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eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia
Published by Universitas Tribhuwana Tunggadewi
ISSN : -     EISSN : 2548771X     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Industrial & Manufacturing Engineering
Focus and Scope of this journal are : Chemical Engineering including : bioenergy processing, environmental engineering, natural resource management, Heat and Mass Transfer, Chemical Reaction, Analytical Chemistry, Biochemistry, Designing tools and chemical processes, Chemical industry process, Computing and modeling (simulation) process, Particle and nano technology, membrane technology, esessential oil technology, and phytopharmaca, etc. Civil Engineering including : technology of construction materials, transportation system, environmental layout, concrete and wood structures, steel construction, bridge and dam construction, management of water resources and Hydrology, earthquake engineering, sanitation systems and urban drainage. eUREKA is published twice a year on Juni and December by Engineering Faculty of Universitas Tribhuwana Tunggadewi Malang
Arjuna Subject : -
Articles 160 Documents
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ANALISIS ALTERNATIF PERKUATAN JEMBATAN RANGKA BAJA (STUDI KASUS : JEMBARAN RANGKA BAJA SOEKARNO-HATTA MALANG) Gusman S.W, Lalu; Rasidi, Nawir; Ningrum, Diana
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

Jembatan merupakah sebuah struktur yang sangat penting sebagai penghubung jalan yang terputus akibat rintangan-rintangan. Dengan semakin meningkatnya beban yang diterima jembatan dan umur jembatan semakin sedikit ataupun habis, menyebabkan kekuatan berkurang dan terjadinya lendutan yang maksimal. Diperlukan rehabilitas dengan cara memperkuat konstruksi, salah satu caranya adalah memberikan prategang eksternal yang akan melawan lendutan yang terjadi. Dari hasil analisis menggunakan STAAD Pro terhadap jembatan suhat bentang 60 meter didapatkan besar lendutan terhadap beban mati dan beban hidup sebesar 11,72 cm dengan lendutan maksimum izin 6 cm maka lendutan yang terjadi melebihi lendutan yang diizinkan sehingga perlu dilakukan perkuatan dengan cara prategang eksternal. Dua buah model perkuatan prategang eksternal yang dilakukan yaitu prategang eksternal tanpa batang penyokong dan prategang eksternal dengan batang penyokong. Dengan model pertama didapatkan besar lendutan yang memenuhi syarat aman yaitu sebesar 58,489 mm (kebawah) dengan gaya prategang yang harus diberikan adalah 10.000 kN dengan strand gabungan terdiri dari 7 buah tendon, 1 tendon terisi 7 buah kawat strand berdiameter 15,25. Untuk kondisi lendutan akibat beban mati dan gaya prategang adalah sebesar 6,173 mm (kebawah). Sedangkan untuk model kedua didapatkan besar lendutan yang memenuhi syarat aman yaitu sebesar 54,649 mm (kebawah) dengan gaya prategang yang harus diberikan sebesar 7.000 kN dengan strand gabungan terdiri dari 7 buah tendon, 1 tendon terisi 7 buah kawat strand berdiameter 12,27 mm. Untuk kondisi lendutan akibat beban mati dan gaya pratengan saja didapatkan sebesar 2,334 mm (kebawah). Dari kedua model perkuatan tersebut dapat memberikan keamanan kepada jembatan rangka baja tersebut, namun dari kedua model tersebut model yang paling efisien adalah model kedua yaitu prategang eksternal dengan batang penyokong dikarenakan dengan gaya prategang yang kecil dan diameter yang kecil dapat memberikan lawan lendutan yang lebih aman dari pada model kedua. Kata kunci: Jembatan rangka baja, perkuatan, prategang eksternal, lendutan.
