian Masyarakat) Ruwa Jurai Nemui Nyimah
Endro Prasetyo Wahono
Department Of Civil Engineering, Faculty Of Engineering, Universitas Lampung
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Kalibrasi Alat Ukur Sedimen Tersuspensi Berbasis Turbidity Sensor Fakhrizal, Achmad Bagus; Romdania, Yuda; Wahono, Endro Prasetyo; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain Vol. 10 No. 4 (2022): Edisi Desember 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v10i4.2857

Abstract

AbstractTurbidimeter is a standard instrument used to determine the level of turbidity of water. However, its use is felt to be less effective and efficient because it is not carried out in running water. Based on this statement, a practical suspended sediment measuring instrument based on a turbidity sensor is needed. Furthermore, to ensure the ability of a measuring instrument, an activity is needed to determine the validity of the conventional instrument reading value. Therefore, this study aims to calibrate the suspended sediment measuring instrument based on the turbidity sensor. The method used is to compare the measurement results of the design instrument against measuring standards that are traceable to international standards. Turbidity measurements were carried out using two devices which were compared at the same time.The results of the calibration show the output pattern with the appropriate level of linearity. The R-squared value which is the correlation coefficient, with R2=0.9667 indicates a good match between the two instruments. The slope gradient of the curve line is 1.1083 which means that the NTU-18 turbiditymeter is well calibrated. The results of the calculation of the unit conversion of NTU and mg/L have the average square of error or a correlation coefficient of R2=0.8984, meaning that both have a good correlation. In conclusion, the measuring instrument is able to operate properly and without problems. The tool manages to provide relative precision and practical response times, so work efficiency can be increased.  Keywords: Turbidity, Calibration, Convertion AbstrakTurbidimeter merupakan instrumen standar yang digunakan untuk menentukan taraf kekeruhan air. Namun penggunaannya dirasa kurang efektif dan efisien karena tidak dilakukan pada air mengalir. Berdasarkan pernyataan tersebut maka dibutuhkan instrumen ukur sedimen tersuspensi yang praktis berbasis turbidity sensor.Selanjutnya untuk memastikan kemampuan suatu alat ukur, maka diperlukanlah suatu aktifitas untuk menentukan keabsahan konvensional nilai pembacaan instrumen. Oleh karena itu, pada penelitian ini bertujuan untuk mengalibrasi alat ukur sedimen tersuspensi berbasis turbidity sensor. Metode yang digunakan pada penelitian ini yaitu dengan cara membandingkan hasil pengukuran alat rancangan terhadap standar ukur yang mampu telusur ke standar internasional. Pengkuran turbiditas dilakukan menggunakan dua alat yang dibandingkan pada waktu yang bersamaan.Hasil kalibrasi alat menujukkan pola output dengan tingkat linieritas yang sesuai. Nilai R-kuadrat yang merupakan koefisien korelasi, dengan R2=0,9667 menunjukkan kecocokan yang baik antara kedua instrumen. Gradien kemiringan garis kurva bernilai 1,1083 memiliki arti bahwa turbiditimeter NTU-18 sudah terkalibrasi dengan baik. Hasil perhitungan konversi satuan NTU dan mg/L memiliki kuadrat kesalahan rata-rata atau koefisien korelasi sebesar R2=0,8984, artinya keduanya memiliki korelasi yang baik. Kesimpulannya alat ukur mampu beroperasi dengan baik dan tanpa masalah. Alat berhasil memberikan presisi relatif dan waktu respons yang praktis, sehingga efisiensi pekerjaan dapat ditingkatkan. Kata Kunci :Turbidity, Kalibrasi, Konversi
Pengaruh Air Payau Terhadap Kuat Tekan Beton dengan Semen PCC Nugraha, Aditya Wisnu; Niken, Chatarina; Wahono, Endro Prasetyo; Isneini, Mohd.
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 4 (2023): Edisi Desember 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i4.3823

