Rekayasa Sipil最新文献_第8页

Ketahanan Mortar Ringan Campuran Gula Aren dan Ragi pada Suhu Tinggi: Narrative Review

Rekayasa Sipil Pub Date : 2022-10-11 DOI: 10.21776/ub.rekayasasipil.2022.016.03.1

S. Christina, Daniel Kristanto, Fahri Hafisuddin, Monita '. Olivia

{"title":"Ketahanan Mortar Ringan Campuran Gula Aren dan Ragi pada Suhu Tinggi: Narrative Review","authors":"S. Christina, Daniel Kristanto, Fahri Hafisuddin, Monita '. Olivia","doi":"10.21776/ub.rekayasasipil.2022.016.03.1","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2022.016.03.1","url":null,"abstract":"Lightweight mortar is a specific type of mortar that is made by adding a foaming agent. A lightweight mortar has a lot of pores or cavities filled with air, which reduces the mortar’s weight. The lightweight mortar has better heat insulation than an ordinary mortar with its high porosity. There has been much research and application of lightweight mortar in the last few years. This review focuses on lightweight mortar made with a natural additive that has good high-temperature resistance. Many additives can be used, such as yeast and palm sugar. Yeast is a microorganism that can be used as a foaming agent because it can produce carbon dioxide (CO2) that creates a lot of pores in the mortar through the glycolysis process. Palm sugar is a disaccharide groups sugar, and sucrose, consisting of glucose and fructose. Glucose can reduce gypsum consumption in mortar and ettringite formation. Besides, sugar contains lignin, which can increase the bonding strength of mortar components. This study proves that the innovation of lightweight mortar with organic additives has a long-term potency with its durability at high temperatures.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83225750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Perilaku Lentur Komposit Beton dan Aspal dengan Kandungan Buton Granular Asphalt (BGA) 弹性性能混凝土和沥青复合材料与颗粒状沥青(BGA)含量

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.10

Erwin syaiful Wagola, Muhammad Tharik Kemal, M. Rasyid

引用次数: 0

Pemanfaatan Agregat Plastik pada Pembuatan Bata Beton 混凝土砌块中塑料聚合的使用

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.2

Azha Zayda Fasani, Ferina Rahmasari, T. Hastuti, Triastuti Triastuti

{"title":"Pemanfaatan Agregat Plastik pada Pembuatan Bata Beton","authors":"Azha Zayda Fasani, Ferina Rahmasari, T. Hastuti, Triastuti Triastuti","doi":"10.21776/ub.rekayasasipil.2022.016.02.2","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2022.016.02.2","url":null,"abstract":"The increased demand for red bricks or concrete bricks has resulted from the increase in house construction. Meanwhile, raw materials for making red bricks are becoming limited. As a result, alternative materials are required in the production of concrete bricks. On the other hand, even more plastic disposed of in landfills and cannot be recycled. As a consequence, the use of plastic waste is assumed to be a solution to the problem of plastic waste including the availability of raw materials for making concrete bricks. This research used artificial aggregate of plastic recycle (LDPE) which derived from cap bottle or plastic bag. The purpose of this research is to know the influence of plastic aggregate utilizing on the brick. The testing were compressive strength, density and permeability as SNI 03-0349-1989 about brick. The bricks in the research used plastic aggregated which the maximum diameter was 4 mm.Â The percentages of plastic aggregate are between 5% until 25% as replacement of sand. The results show 50 kg/cmÂ² of the maximum compressive strength, 1667 gr/cm3 for density and 10% for water absorption. Based on SNI 03-0349-1989, the brick in this research was the brick with class III.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85764541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Perencanaan Ulang Anggaran Biaya dan Waktu Pelaksanaan Gedung Perkuliahan dengan Menggunakan Metode BIM 使用BIM方法重新规划演讲的成本预算和时间

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.3

Rizky Ilham Mardhani, Ani Ratnaningsih, S. Arifin

引用次数: 1

Identifikasi Risiko pada Proyek Waste to Energy Melalui Kerjasama Pemerintah dengan Badan Usaha di Sumatera Barat 通过政府与西苏门答腊企业的合作，确定浪费能源项目的风险

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.7

Sesmiwati Sesmiwati, W. P. Utama, Martalius Peli

{"title":"Identifikasi Risiko pada Proyek Waste to Energy Melalui Kerjasama Pemerintah dengan Badan Usaha di Sumatera Barat","authors":"Sesmiwati Sesmiwati, W. P. Utama, Martalius Peli","doi":"10.21776/ub.rekayasasipil.2022.016.02.7","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2022.016.02.7","url":null,"abstract":"Waste to energy (WTE) project is a solution to solve energy crisis and at the same time may resolve the waste problem. Public private partnership (PPP) scheme has been widely used to deliver WTE project. The success of PPP projects heavily relies on the advisability of management and risk sharing. Â Risk management needed to conduct in order to understand specific risks, examine risk sharing between government and public sector and analyze risk mitigation for preventing and rectifying the impact.Â The effective decision on risk needed to improve decision-making process that may occur in the WTE projects. Therefore, this study identify risk probability in PPP WTE projects in West Sumatera. This probability relying on expert judgement were collected via an empirical questionnaire survey. The respondents were invited to rate a total of 21 risk factors that impact the success of PPP WTE projects as gleaned from previous research. The overall result ranked risk probability factors that land acquisition and administration approval risk, public opposition, construction cost overrun, operating cost overrun, and design/construction/commissioning performance risk are the top five risk factors affecting the sustainable development of PPP WTE Projects. A better understanding of the risk may improve project feasibility and attract private sector for investing in WTE projects.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84984886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of What If, Fast Track and Crash Program Methods for Acceleration of Project Delay 加速项目延迟的What If、Fast Track和Crash Program方法的比较

