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Articles 1 - 30 of 82
Full-Text Articles in Engineering
Physico-Chemical Properties Of Green Leaf Volatiles, Harsha Satyanarayana Vempati
Physico-Chemical Properties Of Green Leaf Volatiles, Harsha Satyanarayana Vempati
LSU Master's Theses
Green Leaf Volatiles (GLVs) is a class of vegetation emissions whose release is greatly enhanced in the event of thermal or mechanical stress. These oxygenated hydrocarbons that have been identified as a potential source of Secondary Organic Aerosols (SOA) via aqueous oxidation. The physico-chemical properties of GLVs are vital to understanding their fate and transport in the atmosphere, but few experimental data are available. We studied the aqueous solubility, 1-Octanol/Water Partition Coefficient, and Henry’s Constant (KH) of five GLVs at 25&176;C: methyl jasmonate, methyl salicylate, 2-methyl-3-buten-2-ol, cis-3-hexen-1-ol, and cis-3-hexenyl acetate. Henry’s constant was additionally measured at 30&176;C & 35&176;C, and …
Data Distribution In Hpx, Bibek Ghimire
Data Distribution In Hpx, Bibek Ghimire
LSU Master's Theses
High Performance Computation (HPC) requires a proper and efficient scheme for distribution of the computational workload across different computational nodes. The HPX (High Performance ParalleX) runtime system currently lacks a module that automates data distribution process so that the programmer does not have to manually perform data distribution. Further, there is no mechanism allowing to perform load balancing of computations. This thesis addresses that issue by designing and developing a user friendly programming interface conforming to the C++11/14 Standards and integrated with HPX which enables to specify various distribution parameters for a distributed vector. We present the three different distribution …
Travel Time Reliability And Level Of Service, Marlene Beverley Russell
Travel Time Reliability And Level Of Service, Marlene Beverley Russell
LSU Master's Theses
Travel time reliability (TTR) is familiar to travelers, and its indices are useful measures of the quality of a freeway’s service. Technical groups such as highway agencies are more familiar with a freeway’s level of service (LOS), but the LOS does not capture the variability in travel time. Similar to Pu (2011) this thesis introduces a modified buffer index (BI) incorporating a median rather than average travel time as a new travel time reliability measure. Current research by the SHRP 2 L08 Project Team defines freeway reliability LOS by determining equivalent travel time index for similar travel speed ranges shown …
Assimilation, A Biological Nitrogen Removal Strategy For Freshwater Ornamental Fish Hatcheries, Fatemehsadat Fahandezhsadi
Assimilation, A Biological Nitrogen Removal Strategy For Freshwater Ornamental Fish Hatcheries, Fatemehsadat Fahandezhsadi
LSU Master's Theses
Freshwater ornamental fish production is a major component of aquaculture in the southeastern United States. Closed recirculating aquaculture systems (RASs) allow freshwater ornamental fish hatcheries to mimic native water quality conditions for sensitive species. Total ammonia-N (TAN) removal is the major concern for closed RASs. Biological nitrification is the common method to control TAN. However, the nitrification process might be impaired in acidic water condition with pH<7. Another issue of using the nitrification process for TAN removal is that the nitrification is not sufficient to compensate for the amount of ammonia released in larval production systems because of slow growth rate of nitrifying bacteria. To address these issues, this study suggests an aerobic assimilation strategy in which fast growing heterotrophic bacteria directly convert TAN into microbial biomass. The heterotrophic bacteria needs an external carbon source. This study employed polyhydroxybutyrate (PHB) that is a solid insoluble bioplastic, as a carbon source in the aerobic assimilation process to avoid releasing carbon into the system. In order to understand the applicability of an assimilation process instead of nitrification, this study compared the ammonia-N removal rate by aerobic assimilation biofilters operating @ pH 8 and 6.5 in a batch system. The study also quantified the performance of an aerobic assimilation strategy under different continuous nitrogen loading regimes. This investigation can be used to establish the biofilter air pulsing frequency, which is the optimized air pulsing frequency that avoids clogging in the system. The results showed that there was no apparent release of carbon in the water tank. Unlike nitrification, assimilation strategy for TAN removal was not significantly different in two pH of 8 and 6.5 @ 28 ° C. The average consumption rate of the PHB was found as 21.93± 0.43 grams of PHB consumed per gram of TAN. The results from the continuous system, at a continuous feeding rate of 350 mg-N/d, suggested that the optimum air pulsing frequency through the PHB bed for releasing the excess biosolids was about 6-hour. In general, the study found that the aerobic assimilation using polyhydroxybutyrate (PHB) as a carbon source is an applicable method for ammonia-N removal particularly for freshwater ornamental fish production systems. The drawback against this approach is that the PHB beads are expensive. However, our investigations show that the average cost of the PHB beads have been decreased dramatically during the last few years. This might indicate that the assimilation using PHB beads can be a reasonable choice for ammonia-N removal particularly for freshwater ornamental fish production systems.