Studi Eksperimen Uji Kuat Tekan, Geser dan Tarik Lentur Pasangan Batu Merah Lokal Produksi Daerah Blitar rustam, rustam; naibaho, armin; Pandulu, Galih Damar
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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On a thesis is conducting research and testing a red stone against strong press , slide and pull in a pair of red stone that came from three local namely kecamatan Wates the sample, Sanan kulon sub-district , and the kecamatan Srengat all located in the Blitar district . The purpose of experiments in this research is to observe strong destroyed the couple local brick with the volume of a mixture of one part portland cement: 3 of the tide of sand, and observing strong lekatan sliding a pair of bricks with a mixture of the volume of mortar that same with strong destroyed namely 1 part portland cement: 3 of the sand on thesis is conducting research and testing a red stone against strong press, slide and pull in a pair of local red stone that came from three regions in the sample is Wates, Sanan kulon subdistrict , and the kecamatan Srengat all located in the Blitar district. The results of testing strong press a pair of red stone of each region production different , the third in production after the test , a red stone from the production of Wates regions have the power to press the average highest namely by fk = 35 , 67 kg per cm2 .The order of strong press next namely those Sanan kulon of fk = 33,52 kg per cm2 Srengat areas later by fk = 32,20 kg per cm2. Sliding strong performance also show different numbers at each region production bricks from other regions Wates = fcs the average 5.44 kg per cm2, Sanan kulon fcs the average = 4,77 kg per cm2 Srengat areas later fcs an average of = 4,06 kg per cm2. Test shows a strong sliding also different in each region production of bricks from the fcs Wates average = 5.44 kg per cm2 , Sanan kulon fcs average = 4,77 kg per cm2 areas later an average of fcs Srengan = 4,06 kg per cm2 . To vigorous pull pliable also shows as distinct from each origin its production that is, strong pull pliable regions of Wates fcs = 2.17 kg per cm2, strong pull pliable Sanan kulon fcs = 2,08 kg per cm2 , strong pull pliable Srengat regions fcs = 8 kg per cm2 Keywords: Brick, strong press, strong sliding, strong pull pliable, blitar
HUBUNGAN ANTARA PENGELOLAAN, PENGENDALIAN SISA MATERIAL DENGAN BIAYA DAN WAKTU PENYELESAIAN PEMBANGUNAN GEDUNG PSIK DI UNIVERSITAS TRIBHUWANA TUNGGADEWI MALANG ZULKIBLI, ZULKIBLI; Rasidi, Nawir; Arifianto, Andi Kristafi
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

The construction project is closely related to construction materials. In the implementation of construction projects will certainly lead to the rest of the material. Waste materials sizeable appearing which one of them due to the use of materials that are less effective and efficient, so it can certainly be swelling, especially in the finance sector. Not only that, when waste materials has not be managed properly then it will have an impact on sustainability and an environmental damage around. The purpose of this research is to minimize the cost and time by way of the management and controlling of waste material, especially in the iron material of concrete, cement, sand, brick, gravel, ceramic. Data were obtained from: (1) direct observation in the field around the development projects in the form of direct counting and documentation of waste material on the ground; (2) The survey questionnaire respondents are contracting staff, among others are, field supervisors, foremen, consultants, supervisors, and workers. The results showed that: The percentage of the remaining cost of the largest material studied during the project implementation comes from Concrete steel material valued at IDR 5.4838 million, the total responses to questionnaires each type of waste material under study is the largest sand material waste by 19.68%, the percentage of remaining charge the material can not be used towards the cost of materials required field amounted to 4.9%, the percentage of the total cost of waste material to the total cost of the project amounted to 1.87% and the total results of the questionnaire in the field based on the source and cause of the largest waste material is (X3) handling factor amounting to 35.75%. Besides efforts to reduce material waste in the ground is a good material management methods. Keywords: Waste material, material management, the category of waste material.
