Browsing by Department "Civil Engineering"
Now showing items 161-180 of 394
Evaluation of Self-Consolidating Concrete for Use in Prestressed Girder Applications
(2005-12-15)
Self-consolidating concrete (SCC) is a highly flowable, yet cohesive, concrete that is able to fill formwork and completely encapsulate any reinforcement without the need for external vibration. The use of SCC may help ...
Evaluation of Semi-Adiabatic Calorimetry to Quantify Concrete Setting
(2009-12-14)
Although setting is routinely measured in practice, current methods for determining concrete setting have been criticized for being impractical, arbitrary, and lacking correlation to field data. In recent years attempts ...
Evaluation of Soil Effects on Soil Erosion on Off-Road Vehicle Trails using WEPP
(2008-05-15)
Erosion and sediment loss from the use of off-road vehicles (ORV) is an escalating problem on national forest lands. The increasing number of ORV riders coupled with decreasing riding areas has caused the United States ...
An Evaluation of the Alabama Service and Assistance Patrol with Respect to Mobility-Related Benefits
(2007-05-15)
Freeway Service Patrols are one of the more commonly used incident management tools employed to reduce non-recurring congestion through quick response to accidents and other incidents along congested freeway segments. ...
An Evaluation of the Bubble Point Method for Determining Pore Size Distributions of Nonwoven Geotextiles
(2013-05-16)
Nonwoven geotextiles are commonly used in soil filtration applications. A geotextile filter must retain soil particles, while allowing permeability to water and being resistant to clogging. Geotextile filter performance ...
Evaluation of the Effect of Crumb Rubber Properties on the Performance of Asphalt Binder
(2013-03-07)
The purpose of the research was to determine the most influential factors of crumb rubber that affect the performance characteristics of crumb rubber modified binder. The first phase of the study required the characterization ...
Evaluation of the Maturity Method to Estimate Concrete Strength
(2005-12-15)
The strength of a newly constructed concrete structure or roadway is critically important to contractors and engineers who must decide when to safely allow construction loads, prestressing operations, or opening to traffic ...
Evaluation of the Maturity Method to Estimate Concrete Strength in Field Applications
(2006-05-15)
Estimating the strength of concrete is essential to contractors and engineers to allow concrete construction operations to proceed safely and expediently. The maturity method is a technique that allows the in-place concrete ...
Evaluation of the Use of Reclaimed Asphalt Pavement in Stone Matrix Asphalt Mixtures
(2007-12-15)
Mixtures that contain reclaimed asphalt pavement (RAP) can typically perform as well or better than conventional HMA mixes. However, use of RAP has generally not been extended to stone matrix asphalt (SMA) production. This ...
An Evaluation of the Use of Self-Consolidating Concrete (SCC) for Drilled Shaft Applications
(2005-08-15)
In drilled shaft construction, the recent development of sophisticated techniques for integrity and load testing has lead to the ability to assess the quality of drilled shaft foundations in terms of integrity and load ...
Evaluation of Toxicity Levels and Cytotoxicity Mechanisms of Corexit 9500
(2013-07-15)
The 2010 British Petroleum (BP) oil spill in the Gulf of Mexico has raised many ecological and health concerns. BP predominately used Corexit9500A to disperse crude oil in the Gulf of Mexico to prevent shoreline contamination. ...
Evaluation, Local Calibration, and Validation of Performance Prediction Models in AASHTOWare Pavement ME Design Software Using NCAT Test Track Data
(2017-04-26)
The AASHTOWareTM Pavement ME Design software was adopted by the American Association of State Highway and Transportation Officials (AASHTO) for structural pavement designs. The performance prediction models in the software ...
Experimental and Modeling Investigation of Arsenate adsorption on Synthetic Iron-coated sand
(2011-04-21)
Arsenic is an environmental contaminant of worldwide concern due its high toxicity and presence in groundwater aquifers. Adsorption of arsenic onto metal-oxides is an important phenomenon that locally controls the transport ...
Experimental and Numerical Analysis of Groundwater-Surfacewater Interaction in Horizontal and Sloping Unconfined Aquifers.
(2009-07-15)
We investigated the interaction between the water moving from an unconfined aquifer and a surfacewater body. This interaction can occur during or after a rainfall event, which can cause the groundwater table to change. We ...
Experimental and Numerical Analysis of Variable-density Flow and Transport Scenarios
(2008-12-15)
Saltwater contamination has received a lot of attention in the past few years with natural disasters such as tsunamis and hurricanes causing widespread groundwater pollution. Groundwater modeling of saline contaminant ...
Experimental Evaluation of the Static Strength and Ductility of Large Diameter Shear Studs in Composite Bridge Construction
(2013-04-19)
A number of bridges in the United States consist of steel girders with concrete decks attached via shear studs which will require replacement in the future. With a growing interest in rapid deck replacement for bridges ...
An Experimental Investigation on Air Pocket Entrapments Caused by Shear-Flow Instabilities in Rapid-Filling Pipes
(2019-08-08)
Rapid filling conditions in closed conduits, such as the case of sewer filling during intense rain events, can lead to air pocket formation. Such formation creates many operational issues in urban water systems, including ...
Experimental Study on the Compression of Entrapped Air Pockets in Stormwater Tunnel Systems
(2012-07-16)
Stormwater storage tunnels may undergo rapid filling pipe conditions during extreme rain events. Such conditions are relevant as adverse conditions may develop, such as surging due to entrapment and compression of entrapped ...
Experimental Testing and Analytical Modeling of Driven Steel Pile Bridge Bents
(2015-10-14)
One of the most common bridge types in Alabama is the multi-span bridge with precast girders and intermediate bents consisting of driven steel piles and a reinforced concrete cap. Due to its common use, effective analysis ...
Experimental Testing of a Rotational Friction Connection for Use with Precast Concrete Cladding Panels in Metal Building Systems
(2017-11-27)
Lightweight clad metal building systems have been shown to exhibit excellent performance in seismic events; however, metal building systems clad in masonry or precast concrete panels (hard walls) have been shown through ...