• Pragmatic Groundwater-Surface Water Model Coupling with Unstructured Grids 

  Scantlebury, Leland (University of Waterloo, 2021-07-29)

  Faced with an array of water issues exacerbated by a rapidly changing climate, hydrologists and hydrogeologists have increasingly found themselves needing to simultaneously model the groundwater and surface water domains ...

• Impact of Anaerobic Biofilm Formation on Sorption Characteristics of Powdered Activated Carbon 

  Rocha Diaz de Leon, Griselda Raquel (University of Waterloo, 2021-07-23)

  Subsurface contamination by petroleum hydrocarbons (PHCs) results from the leakage of petroleum products during extraction, processing or transport. It has been documented that activated carbon (AC) can effectively sorb ...

• Development of a New and Innovative Concrete Paver 

  Omidi, Mahshad (University of Waterloo, 2021-07-22)

  Interlocking Concrete pavers (ICPs) have become increasingly common in North America. These pavements consist of impermeable concrete paving units and permeable joints that allow water to freely enter the surface. The ...

• Mechanistic Framework for Risk Assessment of Cast Iron Water Main Fractures due to Moisture-Induced Soil Expansion 

  Singh, Piyius Raj (University of Waterloo, 2021-07-09)

  North American water distribution networks are at significant risk of failure due to aging cast iron pipes. For instance, of the 650,000 kilometers of cast-iron pipes in active service in the United States and Canada, ...

• Determinants of Rapid Transit Planning Processes in Ecuador 

  Arias Arellano, Juan F. (University of Waterloo, 2021-06-21)

  This research presents a novel framework for the quantitative and qualitative analysis of rapid transit planning processes based on a mixed-method approach, along with the corresponding results: the relative importance of ...

• Effects of beam axial deformations on storey-based critical gravity loads in tension-only semi-braced steel frames 

  Ma, Terence; Zhang, Linbo; Xu, Lei (Elsevier, 2021-04-01)

  If the beams in a structural frame are not connected to slabs or other rigid diaphragms, the beams will axially deform when the frame is subjected to lateral loads, reducing the critical loads and increasing local deflections ...

• Storey-based stability of multi-storey steel semi-braced and unbraced frames with semi-rigid connections 

  Ma, Terence; Xu, Lei (American Society of Civil Engineers, 2021-01)

  A simplified method is proposed for evaluating the stability of multi-storey, steel semi-braced and unbraced frames with semi-rigid connections. The proposed method decomposes a frame into individual storeys and evaluates ...

• Effects of transient borehole deformation on rock stress and rock properties analysis 

  Han, Hong Xue (University of Waterloo, 2021-06-02)

  Understanding the in-situ stresses and rock mechanical properties is necessary to ensure successful drilling, quality wellbore completion, and reservoir performance analysis. However, the conventional determination methods ...

• Modeling the Transportation of Select Trace Organic Contaminants from Source to Ecosystem in the Grand River 

  Zeeb, Elijah (University of Waterloo, 2021-06-02)

  Trace organic contaminants (TOrC) have been observed in waters downstream of wastewater treatment plants (WWTP) in the Grand River in southern Ontario, Canada. These contaminants have been correlated with adverse impacts ...

• A Rules-based Mode Choice Model using CHAID Decision Trees and Dynamic Transit Accessibility 

  Feng, Devin (University of Waterloo, 2021-05-31)

  Transportation mode choice models typically represent user decision making using utility-based mode choice models. However, utility models assume that users make compensatory trade-offs between decision variables to ...

• Future of Canadian Air Quality and Related Health Benefits from Climate Change Mitigation 

  Shim, Gene W. (University of Waterloo, 2021-05-21)

  Air pollution has been recognized as the world’s largest environmental health risk. Climate change is expected to exacerbate air pollution. Mitigating the “climate penalty” of climate change on air quality yields air ...

• Deep Reinforcement Learning Models for Real-Time Traffic Signal Optimization with Big Traffic Data 

  Muresan, Matthew (University of Waterloo, 2021-05-19)

  One of the most significant changes that the globe has faced in recent years is the changes brought about by the COVID19 pandemic. While this research was started before the pandemic began, the pandemic has exposed the ...

• Operational maps between molecular properties and environmental stress cracking resistance (ESCR) 

  Sardashti, P.; Stewart, K. M. E.; Polak, M.; Tzoganakis, C.; Penlidis, Alexander (Wiley, 2019-01-20)

  Environmental stress cracking (ESC) is one of the main failure mechanisms involved in polymer fractures. This paper focusses on the environmental stress cracking resistance (ESCR) of polyethylene (PE) in which ESC occurs ...

• Coupled chemically-assisted filtration (CCAF) approaches for increasing filter resilience and performance during drinking water treatment 

  Kundert, Kelsey (University of Waterloo, 2021-05-11)

  The paramount objective of drinking water treatment is the prevention of acute waterborne disease. Filtration remains a critical barrier for ensuring that Cryptosporidium spp. and Giardia are removed during drinking water ...

• Correlation of Tensile Strength to Flexural Rupture Modulus of GFRP Bars 

  Lochan, Philip (University of Waterloo, 2021-05-04)

  Glass fibre reinforcing polymer (GFRP) bars are becoming a more comparable alternative to steel rebar used as tensile reinforcement for concrete, due to their cost effectiveness compared to other alternatives. GFRP has ...

• Evaluation of Potential Health Risks from Microplastics in Drinking Water 

  Chowdhury, Omar (University of Waterloo, 2021-05-03)

  Microplastics have been detected, often abundantly, in freshwater environments over the past decade. While understanding of the ecological health implications of microplastics in aquatic environments has advanced considerably, ...

• IMPACT OF FREEZE-THAW AND DE-ICER ON THE STRUCTURAL AND FUNCTIONAL PERFORMANCE OF CANADIAN AIRPORT ASPHALT MATERIALS 

  Liu, Yang (University of Waterloo, 2021-05-03)

  Asphalt pavement is widely used on roadways and airside pavement across Canada. Despite various benefits including smooth driving experience, rapid construction, as well as the high recyclability of asphalt pavement, common ...

• Digital Twin Framework and Auto-Linking for Management of Legacy Assets 

  Edwards, Chloe (University of Waterloo, 2021-04-30)

  The integration of Digital Twins (DTs) for facility and asset management is becoming increasingly common with the advancement of sensor and modelling technology. A digital twin is defined as a responsive and virtual ...

• Finite Element Modelling of RC Beams Strengthened with Prestressed NSM CFRP Plate 

  Alfaidi, Hamed (University of Waterloo, 2021-04-30)

  Near Surface mounted (NSM) carbon fibre reinforced polymer (CFRP) reinforcement has become a promising flexural strengthening technique for reinforced concrete (RC) elements. The prestressing of a CFRP plate can be used ...

• Developing design option assessment methods for high-rise residential building adaptation projects 

  Shahi, Sheida (University of Waterloo, 2021-04-01)

  Adapting existing buildings is complex, but it can reduce the ratio of operating-to-embodied energy and the amount of demolition and construction waste. There has been a growing interest in the adaptation of existing ...

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