Journal of Lumbini Engineering College https://www.nepjol.info/index.php/lecj <p>The Journal of Lumbini Engineering College is published by the Lumbini Engineering College, Tilottama-7, Bhalwari (Rupandehi) Nepal. It is a research based multi-disciplinary Journal. The aim of this journal is to publish research based articles of different disciplines like Science and Technology, Management, Arts and Education, Medicine, Engineering, Agriculture and Forestry.</p> en-US <p><span style="font-weight: 400;">This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator. </span></p> pantheemp@gmail.com (Prof. Dr. Mohan Prasad Panthi) sioux.cumming@ubiquitypress.com (Sioux Cumming) Thu, 30 May 2024 14:37:43 +0000 OJS 3.3.0.6 http://blogs.law.harvard.edu/tech/rss 60 Enhancing Safety and Health Facilities for Construction Workers: An Empirical Study of Lamahi Ghorahi Tulsipur and Sahajpur Boktan Dipayal Road Project https://www.nepjol.info/index.php/lecj/article/view/66262 <p>This field-based empirical research employs a combination of quantitative and qualitative approaches to address a practical problem related to the safety and health of construction workers. The study utilizes data collected through observation checklists, Key Informant Interviews (KII), and questionnaires distributed to project-related respondents and design professionals not directly associated with the project. The research examines the occurrence of accidents, which were predominantly of a minor nature, and identifies the critical safety and health measures required to address the challenges faced by workers on construction sites. These measures encompass safe drinking water, first-aid equipment, sanitary facilities, provision of Personal Protective Equipment (PPE), and the training of casual workers in safety procedures. The study also evaluates the extent of safety and health provisions within contract documents, contrasting them with the inclusion of staff and worker insurance. Additionally, the research explores the impact of hazard identification, health facilities, and safety provisions on project performance. The study underscores the need to disseminate knowledge about safety and health through training courses, orientation sessions, awareness programs, pictorial representation, and online forums. The safety and health status of construction sites can be significantly improved by implementing the recommendations presented in the final section of this research. It is further recommended that a brief safety and health briefing of five to ten minutes be conducted each morning before work commences. The primary objective of safety and health programs is to prevent workplace injuries, illnesses, and fatalities, ultimately mitigating the suffering and financial burdens these incidents impose on workers, their families, and employers. This research offers empirical insights into practical solutions for enhancing safety and health facilities for construction workers, emphasizing the importance of proactive measures and awareness programs in promoting a safer and healthier work environment.</p> A. Yadav, A. K. Mishra, K. P. Parajuli, A. K. Mishra Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66262 Thu, 30 May 2024 00:00:00 +0000 Hydrogen Fuel: A Global Concern, Policies, Future & Its Overall Impact on Prosperous Nepal https://www.nepjol.info/index.php/lecj/article/view/66265 <p>There is an urgent need to find viable ways to achieve zero-emission energy feasibility due to the significant increase in environmental pollution and global warming caused by uncontrolled fossil fuel consumption over the last decade. The recent advancements in renewable energy and electric vehicles highlight the potential of policy and technology to develop global clean energy industries. Hydrogen could be a leading solution for storing energy from renewable. It has the potential to transport energy over long distances from regions with abundant energy resources to energy crisis areas. Hence, it is a good time to explore the potential of green hydrogen in a sustainable energy platform.