Claim Missing Document
Check
Articles

Found 8 Documents
Search
Journal : Info-Teknik

Studi Perbandingan Beton Ready-Mix Dengan Beton Olah Di Tempat Pada Proyek Pembangunan Ruko Di Kota Banjarbaru Ulfa Fitriati
INFO-TEKNIK Vol 7, No 2 (2006): INFOTEKNIK VOL. 7 NO. 2 2006
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v7i2.1713

Abstract

Penggunaan beton ready-mix pada proyek pembangunan ruko di Kota Banjarbaru mulai banyak bermunculan, namun masih ada yang menggunakan beton olah di tempat.  sehingga perlu diteliti mana yang lebih efektif dan efisien, ditinjau dari waktu, biaya, dan pengawasan mutu antara beton ready-mix dan beton olah di tempat. Pada penelitian ini diambil sampel ruko yang berada di kota Banjarbaru yang menggunakan beton ready-mix dan masih dalam tahap pengerjaan, untuk mengumpulkan data menggunakan angket, wawancara, dan pengamatan di lapangan.  Data-data lain yang diperlukan diperoleh dari instansi pemerintah maupun swasta.  Data-data tersebut digunakan untuk menghitung selisih waktu pengecoran, selisih total biaya adukan beton, dan perbandingan pengawasan mutu.Hasil perhitungan menunjukkan bahwa penggunaan beton ready-mix mempercepat waktu pengecoran namun lebih mahal dibandingkan beton olah di tempat.  Pengawasan mutu pada pembangunan ruko dengan beton olah di tempat tidak menggunakan slump test dan benda uji, sebaliknya untuk beton ready-mix
ANALISIS KUALITAS AIR DI KALIMANTAN SELATAN SEBAGAI BAHAN CAMPURAN BETON Novitasari Novitasari; Ulfa Fitriati; M. Mirza Peradana
INFO-TEKNIK Vol 15, No 1 (2014): INFOTEKNIK VOL. 15 NO. 1 2014
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v15i1.232

Abstract

SNI 03-2847-2002 requirement that the water used in the concrete mix should be clean and free of damaging substances containing oil, acids, alkalis, salts, organic matter, or other substances harmful to concrete or reinforcement. But in fact, often we see the use of water as an ingredient in concrete mixtures that do not follow the requirements of SNI. Work in the field often use water that is in that location without regard to the content that is in them that would negatively affect the compressive strength of the concrete. The purpose of this study was to determine the quality of water contained in the PDAM water, brackish water in the estuary of the Barito, peat water in the area Sambang Lihum, Martapura river water, Polder Alabio water, and water wells in the area Banjarbaru.This test uses several tools, pH Meter to determine levels of acid and alkali in the water, EC Meter to determine levels of salt in the water, and Water Quality Meters to determine water quality. As for the sulfate content in water testing performed Basic Laboratory Faculty of Science, University of Mangkurat, Banjarbaru.On water quality testing, only Brackish Water samples in estuaryof the Barito ineligible pH and salinity, whereas the content of TDS (Total Dissolved Solids) Brackish Water samples in the estuary of the Barito and Water Wells in Banjarbaru ineligible the standard. Keywords: Quality of water, brackish water, the compressive strength of concrete
PERUBAHAN TERJADINYA PUNCAK PASANG SURUT SUNGAI BARITO AKIBAT PEMANASAN GLOBAL Holdani Kurdi; Ulfa Fitriati; M. Ainun Najib; Aulia Isramaulana
INFO-TEKNIK Vol 20, No 1 (2019): INFOTEKNIK VOL. 20 NO. 1 JULI 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v20i1.6960

