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121	Civil Engineering	ABS-789
OPTIMIZATION OF OPEN STORAGE (OPEN YARD) VEHICLES TO REDUCE OVERBRENGEN FEES IN PT. INDONESIA KENDARAAN TERMINAL (IKT) JAKARTA Kencana Verawati *), Winoto Hadi, Vivian Karim Ladesi, Siti Sahara University of Jakarta, Civil Engineering, Transportation, Jalan Rawamangun Muka, Pulogadung, Jakarta timur, Daerah Khusus Ibukota Jakarta 13220 kencanaverawati[at]unj.ac.id Abstract The port is a watershed area protected by waves equipped with marine terminal facilities such as docks and warehouses. PT . Indonesia Vehicle Terminal (IKT) Jakarta as a subsidiary of PT . PELINDO move the business section delivery and acceptance vehicle for Interna area s ional and domestic . Innovations in the field of port science and logistics have been widely applied in industry . This happens because the development of an increasingly advanced world and rapidly which requires the port and company logistics to innovate to develop ideas that are owned . The achievement to be leading to delivery of both international and domestic vehicles amid stiff competition world so desperately needs innovation in optimizing the storage area (open yard) vehicles in PT. The IKT should be carried out properly and according to procedures, if there is found excess storage capacity of the vehicle which will have an impact on spending overbrengen costs (land leasing costs). This was greatly avoided by PT. IKT. In this study also used a descriptive method, based on the results of data analysis in the form of calculation of the capacity of the field in the open yard or often called the Yard Occupacy Ratio (YOR) . Based on the processed data, it was found that overload occurred or exceeded the capacity of the number of vehicles in the domestic storage area. Keywords: Yard Occupacy Ratio (YOR), Port, Storage, Overbrengen Share Link | Plain Format | Corresponding Author (Kencana Verawati)

122	Civil Engineering	ABS-538
Verification of Modulus of Subgrade Reaction Experimental Based on Plate Deflection Athaya Zhafirah (a*), Andri Krisnandi Somantri (b), Eko Walujodjati (a), Subhan Mulyana (a) (a*) Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut 44151, Indonesia *athaya[at]sttgarut.ac.id (b) Department of Civil Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Bandung 40559, Indonesia Abstract This study aims to verify the modulus of subgrade reaction test results of the plate load test or empirical formula based on the deflection of the finite element analysis results that are closest to the deflection of the concrete plate loading test results in the laboratory. Modulus of subgrade reaction experimentally obtained from the plate load test results. While the modulus of subgrade reaction using an empirical formula, according to FEMA 356, is calculated using an equation that is influenced by the value of the shear modulus, Poisson ratio, and plate dimensions. The method in this study is analysis and experimental. The verification is carried out by finite element analysis by adjusting the dimensions and parameters of the material with an experimental model for loading concrete plate in the laboratory. Verification of the modulus of subgrade reaction carried out by looking at the deflection of the finite element modeling, which is the closest to the deflection of the experimental results of loading concrete plate in the laboratory. The modulus of the verified subgrade reaction is the value obtained based on the empirical formula because it has almost the same deflection compared to the experimental soil modulus value. Keywords: Geotechnical engineering; Modulus of subgrade reaction; Concrete plate deflection; Experimental; Finite element method Share Link | Plain Format | Corresponding Author (Athaya Zhafirah)

123	Civil Engineering	ABS-543
The effect of land-use changes on water availability in the Cidongkol irrigation area Sulwan Permana*; A Zhafirah; G J Johari; Ismi Purnamasari; Ida Farida Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut 44151, Indonesia sulwanpermana[at]sttgarut.ac.id Abstract The city of Tasikmalaya has now changed, especially in the field of infrastructure. The impact of infrastructure development has an effect on uncontrolled land-use change. One of the transportation infrastructure built by the City of Tasikmalaya Government is Mangin Road. Paddy fields that meet the area gradually began to become settlements. Transfer of land functions in the area, resulting in reduced paddy fields. The Cidongkol Irrigation Area currently has a 116 ha rice field area from an initial 192 ha area. The purpose of this study was to determine the fulfillment of the rice field area and to be associated with previous research. The data processing method is analyzing the availability that comes from Cikalang Channel and water needs. In the initial condition, the required debit about 92% was not fulfilled. Whereas with an area of 116 ha of rice fields, around 67% was not met. Cikalang Channel serves 246 ha of paddy fields. With conditions like this, Cikalang Channel is not able to serve the entire area. To meet water needs, farmers use modified cropping patterns. The City Government of Tasikmalaya has managed the excavation area, and part of the land has been replanted to restore its function. Keywords: land-use; cikalang channel; water availability; water balance Share Link | Plain Format | Corresponding Author (Sulwan Permana)

124	Civil Engineering	ABS-544
Cikandang river discharge as a mini-hydropower plant S Permana*; W M F Muin; G J Johari; A Susetyaningsih; Nanang Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut 44151, Indonesia sulwanpermana[at]sttgarut.ac.id Abstract Garut Regency is flanked by three mountains, namely Papandayan, Guntur, Cikuray. Some are coastal areas in the south of the Garut Regency. Cikandang River has the potential to meet the needs of mini-hydropower plants. The utilization of the Cikandang river is used as a mini-hydropower plant with a power of 1 MW to 10 MW. The locations of the Cikandang 1 and Cikandang 2 mini-hydropower plants nearby use the same potential discharge from the Cikandang river. In practice, the use of this river has a difference between PLTM Cikandang 1 of 6 MW and Cikandang 2 of 3 MW. The method is based on a pre-planned design layout. The calculated discharge is the mainstay discharge or the availability discharge calculated based on the FJ Mock method with a probability of 85% with ten years of rain data. Dependable flow on the Cikandang river is 12.88 m3 / sec, and the head is 32.7 m with head losses 0.86 m, and system efficiency is 0.69. The output power of the Cikandang 2 mini-hydropower plant is 2.88 MW. The difference between the Cikandang 1 and 2 mini-hydropower plants lies in the height of the head. Keywords: cikandang river; dependable flow; head; mini-hydropower Share Link | Plain Format | Corresponding Author (Sulwan Permana)

