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Indradi Wijatmiko
Brawijaya University
Civil Engineering, Building, Construction & Architecture

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Life Cycle Assessment (LCA) Analysis Of Concrete Slab Construction For Estimating The Environmental Impact Annisa Nur Rakhmawati; Yatnanta Padma Devia; Indradi Wijatmiko
Rekayasa Sipil Vol 14, No 3 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.03.10

Abstract

Global warming and air pollution become one of the environmental issues facing the world. the construction sector consumes about 40% of total global energy. Many strategies have been adopted to improve the efficiency of building construction to reduce material consumption and carbon emissions. One way to find out the environmental impact and carbon emissions produced is with a Life Cycle Assessment (LCA). This study aims to predict the environmental impact of concrete slab construction in two-story dwellings using the Life Cycle Assessment (LCA) approach of the material used with the help of software, namely Simapro 9.0. The scope of the study is the cradle to the grave. The results of the SimaPro 9.0 concrete plate construction analysis, especially in global warming are 1.02, E+07 kg CO2 eq. The biggest contribution to the manufacture of concrete slabs is the casting process with a value of 1.00, E+07 kg CO2 eq.
Analisis Debit Limpasan Drainase Akibat Pengaruh Perubahan Tata Guna Lahan Alifia Faradina; Indradi Wijatmiko; Yatnanta Padma Devia
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.1

Abstract

The drainage area of the secondary drainage system of the Gunungsari often occurs inundation or flood during rain. This is due to land use change, which was originally a water catchment area transformed into a densely populated area that resulted in disruption of soil absorption so that runoff becomes bigger. The analysis used in this thesis includes hydrological analysis, land use analysis, domestic discharge analysis, cumulative discharge analysis and hydraulics analysis. The hydrological analysis calculated the rainfall at return period of 2, 5, and 10 year with the Pearson Log distribution III, discharge calculation of the plan with the return period by means of the rational method and the method of coefficient value of land use (C) the land is then divided by the area of each sub das. The analysis of domestic waste was calculated from the total population prediction in the future and the water needs of the population. The cumulative discharge was total from domestic discharge and flood discharge of the return period of 2, 5, and 10 years. Hydraulic analysis was calculated to know the existing capacity of channel. The changing of land use were represented by average land use value ( Caverage ), which the value are 0,732; 0,725 and 0,747 for the year 2002; 2007 and 2017 respectively. Based on the results of flood discharge planning analysis, cumulative discharge in return periods of 10 years and hydraulic analysis, the flooding occurred at Darmo Indah channel (segment 5-2) by comparing capacity discharge 2,49 m3 / s and cumulative discharge 4,360 m3/s, Darmo Harapan channel (segment 4-5) by comparing capacity discharge 2,90 m3/s and cumulative discharge 4,496 m3/s. Darmo Satelit channel (segment 7-8) by comparing capacity drainage 4,08 m3/s and cumulative discharge 4,586 m3/s and Simo Gunung channel (segment 18-19) by comparing capacity drainage and cumulative discharge 1,31 m3/s and 2,648m3/s. The capacity of existing secondary channels is not able to accommodate cumulative water discharge over the next 10 years. Therefore, the solution to overcome the flooding is by substituting existing channel box culvert. On the other had, another way to prevent flooding are maintenance and cleaning of solid waste and sedimention regularly.
Pengaruh Variasi Mutu Beton Bertulang Terhadap Cepat Rambat Gelombang Dengan Menggunakan Metode Non Destructive Test Lingga Ariya Dwisyahputra; Indradi Wijatmiko; Christin Remayanti Nainggolan
Rekayasa Sipil Vol 14, No 1 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.01.8

Abstract

Preferably in testing, building structures need not be destroyed. Tests that can be used on the concrete can use non-destructive methods that do not damage the test objects. Examples of testing can use UPV tests that are aimed at knowing the quality of concrete from the pulse velocity. The test objects used in this study are reinforced concrete beams with dimensions 20 x 20 x 100 cm. Test objects are differentiated into 3 quality variations of reinforced concrete with quality of concrete12.5 MPa, 18.75 MPa, and 25 MPa. To conduct analysis of the concrete density used PUNDIT PL-200. Ultrasonic pulse velocity into parameters on this test. From the results of the tests, there are differences in the value of different coefficient of the R2 determination. Acquired coefficient value of determination R2 = 0.9076 in direct method. The coefficient value of determination R2 = 0.8718 in the semi-direct method. Coefficient value of determination R2 = 0.3042 at Indirect Method 2 point, and in indirect method 3 point the coefficient value of determination R2 = 0.7524. From this research also obtained comparisons between the three methods, namely between the direct method and the semi-direct method, direct method and indirect method, also semi-direct method and indirect method.
BEAM CONSTRUCTION IMPACT ANALYSIS BASED ON LIFE CYCLE ASSESSMENT (LCA) USING NETWORK FLOW DIAGRAM Bernardus Martino; Yatnanta Padma Devia; Indradi Wijatmiko
Rekayasa Sipil Vol 15, No 1 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2021.015.01.1