Abstract

AbstractConcrete is a type of construction that is widely used today, one of which is water building infrastructure. Concrete must be resistant to various environmental conditions, such as brackish water. Brackish water is an aggressive environment with chemical contents that can interfere with the compressive strength of concrete. Currently, PCC type cement (Portland Composite Cement) tends to be more widely used than OPC (Ordinary Portland Cement) because the price is cheaper and more environmentally friendly, which has an impact on global warming. The aim of this research is to determine the impact of the aggressive environment of brackish water on the compressive strength of concrete with PCC cement. 18 cylindrical test objects with a diameter of 15 cm and a height of 30 cm were used, which were divided into two types of tests, namely protected concrete and concrete submerged in brackish water. Each test is carried out with three test objects at concrete ages of 28 days, 56 days, and 90 days. The data obtained was then analyzed using the Dixon criteria in accordance with ASTM E 178-02. Compressive strength testing is obtained from the Compression Testing Machine (CTM). The research results show that brackish water has a negative impact on the compressive strength of concrete. At the age of 28 days, the concrete submerged in brackish water reaches its design compressive strength. However, at 56 days and 90 days, the concrete experienced a decrease in compressive strength compared to protected concrete. This is because there is chloride and sulfate content in brackish water, which can damage the structure in the concrete.Keywords : brackish water, compressive strength, concrete, PCC. AbstrakBeton merupakan jenis konstruksi yang banyak digunakan saat ini salah satunya tiang pancang pada dermaga. Beton harus tahan terhadap berbagai kondisi lingkungan seperti air payau. Air payau adalah lingkungan agresif dengan kandungan kimia yang dapat mengganggu kuat tekan beton. Saat ini, semen jenis PCC (Portland Composite Cement) cenderung lebih banyak digunakan dibanding OPC (Ordinary Portland Cement) karena harganya yang lebih murah dan lebih ramah lingkungan karena pemanasan global. Tujuan penelitian ini adalah mengetahui dampak lingkungan agresif air payau terhadap kuat tekan beton dengan semen PCC. Digunakan 18 buah benda uji silinder dengan ukuran diameter 15 cm dan tinggi 30 cm yang terbagi menjadi dua jenis pengujian yaitu beton terlindung dan beton terendam air payau. Dimana setiap pengujian dilakukan dengan 3 buah benda uji pada umur beton 28 hari, 56 hari dan 90 hari. Dari data yang diperoleh kemudian dianalisis dengan kriteria dixon sesuai dengan ASTM E 178-02. Pengujian kuat tekan didapat dari alat Compression Testing Machine (CTM). Hasil penelitian menunjukkan bahwa air payau berdampak negatif terhadap kuat tekan beton. Pada umur 28 hari, beton terendam air payau mencapai kuat tekan rencananya. Namun, pada umur 56 hari dan 90 hari beton mengalami penurunan kuat tekan jika dibanding dengan beton terlindung. Hal ini dikarenakan terdapat kandungan klorida dan sulfat pada air payau yang dapat merusak struktur didalam beton.Kata kunci : air payau, beton, kuat tekan, PCC.
Analisis Perbandingan Peramalan Data Pemrograman Pasang Surut Anfor Dengan Data Pengukuran Pasang Surut Admiralty Pada Stasiun Cilacap anggraini, yeshe; Zakaria, Ahmad; Wahono, Endro Prasetyo; Mariyanto, Mariyanto
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 4 (2023): Edisi Desember 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i4.3857

