Browsing Civil and Environmental Engineering by Title
Now showing items 21-40 of 860
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Ammonia Removal and Recovery from Wastewater Using Natural Zeolite: An Integrated System for Regeneration by Air Stripping Followed Ion Exchange
(University of Waterloo, 2014-01-23)This study revealed that ammonium ion exchange of natural zeolite could be a feasible method of nitrogen removal and recovery from permeate from anaerobic membrane bioreactors (AnMBRs). NaCl concentrations optimized for ... -
Anaerobic Biodegradation of Petroleum Hydrocarbons in Powdered Activated Carbon Groundwater Systems: A Modelling Investigation
(University of Waterloo, 2022-09-19)Subsurface contamination by petroleum hydrocarbons (PHCs) is a widespread issue resulting from oil and gas production, distribution, and use. As a result of improved injection methods and particulate materials, injected ... -
ANALYSING ATMOSPHERIC IMPACTS OF REGIONAL TRUCK EMISSIONS USING AN INTEGRATED MODELLING APPROACH
(University of Waterloo, 2018-10-19)Transportation technology is providing new ways to mitigate multipollutant emissions co-emitted from on-road sources. Zero-emission vehicles (ZEV) are more common in passenger vehicles and other light-duty vehicles; however, ... -
Analysis and Design of Link Slabs in Jointless Bridges With Fibre-Reinforced Concrete
(University of Waterloo, 2014-08-29)Many transportation agencies in Canada and the United States have explored alternatives to expansion joints in bridges due to high maintenance costs and poor joint durability. One of the alternatives is the use of link ... -
Analysis of a Construction Small-Projects Rework Reduction Program for a Capital Facility
(University of Waterloo, 2010-01-12)Reducing field rework is widely regarded as an effective way of improving construction performance in terms of productivity, cost, schedule, quality, and safety. While existing rework reduction programs and much literature ... -
Analysis of Building Sector Construction Productivity Trends in North America between1995 and 2009
(University of Waterloo, 2011-08-04)In a 2001 study, Paul M. Goodrum examined the impact of equipment technology on productivity in the U.S construction industry between 1976 and 1998. This research and its results have been included in a larger discussion ... -
Analysis of Concrete Deep Beams with Fibre Reinforced Polymer Reinforcements using Indeterminate Strut-and-Tie Method
(University of Waterloo, 2022-08-18)Fibre-reinforced polymer (FRP) bars have gained popularity in industry to reinforce concrete. They are noncorrosive, strong in tension, but they are less stiff than traditional steel bars and fail in a brittle manner. ... -
ANALYSIS OF CONSTRUCTION EXPERIENCE OF USING LIGHTWEIGHT CELLULAR CONCRETE AS A SUBBASE MATERIAL
(University of Waterloo, 2018-09-04)Canada has the second largest territory in the world and its pavement network has over 1,000,000 km of roads spread over regions with various existing soil types. One of the challenges for engineers is to determine the ... -
Analysis of Passing Distances between Bicycles and Motorized Vehicles on Urban Arterials
(University of Waterloo, 2015-01-21)The absence of dedicated cycling infrastructure such as on-street bike lanes or physically separated bike routes forces cyclists to travel more frequently on urban arterials while sharing the road with motorized vehicles, ... -
Analysis of Passive Magnetic Inspection Signals Using the Haar Wavelet and Asymmetric Gaussian Chirplet Model (AGCM)
(University of Waterloo, 2022-04-07)Nowadays, Non-Destructive Testing (NDT) techniques are an essential foundation of infrastructure retrofit and rehabilitation plans, mainly due to the huge amount of construction, as well as the high cost of demolition and ... -
Analysis of Reliability of Fueling Machine Head Encoders
(University of Waterloo, 2022-01-10)The objective of this thesis is to investigate in-service performance and reliability of four principal encoders used to guide the motion of the fueling machine (FM), which is used to support the fueling operation in a ... -
Analysis of Risks and Cost Overruns in Design-Bid-Build Highway Infrastructure Projects in Ontario
(University of Waterloo, 2017-09-27)Cost overruns commonly occur in infrastructure projects, and when the owner is a government entity, these overruns may disrupt the funding available for other projects. Research on large projects indicates that actual ... -
The Analysis of Seasonally Varying Flow in a Crystalline Rock Watershed Using an Integrated Surface Water and Groundwater Model
(University of Waterloo, 2005)Researchers, explorers, and philosophers have dedicated many lifetimes attempting to discover, document, and quantify the vast physical processes and interactions occurring in nature. Our understanding of physical ... -
Analysis of Selected Pharmaceuticals and Endocrine Disrupting Compounds and their Removal by Granular Activated Carbon in Drinking Water Treatment
(University of Waterloo, 2007-09-25)Over the last decade, endocrine disrupting compounds (EDCs) and pharmaceutically active compounds (PhACs) have been detected in drinking water at very low levels, mostly ng/L concentrations, suggesting that these compounds ... -
Analysis of Slab-on-Grade Floors Subject to Slab-Mounted Jib Cranes
(University of Waterloo, 2022-09-19)Free-standing, foundationless jib cranes mounted directly on unreinforced slab-on-grade floors are a common necessity in industrial settings for material handling purposes. Ensuring that existing slabs can support a jib ... -
An Analysis of Stated and Revealed Preference Cycling Behaviour: A Case Study of the Regional Municipality of Waterloo
(University of Waterloo, 2012-08-29)Amongst transportation professionals there is a motivation to increase the use of active transportation to achieve contemporary transportation engineering goals. This research describes a year-long GPS cycling study ... -
Analyzing the behavior of cyclists at intersections to improve behavior variability within micro-simulation traffic models
(University of Waterloo, 2015-09-10)The purpose of this thesis can be separated into two components: Component 1: The purpose of this component was to update the input parameters for cyclists for application in mixed-traffic micro simulation models. This ... -
Analyzing the Competitiveness of Transit-Integrated Ridesourcing Systems
(University of Waterloo, 2022-12-20)Ridesourcing platforms operated by transportation network companies are becoming increasingly popular. Municipal transit agencies have rapidly launched integrated systems with ridesourcing vehicles to extend the reach of ... -
Application of a Hydrological Model for Predicting River Ice Breakup
(University of Waterloo, 2019-12-06)In cold regions, the breakup of river ice can be a significant event, resulting in flooding and damage to communities. Given the severity of such events, it is desirable to be able to predict the timing and severity of ... -
Application of Crowdsourced Travel Data in Identifying Potential Opportunities for Transportation Demand Management
(University of Waterloo, 2017-12-19)Traffic congestion is a major concern that many urban regions contend with. Since the 1970s, transport practitioners have sought out different ways to alleviate the negative impacts of congestion. The concept of Transportation ...