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151	Civil Engineering	ABS-336
The Use of Lapindo Mud and Emulsion Asphalt as Mixed Materials in Soil Stabilization Resti Meysita Pramaesti (a*), Syahril (b), Hendry (b) a) Master of Applied Infrastructure Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Ds Ciwaruga, Bandung 40012, Indonesia b) Departement Of Civil Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Ds Ciwaruga, Bandung 40012, Indonesia Abstract Soil conditions in the Gedebage area greatly affect the type of foundation used. The soil expansive is a type of soil that is soil properties such as high plasticity, high swelling, and large shrinkage potential. Soil improvement using mixed materials is mostly done to stabilize the soil. The stabilization used is emulsion asphalt which is locked of 8% and Lapindo mud variation of 3%, 6%, 9% and 12%. The results of physical and mechanical properties on soil material with stabilization of Lapindo mud and emulsion asphalt were obtained that the specific gravity increased by about 68%, with the density value (ωopt) of 16% and the dry weight content (d) of 6%. for the plastic index value on the original soil 47% while for mixture 1 is 15.72%, mixture 2 is 16.6%, mixture 3 is 9.5% and mixture 4 is 17.7%. CBR testing was taken forvariable 3 becauseit has the significant result of plasticity index which is is less than 10%. so that the results of this test were obtained by curing time of 14 days unsoaked by 8.1% for soaked by 4.6%. In the compressive strength testing, the more Lapindo mud mixture, the less compressive strength by. Keywords: Stabilization, Lapindo Mud, Asphalt Emulsion Share Link | Plain Format | Corresponding Author (Resti Meysita Pramaesti)

152	Civil Engineering	ABS-82
Development Of Standard Operational Procedure (SOP) Fire Safety System In Jakarta Mass Rapid Transit (MRT) Based On Risk Analysis Gresilia Novie Retriana University of Indonesia Abstract In an effort to cope with the fire disaster are required to have Standard Operational Procedure (SOP). With the SOP fire disaster MRT Jakarta will conduct a proper action from fire disaster procedures starting from the emergence of hotspots until one of the efforts in minimizing the impacts arising from a disaster if a fire disaster occurs. This study aims to determine the existing state and Development Of Standard Operational Procedure (SOP) Fire Safety System In Jakarta Mass Rapid Transit (MRT) Based On Risk Analysis. This study identifies risks that may arise in a fire disaster that may inhibit or even magnify the impact of a fire disaster that occur in MRT Jakarta. Then the risk response is obtained by performing maintenance and supervision of facilities and infrastructure as well as training and scheduled simulations to avoid stuttering in the face of emergency. This study also produced a Development Of Standard Operational Procedure (SOP) Fire Safety System In Jakarta Mass Rapid Transit (MRT) Based On Risk Analysis Keywords: Fire system, SOP, risk analisys Share Link | Plain Format | Corresponding Author (Gresilia Novie Retriana)

153	Civil Engineering	ABS-595
Study of Road Environmental Capacity in the School Area in Banda Aceh City Noer Fadhly1), Citra Yuliani Putri2), Yudha Baskara3) Department of Civil Engineering, Engineering Faculty of Syiah Kuala University, Darussalam Banda Aceh, Indonesia Abstract Abstract The capacity of the road environment is the number of vehicles that can be allowed to pass a road without crossing environmental quality standards. The study discusses the relationship between the environmental capacity of the road in terms of the impact of noise and air pollution caused by vehicles traveling on the road around the school area, namely Jalan T Panglima Nyak Makam in Banda Aceh. Data is collected using a Sound Level Meter measuring instrument brand Norsonic type 131, and for air pollution Data processing and analysis uses a General Motors prediction model with a real-time recording system. The level of noise and air pollution is greatly influenced by the geometric of the road, the volume and, the speed of the vehicle. The traffic volume that passes on this road is relatively the same between morning and afternoon with an average traffic volume of 486.8 pcu/hour/direction and an average speed of 33.19 km/hour. The capacity of this road is 1455.3 pcu/hour. From the research results obtained Leq values ranged from 72.8 dB (A) - 78.2 dB (A), with an average value of 76.00 dB (A). This Leq value indicates a noise level that has an impact on the community that is greater than 70 dB (A), and is still within the maximum noise threshold of 85 dB (A) and has passed the noise standard in the school area of 55 dB (A), then This road section is no longer feasible for school areas if assessed from the noise that occurs, while for air pollution produces data in the form of the calculation of the highest air pollution estimates on each observation day on Wednesday compared to other observation days at 07.00-08.00 WIB for CO pollutants (LV) 1,301 ppm, CO (HV) 0.016 ppm, NOX 0.096 ppm, and HC 0.063 ppm. This shows that the capacity on Jalan T. Panglima Nyak Makam is still feasible because the DS limit for urban roads is 0.85 and classified as this road is still able to accommodate the traffic volume with the estimated air pollution provided. It can be concluded that the road section in this school area from noise has passed the threshold but is still acceptable in terms of air pollution. Keywords: Road environmental capacity, noise, air pollution, school area Share Link | Plain Format | Corresponding Author (Noer Fadhly)