Identifying Local Transit Resources For Evacuation, Alaa Shams
Identifying Local Transit Resources For Evacuation, Alaa Shams
LSU Master's Theses
The objective of this thesis is to establish a GIS that can be used to identify local human-services and special-needs transit resources in Louisiana’s 20 coastal parishes. The intention is that the system be used to identify and then call upon local transit services to assist in the evacuation of an area during an emergency. ArcGIS Online was selected as the platform on which to establish the GIS for this purpose. Socio-economic and transit vehicle data were collected from a variety of official sources and loaded on to the ArcGIS Online portal at LSU. The development of the system is …
Ethical Hacking Using Penetration Testing, Bharath Kumar Koopari Roopkumar
Ethical Hacking Using Penetration Testing, Bharath Kumar Koopari Roopkumar
LSU Master's Theses
This thesis provides details of the hardware architecture and the software scripting, which are employed to demonstrate penetration testing in a laboratory setup. The architecture depicts an organizational computing asset or an environment.¬¬¬ With the increasing number of cyber-attacks throughout the world, the network security is becoming an important issue. This has motivated a large number of “ethical hackers” to indulge and develop methodologies and scripts to defend against the security attacks. As it is too onerous to maintain and monitor attacks on individual hardware and software in an organization, the demand for the new ways to manage security systems …
Ultrasonic Pretreatment Of Energy Cane Bagasse For Biofuel Production, Niyaz Ahamed Methrath Liyakathali
Ultrasonic Pretreatment Of Energy Cane Bagasse For Biofuel Production, Niyaz Ahamed Methrath Liyakathali
LSU Master's Theses
High demand for energy and increasingly expensive petroleum prices led to development of new alternative fuels for transportation, such as bio-ethanol and bio-diesel. Even though a cost reduction in the production of cellulolytic enzymes is occurring, the conversion of plant cellulose into sugars still remains an expensive and slow process. Pretreatment of lignocellulose materials to remove lignin and alter physical/chemical structures significantly improves hydrolysis of cellulose to give high yield of sugars. In this study, ultrasonic pretreatment of energy cane bagasse was used in the presence of ammonia (NH4OH) to enhance the saccharification process by separating lignin, cellulose and hemicellulose …
Investigating Different Coding Environments For Simplified Reservoir Characterization Models, Atheer Mohammad Al Attar
Investigating Different Coding Environments For Simplified Reservoir Characterization Models, Atheer Mohammad Al Attar
LSU Master's Theses
Reservoir characterization is one of the most important tasks that determines the recovery plan for a specific reservoir. This process incorporates a significant amount of data acquisition and processing to finally develop an acceptable model that matches the production history and can forecast the future production behavior. The model also should be able to adapt to changes along the way: adding or removing producers or injectors, changing the injection pattern, recompletions and converting wells are all examples of possible changes that are common in the oil and gas industry. Usually these changes are modeled by running field-scale simulations and providing …
Effects Of Different Preparation Methods On Structure And Catalytic Behavior Of Iron-Based Catalyst Via Fischer Trospch Synthesis Of Biomass-Derived Syngas, Khietlethanh Mai
Effects Of Different Preparation Methods On Structure And Catalytic Behavior Of Iron-Based Catalyst Via Fischer Trospch Synthesis Of Biomass-Derived Syngas, Khietlethanh Mai
LSU Master's Theses
Lignocellulosic biomass is a promising feedstock for producing liquid fuels via synthetic gas (syngas) and Fischer Tropsch Synthesis (FTS). Syngas produced from biomass has low H2/CO ratio (~0.7/1) and high concentration of CO2. In order to produce liquid hydrocarbons from this syngas, a catalyst must be used to increase the H2/CO ratio to 2 or higher. This catalyst must also have reasonable reverse water-gas-shift (R-WGS) activity in a CO2 rich environment. In this study, two 100Fe/4Cu/4K/6Zn were prepared using coprecipitation (Cat_C) and impregnation (Cat_I) methods. The effects of these preparation methods on the catalyst structure and FTS performance in biomass …
Investigation Of Dimensionality-Dependent Foam Rheological Properties By Using Mechanistic Foam Model, Woochan Lee
Investigation Of Dimensionality-Dependent Foam Rheological Properties By Using Mechanistic Foam Model, Woochan Lee