125	Civil Engineering	ABS-1056
Shady Residency: Passive Technologies through Shading Devices for Some Building Styles to Fix Heat Problem Causes by Climate Change in Tropical Area Feriza Nadiar (*), Danayanti Azmi Dewi Nusantara Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Surabaya, Ketintang, Surabaya, Indonesia *ferizanadiar[at]unesa.ac.id Abstract The issue of Green Building arises after environmental issues that lead to global warming are echoed. All kinds of interpretations about green buildings are often associated with the buildings adaptation ability to the environment including the heat problems. This research aims to evaluate shading devices in 3 building styles, namely Minimalist, Modern Tropical, and Mediterranean in how to respond to heat problems due to climate change and investigating shading devices that have the potential to be applied to all building styles by using the simulation method with ECOTECT software. The results mentioned that the area using the shading device in the form of a terrace or balcony with a canopy (horizontal or curve overhangs), either stand-alone or continuously upward like Portico in the Mediterranean style shows good performance in reducing the incoming heat. And that type of shading device is found in 6 of 9 house samples which indicate that this type of shading device can potentially be applied to various styles with modification of shapes according to each style. Keywords: Shading Device, Thermal Building Performance, Building Envelope, Architecture Style, Environmental Issue Share Link | Plain Format | Corresponding Author (Feriza Nadiar)

126	Civil Engineering	ABS-289
Literature Review Related The Optimization Of Building Facades With Green Building Concept With Life Cycle Cost Oriented : Meta-Analysis RR Coryna Yusi Rachmawati, ST (a). Counsellor : Mohammed Ali Berawi, M.Eng.Sc., Ph.D. (b) (a) Civil Engineering Department Faculty of Engineering, University of Indonesia Depok, Indonesia coryna.yusi[at]yahoo.com (b) Centre for Sustainable and Infrastructure Development (CSID) Faculty of Engineering, University of Indonesia Depok, Indonesia maberawi[at]eng.ui.ac.id Abstract Buildings are civil buildings that require the greatest energy consumption. Based on observations of temperature trends in Indonesia, temperature trends in Indonesia have positive value trends with amounts varying around 0.03° C each year. The building facade has a very large impact on all aspects of building performance. This directly affects the peak of heating and cooling, and indirectly affects the lighting load when the sun is on. By developing the concept of Green Building in a passive design by optimizing the design of the building facade so that it impacts on energy efficiency and reduces life cycle costs. How to apply the building façade concept optimally so that energy efficiency occurs and lower life cycle costs. To achieve this goal, the authors have conducted a comprehensive literature review. In this paper, we will examine twenty-five recent studies using the literature study method to obtain facade variables that greatly affect energy efficiency and life cycle costs. It is hoped that important factors will be obtained which will be used in the development of research to be carried out in Jakarta. Keywords: Green Building, building façade, building envelope, energy efficiency, life cycle cost, project management Share Link | Plain Format | Corresponding Author (RR. Coryna Yusi Rachmawati)

127	Civil Engineering	ABS-1057
Investigate Park And Ride Performance Assessment For The Better Sustainable Urban Transportation In Surabaya Fitri Rohmah Widayanti (a*), Amanda Ristriana Pattisinai (b) a) Department of Civil Engineering, Faculty of Engineering Universitas Negeri Surabaya, Ketintang Surabaya *fitriwidayanti[at]unesa.ac.id b) Department of Civil Engineering, Faculty of Engineering Universitas Negeri Surabaya, Ketintang Surabaya Abstract The increasing number of vehicle ownership increases the demand for road space for traffic activities, one of which is parking facilities. Parking lots on the side of the road cause a decrease in the capacity of the road, therefore it is necessary to provide parking building facilities (Park and Ride). The existence of parking building facilities must support the safety and smooth traffic. Evaluation also needs to be done to determine the quality of service that must be provided by the manager to users, in addition to smooth traffic as well as to meet user expectations of parking facilities. The purpose of this study was to determine the assessment of the quality of service from the Mayjen Sungkono Surabaya Parking Building in terms of user perception. The method used in this study was a questionnaire survey in the Mayjen Sungkono Surabaya parking building with a sample of 120 respondents. The results showed that in general parking building users were not satisfied with the services of Mayjen Sungkono Surabaya parking building management, one of which was in terms of the reliability of parking attendants. Keywords: park and ride;User Perception Share Link | Plain Format | Corresponding Author (FITRI ROHMAH WIDAYANTI)

128	Civil Engineering	ABS-549
Increasement Strategy of Development Productivity and Developer’s Sales of Subsidized Housing at Bekasi Regency [1 ]Indra Yanastyapricena [2] Ayomi Dita Rarasati [3] Wisnu Isvara [4]Rahma Nur Ilma [1] [2] [3] Civil Engineering Department of University of Indonesia ,[4] Architecture Department of Brawijaya University Abstract Sales of subsidized houses is a strategy of PT. Bank Tabungan Negara (Persero) Tbk Bekasi to increase development productivity and sales of subsidized housing developers, considering that BTN Bekasi Branch Office is one of the largest branches in terms of distribution of Subsidized Mortgages so that it can represent national scale data. This research was carried out with a causal design with SEM (Structural Equation Modeling) analysis. The study population is consumers in the city of Bekasi, amounting to 413 with 207 samples taken using the Krejcie table (α = 0.05). Sampling using proportional random sampling by lottery. Data collection was carried out using a closed questionnaire. The results of this study, illustrate the model of the relationship between exogenous and endogenous variables proven to be fit of the model, so the results of the hypothesis test show that (1) the higher the quality of the building, the more complete the utilization of infrastructure, and the more strategic the location, the higher the sales of subsidized houses ( α = 0.05); (2) the higher the quality of buildings and the more complete utilization of infrastructure, the higher the sales of subsidized housing through location intervening variables (α = 0.05). The results of this study can be concluded, "the presence of a very strategic location intervening variable that can strengthen the exogenous variable quality of buildings and infrastructure" towards the endogenous variable subsidized home sales. Therefore, PT. Bank Tabungan Negara (Persero), Tbk Bekasi Branch Office must improve its strategic location. *Keywords : Building Quality, Facilities & Infrastructure, Location, Sales, Backlog Keywords: Building Quality, Facilities & Infrastructure, Location, Sales, Backlog Share Link | Plain Format | Corresponding Author (Indra Yanastyapricena)

