Architecture Commons^™

Kinetic Modeling Of Electrostatic Sieving For Lunar Regolith Beneficiation: Case Studies, Easton Ingram, Emmanuela Amen Eze, Jeffrey Smith, Fateme Rezaei, David Bayless, William Schonberg, Daoru Han

Materials Science and Engineering Faculty Research & Creative Works

A new kinetic particle modeling framework was developed to investigate electrostatic transport of lunar regolith particles with applications to the concept of electrostatic sieving. The new approach is based on kinetic particle dynamics and includes major modules of sampling the particle size distribution, solving electric fields, and tracking motion of charged dust grains. Case studies for a concept of electrostatic sieving were chosen to validate the new model. The simulation achieved similar yields reported in previous works, which served as validation of the model. The new model is computationally efficient and could serve as a design, analysis, and optimization tool.

Biobased Construction From Agricultural Crops: Paper 2 - Supply Chain Dynamics Of European Case Studies, Patrick Daly, Paula G. Barril

Articles

Energy security, economics and environmental factors are key drivers toward greater energy efficiency, decarbonisation and circularisation of the building sector.

Bio-based construction provides a potential low carbon and circular strategy toward these aims, as these materials can sequester carbon, are derived from renewable and nontoxic sources and can be re circulated in either technical or bio cycles.

This innovative research undertakes a state of play into select agri-crop biobased construction materials, products and systems across Europe focusing on their supply chain types and dynamics.

The research is based on a multi case study applying a range of mainly qualitative research …

Photogrammetry-Based Method For Measuring Volume Changes Of Soil Specimens During Critical Phases Of Triaxial Testing, Sara Fayek, Xiong Zhang, Pingxin Xia

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Triaxial tests has been routinely used to measure the stress–strain relationship for geomaterials. During triaxial testing, many sources of errors that cannot be completely avoided but are often ignored or approximated using empirical equations. This paper presents a systematic investigation of soil volume change, volume strain nonuniformity, and cross-sectional calculation along the specimen during triaxial testing using a photogrammetry-based method. Consolidated drained triaxial tests were performed in which two parallel measurements were taken: (1) relative volume using the conventional triaxial testing and (2) absolute volume using the photogrammetry-based method. The difference in the observed volume and void ratio measurements between …

Effect Of Concrete Mix Design Factors On Static Yield Stress Changes Due To Vibration, Ahmed Abd El Fattah, Dimitri Feys, Kyle Riding, Syed Imran

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Digital fabrication of concrete structures has gained substantial research traction over the last decade, enabling efficient material use and adding more architectural freedom. Current research focuses on chemical and mineral admixtures, as well as manipulating the cement hydration reaction to control the yield stress evolution with time in the cement paste. Instead of providing yield stress through the concrete fluid properties, a high yield stress can be provided by interparticle friction from the use of high aggregate volumes and large nominal maximum aggregate size, with flow enhanced for material extrusion by vibration. Granular physics was applied to concrete mixture design …

The Hydration, Microstructure, And Mechanical Properties Of Vaterite Calcined Clay Cement (Vc³), Yaqiang Li, Yue Li, Hongyan Ma, Jiaqi Li

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Limestone (calcite) calcined clay cement (LC3) is a promising low-CO2 binder, but the low activity of calcite cannot compensate the reduction in clinker factor, resulting in low one-day strength and limiting its broad applications. As recent carbon capture and utilization technologies allow scalable production of vaterite, a more reactive CaCO3 polymorph, we overcome the challenge by introducing vaterite calcined clay cement (VC3), inspired by the vaterite-calcite phase change. In the present study, VC3 exhibits higher compressive strengths and faster hydration than LC3. Compared to hydrated LC3, hydrated VC3 exhibits increased amount of hemi- and mono-carboaluminate formation and decreased amount of …

Quantifying The Role Of Insurance In Tornado-Impacted Community Recovery: A Survey And Simulation-Based Approach, Jie Zhao, Ji Yun Lee, Guirong Grace Yan, Fangjiao Ma

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Insurance against disasters plays a critical role in community recovery by providing policyholders with reliable and timely payments for repairing or reconstructing damaged houses. By allowing homeowners to transfer risk, insurance enables homeowners to address house without experiencing significant financial burdens. Although historical events have highlighted the importance of insurance, its quantitative impact on community recovery, particularly in tornado-impacted communities, is understudied. This study focuses on advancing our understanding of whether sufficiently insured houses can have a positive impact on the recovery of tornado-impacted communities (i.e., the main research question). This paper proposes a two-stage simulation framework to quantitatively evaluate …

El Pequeño Riego De México: Puebla, Morelos, Y Baja California Sur, José A. Rivera Ph.D.

