Search results
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Title
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Development of Bridge Management Tools for Predicting Bridge Replacement Projects
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Author
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Alar, Aidan
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Date Created
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2018
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Subjects--Topical
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Civil engineering
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Description
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One of the responsibilities of the NCDOT is the prioritization of highway bridge replacement projects throughout the North Carolina transportation system. The Priority Rating Index (PRI) is a multi-criteria formula that is currently used to provid...
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Title
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Development of a Surface Resistivity Specification for Durable Concrete
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Author
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Biggers, Robert
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Date Created
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2019
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Subjects--Topical
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Engineering
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Description
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Surface resistivity testing is a state-of-the-art method of testing concrete’s ability to resist chloride ion penetration. This electrical test is performed by passing an electrical current through a saturated concrete specimen, and has recently g...
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Title
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Evaluating Corrosive Site Performance of Coastal Bridges
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Author
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Newsome, Ross
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Date Created
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2020
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Subjects--Topical
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Civil engineering
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Description
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Corrosion of reinforcing steel in concrete structures, such as bridges, has historically been a concern in coastal environments. Such environments are chloride-rich due to proximity to the salt water found in oceans and brackish water further inla...
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Title
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Evaluation of J-Rox as a Supplementary Cementitious Material for Concrete Applications
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Author
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Summers, Allison
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Date Created
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2021
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Subjects--Topical
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Civil engineering, Engineering, Materials science
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Description
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Supplementary cementitious materials (SCMs) provide a variety of benefits to fresh and hardened concrete. These materials can be found in naturally occurring substances or from by-products or co-products of a variety of industries. However, some o...
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Title
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Freeze-Thaw Durability Specification for Highway Concrete
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Author
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Ocampo, Joseph
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Date Created
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2022
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Subjects--Topical
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Civil engineering
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Description
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The Super Air Meter (SAM) is a new method of testing that correlates to how well concrete can resist damage from freeze-thaw stresses. This test is a modified Type B pressure meter that undergoes a set of sequential pressure steps. The equilibrium...
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Title
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Hydration of Binary and Tertiary Fly ash and Quicklime Blended Cement Paste System
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Author
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Ojaruega, Akpovona
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Date Created
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2018
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Subjects--Topical
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Civil engineering
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Description
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The hydration kinetics in blended cementitious systems with fly ash are quite different from those in conventional cementitious systems. The pozzolanic nature of fly ash not only reduces the rate of hydration in cement-fly ash blends, but also rea...
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Title
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Internally Cured Concrete Mixtures and Specifications for Highway Infrastructure
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Author
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Leach, Jacob
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Date Created
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2017
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Subjects--Topical
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Civil engineering
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Description
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Internal curing is a relatively simple approach to reduce the shrinkage and cracking potential of concrete mixtures, accomplished by placing reservoirs of water within the concrete to provide additional moisture to facilitate hydration of the ceme...
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Title
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Investigating Time Sensitive Thermal and Mechanical Inputs for Rigid Pavements
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Author
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Summers, Clarke
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Date Created
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2023
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Subjects--Topical
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Transportation
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Description
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The Mechanistic-Empirical Pavement Design Guide (MEPDG) is a tool developed by NCHRP used to aid engineers in pavement design and performance analysis. MEPDG is currently incorporated into the software program AASHTOWare Pavement ME Design. The so...
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Title
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Quality Assurance of Bridge Deck Concrete Overlays using Surface Resistivity Testing
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Author
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Dillworth, David
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Date Created
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2020
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Subjects--Topical
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Civil engineering
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Description
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Through years of heavy usage, critical transportation components such as bridge decks are repeatedly subjected to stresses from freeze-thaw cycles, chemical attack and the physical loads. These continual stresses and deterioration mechanisms actin...
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Title
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Thermal Performance of Precast Concrete Connections Exposed to Fire
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Author
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Blackstone, Jonathan
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Date Created
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2019
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Subjects--Topical
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Civil engineering
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Description
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Today, most structural design for fire is governed by the International Building Code. Prescriptive code has proven to be efficient and simple to employ for structural design purposes. However, critical connecting elements in structures can be lef...