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In situ Degradation of Trichloroethylene in Soil and Groundwater with Stabilized Zero Valent Iron Nanoparticles and Catalytic Hydrodechlorination with Supported Palladium Nanoparticles
(2012-05-03)
Chlorinated solvents, such as trichloroethylene (TCE), are potent carcinogens and have been found in soil and groundwater at thousands of National Priorities List sites in the U.S. To facilitate in-situ chlorinated solvents ...
The Feasibility of Using Alternative Fuels to Produce Portland Cement
(2012-02-08)
The production of cement involves a combination of numerous raw materials,
strictly monitored system processes, and temperatures on the order of 1500 °C.
Immense quantities of fuel are required for the production of ...
Development of Guidance for Runoff Coefficient Selection and Modified Rational Unit Hydrograph Method for Hydrologic Design
(2012-05-07)
The rational method is the most widely used method by hydraulic and drainage engineers to estimate design discharges. The runoff coefficient (C) is a key parameter for the rational method. Literature-based C values (Clit) ...
Chemical Factors Influencing Colloid Mobilization and Th(IV) Transport through Saturated Subsurface Sediment
(2012-07-10)
In recent years, subsurface colloid mobilization has attracted considerable attention due to its suspected role in enhancing the transport of strongly adsorbing contaminants. Such colloid-facilitated contaminant transport ...
Mitigation of Cracking in Cast-In-Place Reinforced Concrete Box Culverts in Alabama
(2012-08-14)
Significant cracking was observed in Alabama Department of Transportation (ALDOT) cast-in-place (CIP) reinforced concrete box culverts in the Anniston East Bypass (AEB) project in Anniston, AL. Numerous wide, transverse ...
Assessing Performance Characteristics of Sediment Basins Constructed in Franklin County, Alabama
(2012-11-12)
The objective of the research project was to monitor the performance of newly designed sediment basins that were constructed on the ALDOT 502 project in Franklin County. The project included four tasks: (1) assess performance ...
Full-Scale Implementation and Testing of Non-Prestressed Full-Depth Precast Bridge Deck Panels with Continuous Shear Pockets
(2012-08-16)
The Alabama Department of Transportation (ALDOT) currently has over three
miles of major interstate bridges near downtown Birmingham involving approximately
600,000 square feet of deck area with significant levels of ...
Development of a Feeder Route Cyclist Demand Model for Dense Urban Areas
(2012-11-06)
This thesis provides a new way of forecasting bicycle demand in the urban core by using a feeder system approach. It uses a technique of predicting demand at a location for all of the demand feeding into that point. No ...
An Analytical Investigation of Transverse Joints in Precast-Panel Bridge-Deck Replacement Systems
(2012-08-15)
In recent years precast bridge deck panels have offered a solution for rapid bridge deck rehabilitation by minimizing traffic interruption and accelerating construction. Cracking and early deterioration of the connections ...
A Finite Volume Implementation of the Shallow Water Equations for Boussinesq Gravity Currents
(2012-07-16)
The shallow water equations (SWE) are a powerful tool for modeling the propagation of gravity currents (GC) because of their relative simplicity, computational efficiency and accuracy. Finite difference solutions, either ...