Civil Engineering Commons^™

Automated Reinforcement In Construction 3d Printing: An Investigation Of Mechanical And Macrostructural Performance Of Reinforced 3d-Printed Structures, Hassan Ahmed

LSU Master's Theses

Conventional construction with steel reinforcement is widely accepted and utilized worldwide for its proven strength, durability, design flexibility, cost-effectiveness, and due to available standards and design codes. Integration of reinforcement in construction 3D printing, however, presents multi-faceted challenges that may influence the structural properties of printed components and have hindered the widespread adoption of reinforced 3D-printed structures. This study explored two complementary reinforcement techniques, namely, steel fibers and threaded reinforcement, to reinforce 3D-printed structures. This study explored both the fresh and hardened properties of 3D-printed mixtures that contain very high steel fiber dosages of up to 2.5% by volume. Additionally, …

Streamflow Reconstructions Using Tree-Ring-Based Paleo Proxies For The Sava River Basin (Slovenia), Glenn Tootle, Abdoul Oubeidillah, Emily Elliott, Giuseppe Formetta, Nejc Bezak

Civil Engineering Faculty Publications

The Sava River Basin (SRB) extends across six countries (Slovenia, Croatia, Bosnia and Herzegovina, Serbia, Albania, and Montenegro) and is a major tributary of the Danube River (DR). The Sava River (SR) originates in the alpine region of Slovenia, and, in support of a Slovenian government initiative to increase clean, sustainable energy, multiple hydropower facilities have been constructed within the past ~20 years. Given the importance of this river system for varying demands, including energy production, information about past (paleo) drought and pluvial periods would provide important information to water managers and planners. Seasonal (April–May–June–July–August–September—AMJJAS) streamflow data were obtained for …

Designing Local Food Systems: Results From A Three-Year Pilot, Daniel B. Oerther, Sarah Hultine-Massengale, Sarah E. Oerther

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A Redesigned Course Employing Blended Delivery, a Flipped Format, and Modified Mastery Learning with a Buffet Approach to Assign Final Grades Was Used to Teach Engineering Design to Approximately 25 Dual-Level (Juniors, Seniors, and First Year Graduate) Students Pursuing Baccalaureate Degrees in Environmental, Civil, or Architectural Engineering or a Graduate Degree in Environmental Engineering. the Course Replaced a Traditional Pedagogical Format that Used Lecture-Discussion Augment with Extended Homework Assignments and a Semester-Long Design Project, Which Focused on the Content of Designing a Wastewater Treatment Plants. the Redesigned Course Uses the Engineering Design Process to Improve the Local Food System, Which …

Environmental Engineering Division Panel Discussion: Exploring Career Paths In Academia - Learn, Network, And Thrive, Fethiye Ozis, David Sanchez, Matthew Alexander, Daniel B. Oerther, Shannon L. Isovitsch Parks

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Environmental Engineering Division Panel Will Provide an Opportunity to Learn from and Connect with Faculty and Leaders in the Environmental Engineering Field. Drawing on Expertise from the Premier Academic Organizations Associated with Environmental Engineering: The American Academy of Environmental Engineers and Scientists (AAEES), the Association of Environmental Engineering and Science Professors (AEESP), and the American Society of Civil Engineers (ASCE). the Panel is for All Graduate Students, Post-Docs and Early Career Faculty Who Are Interested in Receiving Advice and Networking to Advance their Careers in Environmental Engineering. the Panel Will Focus on Sharing the Experiences and Best Practices for …

Panel Discussion: Ideas For An Enjoyable And Productive Sabbatical, Jean M. Andino, David V.P. Sanchez, Michelle Marincel Payne, John D. Carpinelli, Shannon L. Isovitsch Parks, Daniel B. Oerther

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Navigating the Sabbatical Process and Deciding on a Productive Activity Can Be Challenging. a Sabbatical Can Take Many Different Forms Depending on Career Goals, Interests, and Institution. the Purpose of This Panel Discussion is to Provide Faculty Who Have Yet to Conduct a Sabbatical with Ideas of Activities and the Process. a Variety of Personal Experiences Will Be Presented of Sabbatical Activities that Were Enjoyable and Productive. These May Include Sabbaticals Focused on Independent Engineering Research, Engineering Education Research, Development of Classes or Programs, Industry or Government Collaboration, And/or Travel. Discussion Topics Will Also Include Process Requirements of Applying, Conducting, …

Workshop Result: Environmental Engineering Faculty Learning Boyer's Model Of Scholarship, Daniel B. Oerther, Jody Squires, Danny Willis

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

As Part of the 2021 (Delayed Until 2022 Due to COVID) Biennial Conference of the Association of Environmental Engineering and Science Professors (AEESP), a Preconference Workshop on the Topic of Ernst Boyer's Four-Pillar Model of Academic Scholarship in Higher Education (I.e., Discovery, Integration, Engagement, and the Science of Teaching and Learning) Was Delivered to 32 Workshop Participants. the Workshop Had Three Objectives, namely: 1) Raising Awareness to Boyer's Model of Scholarship in Higher Education; 2) Applying Boyer's Model to Evaluate Participants' Own Work; and 3) Leading Institutional Change by Sharing Boyer's Model Back Home. to Achieve These Objectives, Four Activities …