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.5

Ratih Prawirawati, A. Suharyanto, Alwafi Pujiraharjo

引用次数: 0

Identifikasi Penyedia Jasa Konstruksi Sebagai Aplikator Building Information Modeling di Indonesia 确定建筑服务提供者是印尼的信息建模应用程序

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.4

Bambang Herumanta, Agus Nugroho

{"title":"Identifikasi Penyedia Jasa Konstruksi Sebagai Aplikator Building Information Modeling di Indonesia","authors":"Bambang Herumanta, Agus Nugroho","doi":"10.21776/ub.rekayasasipil.2022.016.02.4","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2022.016.02.4","url":null,"abstract":"The Indonesian government through the Minister of Public Works and Public Housing Regulation number 22/2018 has required the use of BIM in the construction of state buildings with criteria above 2000 square meters and over two floors. These regulations are binding on stakeholders such as owners, consultants, and contractors. This study aims to identify construction service business entities related to the use of Digital Building Information Modeling technology. The research steps included: preparing the object of research in the form of a list of contractors and consultants in Indonesia. The various data collection methods used to find and complete the data required in this research process were: preparation of data search tools in the form of questionnaires, interviews with contractors and consultants, Submitting questionnaires to contractors and consultants. Processing and analysis of the data that has been obtained is then processed and analyzed for the preparation of the final research report. Data processing was carried out using statistical software tools. The results showed that the companies that implemented BIM the longest, namely> 5 years were 28%, the 1-2 years time span was 17%, the 3-4 years time span was 22%, and those <1 years were 33%. Companies that apply BIM> 5 years according to our data are state-owned companies (State-Owned Enterprises), while those with less than one year of experience are private companies. Reduction of time for contractors and / or consultants, for KW10-15 by 17%, KW15-30 by 17%, KW30-40 by 22%, and for K40-50 by 44%. In terms of time, the effect of implementing BIM in companies can be said to reduce the amount of time and the most dominant is the reduction of time by 40% - 50%. Cost reduction for contractors and / or consulting companies, for KB5-15 by 50%, KB15-25 by 16%, KB25-30 by 17%, and for KB30-40 by 17%. In terms of costs, as a result of implementing BIM in companies, it can be said that it reduces the amount of costs and the most dominant is the cost reduction of between 5% - 15%.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85047012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perancangan Sistem Pakar Untuk Menilai Kinerja Irigasi 设计专家系统来评估灌溉性能

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.1

Hoerudin Hoerudin, B. Santosa

{"title":"Perancangan Sistem Pakar Untuk Menilai Kinerja Irigasi","authors":"Hoerudin Hoerudin, B. Santosa","doi":"10.21776/ub.rekayasasipil.2022.016.02.1","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2022.016.02.1","url":null,"abstract":"Irrigation is a supporting infrastructure for water distribution in agriculture. Its role is vital, especially for agricultural areas which are not rain-fed, meaning that to irrigate agricultural areas the irrigation infrastructure is needed. It is important for all parties involved in agriculture and irrigation management institutions to find out and ensure the condition and performance of an irrigation network, whether its function is still as planned or even vice versa. So far, the performance evaluation of irrigation networks is still carried out conventionally and only reaches a form of Maintenance Operation report, not specific to its performance. So based on these conditions, this research will build an expert system that can be used to assess the performance of irrigation networks. The design begins by determining the logic of assessment that will be used as a way of thinking from the expert system that will be built. The indicators used by the system to assess irrigation performance are as stated in the regulation of the Ministry of Public Works and Public Housing No. 12 of 2015. After designing the expert system, the next step is to simulate it using the data available in the operation and maintenance reports of some irrigation networks that are used as samples. Then the simulation results are analyzed so that it can be known whether the system can work as planned or not. The system simulation results show a mismatch between the two indicators namely the performance of infrastructure and water services. While other assessment indicators have logical results.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77284285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analisis Potensi Likuifaksi di Area PLTU Pacitan 分析pit Pacitan的潜在清除率

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.8

Mesra surya Ariefin, As’ad Munawir, Arief Rachmansyah

引用次数: 0

Relationship of Area Ratio to Displacement on Subgrade Stabilized by Deep Soil Mixing 深层土搅拌稳定路基面积比与位移的关系

Rekayasa Sipil Pub Date : 2022-06-30 DOI: 10.21776/ub.rekayasasipil.2022.016.02.6

Dara Ayu Lisna Hadi, Y. Zaika, A. Munawir

引用次数: 0