Pra Rancang Bangun Asap Cair dari Potongan Kayu dengan Kapasitas 3000 Ton/Tahun Menggunakan Alat Utama Coloumn Zeolit Aktif dan Karbon Aktif Sari, Mila Puspita; Iskandar, Taufik; Anggraini, S.P. Abrina
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 2, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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ABSTRAK Pemanfaatan limbah kayu olahan dapat dimanfaatkan untuk dijadikan asap cair. Asap cair dapat digunakan sebagai antimikroba, antioksidan, anti rayap dan memberikan efek warna. Berdasarkan sifat-sifat ini, perusahaan akan memanfaatkan limbah kayu olahan sebagai asap cair yang akan digunakan sebagai pengawet dan pewarna kayu. Asap cair dalam proses ini diperoleh dengan mengembunkan asap yang dihasilkan melalui cerobong pirolisis. Selain itu, asap cair yang dihasilkan dapat digunakan sebagai bahan pengawet, antioksidan, disinfektan, atau sebagai biopeptisida. Produk produk asap cair dibagi menjadi tiga kelas, yaitu grade 3, grade 2 dan grade 1. Liquid Smoke Grade 3 adalah output asap cair pertama dalam reaktor pirolisis. Asap cair kelas 3 belum layak untuk pengawet makanan atau rasa karena di kelas ini asap cair masih bercampur dengan tar yang merupakan komponen residu pembakaran yang tidak lengkap. Selain tar, asap cair tingkat 3 mengandung senyawa Polycyclic Hydrocarbon (HPA) Aromatik yang terbentuk selama proses pirolisis asap cair. Desain asap cair ini diharapkan menghasilkan 3000 ton / tahun dengan waktu operasional 300 hari selama 18 jam dibagi menjadi 3 shift. Lokasi produksi berada di wilayah Pasuruan. Total Capital Invesment (TCI): Rp16.656.394.370,-, Return Of Invesment (ROIBT): 34,55 %, Return Of Invesment (ROIAT): 31,09%, Pay Out Time (POT): 2,8 tahun, Break Even Point (BEP): 35,01%, Internal Rate Of Return (IRR) : 28,65%. Kata-kata kunci : Pre rancang pabrik, Asap cair, pirolisis ABSTRACT Utilization of waste processed wood can be utilized to be made into liquid smoke. Liquid smoke can be used as an antimicrobial, antioxidant, anti-termite and provide a color effect. Based on these traits, the company will utilize waste of processed wood as liquid smoke which will be used as preservative and wood dye. Liquid smoke in this process is obtained by condensing the fumes produced through the pyrolysis chimney. In addition, the resulting liquid smoke can be used as raw material preservatives, antioxidants, disinfectants, or as a biopepticide. The liquid smoke product product is divided into three grades, namely grade 3, grade 2 and grade 1. Liquid Smoke Grade 3 is the first liquid smoke output in the pyrolysis reactor. Class 3 grade liquid smoke is not yet feasible for food preservatives or flavors because in this class, liquid smoke is still mixed with tar which is an incomplete combustion residue component. In addition to tar, grade 3 liquid smoke contains an Aromatic Polycyclic Hydrocarbon (HPA) compound formed during the pyrolysis process of liquid smoke. This liquid smoke design is expected to produce 3000ton / year with a 300-day operational time for 18 hours divided into 3 shifts. The location of production is in the region of Pasuruan. Total Capital Invesment (TCI): Rp16.656.394.370,-, Return Of Invesment (ROIBT): 34,55 %, Return Of Invesment (ROIAT): 31,09%, Pay Out Time (POT): 2,8 tahun, Break Even Point (BEP): 35,01%, Internal Rate Of Return (IRR) : 28,65%. Keywords : pre design factory, liquid smoke, pyrolisis
ANALISA PERBANDINGAN KOEFISIEN UPAH KERJA DAN BAHAN DENGAN METODE ANALISA STANDAR NASIONAL INDONESIA PADA PEKERJAAN BETON STRUKTUR STUDI KASUS PROYEK PEMBANGUNAN MALL DINOYO CITY MALANG DEUS, CAETANO MADEIRA DE; Yurnalisdel, Yurnalisdel
