Universidad de La Salle, Bogotá
Technological University Dublin
Construction Engineering & Management, Purdue University
Missouri University of Science and Technology
Cornell University
Haestad Methods
Enhancing The Co2 Trapping Capacity Of Saudi Arabian Basalt Via Nanofluid Treatment: Implications For Co2 Geo-Storage,
2023
Edith Cowan University
Enhancing The Co2 Trapping Capacity Of Saudi Arabian Basalt Via Nanofluid Treatment: Implications For Co2 Geo-Storage, Muhammad Ali, Nurudeen Yekeen, Mirhasan Hosseini, Ghazanfer R. Abbasi, Amer Alanazi, Alireza Keshavarz, Thomas Finkbeiner, Hussein Hoteit
Research outputs 2022 to 2026
Mineralization reactions in basaltic formations have gained recent interest as an effective method for CO2 geo-storage in order to mitigate anthropogenic greenhouse gas emissions. The CO2/rock interactions, including interfacial tension and wettability, are crucial factors in determining the CO2 trapping capacity and the feasibility of CO2 geological storage in these formations. The Red Sea geological coast in Saudi Arabia has many basaltic formations, and their wetting characteristics are rarely reported in the literature. Moreover, organic acid contamination is inherent in geo-storage formations and significantly impacts their CO2 geo-storage capacities. Hence, to reverse the organic effect, the influence of various SiO2 …
Molecular Dynamics Simulation Of Interfacial Tension Of The Co2-Ch4-Water And H2-Ch4-Water Systems At The Temperature Of 300 K And 323 K And Pressure Up To 70 Mpa,
2023
Edith Cowan University
Molecular Dynamics Simulation Of Interfacial Tension Of The Co2-Ch4-Water And H2-Ch4-Water Systems At The Temperature Of 300 K And 323 K And Pressure Up To 70 Mpa, Quoc Truc Doan, Alireza Keshavarz, Caetano R. Miranda, Peter Behrenbruch, Stefan Iglauer
Research outputs 2022 to 2026
Subsurface geologic formations such as depleted hydrocarbon reservoirs, deep saline aquifers and shale formations have been considered promising targets for carbon dioxide and hydrogen storage. A solid understanding of the interfacial properties of multiphase systems, including binary (pure gas-water) and ternary (gas mixtures and water), is vital to assess for reliability and storage capacity of the geological formations. However, most previous experimental and simulation studies for interfacial properties have mainly focused on binary systems at low-medium pressure. Only a few experimental and simulation studies investigated the interfacial tension at high pressure (above 20 MPa) for the CO2-CH4 …
Hydrogen, Carbon Dioxide, And Methane Adsorption Potential On Jordanian Organic-Rich Source Rocks: Implications For Underground H2 Storage And Retrieval,
2023
Edith Cowan University
Hydrogen, Carbon Dioxide, And Methane Adsorption Potential On Jordanian Organic-Rich Source Rocks: Implications For Underground H2 Storage And Retrieval, Amer Alanazi, Hussein Rasool Abid, Muhammad Usman, Muhammad Ali, Alireza Keshavarz, Volker Vahrenkamp, Stefan Iglauer, Hussein Hoteit
Research outputs 2022 to 2026
Hydrogen (H2) storage in geological formations offers a potential large-scale solution suitable for an industrial-scale hydrogen economy. However, the presence of organic residuals can significantly influence the H2 storage efficiency, as well as cushion gas performance, such as CO2 and CH4, injected to maintain healthy reservoir pressure. Thus, the H2 storage efficiency and cushion gas selectivity were thoroughly investigated in this work based on H2, CO2, and CH4 adsorption measurements using, for the first time, actual organic-rich carbonate-rich Jordanian source rock samples (TOC = 13 % to 18 …
Utilizing Waste Latex Paint Toward Improving The Performance Of Concrete,
2023
Missouri University of Science and Technology
Utilizing Waste Latex Paint Toward Improving The Performance Of Concrete, Mohamed Leithy, Eslam Gomaa, Ahmed A. Gheni, Mohamed Elgawady
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
In this paper, incorporating the waste latex paint (WLP) into the conventional concrete as a partial replacement of sand to improve its durability was investigated. The fresh and hardened characterizations, in addition to the durability of concrete, were examined. The slump test was used to evaluate the fresh properties, while the hardened properties were evaluated through the volume of voids and absorption rate, in addition to the compressive, splitting tensile, and flexural strengths tests. The durability performance was evaluated by the surface resistivity, bulk electrical resistivity, as well as freeze and thaw resistance tests. The results showed a reduction in …
Combined Behavioral And Engineering Approach To Preventing Highway Fatalities,
2023
University of Kentucky
Combined Behavioral And Engineering Approach To Preventing Highway Fatalities, Benjamin Blandford, Reginald Souleyrette, Caitlin N. Pope, Tony Fields, Erin Lammers-Staats
Kentucky Transportation Center Research Report
