Architecture Commons^™

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 …

Enhancing Comfort And Sustainability: Analyzing The Impact Of Natural Ventilation And Eco-Friendly Materials On Indoor Temperature Reduction, Hyo Won Lee

UNF Graduate Theses and Dissertations

As the world grapples with issues such as increasing energy consumption, climate change, and environmental degradation, the need for sustainable solutions is becoming more and more urgent. In this context, passive cooling has emerged as one of the promising approaches to achieve energy efficiency in various sectors. This research study the basic concept of passive cooling to new buildings to identify synergies in energy savings when reducing temperature inside buildings and applying eco-friendly materials, and to explore potential benefits for promoting sustainable development. By analyzing existing research, case studies, and technological advancements, this study seeks to highlight the feasibility and …

2023 Scholarly Productivity Report, Missouri University Of Science And Technology

Civil, Architectural and Environmental Engineering Scholarly Productivity Reports

No abstract provided.

Interacting Action Of Alkali-Silica Reaction And Chloride-Induced Steel Corrosion On The Reinforced Concrete Structures – A Critical Review, Williams Dunu

CSID Journal of Infrastructure Development

The degradation of reinforced concrete (RC) structures amidst the progression of corrosion within alkali-silica reaction (ASR)-affected structures is a complex phenomenon marked by diverse causal factors and repercussions. While the initiation phase of chloride-induced steel corrosion and ASR in RC structures has received extensive scrutiny, insufficient attention has been dedicated to comprehending the propagation phase (tp). Therefore, this study addresses this gap by centering its focus on the propagation phase, driven by the imperative need to formulate efficient and sustainable maintenance, repair, and management strategies for RC structures grappling with the concurrent impacts of degradation mechanisms such as ASR and …

The Impact Of Adopting Digital Twins In Urban Development, Mohammed Ali Berawi, Perdana Miraj, Mustika Sari

CSID Journal of Infrastructure Development

The construction industry, which plays a pivotal role in urban development, has undergone a significant transformation in recent years. This transformation is largely marked by the rise of digitalization, a phenomenon fundamentally altering how we design, construct, and operate our urban environments. At the forefront of this paradigm shift is the notion of Digital Twins (DT), which entails a dynamic and virtual representation of tangible assets. Urban development has witnessed a growing adoption of this innovative approach to improve cities' infrastructure planning, construction, and management. Digital Twin enables real-time simulation and monitoring, enhancing performance and more informed decision-making. Therefore, implementing …

Assessment Of Infrastructure Development Approach In Newly Created Districts In Zambia: Case Study, Chimanga Kabwe, Musonda Innocent, Franco Muleya

CSID Journal of Infrastructure Development

This article evaluates the infrastructure development plans in Zambia's newly established districts, primarily focusing on assessing their effectiveness. Infrastructure development encompasses various strategies, and this study investigates the factors influencing the selection of these strategies for implementing infrastructure projects in Zambia. Through structured interviews and questionnaires distributed to 500 respondents, the research highlights the critical role of community involvement. Communities play a pivotal role in identifying essential amenities, setting priorities for infrastructure construction, incorporating their ideas, and participating in the planning process for executing infrastructure projects. The analysis reveals that community members held varying perspectives on the significance of infrastructure …

The Effect Of Walnut Shell Ash On The Properties Of Cement Paste And Mortar: A Study On Partial Replacement Of Cement, Ali Shebli, Jamal Khatib, Adel Elkordi

BAU Journal - Science and Technology

In the pursuit of a more sustainable future, the utilization of agricultural waste in cementitious products has emerged as a popular and effective solution. The current study explores the feasibility of incorporating ash derived from walnut nutshells, considered agro residues, into eco-friendly blended cement paste and mortars to examine its impact on their properties. A range of blended cement mixtures was formulated by incorporating walnut shell ash (WSA) in three varying proportions of 5%, 10%, and 15% relative to the weight of the cement. Tests were conducted to investigate the properties of the blended cement paste and mortar incorporating WSA, …

Molybdenum Versus Tungsten Based Polyoxometalates For Highly Effective Methylene Blue Removal, Roula Abi Saad, Ghassan Younes, Mohammad H. El- Dakdouki, Rami Al-Oweini