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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The purpose of Project Management is a management function to manage or oversee the implementation of development in such a way as to obtain optimum results in accordance with the requirements ( spesification ) for the purpose of achieving this goal , it needs to be noted also about building quality ,cost and time of execution used in order to achieve this result is always attempted execution pengwasan quality , cost control and supervision of the execution time . The specific project management better known as coefficients , wages and materials . Dinoyo City Mall is a large - capacity building with 4 floors portal structure . Coefficient which is primarily used as a reference coefficient of ISO 2008 that have been defined , while there are coefficients on the location of the project or projects coefficient is the coefficient obtained from the results of the actual calculations , based on considerations of efficiency and economic costs . It would require a comparative analysis between the Indonesian National Standard Analysis coefficients and coefficients obtained from Project. Analysis of the coefficient of Indonesian National Standard for the wages of workers with value - average coefficient of 0.038 , while the coefficient OH Project analysis for the wages of workers with value - average coefficient of 0.009 OH . It can be concluded that the ratio coefficient eligible and economic efficiency considerations is the coefficient of the Project. Keywords : coefficient , project management , efficiency, economical. ABSTRAK Tujuan Manajemen Proyek adalah mengelola fungsi manajemen atau mengatur pelaksanaan pembangunan sedemikian rupa sehingga diperoleh hasil optimal sesuai dengan persyaratan (spesification) untuk keperluan pencapaian tujuan ini, perlu diperhatikan pula mengenai mutu bangunan, biaya yang digunakan dan waktu pelaksanaan dalam rangka pencapaian hasil ini selalu diusahakan pelaksanaan pengwasan mutu, pengawasan biaya dan pengawasan waktu pelaksanaan. Manajemen proyek yang lebih specifik dikenal dengan koefisien, upah dan bahan. Mall Dinoyo City merupakan suatu gedung yang berkapasitas besar dengan struktur portal 4 lantai. Koefisen yang diguanakan yaitu koefisien SNI 2008 sebagai acuan yang sudah ditetapkan, sedangkan koefisien yang ada pada lokasi proyek atau koefisien proyek adalah koefisien yang diperoleh dari hasil perhitungan yang sebenarnya, berdasarkan pada pertimbangan efisiensi dan ekonomis biaya. Maka diperlukan analisa perbandingan antara koefisien Analisa Standar Nasional Indonesia dan koefisien yang diperoleh dari Proyek. Dari koefisien Analisa Standar Nasional Indonesia untuk upah pekerja dengan nilai rata – rata koefisien 0,038 OH sedangkan koefisien analisa Proyek untuk upah pekerja dengan nilai rata – rata koefisien 0,009 OH. Maka dapat disimpulkan bahwa perbandingan nilai koefisien yang memenuhi syarat pertimbangan efisiensi dan ekonomis adalah nilai koefisien Proyek. Kata kunci : koefisien, manajemen proyek, efisiensi , ekonomis
Analisa Komposisi Kimia Minyak Atsiri Dari Tanaman Sereh Dapur dengan Proses Destilasi Uap Air Wilis, Arum Octiandini; Marsaoly, Rahayu
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Essential oil is one commodity export potential of agro-industry that could become a mainstay for Indonesia to earn foreign exchange. The purpose of this study is (1) to process steam and water distillation of essential oils from lemon grass kitchen, (2) Knowing the chemical composition of essential oils of lemon grass kitchen with a steam distillation process. The process of making essential oil of lemon grass kitchen is by using distillation / distillation with direct steam. In this study, the chopped material to facilitate the release of the compounds contained. Materials and temperature can be maintained up to 100oC for steam evenly penetrates into the tissue, long distillation is relatively short, oil yield larger in guantity and better in quality, and materials that is distilled can’t be charred (Ketaren, 1985). After distillation is complete, we mil obtained essential oil of lemon grass kitchen called citronella oil. Oil from the kitchen lemongrass plant is called citronella oil. Delespaul et al., (2000) explains that citronella oil is a mixture of several volatile compounds and its main element is often used as a vegetable agent because of its ability as a traditional medicine and it’s boxicity to plants and insects. Keywords: essential oils, distillation, kitchen lemongrass, citronella oil