</p> D. R. Poudel, G. G. Khatri, G. C. Kaphle Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66265 Thu, 30 May 2024 00:00:00 +0000 Impact Assessment of Utility Relocation on Road Construction Projects: A Case Study Analysis https://www.nepjol.info/index.php/lecj/article/view/66279 <p>Road construction projects often involve the relocation of utility services to accommodate the growing needs of society. However, the impact of these relocations on project performance has not been comprehensively studied. This research aims to assess the challenges and impacts of utility relocation on road construction projects. Data on the impact of utility relocations was gathered from case studies of seven road projects in various phases, including construction and completion. A total of 90 questionnaires were distributed, with a response rate of 77.78%, representing contractors, consultancy firms, and clients. Data analysis included mean and standar d deviation calculations, as well as correlation tests between the number of utility-related change orders, time slippage, and cost overruns. The findings indicate that, on average, utility relocation leads to a 555.78% increase in the utility budget and an average time slippage of 13.79%. The primary challenges in managing utility relocations in road projects include delays in commencing utility identification and relocation work, insufficient utilization of technological tools and software for utility visualization and management, delays in acquiring rights of way for utilities, and the need for rework or change orders. The most impactful utility issues in road construction projects include the failure to identify and characterize utility conflicts, infrequent updates of utility relocation estimates during project development, and changes in utility plans caused by late project design modifications. The study reveals a strong correlation between the number of utility-related change orders and time and cost overruns in road construction projects. Addressing these challenges and proactively managing utility relocations is crucial for enhancing the efficiency and cost-effectiveness of road construction projects.</p> B. Pradhanang, A. K. Mishra, K. P. Parajuli Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66279 Thu, 30 May 2024 00:00:00 +0000 Comparative Assessment of Coarse Aggregate Collected from Tinau River and Banganga River https://www.nepjol.info/index.php/lecj/article/view/66281 <p>This study focuses on the physical and mechanical parameters among various properties of coarse aggregates from Tinau River and Banganga River, studies the variation in compressive strength of concrete cubes made of coarse aggregates from respective sources and their economic assessment for use in various construction projects. The result show that in terms of physical and mechanical properties, aggregates of Tinau River were found slightly better than those of Banganga River. The variation in compressive strength of concrete mix due to change in source is significant for rich mix concrete (1:1.5:3) while there is less significant variation in case of lean mix concrete (1:3:6) and (1:2:4) which shows that the variation increases with the rise in grade of concrete. The economic analysis conducted on the basis of mix design concluded that the difference in cost for producing 1m3 of concrete using coarse aggregate from Tinau River and Banganga River is Rs. 20.40 and the percentage of saving in cost of concrete is only 0.22%. Overall, this research can be valuable to engineers and researchers working in the field of infrastructure development projects.</p> N. Lacoul, Y. L. Pandey Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66281 Thu, 30 May 2024 00:00:00 +0000 Study of Compressibility and Atomic Radius of Lead Sulfide (PBS) https://www.nepjol.info/index.php/lecj/article/view/66282 <p>The purpose of the paper is to study the relationship between temperature and various physical properties of Lead Sulfide (PbS) such as atomic radius, nanopar ticle size, compressibility, energy band gap, and density. It is noted that PbS has a narrow band gap at low temperatures and acts as a semiconductor. The atomic radius is found to be linearly dependent on temperature. The size of the nanopar ticle is influenced by the energy band gap and the effective mass of electrons and holes in the material. The unique properties of PbS have various applications in the fields of optoelectronics, thermo-electronics, and nanotechnology. We have used various parameters to calculate the atomic radius, bulk modulus, nanopar ticle size, and compressibility, which play an important role in recent technologies and devices. The results are in good consistent with experimental data.</p> D. R. Adhikari, S. K. Adhikari, S. P. Baral Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66282 Thu, 30 May 2024 00:00:00 +0000 Reasoning in Steam Education: Unlocking the Power of Induction, Deduction, and Abduction https://www.nepjol.info/index.php/lecj/article/view/66283 <p>This article explores the significant role of reasoning within science education, examining three main processes: deductive, inductive and adductive reasoning. It underscores the significance of these cognitive processes in facilitating comprehension of intricate scientific concepts and problem solving in different domains. It also explains how each mode of reasoning can be applied in real world contexts through practical examples obtained from various fields with the emphasis of their relevance and utility in fostering critical analysis and understanding. It explains all the reasoning with the balanced understanding of reader’s effectiveness. The main aim of the article is ti equip the readers with the tools require to make informed decisions and navigate complex issues in both academic and professional spheres. Finally, the articles seek to enhance the students reasoning proficiency, thereby bolstering their critical thinking abilities and contributing to their success in different intellectual pursuits.