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Conditions Contributing to Poor Coagulation and Sedimentation Performance in Municipal Water Treatment
(2009-02-23)
The failure of the Auburn Water Works municipal water treatment coagulation and sedimentation process causing the plant to shut down from June 29, 1999 to July 2, 1999 was investigated. The investigation proceeded in two ...
Transferring Alabama's Smoothness Specifications from PI-based to IRI-based
(2009-02-23)
Currently, Profilograph Index (PI) is deployed as the pavement smoothness evaluation index in the Alabama DOT’s smoothness specifications. The specifications set the incentive, full and disincentive payment levels to ...
The Fate and Transport of the Antimicrobials Sulfadimethoxine and Ormetoprim in the Environment
(2009-02-23)
Over the past decade, there have been increasing concerns regarding antimicrobial contaminants in the environment. To date, there exists limited research regarding the fate of these compounds in the environment once ...
Evaluation of the Use of Reclaimed Asphalt Pavement in Stone Matrix Asphalt Mixtures
(2008-09-09)
Mixtures that contain reclaimed asphalt pavement (RAP) can typically perform as well or better than conventional HMA mixes. However, use of RAP has generally not been extended to stone matrix asphalt (SMA) production. This ...
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 ...
Catenary Action in Steel Framed Structures with Autoclaved Aerated Concrete Infill & Buckling Restrained Braces
(2014-12-04)
The progressive collapse of structures is considered a major concern for designers since the Ronan Point incident. Preventing and mitigating progressive collapse has become a serious issue for all types of buildings. ...
Evaluation of Inlet Protection Practices (IPPs) Using Large-Scale Testing Techniques
(2014-11-24)
Most roadway construction efforts disturb existing vegetation thereby exposing bare soil to environmental variables that cause erosion. Soil eroded during storm events is conveyed by stormwater runoff and may become ...
Predicting Time-Dependent Deformations in Prestressed Concrete Girders
(2014-11-05)
A prestressed concrete girder camber prediction program, which utilizes a time-step approach, was improved to a new version including modifications, new features, and the fib Model Code 2010 material prediction model. The ...
Performance of Multi-Phase Passive Control Systems in Steel Structures
(2014-12-17)
Earthquake resistant buildings can experience significant damage during an event. A multi-phase passive control system (MPCS) was developed to reduce structural damage, repair costs, and downtime of buildings subjected to ...
Connection Demand Prediction for the Design of Precast Concrete Wall Panels Subjected to Blast Loads
(2015-01-09)
One challenge in design of structures for highly impulsive loading is accurately predicting the peak transient shear and the corresponding connection force demand at supports. Single-degree-of-freedom (SDOF) approaches ...