Engagement In Practice: Promoting Environmental Health Literacy To Raise Awareness Of Antibiotic Resistance, Daniel B. Oerther

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Process of How to Engage with Communities (I.e., Community Engagement) is an Important Skill for Engineers to Acquire, and the Skill is Well Suited to Experiential Learning (I.e., Learning through Doing). to Educate Engineers to Perform Community Engagement, a Module Was Developed and Incorporated as Part of Three Different Engineering Courses, namely: 1) Science, Technology, Engineering, Art, and Math (STEAM) Diplomacy (Dual-Level Graduate and Undergraduate, Elective); 2) Public Health Engineering (Dual-Level Graduate and Undergraduate, Elective); and 3) Biological Principles of Environmental Engineering (Graduate Only, Required Course). These Courses Were Offered at the Missouri University of Science and Technology and …

Course Strategy: Threading Triple Bottom-Line Sustainability Across Multiple Courses, Daniel B. Oerther

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Instructional Environment for This Study Was the Missouri University of Science and Technology. Two Courses Offered through the Department of Civil, Architectural, and Environmental Engineering Are Discussed, specifically: CArE 2601 Fundamentals of Environmental Engineering; and CArE 5605 Environmental Modeling. the Pedagogical Approach to Delivery of Both Courses Included Blended Content Delivery, a Flipped Classroom, and Modified Mastery Learning. the Approach to Instruction and Technology Included Conceptual Understanding Before Spreadsheet Modeling to Verify Concepts through Application. the Course Content Focused Upon the Topic of "Triple Bottom Line Accounting" (Also Known as "Full Cost Accounting" or "True Cost Accounting"). This Content …

Did The Nae Changing The Conversation Campaign Introduce The Care Penalty Into Engineering?, Daniel B. Oerther

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Over the Past Twenty Years, the National Academy of Engineering of the United States of America Undertook a Campaign Entitled, "Changing the Conversation." Explicit Intentions of the Campaign Included Raising Public Awareness of Engineering, Increasing the Total Number of Engineers, and Recruiting Historically Underrepresented Groups to Join Engineering. in Particular, Marketing Efforts Developed Inclusive "Tag Lines" Aimed to Diversify Groups Enrolled in Engineering and Increase the Diversity of the Professional Engineering Workforce. While Changes in Demographics Were Disappointing for Some Groups (I.e., Little to No Change Was Observed for People of Color), Generally, the Campaign Has Been Considered Moderately Successful …

Characteristics And Hydraulic Behavior Of Adsorptive Media For Use In Permeable Reactive Barriers, Shelby Rocha

USF Tampa Graduate Theses and Dissertations

The Cargill ditch is located on the property of Se7en Wetlands, a 1600-ac treatment wetland system in Lakeland, Polk County, Florida. The Se7en Wetlands property was previously utilized for phosphate mining prior to the construction of the system. Nonpoint nutrient sources derived from remnants of abandoned phosphate mines – known as “legacy phosphorus” – become mobilized by stormwater runoff and impair surface water bodies by promoting harmful algal blooms (HABs). Thus, the Cargill ditch likely conveys nutrient rich flow resulting from legacy phosphorus and is thought to be one contributing factor in the occurrence of HABs within the treatment wetland …

Spatial Autocorrelation Analysis For Construction Sites, Raghda Moharram

Theses and Dissertations

This study investigates the usefulness of spatial autocorrelation analysis in construction sites. The objective is to provide construction managers with insights into the site's performance, identify potential areas for improvement, and ultimately lead to cost and time savings and improved project quality. To achieve this objective, the study identifies significant spatial autocorrelation variables for various applications in construction and analyzes their impact on the site's efficiency and potential problems.

The potential applications where spatial autocorrelation analysis could be useful were identified, including schedules, progress, earned value measures, safety incidents, workers' densities, equipment densities, energy expenditure, and quality non-conformity. A framework …

Impact Of Traffic On Air Pollution In A Mid-Sized Urban City During Covid-19 Lockdowns, Nathan Hay, Otito Onwuzurike, Somesh Roy, Patrick J. Mcnamara, Margaret L. Mcnamara, Walter M. Mcdonald

Civil and Environmental Engineering Faculty Research and Publications

In this study, we evaluated the changes in air pollutant concentrations around Milwaukee, WI, during and after lockdown due to the COVID-19 pandemic for a period of 126 days. Measurements of particulate matter (PM₁, PM_2.5, and PM₁₀), NH₃, H₂S, and O₃ + NO₂, were made on a 74-km route of arterial and highway roads from April to August 2020 using a Sniffer 4D sensor mounted to a vehicle. Traffic volume during measurement periods were estimated from smartphone-based traffic data. From lockdown (March 24, 2020–June 11, 2020) to …

Investigation Of Natural Pozzolans: Analyzing The Practicality Of Natural Pozzolans As A Partial Substitute For Cement In Grout Production, Jadyn I. Breien, Andrew J. Baro, Logan T. Marino

Architectural Engineering

This senior project aims to investigate whether natural pozzolans are more sustainable than fly ash and a sufficient substitute for cement in the production of grout. By following the intent of the ASTM (American Society of Testing and Materials) standards, a conclusion will be made to determine if natural pozzolans can contribute comparable strength in compression. The objective is to prove that natural pozzolans should be utilized in the production of grout rather than alternatives such as fly ash because it can provide similar strength while being more economical and more sustainable.