</p> I. R. Upadhyaya, G. C. Kaphle Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66283 Thu, 30 May 2024 00:00:00 +0000 Effect of Partial Replacement of Natural Fine Aggregate with Crushed Stone Dust: A Case Study of Makawanpur District https://www.nepjol.info/index.php/lecj/article/view/66284 <p>Stone dust is a waste material produced in stone crusher industry. Stone dust produced from the crushed stone industry is quite numerous. Nowadays in Makawanpur district of Nepal, the availability of high-quality natural fine aggregate has become increasingly limited and expensive due to factors such as restricted river access, illegal dredging, and the rapid surge in construction activities. This situation necessitates the exploration of alternative materials for construction purposes. Crushed stone dust emerges as a compelling substitute, offering an effective solution to partially replace natural fine aggregate in construction applications. To achieve this objective, a meticulous experimental program was designed, involving the creation of cube-shaped specimens. The findings of the study reveal that stone dust can indeed serve as a viable replacement for natural fine aggregate with crushed stone dust, as evidenced by compressive strength measurements. This emphasizes the feasibility and effectiveness of integrating stone dust as a strategic alternative to natural sand in construction endeavors. This study aims to find out the maximum percentage of stone dust to substitute sand in a concrete mix to obtain the maximum strength and good workability. The cement used throughout this work was Ordinary Portland Cement (OPC) of 43 grade. The natural sand was taken from Rapti river and Manahar i river, while the crushed stone dust and coarse aggregate were taken from same source from different crusher of Makawanpur district. The percentages of crushed stone dust replacing natural fine aggregate were varied from 20, 40, 60 and 80% to find out the maximum percentage of crushed stone dust to replace natural fine aggregate from river to produce the maximum compressive strength of concrete. The results of this research showed that the maximum percentage of crushed stone dust, which could replace natural fine aggregate in concrete mixture was 40% with the higher compressive strength than that of concrete with natural sand only. In addition, decreasing the slump value when natural fine aggregate replaced by 20%, 40%, 60% and 80% slightly.</p> P. Muktan, K. P. Parajuli, B. R. Gyawali Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66284 Thu, 30 May 2024 00:00:00 +0000 Exploring the Impact of Curing Techniques on the Compressive Strength of Concrete Structures: A Comprehensive Investigation https://www.nepjol.info/index.php/lecj/article/view/66285 <p>This research investigates the influence of various curing methods on the compressive strength of plain concrete, exploring techniques such as water ponding, jute curing, plastic bag curing, dry curing, and geo-textile curing. Emphasizing both early and long-term concrete strength enhancement, the study identifies water ponding and geo-textile curing as the most promising for high early strength, while jute curing and plastic bag curing exhibit moderate performance, with dry curing ranking as the least effective. Incorporating insights from industry professionals through a structured questionnaire, the research underscores the collective awareness of the pivotal role of proper curing practices in concrete strength and durability. The study recommends further exploration into the influence of varying slump values and alternative curing methods, considering diverse environmental conditions, with the potential to optimize curing practices for robust and durable concrete structures. In conclusion, this research highlights the critical importance of correct curing practices for ensuring concrete structures' strength and longevity, offering practical implications for the construction industry and civil engineering.