Browsing Civil and Environmental Engineering by Title
Now showing items 560-579 of 839
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Nanoparticles as X-ray CT Imaging Contrast Agents in Saturated Porous Media
(University of Waterloo, 2020-08-28)Parallels exist between medical imaging techniques, such as X-ray computed tomography (CT) or magnetic resonance imaging, and geophysical methods used to analyze the subsurface, such as ground penetrating radar, electromagnetic ... -
Nanotechnology Applied in the Design of the Next Generation of Canadian Concrete Pavement Surfaces
(University of Waterloo, 2014-11-20)High friction response in pavement improves road safety, while reduced noise production from the tire-pavement interface benefits public health and the economy of a country. According to Transport Canada, highway crashes ... -
Natural Organic Matter Characterization of Different Source and Treated Waters; Implications for Membrane Fouling Control
(University of Waterloo, 2012-10-22)The objective of drinking water treatment is to provide water which is free of pathogens, is chemically and biologically stable, and is of good aesthetic quality. Natural organic matter (NOM) is present in all natural ... -
NDT Applications for the Assessment of Asphalt Pavements, Plate Thickness, and Steel-Grout Coupling
(University of Waterloo, 2012-01-20)Nondestructive testing (NDT) uses different wave propagation modes to evaluate the internal structure of materials, revealing internal damage such as corrosion and fracturing that cannot be detected by traditional methods. ... -
New exact series solutions for transverse vibration of rotationally-restrained orthotropic plates
(Elsevier, 2019-01-01)The exact series solutions of plates with general boundary conditions have been derived by using various methods such as Fourier series expansion, improved Fourier series method, improved superposition method and finite ... -
New Methodology for the Assessment of Decayed Utility Wood Poles
(University of Waterloo, 2009-08-24)Wood is one of the oldest and most common material used in construction. Since the beginning of the electrification in Canada in late 19th-century, wood poles have been widely used to provide structural support to electric ... -
A NEW PUNCHING SHEAR STRENGTHENING TECHNIQUE FOR REINFORCED CONCRETE SLABS AT INTERIOR SLAB-COLUMN CONNECTIONS
(University of Waterloo, 2016-10-27)In certain situations the punching strength of a connection may become inadequate after construction due to changes of connection geometry from drilling or coring, or from changes of building use, or construction and ... -
Nitrogen Dynamics in a Harvested Rocky Mountain Catchment
(University of Waterloo, 2018-01-19)While the impacts of forest harvesting on nitrogen (N) are largely well documented, changes to watershed N following harvesting are difficult to characterize within steep, mountainous terrain creating uncertainty for ... -
Non-destructive Evaluation of Damage in Concrete with Applications in Shallow Foundations
(University of Waterloo, 2018-09-25)The most widely used material for civil infrastructure is reinforced concrete. The concrete deteriorates over time because of several reasons, and therefore, inspection of concrete is necessary to ensure its compliance ... -
Non-Destructive Passive Magnetic and Ultrasonic Inspection Methods for Condition Assessment of Reinforced Concrete
(University of Waterloo, 2016-06-15)Sustainability, reliability, and safety of complex industrial infrastructure are crucial worldwide issues. Long-term sustainable life quality, services and economic growth provided by modern life is dependent on the quality ... -
A non-local plasticity model of stimulated volume evolution during hydraulic fracturing
(Elsevier, 2018-10-02)Hydraulic fracturing in naturally fractured rocks often leads to the creation of a stimulated zone in which the target rock formation is deformed and fractured by the reactivation and shear dilation of natural fractures ... -
Nondestructive Evaluation of Asphalt Pavement Joints Using LWD and MASW Tests
(University of Waterloo, 2010-09-16)Longitudinal joints are one of the critical factors that cause premature pavement failure. Poor-quality joints are characterized by a low density and high permeability; which generates surface distresses such as ravelling ... -
Nondestructive Evaluation of the Depth of Cracks in Concrete Plates Using Surface Waves
(University of Waterloo, 2009-04-16)Concrete structures can often be modeled as plates, for example, bridges, tunnel walls and pipes. Near-surface damage in concrete structures mostly takes the form of cracking. Surface-breaking cracks affect concrete ... -
Nonlinear Analysis of Reinforced Concrete Frames Subjected to Abnormal Loads
(University of Waterloo, 2007-09-20)The purpose of this study is to analyze reinforced concrete frames subjected to abnormal loads. Structures are rarely subjected to abnormal loads, however, when they are subjected to them, it can lead to a progressive ... -
Nonlinear Finite Element Analysis of Punching Shear of Reinforced Concrete Slab-Column Connections
(University of Waterloo, 2016-01-08)The code provisions for the design of reinforced concrete slabs are based on empirical and mostly statistical formulations derived from the tests. The available testing database consists of different types of slabs and in ... -
Nonlinear Finite Element Analysis of Punching Shear of Reinforced Concrete Slabs Supported on Rectangular Columns
(University of Waterloo, 2018-08-22)Historical and current design code provisions for the punching shear of reinforced concrete slabs supported on rectangular columns vary greatly and are primarily based on empirical results. Additionally, the existing ... -
Nonlinear Finite Element Analysis of Reinforced Concrete Slab-Column Connections with Headed Stud/Bolt Shear Reinforcement Subjected to Punching Shear
(University of Waterloo, 2022-08-29)While many experimental tests have been conducted by various researchers on the punching behaviour of reinforced concrete flat slabs supported on columns with headed stud/bolt shear reinforcement, there are still many ... -
Nonlinear Macromechanical Analysis of Polymeric Materials
(University of Waterloo, 2017-05-19)A new methodology for predicting the short term and long term responses of viscoelastic and viscoplastic materials is developed in this research. The methodology aims to predict the behaviour of viscoelastic/viscoplastic ... -
Nonparametric Methods for Road Safety Analysis
(University of Waterloo, 2016-08-16)Crash models for predicting long-term crash risk at some specific components of a road network are fundamental to road safety analyses such as network screening and countermeasure studies. These models are often calibrated ... -
A novel selective disassembly sequence planning method for adaptive reuse of buildings
(Elsevier, 2018-05-10)Adaptive reuse of buildings can be an attractive alternative to new construction in terms of sustainability and a circular economy. Achieving net benefits with adaptive reuse partly relies on efficiently planning building ...