154	Civil Engineering	ABS-851
The Influence of Glass Powder toward Initial Crack and Compressive Strength of Paving Block Sittati Musalamah, Adhi Kresnoto, Kusno A Sambowo, Arris Maulana, Santoso S Handoyo Niversitas Negeri Jakarta Abstract The main chemical compound of Scanning Electron Microscopy (SEM) test of the glass powder is silica with the percentage of 75,55%. It can be categorized as a pozzolanic material. The glass powder is potential for supplementary material to the paving blocks mixtures. This study aims to determine the effect of the addition of glass powder from the glass bottle waste on paving blocks with variations in the percentage of 0% (as a control), 5%, 10%, 15%, and 20% of cement (by weight) at 28 days. The dimension of the specimen is 210 mm × 105 mm × 80 mm. All tests were carried out in accordance with SNI 03-0691-1996 concerning paving blocks. The test results show that the addition of glass powder from bottle waste can improve the quality of paving blocks. This is caused by the pozzolan effect produced from glass powder. Paving blocks compressive strength values obtained with variations in the addition of glass powder 0%, 5%, 10%, 15%, and 20% are 19,63 MPa, 25,40 MPa, 22,77 MPa, 31,78 MPa, and 26,67 MPa. All paving blocks are included in a quality according to wear resistance testing. Based on the compressive strength and abrasion value, It was found that the initial quality target was not achieved and only the optimum one able to achieve B quality (as parking lot). In the case of water absorption, the quality has improved to B quality. In the sodium sulfate resistance test, it was found that only normal paving blocks and 5% addition of glass powders did not pass the test, while in the other variations all test samples passed. Keywords: Paving Block, Glass Powder, Pozzolan, Compressive Strength, Abrasion, Water Absorption, Sodium Sulfate Resistance Share Link | Plain Format | Corresponding Author (Sittati Musalamah)

155	Civil Engineering	ABS-597
RISK ANALYSIS OF TOLL ROAD KPS PROJECT WITH SSM (SOFT SYSTEM METHODOLOGY) AT GEMPOL – BANYUWANGI TOLL ROAD P.G Suranata, P. Ika Wahyuni, IWG. Erick Triswandana(*) Civil Engineering Department of Faculty of Engineering and Planning, Warmadewa University *ericktriswandana[at]gmail.com Abstract Indonesia has a big dream in catching up with infrastructure development with other countries such as Malaysia and Thailand. The toll road as a pioneer of economic development in the future was built to connect Merak to Banyuwangi through the infrastructure of the Trans Java Toll Road. Gempol-Pasuruan, Pasuruan-Probolinggo, and Probolinggo Banyuwangi Toll Roads are the last tipping points and one of the concessionaires is PT. Jasa Marga Probolinggo Banyuwangi. Toll road construction is not free from limited infrastructure financing in Indonesia and the risks of this project disrupt project performance and affect the cost of the project, project time and building quality. Soft System Methodology (SSM) method can help solve the problem of project risks starting from identifying the risks of project implementation and analyzing the risks that might occur. This research was conducted using the purpose sampling technique to collect respondent data from 3 toll roads and then analyze it with a probability risk test, consequence risk test and soft system methodology (SSM). It can be concluded that the risk of obstacles in the mountainous region, relocation of roads that intersect with community social facilities is the most extreme risk which hinders the implementation of the construction of these 3 toll road projects. Keywords: Soft System Management, Risk Analysis, Infrastructure Share Link | Plain Format | Corresponding Author (I Wayan Gde Erick Triswandana)

156	Civil Engineering	ABS-857
Bonding Performance CFRP Plate and Concrete with Soft Layer System Rifadli Bahsuan(a*), Shinichi Hino(b), and Atsuya Komori(c) (a) State University of Gorontalo, Gorontalo, Indonesia *rifadli[at]ung.ac.id (b) Oita National College of Technology, Oita, Japan (c) Nippon Steel and Sumikin Materials Co., Ltd, Japan Abstract The use of CFRP (Carbon Fiber Reinforced Polymer) plate to strengthen RC (Reinforced Concrete) structure has become popular, nowadays. Bonding behavior between CFRP plate and concrete is an important issue in application of this method. Many research works had been done to improve the bonding performance of this method. In prior study, it was reported that the bond strength could be increased by increasing the stiffness of CFRP or using a soft adhesive layer with a small shear stiffness. With this assumption, the bond strength will be enhanced by putting a soft layer (polyurea) between CFRP plate and usual adhesive (epoxy). To obtain the complete view of bonding behavior of CFRP plate-concrete, a double face tensile test setup was conducted in this research. Both high modulus type and high tension type of CFRP plate with soft layer and without soft layer have been tested. CFRP plate used in this study had a thick of 1mm, 2mm and 4mm, respectively, and had a width of 50mm for all specimens. A Comparison between FEM analysis and experimental test results will be presented to support the accuracy and capability of this strengthening method. Keywords: Bonding properties, CFRP plate, Polyurea, Soft layer. Share Link | Plain Format | Corresponding Author (Rifadli Bahsuan)

157	Civil Engineering	ABS-603
THE COMBINATION OF GREEN CONSTRUCTION METHOD AND THE USE OF TABAS WASTE AS A SUBSTITUTE FOR CEMENT IWG. Erick Triswandana(*), NK. Armaeni, IW. Jawat Departement of Civil Engineering of Faculty of Engineering and Planning, Warmadewa University *ericktriswandana[at]gmail.com Abstract Green construction is a construction process that carries the concept of sustainability where the construction process is able to reduce environmental degradation by utilizing existing waste in the surrounding environment, contributing to reducing the level of environmental pollution, and being able to reduce waste from the construction itself. The use of tabas as a substitute for cement is one of the implementations of the green construction concept itself, where the waste of rock that produced by the temple stone craftsmen ranges between 20% -30%, which utilization is not optimal, so it often becomes waste that accumulates in the production area so that it can damage the environment due to the compounds of the tabas waste. The use of rock as a substitute for cement both reducing the amount of cement usage which produces 8% CO2 emissions where the percentage is the third largest in the world even far beyond aircraft fuel. From the results of the study using tabas rock to replace 10% of the volume of cement in the mixture, obtained a concrete strength of 22.21 MPa so that it meets the criteria as normal concrete. With the combination of green construction methods using a combination of tabas concrete and metal deck floor plates, in terms of the cost of making concrete are obtained savings by 16.8% and a reduction in the amount of construction waste originating from formwork by 40.19%. Keywords: Green Construction, Tabas Rock, Waste Materials Share Link | Plain Format | Corresponding Author (I Wayan Gde Erick Triswandana)