Traditional, single-discipline highway safety approaches can be augmented through multidisciplinary approaches that consider both engineering and behavioral interventions (e.g., education, enforcement, public outreach campaigns). Leveraging a systems-based conceptual framework of roadway safety, multiple forms of statistical and geospatial analysis, and SPF modeling and network screening, this report proposes and demonstrates methods for unpacking the influence of behavioral-related factors on crash occurrences and outcomes. The primary focus is on behaviors targeted in the Strategic Highway Safety Plan — aggressive driving, distracted driving, impaired driving, and driving without proper restraint (i.e., seatbelts). Based on application of these methods, the report highlights areas …
Development Of Large-Scale Pseudo-3d Shear Wave Velocity Models At The Garner Valley Downhole Array Site,
2023
Utah State University
Development Of Large-Scale Pseudo-3d Shear Wave Velocity Models At The Garner Valley Downhole Array Site, Isabella Corey
All Graduate Theses and Dissertations
In order to design structures that can withstand anticipated earthquake loads, it is first necessary to understand the behavior of the subsurface when subjected to ground motions. To achieve this, different models and approaches have been proposed in recent decades, each with the aim of estimating how site-specific stratigraphy can amplify and/or scatter seismic waves. All of these methods require, to varying extents, information about the types of soil layers, their thickness, their stiffnesses (represented by a shear wave velocity profile), and lateral variability across the site. This last characteristic is often both difficult and costly to determine. Past research …
Machine Learning-Based Seismic Damage Assessment Of Residential Buildings Considering Multiple Earthquake And Structure Uncertainties,
2023
Missouri University of Science and Technology
Machine Learning-Based Seismic Damage Assessment Of Residential Buildings Considering Multiple Earthquake And Structure Uncertainties, Xinzhe Yuan, Liujun Li, Haibin Zhang, Yanping Zhu, Genda Chen, Cihan H. Dagli
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Wood-frame structures are used in almost 90% of residential buildings in the United States. It is thus imperative to rapidly and accurately assess the damage of wood-frame structures in the wake of an earthquake event. This study aims to develop a machine-learning-based seismic classifier for a portfolio of 6,113 wood-frame structures near the New Madrid Seismic Zone (NMSZ) in which synthesized ground motions are adopted to characterize potential earthquakes. This seismic classifier, based on a multilayer perceptron (MLP), is compared with existing fragility curves developed for the same wood-frame buildings near the NMSZ. This comparative study indicates that the MLP …
A Spike-Shaped Anchorage For Steel Reinforced Polymer (Srp)-Strengthened Concrete Structures,
2023
Missouri University of Science and Technology
A Spike-Shaped Anchorage For Steel Reinforced Polymer (Srp)-Strengthened Concrete Structures, Xingxing Zou, Keenan L. Mcburney, Lesley H. Sneed
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Steel reinforced polymer (SRP) composite has recently emerged as an effective and economical solution for strengthening of reinforced concrete (RC) structures. Premature debonding failure of unanchored SRP at low load levels generally governs the performance of RC structures strengthened with externally bonded SRP. Therefore, a novel yet simple spike-shaped anchorage system was proposed in this study to prevent the debonding failure of SRP and to improve the interfacial shear capacity. Experimental investigation through single-lap shear tests of SRP-concrete joints showed that the anchorage system changed the failure mode from composite debonding to fiber rupture. In addition, the anchorage system substantially …
The Disposal Mode Of Maine’S Waste Governance,
2023
University of Maine
The Disposal Mode Of Maine’S Waste Governance, Travis Blackmer, Brieanne Berry, Michael Haedicke, Cindy Isenhour, Susanne Lee, Jean Macrae, Deborah Saber, Erin Victor
Maine Policy Review
Maine’s materials management system is stuck in a disposal mode of waste governance. Despite significant investments in programs and policies designed to reduce the amount of waste the state buries each year, recent shocks and uncertainties have resulted in increased waste generation and disposal. This paper analyzes specific ways through which materials management in Maine has become locked in to a disposal mode of waste governance. We build a framework to help understand various forms of lock-in and how they might be unlocked. This framework is applied to the extended producer responsibility packaging law that is presently under the rule-making …
Effect Of Internal Curing And Shrinkage-Mitigating Materials On Microstructural Characteristics Of Fiber-Reinforced Mortar,
2023
Missouri University of Science and Technology
Effect Of Internal Curing And Shrinkage-Mitigating Materials On Microstructural Characteristics Of Fiber-Reinforced Mortar, Kamran Aghaee, Kamal Khayat
