The Air Traffic Management study program has graduate learning outcomes level 5 SKKNI flight traffic guides and Aeronautical information lighting, graduate learning outcomes are realized in the issuance of licenses tested by the directorate of flight navigation. The material tested is knowledge related to the field and science. The purpose of the research is to develop interactive learning media with website-based for license exam preparation and explain how to operate the website called "ALEIS" (Air Traffic Controller Licensce Exam Information System). In this study, using R&D (Reseach and Development) research with the development of the Plomp model, the results of validation testing on the application show the usability level value of the "ALEIS" (Air Traffic Controller License Exam Information System) application shows that 96% of the "ALEIS" application makes it easier for users. This is in line with the research objectives, namely developing interactive learning media based on the ALEIS (ATC License Exam Information System) website where the website can be used properly and plays a very important role in preparing for the license exam in the air traffic management program
{"title":"Development of Interactive Learning Media Based on the Aleis (ATC Licensce Exam Information System) Website for Air Traffic Controllers at Makassar Aviation Polytechnic","authors":"Irfan Irfan, Hasanah Nur, Ichsan Nadjib","doi":"10.47191/etj/v9i08.02","DOIUrl":"https://doi.org/10.47191/etj/v9i08.02","url":null,"abstract":"The Air Traffic Management study program has graduate learning outcomes level 5 SKKNI flight traffic guides and Aeronautical information lighting, graduate learning outcomes are realized in the issuance of licenses tested by the directorate of flight navigation. The material tested is knowledge related to the field and science. The purpose of the research is to develop interactive learning media with website-based for license exam preparation and explain how to operate the website called \"ALEIS\" (Air Traffic Controller Licensce Exam Information System). In this study, using R&D (Reseach and Development) research with the development of the Plomp model, the results of validation testing on the application show the usability level value of the \"ALEIS\" (Air Traffic Controller License Exam Information System) application shows that 96% of the \"ALEIS\" application makes it easier for users. This is in line with the research objectives, namely developing interactive learning media based on the ALEIS (ATC License Exam Information System) website where the website can be used properly and plays a very important role in preparing for the license exam in the air traffic management program","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"39 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928646","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}
Brian Kamau Mungai, Professor Kelvin Kabeti Omieno, Dr. Mathew Egessa, PhD, Peninah Njeri Manyara
The sudden growth of technology has profoundly shifted various sectors, notably education, where Artificial Intelligence (AI) chatbots are revolutionizing Learning Management Systems (LMS). LMSs are pivotal in the management of educational materials and engagements between educators and students. Traditional LMSs often encounter obstacles like limited interactivity and static content, which impact student engagement and overall effectiveness. AI chatbots can tackle these challenges by providing real-time, adaptable support, thereby enriching the educational process. This study explores the integration of these chatbots in LMS through the lens of three pedagogical principles: Cognitive Load Theory (CLT), Constructivist Learning Theory, and Adaptive Learning Theory. CLT strives to regulate cognitive load to enhance learning efficiency, with chatbots simplifying content and offering instant feedback. Constructivist Learning Theory advocates for active, contextual learning through interaction, a principle supported by AI chatbots engaging learners in conversations and problem-solving activities. Adaptive Learning Theory emphasizes the personalization of educational experiences, a goal achieved by AI chatbots tailoring content and adjusting to student performance in real time. This study presents AI chatbots' alignment with pedagogical principles, revealing their potential to enhance LMS environments and improve student engagement, comprehension, and achievements.