158	Civil Engineering	ABS-862
Study of SCC Performance with Addition of Nylon Fiber Munadrah (a*), Rita Irmawaty (b), Achmad Bakri Muhiddin (b) (a) Structure Program of Graduate School of Hasanuddin University, Gowa, Indonesia * ebhymunadrah[at]gmail.com (b) Civil Department of Hasanuddin University, Gowa, Indonesia Abstract Self Compacting Concrete (SCC) is a plastic concrete that is easy to flow because the weight itself fills all molds which are cooled concrete have properties to compose itself. Conventional concrete construction work that has large specific gravity and concrete compaction or vibration is necessary. The purpose of compaction itself is to minimize the air trapped in fresh concrete (fresh concrete) so that the concrete becomes homogeneous and the hole does not occur. To get concrete one of them is the addition of nylon fiber concrete as a substitute for aggregate concrete with Self Compacting Concrete. Nylon fiber is a material with polymer fibers that have fiber, film and plastic properties. The purpose of this study is to determine the compressive strength, tensile strength, flexural strength, and modulus of elasticity of fiber concrete using Nylon Fiber instead of aggregate. The method used is an experimental study with variations in the percentage of nylon volume to coarse aggregates of 0.5% and 1% Keywords: Self Compacting Concrete (SCC), Concrete Mechanical Behavior, nylon fiber Share Link | Plain Format | Corresponding Author (Munadrah -)

159	Civil Engineering	ABS-356
Comparative Analysis of Soft Soil Consolidation Time Due to Improvement Using Prefabricated Vertical Drain Athaya Zhafirah (a*), Sulwan Permana (a), Mohammad Daris (a), Dendi Yogaswara (a) (a) Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut 44151, Indonesia *athaya[at]sttgarut.ac.id Abstract Construction built on soft soils will cause several geotechnical problems, one of which is a consolidation settlement that lasts for a long time due to the low permeability of soft soils. This study aims to compare the time of soft soil consolidation settlement before and after soil improvement using Prefabricated Vertical Drain (PVD). PVD is a plastic sheet made from a composite, consisting of a drain core and filter jacket with a function to accelerate the process of pore water discharge to the ground surface by shortening the horizontal waterway. The method used using analysis, where the time of consolidation settlement reaches a degree of consolidation of 90%. The PVD pattern used is a triangle pattern and a rectangular pattern with a distance variation of 0.6 m; 0.7 m; 0.8 m; 0.9 m; 1.0 m; 1.1 m; and 1.2 m. The results obtained, based on the PVD pattern, the time of consolidation settlement is faster if using a triangle pattern compared to the rectangular pattern. Whereas, based on distance, the smaller the distance between PVDs, the faster the time of consolidation will decrease. Keywords: Geotechnical engineering; Soft soil; Consolidation settlement; Prefabricated vertical drain Share Link | Plain Format | Corresponding Author (Athaya Zhafirah)

160	Civil Engineering	ABS-1125
THE FLEXURAL CAPACITY OF BOX CULVERT RAILROAD TYPE 2000 x 2000 x 1000 ZAIN PATONGLOAN, (a) DR.Eng. Rita Irmawaty,ST,MT (b) Ir.H.Achmad Bakri Muhiddin,M.Sc,Ph.D (a) Structure Program of Graduate School of Hasanuddin University, Gowa, Indonesia (b) Civil Department of Hasanuddin University, Gowa, Indonesia Abstract Abstract The train is considered as transportation with special and main characteristics to transport passengers and goods in bulk. The Trans Sulawesi project, which began in 2016, is targeted to reach a length of 2000 km, from Makassar (South Sulawesi) to Manado (North Sulawesi). Currently development which while being worked on is a section from Makassar to Pare-pare. The purpose of this research is to analyze the flexural capacity due to axle loads and crack patterns that occur. The method of research is the analysis method. Box culvert with dimensions of 2000 x 2000 x 1000 with a thickness of 25 cm that will be used in this research. Reinforcement that will be used are Ø13, Ø16 and Ø19, concrete quality fC = 35 MPa, planned design load P design is 7.68 tons = 78.6 KN and crushed load P (ult) is 22.72 tons - 227.2 KN. Maximum load carried is 420 KN, where this load is higher than the destroyed load. The conclusion is that the dimensions of 2000 x 2000 x 1000 can carry loads that pass above the culvert box. Keywords: Box Culvert Of Railroad Share Link | Plain Format | Corresponding Author (Zain Patongloan)

161	Civil Engineering	ABS-621
Review of Transparency Principle for Public Procurement on Construction Project in Indonesia Dewi Yustiarini(1*), Biemo W. Soemardi(2), Krishna S. Pribadi(3) UPI and ITB Abstract Procurement is the main process in construction projects that creates and manages contact between actors and compliance of their respective tasks. The procurement process starts from identifying needs to handing over the work. The principles of procurement of some literature include many complementary principles. But from some of the literature, the principle of transparency is always written. Implementation of the principle of transparency in Indonesia, one of which is by electing consultants and providers of construction work services electronically known as LPSE. This paper presents a comprehensive review of the principles of transparency in public procurement practices that will be analysed by selecting three segments, namely: the principle of transparency of procurement, electronic systems, and the selection of construction service providers. The results of this study are expected to be a reference material for rectifying wrong conclusions from some practitioners in the field. That the electronic system that can be accessed by the public at this time does not facilitate transparency in the overall procurement process. Keywords: transparency, construction, public procurement Share Link | Plain Format | Corresponding Author (Dewi Yustiarini)

