Indonesia Conference Directory

Corresponding Author
Emil Adly

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Road damage occurred in Bantul Regency today is a very complex problem and it has led to the very significant losses particularly for the road users such as the long travel time, discomfort and even accident. Some factors of road damage might be related to the traffic load, puddle due to the poor drainage system, material, dynamic climate, implementation, and poor sub grade condition. This research aims to assess the road surface using the Pavement Condition Index (PCI) method by conducting a visual survey in field. PCI refers to the numerical index, whose values are in the range of 0 to 100. Value 0 shows the pavement in a much damaged condition and value 100 shows the perfect pavement. The location surveyed was the road section of Triwidadi along 4000 meters at Sta. 14 + 000 - Sta. 18 + 000. As found in the analysis conducted, the result of Pavement Conditional Index (PCI), it could be identified 13 types of damage and percentage values, including Aligator Cracking by 6.08%, Bumb and Sags by 6.98%, Corrugation by 0.90%, Depression by 5,86%, Edge cracking by 11.04%, Longitudinal Cracking by 22.07%, Patching and Utility Cut Patching by 13.06%, Polised Agregat by 18.02%, Potholes by 8.33%, Shoving by 0.23%, Slippage Cracking by 0.23%, Expand Upheaval by 0.23%, and Raveling by 6.98%. The total index was 34.75% which was included in the poor category with the handling time as revealed by PCI Decision Matrix is immediately reconstructed.

Keywords
Pavement condition index, Road damage, Triwidadi road,

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/9Jxnd7w2DTQK

Corresponding Author
Willis Diana

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
An investigation of the effect on Portland cement-stabilized clay shale on the Atterberg limits and permeability characteristics are presented. Extensive research has shown that Portland cement has been used to improve and upgrade the problematic soil such as clay shale and found to be the most used and be successfully stabilized, but most studies in the field of Portland cement-stabilized soil have only focused on strength and durability improvement and has not fully provided information on the permeability characteristic. An objective of this study was to investigate the effect of Portland cement content on the plasticity and permeability of the clay shale. The percentage of Portland cement used ranged from 2% to 10% by weight of dry soil. A series of liquid limit, plastic limit, and permeability test were performed on the treated and untreated clay shale. A treated clay shale sample was cured for 7 days, a constant head permeability method (method A) of the ASTM D 5084 was used to identify the coefficient of permeability. The result shows that both the liquid limits and plastic limits decrease with increased Portland cement content, hence the plastisity index of the soil-PC mixing decrease. The permeability coefficient reaches the highest value at the addition of 2% PC. The permeability coefficient of soil mixed with 2% of cement increased about 14 times greater than the untreated one. The permeability of 10% PC content is closed to untreated soil.

Keywords
Clay shale, stabilization, Portland cement, coefficient of permeability

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/eDvLxdfwRE9y

Corresponding Author
Restu Faizah

Institutions
(a)Ph.D Student of the Department of Civil and Environmental Engineering, Universitas Gadjah Mada, Indonesia.
(a) Staff member of the Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Indonesia.
(b) Professor of the Department of Civil and Environmental Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia.
(c) Staff member of the Department of Civil and Environmental Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia.
*restu.faizah[at]umy.ac.id

Abstract
The accumulation of used rubber tire wastes causes environmental problems because most of them cannot be recycled into new tires. Recently, this waste was promoted to be used as a material replacement in civil engineering. This study investigates the physical and mechanical properties of used rubber tires including ultimate tensile strength (&

Keywords
physical properties, mechanical properties, used rubber tire.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/y38wDfFqnPaM

Corresponding Author
Raihan Pasha Isheka

Institutions
(a) Master of Transportation System and Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada
*ishekaraihanpasha[at]gmail.com

(b) Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Abstract
The limited service area of public transport in Yogyakarta has caused the high number of private vehicles ownership and resulted in the classic transportation problems such as traffic congestion and air pollution. Due to these problems, the local government expanded the service area of public transport (i.e. Trans Jogja Bus) by adding several new routes and new fleets in 2017. However, after operating for one year, almost none of private vehicle users shifted to public transport and the number of private vehicles is keep increasing. This research aims to evaluate the services quality of Trans Jogja Bus in terms of bus routes focusing on in-vehicle travel time. This research also compares the factor of travel time and travel cost between Trans Jogja Bus and private vehicle. By this, an optimal performance of Trans Jogja Bus routes can be proposed and the number of private vehicle user shifting to Trans Jogja Bus can be increased.