{"title":"AI Chatbots in LMS: A Pedagogical Review of Cognitive, Constructivist, and Adaptive Principles","authors":"Brian Kamau Mungai, Professor Kelvin Kabeti Omieno, Dr. Mathew Egessa, PhD, Peninah Njeri Manyara","doi":"10.47191/etj/v9i08.15","DOIUrl":"https://doi.org/10.47191/etj/v9i08.15","url":null,"abstract":"The sudden growth of technology has profoundly shifted various sectors, notably education, where Artificial Intelligence (AI) chatbots are revolutionizing Learning Management Systems (LMS). LMSs are pivotal in the management of educational materials and engagements between educators and students. Traditional LMSs often encounter obstacles like limited interactivity and static content, which impact student engagement and overall effectiveness. AI chatbots can tackle these challenges by providing real-time, adaptable support, thereby enriching the educational process. This study explores the integration of these chatbots in LMS through the lens of three pedagogical principles: Cognitive Load Theory (CLT), Constructivist Learning Theory, and Adaptive Learning Theory. CLT strives to regulate cognitive load to enhance learning efficiency, with chatbots simplifying content and offering instant feedback. Constructivist Learning Theory advocates for active, contextual learning through interaction, a principle supported by AI chatbots engaging learners in conversations and problem-solving activities. Adaptive Learning Theory emphasizes the personalization of educational experiences, a goal achieved by AI chatbots tailoring content and adjusting to student performance in real time. This study presents AI chatbots' alignment with pedagogical principles, revealing their potential to enhance LMS environments and improve student engagement, comprehension, and achievements.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"32 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928549","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}
Enoch Adama Jiya, Muhammad B. Muhammad, S. K. Abolaji, Suleiman Turku
The introduction of Fifth Generation (5G) and beyond networks has brought forth a new age of potential and problems in the quickly changing telecom industry. From conventional communication systems to complex radio communication networks, wireless communication has advanced significantly. With substantial advancements over earlier technologies, 5G cellular networks present a novel idea that unifies a wide range of machines and gadgets. 5G technology expands the user experience and improves communication efficiency through previously unknown advancements. Researchers have used cutting-edge technologies to create networks of tiny cells. Future wireless networks will still have significant challenges related to interference management. Heterogeneous Networks (HetNets), Internet of Things (IoT), Device-to-Device (D2D) connectivity, Relay Nodes (RNs), Beamforming, Massive Multiple Input Multiple Output (M-MIMO), millimetre-wave (mm-wave), and other systems are all incorporated into the new network design. The performance and dependability of these sophisticated networks are greatly impacted by noise and interference; thus, controlling these elements effectively is essential. In order to maximize the performance of future wireless communication systems, this study looks at the interference and noise problems that have been seen and researched in a variety of network architectures and methodologies, including 5G and beyond. It emphasizes the significance of strong interference management techniques.
{"title":"Overview on Technologies for Combating Interference and Noise Management in 5G and Beyond Network","authors":"Enoch Adama Jiya, Muhammad B. Muhammad, S. K. Abolaji, Suleiman Turku","doi":"10.47191/etj/v9i08.01","DOIUrl":"https://doi.org/10.47191/etj/v9i08.01","url":null,"abstract":"The introduction of Fifth Generation (5G) and beyond networks has brought forth a new age of potential and problems in the quickly changing telecom industry. From conventional communication systems to complex radio communication networks, wireless communication has advanced significantly. With substantial advancements over earlier technologies, 5G cellular networks present a novel idea that unifies a wide range of machines and gadgets. 5G technology expands the user experience and improves communication efficiency through previously unknown advancements. Researchers have used cutting-edge technologies to create networks of tiny cells. Future wireless networks will still have significant challenges related to interference management. Heterogeneous Networks (HetNets), Internet of Things (IoT), Device-to-Device (D2D) connectivity, Relay Nodes (RNs), Beamforming, Massive Multiple Input Multiple Output (M-MIMO), millimetre-wave (mm-wave), and other systems are all incorporated into the new network design. The performance and dependability of these sophisticated networks are greatly impacted by noise and interference; thus, controlling these elements effectively is essential. In order to maximize the performance of future wireless communication systems, this study looks at the interference and noise problems that have been seen and researched in a variety of network architectures and methodologies, including 5G and beyond. It emphasizes the significance of strong interference management techniques.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"23 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925765","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}
Pub Date : 2024-07-16DOI: 10.30684/etj.2024.148865.1734
Ahmed Edan, W. Abdulsahib
{"title":"Analysis of prestressed concrete beams experimentally utilizing steel strands and CFRP bars","authors":"Ahmed Edan, W. Abdulsahib","doi":"10.30684/etj.2024.148865.1734","DOIUrl":"https://doi.org/10.30684/etj.2024.148865.1734","url":null,"abstract":"","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"59 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141643413","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}
During the covid-19 pandemic, consumer demand for product quality on production accuracy and product availability at PT XYZ has increased. Because demand from consumers is fluctuating but the company cannot meet this demand. One way to maximize supply chain performance assessment is to evaluate the performance measurement of supply chain management using the SCOR and DEA methods and assisted by LINDO 6.1 software. The results of the research, risk identification carried out using the SCOR method with five activities, namely plan, source, make, deliver, and return, obtained 22 risks that occur in the company's supply chain, each of which is divided into: 4 risks that occur in the plan activity, 9 risks that occur in the source activity, 4 risks that occur in the make activity, 3 risks that occur in the deliver activity, and 2 risks that occur in the return activity. And from data processing with the DEA method shows that the rice product that is the target of improvement is FSN Setra Wangi 5 kg (FPW017) obtained 0.8348271 or < 1 with the variable that is the target of improvement is plan. Further research is recommended to be developed by adding benchmarking so that the application of the SCOR model can be carried out more completely. Then DEA calculations with more specific parameters so as to produce better data on each supply chain process.