162	Civil Engineering	ABS-624
Review of Public Procurement Process for Construction Project Based On Indonesian Presidential Regulation Number 16 Year 2018 Dewi Yustiarini(1*), Biemo W. Soemardi(2), Krishna S. Pribadi(3) Universitas Pendidikan Indonesia dan Intitut Teknologi Bandung Abstract Procurement is the main process in construction projects that creates and manages contact between actors and compliance of their respective tasks. The procurement process starts from identifying needs to handing over the work. Broadly speaking, the procurement process in Presidential Regulation No. 16 of 2018 is divided into the Planning phase, the Preparation stage, and the Implementation stage. But from tracing legislation in this case the regulation of LKPP, the procurement process through the provider consists of the stages of procurement planning, procurement preparation, selection preparation, selection process, contract implementation, and handover. The absence of a special law on public procurement in the field of construction service, has made the general procurement process not yet found. Even for the definition of Procurement itself, many parties equate it with an electronic tender. Under the Presidential Regulation, the Tender is part of the public procurement stage. This paper presents a comprehensive review of the procurement process in Indonesia and abroad that will be analysed by selecting two segments namely public procurement in general and public procurement through providers. The results of the study are expected to be a reference material for an overview of the public procurement process in Indonesia. Keywords: Public Procurement, Process, Construction Share Link | Plain Format | Corresponding Author (Dewi Yustiarini)

163	Civil Engineering	ABS-625
Study of Fly Ash Plastic (FAPET) as an alternative for lightweight aggregate in concrete K A Sambowo, F Apriyanto, Prihantono, R A Sumarsono State University of Jakarta Abstract Plastic waste is identified as non-biodegradable material that is harmful to the environment. Polyethylene terephthalate (PET) is one of the most well-known types of plastic that is used for food packaging. This can usually found in huge amounts as plastic waste. This paper takes advantage of PET plastic waste from the water drinking cup to be blended with fly ash to produce a lightweight aggregate called FAPET. All properties of FAPET were significantly better than pumice which is used as the control sample during the experiment, i.e. 0.5% for water absorption is 0.5% better, 0.5% for compressive strength, and 0.5% for abrasion value of 28.55% respectively. FAPET was derived from the double blending process of PET with fly ash in which the composition of PET and fly ash was 1:3. The experiment was conducted partially until the full replacement of pumice as a lightweight aggregate with FAPET to establish waste-based lightweight concrete. The modulus of elasticity and compressive strength resulted from 100% replacement using FAPET were 31,706 MPa and 23,64 MPa that is equal to a normal concrete strength. The utilization of FAPET is concluded to be successful as an alternative lightweight aggregate for structural use of lightweight concrete. Keywords: Fly Ash, PET Plastic, FAPET, lightweight aggregate, lightweight concrete Share Link | Plain Format | Corresponding Author (Kusno Adi Sambowo)

164	Civil Engineering	ABS-115
Determination of agricultural crops alternative on karst springs irrigation land based on irrigation water quality in Tuban Regency, East Java, Indonesia H Siswoyo, M Bisri, M Taufiq, V Pranantya Department of Water Resources Engineering, Faculty of Engineering, Brawijaya University Jl. M.T. Haryono 167, Malang, 65145, East Java, Indonesia Abstract The purpose of this study was to determine alternative high economic-value non-paddy agricultural crops that can be cultivated on agricultural land with irrigation water sources originating from karst springs. This research was conducted on 10 karst springs that are used as a source of irrigation water to irrigate agricultural land in Tuban Regency. Determination of alternative of types of non-paddy agricultural crops is done by integrating the irrigation water quality index model, criteria of relative tolerance of crops to salt, and criteria of non-paddy agricultural crops that have high economic value. Irrigation water quality index values from karst springs in the study area ranged from 73.99 to 76.23, which is in the range of 70–85 with a low water use restriction. Based on the irrigation water quality index values it can be recommended that water supply from karst springs is not carried out on salt sensitive crops. The alternative of types of non-paddy agricultural crops that can be recommended for planting on agricultural land in the study area are corn (Zea mays), soybeans (Glycine max), peanuts (Arachis hypogaea), sweet potatoes (Ipomoea batatas), tomatoes (Lycopersicon lycopersicum), eggplants (Solanum melongena), cucumbers (Cucumis sativus), spinach (Spinacia oleracea), melons (Cucumis melo), and watermelons (Citrullus lanatus). Keywords: agricultural crops, irrigation, karst springs, water quality Share Link | Plain Format | Corresponding Author (Hari Siswoyo)

165	Civil Engineering	ABS-628
Waste-based Fiber Concrete Properties using Supplementary Material of Bead Wire Scrap K A Sambowo, A B Suherman, Prihantono, R A Sumarsono Department of Civil Engineering, Engineering Faculty, State University of Jakarta Abstract Fiber concrete has gained its popularity for the past few years to improve the tensile capacity of concrete by the presence of natural or synthetic fiber as the supplement. In contrast, synthetic fibers are mostly derives from a high energy consumption process so that fiber concrete is still considered as an un-eco-friendly material. Thus, finding alternative materials for fiber is still a widely open area, such as by utilizing wire-based waste like bead wire scrap from the used tires. The purpose of this paper is to examine the fiber concrete properties of waste-based fiber concrete using up to 2% of bead wire scrap supplementary to the weight of cement. The physical and mechanical characteristics of bead wire scrap are eligible for the fiber in concrete in which tensile strength is up to 615 MPa. Split tensile test of the fiber concrete result is best at 0.5% of bead wire scrap supplementary with the split tensile capacity of 2.57 MPa. However, our investigation of the capacity of the fiber concrete shows a fluctuation of its supplementary variation percentage. This could be due to the non-uniformity of the fiber distribution in the concrete during mixing and molding processes. Keywords: Waste-based Fiber Concrete, Bead Wire Scrap, Supplementary Material Share Link | Plain Format | Corresponding Author (Kusno Adi Sambowo)

