Jurnal Rekayasa Sipil dan Desain
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Studi Kuat Tekan Batu Bata Menggunakan Bahan Additive (Abu Sekam Padi, Abu Ampas Tebu dan Fly Ash) Berdasarkan Spesifikasi Standar Nasional Indonesia (SNI)
Get PDFBrick is one of construction materials of building, shopping complex, real estate etc. Brick is madefrom the mixing of soil and water. In this study, the process of brick production will be tired by mixthe soil with additive materials such as rice husk ash, baggase ash and fly ash. It’s to know howbig the advantage of those additive materials and to compare the compressive strength betweenconventional brick and the brick that have mixed with rice husk ash, baggase ash and fly ash toget Indonesian National Standard for the strong and durable brick.Clay was used as the soil sample in this study. The clay is from Yoso Mulyo Village, Metro. Theadditive materials such as, rice husk ash is from Yoso Mulyo Village Metro, baggase ash is fromPT Indo Lampung Perkasa and the fly ash is from PLTU Tarahan.The result of this study show that the production of brick after burned using additive materialssuch as rice husk ash, baggase ash and fly ash, increase the compressive strength value. So, thestrength of the brick is good enough fulfilled the standard of Indonesian National StandardInstitution.Keywords: Brick, additive fly ash and rice husk ash, baggase ash, compressive strengt
ANALISIS PENGARUH PENAMBAHAN ZAT ADDITIVE ISS 2500 TERHADAP KUAT TEKAN BATU BATA DENGAN DAN TANPA PROSES PEMBAKARAN
No full textBrick is a material t h a t made of clay. Bricks were made with or without additional mixturel throughsome processes and stages. I n t his study used the clay with additional mixture 2500 ISS ( Ionic SoilStabilizer ) which has variety levels mixture of 0,9 ml, 1,2 ml , 1,5 ml and 2,1 ml with the intention to improvethe quality of brick. It is necessary to do the research , so this study can be compared with SNI standards.The tested samples in this study are clay that comes from jl . Nunyai , Rajabasa . It sample was curing for 7day and then, the samples will be done with or without burning process.Based on the results of physical testing the samples, USCS classify soil samples as clay with low plasticityand belongs to the ML group . After doing research of compressive strength testing of with and withoutburning process from four levels generating the compressive strength maximum average at a level of 2.1 mlboth of them. With value 21,24 kg / cm 2 for burning process and 4.25 kg / cm 2 for without burning process.Which is both of those treatments are not included into 25 classes based on tables strength of compressedbricks ( SNI 1991 ).Keywords: brick, clay, iss 2500 (ionic soil stabilizer), compressive strength
Pengaruh Pemanfaatan PET pada Laston Lapis Pengikat Terhadap Parameter Marshall
Get PDFUtilization of plastic waste can be used as an ingredient added to the binder layer of asphaltconcrete (AC-BC). The purpose of this study was to determine the characteristics of the Marshallparameters due to the addition of PET (Polyethylene Terephthalate) in the binder layer of asphaltconcrete (AC-BC) using the method of Marshall and refer to the specifications of Highways, 2010.The research was carried out by adding pieces of PET in the asphalt mix using the dry method.Before adding PET to the asphalt mixture, first making a specimen of middle limit gradation andupper limit gradation. The value of Optimum Asphalt Content (KAO) obtained in the two groupsof test object is equal to 6.44%. Furthermore, the addition of PET in the asphalt mix on the KAOvalue. PET levels are added to the mixture which is 2%, 4%, 6%, 8%, and 10% of the weight ofthe asphalt. From the results of the testing and analysis of Marshall, the addition of PET onasphalt concrete binder layer can increase the value of stability. The most of stability value is onthe addition of 2% PET. Value stability due to the addition of PET in the asphalt mix increasedcompared to asphalt mixture without PET. Levels of PET good addition to the asphalt mixture thatis 2% because in addition to high stability values, parameters such as VIM Marshall, VFA, VMA,MQ and Flow also has qualified specification of Highways, 2010.Keywords: AC-BC, PET, stability, Marshall parameter, specification of Highways 201
Study System Drainase di Fakultas Teknik Universitas Lampung