Filters For Fiji: A Modified Cracker Box Biosand Filter For Rural Fiji, Geneva Newell, Cameron Lowrey, Thomas Burt, Lexie Caterine

Civil and Environmental Engineering

Water quality remains a major issue throughout rural Fiji, as current solutions rely on outside organizations providing money or technology. The goal of Filters for Fiji’s research was to develop a sustainable water filtration method for the people of rural Fiji, through ethnographic and biological research. In order to be sustainable, the filter had to be inexpensive (less than USD$15), simply built and maintained, and suitable for the end-user. The driving question of the research was: can a plastic, modified biosand filter be constructed from materials that could be sourced locally in rural Fijian communities? To answer this question, feedback …

Establishing A Scootability Index To Prioritise Road And Footway Infrastructure Improvements For Smooth And Safe E-Scooter Usage, Nadia Jalal Maksoud

Theses

The intensifying use of electric scooters as a form of transportation calls for new infrastructure assessment methods to improve the smoothness and safety of facilities in which these devices are ridden. Despite the extensive research on the infrastructure requirements of bicycles, there is a dearth of studies on electric scooters. This study aims to define the main infrastructure requirements for electric scooters in an urban context. A mixed-methods approach is employed combining quantitative and qualitative data collection and regression analysis. To provide a basis for a so-called multi-dimensional “scootability” index that covers all aspects pertaining to the safety and smoothness …

Enhancing Construction Safety Training Of Bridges Using Augmented Reality And Virtual Reality, Mohamed Sherif Elrifaee

Theses and Dissertations

Infrastructure development projects are widely acknowledged as some of the most complex and challenging projects to undertake. The construction of bridges, in particular, has proven to be a significant safety risk for workers, with a considerable number of accidents reported on construction sites. There is a lack of comprehensive training programs specifically designed for bridge construction safety, and only a few studies have explored the use of both AR and VR to enhance safety training in construction. As such, this research aims to improve the safety of bridge construction sites through the implementation of Augmented Reality (AR) and Virtual Reality …

The Feasibility Of Using High Strength Stainless Steel In Pre-Stressing Applications, Rana Khaled Morsy

Theses and Dissertations

This paper evaluates the applicability of using a corrosion-resistant reinforcement high strength stainless steel strands (HSSS) Duplex 2205 in pre-stressing applications. HSSS-Duplex 2205 is a high performance steel which can be used as an alternative to the conventional carbon steel strands, for a better service life. The high strength and corrosion resistance of the material allows it to show its impressive performance in marine structural applications. Although the use of HSSS-Duplex 2205 could be initially costly; however, the improved durability and extended service life of the concrete structures using HSSS would require less life-cycle cost. Although there is a gap …

Integration Of Environmental Sustainability And Decision Making: Case Studies Of Civil Infrastructure, Sussan Moussavi

Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research

Sustainable development is important in the planning and design of critical civil infrastructure systems. However, decision making related to these systems currently lacks meaningful sustainability considerations. To fill this gap, this research explores the life cycle impacts of wastewater and energy infrastructure using case studies, life cycle assessment methodologies, and stakeholder discussions. Environmental and economic impacts, which are more commonly quantified, as well as more difficult to quantify societal factors, are explored. The goal of this research is to help inform decision making and facilitate the consideration of the three pillars of sustainability (e.g., economic, environmental, and social) during the …

Exploring Machine Learning In Deep Foundation And Soil Classification Application, Mohammad Moontakim Shoaib

LSU Master's Theses

The applicability of several Machine Learning (ML) models was explored in this research to predict the ultimate capacity and load-settlement behavior of axially loaded single-driven piles from Cone Penetration Test (CPT) data. Additionally, a common CPT-based soil behavior type (SBT) classification system was reproduced using those ML models. Eighty static pile load tests and corresponding CPT data close to those pile locations were collected from 34 sites in Louisiana for the deep foundation application. On the other hand, 70 CPT soundings were taken in 14 different parishes across Louisiana for the soil classification application. Specifically, tree-based ML models such as …

Using Bim To Increase The Efficiency Of Energy-Driven Retrofitting Projects, Anne Grego, Shannon Chance, Barry Mcauley

Conference Papers

The building sector is responsible for nearly 40% of global energy consumption. Many existing buildings have poor thermal insulation and low energy performance, hindering sustainability goals. Energy-driven building retrofitting could address this issue and implementing Building Information Modelling (BIM) in retrofitting can reduce process time, costs, and waste associated with such undertakings. Yet, there is a lack of research and insufficient guidance for implementing BIM in energy-driven retrofitting. A BIM framework is presented to enhance decision-making processes during retrofitting. The aims of this study were to (1) identify BIM technologies and methodologies that could address existing barriers and improve efficiency …