166	Civil Engineering	ABS-632
Comparison Analysis of Vehicle Operating Cost (VOC) Between New Toll Road Plan With Existing Road Muhammad Shofwan Donny Cahyono(a*), Leonardus Setia Budi Wibowo(a) a) Civil Engineering Study Program, Faculty of Engineering, Widya Kartika University Surabaya, Indonesia *shofwandonny[at]widyakartika.ac.id Abstract Transportation planning, as the design of infrastructure needs and transportation service for the existence of an area, is an important factor for growth and sustainability of a region. Nowadays, the increase of vehicle number is not followed by the extending of infrastructure road, resulting in traffic jam in certain roads. The congestion occurring causes the increase of travel time so it will interfere the productivity of various sectors. The purpose of this study was to determine the vehicle operating costs (VOC) by using the Pacific Consultant International (PCI) method. This PCI method consisted of fixed costs and variable costs, in which the results were added to find out the total vehicle operating costs (VOC) per vehicle and vehicle operating costs (VOC) per day. The results showed that the vehicle operating costs (VOC) via the toll road were smaller than the costs of the existing road. Operational costs of vehicles (VOC) of passenger cars, buses, and trucks that passed the existing road in the morning peak hours were IDR 10120.88, IDR 23803.97, and IDR 25366.62 sequentially, whereas if those groups of vehicles passing via the toll road, showed the price respectively IDR 7107.93, IDR 19434.12 and IDR 22180.15. Keywords: Vehicle operating costs; Toll road; Existing road Share Link | Plain Format | Corresponding Author (Muhammad Shofwan Donny Cahyono)

167	Civil Engineering	ABS-634
Changes in spatial patterns and the need for socio-economic facilities for settlements in Garut city due to reactivation of the railroad tracks Adi Susetyaningsih, Attaya Zhafirah, Cahyana, Ida Farida, Nanang sttg Abstract Train is one of the modes of mass transportation that is more effective in dealing with congestion because of its ability to carry passengers in large numbers and a relatively shorter travel time compared to other public land transportation. Apart from its economic benefits, the activation of the railroad track which has long been dead, has caused various impacts of the loss of social and economic facilities that cannot be ignored. This study evaluates the impact of reactivation of the Garut railway line on 1) changes in the pattern of spatial settlements along the railway line, 2) identifies the need for lost socioeconomic facilities on the railroad track. The focus of the study was conducted in the District of Garut Kota because most of the land owned by PT KAI in the region had experienced the conversion of land use functions. The data collection method was carried out by survey and interview of affected respondents along the railroad tracks. Reactivation of the railroad track causes changes in the pattern of spatial settlements. Empty land along the rail lines becomes a magnet for the growth of new settlements, which is then followed by various socio-economic infrastructure. There is a constructive relationship between the community and space. Land acquisition along the railroad reactivation track in the Garut sub-district of the city has led to the loss of settlements, interrupted access to neighborhood roads, markets, community meetinghouses, and the Posyandu basic health service building. Not all lost socioeconomic facilities can be rebuilt because of constraints in the provision of land. Keywords: Keywords: settlement spatial patterns, socio-economic facilities, train reactivation Share Link | Plain Format | Corresponding Author (adi susetyaningsih)

168	Civil Engineering	ABS-381
Road Engineering with Traffic Operating Facilities at Black Spot for Motorcycle on The Road Ida Farida (a*), Astia Agustiana Kusnawan (b), Subhan Mulyana (c), Roestaman (d), Athaya Zhafirah (e) Civil Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1, Garut 44151, Indonsia *idafarida[at]sttgarut.ac.id Abstract Transportation is inseparable from the needs of roads and vehicles. Motor vehicle users and road accidents are increasing, one of which is because it has ignored by road facilities that support at black spot. The research objective is to identify a black spot for motorcycle with Unmanned Aerial Vehicle and determine the completeness of road facilities in traffic operations. Research methods include handling black spot locations based on the number of accidents using the Accident Equivalent Number method and the weighting method. The results can consist of five blackspots in Ngamplang, Ngamplangsari, Penclut, Cimaragas, and Sawahlega. Accident handling at operational facilities traffic to install signs and markers that refer to the speed and visibility of vehicle stops. Keywords: black spot, facilities traffic, motorcycle Share Link | Plain Format | Corresponding Author (Ida Farida)

169	Civil Engineering	ABS-382
Influence of Road Traffic Vehicle Volume with Damage and Road Safety Ida Farida (a*), Hilmi Dliyaul Awliya (b), Ismi Purnamasari (c), Nanang (d), Ganjar Jojon Johari(e) Civil Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1, Garut 44151, Indonsia *idafarida[at]sttgarut.ac.id Abstract The increase in population and vehicles on the road will be accompanied by an increase in transportation needs, so traffic density cannot be avoided. It generally occurs on the national road lane, which is a connecting road between the provincial capital with the national strategic roads. Traffic density has the potential to be congestion, road damage, and the occurrence of traffic accidents. This study aims to determine the effect of vehicle volume on the level of damage and road safety in one of the national roads in West Java. Data from the Road Planning and Supervision, Police Sector, and field survey agencies. The methods used include the Bina Marga Method to determine the number of road damage, the RCI Method and IRI to assess the value of road conditions, and to determine the influence between variables, with road safety inspection referring to the roadworthiness test for evaluating the feasibility of road functions. The study found that the impact of vehicle volume on road traffic damage and accidents was categorized insignificant. The dominant factor in traffic accidents that occur caused by carelessness and disorderly driving. Roads in the category of roads are still eligible and recommended for regular maintenance. Keywords: Traffic accident, road, damage, vehicle volume Share Link | Plain Format | Corresponding Author (Ida Farida)

