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Now showing items 271-280 of 291
Identification of Selenium Reducing Species Within and Suggested Optimization of a Passive Biological Reactor
(2016-12-09)
As concern for the environment moves to the forefront of the issues considered most pressing by society, mankind is becoming increasingly aware of the harmful things it discharges into the ecosystem in the name of industry ...
Model for Permit Loads for Barnes Slough Bridge
(2016-12-10)
ALDOT has an eleven-span flat slab concrete bridge over Barnes Slough and Jenkins Creek on the northbound side of US Highway 82/231 that was built in 1915 for which there are no construction drawings or other available ...
Wrong-Way Driving: Crash Data Analysis and Safety Countermeasures
(2016-07-25)
Wrong-way driving (WWD) on controlled-access highways has been a consistent issue since the introduction of Interstate systems in the 1950s. Despite all the efforts to overcome the issue, there is still much to learn. This ...
Impact of Vertical Ground Motion on Seismic Response of Steel Frame Structures
(2016-02-05)
It is a well-known fact that all earthquakes have three orthogonal components of acceleration including two horizontal and one vertical acceleration. Current design practice for design of structures in United States only ...
Chromate immobilization in groundwater and soil using Iron-Manganese binary metal oxide nanoparticles
(2015-12-16)
Fe-Mn (iron – manganese binary oxide) nanoparticle were synthesized and test for the Cr(VI) immobilization in soil and groundwater. Water soluble starch and carboxymethyl cellulose (CMC) were applied to stabilize the ...
Moving Forecasting Error: A Risk-Based Cost Forecasting Approach
(2020-05-04)
The large amounts of historical pricing data the state transportation agencies (STAs) have collected during the last couple of decades, combined with the information technologies available today, have facilitated greater ...
Creep and Shrinkage Behavior of Concrete in Segmental Bridge Applications
(2020-11-23)
The objective of this study is to accurately predict creep and shrinkage behavior of concrete in the I-59/I-20 segmental bridge located in downtown Birmingham, Alabama. In order to quantify creep and shrinkage, four different ...
Desiccation Cracking Behavior of Sustainable and Environmentally Friendly Reinforced Cohesive Soils
(2020-04-17)
Desiccation cracking of cohesive soils is the development of cracks on the soil surface as a result of a reduction in soil water content. The decrease in soil surface area owing to the desiccation of cohesive soils has an ...
A Model for the Regional Variability of Riprap Prices in Alabama
(2020-05-05)
Riprap is widely used by departments of transportation (DOTs) for erosion control and slope stabilization activities. Even though DOTs seem to be satisfied with the ability of riprap to fulfill its intended purpose, its ...
Fragment Response of Unreinforced Concrete Masonry Walls Subjected to Blast Loading Conditions
(2020-04-21)
There are very few methods for predicting the fragment velocity and fragment production of an unreinforced, ungrouted concrete masonry wall. Those that do exist often require large computational resources or fail to predict ...