Faculty Publications

Small to medium-sized irrigation systems in México are characterized in the literature as El Pequeño Riego. Some systems can be compared to those in northern New Mexico and southern Colorado, while others are significantly larger and more complex. Regardless of irrigated acres or hectáreas, however, there are many elements that are commonly shared across these regions. Firstly, the irrigation works are based on the use of acequias dug from the earth that need to be maintained and cleaned season to season. The terms canals and acequias are interchangeable. Secondly, the irrigators themselves, whether called parciantes or regantes, take …

Community-Centric Approaches To Coastal Hazard Assessment And Management In Southside Norfolk, Virginia, Usa, Dalya Ismael, Nicole Hutton, Mujde Erten-Unal, Carol Considine, Tancy Vandecar-Burdin, Christopher Davis, Yin-Hsuen Chen

Engineering Technology Faculty Publications

Urban communities in environmentally sensitive areas face escalating challenges due to climate change and inadequate infrastructural support, particularly in underserved regions like southside Norfolk, Virginia. This area, characterized by its vulnerability to flooding and a predominantly low-income population, lacks equitable inclusion in broader urban flood protection plans. This research focuses on the development of community-centered resilience strategies through active engagement and collaboration with local residents. The methodology centered around building trust and understanding within the community through a series of interactions and events. This approach facilitated a two-way exchange of information, enabling the research team to gather crucial insights on …

New York State Climate Impacts Assessment: 04 Buildings, Nicholas B. Rajkovich, Carrie Brown, Ilya Azaroff, Erik Backus, Shannon Clarke, Jared Enriquez, Bethany Greenaway, Meghan T. Holtan, Jamal Lewis, Ozgem Ornektekin, Laurie Schoeman

Publications and Research

New York State has nearly 5.3 million buildings, and all of them are vulnerable in some way to the impacts of climate change. Understanding these impacts is critical, because risks to buildings not only threaten individual lives but also pose threats to community-level resilience. This chapter examines the impacts of climate change on buildings and, by extension, the people and communities they shelter and support. It also highlights building types and populations that are at particular risk and presents adaptation strategies to protect the state’s existing and future building stock from climate impacts.

Project Information Standard – File Naming, Robert Moore

Tools

Project Information Standard – File Naming is a support in a spreadsheet format that contains a number of templates that give guidance on file naming in accordance with the Irish National Annexe to ISO 19650-2.

Build Digital has created Industry templates to allow organisations work in accordance with ISO 19650. These templates start to address the information requirements in the ISO 19650 series of standards. The templates are also in accordance with CEN-TR17654-2021” Guideline for the implementation of Exchange Information Requirements (EIR)and BIM Execution Plans (BEP) on European level based on EN ISO 19650-1 and -2”. Aspects of the Templates …

Information Management Plan - Organisational, Robert Moore

Tools

Information Management Plan – Organisational, is a support in a spreadsheet format that contains a number of client templates that ISO 19650 recommend the Employer/Client/Sanctioning authority should consider before starting a delivery project for an Asset.

Build Digital has created Industry templates to allow organisations work in accordance with ISO 19650. These templates start to address the information requirements in the ISO 19650 series of standards. The templates are also in accordance with CEN-TR17654-2021” Guideline for the implementation of Exchange Information Requirements (EIR)and BIM Execution Plans (BEP) on European level based on EN ISO 19650-1 and -2”. Aspects of the …

Information Management Plan – Appointing Party, Robert Moore

Tools

Information Management Plan – Appointing Party is a support in a spreadsheet format that contains a number of client templates that ISO 19650 recommend the Employer/Client/Sanctioning authority should consider when appointing a delivery team to a delivery project for an Asset.