129	Civil Engineering	ABS-1061
Analysing Resilient Modulus of Asphalt Mixture Modified with Crumb Rubber Tanya Audia Balqis Universitas Indo Global Mandiri Abstract Previous research have been done to find alternative materials that can be used as an modified of asphalt mixture for improving the characteristics of the mixture. This research presents a evaluation of resilient modulus laboratory test results using the Universal Material Testing Apparatus (Umatta) according to ASTM D 4132 guidelines. Umatta testing was carried out to obtain mixed strength values. In this study, the resilient modulus test was carried out using 6.3% of asphalt content and 15% of Crumb Rubber (CR) content with 2 test temperatures, namely normal and maximum temperatures. Determination of temperature is based on maximum temperature in Indonesia, especially in Palembang. The resilient modulus test results of the modified mixture with CR is 1560.5 MPa. While the normal mixed resilient modulus value according to Indonesian Pavement Design Guidelines 2017 is 1100 MPa. While based on Umatta testing value, the resilient modulus with CR can be increased by 41.8%. Future research can be carried out using a comparison of the strength of these materials for analysis of stress and strain responses in the pavement structure with Mechanistic-Empirical Method. Keywords: Crumb Rubber, Umatta, Resilient Modulus Share Link | Plain Format | Corresponding Author (Tanya Audia Balqis)

130	Civil Engineering	ABS-39
Project Planning System Improvement in Residential Development Project: A Risk Analysis Miftah Arief, Yusuf Latief University of Indonesia Abstract Project planning must be an integral part of the housing construction industry so that project performance can be achieved more efficient and have an impact on schedule performance. A clear and detailed understanding is needed of what is within the scope of the project and what are the risks identified in the project planning phase. Project planning is expected to be able to provide solutions to detailed work structures as well as flexibility to be able to adapt to the environment of unique project activities and to accommodate the projects organizational system and business changes or improvements made by the company. This study aims to parse the risks in project planning of residential development projects by identifying 10 knowledge areas and 24 planning processes in the 6th edition of the 2017 PMBOK (Project Management Body of Knowledge) using qualitative risk analysis approach to create an understanding and to mitigate the high risk factor. Referring the research results, a preventive action in each of the high risk indicator has been prepared to be integrated in the planning guideline (standard operating procedure). This risk analysis performed to be used as a strategy to improve the residential development schedule performance. Keywords: Residential Project Planning, PMBOK, Schedule Performance, Risk Management Share Link | Plain Format | Corresponding Author (Miftah Arief)

131	Civil Engineering	ABS-1063
Compressive Stress-Strain Behavior of Concrete with Artificial Lightweight Aggregates and Steel-Fibers Meity Wulandari Universitas Negeri Surabaya Abstract Artificial lightweight aggregate used in the concrete mix is able to reduce the volume of concrete so that when applied to structural concrete it will reduce the weight of the structure. To be used in the structural concrete mix, the compressive strength produced must be able to meet the minimum requirements of structural concrete compressive strength. The addition of steel fibers to concrete with artificial lightweight aggregate can provide a good behavior change to its mechanical properties. This research was conducted experimentally which investigated compressive stress-strain behavior, the main ingredients used to make artificial lightweight aggregate were styrofoam and acetone with the composition of 0% -100% of coarse aggregate and to increase the compressive strength of steel fibers by 0% -1.5% from the specimen volume. The specimen used was a 100x200 mm cylinder tested using a Universal Testing Machine, the output obtained was the value of stress and strain. The test results show that the stress-strain of the concrete increases with increasing steel fiber composition. Strain value increased by 23% from normal concrete strain. The compressive strength produced from concrete with a mixture of lightweight artificial aggregates and steel fibers is able to reach the minimum concrete compressive strength requirements. Keywords: artificial lightweight aggregate; steel-fibers; stress-strain; compressive strength Share Link | Plain Format | Corresponding Author (Meity Wulandari)

132	Civil Engineering	ABS-1064
Investigating the Sans Pareil Streetscape Configuration for Creating Thermal Comfort Urban Place in Surabaya AR Pattisinai, FR Widayanti Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Surabaya, Indonesia, 60231 Abstract Abstract. The case of climate change expand accelerated than before caused by human-made emissions happened in the street. Coastal cities such as Surabaya are needed a thermal comfort urban place to be the solution. Through the sans pareil streetscape, we can understand which configuration are more (or less) effective for creating thermal comfort urban place. To explore this, we surveyed Raya Darmo Street, Polisi Istimewa Street, and Diponegoro Street Surabaya, Indonesia (N=125). The method using is micro climate analysis with software ENVImet which simulated the micro-scale interactions among urban surfaces, vegetation, and the atmosphere. In this method, it is necessary to measure the thermal comfort index by computing the Temperature Humidity Index (THI) from the data for each thermal station. In the results of this microclimate analysis, nine color distributions produced, which showed that the more concentrated the blue color, the lower the relative value, while the younger the red color, the higher the climate level. From the color distribution at 12 a.m., showed that no comfortable spaces found on all three streetscapes. There are as many as 90% of streetscape cuts included in the criteria for being uncomfortable on Diponegoro Street. On Raya Darmo Street and Polisi Istimewa Street are included in the requirements of being uncomfortable with a percentage of 49% while the rest are moderate criteria. Keywords: streetscape, micro climate, thermal comfort Share Link | Plain Format | Corresponding Author (Amanda Ristriana Pattisinai)

