Matching Items (19)
Filtering by
- Creators: Barrett, The Honors College
- Member of: Theses and Dissertations
Description
In the Spring 2013 and Fall 2013 semesters, a survey was taken of students enrolled in the principal undergraduate civil engineering structures course, CEE 321: Structural Analysis and Design, to assess both the prevalence of technology in the lives of the students and the potential ways this information could be use to improve the educational experience. The results of this survey indicated that there was a considerable demand for additional online resources outside of the formal classroom. The students of CEE 321 requested online lecture videos in particular, and so a project was launched at the start of the Spring 2014 semester to deliver a large body of academic instructional videos. In total, a collection of 30 instructional videos which covered all key topics covered over a semester of CEE 321 was published. The driving interest behind this creative project is to increase the level of understanding, comfort, and performance in students enrolled in the class. Although the quantity of initial student feedback is relatively small, the reactions are distinctly positive and reflect an improvement in understanding amongst the responding students. Over the course of upcoming semesters, qualitative and quantitative assessments of the impact of the videos are expected to provide a better indication of their quality and effectiveness in supporting student comprehension and performance in CEE 321. Above all, the success of these videos is directly tied to their ability to function as living, adaptable resources which are continuously molded and improved by student feedback.
ContributorsReasor, Drew Donn (Author) / Rajan, Subramaniam (Thesis director) / Hjelmstad, Keith (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2014-05
Description
It is the intent of this research to determine the feasibility of utilizing industrial byproducts in cementitious systems in lieu of Portland Cement to reduce global CO2 emissions. Class C and Class F Fly Ash (CFA and FFA, respectively) derived from industrial coal combustion were selected as the replacement materials for this study. Sodium sulfate and calcium oxide were used as activators. In Part 1 of this study, focus was placed on high volume replacement of OPC using sodium sulfate as the activator. Despite improvements in heat generation for both CFA and FFA systems in the presence of sulfate, sodium sulfate was found to have adverse effects on the compressive strength of CFA mortars. In the CFA mixes, strength improved significantly with sulfate addition, but began to decrease in strength around 14 days due to expansive ettringite formation. Conversely, the addition of sulfate led to improved strength for FFA mixes such that the 28 day strength was comparable to that of the CFA mixes with no observable strength loss. Maximum compressive strengths achieved for the high volume replacement mixes was around 40 MPa, which is considerably lower than the baseline OPC mix used for comparison. In Part 2 of the study, temperature dependency and calcium oxide addition were studied for sodium sulfate activated systems composed of 100% Class F fly ash. In the presence of sulfate, added calcium increased reactivity and compressive strength at early ages, particularly at elevated temperatures. It is believed that sulfate and calcium react with alumina from fly ash to form ettringite, while heat overcomes the activation energy barrier of fly ash. The greatest strengths were obtained for mixes containing the maximum allowed quantity of calcium oxide (5%) and sodium sulfate (3%), and were around 12 MPa. This is a very low compressive strength relative to OPC and would therefore be an inadequate substitute for OPC needs.
ContributorsTweedley, Shannon Elizabeth (Author) / Neithalath, Narayanan (Thesis director) / Mamlouk, Michael (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor) / School of Sustainable Engineering and the Built Environment (Contributor)
Created2014-05
Description
The Zero Tolerance Policy began appearing in secondary schools in the early 1990's. In the late 1980's, crimes committed by juveniles were at an all-time high. Fears that the violence would spill onto campus propelled lawmakers and school officials to take preventative measures. With the creation of the Gun-Free School Zone Act of 1990 and Gun-Free Act of 1994, any individual caught with a weapon on campus would be found in violation of the Act and be punishable by law. In addition to the Acts, School Resource Officers (SROs) became more prominent on campus. SROs were originally on campus to teach drug prevention programs, however SROs began to take on more of a disciplinary role to support the Zero Tolerance Policy. Furthermore, educators began turning towards SROs to handle less serious incidents such as behavioral outbursts. As SROs took a more active role, arrests among students started to rise. Many think this is a direct pathway to our criminal justice system, more commonly known as the school-to-prison pipeline. This pipeline disproportionately affects African Americans. This paper will examine the creation, aims and purpose of the Zero Tolerance Policy as well as what incidents helped create and install the policy. This paper will look at what the Zero Tolerance Policy looks like since it has been enacted. Moreover, there will be a focus on which students are affected the most and if this policy will lead to criminal justice contact in the future. Lastly, alternatives to the Zero Tolerance Policy will be discussed and if the policy can be improved or should it be eliminated.