LSU Master's Theses
A numerous laboratory and field tests revealed that foam can effectively control gas mobility, improve sweep efficiency, and increase oil production, if correctly designed. It is believed that there is a significant gap between small laboratory-scale experiments and large field-scale tests because of two main reasons: (i) typical laboratory flow tests are conducted in linear systems, while field-scale foam EOR processes are performed in radial (or spherical partly) systems in general; and (ii) through the complicated in-situ lamella creation and coalescence mechanisms and non-Newtonian behavior, foam rheology is thought to depend on geometry and dimensionality and, as a result, it …
Modeling The Effect Of Gusty Hurricane Wind Force On Vehicles Using The Lsu Driving Simulator, Jose Manuel Rodriguez
Modeling The Effect Of Gusty Hurricane Wind Force On Vehicles Using The Lsu Driving Simulator, Jose Manuel Rodriguez
LSU Master's Theses
While traffic planning is important for developing a hurricane evacuation plan, vehicle performance on the roads during extreme weather conditions is critical to the success of the planning process. This study was designed to lay a foundation for modeling driving behavior and vehicle performance as an assessment tool in the decision making process for planning evacuation routes during hurricane and tropical storms. The study explores how the parameters of a driving simulator could be modified to reproduce wind loadings experienced by three vehicle types (a passenger car, an ambulance, and a bus) during gusty hurricane winds, through manipulation of appropriate …
Experimental Assessment Of Cement Integrity Under Thermal Cycle Loading Conditions In Geopressured Geothermal Reservoirs, Kolawole Saheed Bello
Experimental Assessment Of Cement Integrity Under Thermal Cycle Loading Conditions In Geopressured Geothermal Reservoirs, Kolawole Saheed Bello
LSU Master's Theses
The number of well integrity issues increase as wells are exposed to severe downhole conditions and have longer lifetimes. Techniques for heat extraction from geopressured geothermal reservoirs involve production of hot water and injection of cold water which expose downhole materials to harsh cyclic temperature variations. Heating and cooling make the cement expand and contract as a result of thermal expansion. This volumetric change can influence cement sheaths causing them to fail. Failure of annular cement sheaths can introduce well integrity issues and subsequently lead to sustained casing pressure. This study measures the effect of cyclic thermal loading of cement …
Pah Degradation In Wetland Soils As Influenced By Redox Potential, Haoxuan Zhang
Pah Degradation In Wetland Soils As Influenced By Redox Potential, Haoxuan Zhang
LSU Master's Theses
Polycyclic aromatic hydrocarbons (PAHs) are a common contaminant in wetland soils. They are a group of compounds widely distributed in the environment and tend to accumulate in soils. Major contribution to removal of PAHs is biological degradation. For investigating the biodegradation potential of PAHs influenced by tidal actions, equipment was built for simulating the tidal actions, and concentrations of phenanthrene, pyrene, and benzo[e]pyrene were added to the soils samples which were collected from wetland. Experiments were then conducted over 120 days. Redox potentials and PAHs concentrations were measured and analyzed. Results are concluded: 1) influenced by tidal action, phenanthrene, pyrene, …
Silver Nanoparticle Oligonucleotide Conjugate For Targeted Gene Silencing, Alyson Nanette Moll
Silver Nanoparticle Oligonucleotide Conjugate For Targeted Gene Silencing, Alyson Nanette Moll
LSU Master's Theses
This project explored a gene-regulated chemotherapy using a silver nanoparticle (SNP) conjugated with deoxyribozyme (DNAzyme) oligonucleotides which target a mutated gene in select cancer cells, sensitize them to doxorubicin treatment. Light exposure to the SNP-DNAzyme conjugates disengages the oligonucleotides and permits specific cleavage of the Kirsten Rat Sarcomal Oncogene Homolog (K-RAS) mRNA. These conjugates could provide spatiotemporal specificity in killing only those photoexposed cells with the mutant gene. Synthesis, functionalization and characterization of citrate and hydroxypropyl cellulose SNP conjugates confirmed attachment and photolytic release of the thiol-modified 10-23 DNAzyme. Gel electrophoresis was used to demonstrate DNAzyme photoactivation, showing greater K-RAS …
A Parametric Investigation Of A Novel, Modular, Gasketless, Microfluidic Interconnect Using Parallel Superhydrophobic Surfaces, Christopher Ramsey Brown
