Browsing by Author "Schindler, Anton K."

Now showing items 1-19 of 19

Assessment of Stability Test Methods for Self-Consolidating Concrete

Keske, Samuel D. (2011-04-01)

Self-consolidating concrete (SCC) is a highly fluid, nonsegregating concrete that can spread through reinforcement and completely fill formwork without the use of mechanical consolidation. Resistance to segregation, also ...

Bond Behavior of Prestressed Reinforcement in Beams Constructed with Self-Consolidating Concrete

Levy, Kelly (2007-05-15)

Accurate behavioral characteristics of self-consolidating concrete (SCC) should be established prior to its widespread implementation in prestressed members. This thesis describes an investigation of bond behavior of ...

Compressive Strength and Modulus of Elasticity Relationships for Alabama Prestressed Concrete Bridge Girders

Hofrichter, Andric (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 ...

Early-age cracking of mass concrete structures

Meadows, Jason (2007-05-15)

Early-age cracking is a recurring problem in many mass concrete structures. Currently agencies tend only to limit the maximum temperature difference that may develop in a mass concrete structure in an attempt to mitigate ...

Effect of Core Geometry and Size on Concrete Compressive Strength

Carroll, Adam (2014-11-06)

To evaluate the in-place concrete strength for acceptance for a structural member with potentially substandard strength, the compressive strength of cores may be required for assessment. Depending on the geometry and size ...

Effectiveness of Silane in Mitigating Alkali-Silica Reaction in the Bibb Graves Bridge

Johnson, Darren (2013-11-11)

The Bibb Graves Bridge is in Wetumpka, Alabama, and it has severe damage caused by alkali-silica reaction (ASR) in two of its fourteen reinforced concrete arches. A silane-based, ASR mitigation procedure was developed and ...

Evaluation of In-Place Concrete Strength by Core Testing

Grubbs, Aaron (2014-12-16)

When the average compressive strength of molded cylinder specimens do not meet the minimum required strength for a batch of concrete, testing must be performed on the in-place concrete to evaluate its strength. There are ...

Evaluation of Self-Consolidating Concrete for Use in Prestressed Girder Applications

Roberts, James (2005-12-15)

Self-consolidating concrete (SCC) is a highly flowable, yet cohesive, concrete that is able to fill formwork and completely encapsulate any reinforcement without the need for external vibration. The use of SCC may help ...

Evaluation of the Maturity Method to Estimate Concrete Strength

Wade, Samuel (2005-12-15)

The strength of a newly constructed concrete structure or roadway is critically important to contractors and engineers who must decide when to safely allow construction loads, prestressing operations, or opening to traffic ...

Fiber-Reinforced Polymer Strengthening of War Memorial Bridge—Installation, Load Testing, and Analysis

Carmichael, Benjamin (2005-12-15)

An assessment of the rehabilitation of a reinforced-concrete bridge using carbon fiber reinforced polymer (FRP) laminate materials is presented. The installation of FRP strips to girder bottoms in the positive moment section ...

Finite-Element Modeling of a Damaged Prestressed Concrete Bridge

Shapiro, Kelli (2007-05-15)

Spans 10 and 11 of the Interstate Highway 565 bridge structure in Huntsville, Alabama were noticed to be cracked shortly after their construction. Alabama Department of Transportation (ALDOT) employees investigated and ...

Improving Camber Predictions for Precast, Prestressed Concrete Bridge Girders

Mante, David M. (2016-05-03)

In precast, prestressed concrete construction, the eccentricity of the prestressing force typically results in a net upward girder deflection known as camber. Camber is first observed at the time of prestress transfer and ...

Live-Load Response of In-Service Bridge Constructed with Precast, Prestressed Self- Consolidating Concrete Girders

Miller, David (2013-11-08)

In order to assess the viability of a bridge constructed with precast, prestressed, self-consolidating concrete (SCC) bridge girders in the state of Alabama, the Alabama Department of Transportation (ALDOT) sponsored an ...

Mitigation of Cracking in Cast-In-Place Reinforced Concrete Box Culverts in Alabama

Minton, Layton Wilson (2012-08-14)

Significant cracking was observed in Alabama Department of Transportation (ALDOT) cast-in-place (CIP) reinforced concrete box culverts in the Anniston East Bypass (AEB) project in Anniston, AL. Numerous wide, transverse ...

Predicting Time-Dependent Deformations in Prestressed Concrete Girders

Isbiliroglu, Levent (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 ...

Reliability Analysis of Prestressed Concrete Box Girder Bridges in California

Kouame, Andrea Noelly (2021-07-27) ETD File Embargoed

Truck traffic increases day by day according to the economy. Road network infrastructure has to meet this growing demand. This work focuses on prestressed concrete box girder bridges in California, because many signs of ...

Strength Assessment of Soil Cement

Nemiroff, Jordan (2016-12-07)

Soil cement is a mixture of soil, portland cement, and water that is compacted and cured to form a pavement base. Due to construction practices and variances in core strengths, questions have arisen concerning quality ...

Transfer Length in Prestessed Self-Consolidating Concrete

Swords, Jesse (2005-12-15)

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 ...

Use of Self-Consolidating Concrete in Precast, Prestressed Girders

Keske, Samuel D. (2014-07-02)

Self-consolidating concrete (SCC) is a high-performance concrete in the fresh state—because of its highly fluid fresh behavior, it requires no mechanical consolidation during placement. Prior to statewide acceptance of ...