Abstract

Pasang surut air laut merupakan suatu gerakan naik turunnya permukaan udara secara periodik sebagai akibat dari gaya tarik menarik antara bumi, bulan dan matahari. Analisa pasang surut sangat diperlukan dalam penentuan posisi mean level maupun prediksi muka air laut yang dapat dianalisis dengan program admiralty dan program anfor. Pada penelitian ini dilakukan analisis terhadap empat pasang surut selama 15 hari. Pengolahan data analisa program anfor menggunakan software Totis dan analisa program admiralty menggunakan software microsoft excel. Hasil analisa pasang surut program admiralty dan anfor perolehan selisih terbesar yaitu pada komponen S2 sebesar 9,3503 m dari analisa data observasi Cilacap tahun 2015. Sedangkan untuk selisih fase terbesar yaitu pada komponen K2 dari analisa data Cilacap 2014 sebesar 687,6405O . Uji hasil data prediksi masing-masing analisa dengan data pengamatan menunjukkan program lebih baik. Hal ini dapat dilihat dari nilai RMSE program anfor pada empat data lebih kecil dibandingkan program admiralty. Berdasarkan hasil uji dari kedua metode menghasilkan bahwa keuntungan dari program anfor yaitu lebih cepat dan mudah dalam analisa serta menghasilkan komponen pasut lebih banyak dan hasil prediksi yang lebih akurat. Kata kunci : pasang surut, anfor, laksamana, perbandingan
Analisis Muka Air Banjir terhadap Tutupan Lahan di Sungai Bulok Kabupaten Pringsewu Provinsi Lampung Amanda, Tiara Maelta; Kusumastuti, Dyah Indriana; Zakaria, Ahmad; Herison, Ahmad; Wahono, Endro Prasetyo
Teras Jurnal : Jurnal Teknik Sipil Vol. 13 No. 2 (2023): Volume 13 Nomor 2, September 2023
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v13i2.957

Abstract

Abstrak Sungai Bulok menjadi salah satu Lokasi banjir di WS Seputih Sekampung yang berhasil diidentifikasi. Pada tahun 2017, terjadi banjir besar di Sungai Bulok sehingga mengakibatkan Bendung Gatel (STA 11+00 dari Muara Way Bulok) rusak berat dan juga menyebabkan kerusakan tanggul. Tujuan penelitian ini akan menganalisis Debit Puncak Banjir untuk mengetahui Tinggi Muka Air banjir dengan menggunakan HEC-RAS, serta membahas alternatif untuk mengurangi dampak banjir. Analisis banjir rencana menggunakan metode HSS Nakayashu. Debit puncak banjir Sungai Bulok, untuk kala ulang 20 tahun sebesar 517,02 m3/dt. Profil muka air banjir pada sungai bulok untuk Kala Ulang 2, 5, dan 10 tahun aman dari banjir, sedangkan untuk kala ulang 20 tahun terdapat banjir dari Ruas 1 sampai dengan Ruas 8 sungai Bulok. Untuk alternatif jangka pendek dan menengah diperhitungkan panjang tanggul Untuk mereduksi limpasan yang terjadi dilakukan simulasi hidrolika dengan mengubah tutupan lahan sebanyak 10% sehingga dapat menurunkan Debit Banjir Kala ulang 20 tahun menjadi 313,35 m3/dt atau sebesar 39,39%. Kata kunci: Sungai Bulok, HEC-RAS, tata guna lahan, banjir  Abstract Bulok River is one of the identified flood locations in the Seputih Sekampung Watershed. In 2017, there was a major flood on the Bulok River, causing the Gatel Dam (STA 11+00 from Muara Way Bulok) to be heavily damaged and also causing damage to the embankment. The purpose of this study will be to analyze the Peak Flood Discharge to determine the Flood Water Level using HEC-RAS, as well as discuss alternatives to reduce the impact of flooding. Design flood analysis using the HSS Nakayashu method. The peak flood discharge of the Bulok River, for a 20-year return period, is 517.02 m3/sec. The profile of the flood water level in the bulok river for return periods 2, 5, and 10 years is safe from flooding, while for the 20 year return period there are floods from section 1 to section 8 of the Bulok river. For the short and medium term alternatives, the length of the embankment is calculated. To reduce the runoff that occurs, hydraulic simulations are carried out by changing the land cover by 10% so that it can reduce the 20 year return period flood discharge to 313.35 m3/s or 39.39%. Keywords: Bulok River, HEC-RAS, land use, flood
Analisis Faktor-faktor Yang Mempengaruhi Mutu Beton Ready Mix Suri, Yola Andara Pratami; Noorhidana, Vera Agustriana; Helmi, Masdar; Isneini, Muhammad; Wahono, Endro Prasetyo
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.1049