133	Civil Engineering	ABS-1065
STUDY ON DEVELOPMENT OF CITRA SATELLITE REMOTE SENSING FOR MAP UPDATING STUDIES Satriana Fitri Mustika Sari (a*) and R Endro Wibisono (a) a) Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Surabaya, Ketintang, Surabaya, 60231, Indonesia. *satrianafitri[at]unesa.ac.id Abstract During the past 10 years, the city of Surabaya has experienced many changes in land use, especially land in East and West Surabaya where open land (rice fields, fields, ponds) has undergone a change to built up land, especially housing. The purpose of this study is to determine changes in land cover that occurred as a whole in the city of Surabaya from 2002 to 2014, to get the largest land cover changes that occurred in the East and West of the city of Surabaya. Multi-temporal satellite imagery method to determine changes in land cover that occurred as a whole in the city of Surabaya from 2002 to 2009. Results from the satellite classification of Landsat imagery data were analyzed using comparative analysis to obtain changes in built land cover, Green Open Space (GOS) and waters in the city of Surabaya. The classification method used is guided classification with object oriented. Study of Development of Remote Sensing Satellite Imagery for Updating Map Studies (Case Study: Surabaya City) requires the ability to apply and develop the results of research to be carried out for the benefit of society in general and the advancement of education in particular. Keywords: Citra Landsat; Current map; Land cover; Multi temporal; Green Open Space. Share Link | Plain Format | Corresponding Author (Satriana Fitri Mustika Sari)

134	Civil Engineering	ABS-555
Effect of Supply Chain Management (SCM) on Competitiveness in the Construction Industry G J Johari, I Farida, A Susetyaningsih, E Walujodjati and S Permana Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Garut, Indonesia Abstract The role of construction services is increasing but not yet optimal, as seen in the fact that the share of foreign construction services in Indonesia is still quite large, as well as the development process that is not yet effective and efficient. The role of the construction industry in the economy can also be seen in terms of employment potential, material needs and impacts, public regulations that support the economy and including the effects of the expansion of the construction industry on the economy, distribution for society. The following research is included in the applied research category or applied research, namely, research aimed at solving problems faced by managers in the work environment. The author uses descriptive and explanatory research methods. The purpose of this study is the implementation of Supply Chain Management (SCM) to the contractor, knowing the competitiveness of the construction industry at the contractor, the effect of Supply Chain Management (SCM) on the competitiveness of the construction industry at the contractor. The results of this study indicate that there is a positive and significant influence of Supply Chain Management (SCM) on the competitiveness of the construction industry in contractors. Keywords: Supply Chain Management; competitiveness; contractor Share Link | Plain Format | Corresponding Author (Ganjar Jojon Johari)

135	Civil Engineering	ABS-48
EVALUATION OF RISK QUALITY CONTROL IN CONSTRUCTION COMPANY Aries Kurniawan, Yusuf Latief University of Indonesia Abstract Risk becomes one of the unexpected things that can happen and causes the project target not to be achieved according to the plan [3]. Risk is a situation where there is uncertainty and the level of uncertainty can be measured quantitatively and can cause loss [3]. This study aims to identify dominant (high) risk in the quality control process, especially in construction projects, which can result in not achieving the output indicators of the Project Quality Management Process according to the Project Management Body of Knowledge (PMBOK) 6th edition 2017 and steps to be taken to improve the existing Quality Management System against dominant (high) risk. The method used in this study are literature review and archive analysis, expert validation, pilot survey and respondent questionnaire. The results of this study found that there were 3 dominant (high) risks that affected the implementation stage of quality control, namely the error of contract document review, multiple interpretations of contractual material (equipment and material specifications) and the contents of contract documents (addendum). Steps taken to improve quality control related to the dominant risks found include developing procedures related to employee competencies in particular the project team and updating existing procedures related to Contract Administration Keywords: Quality Control, Risk, Project Management Body of Knowledge (PMBOK) 6th edition 2017, Indicator, Quality Management Process, Dominant (high) Risk Share Link | Plain Format | Corresponding Author (Aries Kurniawan)

136	Civil Engineering	ABS-304
Structural Equation Model (SEM) Relationship between Location and Building Height and Work Breakdown Structure (WBS) toward Safety Costs at Rental Apartements Zulfatun Mahmudah (a*), Yusuf Latief (b) Civil Engineering Departement, Faculty of Engineering , Universitas Indonesia, Depok 16424, Indonesia Abstract Occupational Health and Safety at the construction is still hampered from the budget side and mindset that OHS is an additional cost. As a result, decisions related to OHS may not be based on ethical considerations and basic rights to a safe workplace, but in the economic field. This study focuses on analyzing the relationship of building location, height of building and work breakdown structure to OHS costs and further reviewing the factors in these variables that are the dominant effect on OHS costs. The purpose of this study is to analyze the factors in each variable that has a dominant effect on occupational health and safety cost and analyze the relationship between location variable, height of building and WBS to the health and safety cost model in at flat construction projects using Structural Equation Model - Partial Least Square (SEM-PLS) . Keywords: Effect, Relationship, Occupational Health and Safety Cost, Location, Height of Building, Wbs, SEM-PLS Share Link | Plain Format | Corresponding Author (Zulfatun Mahmudah)

