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All Journal Jurnal Teknik Sipil Info-Teknik JTT (Jurnal Teknologi Terpadu) Media Ilmiah Teknik Sipil Jurnal Abdimas Mahakam Borneo Engineering: Jurnal Teknik Sipil Abdimas Universal Bandar: Journal of Civil Engineering Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) Jurnal Teknologi Berkelanjutan Jurnal Talenta Sipil Jurnal Konstruksi Jurnal Ilmiah Teknik Sipil Transukma Ekalaya: Jurnal Pengabdian Kepada Masyarakat Indonesia Jurnal arsitektur Display Jurnal Rekayasa Konstruksi Jurnal Penelitian Teknik
Irna Hendriyani
Universitas Balikpapan
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : Info-Teknik

 1 
ANALISIS KUAT TEKAN BETON DENGAN BAHAN TAMBAH REDUCED WATER DAN ACCELERATED ADMIXTURE Rahmat Rahmat; Irna Hendriyani; Moh. Syaiful Anwar
INFO-TEKNIK Vol 17, No 2 (2016): INFOTEKNIK VOL. 17 NO. 2 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i2.2497

Abstract

Concrete consist of: cement mortar, coarse aggregate, fine aggregate, water, and addictive materials. The main ingredient in manufacturing of concrete: rock material that called as aggregates. Aggregate has an important role on the quality of the concrete. Various types and trademarks for admixture of concrete that can be used as addictive of the concrete mix with specific purpose. The study aims to determine the effect of the added material of Reduced Water and Accelerated Admixture (Bestmittel) on compressive strength of concrete.The research was conducted in four variations with compressive strength of 25 MPa. One of each variation consists of nine cylinders with length of 30 cm and diameter of 15 cm. Concrete mix with added material Reduced Water and Accelerated Admixture (Bestmittel) in testing at the age of 7 days, 14 days and 28 days, with a variation of 0.2%, 0.4% and 0.6% with 9 samples one of each them. One is normal concrete cylindrical specimen as comparison.The research show by adding Reduced Water and Accelerated Admixture (Bestmittel) by 0.2%, 0.4% and 0.6% by weight of cement and water will (1) increase the workability and (2) increase of average compressive strength of normal concrete (0,2% for 25.61 Mpa; 0,4% for 27.66 Mpa; 0,4% for 29.50 Mpa; and 0,6% for 31.44 Mpa).
ANALISIS INVESTASI PERUMAHAN BORNEO NIRWANA RESIDENCE BALIKPAPAN Irna Hendriyani; Rahmat Rahmat; Reno Pratiwi
INFO-TEKNIK Vol 18, No 1 (2017): INFOTEKNIK Vol. 18 No. 1 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v18i1.3888

Abstract

Based on increase of added and population growth that occurred in the city of Balikpapan, therefor the needed and demand for residential will increase. This situation is a business opportunity for developers to build housing complex. Before the construction of the necessary studies on the feasibility of investment projects in terms of economic (financial). Investment method used in the study is the Net Present Value (NPV), Internal Rate of Return (IRR) and Payback Period (PP). The purpose of research is to analyze the feasibility of the Borneo Nirwana Residence housing, that  located in the kelurahan of Karang Joang at street of PDAM. Construction planning was conducted for 10 years with a payback period of 3 years accompanied determination MARR of 9%. The data required to analyze the form of the budget plan will be the cost of land, cost of infrastructure, cost of facilities, cost of office operations, as well as the construction costs of residential buildings. From the analysis, with an invesment cost of Rp.12.863.388.400,00 get the NPV for Rp.2.504.756.281,00 or NPV > 0, and the value of IRR at 9,7 % or IRR > MARR, it can be declared investment is feasible. But in terms of paybak period or PP is not feasible because a value of payback period is above of the desire of developers, that is for 8 years or longer than 5 years of time desired.
Co-Authors Adhi Surya Adi Prastya, Celvin Agus Nur Salam Agus Sugianto Agustin, Bintang Fajar Aldi Adrian Sianturi Alifah Ersa Widyaningrum Aminuyati Anang Yahya Andi Marini Indriani, Andi Marini Aprillia, Metta Dana Amari Pratiwi Danuarta, Fachry Devi, Suheria Mulia Devi, Suheriah Mulia Diantoro, Bayu Rahmad Elfrida Ratnawati Erfaliani, Amelia Putri Fachry Abda El Rahman Fatchurrochman, Muhammad Aljabbaaru Gunaedy Utomo Gunaedy Utomo Hamriani Ryka Hasanuddin Damanik Hikmah Maya Sari Intan Putri, Nur Ishaq Iskandar Ixcal, Alex Chairrul Jaya, Liem Ruwady Pratama Jeremmy Makatuuk Johnson, Ricky Kencanawati, Martheana Lusi Rahmaniah M. Rahmad Hidayat Mahargamitha, Rilia Rigina Marini, Andi Marisha Dewi Sartika Maslina Maslina Maulana Alzait Moch. Arifin Moh. Syaiful Anwar Mu'an, M. Choirul Muhammad Ardin Mustakim Mustakim Noorwahyudi, Fathurrahman Nour Qadri Nova Hariyanti Nur Intan Putri Perdana, Muhammad Aris Permata, Iza Putra Pradika, Jermianto Dwi Pratama, Ezy Nizam Pratama, Rizky Eka Putra, Calvin Pratama Putra, Zam Zam Dade Rachman, Tiara Annisa Rahmat Rahmat Rahmat Rahmat Rahmat Rahmat Rahmat Rahmat Rahmat Rajagukguk, Fanji Fauzi Reki Nur Fauzi Rendi Eko Sugiarto Reno Pratiwi Reno Pratiwi Risma Sa’diyah Ryandi Dito Pratama Setiawan, Ikbal Sinta Nurwijaya Siti Nor Aida Subandi, Dwi Puspita Suheriah Mulia Devi Surya, Adhi Tama, Wira Adi Tasyaf, Andi Audila Amanda Wiwoho, Rangga Satrio Yepi Aprilianus Yoga Dwi Putra Yulhim, Ananda