Build Digital has created Industry templates to allow organisations work in accordance with ISO 19650. These templates start to address the information requirements in the ISO 19650 series of standards. The templates are also in accordance with CEN-TR17654-2021” Guideline for the implementation of Exchange Information Requirements (EIR)and BIM Execution Plans (BEP) on European level based on EN ISO 19650-1 …

La Ricarda Como Contexto Arquitectónico Y Simbólico De Las Prácticas Pioneras De J. M. Mestres Quadreny En El Origen Del Arte Sonoro En Cataluña, Isaac Diego García Fernández, Antoni Pizà Prohens

Publications and Research

Resumen

El presente estudio revisa y analiza la actividad artística desarrollada en La Ricarda o Casa Gomis (El Prat del Llobregat, Barcelona) durante la década de los años sesenta del siglo XX. Con ello, se pretende reflexionar sobre su relevante papel como espacio físico y simbólico en el impulso de prácticas creativas que pueden considerarse precursoras del actual campo del arte sonoro. En particular, se abordan diversas obras realizadas por el compositor catalán Josep Maria Mestres Quadreny (1929-2021), algunas de ellas en colaboración con el poeta experimental Joan Brossa (1919-1998), en el contexto de Música Oberta, iniciativa de conciertos …

Design And Performance Of Fiber-Reinforced Shrinkage Compensating Eco-Friendly Concrete, Kamran Aghaee, Kamal Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Eco-Crete is an ecological and economical concrete that benefits from high packing density of solid materials and reduced paste. Eco-Crete can enhance the service life of structures by reducing the risk of shrinkage cracking. In this study, shrinkage mitigating materials included an expansive agent (EA), a shrinkage reducing admixture (SRA), and a lightweight sand (LWS), as well as steel and synthetic fibers were used to minimize the risk of cracking. A total of 35 fiber-reinforced Eco-Crete mixtures were prepared with 350 kg/m3 of cementitious materials and 55 % substitution of fly ash and slag. Key fresh and mechanical properties in …

Prediction Of Self-Consolidating Concrete Properties Using Xgboost Machine Learning Algorithm: Part 1–Workability, Amine El Mahdi Safhi, Hamed Dabiri, Ahmed Soliman, Kamal Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Interest in Implementing Self-Consolidating Concrete (SCC) in Major Construction Projects Has Increased Significantly in Recent Years. This Paper Reports the Results of an Extensive Survey of Experimental Data of More Than 1700 SCC Mixtures from over 100 Studies Published in the Last Decade. the Survey Included the SCC Mixture Proportioning, Key Fresh Properties Including Flowability, Passing Ability, and Segregation Resistance, as Well as Some of the Derived Properties (E.g., Paste Volume). the Statistical Analysis of the Reported Parameters Showed Wide Variations in Values. the Outcome of the Survey Indicates that SCC Mixture Design and Workability Properties Do Not Systematically …

Effect Of A Geothermal Heat Pump System On Cooling Residential Buildings In A Hot, Dry Climate, Rania Rushdy Moussa, Ayman H. Mahmoud

Architectural Engineering

ABSTRACT In the last century, electricity demand has doubled due to urban expansion, which has contributed to the formation of more urban heat islands (UHI) and the appearance of environmental hazards such as the global climate change phenomenon. Since residential buildings are considered the main electricity consumer sector in Egypt, they consume up to 42% of total energy consumption, which contributes to increasing temperatures and constitutes UHI in cities. In this context, the research aims to examine the effectiveness of using the closed vertical loop geothermal system (GSHPCV) for cooling residential buildings in a hot, dry climate, such as Cairo, …

Mimar Sinan, Aleesha Hafeez

Publications and Research

Mapping The Theaters Of Brooklyn's Past (1825-1925): A Gis Project, Elena Shefsky

Publications and Research

Despite its rich performance culture, Brooklyn remains underrepresented in theater history, eclipsed in fame by the well-known theaters of Manhattan. One of the most populous areas in America, Brooklyn has been an artistic home to actors, playwrights, directors, and impresarios for centuries. That said, there is a dearth of accessible information and scholarship on Brooklyn theaters. My objective was to update an ongoing mapping project, The City Performs, to include information and images of theater buildings from Brooklyn. The project is an interactive, open-source digital map that uses ArcGIS software to georeference data about NYC theaters. I collected data …

