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Now showing items 51-60 of 267
Removal and Immobilization of Arsenic in Water, Ion Exchange Brine, and Soil
(2010-12-07)
Removal of arsenic, As(III) and As(V), in water and soils is one of the most challenging environmental issues. Six polymeric ligand exchangers (PLEs) were synthesized by functionalizing various polymeric matrices (known ...
Effects of Polyacrylamide Hydrogel on the Properties of Sand
(2010-08-18)
A study on the effects of polyacrylamide hydrogel on the properties of Ottawa sand was conducted. Laboratory testing included stress-controlled cyclic triaxial tests, consolidated undrained triaxial compression tests, and ...
Measuring the Effects of Bridge Deck Replacement Methods on Construction Performance Factors
(2011-05-11)
The objective of this research was to develop and evaluate a methodology for measuring the effect of various bridge deck replacement methods on the total cost, schedule, and road user costs of a bridge project. Steps are ...
Evaluation of Hydromulches as an Erosion Control Measure Using Intermediate-Scale Experiments
(2010-05-20)
Discharge of sediment-laden stormwater from active construction sites, such as highway construction projects, is a growing concern in the construction industry (Zech et al. 2007, 2008). The United States Environmental ...
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 ...