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Development of a Biennial Review Procedure for Updating Liquidated Damage Rates Used in Construction Contracts
(2008-09-09)
This research effort sought to develop statistically justifiable means for developing a schedule of liquidated damage (LD) rates to be adopted by the Alabama Department of Transportation (ALDOT). The procedure outlined ...
The Utilization of Alternative Fuels in the Production of Portland Cement
(2008-09-09)
The production of portland cement converts many different raw materials into clinker, in the presence of temperatures on the order of 1,500 degrees Celsius. Historically, nonrenewable fossil fuels have been used to maintain ...
Evaluating Water Quality Impacts of Alternative Management Practices through Development of a BMP Database
(2008-09-09)
Agriculture and forestry are two important industries in the State of Alabama, and each is historically known to cause nonpoint source (NPS) pollution problems. Currently, the U.S. Environmental Protection Agency (USEPA) ...
Potential Negative Effects of Adding Phosphate-Based Fertilizers to Lead In Metal-Contaminated Soils
(2008-09-09)
The potential negative effects of adding phosphate amendments for lead (Pb) remediation in Pb-contaminated soils were studied using column and batch experiments. Soils contaminated with high levels of lead as well as ...
Evaluation of Erosion and Sediment Control Best Management Practices: Use of Silt Fence Tieback Systems and Anionic Polyacrylamide on Highway Construction Sites
(2008-09-09)
Every year the construction process exposes millions of acres of earth to the elements of wind, rain, and snow. This greatly increases the potential for erosion; therefore, the need for efficient erosion and sediment ...
Immobilization of Mercury Using Iron Sulfide Minerals
(2008-09-09)
Mercury is a pervasive pollutant that has caused environmental and health problems throughout the world. Numerous industries including coal-fired power plants and chlor-alkali plants have discharged mercury into the ...
Destruction of Perchlorate and Nitrate by Stabilized Zero-valent Iron Nanoparticles and Immobilization of Mercury by a New Class of Iron Sulfide Nanoparticles
(2008-09-09)
This research compares representative standard strong-base anion (SBA) and weak-base anion (WBA) exchangers, a bifunctional resin (A-530E), a class of polymeric ligand exchangers (PLE’s), and an ion-exchange fiber (IXF) ...
Analytical Solutions for Sequentially Coupled Multi-Species Reactive Transport Problems
(2008-09-09)
Multi-species reactive transport equations coupled through sorption and sequential first-order reactions are commonly used to model sites contaminated with radioactive wastes, chlorinated solvents and nitrogenous species. ...
Relationships Between Laboratory Measured Characteristics of HMA and Field Compactability
(2008-09-09)
Compactability of HMA mixtures is often used to describe how easy or difficult a mixture is to compact on a roadway. Several asphalt researchers have proposed laboratory measured parameters of mixtures and/or their ...
Factors Affecting Arsenic Mobilization in Experimental Subsurface Systems
(2008-09-09)
Elevated concentrations of arsenic (As) in groundwater is a widespread problem
that affects millions of people around the world. Other than the adverse affects on human
health, this problem often raises economic, social ...