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Proceeding of World Conference
Published by Universitas Narotama Surabaya
ISSN : -     EISSN : 26561174     DOI : -
Core Subject : Economy, Health, Education, Engineering,
Economics, Econometrics & Finance Education Engineering Mathematics Medicine & Pharmacology
Proceeding of World Conference, is Publication of conference articles in the field of multidisciplinary sciences published by the World conference; aims to make it easier for readers and writers to access articles during time and make it easier to download and distribute.
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Articles 7 Documents
 1 
Search results for , issue "Vol. 3 No. 4 (2021): July 2021" : 7 Documents clear
Evaluation of Flood Control in Pakal District With The Construction of The Sumber Rejo Flood Pump in Surabaya City Bob Sandy Rahardjo; Adi Prawito; Ronny Durrotun Nasihien Nasihien
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Flood has always been expected in the rainy season at the Pakal District before 2019, where rainwater flows from Benowo channel to the Sumber Rejo channel and backwater flows from Lamong river to the Sumber Rejo channel. These water “attacks” from the two sides of the water bodies made Sumber Rejo flood every rainy season. In this analysis the maximum water flow rate in Sumber Rejo channel within the 20-year period (Q20) is 22,57 m3/second. To eleminate flood in Sumber Rejo channel, a flood pump station is needed to pump the waterflow from Benowo channel dan stop the backwater infiltrating from the Lamong river. Two flood pumps with a total flow rate of 6 m3/second are already installed and running at the moment, while the optimal capacity of this flood pump station should be 12 m3/second. A large water storage with capacity around 88.712 m3 is already built to keep the water elevation low enough to not overflow the Sumber Rejo channel.
Analysis of the Causes of Delays in Construction Projects at the XYZ Resort Bali Project Ikhsan Setiawan; Rooslan Edy Santosa; Fredy Kurniawan; Nyoman Agus Sandika Purnaman
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

A construction project is a series of interrelated activities to achieve certain objectives (building or construction) within a certain time, cost and quality limitation. Delay in a project is a situation where the project cannot be completed within the planned time. The construction project at the XYZ Resort Bali project, in construction, occurred delays due to disputes. The disputes are caused by several factors between stakeholders, where each stakeholder has various and different problems. The purpose of this study is to identify and analyze the causative factors that contribute to delays in construction projects at the XYZ Resort Bali Project and provide suggestions or determine mitigation measures to overcome them. The method used is a quantitative approach in the form of literature studies, data collection through surveys, data analysis and conclusions. The survey questionnaire was designed based on the factors identified from previous research by determining as many as 6 aspects of the study with 45 types of causes or factors that contributed to project delays. Data analysis was carried out quantitatively descriptive of the delay factor variables from the questionnaire results. The questionnaire data was tested for validity and reliability, then analyzed using the fishbone diagram approach and the House of Risk method to determine the main factors that contribute to project delays and determine mitigation measures to overcome delays in project completion.
Earned Value Method Evaluation of Project Time and Cost Control on Crane Support Structure Construction Projects PT Pindad (Persero) Yopi Lutfiansyah; Wilhelmus Tarigan
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

PT Pindad (Persero) is a manufacturer of heavy-duty equipment such as armoured vehicles. As a result, a crane facility is required to facilitate the material transportation operations, which is supported by a steel structure apart from the building structure. The crane support structure construction process was 19.75 percent delayed until the 12th week. The goals of this study were carried out to evaluate project control using the Earned Value method, which intends to identify project performance in terms of cost and time before and after evaluating project control and knowing the predicted cost and time of total project completion. Schedule Performance Index (SPI) of 0.85 shows a delay of 10.927 percent from the initial plan of 73.731 percent with a realization of 62.804 percent. Meanwhile, the Cost Performance Index (CPI) of 1.22 indicates that the costs incurred are still less than the estimated budget, with a potential profit of Rp. 1,144,245,992.81 or 11,425 percent of the total project budget. Based on the analysis of performance calculations, the estimated project completion time is 26 weeks, or longer than the planned schedule of 22 weeks. In terms of cost, the estimated cost of completing this project is Rp. 8,870,754,007,19. This means that, with the current project cost performance, the project will have a potential profit of Rp. 1,144,245,992.81 or 11,425% of the total project budget. Based on performance calculations, the estimated project completion time is 26 weeks, which is longer than the planned schedule of 22 weeks. The total cost of completing this project is projected to be Rp. 8,870,754,007,19. This means that, regarding the existing project cost performance, the project has a potential profit of Rp. 1,144,245,992.81, or 11.425% of the total project budget.
Experimental Study Of Ready Mix Wastewater Utilization For New Concrete Mixtures Agung Sumarno; Aditya Hendric Nur Prasetyo
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