170	Civil Engineering	ABS-129
Dominant Factors from the Positive Impact of Competency Certificate Ownership I Widiasanti 1*, Anisah2 , H Darussyafa2 , Lenggogeni1 , R Saleh2, H Hermawan3 , and T Mulyono4 1 Program Studi Teknik Sipil, Fakultas Teknik, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia 2 Program Studi Pendidikan Teknik Bangunan, Fakultas Teknik, Universitas Negeri Jakarta, Jalan Rawamangun Muka, Jakarta 13220, Indonesia 3 Fakultas Komunikasi Universitas Prof. Dr. Moestopo (Beragama), Jalan Hang Lekir I 8, Gelora, Tanah Abang, Jakarta 10270, Indonesia, Indonesia 4 Program Studi Transportasi, Fakultas Teknik, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia *irika[at]unj.ac.id Abstract This study aims to determine the perception of skilled construction workers in the artisan field regarding the positive impact felt after having a work competency certificate. Based on data, there are a number of skilled construction workers in the artisan who have a work competency certificate which is still very minimal. Even though work competency certificates can have a positive impact on construction workers who have them. In this study carried out with quantitative methods by analyzing the results of perceptions of respondents. This research was conducted at a highrise building project in the city of South Jakarta, namely the Cithaland Tower project, Alamanda Tower, Dharmawangsa Office Tower. The total number of respondents from the 3 projects to be studied is 44 people. The results of this study indicate that respondents feel that the ownership of a work competency certificate has several positive impacts in working in the construction services sector. In this study respondents perceptions were measured through four indicators, namely work motivation, work productivity, work ability and competitiveness. Of the four indicators there is one of the most dominant indicators according to respondents, namely the indicator of Work Motivation with a percentage of 26.44%. Keywords: competency certification, skilled labour Share Link | Plain Format | Corresponding Author (Irika Widiasanti)

171	Civil Engineering	ABS-386
Effect of Addition of Palm Shell Ash and Asphalt Emulsion For Bearing Capacity on Clay Soils Morin Morissa Lumbantoruan (a*), Syahril (b) (a) Applied Civil Engineering Master Program, Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Ds.Ciwaruga, Bandung 40559, Indonesia. *morin.rissa[at]yahoo.com (b)Civil Engineering Department, Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Ds.Ciwaruga, Bandung 40559, Indonesia. Abstract Soil stabilization is a method to improve soil properties either by mechanical means or by adding another material to the soil with the purpose is to increase the strength or bearing capacity of the subgrade to the construction built on it. Subgrade with low bearing capacity can cause damage or collapse of construction above it. In this study, the type of stabilized soil is clay. Repairing this subgrade by adding addictive material to the clay using palm shell ash and asphalt emulsion with 8% of palm shell ash content as a dependent variable and emulsion asphalt of 3%, 6%, 9%, and 12% as an independent variable. The purpose of this step is to get the optimum mixture content as a stabilizing agent. Based on testing, the optimum mixture content is 8% palm shell ash+9% emulsion asphalt. The addition of this addictive material can reduce water content by 9.03%, plastic index by 74.47%, and shrinkage by 56.38% during the 14 days curing period, and increase the bearing capacity of subgrade through CBR testing of unsoaked and soaked respectively each of 114.15% during the curing period of 14 days and 211.1% during soaking of 14 days. Keywords: Stabilization; Palm Shell Ash; Asphalt Emulsion Share Link | Plain Format | Corresponding Author (Morin Morissa Lumbantoruan)

172	Civil Engineering	ABS-131
A Dominant Factor of Human Resources Performance on Construction Management in Supervising High Rise Building Construction Phase Fitri Suryani(a), Irika Widiasanti (b*), Didik Satrio (c), Andika Yunianto(a), Tri Mulyono(b), dan Yusrina Luthfiana(b) (a) Faculty of Engineering, Universitas Persada Indonesia Y.A.I Jakarta Jl. Pangeran Diponegoro No.74, Jakarta 10430, Indonesia (b) Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia (c) Faculty of Postgraduate, National Institute of Science and Technology Jalan Jalan Moh Kahfi II, Srengseng Sawah, Jagakarsa Rawamangun Muka, Jakarta 12630, Indonesia *irika[at]unj.ac.id Abstract The percentage of human resources (HR) in construction that has a certificate of skilled labor is moderately low, which is less than 6% of the total human resources in the construction sector in Indonesia. The certificate can describe the ability, expertise, and competence of the certificate owner. Human resouces’ quality have an influence on project productivity so that project success can be achieved. Contruction Management has an important role as an HR manager who will work on the project including HR who works as a supervisor of construction activites on the project. The purpose of this study is to determine the dominant factors affecting the performance quality of the Management Construction HR on supervising high rise building construction. This study uses quantitative methods with factor analysis. Collected data are primary data from Management Construction HR which collected from questionnaire. The results from this study are five factors that affect the quality of HR performance. Based on the five factors, the most important factor is technical skills factor. Keywords: human resource; project management; performance Share Link | Plain Format | Corresponding Author (Irika Widiasanti)

173	Civil Engineering	ABS-387
THE EFFECT OF USING OF VULANIC ASH AND TAILING AS STABILIZATION MATERIALS IN SOIL CLAY ON CBR VALUE Achmad Abrar Haziri (a*), Syahril (b) (a) Master of Applied Infrastructure Engineering, Politeknik Negeri Bandung. Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40012. Indonesia. (b) Departement of Civil Engineering, Politeknik Negeri Bandung. Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40012. Indonesia *ahmad.abrar.mtri18[at]polban.ac.id Abstract Soil is the basic element for the structure or construction, which will be a building construction or road construction, often causes problems if it has bad properties. Two main problems in soft soils are large subsidence and small carrying capacity. One of the soil improvement efforts that will be investigated is soil stabilization using waste materials, namely Volcanic Ash and Tailings. Soil stabilization is the process of mixing soil with certain materials to improve the technical properties of the soil and is an attempt to change or improve the technical properties of the soil to meet certain technical requirements which of the stabilization can increase the carrying capacity of the soil. This research is an experimental study to determine the carrying capacity of soft clay soil stability, using volcanic ash (AGV) deposits and tailing (TL) instead of cement. The research variables are volcanic ash deposits and tailings which varied from AGV (8%) and TL (4%, 5%, 6%) and curing time for 3 days, 7 days and 14 days. The purpose of this study was to find out and to compare the CBR values of clay before and after stabilization with the addition of volcanic ash and tailing Keywords: Stabilization, Vulcanic Ash, Tailings Share Link | Plain Format | Corresponding Author (Achmad Abrar Haziri)