137	Civil Engineering	ABS-305
Information System Development of Knowledge Base Integration Management System Quality, Safety and Environmental to improve organizational performance in Construction Company Retno Apriyati (a), Yusuf Latief (b) Faculty of Engineering, University of Indonesia Kampus Baru UI Depok Jawa Barat – 16424 Indonesia Phone: +62 21 786 7222 Abstract Development in Indonesia showed high progress in the economics but had low progress for social; institutional; and in environmental sectors. Furthermore, Indonesian Construction Company still inhibited by low competitiveness; along Safety system management application; safety record and bad occupational health. Based on Indication in above, it’s necessary to apply an integrated management system between Quality, Safety and Environmental for manage the projects construction. The Implementation of an integrated management system, it’s necessary to improve with online integrated management system; due to accelerated targets achievement for real monitored all business aspects process. Therefore, this research aim to develop information system of Knowledge Base Integration Management System of Quality, Safety and Environmental to improve organization’s performance on Construction Service Company. This research was conducted with case studies and expert validation for the integration model, objectives and risk relationships. The results of the study were developed into an information system based on the Knowledge Base Integration Management System of Quality, Safety and Environmental. Keywords: knowledge base, Process Integration, Quality, Safety and Enviromental System Management, organizational performance in Construction Company Share Link | Plain Format | Corresponding Author (Retno Apriyati)

138	Civil Engineering	ABS-55
Study of Palangpang Bridge Foundations in the Area Potential to Liquefaction Throughout the Cimandiri Fault A K Somantri (a), Iskandar (a), A Febriansya (a*), B A Daffa (b), R I Hermawan (b) (a) Civil Engineering Department, Politeknik Negeri Bandung, Jln. Gegerkalong Hilir, Ds. Ciwaruga, Bandung, Indonesia *aditia.febriansya[at]polban.ac.id (b) Student of Civil Construction Study Program, Civil Engineering Department, Politeknik Negeri Bandung, Jln. Gegerkalong Hilir, Ds. Ciwaruga, Bandung, Indonesia Abstract Liquefaction is a phenomenon that occurred due to loss of shear strength of soil caused by earthquake. In general, liquefaction happened during earthquake with big magnitude, on very loose to loose sand, and high ground water level. Palangpang bridge is located in Ciwaru area, Sukabumi district, West Java province, Indonesia and located over the Cimandiri fault. According to the history of seismicity in the area of Palangpang Bridge were having experienced earthquake up to 25 times in the last 50 years. In this paper, liquefaction potential analysis at the bridge foundation will be conducted with qualitative and quantitative method. Based on the cone penetration test (CPT) result, in the area of Palangpang Bridge, the soil layer that withstand the load of bridge is alluvium soil with beach sand sediments, and the ground water level was 2.5-3.0 meter below ground surface. The result of liquefaction potential analysis shows that the soil layer at the depth of 9 meter below surface were having liquefaction, so that the foundation of Palangpang Bridge needs to be reinforced. Reinforcement design were to add 8 piles to the existing pile configuration for each footing so that the bridge can operate safely. Keywords: arthquakes, Liquefaction, Cyclic Resistance Ratio, Cyclic Stress Ratio Share Link | Plain Format | Corresponding Author (Aditia Febriansya)

139	Civil Engineering	ABS-1080
Utilization of Fiber Glass as an Additive Material in Concrete K A Sambowo, R A Sumarno, I M Malik Department of Civil Engineering, Engineering Faculty, State University of Jakarta Abstract Concrete material has a weakness in the very low flexural or tensile strength which is only around 9% - 15% of the compressive strength value. An alternative to increase the flexural strength of concrete is by adding fiber into the concrete mixture so that the flexural strength can increase in the concrete. Fiberglass is a composite material, which is liquid glass that is drawn into thin fibers in the form of threads and then impregnated with polyester plastic resin so that it has a tensile ability that can reach 3445 MPa and is corrosion resistant. This study used a prism beam sample of 15 cm X 15 cm X 60 cm, and a cylindrical sample of 15 cm in diameter and a height of 30 cm as a control of concrete compressive strength. Variation in levels used was 0%, 0.5%, 1%, 1.5% and 2% of the weight of cement. The control concrete compressive strength was 38,94 MPa with a water cement ratio of 0.46. The results showed that the value of concrete flexural strength of fiberglass concrete at levels of 0%, 0.5%, 1%, 1.5% and 2% were 3,86 MPa, 4,06 MPa, 4,09 MPa, 4,56 MPa and 4,71 MPa respectively. Keywords: Concrete, Fiberglass, Compressive Strength, Flexural Strength Share Link | Plain Format | Corresponding Author (Kusno Adi Sambowo)

140	Civil Engineering	ABS-58
Deformation Behavior of Gedebage’s Soft Clay against Lightweight Embankment Construction Iskandar (a), A K Somantri (a), A Febriansya (a*), A B Wicaksono (b), A M Hariono (b) (a) Civil Engineering Department, Politeknik Negeri Bandung, Jln. Gegerkalong Hilir, Ds. Ciwaruga, Bandung, Indonesia *aditia.febriansya[at]polban.ac.id (b) Student of Civil Construction Study Program, Civil Engineering Department, Politeknik Negeri Bandung, Jln. Gegerkalong Hilir, Ds. Ciwaruga, Bandung, Indonesia Abstract In the process of construction and the service period of highway construction, problems often occur because of relatively soft base soil conditions, for example the soil located in Gedebage Area, Bandung City. Problem that occur in the form of a large base soil settlement over a long period of time. One of the solutions carried out in this study is the use of a mixture of soft clay soil stabilized by 25% fly ash and 0.4% expanded polystyrene (EPS) as a lightweight embankment material. This study compares of deformation on base soil between lightweight embankment and control embankment under load, and to obtain total settlement at each stage of full-scale construction with limit equilibrium method using GeoStudio 2016. The research method used is by loading the prototype of embankment model with 1:10 laboratory scale. Soil parameters obtained from the verification results were used to model the full-scale construction and stage construction with GeoStudio 2016. The result shows that by using 0.4% EPS and stabilized with 25% fly ash can reduce the total base soil settlement by more than 50%. In the analysis of the full-scale lightweight embankment construction model with GeoStudio 2016 software, total base soil settlement of 268.927 mm was obtained. Keywords: Soft Soil, Embankment, Expanded Polystyrene, Deformation, Stage Construction Share Link | Plain Format | Corresponding Author (Aditia Febriansya)