Abstract

Abstrak Batching Plant sebagai pengolah beton ready mix untuk pembangunan jalan. Dahulu terjadi penurunan mutu beton laboratorium dan lapangan. Akhirnya melatar belakangi penelitian dengan tujuan menganalisis faktor penyebab penurunan mutu seperti; standarisasi SNI material, waktu tempuh beton ke lapangan, perlakuan sampel, komposisi beton. Langkah yang digunakan ialah pengujian material, uji slump dan suhu campuran di laboratorium dan lapangan, mencatat waktu perjalanan dan tuang beton, pembuatan sampel lapangan dan laboratorium, pembuatan sampel khusus, pengujian kuat tekan beton mutu fc10 MPa dan kuat tarik lentur beton mutu Fs4,5 MPa usia 7 dan 28 hari, menggunakan Statistical Quality Control (SQC). Hasil kuat tekan dan kuat tarik lentur sampel laboratorium dan lapangan tidak konstan bahkan berada dibawah nilai (LCL). Penyebabnya pasir dengan kadar lumpur diatas 5%. Mengatasinya dengan penambahan Admixture, admixture Naptha E-121 0,9% menjadi 1,2%, Naptha RD-31 0,2% sampel balok dan Naptha E-121 0,3% menjadi 0,6%, Naptha RD-31 0,2% silinder. Kata kunci: Beton, Statistical Quality Control, Admixture  Abstract Batching Plant as a readymix concrete processor for road construction. In the past, there was a decline in the quality of laboratory and field concrete. Finally, the background for research with the aim of analyzing the factors causing quality decline such as; SNI standardization of materials, concrete travel time to the field, sample treatment, concrete composition. The steps used are material testing, slump testing and mixture temperature in the laboratory and field, recording travel and pouring times for concrete, making field and laboratory samples, making special samples, testing the compressive strength of FC'10 MPa quality concrete and the flexural tensile strength of Fs quality concrete. '4.5 MPa aged 7 and 28 days, using Statistical Quality Control (SQC). The results of the compressive strength and flexural tensile strength of laboratory and field samples are not constant and are even below the (LCL) value. The cause is sand with a mud content above 5%. Overcome this by adding admixture, admixture Naptha E-121 0.9% to 1.2%, Naptha RD-31 0.2% for beam samples and Naptha E-121 0.3% to 0.6%, Naptha RD-31 0 .2% cylinder. Keywords: Concrete, Statistical Quality Control, Admixture
Pendugaan Hasil Sedimen Terhadap Penggunaan Lahan dengan Metode MUSLE di DAS Way Besai Saputro, Rifki Ananda; Kusumastuti, Dyah Indriana; Wahono, Endro Prasetyo; Zakaria, Ahmad; Purwadi, Ofik Taupik
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 2 (2024): Volume 14 Nomor 2, September 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i2.1101

