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Now showing items 31-40 of 103
Soil-Structure Interaction and Imperfect Trench Installations As Applied To Deeply Buried Conduits
(2008-09-09)
The imperfect trench installation method is used to reduce earth pressure on deeply buried conduits. Few quantitative refinements to the imperfect trench installation method, however, have been added since the fundamental ...
Assessment of the effects of soil amendments on the leaching of lead and arsenic from contaminated soil
(2009-02-23)
Lead has a long history in the life of human beings. Unfortunately, only recently did people start to realize that lead is a toxin. Because of increasing human activity, soil lead pollution has become a serious environmental ...
Evaluation of Anionic Polyacrylamide as an Erosion Control Measure Using Intermediate-Scale Experimental Procedures
(2009-05-06)
The United States Environmental Protection Agency (EPA) has been working to establish stricter guidelines and limitations pertaining to stormwater and the various pollutants transported by runoff. This transport is primarily ...
Selective Removal of As(V) from Water by Polymeric Ligand Exchange and Engineered Treatment of Spent Regenerant
(2008-09-09)
Arsenic introduced by natural or human activities into drinking water sources has been a challenging issue around the world. In the western United States, high arsenic concentrations in drinking water have caused serious ...
Optimizing Haul Routes Using Geospatial Technologies for the Delivery of Ready-Mix Concrete in Urban Areas
(2009-02-23)
In the ready-mix concrete industry, timely and uninterrupted delivery of ready-mix concrete to a construction site is of utmost importance for efficient construction operation. Due to ever soaring fuel prices and small ...
Pilot-Testing an Ion Exchange Technology for Selective and Regenerative Arsenate Removal and an Engineered Approach for Stabilizing Arsenic-Laden Process Waste Residuals
(2009-02-23)
Pilot-scale tests of a regenerable and selective polymeric ligand exchanger (PLE) were conducted to remove As(V) at the well field of El Paso Water Utilities (EPWU) in El Paso, TX, USA. The PLE was prepared by immobilizing ...
A Benefit/Cost Analysis of Paved Shoulder Installation on High Priority Road Segments on Two-Lane Rural Highways in Alabama
(2008-09-09)
There are currently more than 40,000 deaths a year that occur as the result of motor vehicle traffic accidents, which have been ranked among the leading causes of death for Americans. In addition, a reported 55% of all ...
Methods for Scaling and Comparing Adsorption Datasets
(2008-09-09)
The presence of reactive groundwater contaminants are a great concern to many government agencies and private entities. The fate and transport of these contaminants is determined by their interactions with subsurface ...
Automated Screening Tool for the Stability of Highway Bridges Subject to Scour
(2008-09-09)
Most bridges in Alabama that are over shallow bodies of water, including small creeks, wetlands, and marshes, were designed so that the bridge superstructure is supported on pile bents. During major flood events, excessive ...
Determination of Hurricane Surge Wave Forces on Bridge Superstructures and Design/retrofit Options to Mitigate or Sustain These Forces
(2008-09-09)
An increasingly common occurrence when strong hurricanes come ashore along the Gulf of Mexico is that the hurricane surge/surface waves lift and push the superstructures of coastline bridges from their support bents into ...