{"title":"Rice Supply Chain Performance Measurement Model Using Supply Chain Operational Reference and Data Envelopment Analysis Methods at PT XYZ","authors":"Defi Norita, Ririn Regiana Dwi Satya, Asep Endih Nurhidayat, Andary Asvaroza Munita","doi":"10.47191/etj/v9i07.08","DOIUrl":"https://doi.org/10.47191/etj/v9i07.08","url":null,"abstract":"During the covid-19 pandemic, consumer demand for product quality on production accuracy and product availability at PT XYZ has increased. Because demand from consumers is fluctuating but the company cannot meet this demand. One way to maximize supply chain performance assessment is to evaluate the performance measurement of supply chain management using the SCOR and DEA methods and assisted by LINDO 6.1 software. The results of the research, risk identification carried out using the SCOR method with five activities, namely plan, source, make, deliver, and return, obtained 22 risks that occur in the company's supply chain, each of which is divided into: 4 risks that occur in the plan activity, 9 risks that occur in the source activity, 4 risks that occur in the make activity, 3 risks that occur in the deliver activity, and 2 risks that occur in the return activity. And from data processing with the DEA method shows that the rice product that is the target of improvement is FSN Setra Wangi 5 kg (FPW017) obtained 0.8348271 or < 1 with the variable that is the target of improvement is plan. Further research is recommended to be developed by adding benchmarking so that the application of the SCOR model can be carried out more completely. Then DEA calculations with more specific parameters so as to produce better data on each supply chain process.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"118 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646751","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}
This study examined cross-cultural management in a diverse organization. Employees (varying in age, sex, background, etc.) disagreed on the company's cultural competence, particularly in communication, trust, and leadership. Further analysis revealed discrepancies in communication styles, values, business practices, and navigating regulations. Interestingly, age seemed to influence how employees viewed these issues. While cultural intelligence, communication, and open-mindedness on their own didn't necessarily improve specific areas, a more positive and collaborative work environment with increased trust did bridge cultural divides. Based on these findings, the study proposes a comprehensive Cross-Cultural Management Plan including diversity training, improved communication initiatives, leadership development focused on inclusivity, and activities fostering a positive workplace culture. This plan aims to address the identified challenges and create a more inclusive and successful organization.
{"title":"High-Speed Railway Project of a Chinese State-Owned Enterprise in Indonesia: A Cross-Cultural Management Assessment","authors":"Wenlin Yang, Ryan John L. De Lara","doi":"10.47191/etj/v9i07.07","DOIUrl":"https://doi.org/10.47191/etj/v9i07.07","url":null,"abstract":"This study examined cross-cultural management in a diverse organization. Employees (varying in age, sex, background, etc.) disagreed on the company's cultural competence, particularly in communication, trust, and leadership. Further analysis revealed discrepancies in communication styles, values, business practices, and navigating regulations. Interestingly, age seemed to influence how employees viewed these issues. While cultural intelligence, communication, and open-mindedness on their own didn't necessarily improve specific areas, a more positive and collaborative work environment with increased trust did bridge cultural divides. Based on these findings, the study proposes a comprehensive Cross-Cultural Management Plan including diversity training, improved communication initiatives, leadership development focused on inclusivity, and activities fostering a positive workplace culture. This plan aims to address the identified challenges and create a more inclusive and successful organization.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"27 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646928","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}
Adeyanju Ibrahim A., Oderinde Kehinde Rachael, A. O. Titilayo, Gbadamosi Omoniyi. Ajoke, Makinde Bukola Oyeladun, Falohun Adeleye Samuel
There are quite a number of challenges faced by teaching staff which if ameliorated can help reduce the quality of time spent on monotonous task associated with students essays grading More so, these days in Nigeria and other related parts of the world institutions deal with a large number of students. These however make grading time consuming and costly, therefore an automated system that can handle the tasks is highly desirable. The developed automated essay grading system in this research is restricted to grading of short and structured essay responses. Java programming language was used for the implementation and MySQL relational database system with WAMPSERVER as the back end. The results showed the user-friendly modules which enable users to navigate through various interfaces easily and work as required. The developed system has an Exact Agreement rate of 0.4 and a Pearson Correlation of 0.93 with human graders.