Attitudes Of Experiential Designers Across Design Disciplines, Danielle Degarmo

Architecture Masters of Science Program: Theses

The expanded use of the term scenography is widening its understanding of the word to encompass many experiential design disciplines beyond its origin in theatre. At its essence, scenography is the culmination of a designer’s collaborative efforts to take a prompt, whether it be a client program, a script, or other, and produce a holistic assemblage of experiential design elements to spatially engage an end user. Many experts in across design fields have acknowledged that there is disciplinary cross over among those practicing in experiential design fields in terms of design output or intention. By means of designer surveys and …

Providing Optimal Resident Sleep Hygiene In Assisted Living Communities; Opportunities For Design And Operation Teams To Collaborate And Share Their Unique Knowledge, Beverly B. J. Miller

Architecture Masters of Science Program: Theses

Research is emerging relating sleep hygiene to disease pathogenesis including Parkinson's, dementia, Alzheimer’s disease and increased cardiovascular risk. The application of circadian science as it relates to human wellness has intensified as a result. The quality of sleep significantly impacts the wellness of residents living in long term care, however sleep hygiene research is lacking in assisted living (AL) communities.

The thesis question inquires; How can operation and design teams collaborate to optimize sleep health for residents in assisted living communities? The research methodology utilized a two-phase process. Phase I identified three AL communities as test sites, providing case studies …

Impact Of The Built Environment On The End-Of-Life Journey, Kelechi Akwazie

Masters in Architecture Program: Theses

Several research studies and personal anecdotes show that home-based hospice care patients report better quality of life than their inpatient care counterparts – suggesting that the location of care/built environment is a critical component of hospice care. As a result, other research studies have attempted to provide evidence-based design recommendations for inpatient hospice facilities; however, several of these recommendations either conflict with each other or are vaguely prescribed – which may dull any attempts to implement them.

This literature review takes a unique approach to the provision of evidence-based design recommendations for inpatient hospice facilities by holistically assessing hospice care, …

Scooting To A Brighter Tomorrow: Shared E-Scooters And Their Use In Lincoln, Nebraska, Tanner J. Hiemer

Community and Regional Planning Program: Theses

As a recent addition to our transportation systems, shared e-scooters have the potential to improve how people travel in the urban environment. While there is a lot to be hopeful about, the relative novelty of e-scooters calls for closer examination of how they interact with the built environment and other modes of transportation. Additionally, the equity of shared e-scooters must be at the forefront of discussion when considering their utility in the future. Given their flexibility in use, e-scooters could fill spatial gaps in transportation systems and provide improved mobility to those who are most transportation disadvantaged. This research aims …

Spatial Release From Masking In Anechoic And Reverberant Environments, Drake Andrew Hintz

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

Listening with both ears provides children with access to binaural and monaural cues that are helpful for understanding speech in competing babbles. Specifically, when the target and masker are spatially separated, children can gain an intelligibility benefit which is known as spatial release from masking (SRM). Recent work [Peng et al., 2021 JASA] suggested that school-age children demonstrated immature SRM using binaural cues that are distorted by reverberation. In this follow-up study, we further investigate the effect of reverberant distortion on individual auditory spatial cues, namely binaural and monaural head shadow cues. We compare SRM between adults and school-age children …

Rheological And Mechanical Properties Of Kenaf And Jute Fiber-Reinforced Cement Composites, Seongwoo Gwon, Seong Ho Han, Thanh Duc Vu, Chanyoung Kim, Myoungsu Shin

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study investigated the rheological and mechanical properties of cement composites with kenaf and jute fibers for use in shotcrete. The length and volume fractions of the fiber were varied; the rheological properties were analyzed in terms of air content, compression and flexural tests were conducted, and the degree of fiber dispersion was assessed using fluorescence microscopy. The rougher surfaces of the jute fibers led to a higher yield stress and viscosity of the composite compared to the kenaf fibers. The use of 10-mm-long jute fibers at 2.0% volume fraction led to optimal rheological properties while 30-mm-long jute fibers at …

Performance Of Co2-Cured Alkali-Activated Slag Pastes During Curing And Exposure, Yubin Jun, Seong Ho Han, Jae Hong Kim