A Parametric Investigation Of A Novel, Modular, Gasketless, Microfluidic Interconnect Using Parallel Superhydrophobic Surfaces, Christopher Ramsey Brown
LSU Master's Theses
The gasketless microfluidic interconnect has the potential to offer a standardized approach to interconnects between modular microfluidic components. This strategy uses parallel superhydrophobic surfaces (contact angle ≥ 150ᴼ) to passively seal adjacent, concentric, microfluidic ports separated by an air gap using a liquid bridge created between the chips. The parallel superhydrophobic surfaces do not require the addition of a gasket or other additional components so that the assembly process scales favorably with an increasing number of fluidic interconnects. The gasketless seal does not contribute to geometric constraint between the component chips which allows alignment between chips to scale favorably with …
Cyber-Physical Security Strategies, Sarah Davis
Cyber-Physical Security Strategies, Sarah Davis
LSU Master's Theses
Cyber-physical security describes the protection of systems with close relationships between computational functions and physical ones and addresses the issue of vulnerability to attack through both cyber and physical avenues. This describes systems in a wide variety of functions, many crucial to the function of modern society, making their security of paramount importance. The development of secure system design and attack detection strategies for each potential avenue of attack is needed to combat malicious attacks. This thesis will provide an overview of the approaches to securing different aspect of cyber-physical systems. The cyber element can be designed to better prevent …
A Sustainable Remediation Approach For Complete Destruction Of Chloroethanes In Groundwater, Michael Joseph Cheatham
A Sustainable Remediation Approach For Complete Destruction Of Chloroethanes In Groundwater, Michael Joseph Cheatham
LSU Master's Theses
An up-flow column study was operated in a greenhouse composed of a sand/peat mixed media to investigate the effectiveness of an aerobic zone on the disappearances of chloroethane. The oxygen was supplied by mean of porous Silastic tubing under pressure with a breathing air gas cylinder. Chloroethane was generated via reductive dechlorination of 1,1,1-trichloroethane (TCA) and 1,1-dichloroethane (DCA) in anaerobic bioreactors (ABRs). The columns study was conducted with two duplicate reactors (operated in parallel) that underwent separate perturbations of breathing air introduction. Aqueous samples were collected in 160 mL microcosm bottles and analyzed on a GC equipped with a Flame …
Association Of Lean Implementation On Perceived Organizational Maturity Levels Of Managers And Staff In The Public Sector, Patrick Eduardo O'Mara
Association Of Lean Implementation On Perceived Organizational Maturity Levels Of Managers And Staff In The Public Sector, Patrick Eduardo O'Mara
LSU Master's Theses
Extensive research has shown the impact of Lean implementation at the process level of an organization to increase quality, reduce cycle time, and reduce operational costs. However, little research has been done to associate Lean with improvement at the strategic level of an organization. The objectives of the present research were to (a) study the association of Lean implementation with maturity levels of employees (b) study the relationship between Lean implementation in the levels of agreement with cohesion between managers and staff in evaluating perceived current state and desired state of organizational practices (c) identify potential barriers of Lean implementation …
Evaluating The Influence Of Moisture Variation On Resilient Modulus For Unsaturated Pavement Subgrades, Ayan Mehrotra
Evaluating The Influence Of Moisture Variation On Resilient Modulus For Unsaturated Pavement Subgrades, Ayan Mehrotra
LSU Master's Theses
The cost of repairing pavements that fail before the end of their service life is enormous in the United States and it is continuously rising. Premature pavement failure is often associated with loss of support in the subgrade layer, especially in regions with fine-grained subgrade soils. Resilient modulus (Mr) is analogous to the stiffness of a subgrade and a key design parameter for pavements. Due to seasonal variation, Mr varies periodically due to changes in moisture content. However, Mr depends not only on moisture content but also the stress state of the subgrade, which for unsaturated soils is dependent on …
Fabrication And Enhancement Of Aluminum-Based Microchannel Devices, Paul Joseph Hymel
Fabrication And Enhancement Of Aluminum-Based Microchannel Devices, Paul Joseph Hymel
LSU Master's Theses
