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Now showing items 11-20 of 103
Transfer Length in Prestessed Self-Consolidating Concrete
(2008-09-09)
Over the years much research into the transfer lengths of prestressed beams cast with conventional-slump concrete has been performed, but very little has been done in regard to beams cast with self-consolidating concrete ...
The Effects of Sulfide on Pulp and Paper Wastewater Color Reversion
(2008-09-09)
More and more concern is being given to the aesthetics of wastewater, specifically the color of the resulting effluent. The underlying causes of colored wastewater suggest incomplete pollutant removal and unsuccessful ...
Determining the Optimum Compaction Level for Designing Stone Matrix Asphalt Mixtures
(2008-09-09)
As Stone matrix asphalt (SMA) becomes more widely used in the United States, there is a need to further refine its mix design procedure. Some states have found that 100 gyrations with the Superpave Gyratory Compactor (SGC) ...
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 ...
A Sensitivity Analysis of the Mobility-Related Benefits of the Alabama Service and Assistance Patrol
(2008-09-09)
The Alabama Service and Assistance Patrol (ASAP) was developed by the Alabama Department of Transportation in an attempt to reduce non-recurring congestion in the Birmingham region of Alabama. This Freeway Service Patrol ...
Finite Element Modeling of Skewed Reinforced Concrete Bridges and the Bond-slip Relationship Between Concrete and Reinforcement
(2008-09-09)
A bridge deck on US 331 near Montgomery, AL developed transverse and longitudinal cracking a few months after construction was completed. A refined finite element model of this continuous, skewed, composite bridge was ...
Evaluation of the Maturity Method to Estimate Concrete Strength in Field Applications
(2008-09-09)
Estimating the strength of concrete is essential to contractors and engineers to allow concrete construction operations to proceed safely and expediently. The maturity method is a technique that allows the in-place concrete ...