Browsing Civil and Environmental Engineering by Title
Now showing items 270-289 of 881
-
The effects of curing- and service- conditions on durability of reinforced concrete structures
(University of Waterloo, 2020-06-01)Reinforced structural concrete is a critical building block of our civil infrastructure, especially our roads and bridges. As the transportation network grows, and our current infrastructure continues to age, the social ... -
Effects of GFRP Reinforcement on the Compressive Behaviour of Square SPF Timber Columns
(University of Waterloo, 2021-09-22)Wood structural elements are gaining popularity of use through greater availability of engineered wood products and a more sustainability focused construction industry. Stringent modern codes and extreme load cases (e.g., ... -
The Effects of Nuclear Radiation on Aging Reinforced Concrete Structures in Nuclear Power Plants
(University of Waterloo, 2010-08-31)In this thesis we look at one of the aging mechanisms that may have affected current aged Nuclear Power Plants (NPPs). Irradiation as an age-related degradation mechanism is studied for Reinforced Concrete (RC) in NPPs. ... -
Effects of Prolonged Shutdown on the Performance and Microbial Activity of Intermittently Operated Biofilters for Manganese Removal from Groundwater: Pilot Scale Study
(University of Waterloo, 2024-04-18)Apart from aesthetic concerns, manganese (Mn) in drinking water has been associated with cognitive and neurobehavioral effects in children. Recently Health Canada has changed its drinking water guidelines for Mn from an ... -
The effects of soil heterogeneity on the performance of horizontal ground loop heat exchangers
(University of Waterloo, 2013-01-25)Horizontal ground loop heat exchangers (GLHE) are widely used in many countries around the world as a heat source/sink for building conditioning systems. In Canada, these systems are most common in residential buildings ... -
Effects of transient borehole deformation on rock stress and rock properties analysis
(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 ... -
The effects of vegetation on the estimation of low flows: a high-resolution study in natural streams featuring novel techniques
(University of Waterloo, 2018-07-12)Accurate measurement of stream discharge under low-flow conditions is of utmost importance to many water resources practitioners. In most of the world, discharge is estimated at gauging stations using rating curves. These ... -
Efficient Computational Methods for Structural Reliability and Global Sensitivity Analyses
(University of Waterloo, 2013-05-02)Uncertainty analysis of a system response is an important part of engineering probabilistic analysis. Uncertainty analysis includes: (a) to evaluate moments of the response; (b) to evaluate reliability analysis of the ... -
Efficient treatment of climate data uncertainty in ensemble Kalman filter (EnKF) based on an existing historical climate ensemble dataset
(Elsevier, 2019-01)Successful data assimilation depends on the accurate estimation of forcing data uncertainty. Forcing data uncertainty is typically estimated based on statistical error models. In practice, the hyper-parameters of statistical ... -
Electrogeneration of hydrogen peroxide for applications in water/wastewater treatment
(University of Waterloo, 2017-08-29)Hydrogen peroxide (H2O2) is an effective, environmentally friendly oxidant used directly and in advanced oxidation processes for water and wastewater treatment. Although most H2O2 is currently manufactured offsite, ... -
An Empirical Study of Bicyclists' Turning Behaviour at Signalized Intersections
(University of Waterloo, 2018-08-23)Efforts to increase cycling mode share have seen some success in North America, though challenges persist due to real and perceived safety issues. Of particular concern are left turns at signalized intersections. Left turns ... -
Enabling Human-Machine Collaborative Inspections through Smart Infrastructure Metaverse
(University of Waterloo, 2024-02-08)Over the last ten years, novel Artificial Intelligence (AI) based structure assessment methods and tools have been proposed to identify and quantify structural damage indicators (e.g., cracking, spalling, corrosion, etc.) ... -
Engineered Fibre-reinforced Concrete Systems for Bridge Deck Link Slab Applications
(University of Waterloo, 2014-01-24)Rehabilitation and maintenance of the aging transportation infrastructure are of major concern in the Province of Ontario. A large portion of this work is related to the durability of highway bridges around the province. ... -
Engineering and Environmental Assessment of Foam Glass Lightweight Aggregate for Pavement Application
(University of Waterloo, 2019-04-02)Foam-Glass Lightweight Aggregate (FG-LWA) is an innovative lightweight material based 95% on waste and recycled glass. Several European countries use this type of material in the pavement structure and mainly as lightweight ... -
An Enhanced Mechanistic Analysis Framework for Designing Resilient Airfield Pavements
(University of Waterloo, 2023-01-05)Changes in climatic conditions can directly impact pavement performance. With alarming temperature records and the increased frequency of extreme weather events, Canadian infrastructure could be at risk if adaptation ... -
Enhanced Traffic Signal Operation using Connected Vehicle Data
(University of Waterloo, 2017-08-29)As traffic on urban road network increases, congestion and delays are becoming more severe. At grade intersections form capacity bottlenecks in urban road networks because at these locations, capacity must be shared by ... -
Enhanced Transit Ridership Forecasting Using Automatic Passenger Counting Data
(University of Waterloo, 2017-04-07)Recent emphasis on sustainable development has carried over into the transportation sector, given the impacts of transportation behavior on environment and equity. Transit is widely recognized as a viable option supporting ... -
Enhancement of Modeling Phased Anaerobic Digestion Systems through Investigation of Their Microbial Ecology and Biological Activity
(University of Waterloo, 2012-01-25)Anaerobic digestion (AD) is widely used in wastewater treatment plants for stabilisation of primary and waste activated sludges. Increasingly energy prices as well as stringent environmental and public health regulations ... -
Enhancing Real-Time Data Acquisition from Embedded Road Structural Health Monitoring Systems
(University of Waterloo, 2024-04-23)Canada's economy heavily relies on its roadways, yet managing pavement assets faces challenges due to past infrastructure spending cuts. Addressing this, a pavement management system (PMS) is essential for efficient resource ... -
Enriched mixed finite element models for dynamic analysis of continuous and fractured porous media
(Elsevier, 2019-01-01)Enriched Finite Element Models are presented to more accurately investigate the transient and wave propagation responses of continuous and fractured porous media based on mixture theory. Firstly, the Generalized Finite ...