Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Civil and Environmental Engineering (9)
- Civil Engineering (6)
- Structural Engineering (4)
- Geotechnical Engineering (2)
- Service Learning (2)
-
- Social and Behavioral Sciences (2)
- Sociology (2)
- Transportation Engineering (2)
- Chemistry (1)
- Computer-Aided Engineering and Design (1)
- Construction Engineering and Management (1)
- Earth Sciences (1)
- Environmental Chemistry (1)
- Materials Science and Engineering (1)
- Mechanical Engineering (1)
- Optics (1)
- Other Earth Sciences (1)
- Physical Sciences and Mathematics (1)
- Physics (1)
- Structural Materials (1)
- Keyword
-
- Service learning (2)
- 1993 AASHTO (1)
- Applied sciences (1)
- Asphalt (1)
- Asphalt Concrete (1)
-
- Atmospheric monitoring (1)
- BCSA cement (1)
- C-S-H (1)
- CSA cement (1)
- Citric acid (1)
- Civil engineering (1)
- Cold In-place recycling (1)
- Compactability (1)
- Compaction (1)
- Compression Test (1)
- Concrete (1)
- Damage Investigation (1)
- Earthquake Engineering (1)
- Emulsified asphalt (1)
- Energy Levels (1)
- Ettringite (1)
- Finite Element Method (1)
- Floor (1)
- Flooring (1)
- Flooring materials (1)
- Ground Based (1)
- Harvard Miniature Test (1)
- Low Cost (1)
- Modified Proctor Test (1)
- Open Path (1)
Articles 1 - 10 of 10
Full-Text Articles in Entire DC Network
Development Of A Ground-Based Aerial-Tracking Instrument For Open-Path Spectroscopy To Monitor Atmospheric Constituents, Haden Hodges
Development Of A Ground-Based Aerial-Tracking Instrument For Open-Path Spectroscopy To Monitor Atmospheric Constituents, Haden Hodges
Civil Engineering Undergraduate Honors Theses
A ground-based aerial-tracking instrument, known as the Ground Tracker, designed to provide spectral data to quantify greenhouse gases is under development. The Ground Tracker includes an Optical System including a high power rifle scope, video camera, and spectrometer used to locate an active light source from the Emitter, and collect spectral data by utilizing an actuating mirror. The implementation of this instrument could be made low cost by utilizing existing weather balloon infrastructure to allow the Emitter to be placed into the lower stratosphere. The recovery of the emitter will be possible by tracking the GPS coordinates. Weather balloon instrument …
Displacement Derived Energy Levels For Harvard Miniature Compaction, Ana Laura Errigo, Julia Loshelder
Displacement Derived Energy Levels For Harvard Miniature Compaction, Ana Laura Errigo, Julia Loshelder
Civil Engineering Undergraduate Honors Theses
Previously, the amount of energy provided by the Harvard Miniature tamper was adjusted by changing the number of blows per lift or the number of lifts or was not adjusted at all. However, this research was conducted to investigate the effect of adjusting the displacement of the spring (increased or decreased) to change the potential energy of the spring and therefore change the compacive effort with a specific type of soil. Thus, the objective was to match the compaction energies using the Harvard miniature method with the compaction energies obtained using the Proctor method. Specifically, the goal was to show …
Development Of A Mechanical Device For Measuring Connection Rotations During Seismic Loading, Garrett Tatum
Development Of A Mechanical Device For Measuring Connection Rotations During Seismic Loading, Garrett Tatum
Civil Engineering Undergraduate Honors Theses
This engineering design project sought to design a cheap and easy-to-use sensor to monitor seismic connection rotations in steel buildings during earthquakes by using a linear ratchet mechanism. The idea for the project goes against the mainstream of research that is seeking to develop complex digital networks for monitoring structures in earthquake regions. Whereas many modern sensor networks require high-cost, professionally maintained digital networks, an analog sensor could provide much of the same information at a fraction of the cost, allowing sensors to be more widely utilized, particularly in developing countries. This project required an iterative engineering design process to …
Turbulent Effects On Building Pressure Using A Two-Dimensional Finite Element Program, Jonese Woods
Turbulent Effects On Building Pressure Using A Two-Dimensional Finite Element Program, Jonese Woods
Civil Engineering Undergraduate Honors Theses
Much of the knowledge about building aerodynamics today was obtained from physical testing like wind tunnel testing. Physical testing is time-consuming and very expensive. As a result, computational methods like the finite element method are being explored for use in building aerodynamics. Despite several years of research, there is still not a clear understanding of the peak pressure on buildings due to turbulence. Many of the research thus far has focused on comparing different computational methods. However, much work is needed in understanding the capability of the individual methods. In this work, a two-dimensional finite element program is used to …
Probable Maximum Flood Estimation Using A Statistical Approach And A Storm Model Approach For A Watershed In Southern St. Vincent, Khandi Gordon