Microscale molding replication and transient liquid phase (TLP) bonding were used to fabricate Al-based microchannel heat exchangers (MHEs) and micro gas chromatograph (mGC) columns. Metal-based microchannel heat exchangers often experience corrosion as a result of their operating conditions. To address this problem, an internal anodization method was developed in Al microtubes by pulsing the flow of electrolyte through a microtube when the current dropped below a set value. The anodic aluminum oxide (AAO) films were characterized by scanning electron microscopy (SEM), focused ion beam (FIB) cross sections, and X-ray energy dispersive spectroscopy (EDS) to determine their growth rate and morphology. …
Removal Of Sustained Casing Pressure By Gravity Displacement Of Annular Fluid, Efecan Demirci
Removal Of Sustained Casing Pressure By Gravity Displacement Of Annular Fluid, Efecan Demirci
LSU Master's Theses
Sustained Casing Pressure (SCP) is the undesirable casing head pressure of a well annulus that rebuilds when bled-down. As the conventional methods for SCP removal using rigs are expensive, there is a need for improvement. Annular intervention for replacing the fluid above the leaking cement with a heavier fluid to stop gas migration is a solution for SCP removal; however, previous attempts failed due to miscibility of injected fluids. Using hydrophobic heavy fluids for the purpose is a newly proposed technique to the technology. Potential of theoretically selected and produced immiscible heavy fluids are investigated in characterized annular fluids. A …
Effect Of Process Mixing On The Size Distribution And Mean Diameter Of The Thiol-Triacrylate Microcapsules, Rubaiyet Abedin
Effect Of Process Mixing On The Size Distribution And Mean Diameter Of The Thiol-Triacrylate Microcapsules, Rubaiyet Abedin
LSU Master's Theses
An important limitation in the development of the microparticles is the difficulty to develop a precise size distribution. Microparticles have a wide spread applicability in different fields including medical, pharmaceutical, textile, cosmetics, pesticide, printing industry, etc. The large and growing impact of microencapsulation in different fields of technology has made this process important. Microparticle size is a primary determinant of control release mechanism and the reaction kinetics and also impacts the allowable routes of administration, The main objective of this research work is to evaluate the effect of the process mixing on the size and size distribution of the trithiol-triacrylate …
G-Box Model For The Fate Of Emerging Contaminants In Soil, Eileen Cranfield
G-Box Model For The Fate Of Emerging Contaminants In Soil, Eileen Cranfield
LSU Master's Theses
Pesticides applied to agriculture fields move and react into the soil system. The objective of this research was to develop a model that uses the natural soil processes (diffusion, advection, or reaction type processes in multiple phases) to track pesticides and other emerging contaminants (EMCONs) in the soil over space and time. The model separates the soil into a series of boxes with soil processes passing through and into the boxes. With a system of equations developed from these processes, the model produces a gradient concentration profile, hence the Gradient Box, or G-box Model. The model is first tested against …
Field And Numerical Investigation Of Wave Power And Shoreline Retreat In Terrebonne Bay, Southern Louisiana, Kyle Ryan Parker
Field And Numerical Investigation Of Wave Power And Shoreline Retreat In Terrebonne Bay, Southern Louisiana, Kyle Ryan Parker
LSU Master's Theses
The marshland in southern Louisiana is a vital resource that many people and wildlife depend on. Terrebonne Bay was chosen for this research because it has experienced one of the largest wetland loss rates among Louisiana estuaries. Investigations of wave power and shoreline retreat rate could provide decision makers with a better understanding of the contributing wave force responsible for local shoreline retreat. A strong relationship has been shown to exist between wave power and shoreline retreat [Schwimmer (2001) and Marani et al. (2011)]. Whether or not this strong relationship exists in Terrebonne Bay is the subject of this research. …
Influence Of Magnetic Fields On The Evaporation And Combustion Of A Single Droplet, Domingo Elias
Influence Of Magnetic Fields On The Evaporation And Combustion Of A Single Droplet, Domingo Elias
LSU Master's Theses
The reliance on combustion as the primary source of energy will continue in the US for the next thirty years [1]. Experiments suggest that the use of magnetic fields can be one tool in the many-sided approach to the problem of environmental protection and energy conservation in the US. For instance, it is estimated that an increase in efficiency of 2% in spray combustion can save the US economy billions of dollars [2]. In this thesis I report on improving the quality of combustion through the use of magnetic fields. (1)I investigated the effects of magnetic fields on the evaporation …