141	Civil Engineering	ABS-826
Seismic Design of Beam Column Joint Rahmani Kadarningsih (a*) (a) Universitas Negeri Gorontalo (*) rkadarningsih[at]ung.ac.id Abstract Beam column joints are crucial zones in reinforced concrete frame which resist high shear force, therefore it should be designed specially . The parameters affect joint behavior, including concrete strength, concrete dimensions, joint stirrup, beam reinforcement and axial load columns. Amount of the joint mechanism models and the joint reinforcement designs have been developed. To increase the amount of joint stirrup only to certain limit, therefore to increase the shear strength should be in another method. The use of the implant king cross steel profile in the joint as in previous studies encountered several obstacles. This paper reviews previous research on joint strengthening with a composite system and proposed new design. Keywords: joint, reinforcement, stirrup, king cross profile, Share Link | Plain Format | Corresponding Author (Rahmani Kadarningsih)

142	Civil Engineering	ABS-65
Shear capacity of hybrid high-strength reinforced concrete beams containing additives and aggregates substitution added with iron ores as filler Teuku Budi Aulia (a*), Yulia Hayati (a), Yunita Idris (a), Cut Fatmawati TA (a) Syiah Kuala University, Banda Aceh 23111, Indonesia Abstract The need for complex infrastructures with high serviceability is rapidly increasing which can be accommodated by the use of high-strength concrete. Indonesia as an earthquake-prone region requires such infrastructures possessing high structural capacity in carrying shear forces. However, the large use of cement in high-strength concretes makes it environmentally-unfriendly. As almost 60% infrastructures development worldwide using concrete, the availability of aggregates originating from natural resources is certainly diminishing. This research purpose was to analyze the shear capacity of hybrid high-strength reinforced concrete beams using substitution of cement, fine and coarse aggregates, i.e., 15% geopolymer coal flyash (CFA) + 10% pozzolanic sand (PZS) + 40% palm oil blast furnace slag (POSA) named H-CPPA; 15% CFA + 20% palm oil blast furnace slag (POSS) + 40% POSA (H-CPSPA); 15% palm oil blast furnace slag ash (POSFA) + 10% PZS + 40% POSA (H-PFPPA); 15% POSFA + 20% POSS + 40% POSA (H-PFPSPA); 10% geopolymer pozzolanic flyash (PFA) + 10% PZS + 40% POSA (H-PZPPA); 10% PFA + 20% POSS + 40% POSA (H-PZPSPA). One beam without substituting flyash and aggregates (H-PB) was casted to compare its capacity. All beams added with nano iron ores as much 6% from cement weight as filler. To guarantee the shear failure, the capacity ratio of flexure to shear was set to 2.292. Based on results, the shear capacity of hybrid high-strength reinforced concrete beams using cement and aggregates substitution ranges 77,98% - 92,28% compared with plain beam, but, generates better the structural ductility in the range of 93,26% - 156,46% and the maximum deflection in amount of 80,82% - 110,33%. It can be summarized that substitution of such geopolymer flyash and industrial wastes can enhance shear capacity of hybrid high-strength reinforced concrete beams, the overall, CPSPA had yielded the best value. Keywords: Shear capacity, hybrid high-strength reinforced concrete beam, geopolymer additives, aggregates substitution, nano iron ores Share Link | Plain Format | Corresponding Author (Teuku Budi Aulia)

143	Civil Engineering	ABS-833
The Concrete Shear Capacity of the Interior Beam Column Joint Subjected to Seismic Load Rahmani Kadarningsih (a*) (a) Universitas Negeri Gorontalo (*) rkadarningsih[at]ung.ac.id Abstract The beam column joint is the most vulnerable area in the moment resisting frame system. The failure in this area can causes the failure of the overall system. The beam column joint must be in elastic behaviour, therefore the beams which assembling in the joint achieve the flexural capacity. The condition of the joint will be even more critical during an earthquake. The seismic load causes the beams that arranged in the interior column resist a directional moment. This condition is different from the behaviour of the beam when resist the gravitation loads. This study shows how beam column joints without reinforcement are not adequate to resist the lateral earthquake load that occurs. The joint is only adequate to resist the load in the amount 38% of the beams flexural capacity. The amount of concrete shear capacity on the joint is compared to the joint concrete shear capacity on SNI 2847:2013 and the joint shear capacity of Park and Paulay (1974). The calculation of the concrete shear capacity on the SNI 2847:2013 reached 80.2% the joint shear capacity of the experiment. The calculation of the concrete shear capacity of the Park and Paulays reached 31.2% joint shear capacity in the experiment. Keywords: joint, reinforcement, stirrup, king cross profile Share Link | Plain Format | Corresponding Author (Rahmani Kadarningsih)