Keywords
Utility, Mode choice, Trip Assignment

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/vbNKV7YyMZAF

Corresponding Author
Amanda Amanda

Institutions
1-Department of Civil Engineering, Politeknik Negeri Semarang, 50275, Semarang, Indonesia
2-Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Semarang, 50229, Semarang, Indonesia

Abstract
Water catchment area has function to accommodate the discharge of rain water infiltration in the area. The catchment area can performs as a controller of floods and drought in rainy and dry season, respectively. However, now a day many areas in the catchtment have been transformed into settlements and business area that caused reduction in the water catchment area. Suitability of water catchment areas can be identified by several criteria, include: land use area, slope area, rainfall intensity and soil type. In this study Magelang city of Central Java, Indonesia was used as study area. Magelang is a city which is located in a fertile agricultural area and one of the most densely populated regions on Central Java. A fuzzy set assessment has been used to determine 9 (nine) catchment area in the city, while the weighted of each criterion was analyzed using Analytic Hierarchy Process method. Potential of land suitability water store area is classified into four types, include very suitable, suitable, sufficient, and unsuitable areas. The results showed that two areas in the city catchment are categorized very suitable and suitable, while the seven other areas are considered sufficient and unsuitable area

Keywords
Fuzzy set method, soil water infiltration

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/qpDJxwEKLTdB

Corresponding Author
Surya Budi Lesmana

Institutions
a) Doctoral Programme Brawijaya University
*surya_lesmana[at]umy.ac.id
b) Brawijaya University

Abstract
Characteristics of the river basin formed by natural factors and non-natural factors that makes up an ecosystem. One of the characters that create the river basin of the physical element is morphometry that has three parameters such as linear aspect, relief aspect, and areal aspect. One method for explaining watershed priorities is by analysing the morphometric characteristics of the watershed based on various parameter values that are available from the calculation results. The results of calculating these parameters are then used as input data to make watershed priority predictions using deep learning. This study aims to analyze characteristics of the sub-watershed of Serayu Bogowonto river basin based on morphometry parameters using GIS and analysis for the watershed priority prediction using Deep Learning Method . The data utilized in this study is the river network data published by Bakosurtanal, and Digital Elevation Model (DEM) 30x30 ASTER GDEM then data analysis is using Geographic Information System (GIS) technique with ARC GIS 10.1. The prioritization based on morphometry analysis that is seven sub-watershed with high priority, four sub-watershed with medium priority, six sub-watershed with low priority. From the test results by measuring method using a deep learning based, it is known that deep learning algorithms yield accuracy values 80.00%, and class precision 74 %. The model is quite capable of producing satisfactory results and showed a good agreement between the predicted and observed data

Keywords
morphometry, deep learning, watershed, and river basin

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/pDXxEbWR4tNr

Corresponding Author
Anis Rahmawati

Institutions
Universitas Sebelas Maret;
School of Environment and Society, Tokyo Institute of Technology

Abstract
Composite is a mixture consisting of two or more constituent materials combined to produce a new material which has different characteristics from the individual materials. Composite materials made to produce a material with some properties that cannot be achieved by one of the constituents. This study focused on the utilization of wastes that were widely available in the environment that will make it more valuable as well as reduce the negative impact of waste deposit on the environment. The waste used was PE plastic, sawdust, and bagasse. The composite materials made by using simple technology that make it easily adapted by the community. This article discusses the results of experimental research related to the process of making composite materials between plastic, sawdust, and bagasse with various mixing methods to produce homogeneous material. The results of this study indicated that the mixing method which produces a proper mixture was by mixing the three constituents in one size, which was equal to 40 mesh, then pressed the mixture at 180oC for two hours.

Keywords
171

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/gu7y2vrKARJn

Corresponding Author
Ayu Rahmaniyah

Institutions
a) Students of Civil Engineering Department, Institut Teknologi Sepuluh Nopember (ITS), Sukolilo, Surabaya, 60111, Indonesia
*ayuramukti[at]gmail.com
b) Civil Engineering Department, Institut Teknologi Sepuluh Nopember (ITS), Sukolilo, Surabaya, 60111, Indonesia
c) Regional and Urban Planning Department, Institut Teknologi Sepuluh Nopember (ITS), Sukolilo, Surabaya, 60111, Indonesia

Abstract
The Pasuruan City Government has carried out activities to improve the quality of local road infrastructure in slum areas through the NUSP program, in order to realize the target city without slums in 2020. The sustainability of this local road function is strongly influenced by the sustainability of infrastructure assets management stages starting from the planning and construction, operation, and maintenance that conducted by the Utilization and Maintenance Groups (KPP). This study aims to determine the priority factors for the development of the sustainability of local road functions in slums with community-based management in Pasuruan City. Determination of priority factors is carried out by assessing the suitability of the sustainability factors through the assessment of questionnaires to the KPP, while the priority factor for the development of sustainability with the method of Borda analysis is based on the experts assessment. The results of this study indicate that in the operation stage the factors that need to be prioritized are the physical condition of the infrastructure, the management quality and the strengthening of institutional capacity. Whereas in the maintenance stage, it is necessary to prioritize the management quality, monitoring and evaluation, and coordination with the government.