</p> Y. Bhattarai, P. Chapagain, S. Panthi, S. P. Shrestha Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66285 Thu, 30 May 2024 00:00:00 +0000 Intangible Cultural Heritage Practices in Sacred Garden of Lumbini https://www.nepjol.info/index.php/lecj/article/view/66286 <p>Similar to Mecca or Bethlehem, Lumbini is a significant pilgrimage center. UNESCO World Heritage Site Maya Devi Temple, which is situated close to a holy pool. This site has the archaeological remnants of brick structures built by Ashoka in the third century BC, as well as the discovery of a timber shrine from the sixth century BC. The ancient monastic remains at Lumbini, the sacred Bodhi tree, an ancient bathing pond, the Ashokan pillar, built by King Ashoka in 249 BC, and the Maya Devi Temple encompass the holy site. The sacred Bodhi tree, the Ashokan pillar, the Mayadevi Temple which is believed to be the place of the Buddha's birth and the remains of previous monasteries may all be found at Lumbini, a holy site. At the location, pilgrims from different nations chant and meditate from early dawn till early evening. Moreover, The Lumbini monastic zone is a model of meditation and spiritual living, enclosed away during its picturesque surroundings. The lessons of the Buddha, Siddhartha Gautama, are repeated in this place by the rhythm of devotion and reflection through life. The intangible cultural heritage of Lumbini, the sacred place of Lord Buddha's birth, is a living collection of rituals, ceremonies, and traditions. Spiritual practices such as ancient meditation processes, lively folk dances, oral traditions, and sacred ceremonies are examples of these cultural intangibles. Lumbini's intangible heritage demonstrates to the vast spiritual and cultural heritage of Buddhism, connecting and encouraging gratitude among Buddhists worldwide.</p> Pashupati Nyaupane Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66286 Thu, 30 May 2024 00:00:00 +0000 Exploring Femnval Heusler Alloy: Physical, Mechanical, and Magnetic Properties https://www.nepjol.info/index.php/lecj/article/view/66288 <p>The structural, mechanical, electronic, and magnetic properties of equiatomic quaternary Heusler alloy FeMnVAl have been investigated using first-principles approach. This alloy shows ferromagnetic ground state structure with chemical stability indicating compound fulfills the criteria for synthesizing experimentally. The calculated values of Pugh’s index and Poisson’s ratio confirmed ductile nature of FeMnVAl. The investigation of band structure and density of states validates the behaviour of half[1]metallic ferromagnetism (HMFs), which follow the Slater-Pauling rule Mt = Zt - 24 and have a magnetic moment value of around 1 μB/f.u. Its features also allow for potential applications in the realm of spintronics devices and optoelectronics.</p> R. B. Ray, R. K. Rai, D. K. Yadav, G. C. Kaphle Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66288 Thu, 30 May 2024 00:00:00 +0000 Cost Comparison between RCC and Load Bearing Earthquake Resistant Residential Building in Terai Region https://www.nepjol.info/index.php/lecj/article/view/66290 <p>This study compares the cost-effectiveness of earthquake-resistant residential construction methods, focusing on RCC framed structures and load-bearing construction in Kanchan Rural Municipality, Rupandehi. Utilizing designs from the NRA design catalogue Volume-I, load-bearing designs were referenced, while RCC framed building designs were intentionally aligned with identical architectural plans, district rate and DUDBC norms for cost estimate, NBC Code 202 and 205 to show the features of earthquake resistant load bearing building and RCC building respectively. The analysis of Load Bearing and RCC framed buildings reveals a consistent trend where an increase in total area is associated with a rise in total construction cost. Interestingly, as the building size increases, there is a corresponding decrease in the cost per square foot. RCC framed structures assign a higher percentage to concrete work and lower weightage to brickwork compared to Load-Bearing buildings. In all building types, reinforced cement concrete construction is found to be costlier than load-bearing construction. An in-depth analysis has been conducted to examine the incremental costs associated with RCC construction compared to load-bearing construction across various house types, categorized by the number of stories. The findings provide valuable insights into the variations in RCC costs based on the number of stories, offering essential information for informed decision-making in construction methods and expenses.</p> S. Gyawali, B. R. Gyawali, R. Adhikari, S. P. Shrestha Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66290 Thu, 30 May 2024 00:00:00 +0000 Editorial https://www.nepjol.info/index.php/lecj/article/view/66280 <p>Not available.</p> K. N. Pandey Copyright (c) 2024 https://creativecommons.org/licenses/by-nc/4.0 https://www.nepjol.info/index.php/lecj/article/view/66280 Thu, 30 May 2024 00:00:00 +0000