Browsing Civil and Environmental Engineering by Title
Now showing items 621-640 of 878
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Optimizing Solvent Extraction of PCBs from Soil
(University of Waterloo, 2009-08-04)Polychlorinated biphenyls (PCBs) are carcinogenic persistent contaminants. Although their manufacturing in North America ceased in the late 1970s, their high heat resistance made their use widespread over their production ... -
Optimizing the Performance of Asphalt Mixes with High Reclaimed Asphalt Pavement Content Using Rejuvenators
(University of Waterloo, 2023-01-23)Reusing reclaimed asphalt pavement (a.k.a., RAP) has become a routine in the production of asphalt paving materials. Theoretically, RAP is a hundred percent recyclable material since its main components are high-quality, ... -
Optimum Deicing and Anti-icing for Snow and Ice Control of Parking Lots and Sidewalks
(University of Waterloo, 2015-01-06)Snow and ice cause pavement surfaces to become slippery and unsafe for both foot and vehicular traffic. To alleviate the hazards of pedestrians slipping and vehicular accidents, various forms of maintenance operations such ... -
Paleoevolution of Pore Fluids in Glaciated Geologic Settings
(University of Waterloo, 2009-06-17)Nuclear power generation is being regarded as a solution to ever increasing demand for electricity, and concerns over global warming and climate change due to the use of fossil fuels. Although nuclear power generation is ... -
Parameter Estimation and Uncertainty Analysis of Contaminant First Arrival Times at Household Drinking Water Wells
(University of Waterloo, 2007-01-25)Exposure assessment, which is an investigation of the extent of human exposure to a specific contaminant, must include estimates of the duration and frequency of exposure. For a groundwater system, the duration of exposure ... -
A Parametric Study on Soil-Structure Interaction Mechanisms through A 3D Finite Element Numerical Modelling of Palladium Drive Integral Abutment Bridge in Ontario
(University of Waterloo, 2014-01-24)The term “Integral Abutment Bridges” is used broadly all over the world these days. While the expansion joints used in bridges were once a scientifically proved cure to the problem of natural expansion and contraction, ... -
Partial Joint Penetration Welds in Aluminum Structures
(University of Waterloo, 2020-09-29)Aluminum structures are becoming more and more common in Canada and the world as engineers and decision-makers become more aware of the possibility to lower life cycle costs. Aluminum's corrosion resistance, light weight ... -
Pavement Deterioration and PE Pipe Behaviour Resulting from Open-Cut and HDD Pipeline Installation Techniques
(University of Waterloo, 2007-09-17)The damaging impact of continuous utility cuts on flexible pavement performance has been shown to be a major problem for urban roads and pavement mangers due to high reconstruction and maintenance costs. Horizontal Directional ... -
Pavement Flooding Risk Assessment and Management in the Changing Climate
(University of Waterloo, 2020-01-15)Flooding, which can cause substantial infrastructure damages resulting in adverse social, environmental, and economical consequences, is a rising concern in the changing climate. Road networks consisting of interconnected ... -
Pavement Performance Modeling of Unique Crosswalk Designs
(University of Waterloo, 2010-08-30)Interlocking Concrete Pavements also known as block pavements are one of the integral parts of the pavement system in Europe. The use of ICP slowly extended to other countries including North America. As the usage increased ... -
Pavement Performance Prediction Using Machine Learning and Instrumentation in Smart Pavement
(University of Waterloo, 2022-09-19)The optimization of pavement Maintenance and Rehabilitation (M&R) planning and costs has been historically proven as a complex task. In recent years, Artificial Intelligence (AI) and Machine Learning (ML) applications in ... -
Performance Comparison of Large Diameter Residential Drinking Water Wells
(University of Waterloo, 2010-01-20)Published scientific work indicates that residential large diameter drinking water wells are at a higher risk of contamination from surface water impacts than drilled wells. The possibility of a higher incidence of ... -
Performance Evaluation of Recycled Asphalt Shingles (RAS) in Hot Mix Asphalt (HMA): An Ontario Perspective
(University of Waterloo, 2011-04-12)Today, a large quantity of waste is generated from the replacement of residential and commercial roofs. Many of the roofs being upgraded with previously constructed from asphalt shingles. Recycled Asphalt Shingles (RAS) ... -
Performance Modeling and Simulation for Water Distribution and Wastewater Collection Networks
(University of Waterloo, 2016-12-14)Over the past decade many performance indicators have been developed for water and wastewater utilities. While existing performance indicators allow utilities to track performance over time and with respect to utility set ... -
Performance of Biological Filters for Drinking Water Treatment and Their Use for High Pressure Membrane Biofouling Control
(University of Waterloo, 2016-01-18)Biofiltration is a promising green drinking water treatment technology that can reduce the concentration of biodegradable organic matter (BOM) in water. Direct biofiltration or biofiltration without pretreatment (BFwp) ... -
Performance of Large Diameter Residential Drinking Water Wells - Biofilm Growth: Laboratory and Field Testing
(University of Waterloo, 2011-11-23)In the first phase of this project three enhanced large diameter (> 60 cm) residential wells were constructed at a study site in Lindsay, Ontario. Two wells were constructed using concrete tile casing while the other well ... -
Performance of Load-Bearing Cold-Formed Steel Wall Systems with Web-Perforated Studs Subjected to Standard Fire
(University of Waterloo, 2017-01-23)Load-bearing cold-formed steel (CFS) wall systems are commonly constructed with CFS C-shape studs with one or two layers of fire-rated sheathing attached to both sides. In practice, perforations are placed in stud webs to ... -
Performance of Pillars in Rock Salt Mines
(University of Waterloo, 2010-09-30)The viscoelastic and creep properties of salt create challenges in the design of salt mines. Salt undergoes steady state creep for a long period of time, and the time of failure is not easily predicted. Developing functions ... -
The Performance of Rainscreen Walls in Coastal British Columbia
(University of Waterloo, 2007-09-11)This thesis examines the widespread moisture problems which emerged over the past twenty years in buildings throughout coastal British Columbia, commonly known as ‘leaky condos’. A literature review of building physics and ... -
Performance of Soil Borehole Thermal Energy Storage System under Different Natural and Engineered Subsurface Conditions
(University of Waterloo, 2023-12-18)Borehole thermal energy storage (BTES) system, a type of underground thermal energy storage (UTES) systems, is a promising technology for sustainable space heating. BTES stores thermal energy in subsurface media (rock or ...