Keywords
Local Road; Sustainability Functions; Priority Factors; Community Based Management

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/34mCgeDUXPE6

Corresponding Author
GASPAR YANUARIUS KANIO TUAMES

Institutions
a) Civil Engineering Departement Sepuluh Nopember Institute of Technology, Surabaya, Indonesia
*tuames_gaspar[at]yahoo.com
b) Civil Engineering Departement Sepuluh Nopember Institute of Technology, Surabaya, Indonesia

Abstract
In some cities in Indonesia the function of bus terminals for the convenience of movement from one mode to another mode or vehicle has not been effective. This case happening due to a lot of activities to carrying and drop off passengers at random places. This condition also happened at Oebobo bus terminal in Kupang City. In doing its activities the AKDP bus should stop inside the terminal, in fact most of AKDP buses stop outside the terminal (Oesapa T junction). This condition is still happening continuously until now. Revealed Preference technique is used to obtain primary data by distributing questionnaires and interviews directly to bus passengers both inside and outside terminal. From the analysis, it can be conclude that 77,65% bus passengers prefer to take a ride the bus outside than inside the terminal. The reason is because it is faster to wait for the bus outside the terminal. The proportion of passengers who choose a hitching location is influenced by the fare variable Rp. 20000 to reach hitching location, with a probability value 64.36% choosing the location to take a ride outside the Oebobo terminal (Oesapa T junction)

Keywords
Probability; Inside Terminal; Outside Terminal; Revealed Preference; Binary Logit

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/7egRJxQMuqjA

Corresponding Author
Amanda Amanda

Institutions
Taiwan Tech

Abstract
Slope stability analysis is one of the most critical and important topics in geotechnical engineering and thus various stability chart solutions have been developed to provide quick first assessments of slope stability. Motivated by that, this paper aims to adopt an artificial neural network with the extreme learning machine algorithm to develop a convenient and efficient tool in assessing fill slope stability. The neural network is trained using the solutions from the finite element upper and lower bound limit analysis methods. Because the conventional deterministic approach would ignore the uncertainties in soil properties, this study also uses the same technique to develop a tool that is capable of performing a reliability analysis of fill slope stability. Therefore, the tools developed in this study are capable of providing not only a quick first assessment of fill slope stability but also a reliability assessment of the slope. They can provide information for design, inspection or maintenance judgement.

Keywords
Decision-making; Limit analysis; Artificial neural network; Reliability

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/pjHZkChXTRqD

Corresponding Author
Thinzar Aye

Institutions
Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Abstract
The computation of pumping in groundwater storages still based on the general pumping formulas, although they have different condition of flows on the tip of casing. The groundwater drawdown due to pumping depends on well conditions, casing and geometric intake of the well. Based on these conditions, the aquifer test analysis has to use appropriated equations by using the intake shape factors. In 1930, Forchheimer was developed the first shape factors based on well conditions. In the subsequent years, researchers developed the shape factors equations with various well conditions. Some of the assumptions of shape factors are based on theoretical assumptions and have not been proved in the fields. These shape factors need to be proved and modify to get more reliable formulas by doing the experimental tests. The main goal of this research is to proof some of the existing shape factors related with appropiate well and aquifer conditions. The experiments under constant discharge will be carried out to get the correct formula of the shape factors. The benefit of these experimental tests is much simpler approach to the computation of groundwater in general.

Keywords
Pumping Test, Shape Factors

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/pQJnf7dwt2m6

Corresponding Author
Hakas Prayuda

Institutions
(a) Dept. Of Highway and Bridge, Ministry of Civil Work and Housing
(b) Departement of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta

Abstract
Quality assessment in existing road pavement was used to decide the right action for road preservation. In Indonesia, the quality was measured by functional using International Roughness Index (IRI) and visually using Pavement condition Index (PCI) to evaluate driver convenience. However road quality structurally can be assessed by measured the deflection and elasticity modulus by using light weight deflectometer (LWD) test. Four (4) segments of national arterial road in Kupang City, East Nusa Tenggara Province data were collected using Light weight defletometer test to find the deflection and elasticity modulus. The result of this test then compared to the result of International roughness index (IRI) test and Pavement condition index (PCI) on the same segments. The statistic result of mean, coefficient of varian and coefficient of correlation were obtained in this research

Keywords
Ravement, Quality Assessment, IRI, PCI

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/BpAmjMd8ueJc

Corresponding Author
Dyni Indar Karunianingrum

Institutions
a) Civil Engineering Department, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia
*indardyni92[at]gmail.com
b) Civil Engineering Department, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia

Abstract
In order to solve the development of railroad organise traffic in Indonesia, particularly in Cirebon-Cikampek Line, where its course is the busiest course in the north Java. It can influence the state of the track geometry and causes a reduction in rail quality. Thus, there is a need for maintenance of a condition and track quality of railroad tracks by using a measuring train that will produce the value of the condition of a track. Track quality is defined as a numerical value that represents the relative conditions of the track surface geometry. The results of the measuring train show the value of the related parameters which are then calculated as the standard deviation so that the overall quality results of the segment are usually called the Track Quality Index. Some geometric parameters that affect the good or bad of a path include profile, alignment, gauge, and cant. In this study an analysis of the Track Quality Index (TQI) was based on Indonesian railroad standards and with reference to several methods. From the analysis carried out, several other methods are used to compare the results of geometry track quality, including Poland J Synthetic Coefficient and Indian Railways. Because both methods have the same parameters so that this analysis can be done. In this case, the Difference Test statistical method is used to compare the differences in the results of the analysis of TQI values from the two methods that have been used.

Keywords
Track Quality Index (TQI); Geometry Parameters; Profile; Alignment; Cant

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/GbxPr76jCBg3

Corresponding Author
Hakas Prayuda

Institutions
(a) Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, 55183, Yogyakarta, Indonesia
Jl. Lingkar Selatan Tamantirto, Kasihan, Bantul, Yogyakarta, Indonesia, 55183
Email: pujiantoasat[at]umy.ac.id

Abstract
This study discusses the results of the rapid assessment of school buildings in Lombok after an earthquake occurs. The earthquake in August 2018 with a high enough intensity caused a lot of damage to the building. The entire area of Lombok Island was affected by the earthquake including the school building. This study assessed 15 school building buildings on the island of Lombok. School samples were taken randomly from several districts that were rocked by the earthquake. The results showed that school buildings in all locations were part of a Non-Engineered Building where there were no results of analysis of earthquake resistant buildings. Overall the condition of the building is categorized as being moderately damaged with non-structural components such as walls not having good connections with columns and beams. In addition, the structure and attributes of the roof are also damaged by a high percentage. In some buildings, it still does not follow good structural rules so that it is very dangerous for building users in the event of a large earthquake. Improvements using the retrofitting method are one of the most recommended ways to improve the performance of buildings that have mild and moderate damage.

Keywords
Building Assessment, Rapid Assessment, Earthquake, Lombok

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/fY7ueQqrwN9b

Corresponding Author
Okkie Putriani

Institutions
(1) Universitas Atma Jaya Yogyakarta
(2) Universitas Gadjah Mada
(3) Badan Pengkajian dan Penerapan Teknologi

Abstract
The development of big data processing based on transportation today is facilitating human life and growth in transportation needs. Mobility data products as the innovation of the intelligent mobility system include for infrastructure developers, transport planners, and shared mobility services. The method of this research is descriptive comparative by using a set of secondary data from existing reviews by comparing between data collection, data fusion, and processing, information dissemination, and the impact of traveler information. The data analysis includes visual analysis, scalability, machine learning, fault tolerance, knowledge discovery, and open source tools. This study presents the comparisons of the mobility analytics service providers (Teralytics, Streetlytics, Spatiowl, Near) and the recommendation for developing countries such as Indonesia. The characteristic of the population in developed countries is different from the people of developing countries. This condition is a differentiator of the pattern of movements to be translated so that a relevant analysis is needed. Mobile Network Big Data (MNBD) will be extended in providing real-time geo-mapping references.

Keywords
MNBD, mobility analysis, real-time, transportation

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Vg3aKz2wGuBD

Corresponding Author
Rizky Gusti Ranardi Putra

Institutions
Civil Engineering Program, Faculty of Civil Engineering and Planning, Indonesia Islamic University, Indonesia

Abstract
Malioboro Street is very well known as a tourism area connected with 0 KM Yogyakarta. Unfortunately, the traffic jam was often happened at the intersection of 0 KM. Since it is closed with the museum and the castle of Yogyakarta, there was a lot of pedestrian along the sidewalks. Hence, redesign of intersection and upgrade facilities of pedestrian were needed to improve the performance of the intersection. Using traffic and pedestrian volume, vehicle speed, and driving behavior as primary data and VISSIM as the modeling tools, the comparative performance of before and after the redesign was found. As a result, roundabout gave better performance than signalize intersection at 0 KM area. Additionally, the compatible crossing facility for the intersection was pelican crossing

Keywords
VISSIM, roundabout, sidewalk, crossing

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/NcW9m3x8n2eV

Corresponding Author
Tisara Sita

Institutions
1Civil and Environmental Engineering Department, Universitas Gadjah Mada, Jl. Grafika No. 2, Kampus UGM, Yogyakarta 55281, Indonesia
2Balai Besar Pelaksanaan Jalan Nasional VII, Directorate General of Highways, Ministry of Public Works and Housing, Jl. Murbei Barat I, Sumurboto, Semarang 50269, Indonesia