BAU Journal - Science and Technology

[SiW₁₂O₄₀]^4-(SiW₁₂) and [Mo₈O₂₆]^4- (Mo₈) were synthesized and characterized by Fourier Transform Infrared spectroscopy (FTIR). The prepared polyoxometalates were studied as potential adsorbents for the removal of methylene blue (MB) from an aqueous solution. Various operational parameters—contact time, adsorbent dose, initial dye concentration, pH, and temperature— were meticulously assessed by UV/Vis spectrophotometry to study its impact on the adsorption efficacy. An inverse relationship was observed between the percentage dye removal and the initial dye concentration, highlighting the complexes' superior adsorption capabilities under lower dye loads. The …

Optimization Of The Bio-Synthesis Of Magnesium Nanoparticles From Staphylococcus Haemolyticus: A Pilot Study, Mariam Bassam, Malak Mezher, Mahmoud Khalil

BAU Journal - Science and Technology

Nanotechnology is developing rapidly. This field has many influences in humans’ life. Nanoparticles (NPs) have many unique properties including the size, shape, morphology, and surface area. The synthesis of NPs could be achieved by three ways: physical, chemical, and biological. However, the biological synthesis of NPs has a priority on the other domains due to its safety and environmental friendship. In this regard, the main objective of this study was to synthesize magnesium (Mg) NPs from the bacterium S. haemolyticus which was isolated from the Lebanese wastewater. Different parameters were applied to detect the best conditions to produce the highest …

Volar V-Y Advancement Flaps In Reconstructing Fingertip Injuries, Sawsan Abiad

BAU Journal - Science and Technology

Fingertip injuries with exposed bones and joints require immediate or early closure for the preservation of function and avoidance of complications. The ideal procedure should maintain the length of the finger and cover the defect with non-tender, well-padded skin with normal sensation. The aim of this study was to evaluate the role of the different types of volar V-Y advancement flaps in reconstructing and resurfacing injuries of the fingertips at different levels and angles. Thirty patients (N=30) sustaining fingertip injuries of variable etiology and lost components, type III & IV according to Allen’s classification were divided into two groups (n=15) …

Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia

Journal of Nonprofit Innovation

Urban farming can enhance the lives of communities and help reduce food scarcity. This paper presents a conceptual prototype of an efficient urban farming community that can be scaled for a single apartment building or an entire community across all global geoeconomics regions, including densely populated cities and rural, developing towns and communities. When deployed in coordination with smart crop choices, local farm support, and efficient transportation then the result isn’t just sustainability, but also increasing fresh produce accessibility, optimizing nutritional value, eliminating the use of ‘forever chemicals’, reducing transportation costs, and fostering global environmental benefits.

Imagine Doris, who is …

An Ensemble Dnn Model For Automatic Detection Of Covid-19 From Cxr Scans, Hagar Hesham Eldawoudy, Mohamed Abdelazim Mohamed, Eman Abdelhalim

Mansoura Engineering Journal

The new coronavirus 2019 (COVID-19) pandemic has been destructive to human life and has resulted in a significant number of deaths globally. Detecting COVID-19 as early as possible is a critical way to prohibit the virus from quickly passing among people. RT-PCR is a method used for COVID-19 detection, but it is very expensive and isn’t an accurate method due to its sensitivity of 60–70%. For these reasons, deep learning and imaging techniques are combined by doctors, scientific experts, and professionals for accurate and rapid COVID-19 detection. In this work, we propose a stacked ensemble model based on Linear Regression …

The Complexities Of Green Infrastructure, Troy Weber

Purdue Journal of Service-Learning and International Engagement

The Wabash River is the most extensive river system in Indiana. The river drains two-thirds of Indiana’s 92 counties, which can have issues associated with stormwater runoff (Weist, 1981). As precipitation runs off impervious surfaces, it can carry high concentrations of pollutants, such as excess nitrogen and phosphorus, pet waste, and automobile fuel. Prior to impervious runoff entering the river, preexisting contaminants include industrial waste (acid mine drainage and oil field brines), municipal waste, and sediment (Weist, 1981). Thus, stormwater runoff can negatively impact the Wabash River watershed. On top of this pollution, Lafayette and West Lafayette have combined sewer …

