Browsing by Author "Barnes, Robert"

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Acoustic Emission Testing of Repaired Prestressed Concrete Bridge Girders

Hadzor, Thomas (2011-05-04)

Acoustic emission (AE) monitoring has proven to be a useful nondestructive testing tool in ordinary reinforced concrete beams. Over the past decade, however, the technique has been used to test other concrete structures ...

Alternative Fuels and Their Effects on Portland Cement

Folta, Aaron (2010-07-19)

The production of portland cement is a complex process involving several materials, complex systems, and temperatures on the order of 1500 °C. Non-renewable fossil fuels such as coal, petroleum coke, and natural gas have ...

Alternative Solid Fuels for the Production of Portland Cement

Akkapeddi, Srikanth (2008-12-15)

Portland cement manufacturing involves the combustion of fuels with various raw materials at approximately 2,700 °F (1,500 °C) to produce clinker. Fuel costs and environmental concerns have encouraged the cement industry ...

An Analytical Investigation of Transverse Joints in Precast-Panel Bridge-Deck Replacement Systems

Rhett, Brian (2012-08-15)

In recent years precast bridge deck panels have offered a solution for rapid bridge deck rehabilitation by minimizing traffic interruption and accelerating construction. Cracking and early deterioration of the connections ...

Assessment of the Coefficient of Thermal Expansion of Alabama Concrete

Sakyi-Bekoe, Kwame (2008-12-15)

The coefficient of thermal expansion (CTE) is a fundamental property of portland cement concrete. It represents the change in unit length of concrete per degree of temperature change. The CTE is a very important property ...

Automated Screening Tool for the Stability of Highway Bridges Subject to Scour

Donnee, Nicole (2008-05-15)

Most bridges in Alabama that are over shallow bodies of water, including small creeks, wetlands, and marshes, were designed so that the bridge superstructure is supported on pile bents. During major flood events, excessive ...

BEHAVIOR AND CAPACITY OF THERMALLY RESTRAINED MOMENT FRAME MEMBERS DURING COMPARTMENT FIRE

Chinivar, Supriya Nagraj (2021-07-27)

In the event of a fire hazard, structural resistance depends on the ability to resist a comprehensive set of load combinations comprising the gravity loads and the thermally induced fire loads without undergoing failure. ...

Behavior of a Damaged Prestressed Concrete Bridge Repaired with Fiber-Reinforced Polymer Reinforcement

Bullock, Wesley (2011-08-08)

After the construction of elevated portions of I-565 in Huntsville, Alabama, cracks were discovered in numerous prestressed concrete bulb-tee bridge girders that were constructed to exhibit continuous behavior in response ...

Braking Forces in Highway Bridge Substructures

Quinn, Anna (2019-06-24)

Under the Load-and-Resistance Factor Design Specification, the longitudinal braking force that must be designed for was increased when compared to a bridge designed according to the previous code, the Standard Specification. ...

Breaching of Concrete Masonry Unit Walls due to Direst Shear when Subjected to Blast Loading

Brannon, Daniel (2012-04-10)

This report details the steps needed to formulate an engineering design equation to address the potential for breaching of concrete masonry walls in between grout cells when subjected to blast loading. Prior to the beginning ...

Bridge Pile Bent P-Delta Curves in Transverse Direction Using FB-Pier and GTSTRUDL Pushover Analysis Procedures

Hughes, Douglas (2005-08-15)

Extreme flood events may create large transverse water loads that cause piles of a bent to bend about their weak axes in addition to causing scour. A comparison of the nonlinear pushover analysis procedures and resulting ...

Characterization of the Behavior of High Volume Fly Ash Concrete

Keith, Kevin (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. ...

Creep and Shrinkage Behavior of Concrete in Segmental Bridge Applications

Cooper, Grant (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 ...

Creep Behavior of Self-Consolidating Concrete

Kavanaugh, Bryan (2008-08-15)

Self-consolidating concrete (SCC) is a highly flowable material that has the ability to improve the quality and durability of structures; however, much is still unknown about the hardened properties of this material, ...

Design & Construction Planning of Rapid Bridge Deck Replacement Systems for I-59 Bridges at Collinsville, AL

Harvey, Bryan (2011-12-13)

Many bridges in the Birmingham area have deteriorated decks that need to be rehabilitated or replaced. Several of these are major interstate bridges that carry large volumes of traffic. Rehabilitation or replacement of the ...

Design of Lateral Support for Non-Integral Wing Walls of Culverts

Lee, Herman III (2017-11-20)

Traditionally, culverts are built with integral wing walls. This style of culvert has shown consistent issues at the joint where the wing wall frames into the culvert bodies due to differential settlement and inadequate ...

Development of a Mass Concrete Specification for Use in ALDOT Bridge Construction

Gross, Eric (2017-08-29)

Special precautions must be taken when constructing concrete elements designated as mass concrete. These precautions may be satisfied through the formation of a mass concrete specification. Temperature requirements must ...

Development of composite beam theory and its application in composite and prestressed concrete structures

Bai, Fengtao (2016-05-13)

For some complex structural engineering problems like behavior of sandwich structures and prestressed concrete structures, extensive experimental works and finite element analyses might not be able to help understand the ...

Development of Jobsite Cylinder Curing Practices for the Alabama Concrete Industry

Fleming, Kyle (2023-04-24)

In concrete construction projects, quality assurance test cylinders are made to evaluate the quality of the concrete delivered to a jobsite. In order to accurately evaluate these cylinders, they must be cured according to ...

Development of Specifications for ALDOT Mass Concrete Construction

Eiland, Andrew (2016-12-09)

In mass concrete construction, concrete temperature requirements must be established to prevent delayed ettringite formation (DEF) and thermal cracking. This involves limiting the maximum allowable concrete temperature ...