Abstract

Regional development engineering in coastal areas, tidal land reclamation, delta area reclamation and port planning, tidal knowledge is very important. Tides mainly occur due to the gravitational forces of the moon, sun, and other planets. The influence of different gravitational forces can be predicted precisely because the rotation and revolutionary movements of the earth, moon, sun, and other planets take place with very high order. The tidal period every day is mainly determined by the rotation of the earth with a 24-hour period. Influence of the sun even though its attraction is only half that of the lunar pull, its influence should not be ignored As understood months around the earth with a period of about 29.5 days. When the position of the moon-earth-sun is in line, the tidal forces of the sun and moon strengthen each other. At that time spring tide occurred. Whereas if the sun-earth forms an angle of 90 degrees, then the minimum tides occur (neap tide). The two conditions are about 7 days old, according to the moon's revolution. Because of the influence of the inertia of the mass of water, the spring and neap tide occur between one and three days after these extreme conditions occur. In short-term studies often researchers take extreme conditions, namely during the tidal peak and peak tide (spring tide), because it does not require a long time compared to researching during a longer tide period. The research approach that will be carried out is whether the tide and peak peaks still occur 1-3 days after the full moon and the dead moon, whether there is a change in the height of the tide and ebb during a certain period due to global warming. As a result of global warming, it is also an effect on the water level of the Barito River. There was a decrease in the maximum water level which previously was around 3 m, now only around 2 m, the minimum water level previously around 2 m was now below 1 m. This will affect the hydrotopographic conditions of tidal swamp land, land that was previously type A can change to type B and so on. The highest tides on the Barito River often occur in the dead months, namely the 1st and 29th of the Hijri.
KOLOM BETON PRACETAK SEBAGAI ALTERNATIF KOLOM ULIN PADA PERUMAHAN DI BANJARMASIN Nursiah Chairunnisa; Ulfa Fitriati
INFO-TEKNIK Vol 6, No 2 (2005): INFOTEKNIK VOL. 6 NO. 2 2005
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v6i2.1680

Abstract

In general housing construction inBanjarmasincan be classified in three type : that is wood construction house, concrete construction and wood construction  with brick wall. Special for the a wood construction house have brick wall, generally used column from ulin wood. But from some assessment reason and construction limitation by ulin wood this time, hence in this research try to give scheme alternative with usage precast concrete column at wood construction house have brick wall in BanjarmasinIntention of this research is to study elegibility of ulin column replacement with precast concrete column cover the nature of technical and execution phase making of precast concrete column. Concrete precast column which used in this scheme of designed as according to ulin column dimension to be replaced with by virtue of structural reason, egreement with other element .In research aim to analyze that construction house with competent and valid precast concrete column to be utilized and weared in practice in the place of ulin column. Validasi Elegibility of usage precast concrete column evaluated from some aspect covering assessment about and desain strength of pracetak concrete column at the time of comparison and scheme strength of ulin column with precast concrete column.
Studi Kebutuhan Air Perkotaan Banjarmasin sebagai Ibukota Provinsi Kalimantan Selatan Ulfa Fitriati; Novitasari Novitasari; M. Robiyan Noor M
INFO-TEKNIK 2015: Prosiding Semnas Teknik Sipil 2015
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v0i0.3039

Abstract

Penelitian memproyeksikan penduduk Kota Banjarmasin dan kebutuhan air Kota Banjarmasin dari tahun 2014 hingga 20 tahun ke depan lalu dibandingkan kapasitas intake yang ada memenuhi kebutuhan di tahun mendatang.Dalam memproyeksikan pertumbuhan penduduk Kota Banjarmasin menggunakan 5 macam metode, yaitu metode aritmatika, metode geometrik, metode regresi linier, metode eksponensial dan metode logaritmik. Metode yang paling tepat untuk memproyeksikan pertumbuhan penduduk yaitu yang mempunyai nilai standar deviasi yang paling rendah dan nilai korelasi yang paling mendekati 1. Kebutuhan air di hitung dengan faktor kebutuhan air rata – rata, faktor kebutuhan air hari maksimum, dan kebutuhan air jam puncak. Membandingkan kapasitas intake yang ada dengan proyeksi kebutuhan air.Proyeksi penduduk Kota Banjarmasin menggunakan metode geometrik karena mempunyai nilai standar deviasi paling rendah dari metode yang lain dan nilai korelasi yang mendekati 1. Kapasitas intake yang dimiliki PDAM Bandarmasih cukup untuk mencakupi proyeksi kebutuhan air bersih Kota Banjarmasin hingga tahun 2033, namun kapasitas intake masih belum mampu untuk memenuhi kebutuhan air bersih jam puncak
WATER BALANCE IN SUMBER MULYA VILLAGE, MERAUKE REGENCY Eprosina Jarmida Soumokil; Ulfa Fitriati
INFO-TEKNIK Vol 12, No 1 (2011): INFOTEKNIK VOL. 12 NO. 1 2011
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v12i1.1778