Probable Maximum Flood Estimation Using A Statistical Approach And A Storm Model Approach For A Watershed In Southern St. Vincent, Khandi Gordon
Civil Engineering Undergraduate Honors Theses
With the increase in frequency and severity of flooding due to natural events, there is an increased need for flood studies in order to mitigate the effects of flooding. Some of the most vulnerable countries to flooding are Small Island Developing States (SIDS). These countries face many common development challenges, including geographic and economic isolation, limited resources, environmental fragility, high costs of transportation and energy, and vulnerability to climate change and natural disasters. This project focuses on estimating the probable maximum flood (PMF) for a watershed in a SIDS. To find PMF, the probable maximum precipitation (PMP) is needed. Two …
Tension Splitting Strength Of Bcsa Concrete Cylinders, Andrew Steven Deschenes
Tension Splitting Strength Of Bcsa Concrete Cylinders, Andrew Steven Deschenes
Civil Engineering Undergraduate Honors Theses
The focus of this research was to compare the tension splitting strength (TSS) of belitic calcium sufloaluminate (BCSA) cement concrete to tensile strength predicted by the American Concrete Institute (ACI) and to similarly proportioned portland cement (PC) concrete. BCSA is a rapid-setting cement with higher early strength, higher ettringite content, and lower calcium silicate hydrate (C-S-H) content than PC. PC and BCSA cement concrete cylinders were broken at different ages in both uniaxial compression and TSS. It was found that BCSA had a similar TSS to both the ACI prediction and PC TSS, but the results require further testing for …
Structural Design Guidelines For Pervious Concrete Pavements, April Smith
Structural Design Guidelines For Pervious Concrete Pavements, April Smith
Civil Engineering Undergraduate Honors Theses
Pervious pavements have gained popularity in recent years as the transportation industry focuses on sustainability and environmental impact. This research investigated the structural design of pervious concrete pavements. There is no standard design method; therefore, the goal was to lessen ambiguity surrounding the use of pervious concrete for pavement structures. By characterization of the rigid pavement design equation from the 1993 AASHTO Structural Design Guide for Design of Pavement Structures through laboratory exploration and review of existing literature, a guide was created to assist engineers in the design of pervious concrete pavements.
Asphalt Concrete As A Flooring Material, Aleinys Villarreal
Asphalt Concrete As A Flooring Material, Aleinys Villarreal
Civil Engineering Undergraduate Honors Theses
The need for having a good quality flooring has become something very important in order to enhance people’s spaces and living lifestyle. Some of the most common tile materials are cork, vinyl, concrete, and ceramic. While these four materials mentioned before are still capable materials, asphalt concrete has a distinct pattern that may be an attractive alternative to the standard tile types. To try and find solutions to these problems and give people another material option, asphalt concrete was evaluated as a flooring material.
The reason why asphalt concrete could have this new application is based on the outstanding properties …
Exploring The Compactability And Workability Of Rap, Elizabeth Poblete
Exploring The Compactability And Workability Of Rap, Elizabeth Poblete
Civil Engineering Undergraduate Honors Theses
Despite its economic and environmental benefits, the widespread use of Cold In-Place Recycling (CIR) is currently inhibited, to some degree, by a lack of laboratory testing and evaluation, specifically in the areas of compactability and workability of the reclaimed mixture stabilized with asphalt emulsion. The purpose of this study was to explore the influence of admixtures in CIR using modified Superpave Gyratory Compactor (SGC) compaction metrics. The primary stabilization technique considered in this research was asphalt emulsion, an application in which asphalt binder is suspended in water, allowing it to be stored and applied at ambient temperature, rather than the …
The Influence Of Citric Acid On Setting Time And Temperature Behavior Of Calcium Sulfoaluminate-Belite Cement, Edgar Soriano
The Influence Of Citric Acid On Setting Time And Temperature Behavior Of Calcium Sulfoaluminate-Belite Cement, Edgar Soriano
Civil Engineering Undergraduate Honors Theses
Today the need to opt for alternative cementitious materials is growing due to environmental reasons and construction time frames that portland cement cannot always satisfy. Calcium Sulfoaluminate (CSA) cements are a strong candidate to supplement or replace portland cement in the construction field for certain applications. In the United States, CSA cement has been limited mostly to pavement repairs because of its rapid initial setting time. The chemical compound responsible for this phenomenon is the alumina. This compound and sulfate are present in larger proportions compared to portland cement. The purpose of this research is to study how the use …