Jeffery R. Roesler
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View article: Distribution of Fiber-Reinforcement in Thin Concrete Overlays
Distribution of Fiber-Reinforcement in Thin Concrete Overlays Open
The spatial distribution and orientation of fibers in concrete materials can be linked with the measured fracture performance of the fiber-reinforced concrete (FRC). For FRC pavements, the improved toughness performance is used for adjusti…
View article: Reclaimed Asphalt Pavement in Concrete Pavements: Properties, Microstructure, and Design
Reclaimed Asphalt Pavement in Concrete Pavements: Properties, Microstructure, and Design Open
Reclaimed asphalt pavement (RAP), when used as aggregate in concrete, is known to reduce the bulk concrete strength and modulus but not dramatically impact shrinkage, durability, or fracture properties, especially at lower replacement leve…
View article: Effect of Fine Lightweight Aggregate on Curling Behavior of Concrete Beams
Effect of Fine Lightweight Aggregate on Curling Behavior of Concrete Beams Open
Addition of saturated lightweight aggregate fines to concrete have demonstrated the ability to enhance hydration, reduce autogeneous shrinkage and permeability, and increase strength. However, no study has yet been conducted on the impact …
View article: Engineering and Design Considerations for Steel Furnace Slag Aggregates in Concrete Pavements
Engineering and Design Considerations for Steel Furnace Slag Aggregates in Concrete Pavements Open
The use of steel furnace slag (SFS) aggregates is limited in the United States and abroad, primarily because of the inherent expansion potential of the material, which results from the hydration of the free calcium and magnesium oxides pre…
View article: Effect of Nonuniform Foundation Support on Concrete Slab Responses
Effect of Nonuniform Foundation Support on Concrete Slab Responses Open
The ability to spatially map the stiffness of the foundation layers under concrete pavements with intelligent compaction has created a need to define limits on the allowable stiffness variations in a given construction area as well as the …
View article: Crack Behavior in Asphalt Composite CRCP with Basalt Fiber Reinforcement
Crack Behavior in Asphalt Composite CRCP with Basalt Fiber Reinforcement Open
Basalt fiber-reinforced polymer (BFRP) bars are corrosion-resistant and have potential to be used in continuously reinforced concrete pavements (CRCP). In this paper, the layout of an asphalt composite CRCP test section with BFRP bars at 0…
View article: Development of LCA-AIR – An Airport Pavement Life Cycle Assessment Tool
Development of LCA-AIR – An Airport Pavement Life Cycle Assessment Tool Open
The demand to provide more sustainable facilities and infrastructure has increased over the past ten years. The ability to measure and quantify the environmental impacts of such projects is in higher demand. Life cycle assessment (LCA) stu…
View article: Effect Of Built-In Curling On Concrete Pavement Performance And Design In Chile
Effect Of Built-In Curling On Concrete Pavement Performance And Design In Chile Open
Built-in curling (BIC) is a permanent upward curvature of the concrete slab produced by irreversible moisture and temperature differences between the top and the bottom of the slab. This residual curvature has been shown to change the perf…
View article: Albedo as an engineering property of concrete pavements
Albedo as an engineering property of concrete pavements Open
Albedo or solar reflectance is a thermal property of concrete pavements that is used in pavement design as well as life cycle assessment. In either application, it has a major impact on distress predictions and the urban heat island quanti…
View article: Emissions Reducing Benefits of Multi-Functional Photocatalytic Concrete Inlays
Emissions Reducing Benefits of Multi-Functional Photocatalytic Concrete Inlays Open
Thin, multi-functional concrete inlays constructed with flowable fibrous concrete (FFC) and containing titanium dioxide (TiO2) nanoparticles offer enhanced constructability and performance characteristics as well as environmental benefits,…
View article: Fresh and Hardened Properties of Concrete with Fractionated Reclaimed Asphalt Pavement
Fresh and Hardened Properties of Concrete with Fractionated Reclaimed Asphalt Pavement Open
A study was completed to investigate the changes in fresh and hardened properties when using coarse, fractionated reclaimed asphalt pavement (FRAP) as a partial replacement of virgin coarse aggregate in a ternary blended concrete. The FRAP…
View article: Repeated Load Behavior of Continuously Reinforced Concrete Pavements
Repeated Load Behavior of Continuously Reinforced Concrete Pavements Open
Full-scale test sections were constructed at the University of Illinois and subjected to accelerated pavement testing in order to evaluate IDOT’s options on extended-life continuously reinforced concrete pavements (CRCP). The CRCP test sec…
View article: Behavior of Concrete Mixtures in Ultra-Thin Whitetopping Composite Pavements
Behavior of Concrete Mixtures in Ultra-Thin Whitetopping Composite Pavements Open
Ultra-thin whitetopping (UTW) is an alternative pavement rehabilitation option to asphalt concrete overlays. UTW is typically a concrete overlay less than 5 inches thick on an existing distressed asphalt pavement. A research project was re…
View article: Is Top-Down Cracking Critical On Airfield Rigid Pavements?