Abstract

Abstrak Salah satu dampak dari erosi adalah penurunan produksi pangan secara global. Penyebab erosi yang terjadi di wilayah sungai adalah perubahan tutupan lahan dan iklim. Dengan melakukan penghijauan, meningkatkan vegetasi dan ekologi, dan perencanaan penggunaan lahan diindikasikan dapat mencegah erosi. Sedimentasi akibat erosi di sungai juga dapat mengurangi kapasitas sungai dalam menampung air. Metode MUSLE (Modified Universal Soil Loss Equation) merupakan pengembangan metode USLE (Universal Soil Loss Equation) dalam pendugaan hasil sedimen. Tujuan dari penelitian adalah memperoleh pendugaan hasil sedimen terhadap penggunaan lahan menggunakan metode MUSLE pada Daerah Aliran Sungai (DAS) Way Besai berbasis sistem informasi geografis. Hasil sedimen periode ulang dengan metode MUSLE untuk Y(2 tahun), Y(5 tahun), Y(10 tahun), Y(25 tahun), Y(50 tahun), Y(100 tahun), dan Y(200 tahun) masing-masing diperoleh sebesar 656.8765 ton, 782.4091 ton, 861.3319 ton, 957.7598 ton, 1027.6898 ton, 1096.4283 ton, dan 1164.6822 ton. Sedimentasi kala ulang menunjukkan tren peningkatan sejalan dengan bertambahnya lama periode yang berulang. Kata kunci: Sedimen, Erosi, MUSLE, DAS Way Besai  Abstract Erosion leads to a global decrease in food production. Land cover and climate changes are the main causes of erosion in river areas. To reduce erosion, we can implement greening projects, improve vegetation, and plan land use strategically. Sedimentation resulting from river erosion can diminish the water-holding capacity of rivers. MUSLE (Modified Universal Soil Loss Equation) method, which enhances USLE (Universal Soil Loss Equation), is used to predict sediment yield. The objective of research is to estimate sediment yield in relation to land use using MUSLE method within Way Besai Watershed, based on a geographic information system (GIS). Sediment yields for recurrence periods, including Y(2 years), Y(5 years), Y(10 years), Y(25 years), Y(50 years), Y(100 years), and Y(200 years), are calculated as 656.8765 tons, 782.4091 tons, 861.3319 tons, 957.7598 tons, 1027.6898 tons, 1096.4283 tons, and 1164.6822 tons, respectively. Sedimentation rates exhibit an upward trajectory in tandem with increasing recurrence periods. Keywords: Sedimentation, Erosion, MUSLE, Way Besai Watershed
Evaluasi Penilaian Kinerja Irigasi dan Angka Kebutuhan Nyata Pengelolaan Irigasi Way Merias Kabupaten Lampung Tengah Rahmadani, Eria Zundi; Wahono, Endro P; Purwadi, Ofik Taufik
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 2 (2024): Volume 14 Nomor 2, September 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i2.1179

Abstract

Abstrak Kegiatan operasi dan pemeliharaan (O&P) irigasi adalah bagian dari manajemen irigasi yang bertujuan untuk keberlangsungan dan kemandirian sistem irigasi. Di wilayah irigasi ini, belum pernah dilakukan pemulihan atau perbaikan secara berkala, sehingga asset irigasi terus mengalami penurunan fungsi. maka diperlukan studi evaluasi kinerja irigasi dan angka kebutuhan nyata pengelolaan irigasi (AKNPI). Daerah Irigasi Way Merias merupakan Daerah Irigasi yang berada di bawah kewenangan Dinas Sumber Daya Air Kabupaten Lampung Tengah, daerah irigasi Way Merias memiliki luas fungsional 79.44 Ha dari luas baku dan potensial yang dimanfaatkan secara fungsional. Daerah Irigasi Way Merias, Kabupaten Lampung Tengah, masih di bawah standar di mana pada Permen PUPR No. 12/PRT/M/2015 menjelaskan untuk katergori Nilai Bobot 80-100 kinerja irigasi tersebut sangat baik, sedangkan pada Daerah Irigasi Way Merias nilai kinerja sistem irigasi 55-69 bahwa pada daerah irigasi tersebut kurang dan perlu perhatian, Total biaya yang dibutuhkan untuk pengelolaan daerah irigasi Way Merias adalah sebesar Rp 317.803.367. Kata kunci: Operasi Dan Pemeliharaan, Angka Kebutuhan Nyata Pengelolaan Irigasi. Kinerja Irigasi,   Abstract Irrigation operation and maintenance (O&M) activities are part of irrigation management which aims to ensure the sustainability and independence of the irrigation system. In this irrigation area, regular restoration or repairs have never been carried out, so irrigation assets continue to decline in function. Therefore, an evaluation study of irrigation performance and real irrigation management needs (AKNPI) is needed. The Way Merias Irrigation Area is an irrigation area under the authority of the Central Lampung Regency Water Resources Service. The Way Merias irrigation area has a functional area of 79.44 Ha. The Way Merias Irrigation Area, Central Lampung Regency, is still below standard. In PUPR Ministerial Decree No. 12/PRT/M/2015 explains that for the Weight Value category 80-100 the irrigation performance is very good, whereas in the Way Merias Irrigation Area the irrigation system performance value is 55-69, which means that in this irrigation area it is lacking and needs attention. from the standard and potential area utilized functionally. The total costs required to manage the Way Merias irrigation area are IDR 317,803,367. Keywords: Operation and Maintenance, Real Needs Figures for Irrigation Management
Pemanfaatan Limbah Fly Ash dan Spent Bleaching Earth sebagai Substitusi Semen pada Beton Mutu Normal Skala Produksi Nababan, Otto Lambok Raya; Iryani, Dewi Agustina; Wahono, Endro Prasetyo; Rinawati, Rinawati
Dampak Vol. 20 No. 2 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.20.2.93-99.2023