ContributorsSoto, Tatyana E. (Author) / Sweeten, Gary (Thesis director) / Stolzenberg, Stacia (Committee member) / School of Social Work (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
The preceding paper analyzes the effects of UV radiation in plastic reinforcement and its effects on the fracture properties of cement-based materials. Three point tests were performed on notched beams, which called for the consideration of the Type II Size Effect. A comparison of the ductility of beams with and without polyethylene plastic powder reinforcement was done through the calculation of the fracture parameters Gf and cf, which represent the initial fracture energy and the characteristic length respectively. Although there was an observed increase in ductile behavior and properties in beams with polyethylene reinforcement, there did not seem to be a significant effect caused by the UV radiation. The hydrophilicity of the polyethylene powder was successfully increased through UV radiation and validated through water retention tests, which showed that the UV-treated polyethylene was retaining more water than the non-treated polyethylene, yet there was no extra increase in ductility of the cement beams compared to using non-treated polyethylene. The Type II Size Effect analysis was performed and compared to the stress analysis results of the experiment. For future research, it is recommended that a higher volume of polyethylene per 1000 grams of cement powder be used, as well as increasing the strength of the UV chamber to achieve a larger increase in the hydrophilicity of the polyethylene. Also, perhaps using more precise equipment to cut the notches in the beams would be helpful in ensuring that all specimens are identical and there is no error in notch depth caused by inaccurate use of the hacksaw or radial saw. Further experiments will be conducted.
ContributorsMardambek, Karim (Author) / Hoover, Christian (Thesis director) / Kazembeyki, Maryam (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This honors project combines the capstone component of CEE: 486 Integrated Civil Engineering Design and the Barrett, The Honors College requirement by combination of Due Diligence report and Street Improvements and Quantities, respectively.
Overall, this project report provides due diligence for a proposed development project, Bella Vida Estates, designed by Red Rock Engineering. This proposed project is located in the southwest portion of the City of Phoenix, in the Laveen Village community.
Bella Vida Estates is a proposed 560-acre mixed-use development whose composition includes single family residential, commercial, recreational park and greenspace, a preparatory charter school, and water storage and wastewater treatment facilities. The subject property is confined east of the new Loop 202 – South Mountain Freeway Extension, south of W. Dobbins Road, north of W. Elliot Road, and west of S. 51st Avenue.
The Due Diligence report is comprised of relevant information needed to develop these parcels of land, including a Property Overview, Land Development Plan, Development Considerations, Sustainability and Value Add components, and Costs.
To provide a more comprehensive due diligence package for the proposed project, street improvement quantities were estimated and then presented via a Construction Documents Exhibit and an Opinion of Probable Costs document.
The Construction Documents Exhibit was created according to City of Phoenix Standards using AutoCAD Civil 3D. The exhibit includes four sheets: Cover Sheet, Exhibit Sheet, Cross Sections, and Appendix. The purpose of this exhibit is to provide a visual representation of the streets to be improved upon, with proper hatching (based on type of cross section), dimensioning, and annotations to aid in presentation.
The Opinion of Probable Costs tabulates Onsite Development costs, which includes Paving, utilities in the form of Water, Sewer, and Storm, Earthwork/Grading, and Lump Sum costs. In addition to the onsite costs, Contingency, General Conditions, General Contractor Fee, and Taxes are included to provide a comprehensive overview of estimated costs.
Red Rock Engineering is excited to propose this promising, sustainable development as a place of residence, commerce, and recreation to the residents of the Laveen Village community.
Overall, this project report provides due diligence for a proposed development project, Bella Vida Estates, designed by Red Rock Engineering. This proposed project is located in the southwest portion of the City of Phoenix, in the Laveen Village community.
Bella Vida Estates is a proposed 560-acre mixed-use development whose composition includes single family residential, commercial, recreational park and greenspace, a preparatory charter school, and water storage and wastewater treatment facilities. The subject property is confined east of the new Loop 202 – South Mountain Freeway Extension, south of W. Dobbins Road, north of W. Elliot Road, and west of S. 51st Avenue.
The Due Diligence report is comprised of relevant information needed to develop these parcels of land, including a Property Overview, Land Development Plan, Development Considerations, Sustainability and Value Add components, and Costs.
To provide a more comprehensive due diligence package for the proposed project, street improvement quantities were estimated and then presented via a Construction Documents Exhibit and an Opinion of Probable Costs document.
The Construction Documents Exhibit was created according to City of Phoenix Standards using AutoCAD Civil 3D. The exhibit includes four sheets: Cover Sheet, Exhibit Sheet, Cross Sections, and Appendix. The purpose of this exhibit is to provide a visual representation of the streets to be improved upon, with proper hatching (based on type of cross section), dimensioning, and annotations to aid in presentation.
The Opinion of Probable Costs tabulates Onsite Development costs, which includes Paving, utilities in the form of Water, Sewer, and Storm, Earthwork/Grading, and Lump Sum costs. In addition to the onsite costs, Contingency, General Conditions, General Contractor Fee, and Taxes are included to provide a comprehensive overview of estimated costs.
Red Rock Engineering is excited to propose this promising, sustainable development as a place of residence, commerce, and recreation to the residents of the Laveen Village community.