Abstract

Sumber Mulya village is part of Rawa Indah Lowland development area that consists of Kaliki - Sumber Mulya - Jaya Makmur unit. Agricultural area in Sumber Mulya Village is currently processed with relatively small production results due to traditional method of cultivation and water shortage problem.Inflow to Rawa Keramati is larger than the existing irrigation water demand. However, it has only small capacity in utilizing inflow that results in a lot of wasted water during the rainy season. By using Standard Operating Rule model, the most optimum capability of the swamp to fulfil irigation water demand under various canges of cultivation pattern and schedule can be identified.  Optimum result is determined using an approach on Analytical Hierarchy Process (AHP) model.Swamp operation analysis was carried out to the four cultivation schedule alternatives with 100% swamp realase capacity. Based on Analytical Hierarchy Process (AHP) method used for the four cultivation patterns and schedules alternatives reviewed based on adequacy, effectiveness and efficiency factor, the optimum results was obtained at alternative in November. It showed Rawa Keramati water resource capability in supplying Sumber Mulya village water demand with irrigated areas of ±595 Ha, ±594 Ha, and ±593 Ha for the first­crop, second-crop, and third-crop season, respectively.
THE NEEDS OF CLEAN WATER STUDY IN SOUTH BARITO REGENCY Sofia, Elma; Permana, Hendra Bangkit; Fitriati, Ulfa
INFO-TEKNIK Vol 21, No 2 (2020): INFOTEKNIK VOL. 21 NO. 2 DESEMBER 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i2.10360

Abstract

South Barito Regency is one of the regencies in province of Central Kalimantan. South Barito Regency is a regency whose developing quite rapid because in terms of its geographical location, South Barito Regency passed by national road and become a place of transit which also led to an increase in population and economic needs, especially the need for clean water. There are still areas experiencing water shortage problems because of the difficulty of distributing clean water. The purpose of this study was to determine the amount of water needs for 2017, 2021, 2026, 2031, and 2036 to serve the needs of community and also determine the water quality at the intake, and comparing water demand with intake capacity. In this study, the calculation of population projections using statistical methods in which to pay attention to the rate of population growth of the past to estimate the number of people in the future. There are several methods that can be used to analyze the population growth in the future, namely arithmetic, geometric, linear regression, exponential, and logarithmic. For water quality check, field survey is needed to test parameters such as temperature, electrical conductivity, the amount of dissolved solids, pH, turbidity, salinity, and dissolved oxygen measurements. Results of this research is needed clean water discharge Barito Selatan with consecutive results as follows in 2017; 2021; 2026; 2031; In 2036 amounted to 305.14 L / s, 429.55 L / s, 599.58 L / s, 755.02 L / s, 794.94 L / s .With intake capacity which is now only 184.5 L / s, it can be said that the need for clean water unfulfilled. In the aspect of water quality, source of raw water used by Water Supply Company of South Barito has not meet the standards in terms of pH and turbidity, so the use of water is not safe for the people of South Barito Regency.
EVALUASI SISTEM DRAINASE DI RUAS JALAN UNLAM I DAN III BANJARBARU Sofia, Elma; Fitriyani, Julecha; Fitriati, Ulfa; Nashrullah, Eddy; Widiastuti, Endah
INFO-TEKNIK Vol 25, No 2 (2024): INFOTEKNIK VOL. 25 NO. 2 DESEMBER 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v25i2.21501

Abstract

This research intends to determine whether the capacity of existing drainage channels is still sufficient or not. The method of analysis used involved collecting rainfall data over the past 14 years (2010-2023) from the Class I Banjarbaru Climatology Station and obtaining the dimensions of the drainage channels from direct field measurements. From the results of the study, it was found that some of the drainage was unable to withstand the discharge plan, so redesign and new drainage design were needed. The planned channel dimensions for the redesigned drainage have a channel depth of 1 m and a planned width of 0.9 m. The planned channel dimensions for the new drainage have a channel depth of 0.9 m and a planned width of 0.7 m.