144	Civil Engineering	ABS-66
Analysis of Occupational Health and Safety (OHS) Cost Structure in Road Infrastructure Construction Project Based on Work Breakdown Structure (WBS) Ressa Adrian Bernessa, S.T. (a*); Prof. Dr. Ir. Yusuf Latief, M.T. (a) a) Faculty of Engineering, University of Indonesia Jl. Margonda Raya, Pondok Cina, Kecamatan Beji, Kota Depok, Jawa Barat, Indonesia, 16424 *ressa.adrian[at]ui.ac.id Abstract Abstract. In the last five years in Indonesia, the toll road construction project has become one of the most massive developments, with 65 toll roads and 4 national roads included in the National Strategic Projects list (PSN). However, along with the increase in construction projects in Indonesia in general the number of work accidents has also increased. in the period of 2017 to 2019, 54.5% of the number of construction accidents came from toll road projects. This results in significant losses such as loss of life, time, cost and so on. Wirahadikusumah (2019), the aspect that can improve working safety conditions is the availability of a decent budget and specifically allocated for the implementation of SMK3 in construction projects. Rzvi and Elnathan (1999), Activity-Based Costing method can provide information on neglected cost items in the construction method. So that OHS cost information on road construction projects can be available accurately starting from defining work activities based on Work Breakdown Structure (WBS). The research method used is archive analysis, surveys involving construction experts, and previous project case studies. This study produces a ratio of OHS costs to contract values in road construction projects so as to improve work safety. Keywords: Road Construction, Work Breakdown Structure (WBS), Risk, Safety Plan, OHS Cost Share Link | Plain Format | Corresponding Author (Ressa Adrian Bernessa)

145	Civil Engineering	ABS-837
Performance quality of waste-based paving block using rebar tie wire supplementary Anisah, Iqbal Anugrah Pratama, Daryati, Sittati Musalamah, Kusno Adi Sambowo, Prihantono, Ririt Aprilin Sumarsono Universitas Negeri Jakarta Abstract The construction industry undeniably contributes to the CO2 emission to the earth due to the time-consuming process and high energy needed. Steel, concrete, iron, glass and plastic material are commonly used in the construction site so as the waste can be seen around. Construction waste treatment is potentially reused for another construction product due to its good material properties. Rebar tie wire is one of the beneficial construction wastes besides steel due to its remarkable compressive and tensile properties. Utilization of rebar tie wire addition for enhancing the mechanical properties of a paving block will be the focus of this paper. The tensile strength of rebar tie wire was recorded up to 173 MPa which is strongly possible to increase the mechanical properties of the paving block. The percentage of the rebar tie wire addition was limited until 3.5% to the weight of cement. The water-cement ratio of the paving block mixture was locked to 0.3, other than that the proportion of cement to sand was 1 to 2.5. The target of A type of paving block based on SNI 03-0691-1996 was reached by the addition of rebar tie wire between 2% and 3.5% which best compressive strength of 46.67 MPa resulted from 3% of addition. Moreover, the abrasion and absorption test showed the same good result as the quality of compressive strength. Keywords: rebar tie wire, waste-based paving block, compressive strength, absorption test Share Link | Plain Format | Corresponding Author (Anisah anisah)

146	Civil Engineering	ABS-587
SETTLEMENT AND SLOPE STABILITY ANALYSIS OF LANDFILL SITE FOR SUSTAINABLE UTILIZATION I Wayan Ariyana Basoka (a*), I Nengah Sinarta (b) a) Departement Civil Engineering, Engineering and PLanning Faculty, Universitas Warmadewa, Bali, Indonesia *)basokaariyana[at]gmail.com b) Departement Civil Engineering, Engineering and PLanning Faculty, Universitas Warmadewa, Bali, Indonesia Abstract Waste accumulation in a landfill is often make a problem, especially when the landfill has reached the end of its service life, so there is a need for further utilization of the landfill, one of the things that can be done is to utilize the landfill as a place where a building can be built. In this study, a review of the waste deformation and slope stability uses the Plaxis Program to determine whether the landfill is able to withstand the burden of existing buildings. The research is located at Piyungan Yogyakarta Landfill. Material data in the form of the value of the friction angle, the volume weight of waste, and the modulus of elasticity. From the results obtained, it is known that the deformation of waste that occurs shows a significant settlement in foundation so that not all buildings can be recommended to be built on the landfill site, and the value of safety factor generated from PLAXIS shows that the slope is still safe to withstand the load. Keywords: Landfill, Suistainable, Settlement, Safety Factor, Plaxis Share Link | Plain Format | Corresponding Author (I Wayan Ariyana Basoka)

147	Civil Engineering	ABS-843
Investigation of Slag Supplementary to The Concrete Rigid Pavement Mix Design Sittati Musalamah, Anisah, Daryati, Ririt Aprilin Sumarsono, Tri Rosma Yanti Universitas Negeri Jakarta Abstract The utilization of slag as cement replacement has been widely developed for the concrete mixture. It is shown by the increment of the concrete performance even though unique characteristics during the cement-slag reaction were present. Slag is the waste of the steel industry which has various qualities. Unfortunately, this type of waste is not well identified in past research as supplementary material for the concrete. This paper will study the best proportion of slag cement as supplementary material in concrete for the special use of the rigid pavement. Solely, the mix design criteria for the experiment is not available yet so that preliminary experiment both physical and chemical are investigated for the special purpose of the target of minimum high strength concrete of 35 MPa. The chemical substances of two main oxides of sodium and potassium from ordinary Portland cement is essential to see the alkali activity that leads to the strength quality of the concrete specimen. Otherwise, the consideration of water-cement ratio must be relevant to the quality of concrete matrices. Keywords: slag cement, mix design, rigid pavement, water-cement ratio Share Link | Plain Format | Corresponding Author (Sittati Musalamah)

