Browsing Civil and Environmental Engineering by Title
Now showing items 435-454 of 881
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IMPACT OF FREEZE-THAW AND DE-ICER ON THE STRUCTURAL AND FUNCTIONAL PERFORMANCE OF CANADIAN AIRPORT ASPHALT MATERIALS
(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 ... -
The Impact of Glaciation and Permafrost on Groundwater Flow
(University of Waterloo, 2016-03-21)Current geologic and climatic conditions need to be considered when choosing an appropriate site for a Deep Geologic Repository (DGR). However, given the million-year timeframe for the radioactivity of the used fuel to ... -
The Impact of NOD Reaction Kinetics on Treatment Efficiency
(University of Waterloo, 2007-05-18)In situ chemical oxidation (ISCO) with permanganate is a remedial technology that has been prevalent over the last decade. Permanganate is injected into the subsurface to oxidized reduced organic contaminants with the ... -
Impact of Operational and Design Parameters on Natural Organic Matter Removal and its Correlation with NDMA Precursor Removal or Formation during Biofiltration in Drinking Water Treatment
(University of Waterloo, 2019-05-21)NOM is a complex mixture of organic compounds that are present in all natural waters and is mainly originating from plant and aquatic organism degradation products. Therefore, the specific composition of NOM is site-specific. ... -
Impact of Pedestrian Volumes on the Operational Performance of Modern Roundabouts
(University of Waterloo, 2011-08-29)Modern roundabouts are increasingly being considered as a preferred intersection design within urban street networks in North America due, in large part, to the increased safety provided by roundabout. In the last decade, ... -
The Impact of Portland Cement on the Performance of Cold In-Place Recycled Pavement
(University of Waterloo, 2022-12-06)In place recycling of existing asphalt pavement is a rehabilitation strategy, which the Ministry of Transportation Ontario (MTO) adopted decades ago. Asphalt emulsion is the most common type of bitumen stabilizing agent ... -
Impact of Powdered Activated Carbon on Anaerobic Membrane Bioreactors Treating Municipal Wastewater under Psychrophilic Conditions
(University of Waterloo, 2019-05-06)The anaerobic membrane bioreactor (AnMBR) is an emerging technology, which has the potential for anaerobic digestion of wastewaters (WW) at high efficiency while generating biogas as a by-product (Harb et al., 2017). One ... -
Impact of Spatial Cognitive Abilities on the Effectiveness of Augmented Reality in Construction and Fabrication
(University of Waterloo, 2018-09-04)Modular construction has emerged to help address the challenges posed to the construction industry by stagnant productivity rates and a shortage of skilled labor as it allows for greater automation and for work to be ... -
Impact of Winter Road Conditions on Highway Speed and Volume
(University of Waterloo, 2014-01-29)Several past studies have attempted to quantify the impact of winter weather conditions on highway mobility in terms of traffic volume, speed, and capacity. While consistent in their general findings, these studies have ... -
Impacts of Climate Change on Canadian Airport Pavements
(University of Waterloo, 2019-12-20)Greenhouse gasses (GHG) emitted by the burning of fossil fuels and supplementary anthropogenic activities are on the rise since the industrial revolution. The world is becoming warmer and more polluted with such gases, ... -
Impacts of Hydromodification and Sediment Supply Alterations on Bedload Transport and Bed Morphology in Urbanizing Gravel-bed Rivers
(University of Waterloo, 2017-08-18)Urbanization is known to change the hydrologic and sediment supply regimes of rivers, causing more frequent, flashier flood events (hydromodification) and a reduction and redistribution of sediment sources. Presently, the ... -
Impacts of Psychrophilic Conditions on Anaerobic Membrane Bioreactors Treating Municipal Wastewater
(University of Waterloo, 2019-05-27)Three 5 L AnMBRs that incorporated submerged ZeeWeed® hollow fibre PVDF membranes with a nominal pore size of 0.04 µm and a nominal membrane surface area of 0.047 m2 were employed. The AnMBRs were operated at a solids ... -
The Impacts of Stormwater Management on Hydromodification and Bedload Sediment Transport in a Gravel-bed Stream
(University of Waterloo, 2017-09-27)Global trends of increasing urbanization have led many researchers to attempt to quantify the resulting impacts on channel morphology and on the ecological health of urban channels. Overall, there has been a lack of research ... -
Impacts of the Introduction of an Express Transit Service in Waterloo Region
(University of Waterloo, 2008-01-08)For more than a century, public transportation has played a significant role in society. Transit agencies, like other service industries, are intent on improving their quality of service so as to increase transit ridership ... -
Implications of Lateral Flow Generation on Land-Surface Scheme Fluxes
(University of Waterloo, 2002)This thesis details the development and calibration of a model created by coupling a land surface simulation model named CLASS with a hydrologic model named WATFLOOD. The resulting model, known as WatCLASS, is able to ... -
Improved Data Uncertainty Handling in Hydrologic Modeling and Forecasting Applications
(University of Waterloo, 2019-03-15)In hydrologic modeling and forecasting applications, many steps are needed. The steps that are relevant to this thesis include watershed discretization, model calibration, and data assimilation. Watershed discretization ... -
An Improved Framework for Watershed Discretization and Model Calibration: Application to the Great Lakes Basin
(University of Waterloo, 2015-01-20)Large-scale (~103–106 km2) physically-based distributed hydrological models have been used increasingly, due to advances in computational capabilities and data availability, in a variety of water and environmental resources ... -
Improved Interflow and Infiltration Algorithms for Distributed Hydrological Models
(University of Waterloo, 2010-09-28)The shallow subsurface controls the partitioning of available energy between sensible and latent heat of the land surface, and the partitioning of available water among evaporation, infiltration, and runoff. It is a key ... -
Improved Numerical Methods for Distributed Hydrological Models
(University of Waterloo, 2010-01-21)Distributed hydrological models have been used for decades to calculate and predict the movement of water and energy within watersheds. These models have evolved from relatively simple empirical applications into complex ... -
Improved Schedule Analysis Considering Rework Impact and Optimum Delay Mitigation
(University of Waterloo, 2009-12-11)Rework has been a primary cause of cost and schedule overruns in the construction of heavy industrial projects such as those related to oil and gas. It has been reported that the direct cost of rework is about 5% of total ...