Browsing by Department "Civil Engineering"
Now showing items 41-60 of 394
Cellular Confinement as a Means to Limit Sediment Resuspension
(2017-07-22)
This document contains the findings of experimental research that examines the effectiveness of small-scale confinement cells within the context of sediment basins, channels, or ditches. The confinement cells were tested ...
Characterization of Multi-Phase Performance-Based Passive Control Systems
(2011-10-27)
Typical passive control devices have inherent strengths and weaknesses as seismic protection systems. A Multi-phase Passive Control System (MPCS) combines two types of passive control devices in a system in order to offset ...
Characterization of the Behavior of High Volume Fly Ash Concrete
(2011-08-11)
Fly ash is commonly used as a supplementary cementitious material (SCM) in the production of portland cement concrete. Concrete produced with high fly ash replacement levels is considered high volume fly ash (HVFA) concrete. ...
Characterization of unsteady multiphase flows in stormwater management applications
(2018-08-20)
Intense rain events create many issues in urban areas, including flooding, overflows in stormwater systems, sediment pollution, etc. In many circumstances, flows are unsteady and characterized by multiphase flow conditions, ...
Chemical characterization and biomarker fingerprinting of Deepwater Horizon oil spill residues
(2015-07-02)
On April 20th, 2010, the Deepwater Horizon (DWH), a semi-submersible drilling rig, located about 120 miles off the coast of Alabama, exploring for oil in the Gulf of Mexico (GOM), experienced a catastrophic blowout and ...
Chemical Factors Influencing Colloid Mobilization and Th(IV) Transport through Saturated Subsurface Sediment
(2012-07-10)
In recent years, subsurface colloid mobilization has attracted considerable attention due to its suspected role in enhancing the transport of strongly adsorbing contaminants. Such colloid-facilitated contaminant transport ...
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 ...
Combined Flexural and Cable-like Behavior of Ductile Steel Beams
(2009-08-28)
In addressing the propensity of steel building structures to experience progressive collapse due to extreme loading conditions (e.g., blast), current design guidelines propose the use of a threat-independent approach that ...
Comparative Analysis of Soil Erosion Using Large-, Intermediate-, and Small-Scale Test Plots of Bare Soil and Different Hydromulch Products under Large-Scale Rainfall Simulator
(2020-12-10)
A study was conducted to compare the test results of three different size erosion-control plots under rainfall simulation to determine if there is a direct relationship to the size of a tested erosion-control plot and the ...
Comparative Load Rating Study Under LRFR and LFR Methodologies for Alabama Highway Bridges
(2009-05-21)
Currently, the Alabama Department of Transportation (ALDOT) uses the load
factor rating (LFR) methodology of the American Association of State Highway and
Transportation Officials (AASHTO) Manual for Condition Evaluation ...
Comparison of New Technology for Measuring Ride Quality
(2006-12-15)
Ride quality of a pavement is quantified by a statistical index. The statistical index and the profile device used to assess the index are major variables in pavement smoothness. Due to the wide range of these variables ...
Comparison of the reliability index between American codes and Chinese codes
(2018-11-15)
Abstract
The primary purpose of this research is to apply the reliability analysis techniques to the evaluation of two different series’ structural design codes using in America and China. This research is focused on ...
Comparison of the Theory, Application, and Results of One- and Two-Dimensional Flow Models
(2006-08-15)
The accurate simulation of flooding is crucial in the design of safe, cost-effective hydraulic structures. Hydraulic engineers are faced with several difficult decisions that will determine the accuracy of any modeling ...
A Comprehensive Evaluation of Operational and Safety Performance of Directional Rumble Strips on Freeway Off-Ramps
(2020-10-28)
A freeway off-ramp is a short section of roadway that allows vehicles to exit the freeway. Wrong-way driving (WWD) and failure in speed management were found to be the major issues on these off-ramps. Countermeasures have ...
Compressive Strength and Modulus of Elasticity Relationships for Alabama Prestressed Concrete Bridge Girders
(2014-07-09)
The state of Alabama constructs many of its bridges using precast, prestressed concrete bridge girders. There is a desire to more accurately predict girder cambers through the time of deck placement. Proper understanding ...
Conditions Contributing to Poor Coagulation and Sedimentation Performance in Municipal Water Treatment
(2006-05-15)
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 ...
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 ...
CONSITEPLAN – A Multi-Objective Construction Site Utilization Planning Tool
(2012-04-09)
Construction Site Utilization Planning (CSUP) involves identifying, sizing, and positioning the temporary construction facilities required during different stages of the project within the available site boundaries and ...
Construction Site Utilization Planning Best Practices
(2014-03-31)
Construction site utilization planning has implications for project safety, construction efficiency, scheduling, and budgetary performance of a project. An important aspect not identified in past research efforts are the ...
Cost-Duration-Based Lump Sum Project Selection Framework Using Stochastic Methods for Design-Bid-Build Resurfacing Projects
(2019-04-04)
The appropriate selection of procurement tools and contracting strategies is a key factor in the successful completion of construction projects and has become an important and growing area of study for both researchers and ...