Abstract
The concept of road preservation in Indonesia is different from what has been applied in developed countries. The road preservation program according to Geiger (2005) consists of: (1) preventive maintenance; (2) minor/non-structural rehabilitation; and (3) other routine maintenance activities. However, major rehabilitation and reconstruction are included in the road preservation program in Indonesia. The road preservation program should only function to extend the service life and restore service functions, not to increase structural strength and capacity. The trend of road network treatment in Indonesia has been limited to reactive maintenance. Therefore, it tends to be late and improvement seems to recur at the same location. The Directorate General of Highways tries to change the old paradigm of reactive maintenance into the new paradigm of preventive maintenance through the more rational anticipation program, especially on the national roads. The Strategic Plan of the 2015-2019 Directorate General of Highways targets the preservation action along 41,017 km of the national road, and almost 90% of the national road funding is allocated for road preservation.

Keywords
maintenance, road preservation

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/8XUBmLqWVgHz

Corresponding Author
Dian M Setiawan

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
The 2nd Radin Inten Airport authorities renovate its airport starting from extending the runway and expanding the apron to its terminal building. The runway was extended from previously 2,500 m to 3,000 m. The development was due to the 2nd Radin Inten Airport being a full hajj embarkation and also due to an increase in airport activity every year. Therefore, the airport must be able to accommodate the Airbus A330-200 and A330-300 aircraft. The study was conducted by identifying the factors that influence the extension of the runway, evaluating the existing conditions of the 2nd Radin Inten Airport, and analyzing whether the runway at the 2nd Radin Inten Airport can accomodate the Airbus A330-200 and A330-300 using the provisions of ICAO (International Civil Aviation Organization) and the Director General of Civil Aviation Decree as a comparison. The results of the analysis showed that the influencing factors of the runway extension project are the activities of the airport itself. Based on data obtained from the 2nd Radin Inten Airport regarding the aircraft movements, passenger and cargo activities show a very high increase in its numbers. Furthermore, based on the condition of the existing airport, the 2nd Radin Inten Airport has met the applicable terms and conditions regarding the length, width, and slope of the runway. Besides, the 2nd Radin Inten Airport can serve Airbus A330-200 aircraft types with the required runway length of 2,753 m for such aircraft, while for A330 aircraft -300 cannot be serviced because it takes 3,100 m runway length in order to take off and landing safely.

Keywords
Aircraft, ICAO, the 2nd radin inten airports, runway extension, runway geometric

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/KnYUQJd29aq3

Corresponding Author
Taufiq Ilham Maulana

Institutions
1 Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, Brawijaya Street, Bantul, Yogyakarta, 55183, Indonesia
2 Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1 1 Hibarigaoka, Tempaku cho, Toyohashi 441 8580, Japan

Abstract
Periodical seismic safety evaluation for concrete buildings are necessary since they have been used for many years. Many approach can be used to evaluate them, one of them is pushover analysis. This analysis is performed by applying incremental loads then reading the displacement that happen, and comparing it to the response spectra demand to retrieve the performance point. Moreover, time-history records can be used to determine the displacement appear in structure. This study aims to perform 3D evaluation of reinforced concrete buildings. The selected building sample was one academic building in Yogyakarta, Indonesia which has 7 storeys. The analysis was performed using STERA 3D software. Three time-history records namely El Centro, Kobe, and Parkfield earthquakes were used to determine the displacement. These records were matched with response spectrum for Yogyakarta based on Indonesian earthquake resistant building code. The result shows the performance level of the building and the displacement resulted from inputting time history, compared to the displacement limit. It is hoped that from this study, related stakeholders can take necessary actions if needed and can be the reference for future further studies.

Keywords
Performance-based evaluation, pushover analysis, reinforced concrete building, time history, displacement

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/ExmVpA7LqF84

Corresponding Author
Oryza Lhara Sari

Institutions
(a) Institut Teknologi Sepuluh Nopember, Civil Engineering Department, Indonesia
(b) Institut Teknologi Sepuluh Nopember, Informatics Engineering Department, Indonesia

Abstract
Demolition needs special attention because the planning process is complex and has high risks (Yeheyis, Hewage, Alam, Eskicioglu, & Sadiq, 2013). In decision making, practitioners are faced with various conditions that influence the choice of demolition methods. This study aims to develop an optimal model for building demolition methods according to building characteristics. Identification of criteria is done by in-depth literature review and interviews with practitioners who have carried out demolition in Indonesia. The five criteria used in this study are health and safety, the presence of hazardous materials, the shape and size of the structure, requires structural engineers and workplace security. Furthermore, neurofuzzy is used to make the optimum demolition method decision. Fuzzy is used to integrate quantitative and qualitative variables while the Neural Network is to make decision making rules. For validation the model uses 13 building condition that have been demolished and use case studies. Simulation results show that the proposed model is able to make accurate decisions on the selection of demolition methods.