Perencanaan Tebal Lapisan Perkerasan Tambahan (Overlay) Pada Ruas Jalan Tidar Kelurahan Karangbesuki, Kecamatan Sukun, Kabupaten Malang AMARAL MAGNO, BERNARDINA FATIMA; Rasidi, Nawir; Arifianto, Andi Kristafi
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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The road has a lifespan of service life or the planlife. If the age of service ability has been exceeded, it is needed for an additional layer (overlay) to rejuvenate the structure pavement. Overlays are used as road maintenance to improve pavement structure which decreased. The existence of the highway is needed to support the mobility of freight and people who was crossing the road, which is growing requirement for leveled against transportation to Karangbesuki village. Based on the conditions of location studies, the planning of supplement pavement layer thickness (Overlay) on the Road Section of Karangbesuki village is intended to support economic growth with increasing demand of transport means that can be launched transport in the Karangbesuki Village and development capacity and quantity of vehicles which is connecting the Karangbesuki village, limited sources of funding for highway construction and operation of the traffic infrastructure is not optimal are the main issue in the Karangbesuki Village, Malang. Research conducted in the Karangbesuki Village on June 2015. This study can be obtained arrangement pavement thickness consisting of a subbase (Sub Base) thick 20 cm, 15 cm thick of foundation above, the surface layer of pavement layers 3 cm long and additional layer of Asphalt Macadam. To keep against cracks on highway body encouraged to the public, in onder to not throw away the frash in the side of highway, so causing cracks in the road body and hold regular maintenance by the related department and the public. Keywords: Layer Thickness, Supplement Pavement (Overlay), Karangbesuki Village ABSTRAK Jalan memiliki umur layan atau umur rencana. Jika umur layan telah terlampaui, maka perlu adanya suatu lapisan tambahan (overlay) untuk meremajakan struktur perkerasan. Overlay digunakan sebagai pemeliharaan jalan untuk meningkatkan struktur perkerasan sudah menurun. Keberadaan jalan raya sangat di perlukan untuk menunjang mobilitas angkutan barang dan manusia yang melintasi pada jalan tersebut sering meningkatnya kebutuhan sarana transportasi yang dapat melancarkan transportasi di kelurahan karangbesuki. Berdasarkan kondisi yang ada dilokasi studi, Perencanaan Tebal Lapisan Perkerasan Tambahan (Overlay) Pada Ruas Jalan Tidar Kelurahan Karangbesuki, ini dimaksudkan untuk menunjang laju pertumbuhan ekonomi sering dengan meningkatnya kebutuhan sarana transportasi yang dapat melancarkan transportasi di Kelurahan Karangbesuki dan Perkembangan kapasitas maupun kwantitas kendaraan yang menghubungkan Kelurahan Karangbesuki terbatasnya sumber dana untuk pembangunan jalan raya serta belum optimalnya pengoperasian prasarana lalu lintas yang ada, merupakan persoalan yang utama di Kelurahan Karangbesuki, Kabupaten Malang. Penelitian dilaksanakan di Kelurahan Karangbesuki, pada bulan Juni 2015. Metode yang digunakan dalam studi ini adalah Metode Bina Marga dapat di peroleh susunan tebal perkerasan terdiri dari pondasi bawah (Sub Base) tebal 20 cm, pondasi atas tebal 15 cm, lapisan permukaan 3 cm lapisan perkerasan lama dan Aspal Macadam lapisan tambaha 2 cm. Untuk menjaga agar tidak terjadi retak pada tubuh jalan maka dihimbau kepada masyarakat agar tidak menbuan kotoran pada saluran yang ada di sisi kiri kanan jalan akibat banjir sehingga menyebabakan retak pada tubuh jalan dan mengadakan pemeliharaan secara rutin oleh dinas terkait dan juga masyarakat. Kata kunci : Perencanaan Tebal, Lapisan Perkerasan Tambahan (Overlay)
Studi Perencanaan Kolam Olak Tipe Bak Tenggelam Pada Peredam Energi Bendung, Jl. Terusan Kecubung, Kota Malang Kause, Nicodemus Nitanel; Khaerudin, Dian Noorvy; Frida, Kiki
