Imad L. Al‐Qadi
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View article: Optimizing Flexible Pavement Density during Construction with Closed-Loop GPR Monitoring
Optimizing Flexible Pavement Density during Construction with Closed-Loop GPR Monitoring Open
Ground-penetrating radar (GPR) has been proven capable of accurately predicting asphalt concrete (AC) thickness and density. These properties are vital for pavement structural integrity. The objective of this study was to monitor AC compac…
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: Prediction of Pavement Damage under Truck Platoons Utilizing a Combined Finite Element and Artificial Intelligence Model
Prediction of Pavement Damage under Truck Platoons Utilizing a Combined Finite Element and Artificial Intelligence Model Open
For robust pavement design, accurate damage computation is essential, especially for loading scenarios such as truck platoons. Studies have developed a framework to compute pavement distresses as function of lateral position, spacing, and …
View article: Enhanced Capabilities of the Illinois Accelerated Pavement Tester
Enhanced Capabilities of the Illinois Accelerated Pavement Tester Open
After being in service for nearly 20 years, the Illinois Accelerated Pavement Tester (I-APT) was upgraded to provide enhanced capabilities for accelerated pavement testing. In addition to a new control system, the improvement included a ne…
View article: Embedded Energy Harvesting Modules in Flexible Pavements
Embedded Energy Harvesting Modules in Flexible Pavements Open
Energy from pavements can be harvested in multiple ways to produce clean energy. One of the techniques is electromagnetic energy harvesting, in which mechanical energy from vehicles is captured in the form of input displacement to produce …
View article: Development of a full-Scale approach to predict overlay reflective crack
Development of a full-Scale approach to predict overlay reflective crack Open
Resurfacing a moderately deteriorated Portland cement concrete (PCC) pavement\nwith asphalt concrete (AC) layers is considered an efficient rehabilitation\npractice. However, reflective cracks may develop shortly after resurfacing\nbecause…
View article: Asphalt Concrete Density’s Monitoring during Construction
Asphalt Concrete Density’s Monitoring during Construction Open
Over the past three decades, GPR has been implemented for various applications in civil engineering infrastructure, including predicting in-situ density of AC pavements. Given the sensitivity of asphalt concrete (AC) layer density to compa…
View article: SIFT-Aided Rectified 2D-DIC for Displacement and Strain Measurements in Asphalt Concrete Testing
SIFT-Aided Rectified 2D-DIC for Displacement and Strain Measurements in Asphalt Concrete Testing Open
Two-dimensional digital image correlation (2D-DIC) is a widely used optical technique to measure displacement and strain during asphalt concrete (AC) testing. An accurate 2-D DIC measurement can only be achieved when the camera's principal…
View article: Planning for Emerging Mobility: Testing and Deployment in Illinois
Planning for Emerging Mobility: Testing and Deployment in Illinois Open
As part of planning I-ACT, this project developed plans and recommendations for the integration of energy harvesting, electrification, and 5G communication. Given the emergence of autonomous, connected, and electrified technologies, I-ACT …
View article: Utilizing Reclaimed Asphalt Pavement in Preservation Treatments
Utilizing Reclaimed Asphalt Pavement in Preservation Treatments Open
The use of reclaimed asphalt pavement (RAP) has economic and environmental impacts. This report investigates the prospective use of RAP in preservation treatments (mainly chip sealing and microsurfacing) in Illinois. A review of the curren…
View article: Evaluation of the Asphalt Mixture Design Framework for Airfield Pavements in Illinois
Evaluation of the Asphalt Mixture Design Framework for Airfield Pavements in Illinois Open
The Federal Aviation Administration (FAA) advisory circular AC 150/5100-13 authorized the use of state highway material specifications at nonprimary public-use airports serving aircraft less than 60,000 pounds gross weight. This approval i…
View article: Pavement Distresses Due to Truck Platoons: A Holistic Analysis
Pavement Distresses Due to Truck Platoons: A Holistic Analysis Open
Currently, AASHTOWare PMED does not contain a framework to compute distresses for loading scenarios like truck platoons. Truck platoons reduce fuel consumption and improve safety while increasing pavement damage because of a reduction in w…
View article: Smart Mobility Blueprint for Illinois
Smart Mobility Blueprint for Illinois Open
Connected, automated, shared, and electric (CASE) technologies have invoked Mobility 4.0—a connected, digitized, multimodal, and autonomous system of systems. This project established a flexible and adaptable blueprint that would streamlin…
View article: Crack Detection of Asphalt Concrete Using Combined Fracture Mechanics and Digital Image Correlation
Crack Detection of Asphalt Concrete Using Combined Fracture Mechanics and Digital Image Correlation Open
Cracking is a common failure mode in asphalt concrete (AC) pavements. Many\ntests have been developed to characterize the fracture behavior of AC. Accurate\ncrack detection during testing is crucial to describe AC fracture behavior.\nThis …
View article: Optimized Hot-Mix Asphalt Lift Configuration for Performance
Optimized Hot-Mix Asphalt Lift Configuration for Performance Open