Get PDFPenelitian ini dilakukan untuk mengetahui bagaimana sistem drainase yang ada apakah sudah optimal dan bagaimana pula kapasitas saluran yang ada apakah masih memadai atau tidak .Pada pelaksnaannya dilakukan analisis hidrologi dan hidrolika. Analisis hidrologi menggunakan data curah hujan maksimum setelah itu dilakukan pengukuran dispersi melalui perhitungan parameter statistik. Dilanjutkan dengan pemilihan jenis distribusi untuk mendapatkan cara mengolah data pengukuran curah hujan rencana dan perhitungan intensitas hujan. Analissis hidrolika berupa kapasitas debit drainase eksisting, setelah itu di buat sistem dan dimensi yang sesuai.Hasil penelitian berdasarkan pengukuran dispersi diperoleh distribusi yang cocok adalah Distribusi Log Pearson III dan diperoleh nilai curah hujan rencana untuk kala ulang 2 tahun sebesar 101,7983739 mm Koefisien pengaliran pada DAS diperoleh sebesar 0,8961 dengan luas DAS 501,32 m2. Nilai debit hujan untuk kala ulang 2 tahun dengan metode rasional diperoleh nilai 2,1172 m3/detik Nilai Qhujan adalah 2,1172 m3/detik sedangkan nilai Qteoritis adalah 0,0833 m3/detik. Karena Qhujan lebih besar daripada Qteoritis, dapat disimpulkan bahwa saluran drainase eksisting sudah tidak cukup lagi untuk menampung debit banjir yang ada. Kata kunci : drainase, analisis hidrologi , analisis hidrolika , distribusi log pearson III, koefisien pengaliran, debit
Studi Pengaruh Penambahan Bahan Additive TX-300 Terhadap Kuat Tekan Batu Bata Pasca Pembakaran
Get PDFAlong with the rise of civil construction such as housing or settlements, also increase the demandfor bricks. To be able to meet the needs of these bricks, brick production must be increased. Notonly an increase in production should be done, but the increase in terms of quantity and in termsof quality also needs to be done. One way to do is to add an additional mixture to the compositionof the brickyardIn this study used clay and additional materials TX-300 which has a variety of levels of 0.6 ml, 0.9ml, 1.2 ml and 1.5 ml with the purpose to improving the quality of the bricks, as well as comparingstrong press bricks by modifying the combustion time. Soil samples tested in this study is claywhich derived from Nyunyai street, Rajabasa, Bandar Lampung. Variations of burning time is usedfor one day, two days and three days.After doing research, from the fourth level, the compressive strength maximum average post-combustion bricks are at a level of 1.5 ml with a burning for two days. The compressive strengthvalue of 46.01 kg / cm2. This is due to the greater levels of TX-300, the greater the compressivestrength value, besides the most optimum burning time is for 2 days, this was due to theevaporation of water contained in the most optimum bricks are burning for two days.Keywords: Bricks, Clay, TX-300, Compressive Strengh
Variasi Temperatur Pencampuran Terhadap Parameter Marshall pada Campuran Lapis Aspal Beton
Get PDFThis study was conducted to determine the effect of temperature variations on the mixing processof the asphalt concrete AC-WC (Asphalt Concrete-Wearing Course) subtle gradations in themiddle limit and lower limit of the Marshall parameters with reference to specifications of BinaMarga, 2010.From the results of experiments conducted that the optimum asphalt content is used to middle limitusing a asphalt content of 5,7% and 6,8% for the lower limit after that mixing was done usingtemperature variation of 120 o C, 130 o C, 140 o C, 150 o C, and 160 o C.To a mixture of Laston AC-WC subtle gradations middle limit grading 5,7% asphalt contentmixing temperature using a temperature of 120 o C, 130 o C, 140 o C, 150 o C, 160 o C and still meet allstandards of marshall parameters. Ideal mixing temperature variations in the middle limit ofmixing temperature 150 o C-160 o C. While the lower limit to the level of 6,8% asphalt contentmixing temperatures between 120 o C-160 o C did not meet the specifications, because the MQ valuebelow the minimum value of 250 kg / mm.Keywords: Mixing temperature, 2010 Specification, Marshall, Asphalt Concrete-Wearing Course(AC-WC) Subtle Gradation
Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Menggunakan Campuran Tanah dan Semen dengan Alat Pemadat Modifikasi
Get PDFPaving Block is the product of a cement building materials that are used as an alternative groundcover of surface hardening. In general, paving block itself is usually made from a mixture ofcoarse aggregate (gravel) and fine aggregate (sand) with a mixture of cement and water areformed according to demand. So in this study, will provide another alternative to using a mixtureof soil and cement as well as soaking to know the effect of compressive strength.Soil samples were taken from Kota Baru, South Lampung. The mixture used is 20% cement and80% is soil, with a variation of immersion 7, 14, 21, and 28 days. Soaking were conducted withand without the combustion process to be seen compressive strength and water absorption.The result is that the compressive strength without burning has increased up to -28 immersion dayby 38.8%, while the compressive strength is experiencing burning decreased to 28 days amountedto 20.63%.Despite an increase in the sample without fuel, and a decrease in samples that undergocombustion, which produced the same compressive strength together to meet quality specificationD on SNI 03-0691-1996. Value of water absorption of pre-combustion meets the specification SNI03-0691-1996 which is 3%-10%. While with combustion does not meet due to exceed 10 %.Keys : paving block, cement, compressive strength,water absorptio