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 2, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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ABSTRACT Energy dampers are part of the weir that serves to dampen the energy of the water flow through the weir. Most of the dam damages in Indonesia are caused by the local scouring that occurs continuously downstream of the weir. The local scour is caused by considerable potential energy due to the differences in water level upstream and downstream of the weir. Local scours occurring downstream of the weirs caused by high water levels from damming, endanger the construction of the weir itself. To prevent deep scouring of long energy dampers, a new energy damper is planned. The main factor of the deep scouring on the downstream of the dam is the energy damper that has not functioned optimally. In this research used damper type energy sink. In the design of energy damper, based on flood water level +108,884 m, elevation of weir of +108,244 m, height of 2.5 m and flow rate 2,4217 m / sec found the condition of super critical flow during flood water and for dimension of energy damper: 8.25 m hydraulic jumping length, 1.86 m wake length, 2.75 m tube fingers and 2.35 m foundation depth. From the stable stability analysis of the dam to the bolsters, shear, the carrying capacity of the soil and the building does not decrease due to the load or soil stress that occurs. Keywords ; dams ; energy dampers ; hydraulic analysis ; stability.
EVALUASI SISTEM DRAINASE TERHADAP GENANGAN DI KECAMATAN WATES KABUPATEN BLITAR Fatima, Marcos Amaral De Jesus; Suhudi, Suhudi
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Wates region is South Blitar area development that have the potential of tourism in Jolosutro Beach. The Jolosutro beach is located in the Village Ringinrejo, Sub District Wates, District Blitar. Physically, the District Wates has an area of 88 km2 and is one of the smallest in the District of South Blitar. While the land area that affects the Wates road drainage in this case weigh on both the channel capacity of a residential area or an area that has not been built (vacant land) with an area of 0.90 km2. To estimate the amount of rainfall used plan log Pearson type III method, Log Pearson Type III method developed by Dr.Ir.Suripin, M.Eng (Suripin 2003), then after its done with a frequency distribution test : Smirnov- Kolmogrov test and chi-square test used to determine the truth of a hypothesis. Log Pearson Type III method was developed to calculate the design rainfall occurs in T years. The data needed for the calculation of the Log Pearson Type III method is the climatological data, topographical map location, area and land use of the catchment area. Keywords : Drainage, Test Smirnov-Kolmogrov, Test Chi-Square Klimatology, catchment area. ABSTRAK Wilayah Wates merupakan wilayah Kabupaten Blitar Selatan yang mempunyai potensi wisata di Pantai Jolosutro. Pantai Jolosutro terletak di Desa Ringinrejo, Kecamatan Wates Kabupaten Blitar. Secara fisik, Kecamatan Wates memeliki luas wilaya 88 km2 dan merupakan salah satu Kecamatan terkecil di Kabupaten Blitar Selatan. Sedangkan luasan lahan yang mempengaruhi saluran drainase jalan Wates dalam hal ini membebani kapasitas saluran baik area pemukiman maupun area yang belum dibangun (lahan kosong) dengan area seluas 0.90 m2. Untuk memperkirakan besarnya curah hujan rencana digunakan metode Log Pearson tipe III , Metode Log Pearson tipe III dikembangkan oleh Dr.Ir.Suripin, M.Eng (Suripin 2003), Kumudian setelah itu dilakukan uji distribusi frekuensi dengan uji Smirnov-Kolmogrov dan uji Chi-Square yang digunakan untuk mengetahui kebenaran suatu hipotesis. Metode Log Pearson tipe III dikembangkan untuk menghitung Curah hujan rancangan yang terjadi pada T tahun. Data-data yang dibutuhkan dalam perhitungan dengan Metode Log Pearson tipe III ini adalah data klimatologi, Peta topografi lokasi, luas dan penggunaan lahan dari catchment area. Kata kunci : Drainase, uji Smirnov-Kolmogrov, uji Chi-Square Klimatologi, catchment area.