Abstract

In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, while the composition of SBE as a substitute for cement is 10%. Keywords: concrete, Fly Ash (FA), Spent bleaching earth (SBE), concrete compressive strength  ABSTRAK In the era of industry and technology in Indonesia, environmental problems due to waste are problems that require wise handling. Fly Ash (FA) waste from PLTU activities and Spent Bleaching Earth (SBE) waste resulting from the palm oil production process are very abundant, thus polluting the environment. Indonesia is currently prioritizing physical infrastructure development, which aims to improve connectivity and encourage economic growth in every sector. The development process that occurs increases the use of concrete. Concrete has a tremendous impact on the environment because most of its composition is cement. The use of cement in the manufacture of concrete results in the emission of large amounts of CO2 gas into the atmosphere, which causes an increase in global warming. The use of concrete can have a lower environmental impact if the use of cement is reduced as much as possible by adding a mixture of FA and SBE wastes. This research will utilize FA and SBE waste in the manufacture of normal concrete production weights and aim to determine the optimal composition of FA and SBE waste that is economically and environmentally feasible. The results of the research by applying FA and SBE substitutions show that FA is better than bleaching earth in the resulting compressive strength. The optimal composition of FA as a substitute for cement to achieve the quality of the planned concrete is 15%, while the composition of SBE as a substitute for cement is 10%. Kata kunci: beton, Fly Ash (FA), Spent bleaching earth (SBE), kuat tekan beton      
Mapping Potential Locations of Reservoir Development Planning Based on Biogeophysical Conditions in Bulok Watershed of Lampung Province Amini, Rosidah; Yuwono, Slamet Budi; Kusumastuti, Dyah Indriana; Riniarti, Melya; Banuwa, Irwan Sukri; Wahono, Endro Prasetyo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 11 No. 4 (2022): Desember 2022
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i4.671-687

Abstract

Floods and droughts are problems that threaten the success of agricultural crops. The reservoir can be used as a water management system that can anticipate these problems. This study aims to examine the potential location of the reservoir development planning based on biogeophysical conditions in the Bulok Watershed of Lampung Province, which uses the overlay method and weighting and scoring techniques developed by Geographic Information System (GIS). The population covers the entire biogeophysical area of the Bulok watershed, with samples of 4 biogeophysical parameters, namely land cover, slope, soil conditions and geological conditions. The results showed that the distribution of land cover types that dominate in the Bulok watershed is mixed dry land agriculture. The most common slopes are flat to wavy slopes. The soil types that dominates are soils with andesite lithology, basalt, diorite, fine-grained tefra, and coarse-grained tefra. The geological formation that dominates is the Hulu Simpang Formation.  Based on the 4 biogeophysical parameters selected in the study, there are 69 locations with great potential for planning the construction of reservoirs in the Bulok watershed. 20 points are spread over the administrative area of Tanggamus Regency, 23 points in Pringsewu Regency, and 26 points in Pesawaran Regency. Of the 87.670 ha of Bulok watershed area, 14.192 ha is very potential location area.   Keywords:   Biogeophysical Conditions, Potential Locations, Reservoir
Peningkatan Pengetahuan Masyarakat Desa Sungai Langka tentang Pola Makan yang Sehat untuk Mengurangi Risiko Hipertensi Wardani, Dyah Wulan Sumekar Rengganis; Pramesona, Bayu Anggileo; Sutarto, Sutarto; Wahono, Endro Prasetyo
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 8, No 5 (2025): Volume 8 No 5 (2025)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v8i5.19782