ContributorsGrgantov, William (Author) / Fox, Peter (Thesis director) / Farrell, Trey (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
As a student and then an Undergraduate Teaching Assistant (UGTA), I have had the opportunity to personally witness the learning process of both myself and approximately 75 additional incoming Civil Engineering students taking the Mechanics courses after me. While watching the student learning process as an UGTA, I realized that there were consistent points of confusion amongst the students that the teaching staff could not efficiently communicate with the electronic or physical classroom materials available. As a physical learner, I am able to learn more comprehensively if I have a physical model to manipulate, and often found myself in the position of wanting to be able to physically represent and manipulate the systems being studied in class.
ContributorsCamillucci, Allyson Nicole (Co-author, Co-author) / Hjelmstad, Keith (Thesis director) / Chatziefstratiou, Efthalia (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Gathering the necessary information required to tackle traffic congestion problems is generally time consuming and challenging but is an important part of city planners’ work. The purpose of this paper is to describe the methodology used when analyzing potential solutions for the Arizona State Route 89A and Highway 179 roundabout in Sedona, Arizona; which is currently experiencing significant congestion. The oversaturated condition is typically applied to signalized intersections but its application to roundabouts requires further exploration for future management of similar transportation systems. The accompanying Quick Estimation and Simulation model (QESM) spreadsheet was calibrated using an iterative process to optimize its level of adaptability to various scenarios. This microsimulation modeling program can be used to predict the outcome of possible roadway improvements aimed at decreasing traffic congestion. The information provided in this paper helps users understand traffic system problems, as a primary to visual simulation programs.
ContributorsBrunetti, Isabel (Co-author) / Tran, Adam (Co-author) / Zhou, Xuesong (Thesis director) / Carreon, Adam (Committee member) / Civil, Environmental and Sustainable Eng Program (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
With a rapidly decreasing amount of resources for construction, wood and bamboo have been suggested as renewable materials for increased use in the future to attain sustainability. Through a literature review, bamboo and wood growth, manufacturing and structural attributes were compared and then scored in a weighted matrix to determine the option that shows the higher rate of sustainability. In regards to the growth phase, which includes water usage, land usage, growth time, bamboo and wood showed similar characteristics overall, with wood scoring 1.11% higher than bamboo. Manufacturing, which captures the extraction and milling processes, is experiencing use of wood at levels four times those of bamboo, as bamboo production has not reached the efficiency of wood within the United States. Structural use proved to display bamboo’s power, as it scored 30% higher than wood. Overall, bamboo received a score 15% greater than that of wood, identifying this fast growing plant as the comparatively more sustainable construction material.
ContributorsThies, Jett Martin (Author) / Ward, Kristen (Thesis director) / Halden, Rolf (Committee member) / Industrial, Systems & Operations Engineering Prgm (Contributor) / Civil, Environmental and Sustainable Eng Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
The following report followed three separate construction crews at a construction site at ASU and performed labor productivity analysis to quantitatively measure the efficiency of the workers performing specific tasks. These crews were tasked with electrical wiring, concrete pouring, and drywall sanding. Crew balance measured the down time of individual crew members compared to the overall time spent on a task, and the results of these observations were calculated, and suggested improvements given.
ContributorsScollick, Evelyn (Author) / Grau, David (Thesis director) / Lamanna, Anthony (Committee member) / School of Film, Dance and Theatre (Contributor) / Mechanical and Aerospace Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
The loading provisions were compared between the ASCE 7-10 standard and ASCE 7-16 standard. Two different structural models were considered: an office building with a flat roof located in Tempe and a community center with a gable roof located in Flagstaff. The following load types were considered: dead, live, wind, and snow loads. The only major changes between the standards were found in the wind load calculations. The winds loads were reduced by approximately 22% for the office building in Tempe and 37% for the community center in Flagstaff. A structural design was completed for the frame of the Flagstaff community building. There was a 19% reduction in cost from the design using ASCE 7-10 provisions compared to the design utilizing ASCE 7-16 provisions, leading to a saving of $7,599.17. The reduction in loading, and subsequently more cost-effective design, is attributed to the reduction in basic wind speed for the region and consideration of the ground elevation factor. The introduction of the new ASCE 7-16 standard was met with criticism, especially over the increase in specific coefficients in the wind load and seismic load chapters. Proponents of ASCE 7-16 boast that the new chapter on tsunami loads, new maps for various environmental loads, and a new electronic hazard are some of the merits of the newest standard. Others still question whether the complexity of the provisions is necessary and call for further improvements for the wind and seismic provisions. While tension exists in the desire for a simple standard, ASCE 7-16 prioritizes in having its provisions provide economical and reliable results. More consideration could be devoted to developing a more convenient standard for users. Regardless, engineering professionals should be able to adapt alongside newly developed practices and newly discovered data.
ContributorsCajegas, Cyam Joshua Dato (Author) / Rajan, Subramaniam (Thesis director) / Neithalath, Narayanan (Committee member) / Civil, Environmental and Sustainable Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05