148	Civil Engineering	ABS-1099
COMPARISON OF LABORATORY TEST AND IN-SITU TEST RESULTS AGAINST BORED PILE FOUNDATION BEARING CAPACITY (CASE STUDY OF FOUNDATION BRIDGE SIDO MUKTI II GORONTALO PROVINCE) Fadly Achmad Civil Engineering Department, Engineering Faculty Gorontalo State University, Jl. B.J. Habibie Bone Bolango Regency Gorontalo Province fadly[at]ung.ac.id Abstract Sidomukti II bridge is one of the main accesses of the village of Banuroja to the downtown of Pohuwato Regency. This bridge was built in 2017 with bored pile foundation construction. In analyzing the carrying capacity of the soil, surely it is not free from direct research in-situ test and laboratory tests. The large carrying capacity of the soil is obtained from the analysis of soil investigation. Soil investigations conducted in the field in the form of a Standard Penetration Test (SPT), and drilling. SPT test is widely used in Indonesia because it is very useful to obtain variations in soil density. While drilling is used to describe the soil profile at a certain depth. The research method is in the form of analysis of bearing capacity based on comparison of the results of in-situ tests and laboratory tests. Soil results from drilling are taken in 2 conditions namely disturbed conditions to describe each layer and undisturbed samples to be tested in a laboratory with a direct shear test or unconfined compressive strength. The results show the value of the carrying capacity of the land permit based on the results of the in-situ test gives a greater value than the value of the carrying capacity of the land permit based on laboratory test results. Keywords: Bearing Capacity, Bored Pile, In-situ Test, Laboratory Test, Sido Mukti II Bridge Sidomukti II bridge is one of the main accesses of the village of Banuroja to the downtown of Pohuwato Regency. This bridge was built in 2017 with bored pile foundation construction. In analyzing the carrying capacity of the soil, surely it is not free from direct research in-situ test and laboratory tests. The large carrying capacity of the soil is obtained from the analysis of soil investigation. Soil investigations conducted in the field in the form of a Standard Penetration Test (SPT), and drilling. SPT test is widely used in Indonesia because it is very useful to obtain variations in soil density. While drilling is used to describe the soil profile at a certain depth. The research method is in the form of analysis of bearing capacity based on comparison of the results of in-situ tests and laboratory tests. Soil results from drilling are taken in 2 conditions namely disturbed conditions to describe each layer and undisturbed samples to be tested in a laboratory with a direct shear test or unconfined compressive strength. The results show the value of the carrying capacity of the land permit based on the results of the in-situ test gives a greater value than the value of the carrying capacity of the land permit based on laboratory test results. Keywords: Bearing Capacity, Bored Pile, In-situ Test, Laboratory Test, Sido Mukti II Bridge Share Link | Plain Format | Corresponding Author (Fadly Achmad)

149	Civil Engineering	ABS-846
2. Furnace temperature of coffee grounds as organic waste-based cementitious material in concrete Anisah, Maulody Nugroho, Santoso Sri Handoyo, Ririt Aprilin Sumarsono, Sittati Musalamah, Agphin Ramadhan, Kusno Adi Sambowo, Arris Maulana Universitas Negeri Jakarta Abstract Organic waste results as a high impact as inorganic material to our environment which rise the alert to manage them seriously. For several years, the idea of recycling has been effective as the solution prominently in the construction and material field. Accordingly, this paper discusses the significance of organic waste-based material from the coffee powder utilized as the 5% cement replacement in concrete. Ultimately, the temperature variation of the muffle furnace to derive into coffee grounds is investigated chemically and mechanically to the compressive strength of concrete. Furnace temperature variation was set from 600°C up to 750°C for 2 hours which disclosed dominant potassium oxide. Else, some chemical components as found in cement was present except silicon oxide which predominantly appears in cement to increase concrete strength. The higher the temperature applied; the less proportion of chemical components resulted from. However, the chemical reaction between coffee grounds, cement and other matrices in concrete mixture generated better compressive performance in accordance with the furnace temperature climb reaching over 40 MPa which was above the targeted control sample. Even though the reactivity of the mixture was not detail observed, the coffee grounds ash obtained from 750°C furnace process was eligible as cement replacement in the concrete mixture. Keywords: Furnace temperature, coffee grounds, compressive performance Share Link | Plain Format | Corresponding Author (Anisah anisah)

150	Civil Engineering	ABS-79
The Influence of Ground Granulated Blast Furnace Slag (GGBFS) as Portland Composite Cement (PCC) Substitution in Improving Compressive Strength of Concrete Reni Raafidiani (a*), Sumargo (b) (a) Master of Applied Infrastructure Engineering Study Program, Civil Engineering Department, Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung, Indonesia (b) Civil Engineering Department, Universitas Jenderal Achmad Yani, Jl. Terusan Jenderal Sudirman, Cimahi, Indonesia Abstract Concrete is a construction material that is extensively used to build various infrastructures. The increasing of basic human facilities and infrastructures resulting in increasing needs of concrete and cement as concrete forming material. Cement is the result of calcination of lime which in the process results in the release of carbon dioxide (CO2). To mitigate this problem, many researches have been done to find replacement for cement. Geopolymer concrete is an alternative to reduce part of cement. Ground Granulated Blast Furnace Slag (GGBFS) that consist of silica and alumina can be used as binder to replace part of Portland Composite Cement (PCC). In this study, concrete compressive strength tests were carried out on 48 specimens of concrete cylinder 15x30 cm. The ratio of substitution GGBFS:PCC used were 0/100, 40/60, 50/50 and 60/40. The specimens were cured at room temperature then tested at the age of 7, 14, 21 and 28 days. The results show that the average compressive strength of concrete at the age of 28 days that GGBFS:PCC ratio of 0/100, 40/60, 50/50 and 60/40 were 26.50, 23.01, 26.50 and 22.56 MPa, respectively. Based on the analysis, 50% substitution of GGBFS can be used to partially replace cement because it has almost the same compressive strength as normal concrete. Keywords: GGBFS, PCC, Compressive Strength, Geopolymer Share Link | Plain Format | Corresponding Author (Reni Raafidiani)

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