PENGUJIAN MUTU AGREGAT HALUS DAN AGREGAT KASAR DARI SUNGAI SLOG-SAGAN GLENO KABUPATEN ERMERA (TIMOR-LESTE) TERHADAP KUAT TEKAN BETON maia, Jaime ximenes soares; Karjanto, Adjib; Pandulu, Galih Damar
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 1, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Aggregate slog-sagan Gleno become an important commodity in Timor-Leste Ermera district and surrounding areas, namely as a building material. aggregates must meet various technical requirements, but as a natural ingredient quality aggregate slog-sagan Gleno Ermera district clearly much influenced by the state of the place and the environment were taken. The study was conducted in laboratory with concrete cubes 15 x 15 cm to determine the compressive strength of concrete and cylindrical with a size of 15 x 30 cm for the compressive strength of concrete compressive strength beton.dimana made 9 specimens and cylinder 9 specimens with Comparative mixture of 1 cement: Gravel 1.65: 2.47 Sand Preliminary test against the aggregate of the mountain naru showed that the water content is 0:39%, specific gravity 2:48 coarse aggregate and fine aggregate specific gravity to 2.67, the absorption of coarse aggregate by 3.23% and fine aggregate is 0.725%,. Los Angelos abrasion test machine at a speed of 30-33 rpm is 55.45%. Compressive strength of concrete at the age of 7 days converted to 28 days amounted to 197.060 Kg / cm2, Rough River Slog-sagan is used as the material quality of the concrete class 1 (Bo and B1), but for concrete grade 2 can still be used even when seen from the terms of abrasion that does not is justified, because it has been surpassed by 40% SNI requirements. Keywords: Concrete Compressive Strength, Aggregate river, slog-sagan ABSTRAK Agregat Sungai Slog-sagan Gleno menjadi komoditas penting di kabupaten Ermera dan sekitarnya, yaitu sebagai bahan bangunan, agregat harus memenuhi berbagai syarat teknis. Namun sebagai bahan alam kualitas agregat Slog-Sagan jelas banyak dipengaruhi oleh keadaan tempat dan lingkungan pengambilannya. Penelitian dilakukan dilaboratorium dengan kubus beton 15 x 15 cm untuk mengetahui kuat tekan beton dan selinder dengan ukuran 15 x 30 cm untuk kuat beton.dimana untuk kuat tekan beton dibuat kubus 9 buah benda uji selinder beton 9 buah benda uji dengan Perbandingan campuran 1 semen : 1,65 Kerikil : 2,47 Pasir. Uji pendahuluan terhadap aggregat dari gunung naru menunjukan bahwa kandungan air adalah 0.39%, berat jenis agregat kasar 2.57 dan berat jenis untuk agregat halus 2.49, penyerapan untuk agregat kasar sebesar 3.000 % dan agregat halus adalah 0,725%,. Abrasi dengan mesin Los Angelos Test pada kecepatan 30-33 rpm adalah 55.45%. Kuat tekan beton pada umur 7 hari dikonversi ke 28 hari sebesar 197,88 Kg/cm2. Kata Kunci : kualiats agregat, kuat tekan beton.

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