教学人员面临着许多挑战，如果这些挑战得到改善，将有助于减少花费在与学生论文评分相关的单调任务上的时间。然而，这些都使得评分工作既耗时又费钱，因此，一个能够处理这些任务的自动化系统是非常可取的。本研究开发的自动论文评分系统仅限于对短文和结构化论文进行评分。该系统使用 Java 编程语言进行实施，并使用带有 WAMPSERVER 的 MySQL 关系型数据库系统作为后端。研究结果表明，该系统具有用户友好型模块，使用户能够轻松浏览各种界面并按要求工作。开发的系统与人工评分员的精确一致率为 0.4，皮尔逊相关性为 0.93。
{"title":"Artificial Intelligence Based Essay Grading System","authors":"Adeyanju Ibrahim A., Oderinde Kehinde Rachael, A. O. Titilayo, Gbadamosi Omoniyi. Ajoke, Makinde Bukola Oyeladun, Falohun Adeleye Samuel","doi":"10.47191/etj/v9i07.06","DOIUrl":"https://doi.org/10.47191/etj/v9i07.06","url":null,"abstract":"There are quite a number of challenges faced by teaching staff which if ameliorated can help reduce the quality of time spent on monotonous task associated with students essays grading More so, these days in Nigeria and other related parts of the world institutions deal with a large number of students. These however make grading time consuming and costly, therefore an automated system that can handle the tasks is highly desirable. The developed automated essay grading system in this research is restricted to grading of short and structured essay responses. Java programming language was used for the implementation and MySQL relational database system with WAMPSERVER as the back end. The results showed the user-friendly modules which enable users to navigate through various interfaces easily and work as required. The developed system has an Exact Agreement rate of 0.4 and a Pearson Correlation of 0.93 with human graders.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"37 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141644921","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}
Pub Date : 2024-07-10DOI: 10.30684/etj.2024.149236.1742
Ali Al-Obaidy, Ekhlas M. Fayyadh, Amer M. Al-Dabagh
{"title":"Effect of nano and nanocomposite coating on pool boiling heat transfer","authors":"Ali Al-Obaidy, Ekhlas M. Fayyadh, Amer M. Al-Dabagh","doi":"10.30684/etj.2024.149236.1742","DOIUrl":"https://doi.org/10.30684/etj.2024.149236.1742","url":null,"abstract":"","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"16 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659721","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}
Power generation systems have become useful for grid base and off grid electric power generation. Hence, its performance has become critical for sustainable growth and development. Performance evaluation of power generation systems has always been carried out using the independent assessment approach (IAA) whose models are: the reliability, availability, emission characteristics, energy and exergy efficiency. The IAA approach only assesses the system performance in part without recur to other indexes, hence, limiting a holistic view of the true plant state. In this paper, the development of a new performance index using the combined assessment approach (CAA) is explored. This approach (CAA) seeks to combine two relatable traditional measures for the assessment of power generation system. The model combines exergy efficiency and reliability measures for analysis. First Independent Power Limited (FIPL) gas turbine power plant was used to test the model. The plant reliability and availability were evaluated along with its thermal efficiency using the exergy model. The analysis of plant thermal efficiency was carried out using the steady state model. Results of the traditional indexes of the plant were compared with the proposed (Bassy-II index) index. It was seen that the new index provided a new assessment criteria. The exergy efficiency, reliability and availability measures indicated a fairly rated plant state. However, the new index defined a new plant state which is unique and represents the true status of the system in whole. Hence, the proposed index (Bassy-II index) is recommended for use in the holistic assessment of power generation systems.