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Internal curing (IC) and other shrinkage mitigating materials are employed to reduce shrinkage and risk of cracking. This study investigates the efficiency of individual versus combined use of IC and shrinkage mitigating materials on key characteristics of fiber-reinforced mortar (FRM). The investigated mixtures include a 25% pre-saturated lightweight sand (LWS) that is added individually and combined with 10% CaO-based expansive agent (EA) and 2% shrinkage reducing admixture (SRA). This elucidates the synergistic effect of high content IC and EA/SRA on macro- and micro-mechanical characteristics of FRM, especially at the interface of the matrix with fibers. Mechanical properties, microstructural characteristics, and …
A Case Study Of The Comparison Between Rubberized And Polymer Modified Asphalt On Heavy Traffic Pavement In Wet And Freeze Environment,
2023
Michigan Technological University
A Case Study Of The Comparison Between Rubberized And Polymer Modified Asphalt On Heavy Traffic Pavement In Wet And Freeze Environment, Dongzhao Jin, Kwadwo Ampadu Boateng, Dongdong Ge, Tiankai Che, Lei Yin, Wayne Harrall, Zhanping You
Michigan Tech Publications
Ground tire rubber (GTR) usage in asphalt pavement with the dry process has gained more prominence in recent times. The objective of this work is to investigate the pavement performance of GTR-modified asphalt pavement and polymer-modified asphalt pavement on heavy volume of traffic conditions in Michigan's wet and freeze environment. A suite of laboratory tests was done to evaluate the pavement performance of GTR-modified and polymer-modified asphalt mixtures. To reveal the strain and stress relationship under different frequencies and temperatures, the dynamic modulus test was applied. The Hamburg wheel tracking device (HWTD) was used to assess the high-temperature deformation resistance. …
Building Services Engineering July/August 2023,
2023
Technological University Dublin
Building Services Engineering July/August 2023
Building Services Engineering
No abstract provided.
Liquefaction Proneness Of Stratified Sand-Silt Layers Based On Cyclic Triaxial Tests,
2023
Edith Cowan University
Liquefaction Proneness Of Stratified Sand-Silt Layers Based On Cyclic Triaxial Tests, Arpit Jain, Satyendra Mittal, Sanjay Kumar Shukla
Research outputs 2022 to 2026
Most studies on liquefaction have addressed homogeneous soil strata using sand or sand with fine content without considering soil stratification. In this study, cyclic triaxial tests were conducted on the stratified sand specimens embedded with the silt layers to investigate the liquefaction failures and void-redistribution at confining stress of 100 kPa under stress-controlled mode. The loosening of underlying sand mass and hindrance to pore-water flow caused localized bulging at the sand-silt interface. It is observed that at a silt thickness of 0.2H (H is the height of the specimen), nearly 187 load cycles were required to attain liquefaction, which was …
Extending The Service-Life Of Bridges Using Sustainable And Resilient Abutment Systems: An Experimental Approach To Electrochemical Characterization Of Lightweight Mechanically Stabilized Earth,
2023
California State University, Fresno
Extending The Service-Life Of Bridges Using Sustainable And Resilient Abutment Systems: An Experimental Approach To Electrochemical Characterization Of Lightweight Mechanically Stabilized Earth, Fariborz M. Tehrani, Kenneth L. Fishman, Farmehr M. Dehkordi
Mineta Transportation Institute Publications
Bridges are critical components of transportation infrastructure. This research addresses the need to extend the service life of bridges by improving the safety and reliability of bridge abutments and reducing their life-cycle cost and footprints. Mechanically stabilized earth (MSE) is a known strategy to enhance the economy and performance of bridge abutments. In addition, the application of rotary-kiln-manufactured lightweight aggregate backfills improves the performance of MSE bridge abutments with a leaner structural system. Such improvements include a reduction of structural demands due to a lower density, free drainage of granular materials, a high internal friction angle, less settlement with no …
Prediction Of Compressive Strength And Evaluation Of Different Theoretical Standards And Proposed Models Of Brick Columns Confined With Frp, Frcm, Or Srg System,
2023
Missouri University of Science and Technology
Prediction Of Compressive Strength And Evaluation Of Different Theoretical Standards And Proposed Models Of Brick Columns Confined With Frp, Frcm, Or Srg System, Zuhair Al-Jaberi, John J. Myers
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The Strength Capacity of Confined Masonry Column is One of the Topics that Need to Be Studied. in This Study, the Efficiency of using Different Types of Advanced Composite (Non-Corrosive Materials) Such as Fiber Reinforced Polymer (FRP), Fiber Reinforced Cementitious Matrix (FRCM), or Steel Reinforced Grout (SRG) in Confining Masonry Columns is Investigated. a Wide Range of Experimental Database of Masonry Column Specimens Has Been Collected from the Results that Available in Scientific Literatures. Different Theoretical Standards and Proposed Models that Used to Predict the Capacity of Masonry Columns Confined with FRP and FRCM Are Evaluated based on Collected Experimental …
