Browsing MS Theses - DO NOT EDIT by Issue Date
Now showing items 21-40 of 313
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Comparison Of Adsorption Capacities Of Nanoadsorbents With Conventional Activated Carbon For Volatile Organic Compounds
(Civil & Environmental Engineering, 2007-08-23)This research explores the potential for using single wall carbon nanohorns (SWNHs) for adsorption of volatile organic compounds (VOCs) categorized as hazardous air pollutants and which contribute to ground level ozone ... -
Effectiveness Of Signal Coordination As An Emission Reduction Measure For Vehicles
(Civil & Environmental Engineering, 2007-08-23)Air Pollution is a significant health and environmental concern. Vehicular emissions are major contributors to many air pollution problems. There is growing interest in reducing carbon dioxide emission because of the ... -
Effects Of Water-cement Ratio On Deep Mixing Treated Expansive Clay Characteristics
(Civil & Environmental Engineering, 2007-08-23)The structures built on the unstabilized expansive soils are subjected to distress due to swell shrink behavior due to seasonal fluctuations. Medium stiff expansive clays with moderate and high PI were collected from two ... -
Performance Studies On Rigid Pavement Sections Built On Stabilized Sulfate Soils
(Civil & Environmental Engineering, 2007-08-23)Soils of Southeast Arlington are highly expansive and rich in sulfates. They undergo sulfate induced heaving when traditional calcium based stabilizers are used for soil stabilization (Puppala et al. 1998). Traditional ... -
Water Damage Evaluation Of Concrete Infrastructure
(Civil & Environmental Engineering, 2007-08-23)This study presents an experimental program to evaluate the effect of a special waterproofing material, International Chem-Crete Pavix (CCP), on the durability of concrete. The experimental program identified the concrete ... -
Impact Of A Pre-combustion Retrofit Device On Vehicular Emissions: A Case Study
(Civil & Environmental Engineering, 2007-08-23)Vehicular emissions are a major cause of air pollution in the cities worldwide. Increased numbers of vehicles and the vehicle miles traveled by them every year means that the emissions are going to have a detrimental effect ... -
General Response Of Kneading-compacted Unsaturated Silty Sand Under Drained And Undrained True Triaxial Testing
(Civil & Environmental Engineering, 2007-08-23)A comprehensive series of 36 drained and 36 undrained true triaxial tests was accomplished to investigate the stress-strain-strength behaviour of kneading-compacted unsaturated silty sand (SP-SM) under multi-axial stress ... -
Trends Of Vehicular Emissions Due To The Effect Of Ethos® FR As Fuel Additive
(Civil & Environmental Engineering, 2007-08-23)The main objective of this research was to observe if the addition of the fuel additive Ethos Fuel Reformulator significantly reduced the emissions of CO, CO2, HC and NOX from a light duty vehicle. Data collection was ... -
Numerical Modeling And Analysis Of Pile Supported Embankments
(Civil & Environmental Engineering, 2007-08-23)Very soft clays are often avoided in construction due to their low shear strength and high compressibility. Special construction methods are adopted when embankments are constructed on very soft clay or peat. Design of ... -
Statistical Analysis Of Compressive Strength Of Clay Brick Masonry Prisms
(Civil & Environmental Engineering, 2007-08-23)The Specification for Masonry Structures section of the current governing masonry design document in the U.S., reported by the Masonry Standards Joint Committee (MSJC), contains tables that can be used to determine the ... -
Evaluation Of Resilient Modulus Of Cement And Cement-fiber Treated Reclaimed Asphalt Pavement (RAP) Aggregates
(Civil & Environmental Engineering, 2007-08-23)Natural aggregates derived from a variety of source rocks have been used as a road base material. But the extraction of natural aggregates resources is increasingly being constrained by urbanization, increased costs and ... -
The Travel Behavior Of Minority Cohorts In Texas
(Civil & Environmental Engineering, 2007-09-17)Texas is changing dramatically; the most conservative population forecast indicates that Hispanics will account for 50% of the Texas population before 2035. Not only is the number of Hispanics on the rise in Texas, but ... -
Vehicular Emissions Models Using Mobile6.2 And Field Data
(Civil & Environmental Engineering, 2007-09-17)Regression models to predict vehicular emissions for different categories of vehicles for different pollutants are presented in this thesis. Vehicular emissions are affected by numerous variables which, among others, include ... -
Effects Of A Debonding Flaw Size And Location On The Flexural Performance Of CFRP Retrofitted Steel Sections
(Civil & Environmental Engineering, 2007-10-08)In US there are several thousand steel bridges at present. Out of them many bridges are at various level of advance deteriorations due to many years of service life and environmental factors. These bridges cannot be fully ... -
Regression Model For Prioritization Of Corridors When Retiming Traffic Signals
(Civil & Environmental Engineering, 2008-04-22)Traffic signals are used by transportation engineers to safely and efficiently manage vehicle, bicycle and pedestrian traffic on roadways. However, to maintain the effectiveness of traffic signals, traffic signals should ... -
Trends Of Vehicular Emissions For Clean Air Associates Precombustion Retrofit Device
(Civil & Environmental Engineering, 2008-04-22)The research study objective was to find if there was any reduction in onboard exhaust emissions from a light duty passenger car (2007 Dodge Charger) with a Clean Air Catalytic Converter manufactured by Clean Air Associates, ... -
Experimental And Field Monitoring Studies On Recycled Materials As Pavement Bases
(Civil & Environmental Engineering, 2008-04-22)Natural aggregates derived from a variety of source rocks have been used as a road base material. But the extraction of natural aggregates resources is increasingly being constrained by urbanization, increased costs and ... -
The Effect Of Temperature On Fiber Composite Bridge Decks
(Civil & Environmental Engineering, 2008-08-08)The use of Fiber composite honeycomb structure's as bridge decks gained importance, because of its low light weight and ease of installation. In this study, The Fiber composite bridge decks were subjected to thermal ... -
Ductile Lightweight Concrete For Lightweight Structural Application
(Civil & Environmental Engineering, 2008-08-08)This study developed a ductile concrete for precast wall systems which are capable of resisting high wind in excess of 500 mph. The developed concrete mix design consists of sand, cement, glass fiber, and a foaming agent ... -
Impact Of Lateral Swell Pressure On Retaining Structure Design Using Expansive Cohesive Backfill
(Civil & Environmental Engineering, 2008-08-08)Since cohesive soils are difficult to drain once becoming saturated, in order to reduce lateral earth pressures exerted by saturated cohesive soils on retaining structures, retaining wall designs most always specify use ...