Browsing Civil and Environmental Engineering by Title
Now showing items 134-153 of 881
-
Comparison of Condition Evaluation Methods for Flexible Pavement, and Exploration of Ride Quality Assessment through Vibration Frequency Analysis
(University of Waterloo, 2023-12-12)This thesis reviews and compares evaluation standards, distress manifestation manuals, and key performance indices for flexible road asset management across North America. Evaluation of pavement structural and functional ... -
Comparison of Conventional and Advanced Pavement Design Methods with Ontario Case Studies
(University of Waterloo, 2020-12-14)Many methods have been used to effectively design a pavement structure that carries the required traffic loads. In Canada, American Association of State Highway and Transportation Officials 93 (AASHTO 93), Shell Pavement ... -
Comparison of Ontario Pavement Designs Using the AASHTO 1993 Empirical Method and the Mechanistic-Empirical Pavement Design Guide Method
(University of Waterloo, 2013-11-27)The AASHTO 1993 Guide for Design of Pavement Structures is the most widely used pavement design method in both Canada and the United States, and is currently used by the Ministry of Transportation of Ontario (MTO) for both ... -
Comparison of the Impacts of Thermal Pretreatment on Waste Activated Sludge using Aerobic and Anaerobic Digestion
(University of Waterloo, 2017-08-31)Thermal pretreatment systems are typically employed to improve waste-activated sludge (WAS) dewaterability and to treat sludge prior to anaerobic digestion. It is important to understand how WAS properties are affected ... -
Comprehensive CP Optimization for Dynamic Scheduling in Construction
(University of Waterloo, 2018-05-11)Delays and cost overruns are common facts in construction projects due to its increasing complexity, the day-to-day dynamic changes, the stricter execution constraints, and the general lack of efficient scheduling tools ... -
A Comprehensive Evaluation of Hot Mix Asphalt versus Chemically Modified Warm Mix Asphalt
(University of Waterloo, 2011-09-27)Warm mix asphalt (WMA) technology has now been successfully used in Ontario for a few years. This shift in usage relates to extensions in construction season, reduced emissions, larger compaction windows, and potential ... -
Comprehensive Repetitive Scheduling for Linear and Scattered Infrastructure Projects
(University of Waterloo, 2022-05-16)The majority of civil infrastructure projects involve activities that are repeated across a number of units (e.g., linear highway sections; or scattered multi-bridge repairs). While repetition represents a potential for ... -
Comprehensive Simulation Assessment of Nitrate Mass Loading to Groundwater from Agricultural Landscapes
(University of Waterloo, 2013-09-03)The goal of this research was to evaluate the ability of two agricultural system models, the Root Zone Water Quality Model (RZWQM) and the Coupled Model (CoupModel), to simulate temporal nitrate mass loading below the root ... -
Compressed Air Energy Storage in Salt Caverns: Geomechanical Design Workflow, CAES Siting Study from a Geomechanics Perspective, and Deep Brine Disposal
(University of Waterloo, 2018-01-22)As agreed in the Paris Agreement, Canada is committed to combat climate change through reducing greenhouse gas (GHG) emissions and keeping the temperature rise well below 2° C above pre-industrial levels. One of the ways ... -
Computational Systems Mechanobiology of Tumor-Induced Angiogenesis
(University of Waterloo, 2019-05-21)Tumour-induced angiogenesis is affected by an interplay between different cell types, the mechanical stresses in the extracellular matrix (ECM), and the cell signalling networks. The morphology of the newly-created cells ... -
Computationally Efficient Extended and Stabilized Finite Element Methods for Multiphase Carbon Sequestration Modelling
(University of Waterloo, 2016-09-01)Carbon sequestration in deep saline aquifers has been proposed for long term storage of CO2 as an alternative to the release of CO2 into the atmosphere. In this thesis a computationally efficient numerical model that ... -
Conceptual Model Uncertainty in the Management of the Chi River Basin, Thailand
(University of Waterloo, 2012-05-04)With increasing demand and pressures on groundwater resources, accurate and reliable groundwater prediction models are essential for sustainable groundwater management. Groundwater models are merely approximations of ... -
Condition Assessment of Cemented Materials Using Ultrasonic Surface Waves
(University of Waterloo, 2013-08-09)Mechanical waves provide information about the stiffness and the condition of a medium; thus, changes in medium conditions can be inferred from changes in wave velocity and attenuation. Non-destructive testing (NDT) methods ... -
Condition Assessment of Concrete Elements through Two Nondestructive Ultrasonic Techniques
(University of Waterloo, 2017-07-13)Reinforced concrete is one of the materials most used in civil infrastructure, and the expected service life is generally for several decades. However, as any other material, concrete performance is affected by environmental ... -
Condition Assessment of In-Service Pendulum Tuned Mass Dampers
(University of Waterloo, 2012-09-28)Tuned mass dampers (TMDs) are auxiliary damping devices installed within tall structures to reduce undesirable wind-induced vibrations and to enhance the overall system damping and hence, the dissipative capacity. The ... -
Confirming the need for virus disinfection in municipal subsurface drinking water supplies
(Elsevier, 2019-06)Enteric viruses pose the greatest acute human health risks associated with subsurface drinking water supplies, yet quantitative risk assessment tools have rarely been used to develop health-based targets for virus treatment ... -
Construction Delay Analysis under Multiple Baseline Updates
(University of Waterloo, 2007-02-26)Due to the inherent risks and increasing complexity of modern construction projects, delays and cost overruns have become common facts in the industry. Researchers and practitioners have used many techniques to assess ... -
Construction of Horizontal Wells in Municipal Solid Waste using a Directional Drill
(University of Waterloo, 2007-09-21)Horizontal directional drilling (HDD) has been employed in many situations including cable lines under rivers and rehabilitation of pipelines under buildings and busy traffic. Within the context of a municipal landfill ... -
Construction Scene Point Cloud Acquisition, Object Finding and Clutter Removal in Real Time
(University of Waterloo, 2017-08-15)Within industrial construction, piping can constitute up to 50% of the cost of a typical project. It has been shown that across the activities involved in pipe fabrication, pipe fitting has the highest impact on the critical ... -
Construction Scheduling using Critical Path Analysis with Separate Time Segments
(University of Waterloo, 2010-08-06)Project managers today rely on scheduling tools based on the Critical Path Method (CPM) to determine the overall project duration and the activities’ float times. Such data provide important information about the degree ...