Keywords
demolition, demolition method, building, expert system, neurofuzzy

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/PUaA3x2KCb6e

Corresponding Author
Sodikin Sodikin

Institutions
Department of Civil Engineering, Veteran Bangun Nusantara University, Sukoharjo, Indonesia
Department of Civil and Environment Engineering, Gadjah Mada University, Yogyakarta, Indonesia
Department of Civil Engineering, Diponegoro University, Semarang, Indonesia

Abstract
Sensitivity and response for car followers is known from the speed and acceleration of the vehicle that follows the vehicle in front of it. The study was conducted using a test vehicle equipped with a hidden camera and operated with the IonRoad Augmented Driving Professional program. To determine the difference in sensitivity, vehicle test is installed with a warning sign that has been previously designed. The study was carried out vehicle test on the traffic flow on the arterial road and collector road with two conditions. First condition, the vehicle test was installed a warning sign on the back and the second condition the vehicle test uninstalled the warning sign. The relative speed and relative distance for each time unit between the vehicle test installed and uninstalled warning sign with the follower vehicle show a significant degree of difference. So it can be concluded that the installation of warning sign material on the back of the vehicle test affects the sensitivity of follower vehicle.

Keywords
sensitivity, car follower, moving warning signs

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/dn9pMDkUExyj

Corresponding Author
Muhammad Akmal Putera

Institutions
a) Departement of Civil and Environmental Engineering, Universitas Gadjah Mada, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia
*muhammad.akmal.putera[at]mail.ugm.com
**ahmad.rifai[at]ugm.ac.id, Corresponding Author.

Abstract
This research presents resulf of changes material of Municipal Solid Waste (MSW) embankments by decomposition process on engineering properties and shear strength parameters. It can be grouped by three cluster which has determined by ages of MSW. This research located on Piyungan MSW Embankment Yogyakarta. In situ test by standard penetration tests (SPT) and material sampling by test pit. The objective is to analyses the characterizations of engineering properties and shear strength parameter due to decomposition process. Engineering properties was determined by unit weight, water content, organic content and specific gravity. Also Shear strength parameter was determined by Triaxial test. Unit weight increased from the fresh embankment to the oldest embankment about 20.4%, also the results of shear strength parameter showed that cohesion value increased about 26.8% and the results of friction angles value increased about 9.8%. The due to decomposition process on MSW embankment which has the oldest embankment can be decomposed to improve engineering properties and shear strength parameter more than the fresh MSW embankment. Decomposition effects was indicated by organic content has been decreased about 35.6% from the fresh of MSW embankment to the oldest embankment. In accordance with the result of the laboratory analyses could be influence the slope stability analysis of waste embankment.

Keywords
Shear strength parameter; engineering properties; municipal solid waste; decomposition

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/RBwp7Y9WLbDX

Corresponding Author
MAHANON MUHAMMAD

Institutions
POLITEKNIK KOTA BHARU
KM 24, KOK LANAS,
16450 kETEREH, kELANTAN.

Abstract
An abstract is a brief summary of a research article, thesis, review on coagulant process in Water Treatment Plant consists primarily of inert materials and was categorized as chemical sludge. Aluminium sulphate used as a coagulant for majority of water treatment processes, therefore the sludge commonly referred to as alum sludge. The water quality parameters are based on the Water Quality Index (WQI) and Interim National Water Quality Standard for Malaysia (INWQS). The parameters are Biochemical Oxygen Demand, Chemical Oxygen Demand, Dissolved Oxygen, PH, Suspended Solids and Aluminium Sulphate. The objectives of this research such as, i) To monitor the coagulant process in the treatment plant, ii)To determine the water quality parameters of sewage sludge, and iii)To monitor the associated changes within the tank in relation to the application of EM.

Keywords
Sludge, Coagulant, Effective Microorganisms (EM), Aluminium sulphate

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/MwtvNzGDXmbC

Corresponding Author
Wahyu S. Winurseto

Institutions
1Civil and Environmental Engineering Department, Universitas Gadjah Mada, Jl. Grafika No. 2, Kampus UGM, Yogyakarta 55281, Indonesia
2Balai Besar Pelaksanaan Jalan Nasional VII, Directorate General of Highways, Ministry of Public Works and Housing, Jl. Murbei Barat I, Sumurboto, Semarang 50269, Indonesia

Abstract
As age increases, the pavement will increase in condition. If there is no preventive preservation, damage will occur. Cracks on flexible pavement is a condition that occurs because of the uneven distribution of stresses due to the load on the pavement. Causes damage to weaker material, which then develops into other parts. To overcome cracks, several types of treatments that can be done are: Crack Treatment; Surface treatment; Crack Repair; Pavement Rehabilitation. One type of treatment that is often used in preservation of flexible pavement cracks is pulp seals. The slurry seal is a stable mixture of fast, fast emulsion asphalt, fine aggregates with fast gradations, fillers, and air. The advantage of slurry seal is that it is more cost effective, increases the age of reinforcement, and can be applied quickly. The application of slurry seal in flexible pavement preservation can increase pavement age by up to 8 years. Some types of slurry seals are also superior types of treatment that can overcome damage in various types.