Is Top-Down Cracking Critical On Airfield Rigid Pavements? Open
This paper identifies the key slab loading locations for inducing critical bottom and top tensile stresses on airfield rigid pavements servicing the A-380 aircraft. Finite element simulations were conducted for the A-380’s individual tripl…
View article: Large-Scale Airfield Concrete Slab Fatigue Tests
Large-Scale Airfield Concrete Slab Fatigue Tests Open
Large-scale concrete slab tests were conducted in the laboratory to evaluate the effect of multiple wheel gears on the fatigue resistance of concrete slabs. Monotonic and cyclic loading was completed on sixteen fully-supported slabs. The m…
View article: Comparison of Mechanistic-Empirical Thickness Design Methods and Predicted Critical Fatigue Locations
Comparison of Mechanistic-Empirical Thickness Design Methods and Predicted Critical Fatigue Locations Open
With the use of mechanistic-empirical rigid pavement design methods becoming more widespread, it is important to note the differences of these methods in terms of their sensitivity to input parameters, conservativeness of the design thickn…
View article: Effective Initial Crack Depth in Exposed Concrete Surfaces
Effective Initial Crack Depth in Exposed Concrete Surfaces Open
Microcracking at the surface of concrete slabs can result in a reduction in slab strength at the surface and a decrease in the flexural load carrying capacity of the slab especially when undergoing loading that produces top tensile stresse…
View article: Smart Construction Work-Zone Safety with V2I Passive Material Sensing
Smart Construction Work-Zone Safety with V2I Passive Material Sensing Open
This study explored new vehicle to infrastructure (V2I) technology in construction work zones (CWZ), where speeding, unsafe driving behaviors, and drivers' failure to obey traffic signs contribute significantly to elevated accident rates a…
View article: Performance and Design of Continuously Reinforced Concrete Pavements
Performance and Design of Continuously Reinforced Concrete Pavements Open
This report focuses on the calibration of a design framework for continuously reinforced concrete pavement (CRCP) developed in 2009 by using the most recent performance data acquired from existing CRCP sections in Illinois. Field performan…
View article: Reducing Pb and Cl Mobility in Waste-to-Energy Fly Ashes via Chlorellestadite Formation
Reducing Pb and Cl Mobility in Waste-to-Energy Fly Ashes via Chlorellestadite Formation Open
Sustainably sourced development minerals are vital to meeting the demand for low-carbon construction materials. A potential waste material that can be a low-carbon construction material for cementitious systems is waste-to-energy fly ash (…
View article: Human-centered geometric design of roads using an autonomous vehicle problem
Human-centered geometric design of roads using an autonomous vehicle problem Open
Geometric design of roads is a key component of an undergraduate civil engineering curriculum. At the University of Illinois, geometric design is taught in a senior design class for upperclassmen and new graduate students. In order to enco…
View article: A Near-Peer Mentoring Framework for a Civil and Environmental Engineering Curriculum
A Near-Peer Mentoring Framework for a Civil and Environmental Engineering Curriculum Open
Near peer mentoring has proven to yield positive benefits to mentees in engineering programs. However, formal mentoring programs can be difficult to implement and sustain. Volunteers through student organizations or departmental initiative…
View article: Development of a Project-Based Civil & Environmental Introductory Course
Development of a Project-Based Civil & Environmental Introductory Course Open
Our civil and environmental engineering (CEE) department has recently begun to modify their undergraduate curriculum to address the ever-evolving expectations of the profession. A critical element to this curriculum innovation is the inten…
View article: Rapid AI-based Dissection of Ashes using Raman and XRF Spectroscopy (RADAR-X)
Rapid AI-based Dissection of Ashes using Raman and XRF Spectroscopy (RADAR-X) Open
Waste-to-energy (WTE) facilities incinerate ~35 million tons of municipal solid waste annually in the United States. The incineration process reduces the mass and the volume of the waste fraction by over 75 and 95%, respectively. The fract…
View article: Digital Foam Index Test for Air Entrainment Interactions
Digital Foam Index Test for Air Entrainment Interactions Open
The digital foam index test (D-FIT) has been developed to quantify air-entraining agent (AEA) interaction with cement-fly ash-water mixtures and improve the repeatability of the traditional foam index test. The D-FIT acquires and analyzes …
View article: Enhancing Construction Work-Zone Safety by Passive Pavement-to-Vehicle Communication
Enhancing Construction Work-Zone Safety by Passive Pavement-to-Vehicle Communication Open
Construction work zones for roads pose significant safety challenges for drivers and workers, which can lead to accidents, injuries, fatalities, and property damage. Enhancing construction work-zone safety requires an understanding of the …
View article: D-SPARC: Rapid Field Albedo Measurement
D-SPARC: Rapid Field Albedo Measurement Open
The albedo of surfaces in urban areas plays an important role in regulating the urban microclimate and needs to be measured. Artificial urban surfaces, e.g., pavements with lower albedo than natural surfaces such as grass or soil, are a ke…
View article: Setting time in Roller-Compacted Concrete (RCC)
Setting time in Roller-Compacted Concrete (RCC) Open
The principal differences of RCC from conventional concrete pavements are workability, rheology, paste content, and compactive effort. RCC pavements obtain significant strength during compaction and, therefore, can be opened to traffic in …
View article: Passive Sensing of Electromagnetic Signature of Roadway Material for Lateral Positioning of Vehicle
Passive Sensing of Electromagnetic Signature of Roadway Material for Lateral Positioning of Vehicle Open
Autonomous vehicles (AV) and advanced driver-assistance systems (ADAS) offer multiple safety benefits for drivers and road agencies. However, maintaining the lateral position of an AV or a vehicle with ADAS within a lane is a challenge, es…