Abstract

ABSTRAK Hipertensi dipengaruhi oleh beberapa faktor risiko yang tidak dapat diubah dan yang dapat diubah. Faktor risiko yang dapat diubah diantaranya adalah pola makan. Masih kurangnya informasi mengenai pola makan untuk mencegah hipertensi membuat pengetahuan masyarakat tentang perbaikan pola makan masih rendah. Di Kabupaten Pesawaran jumlah penduduk yang berusia >55 tahun, yang merupakan golongan usia yang berisiko tinggi untuk menderita hipertensi, sebanyak 14,86%. Meningkatkan pengetahuan masyarakat Desa Sungai Langka, Kecamatan Gedong Tataan, mengenai pola makan untuk mengurangi risiko hipertensi. Kegiatan mencakup FGD yang bertujuan untuk penyusunan media informasi serta penyuluhan. Kegiatan diikuti oleh dua puluh orang perwakilan yang berasal dari semua dusun di Desa Sungai Langka. Sebelum dan sesudah penyuluhan dilakukan, diberikan pre dan post-test sebagai bentuk evaluasi. Pada pretest 30% peserta tidak paham, 35% peserta kurang paham dan 35% peserta paham mengenai pola makan untuk mencegah hipertensi. Pada post-test, pemahaman meningkat menjadi sebanyak 50% peserta paham dan 50% sangat paham. Kegiatan penyuluhan ini dapat meningkatkan pengetahuan masyarakat Desa Sungai Langka mengenai pola makan dalam mengurangi risiko hipertensi. Kata Kunci: Faktor Risiko, Hipertensi, Penyuluhan, Pola Makan  ABSTRACT Hypertension is influenced by several risk factors, both modifiable and uncontrollable. Modifiable risk factors include diet. Due to the lack of information about diet to prevent hypertension, the public's knowledge about improving diet is still low. In Pesawaran Regency, the number of residents aged >55 years, an age group at high risk for hypertension, is 14.86%. To increase the knowledge of the people of Sungai Langka Village, Gedong Tataan District, about diet to reduce the risk of hypertension. Activities include FGDs aimed at compiling information media and counselling. The activity was attended by twenty representatives from all hamlets in Sungai Langka Village. Before and after the counselling, pre- and post-tests were conducted as a form of evaluation. In pre-test, 30% of the participants did not understand, 35% of the participants did not understand, and 35% of the participants understood about diet to prevent hypertension. In the post-test, the understanding increased to 50% of the participants understood and 50% understood very well. This outreach activity can increase the knowledge of the people of Sungai Langka village about dietary patterns to reduce the risk of hypertension. Keywords: Risk Factors, Hypertension, Counselling, Diet
