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Construction Site Utilization Planning Best Practices
(2014-03-31)
Construction site utilization planning has implications for project safety, construction efficiency, scheduling, and budgetary performance of a project. An important aspect not identified in past research efforts are the ...
Laboratory Scour Testing of Hard Cohesive Soils in Alabama
(2014-01-09)
Establishing scour parameters in order to estimate the loss of soil adjacent to bridge piers is a crucial element in the design of highway bridges crossing over rivers and streams. Although there are numerous design criteria ...
Investigation of the Use of Steel Intermediate Diaphragms and Temporary Bracing Alternatives for Prestressed Concrete Girder Bridges
(2014-04-23)
Common in bridge construction today, diaphragms are placed transverse to the girders, connecting adjacent girders to provide stability and transmit loads. Diaphragms are defined as either end diaphragms – used at the ends ...
Understanding and Estimating Travel Times of Overland Flows on Planes
(2014-04-23)
Estimating travel time of overland flow is one of the important studies in hydrology. A quasi-two-dimensional overland flow model (OFM) with the options of dynamic, diffusion, and kinematic wave approximation integrated ...
Proposed Improvements to Overlay Test for Determining Cracking Resistance of Asphalt Mixtures
(2014-04-25)
There is an increasing need in evaluating the cracking resistance of asphalt mixtures as more recycled materials are used in the mixes. A promising method that has been used to evaluate the mixture cracking resistance is ...
Evaluation of Critical and Essential Concrete Highway Bridges in a Moderate Seismic Hazard
(2014-01-21)
The task of this thesis is to determine if the response of critical and essential bridges designed using the AASHTO LRFD Bridge Design Specifications would meet performance requirements when subjected to the moderate seismic ...
Identification of Factors Contributing to Geographic Scale and Mode Choice of Long-Distance Travel
(2014-07-11)
As long-distance travel increases it is emerging as an increasingly important consideration in transportation planning. Not only is this in response to an increase in magnitude but also in recognition that such trips possess ...
Immobilization of Mercury by Stabilized FeS Nanoparticles and Effects of Oil Dispersant on Sorption/Desorption and Photodegradation of Polycyclic Aromatic Hydrocarbons
(2014-04-25)
Iron sulfide (FeS) nanoparticles were prepared with sodium carboxymethyl cellulose (CMC) as a stabilizer, and tested for enhanced removal of mercury (Hg(II)) from water, soil and sediment. The presence of CMC at ≥0.03 wt.% ...
Understanding Unsteady Flow and Modeling Water Quality Dynamics in the Coastal Systems under Various Hydrological and Climate Scenarios
(2014-05-12)
Three dimensional hydrodynamic Environmental Fluid Dynamics Code (EFDC) model was used to simulate flow, temperature, dye, age of tracer, and salinity in the Alabama coastal systems. The study area Perdido Bay and Wolf Bay ...
Compressive Strength and Modulus of Elasticity Relationships for Alabama Prestressed Concrete Bridge Girders
(2014-07-09)
The state of Alabama constructs many of its bridges using precast, prestressed concrete bridge girders. There is a desire to more accurately predict girder cambers through the time of deck placement. Proper understanding ...