174	Civil Engineering	ABS-388
Effects of Subgrade Stabilized with Calcite and Asphalt Emulsion Pagit Juni Sartika Br Tarigan (a*), Syahril (b) (a) Master of Applied Infrastructure Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40559, Indonesia (b) Departement of Civil Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40559, Indonesia Abstract Improvement of the soft soil as a subgrade has done a lot and one of them is soil stabilization. This soil stabilization can be done by mixing other materials so that it can change the physical and mechanical properties of the soft soil for being better. The type of the soil is expansive clay. In this experiment, the stabilization materials that chosen are calcite and asphalt emulsion. The variation of the soft soil mixture that will be stabilized is using calcite of 6%, 9%, 12%, 15%, 18%, and asphalt emulsion of 8% as a fixed variable. The results of plasticity index of the stabilization soil decreased by 19%. The water content obtained from soil stabilization also decreases with values between 22% to 30%. Then, CBR testing was done with the variation time of 0, 3, 7, 14 days for unsoaked condition and 4 days for soaked condition. The CBR value of the stabilization increased 46% for unsoaked and 32% for soaked. Based on the results of this experiments, a mixture of calcite and asphalt emulsion can be used for an expansive clay soil as a subgrade of a pavement structures. Keywords: Stabilization, Calcite, Asphalt Emulsion Share Link | Plain Format | Corresponding Author (PAGIT JUNI SARTIKA BR TARIGAN)

175	Civil Engineering	ABS-900
Numerical Analysis of Mechanical Behavior of Soft Soil Settlements With Vacuum Consolidation Method Norma Puspita(a*)(b), Anis Sagaff (b), Wiwik Rahayu (c) (a) Department of Civil Engineering, Faculty of Engineering, Indo Global Mandiri University, Jl. Jend. Sudirman No. 629 Palembang * norma.puspita[at]uigm.ac.id (b) Engineering Science of Doctoral Program, Faculty of Engineering, Sriwijaya University (c) Department of Civil Engineering, Faculty of Engineering, Indonesia University Abstract According to topography of Palembang City is lied on lowland areas, with very deep soft soils that have high compressibility behavior. It will greatly affect to stability of construction. In the last decades, along science and technology development, many scientists had been developing methods and tools to improve the mechanical behavior of soft soil, be it chemically or mechanically improvement method. One of the mechanically improvement methods is Vacuum Consolidation Method (VCM), which is a development of prefabricated vertical drains (PVD). The aims of this study are to analysis numerically the correlation of characteristics and mechanical behavior of soil to settlements with application of VCM. The analysis of study is based on soil investigation data and field observation data of daily implementation VCM. The result of study is showed that duration and scale settlement are greatly affected by characteristics and mechanical behavior of soil, such as the depth, type, void ratio, saturation degree, plasticity, aside from PVD installation pattern and suction pressure of vacuum. Keywords: Soft Soil, Settlement, VCM, Numerical Analysis Share Link | Plain Format | Corresponding Author (Norma Puspita)

176	Civil Engineering	ABS-391
Increased durability of concrete toward elevated temperatures due to fire with ground granulated blast furnace slag A H S Harahap (a*), Sumargo (b), Nursyafril (a) a) Civil Engineering, Politeknik Negeri Bandung, Bandung 40012, Indonesia *ahmadharahap298[at]ymail.com b) Civil Engineering, Universitas Jenderal Achmad Yani, Cimahi, Jawa Barat, Indonesia Abstract This paper describes experimental results that focus on the effects of elevated temperature exposure on GGBFS concrete. GGBFS is a byproduct of steel factory PT Krakatau Steel. It is suitable for geopolymer cement as a substitute for cement in concrete. Normal concrete and GGBFS concrete beams (150×150×750mm) and cylindrical (150×300mm) concrete specimens with 40% GGBFS content as a substitute of cement weight was burned for two hours, which the first beam was burned at 600°C, second beam at 700°C and third beam at 800°C. After cooling to room temperature, cylindrical specimens and beams were tested. Compressive strength, loss mass, modulus of elasticity, crack developments and flexural strength were examined and compared. The results show that concrete strength decreases with increasing temperature, where this occurs in both normal and GGBFS concrete. However, GGBFS concrete is superior in initial strength and resistance to elevated temperature compared to normal concrete, because GGBFS increased the durability of concrete. High temperature exposure causes compressive strength of normal concrete decreased extremely up to 69,08%, compared to GGBFS concrete only 46,21%. Flexural strength decreased to 30,37% when the temperature rises from 600°C to 700°C. Furthermore, it decreased significantly to 50,82% when the temperature reached 800°C. Keywords: Concrete; Durability; GGBFS; Temperatures Share Link | Plain Format | Corresponding Author (Ahmad Hamas Sorimatua Harahap)

177	Civil Engineering	ABS-399
The Influence Of Concrete Compressive Strength On Bonding Of Concrete Bundled Bars E Walujodjati (a*), JA Tjondro (b), I Farida (a), S Permana (a) a) Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu 1, Garut, Indonesia * eko.walujodjati[at]sttgarut.ac.id b) Department of Civil Engineering, Parahyangan Catholic University, Bandung, Jl. Ciumbuleuit, Bandung, Indonesia Abstract Concrete has high compressive strength, and low tensile resistance. Placement of reinforcing steel in the tensile area is able to withstand the tensile forces that arise. One of the things that causes reinforcement and concrete to work together is bonding. Where the perfect attachment between the concrete and reinforcement produces a strain on the reinforcement is the same as the strain on the concrete around it. Reinforcement bundles as an alternative solution to the limitations of the cross-sectional dimensions are feasible to be developed. Research on the use of reinforcement bundles has not been done much. Experimental studies are needed to see the ability of the reinforcement bundle associated with the bonding stress produced by several parameters in the design of structural elements. Concrete strength as an important parameter in reinforced concrete is related to the use of reinforcement bundles needs to be examined. The design concrete strength 25 MPa, 30 MPa and 40 MPa with single bar and 2 bars steel bundles. Through the design mix that is carried out produces 27 MPa concrete compressive strength, 36 MPa and 39 MPa. The reinforcement steel tensile test produces 462 MPa yielding stress and 628 MPa ultimate stress. With the pull out test of the concrete cylindrical specimen diameter of 150 mm x 200 mm produces a variety of bonding stress values. Variations in the compressive strength of concrete in the reinforcement bundle did not appear to significantly influence the value of bonding stress. Only the visible increase in bonding stress increases with the strength of the concrete and the number of bars in the bundle. Keywords: Bundled Bars; Concrete Compressive Strength; Pull Out Test Share Link | Plain Format | Corresponding Author (Eko Walujodjati)