Co-Authors Abdul Fattah Maghribie Abdullah Aman Damai Achmad Y T Panuju Achmad Yahya Teguh Panuju Adenan Yusuf Aditya, Robby Firza Agus Setiawan Agus Setiawan Agustina Iryani, Dewi Agustinus Purna Irawan Ahmad Herison Ahmad Zakaria Ahmad Zakaria Ahmad Zakaria ahmad zakaria Ahmad Zakaria Alami, Fikri Amanda, Tiara Maelta Amini, Rosidah Andandaningrum, Della Andika, Ivana Aprili Andius D. Putra Andius Dasa Putra Andriansyah, Yeddy Anggraini, Witta Putri anggraini, yeshe Angin, Geleng Perangin Anwar Arianti, Tanti Arief Andriansyah Aristiani, Widya Asep Sukohar Ashruri Ashruri, Ashruri Aviati S., Yuniar Ayu Kurniasih Ayu Kurniasih, Ayu Bagus Sapto Mulyatno Bayu Anggileo Pramesona Budi Setiyawan Christine Wulandari Dermiyati Dewi Agustina Iryani, Dewi Agustina Diah Indriana Kusumastuti Dian Triyanto didit kuswadi kuswadi Diyan Ahmad Saputra Dwi Arnanda Putra, Novindio Dwi Joko Winarno Dwi Joko Winarno Dwi Jokowinarno Dyah Indriana Kusumastuti Dyah Wulan Sumekar Dyah Wulan Sumekar Rengganis Wardani Dyah Wulan Sumekar Rengganis Wardani Eddy Purwanto Eko Adi Saputra Fahri, Muhammad Yusrizal Faishal Muhammad Hanun Fakhrizal, Achmad Bagus Febrian Febrian Febriyani, Febriyani Fikri Alami Fitria Saftarina Fridayanto, Syahlan Naufal Gatot Eko Susilo Geleng Perangin Angin Gunardi Winarno Gusri Akhyar Ibrahim Hardito, Joni Helmi, Masdar Ika Kustiani Ikhfan Kurniyawan Irwan Irwan Irwan Sukri Banuwa Irwan Sukri Banuwa Irwan Sukri Banuwa Isneini, Mohd Isneini, Muhammad Ivana Aprili Andika Jalal, Muhammad Agung Wijdan Jimad, Habibullah Kaskoyo, Hari Kristianto Usman kuncoro, wahyu hadi Kurniawan, Rizqi Kurniyawan, Ikhfan Kusanti, Nency Dwi Kusumastuti, Diah Indriana Kusumastuti, Dyah I. Lana Izzul Azkia, Lana Izzul Lidya Susanti Lusmeilia Afriani M. Dyan Susila Mahardika, Siti Mariyanto Mariyanto Mariyanto Mariyanto Masdar Helmi Maulana Yusuf Maulana Yusuf Melya Riniarti Mohd. Isneini Muhamad Angga Wicaksono Muhammad Amin Muhammad Reza Mulyasari, Rahmi Murdiagatma, Sefrinta Sasma Murhadi Mutia Sasra Olga Pandani Nababan, Otto Lambok Raya Nasution, Miftahul Jannah Nency Dwi Kusanti Niken, Chatarina Noorhidana, Vera Agustriana Nora Anggraini Noviani, Erina Nugraha, Aditya Wisnu Nugraheni, Melly Nur Arifaini NUR EFENDI Nurhasanah Nurhasanah Ofik Taufik Purwadi, Ofik Taufik Opik Taufik Purwadi Ovalia, Nora Wilya Pandani, Mutia Sasra Olga Park Eun Ha Persada, Citra Purwadi , Ofik Taupik Purwadi, Ofik Taupik Purwadi, Opik Taufik Putri, Septi Malidda Eka Rahmadani, Eria Zundi Rian Alfian Riki Chandra Wijaya Riki Chandra Wijaya Rinawati Rinawati Rinawati Rio Aditomo Mahardika Putra Rizki Pratama Rizqi Kurniawan Robby Firza Aditya Rosidah Amini Roslina Samsul Bakri Samsul Bakri Saputra, Eko Adi Saputro, Rifki Ananda Sari, Dwi Meyta Sasongko, Respati Anton Sembiring, Silsila Jana Firdasa Septiana Widi Lestari Setiajaya, Arif Siti Zulaicha, Annisaa Slamet Budi Yuwono Slamet Budi Yuwono Sri Ratna Sulistiyanti Subuh Tugiono Subuh Tugiono, Subuh Suharmanto Suharni Suharni Suharno Sulistiyanti, Sri R Suprayitno, Meli Supriono, Bambang Suri, Yola Andara Pratami Susianti, Susianti Sutarto Sutarto Sutarto Sutarto Syah, Aminudin Syarifuddin Azis Taupik Purwadi, Ofik Teguh Endaryanto Tommy Arisandy Trisna Praja, Tondano Tugiono Tugiyono Vera Agustriana Noorhidana wahyu hadi kuncoro Wardani, Dyah Wulan Warganegara, Ariska Wicaksono, Muhamad Angga Widya Aristiani Widyasmoro, Doni Wijaya, Riki Chandra Wulan Sumekar Rengganis Wardani, Dyah Wulan, Anggraini Janar Yuda Romdania Zainal Abidin