Researchers conducted eight large-scale laboratory tests to assess the combined impact of hot-mix asphalt (HMA) overlay mix and thickness on its performance to control reflective cracking. Bonding efficiency, flexibility, and stiffness of …
View article: Automated crack propagation measurement on asphalt concrete specimens using an optical flow-based deep neural network
Automated crack propagation measurement on asphalt concrete specimens using an optical flow-based deep neural network Open
This article proposes a deep neural network, namely CrackPropNet, to measure\ncrack propagation on asphalt concrete (AC) specimens. It offers an accurate,\nflexible, efficient, and low-cost solution for crack propagation measurement\nusing…
View article: Systematic use of transport infrastructure non-destructive assessment and remote sensing
Systematic use of transport infrastructure non-destructive assessment and remote sensing Open
For decades, remote sensing technologies and the non-destructive testing (NDT) methods have been used for the assessment of transport infrastructure, highways, railways and airfields. The existence of provisions of multi-source, multi-scal…
View article: Effect of Moisture Content on Calculated Dielectric Properties of Asphalt Concrete Pavements from Ground-Penetrating Radar Measurements
Effect of Moisture Content on Calculated Dielectric Properties of Asphalt Concrete Pavements from Ground-Penetrating Radar Measurements Open
Moisture presence in asphalt concrete (AC) pavement is a major cause of damage to the pavement. In recent decades, an increasing need exists for non-destructive detection and monitoring of the moisture content in AC pavement. This paper pr…
View article: Sensing Advancement and Health Monitoring of Transport Structures
Sensing Advancement and Health Monitoring of Transport Structures Open
Planning, design, construction, maintenance and management of transport infrastructure demand new methods and approaches to optimise utilisation of materials, energy and workforce [...]
View article: Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches
Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches Open
Truck platoons are expected to improve safety and reduce fuel consumption. However, their use is projected to accelerate pavement damage due to channelized-load application (lack of wander) and potentially reduced duration between truck-lo…
View article: Pavement Data Analytics for Collected Sensor Data
Pavement Data Analytics for Collected Sensor Data Open
The Federal Aviation Administration instrumented four concrete slabs of a taxiway at the John F. Kennedy International Airport to collect pavement responses under aircraft and environmental loading. The study started with developing prepro…
View article: Development of a Numerical Model to Predict the Dielectric Properties of Heterogeneous Asphalt Concrete
Development of a Numerical Model to Predict the Dielectric Properties of Heterogeneous Asphalt Concrete Open
Ground-penetrating radar (GPR) has been used for asphalt concrete (AC) pavement density prediction for the past two decades. Recently, it has been considered as a method for pavement quality control and quality assurance. A numerical metho…
View article: Louisiana Experience with Inverted Pavement Systems
Louisiana Experience with Inverted Pavement Systems Open
Inverted pavement systems are used to optimize material consumption and provide long-term performance benefits. The Louisiana Department of Transportation and Development has successfully adopted inverted pavement systems with demonstrated…
View article: Truck-Platoonable Pavement Sections in Illinois’ Network
Truck-Platoonable Pavement Sections in Illinois’ Network Open
Truck platooning has many benefits over traditional truck mobility. Literature shows that platooning improves safety and reduces fuel consumption between 5% and 15% based on platoon configuration. In Illinois, trucks carry more than 50% of…
View article: Optimization of Lateral Position of Autonomous Trucks
Optimization of Lateral Position of Autonomous Trucks Open
The introduction of autonomous and connected trucks (ACTs) is expected to result in drastic changes in operational characteristics of freight shipments, which may in turn have significant impacts on efficiency, safety, energy consumption, …
View article: Effect of Chemical Composition of Bio- and Petroleum-Based Modifiers on Asphalt Binder Rheology
Effect of Chemical Composition of Bio- and Petroleum-Based Modifiers on Asphalt Binder Rheology Open
In recent years, increased use of recycled asphalt materials (RAP) has created a need for softer binders to compensate stiffer binder coming from RAP. Economic alternatives, like recycled oils and proprietary bio-based oils, can be potenti…
View article: Mechanical modelling of asphalt concrete using grid division
Mechanical modelling of asphalt concrete using grid division Open
In this paper, a simple method is introduced for the computational modelling of multiphase materials, and for the approximation of their mechanical response. The two-dimensional microstructures of six asphalt concrete specimens are selecte…
View article: Carbon Footprint Estimation in Road Construction: La Abundancia–Florencia Case Study
Carbon Footprint Estimation in Road Construction: La Abundancia–Florencia Case Study Open
The environmental impact of road construction and rehabilitation can be associated with the increase of greenhouse gas (GHG) emissions, which are highly related to climate change. Consequently, departments of transportation have recently f…