178	Civil Engineering	ABS-400
Study of Flexural Strength On Concrete Bundled Bars Beams E Walujodjati (a*), JA Tjondro (b), S Permana (a), GJ Johari (a) a) Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu 1, Garut, Indonesia *eko.walujodjati[at]sttgarut.ac.id b) Department of Civil Engineering, Parahyangan Catholic University, Bandung, Jl. Ciumbuleuit, Bandung, Indonesia Abstract Reinforced concrete beams as structural elements that are often found, are elements that are quite large in their role in bearing loads, especially bending loads. In the design of reinforced concrete beams, the number of reinforcement can be increased or reduced which will cause tensile collapse, compressive collapse and balanced collapse. Judging from the function of the reinforcement as a bearer of tensile force, it is possible if the reinforced concrete beams are made with a different number and area of reinforcement. Reinforcement bundles are used if there is a cross-sectional dimension limitation without the distance between the reinforcement conditions being met. Beams with 2 reinforcement bundles are made to see the flexural capacity obtained. With the dimensions of the beam 150 mm x 200 mm x 1050 mm, a bundle of 2 reinforcement with a diameter of 10 mm is mounted on the tensile section of reinforced concrete beams. With a four-point bending test a nominal bending moment is obtained. Single-section square cross section analysis with cross-sectional area obtained using the equivalent diameter of the reinforcement bundle compared to the results of the flexural test. The bending moment capacity between experiment and analysis obtained the appropriate results. But the collapse at the resulting peak load is not the expected bending collapse. It is estimated that the value of the bending capacity of the two reinforcement bundles is still large so that the bending collapse has not been reached. Keywords: Bending Moments; Flexural Collapse; Two Bars on Bundle Bars Share Link | Plain Format | Corresponding Author (Eko Walujodjati)

179	Civil Engineering	ABS-913
FLEXURAL STRENGTHENING OF REINFORCED CONCRETE BEAM WITH CFRP Mardiana Oesman(a), Antonius Siswanto(a), Aridi Wijaya Pradana(a) a) Civil Engineering Department, Bandung State Polytechnic Jl. Gegerkalong Hilir, Ciwaruga, Kec. Parongpong, Kabupaten Bandung Barat, Jawa Barat 40559, Indonesia. Abstract The behavior of plain reinforced concrete beam and reinforced concrete beams strengthened with externally bonded CFRP sheet were investigated experimentally. The study is to investigate the influence of CFRP sheet number on the mechanical behavior of concrete beam under flexural loading test. The test was conducted using four beams to investigate with different CFRP sheet layer number. The three CFRP strengthened concrete beams with same thickness and length but different layer number of CFRP sheet. Before reinforced concrete beams strengthened with externally bonded CFRP sheet, the beam have tested up to the occurrence of the steel yield; then the beams were repaired by patching the cracks. The results indicate that, the reinforced concrete beams strengthened with externally bonded CFRP sheet were increased loading capacity, but decreased deflection. The beam strengthened with 2 layers of CFRP reached the maximum loading capacity, but in the minimum deflection. Moreover, the interfacial debonding easily propagates along the interfacial concrete layer at a load that was below the estimated maximum strength of the CFRP-strengthened structure. The maximum strength of the CFRP sheet in the experiment was not achieved due to the adhesive layer between the concrete and CFRP sheet was not strong enough. Keywords: Strengthening, failured mode, CFRP Share Link | Plain Format | Corresponding Author (Aridi Wijaya Pradana)

180	Civil Engineering	ABS-658
PERFORMANCE EVALUATION OF INTERSECTION IN DENPASAR CITY (CASE STUDY: FOUR WAY INSTERSECTION HAYAM WURUK ST – TEROMPONG ST – PANDU ST ) N M W Pratiwi, D A N Sriastuti, A A G Sumanjaya Instructor Departement Civil Engineering, Faculty of Technology and Planning, Warmadewa University, Indonesia Corresponding author: deee.widya[at]gmail.com Abstract Four way instersection Hayam Wuruk St – Terompong St – Pandu St is one of the intersections found on the Hayam Wuruk section. Where Hayam Wuruk Street has land use as an educational center, and Four ways instersection Jalan Hayam Wuruk - Terompong St – Pandu St is a meeting point for access to Warmadewa University which is located on Terompong St with the main road, namely Hayam Wuruk St, and residential area roads, namely Pandu St. Four ways instersection Jalan Hayam Wuruk - Terompong St – Pandu St is an unsignalized intersection that has a fairly high intersection conflict, with the traffic conditions on Hayam Wuruk St having high road performance and side obstacles. To find out the performance of the Intersection of Four ways instersection Jalan Hayam Wuruk - Terompong St – Pandu St, an evaluation of the performance of the intersection with the method approach was used to evaluate the performance of the intersection based on the 1997 Indonesian Road Capacity Manual (MKJI), so that a degree of saturation (DS) was obtained. Keywords: performance, four way intersection, traffic Share Link | Plain Format | Corresponding Author (Ni Made Widya Pratiwi)

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