Keywords
flexible treatment preservation, slurry seal

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/jFcgU27Kxhyn

Corresponding Author
Norseta Ajie Saputra

Institutions
a) Muhammadiyah University Of Palangkaraya jalan RTA. Milono Km. 1,5,Palangka Raya 73111, Indonesia, norseta.ajie[at]gmail.com
b) Muhammadiyah University Of Palangkaraya jalan RTA. Milono Km. 1,5,Palangka Raya 73111, Indonesia, magfira.a90[at]yahoo.com

Abstract
Soil is an important element in the base structure of highways. In certain types of soil has low capacity such as clay soil. Soil stabilization is an effort to improve soil conditions to be better based on the characteristics possessed. The characteristics that are the main parameters are CBR (California Bearing Ratio). Stabilization of the CBR values of clay can be carried out chemically. The stabilitazion way is done by mixing clay soil and Dolomite lime with variations 2%, 4%, 6% on volume of test object. In addition, ripening of test sample by different times, they are 1, 3, 5, and 7 days. From all test samples, they compare clay soil without mixing lime variation, the following will do stabilization. Based on the research, it was found that CBR value of clay soil 5.56%. After mixing 2% lime of CBR value 6,27%, 4% of mixing, Dolomite lime of CBR value 7,60% and 6% mixing, lime of CBR value 5,51%. After stabilization by Dolomite lime based on curing time. The Highest CBR Value is found on lime variation 4% with 5 days of curing time. CBR value is 8,67%

Keywords
Stabilization, CBR, Dolomite lime, Curing

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/dzDFkXmHBArV

Corresponding Author
Trihanyndio Rendy Satrya

Institutions
i) Civil Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
ii) Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
iii) Civil Infrastructure Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Abstract
Issues on river embankment as the flood barrier system currently has increased due to plenty failures occurred along dry and rainy seasons in Indonesia. Water level change along the seasons might be the primary cause of failures. Commonly saturated embankment stability is almost always applied in assessing safety factor. Even though, in-situ soil properties show different characteristics among the different water level, such as soil suction. In fact, suction or negative pore water pressure, that located above ground water table, has advantageous effect to increase the unsaturated embankment stability. This paper analyzes the saturated and unsaturated embankment stability in Bengawan Solo river at Kanor village section, Bojonegoro, East Java, Indonesia due to soil suction change along the various water level. Both analyses of water table definition and embankment stability are performed to determine safety factors. The field investigations were conducted to obtain the actual in-situ soil properties. Safety factors are calculated for maximum, medium and low water levels. Safety factor varies due to various water level, it increases when the water level is increasing, while it decreases when the water is decreasing. It implies that the hydrostatic force enhances the stability condition. Because of negative pore water pressure consideration above ground water table, safety factor of unsaturated embankment stability is greater than safety factor of saturated embankment stability.

Keywords
Bengawan Solo river, embankment, Kanor, water level change, suction.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/qRxBH42fLcwK

Corresponding Author
Rida Respati

Institutions
Universitas Muhammadiyah Palangkaraya

Abstract
Soil is the foundation from a pavement construction. It is to distribute the direct load from the accepted load. Much soil cannot be used as foundation soil because a bad characteristic. The characteristic is California Bearing Ratio (CBR) and Unconfined Compressive Strenght (UCS). The way to repaire the soil characteristic by using soil stabilization. This stabilization will use roadbooster. Roadbooster is as chemical material addition to improve the clay soil properties and quality for pavement material. This research will stabilize clay soil of Tumbang Rungan with roadbooster and sand. The main parameter uses California Bearing Ratio (CBR) and Unconfined Compressive Strenght (UCS). Based on results of the clay soil test of Tumbang Rungan, the data obtained CBR original soil 7.89%, CBR immersion 0% roadbooster 76%, CBR immersion 4% roadbooster 40.85%, CBR immersion 8% roadbooster 27.08 %, UCS original ground 0,56 kg / cm2, UCS 0% roadbooster 7,30 kg / cm2, UCS 4% roadbooster 7,40 kg / cm2, and UCS 8% roadbooster 8,30 kg / cm2. From the CBR data, the highest CBR value is the time of mixing 0% roadbooster or without additional roadbooster, while the highest value of UCS lies in mixing 8% roadbooster.