Abstract

Global warming is a problem that happened every year in many various sectors, one of those is construction. Construction projects have a unique character in each construction, therefore it will be difficult if calculating emissions from each construction process. One alternative method that able to calculate carbon dioxide emissions is Life Cycle Assessment. The purpose of this study will discuss the use of the Life Cycle Assessment method on beam products in 216 type house and analyze the CO2 emission load of all beam types. The analysis uses SimaPro software. Results of this research are that from 4 types of beams used in type 216 houses, beam-type 25/50 have the largest percentage of 41.9% and beam-type 15/30 with a percentage of 39.9% of the total CO2 emission of all beam types.
ENVIRONMENTAL IMPACT EVALUATION ON CONSTRUCTION MATERIALS WITH THE INTEGRATION OF BUILDING INFORMATION MODELING (BIM) AND LIFE CYCLE ASSESSMENT (LCA) Riska Ayu Febriyani; Indradi Wijatmiko; Wisnumurti Wisnumurti
Rekayasa Sipil Vol. 15 No. 2 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2021.015.02.1

Abstract

Technological developments, especially in the construction sector, have developed rapidly. The construction industry is one of the activities that consume energy, resources, and affects the environment. Therefore it is important to increase innovation and solutions to achieve sustainability standards. Several efforts were made to maintain environmental sustainability against global problems, namely the selection of building materials through an analysis of the impact of building materials on the environment called a Life Cycle Assessment (LCA). In this study, two types of curtain wall system materials, type (A), reinforced concrete, final coating, and type (B) brick, reinforced concrete, ceramic, and mortar will be compared. The method used in the completion of this research is a full building supply system in one way, namely the collaboration between Autodesk Revit and Tally which will then be analyzed again. The first step is to determine the type of material by calculating the total material requirements to be used or by modeling the building using Autodesk Revit. From the total volume of material that will be analyzed the impact of the building life cycle based on ISO 14040. The final objective of this research is to get the best alternative from the second material above. The results of the analysis supported the type (B) material which has a smaller effect than the type (A) material on the main environment that regulates global.
SELECTION OF FLOOR COVERING MATERIALS USING LIFE CYCLE COST ANALYSIS ON THE X APARTMENT DEVELOPMENT PROJECT SOUTH TANGERANG Muhammad Mahesa Ramadhan; Yatnanta Padma Devia; Indradi Wijatmiko
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2022.016.03.9

Abstract

Pengembangan suatu kawasan dapat dimulai dengan pembangunan infrastruktur, dimana salah satu contoh infrastruktur tersebut adalah apartemen yang memiliki fungsi sebagai sarana tempat tinggal dan pengembangan ekonomi di kawasan sekitar apartemen. Proyek pembangunan Apartemen X Tangerang Selatan merupakan salah satu objek yang diteliti dalam penelitian ini. Penelitian ini bertujuan untuk memilih material alternatif untuk pekerjaan lantai berdasarkan siklus bangunan menggunakan analisis life cycle cost (LCC) dengan nilai proyek yang begitu besar. Metode penelitian yang digunakan adalah analisis diagram pareto untuk memilih pekerjaan yang akan dianalisis. Analisis LCC menggunakan metode analisis present worth dengan fase gate-to-gate. Penelitian ini menunjukkan bahwa analisis LCC pada Proyek Apartemen X Tangerang Selatan didapatkan hasil pada alternatif pekerjaan lantai HT KR1B yaitu alternatif 2 sebesar Rp. 1.437.912.015 di lantai KR1A HT; alternatif yang dipilih adalah alternatif 2 sebesar Rp. 989.177.787 pada pekerjaan lantai HT KR4 alternatif terpilih yaitu alternatif 2 sebesar Rp. 1.510.914.248, dan untuk lantai marmer KR5A alternatif yang dipilih adalah alternatif 2 sebesar Rp. 617.202.771.
AN IMPLEMENTATION OF LEAN CONCEPT WITH 5S TO ELIMINATE MATERIAL WASTE IN PRECAST FACTORY Roland Gasenda Suryaningrat; Indradi Wijatmiko; Yatnanta Padma Devia
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.9

Abstract

Precast industry is currently experiencing an increase in demand from consumers. Due to increasing demand, a wide variety of products, and push production systems, factories suffer from excess waste, disorganized workplaces, and unhealthy working environments, so it needs a method to overcome these problems. In overcoming this problem, research was carried out by implementing a lean concept with the concept of Seiri, Seiton, Seiso, Seiketsu, Shitsuke (5S) on the handling of waste materials that occur in the precast concrete production process. Material waste is obtained from interviews and analysis of the production cost budget assisted by the Pareto 80/20 method to determine materials that are included in the waste category. From the results of the Pareto analysis, it was found that 5 materials were wasted, namely Reinforcement Ø 13, Concrete Sand, Wire, Oil Formwork Console, and PC Strand 12.7. Then the results are re-analyzed with cause analysis based on the results of brainstorming with a quantity surveyor, two material wastages were obtained, namely wire and formwork console oil. The waste will be repaired with the seiri concept in the form of making a warehouse near the work area, so that later it will eliminate material wastage so that it can save oil. 2930-liter console formwork and 5915 kilograms of wire, with a total cost savings of IDR 123,758.060
Co-Authors Alifia Faradina Annisa Nur Rakhmawati Bernardus Martino Christin Remayanti Nainggolan Lingga Ariya Dwisyahputra Muhammad Mahesa Ramadhan Riska Ayu Febriyani Roland Gasenda Suryaningrat Wisnumurti Wisnumurti Yatnanta Padma Devia Yatnanta Padma Devia