The use of waste water that is still in accordance with the standards of SNI 06-6989 and APHA 3120B can be reused as a concrete mixture material in the concrete production process at the Batching Plant, especially for low- quality concrete. The purpose of this study was to determine the effect of the use of wastewater with variations of 0%, 25%, 50%, 75% and 100% on the quality or quality of concrete. Based on the results of the study, it was found that at the beginning of the concrete pavement period, the chemical content contained in wastewater from the concrete production process will interfere with the hydration process so that the compressive strength of concrete at the age of 7 days tends to decrease. However, after the age of 28 days, the dissolved solids in the wastewater from the concrete production process fill the pores in the concrete so that the compressive strength of the resulting concrete becomes higher. The value of the use of wastewater to the optimal composition of the concrete mix design is 75% of the total volume of water required. This is based on the results of the compressive strength test which reached 93.37% of normal concrete at the age of 7 days, 100.59% of normal concrete at the age of 14 days and 105.94% at the age of 28 days with the slump and flow table test results of 16cm and 38cm.
Evaluation of Upper Structure Strengthening Due to The Level Addition Based on SNI 2847-2013 Regulation: (Case Study: PNJ Heavy Equipment Building) Vidia Intan Deliani; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

The number of college students, who came to Java Island especially Jakarta City, makes the availability of land will be limited, one who get affected is campus building. The solution that can be done is increase the level of building and evaluate the structural elements ability of existing building. This study aims to determine the effect of additional levels on the internal forces and dimensions of the upper structure and evaluate the conducted by analyzing existing building and building that have been added level using ETABS software which refers to SNI 2847-2013 regulations. The results showed that after the addition of level, moments and shear forces on beam increase averaging 43%, while the column increase averaging 22%. In column axial forces have increased averaging 47%. After the addition of level, structure of Heavy Equipment building is known that there are several structural components which is not strong enough to withstand the load, namely Beams B, B1, and RB consecutively as much as 6 frames, 26 frames, and 12 frames; Columns K, K1, and K2 consecutively as much as 18 frames, 12 frames, and 8 frames. Both beams and columns were strengthened by FRP (Fiber Reinforcement Polymer) so the dimensions of the beams and columns did not change. The strengthening of structural elements is as follows: Beams B, B1, and B2 are strengthened with FRP tensile strength of 2800 MPa, FRP thickness of 1,2 mm, FRP width of 80 mm and the number of FRP used is 1 layer. Columns K, K1, and K2 are strengthened with FRP tensile strength of 4300 MPa, FRP thickness of 0,167 mm, FRP width of 500 mm and the number of FRP used is 16 layer for columns K&K2 and 24 layer for column K1.
Comparative Analysis Of Implementation Methods Soldier Pile And Sheet Pile Retaining Wall On The Construction Of Gwt Pt. Ubs Surabaya Muhammad Alfian Eko Buwono; Koespiadi; Julistyana Tistogondo
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Generally, a basement construction requires an appropriate Earth Retaining Wall to support the development process in the area. In the project area of ??PT. UBS Surabaya has the construction of a Soldier Pile which is arranged from Bored Pile and Bentonite Pile, the construction applies the Bottom Up and Dewatering method which means that construction starts from the subgrade level firstly and then the construction work goes up. This research was aimed to examine the existing types of retaining wall (Soldier Pile) with an alternative comparison of Corrugated Concrete Sheet Pile (CCSP). This is aimed to finding the effectiveness retaining wall that has been used with another methods so that it can affect to management in terms of cost and time which has been taken. Based on the comparison result of two methods, it is found that the use of the Soldier Pile method has a cost difference of Rp. 139,533,000,- less than the Sheet Pile method. However, the implementation time of the Sheet Pile method is 28 days faster than the Soldier Pile method, with this comparison, the Sheet Pile method is considered more effectively applied with an implementation time effectiveness ratio of 36.36% considering that the development project area is close to densely populated settlements. Based on the results of the comparison of the two methods, it is found that the use of the Soldier Pile method has a cost difference of Rp. 139,533,000,- less than the Sheet Pile method. However, the implementation time of the Sheet Pile method is 28 days faster than the Soldier Pile method, with this comparison, the Sheet Pile method is considered more effectively applied with an implementation time effectiveness ratio of 36.36% considering that the development project area is close to densely populated settlements.
The Descriptive Study of Gresik Cements Product Quality: Survey on Gresik Cements Users in Surabaya Felly Febianto; Koespiadi
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Cement is a product that is needed in the construction of infrastructure and various kinds of buildings. The function of cement as an adhesive material in the building construction makes cement have a vital position for people. Therefore, cement producers must pay attention to the quality of cement produced to fulfill the cement supply in accordance with development needs, either quantity or quality. There are many cement producers and brands in the market, makes people have many choices of cement products that can be used. This study aims to examine the quality of Gresik cement on cement users in Rungkut District, Surabaya. The research method used is descriptive quantitative research. Data was collected by spreading questionnaire to 79 cement users who are construction workers in Rungkut District, Surabaya. These data is then processed by applying descriptive statistics supported by SPSS for Windows version 20.0 program. The results reveals that the quality of Gresik cement was categorized as good. The highest quality perceived by respondents is reliability, followed by conformance to specifications and product performance. Meanwhile, aspects that are perceived as lower by users are durability, aesthetics, and additional features.

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