The Influence Of Bio-Inhibitor On The Corrosion Resistance Of Reinforced Concrete Beams Containing Mswi-Ba As A Partial Sand Replacement,
2023
Faculty of Engineering, Beirut Arab University, Debbieh, Lebanon
The Influence Of Bio-Inhibitor On The Corrosion Resistance Of Reinforced Concrete Beams Containing Mswi-Ba As A Partial Sand Replacement, Jamal Khatib, Israa Amer, Ghanem Hassan, Adel Elkordi
BAU Journal - Science and Technology
In this paper, the corrosion behavior of reinforced concrete beams containing municipal solid waste incineration bottom ash (MSWI-BA) as a partial sand replacement and Ceratonia siliqua extract as a green corrosion inhibitor was investigated. Four mixes were prepared: (0 and 20% replacement of sand by MSWI-BA with and without Ceratonia siliqua extract). Tests conducted were UPV, compressive strength, split tensile strength, and elastic modulus. RC beams were prepared for determining the flexural performance. Eight beams were casted. Four beams were exposed to accelerated corrosion test and four beams were kept at room temperature. It was found that the compressive strength, …
Analysis Of Evolution And Morphology Of Urban And Road Networks: Case Study Lebanon-Nabatiyeh Area,
2023
Faculty of Engineering, Beirut Arab University, Debbieh, Lebanon
Analysis Of Evolution And Morphology Of Urban And Road Networks: Case Study Lebanon-Nabatiyeh Area, Amal Al Ghorayeb, Adel Elkordi, Ghaleb Faour, Zeinab Jaber, Youssef Attallah
BAU Journal - Science and Technology
This study examines the morphology and evolution of urban and road networks and their relationship with topography in the Lebanon-Nabatiyeh area, by using GIS and remote sensing data. and calculate the annual urban growth percentage rate. The results reveal a clear relationship between the morphology of urban and road networks and their evolution over four periods, as well as the influence of the surrounding topography on their configuration. The study recommends that urban areas should be developed in areas with a slope range of 15º or more to improve the urban structure and infrastructure surrounding them. Understanding the evolution and …
Methods And Surface Materials Repair For Concrete Structures – A Review,
2023
Faculty of Engineering, Beirut Arab University, Lebanon
Methods And Surface Materials Repair For Concrete Structures – A Review, Lelian W. Elkhatib, Adel Elkordi, Jamal Khatib
BAU Journal - Science and Technology
Concrete is a very critical material that may require maintenance and possible repair periodically, especially in important structure such as bridges. In general, concrete in structures (e.g. reinforced concrete) may be subjected to cracks due to a variety of reasons. These include, design and external environments such as the ingress of harmful ions into the concrete, unexpected extra loads including earthquakes. These cracks can affect not only the appearance of the structure but more importantly the structural performance of concrete and the integrity of the concrete structure. Therefore, when cracks occur a proper repair method should be selected, based on …
Mechanical And Durability Properties Of Fly Ash Geopolymer Concrete – A Review,
2023
Faculty of Engineering, Beirut Arab University, Debbieh, Lebanon
Mechanical And Durability Properties Of Fly Ash Geopolymer Concrete – A Review, Ali Shebli, Jamal Khatib, Adel Elkordi
BAU Journal - Science and Technology
Geopolymers have emerged as a promising alternative for Ordinary portland cement (OPC) in construction industry, due to their potential to minimize the emissions of carbon dioxide (CO2) and improve the efficiency of waste recycling. This paper aims to study the fresh and hardened properties of fly ash geopolymer concrete (GPC), as well as to review the raw materials used in the production of geopolymers. Several factors impact the mechanical and durability properties of fly ash GPC, including the specific type of fly ash utilized, the curing temperature, the alkaline activator (AA) concentration, and the type of AA used. …
Construction And Preliminary Application Of The Carbon-Based Spatial Governance Performance Evaluation System ——Taking Zhejiang Province As An Example,
2023
Department of Environmental Sciences and Engineering, Fudan University
Construction And Preliminary Application Of The Carbon-Based Spatial Governance Performance Evaluation System ——Taking Zhejiang Province As An Example, Lin Qu, Ganlin Xia, Cunkuan Bao Prof.
CSID Journal of Infrastructure Development
Carbon is generated through human socio-economic activities, with territorial space serving as the medium for these activities. Variations in spatial governance result in differences in the scale, intensity and efficiency of social and economic activities, as well as energy and resource consumption and carbon emissions across diverse functional spaces. Consequently, spatial governance performance should be evaluated using carbon-related indicators. This study initially established a theoretical model for assessing spatial governance performance based on carbon and an evaluation method encompassing three dimensions or indices "level-progress-gap". Zhejiang Province and its 11 prefecture-level cities were selected as the research area for preliminary application …