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 …

Reducing Scour Hole Dimensions Around Bridge Circular Piers Using Hexagonal Collars, Heba Kassem, El-Masry A. A, Reda Diab

Mansoura Engineering Journal

Bridge failure, due to local scour at bridge circular pier foundations, has become a critical issue in river and bridge engineering, which might lead to transportation disruption, loss of lives and economic problems. Based on an experimental perspective, this study is focused on the influence of collar’s shape on decreasing scour depth at bridge piers that were explored. Hexagonal collars with three shapes were investigated (sloped, sloped with holes, and sloped with ribs). The collars were installed on the bed level with diameter equals to three times the diameter of pier. To achieve the results, experiments were performed in clear-water …

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, …

Strengthening Of Mechanical Properties And Electrical Conductivity Study On 6061 Al Alloy After Ecap Process, Nour Eldeen Megahed, A.M. El-Kassas, Maher Rashad

Mansoura Engineering Journal

The investigation centered around the analysis of enhanced mechanical properties and electrical conductivity in an industrial aluminum alloy that underwent a transformation into an ultra-fine-grained (UFG) state. The aforementioned transformation was successfully accomplished by utilizing a singular iteration of the Equal Channel Angular Pressing (ECAP) method. The study involved conducting evaluations through hardness and compression tests, measuring electrical conductivity, and analyzing microstructures using OM and SEM. After annealing for three hours at a temperature of 4150C, it is experimentally explored how the electrical conductivity and material properties of AA-6061 The mechanical properties of the material are influenced by the level …

Classification Of Kidney Masses Using Convolution Neural Network, Nada M. Yakout, Eman Abdelhalim, Abdalla Abdelhalim, Hossam El-Din Moustafa

Mansoura Engineering Journal

Classification of tumors among kidney masses (KM) through deep neural networks is one of the most important applications for detecting the disease at an early stage. It can increase patient survival rates, prevent mass growth, and prevent complications. Preoperative multi-phase abdominal Contrast Enhancement Computed Tomography (CE-CT) is widely used to detect lesions of kidney masses in order to avoid unneeded biopsy or surgery. However, decisions about treatment are difficult because of inter-observer variability caused by minute variations in the imaging characteristics of mass sub-types. In this study, we offer a comprehensive deep learning model using a Convolutional Neural Networks(CNN) for …

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 …

Construing Children’S Perceptions Of Ideal Learning Spaces Based On Personal Construct Theory, Rawan Natheer Abdel Rahman

Theses

Learning is an intrinsic aspect of human experience, predominantly shaped by interactions within the socio-physical environment, including engagements with educators, peers, and the built surroundings. The design and character of these learning spaces influence children's cognitive, perceptual, and motor development while also embodying different pedagogical philosophies. Therefore, designing these spaces to align with educational shifts and enhance learning experiences requires a deep understanding of learner’s needs and perceptions. With the COVID-19 pandemic necessitating a shift to home-learning, there arose a unique opportunity to explore children’s perception of ideal learning spaces as they experienced both home and school settings. This research …

Artificial Intelligence Integration In Construction: A Cal Poly Curriculum Assessment, Carter James Hahn

Construction Management

In a rapidly evolving industry where AI enhances efficiency and safety, questions are being raised on whether it should be introduced in the classroom. This research project is with the intention of understanding if and how artificial intelligence should be incorporated into Cal Poly’s construction management curriculum. The research combines a literature review establishing AI's relevance in construction project management with a survey-based methodology to gauge industry perspectives. Today, the global construction market witnesses a surge in AI adoption in its planning, construction, and O&M phases. In turn, the industry has benefited from its application in mitigation of risks, improved …

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 …

Assessment Of Top-Down Adaptation Measures To Sea Level Rise Risk In Kafr Elsheikh Governorate, Egypt, Sara Khalil Elmorsy

Mansoura Engineering Journal

Egypt is considered one of the top five countries expected to be most impacted with a 1m SLR by the year 2100. This paper discusses top-down adaptation measures and efforts to protect Kafr Elsheikh Governorate from SLR risk, by reviewing several national environmental plans and frameworks. It reviews how the national adaptation plans are implemented on a local level and the overlaps and gaps between them. It shows many adaptation measures conducted in the area, most of them are to face beach erosion and inundation. It has been noted that there are no studies or governmental efforts to protect the …