Determining The Location Of Congestion Hot Spots In Urban Areas Using Image Analysis, Aditya Mokkapati
Determining The Location Of Congestion Hot Spots In Urban Areas Using Image Analysis, Aditya Mokkapati
LSU Master's Theses
The identification of congestion hot spots plays an important role in congestion monitoring of highway and arterial systems. Traditionally, vehicle detection systems or probe vehicles are used to measure travel time and identify congestion hot spots. This approach is time-consuming and resource intensive. With the advent of new technologies like crowdsourcing, travel time can be collected more cost-effectively using fewer resources. The research presented in this paper develops a new methodology to identify congestion hot spots in an urban area using freely available historical speed data gathered by Google and published as a traffic layer in Google maps. The methodology …
Uptake And Deposition Of Pyrogenic And Petrogenic Pahs On Spartina Alterniflora, Yasmin Mohammad
Uptake And Deposition Of Pyrogenic And Petrogenic Pahs On Spartina Alterniflora, Yasmin Mohammad
LSU Master's Theses
Saline marshes dominated by Spartina alterniflora were impacted by MC252 crude oil along Louisiana’s shoreline. Two locations were evaluated in this study; a lightly oiled, saline marsh near Port Fourchon, LA and a less saline, heavily oiled marsh near Bay Jimmy in the Barataria Basin, LA. Objectives of this study were to develop a method to extract polycyclic aromatic hydrocarbons (PAHs) from Spartina leaves and to compare and contrast the relative uptake and deposition of petrogenic and pyrogenic PAHs in Spartina leaves. A three-step sequential extraction procedure was developed for the extraction and analysis of PAHs on Spartina leaves. In …
Chronic Toxicity Of Nano Metallics On Red Swamp Crayfish (Procambarus Clarkii) In Laboratory And Mesocosm Studies, Jake Andrew Farlow
Chronic Toxicity Of Nano Metallics On Red Swamp Crayfish (Procambarus Clarkii) In Laboratory And Mesocosm Studies, Jake Andrew Farlow
LSU Master's Theses
Nanotechnology has become integrated in commercial, industrial and medical products, and its use has grown exponentially in the past several years. Although potential applications of nanoparticles (NPs) are numerous, concerns about their water quality, environmental, and human health impacts remain unclear. Crayfish are ubiquitous to streams and wetland habitats, are used as a food source, and inhabit areas that could be impacted by water quality issues. Numerous studies have been conducted on the toxicity of various classes of agricultural pesticides and oils to crayfish (Procambarus clarkii) as a non-target organism. However, there is little evidence published on chronic toxicity of …
Design Of A Multi-Agent System For Process Monitoring And Supervision, Onur Dogu
Design Of A Multi-Agent System For Process Monitoring And Supervision, Onur Dogu
LSU Master's Theses
New process monitoring and control strategies are developing every day together with process automation strategies to satisfy the needs of diverse industries. New automation systems are being developed with more capabilities for safety and reliability issues. Fault detection and diagnosis, and process monitoring and supervision are some of the new and promising growth areas in process control. With the help of the development of powerful computer systems, the extensive amount of process data from all over the plant can be put to use in an efficient manner by storing and manipulation. With this development, data-driven process monitoring approaches had the …
Integrating Recycled Glass Cullet In Asphalt Roof Shingles To Mitigate Heat Island Effect, Micah Kiletico
Integrating Recycled Glass Cullet In Asphalt Roof Shingles To Mitigate Heat Island Effect, Micah Kiletico
LSU Master's Theses
As an approach to mitigate the harmful effects of Urban Heat Island (UHI), the use of glass cullet in the production of asphalt roof shingles has the potential to be employed as a cool roof strategy. The objective of this study was to test the hypothesis that the use of recycled glass increases solar reflectance index (SRI) without affecting the performance of asphalt roof shingles. In order to evaluate the feasibility of recycled glass for alternative uses, the engineering properties of glass cullet were investigated and compared to conventional aggregates used in the production of asphalt roof shingles. Laboratory samples …