{"title":"Power Generation Systems Assessment: A New Approach","authors":"J. Bassey, I. Odesola","doi":"10.47191/etj/v9i07.04","DOIUrl":"https://doi.org/10.47191/etj/v9i07.04","url":null,"abstract":"Power generation systems have become useful for grid base and off grid electric power generation. Hence, its performance has become critical for sustainable growth and development. Performance evaluation of power generation systems has always been carried out using the independent assessment approach (IAA) whose models are: the reliability, availability, emission characteristics, energy and exergy efficiency. The IAA approach only assesses the system performance in part without recur to other indexes, hence, limiting a holistic view of the true plant state. In this paper, the development of a new performance index using the combined assessment approach (CAA) is explored. This approach (CAA) seeks to combine two relatable traditional measures for the assessment of power generation system. The model combines exergy efficiency and reliability measures for analysis. First Independent Power Limited (FIPL) gas turbine power plant was used to test the model. The plant reliability and availability were evaluated along with its thermal efficiency using the exergy model. The analysis of plant thermal efficiency was carried out using the steady state model. Results of the traditional indexes of the plant were compared with the proposed (Bassy-II index) index. It was seen that the new index provided a new assessment criteria. The exergy efficiency, reliability and availability measures indicated a fairly rated plant state. However, the new index defined a new plant state which is unique and represents the true status of the system in whole. Hence, the proposed index (Bassy-II index) is recommended for use in the holistic assessment of power generation systems.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"33 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141661794","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}
Ahmad Junaidi, Ilham Akbar Gimnastiar, Revisdah Revisdah, R. D. H. Maesa Hariyanto
Subgrade soil or clay subgrade is a type of soil with very high pore water characteristics, causing problems for civil structures, both buildings and road pavements. Bamboo leaf ash contains several compounds such as silica (SiO2) at 77.24%, while cement contains several calcium oxide (CaO) compounds at 60%. Bamboo leaf ash has a high silica content which functions as a support for pozzolanic reactions with clay soil. The variations in the mixture of bamboo leaf ash and cement used are 2%, 3%, 4%, 5% and 6% for bamboo leaf ash and 20% for cement by weight of soil, with a curing time of 4 days. From the two tests that have been carried out, namely soil compaction (Standard Proctor) and Unsoaked CBR (California Bearing Ratio), the optimum values obtained for soil compaction (Standard Proctor) and CBR (California Bearing Ratio) Unsoaked are in the variation of soil + cement addition of 20% + Bamboo Leaf Ash 3%. In the soil compaction test (Standard Proctor), the dry volume weight value was 1,728 gr/cm3 and the optimum water content value was 16.02%, while in the Unsoaked CBR (California Bearing Ratio) the optimum CBR percentage value was 10.25%.
{"title":"The Effect of Adding Bamboo Leaf Ash and Cement on the Stability of Clay Soil","authors":"Ahmad Junaidi, Ilham Akbar Gimnastiar, Revisdah Revisdah, R. D. H. Maesa Hariyanto","doi":"10.47191/etj/v9i07.03","DOIUrl":"https://doi.org/10.47191/etj/v9i07.03","url":null,"abstract":"Subgrade soil or clay subgrade is a type of soil with very high pore water characteristics, causing problems for civil structures, both buildings and road pavements. Bamboo leaf ash contains several compounds such as silica (SiO2) at 77.24%, while cement contains several calcium oxide (CaO) compounds at 60%. Bamboo leaf ash has a high silica content which functions as a support for pozzolanic reactions with clay soil. The variations in the mixture of bamboo leaf ash and cement used are 2%, 3%, 4%, 5% and 6% for bamboo leaf ash and 20% for cement by weight of soil, with a curing time of 4 days. From the two tests that have been carried out, namely soil compaction (Standard Proctor) and Unsoaked CBR (California Bearing Ratio), the optimum values obtained for soil compaction (Standard Proctor) and CBR (California Bearing Ratio) Unsoaked are in the variation of soil + cement addition of 20% + Bamboo Leaf Ash 3%. In the soil compaction test (Standard Proctor), the dry volume weight value was 1,728 gr/cm3 and the optimum water content value was 16.02%, while in the Unsoaked CBR (California Bearing Ratio) the optimum CBR percentage value was 10.25%.","PeriodicalId":11630,"journal":{"name":"Engineering and Technology Journal","volume":"34 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141660490","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}
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