Analisis Data Curah Hujan yang Hilang Dengan Menggunakan Metode Normal Ratio, Inversed Square Distance, dan Cara Rata-Rata Aljabar (Studi Kasus Curah Hujan Beberapa Stasiun Hujan Daerah Bandar Lampung)
Get PDFThis research is done with the purpose to calculate the correlation of measurable rainfall data with rainfall data on the calculation using each method mentioned above which is every method using three rainfall stasions, four rainfall stasions, and five rainfall stasions. It’s also purposed to decide with how many stasions and what method is resulting the best correlation value. As the result of the research using algebraic average method, normal ratio method, and inversed square distance method with daily rainfall data in a year, cumulative monthly rainfall data, and also average monthly rainfall data, it can be concluded that the greater number of stasions resulting the better correlation value. The correlation value with cumulative monthly rainfall data and average monthly rainfall data using some different number of stasions for each method is resulting a not significant differences with the value of percentage is 0,00025% to 0,01182%. Thecalculation uses cumulative monthly rainfall data and average monthly rainfall data showing the better correlation value than calculation using daily rainfall data in a year (0,67230 - 0,72097compared to 0,19305 - 0,25890). Keywords: Rainfall, normal ratio method, inversed square distance method, algebraic average metho
Pengaruh Hambatan Samping Terhadap Kinerja Lalu Lintas Jalan Nasional (Studi Kasus Jalan Proklamator Raya – Pasar Bandarjaya Plaza)
Get PDFThe high value of side friction on the road cause a decrease in performance of the road. Theamount of side friction affects the capasity and speed of ride vehicles. The aim of this research wasto analize the factors that affect the performance degredation of traffic condition on some sidefriction and determine planning solutions to improve the traffic performance.This research are obtained by doing survey of traffic volume (LHR) to see the density of vehicles,then surveys the side friction to see the influence of interference and spot speed surveys bothdistrubed and undistrubed side friction. This research doing in 500 meters in a market segment ofBandarjaya Plaza. Next calculation use the Manual Capasity of Indonesian Road in 1997 for theOutside Urban Road.Based on calculation, then obtained the highest value of the degree of saturation of 1,01 to lineBandarjaya with a volume of vehicles by 1395 pcu/hours, while the capacity of road only 1384pcu/hours. It is indicate the state of the roads is very saturated, so that the necessary repairs theroad performance. The highest level of side friction affecting road performance degredation in theform of vehicles in and out the side road area, so it made procurement solutions median crossingthe road in an attempt to eliminate the vehicle.Keywords : side friction, traffic volume, national roa
Studi Optimalisasi Perparkiran dan Pedestrian di Fakultas Teknik Jurusan Teknik Mesin, Teknik Elektro, Teknik Kimia dan Teknik Geofisika Universitas Lampung
Get PDFThis study aims to determine the parking needs, determine whether the facility is adequate parkingand pedestrian, analyzing pedestrian handling solutions that are safe and comfortable in theFaculty of Engineering Department of Electrical Engineering, Mechanical Engineering, ChemicalEngineering and Engineering Geophysics.Intake of survey data on the number of vehicles and the number of available parking plots. Dataprocessing is done by analyzing the duration of parking, parking capacity, accumulation ofparking and parking index.Based on the survey and analysis of parking needs for this location is the car lands I and II of210% / day, for cars Land III by 19% / day, for motorcycle land I and II at 321% / day, for themotorcycle land III 81% / day. Thus, the index value above 100% of parking, which showed thatthe number of existing parking plots can not accommodate vehicles parked.Keywords: Transport, parking, pedestria