Keywords
Clay soil, stabilization, cement, sand, roadbooster

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/xTJVdLteg6uE

Corresponding Author
Rizky Kurniasih

Institutions
a) Students of Civil Engineering Department, Faculty of Civil, Environmental & Geo Engineering, Sepuluh Nopember Institute of Technology
Jalan Raya ITS, Surabaya 60111, Indonesia
*always.qqs[at]gmail.com
b) Civil Engineering Department, Faculty of Civil, Environmental & Geo Engineering, Sepuluh Nopember Institute of Technology, Surabaya

Abstract
Construction Service Office Unit IV Surabaya is one of the work units of Ministry of Public Works and Housing. This work unit owns an asset building of workshops and dormitories which serves to support the tasks and functions in carrying out construction training. However, in terms of frequency of use and the level of utilization of the building, it turned out that it is still low, so its become rarely used and has not been used optimally to support the duties and functions of the work unit especially for construction training. The purpose of this study is to analyze the strategies for the utilization of workshops and dormitories in order to assist the construction industry-s training. This research is a case study that adopt some methods for collecting data such as observation, semi-structured interviews and closed questionnaires to respondents from the workshop and dormitory building management at Construction Service Office Unit IV Surabaya. To obtain the proper strategy and in line with the internal and external environment condition of the work units, therefore it is used technique strategy covering the formulation stages with EFE and IFE Matrix, matching stages with SWOT Matrix, IE Matrix, SPACE Matrix, Grand Strategy Matrix and decision stages with QSPM. From the results of the study, it obtained that the position of works units was in Quadrant 2, therefore the appropriate strategy, namely improving coorporation with external parties, such as local government, construction services associations, certified construction institution services, contractors and vocational schools to organize construction training that utilizes workshop buildings and dormitories.

Keywords
Building Asset, Building Utilization, Strategy Formulation, Market Penetration

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/yWR7nvCxHcYU

Corresponding Author
Alamsyah -

Institutions
a) Politeknik Negeri Bengkalis, Riau, Indonesia 28714
alamsyah[at]polbeng.ac.id

b) Politeknik Negeri Bengkalis, Riau, Indonesia 28714
indriyani_p[at]polbeng.ac.id

Abstract
Low quality control in concrete work often causes a decrease in the quality of compressive strength. The effect of that, the function of the structure was not achieved as planned. There have been many studies aimed at increasing the strength of structures using CFRP, GFRP, Steel plates, steel wires, etc. This paper presents the results of the behavior of concrete slabs with cold formed steel as strengthening. Cold formed steel that easily obtained, has a high tensile strength and low prices was the ideal option for strengthening materials, particularly in flexural structures. The specimen test that has been made was the normal concrete slab (NS) and concrete slab with additional channel shape cold formed steel (SS). The test results showed an increase in stiffness and peak load on the SS specimen. On the other hand, there was no significant difference load when the first crack on the SS or NS specimens. The crack pattern that occurs in NS and SS was not much different and was still a flexural crack categories, and this was as expected that the addition of cold formed steel area considering the slab structure will not shear failure.

Keywords
Channel shape; cold formed steel; flexural strength; strengthening

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/dgjeQ2nzh4Wr

Corresponding Author
Bagus Soebandono

Institutions
Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, Brawijaya Street, Bantul, Yogyakarta, 55183, Indonesia

Abstract
Railway bridge with the warren type truss structure in the Sumatera region is an infrastructure has existed since the Dutch colonial era. Bridge is used as a mode transportation for natural resources of coal. The construction of railway bridge must always be monitored and evaluated for the feasibility of the structure, especially for earthquake load. This is due to change the latest of earthquake hazard maps and regulations regarding earthquake load. The research used SNI 2833:2016 regulations, about bridge planning for earthquake load and 2017 earthquake hazard maps, by modelling the 42 meter warren type of truss structure using SAP2000 V.21 software. The results of the research indicate that, the largest of mode shape value occurs UZ point with the 6 mode number of 0,82536 displacement unit and a period value of 0,075276 second. The largest of period (T) value occurs in 1 mode number of 0,37002 second. The maximum displacement occurs U3 point at the joint 25 of 36,437377 mm opposites the axis. The value of displacement in the direction of U3 is smaller than the value of allowed deflection of 52,5 mm. Then, at the stress control, there are 13 frames that have overstressed and the maximum stressed of frame occurs on the pressure frame, the IWF150.150.7.10 frame has the Pu value of 22,462 tons with a nominal compressive capacity (Pn) of 12,612 tons. Based on the 3 riviews, it can be concluded that, the bridge structure requires structural reinforcement on cross girder 1 (IWF1100.400.16.28), 2(IWF1100.400.16.28) and 7(IWF1100.400.16.28) frames and on wind bracing 13 to 22 (IWF150.150.7.10) frames.

Keywords
Railway bridges, earthquake

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/tzLkHTAhqWen