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study investigated the efficiency of CO₂ curing in blast-furnace slag pastes activated with three concentrations of KOH solution (3, 4, and 5 M). The CO₂ curing was applied into the alkali-activated slag paste for 3 days. The CO₂-cured pastes were subjected to subsequent curing in a water bath or exposed to seawater. The mechanical properties and characteristics of the reaction products were compared. Full strength can be obtained within 3 days of the early CO₂ curing. The strength remained almost constant regardless of the activator concentration. The CO₂-cured samples produced more CaCO …

Truck Platooning Reshapes Greenhouse Gas Emissions Of The Integrated Vehicle-Road Infrastructure System, Huailei Cheng, Yuhong Wang, Dan Chong, Chao Xia, Lijun Sun, Jenny Liu, Kun Gao, Ruikang Yang, Tian Jin

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Reducing greenhouse gas emissions has turned into a pillar of climate change mitigation. Truck platooning is proposed as a strategy to lower emissions from vehicles on roads. However, the potential interactive impacts of this technology on road infrastructure emissions remain unclear. Here, we evaluate the decarbonization effects of truck platooning on the integrated vehicle-road system at a large-scale road network level, spanning 1457 road sections across North America. We show that truck platooning decreases emissions induced by truck operations, but it degrades faster the durability of road infrastructure and leads to a 27.9% rise in road emissions due to more …

Effectiveness Of The Different Eutectic Phase-Change Materials In Cooling Asphalt Pavement, Jiasheng Dai, Feng Ma, Zhen Fu, Jenny Liu, Chen Li, Yingjie Hou, Hanli Wu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Choosing a Phase-Change Material (PCM) Adapted to the Specific Phase-Change Temperature (Tm) Required for Each Temperature Condition is of Utmost Importance in Cooling Pavements. Eutectic Phase-Change Materials (EPCMs) Realize the Customization of the Desired Tm and Reduce the Difficulty of Matching PCMs. This Work Aims to Investigate the Effectiveness of a Group of Binary/ternary EPCMs with Tm Ranging from 30 to 60 ℃ and Melting Enthalpies of Around 200 J/g as Thermal Regulation Components for Different Asphalt. to Achieve This Goal, the Thermal and Rheological Properties of Phase-Change Asphalt Binders (PCAB) Were Evaluated by Differential Scanning Calorimeter, Thermogravimetric, Fourier Transform …

Teaching The Equivalent Rectangular Stress Block, J. Chris Carroll, Ben Dymond, Anahid Behrouzi

Architectural Engineering

The equivalent rectangular stress block is the basis for determining the flexural strength of reinforced concrete members. Instructors commonly present the concept in two dimensions, contrary to its three-dimensional nature. Unfortunately, this can be particularly difficult for students to understand and visualize, especially for students with visual learning style preferences. This paper presents an overview of the equivalent rectangular stress block, select active learning methods, and four specific examples used by the authors to introduce the equivalent rectangular stress block in an undergraduate reinforced concrete design course. The first method focuses on understanding the terms associated with the equivalent rectangular …

Digital Construction Annual Survey 2022 Report, Davitt Lamon, Ted Mckenna

Reports

The Annual Survey 2022 was conducted to assess the state of digital transformation in the Irish construction and built environment sector. This report presents the analysis of survey data, with a focus on implications for the Build Digital project and Build Digital’s five pillars: Digital Leadership & Cultural Change, Digital Standards, Digital Education & Training, Digital Procurement, and Sustainability & Circular Economy. Key findings from the survey indicated that a significant number of organisations have started their digital transformation journey, with many identifying themselves as proactive and possessing a clear business-focused strategy. However, a considerable cohort of respondents are keen …

Sustainability And Circular Economy Horizon Scan And Needs Analysis, Sadaf Dalirazar, Mark Kelly, Derek Sinnott, James O'Donnell

Reports

The construction industry plays a crucial role in addressing the climate crisis as it is the largest global consumer of raw materials and contributes significantly to global energy consumption and emissions. Considering the world’s continuous population growth and the imperative to address infrastructure and housing demands the construction sector needs to adopt further sustainable strategies in its activities to reduce the pressure on natural resources. In addition, the Architecture, Engineering, and Construction (AEC) sector is responsible for generating substantial amount of waste known as Construction and Demolition Waste (CDW), which is projected to increase due to the future construction developments. …