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A Refined True Triaxial Apparatus For Testing Unsaturated Soils Under Suction-controlled Stress Paths
(Civil & Environmental Engineering, 2009-09-16)
A novel, computer-driven, true triaxial (cubical) apparatus has been developed to test unsaturated soil specimens under suction-controlled multi-axial stress paths that are not achievable in a conventional cylindrical ...
Novel Stabilization Methods For Sulfate And Non-sulfate Soils
(Civil & Environmental Engineering, 2009-09-16)
Expansive soils are commonly found in arid and semi-arid climate zone. These soils typically exhibit moderate to high plasticity, low to moderate strength, and high swell and shrinkage characteristic which in turn result ...
A Comprehensive Study Of Recycled Concrete Aggregates As A Drainable Base Layer For Pavements
(Civil & Environmental Engineering, 2009-09-16)
The use of recycled materials in construction is becoming increasingly popular due to the shortage of raw materials. Coupled with the environmental concerns surrounding the quarrying of natural minerals, waste materials ...
Studies On Field Stabilization Methods To Prevent Surficial Slope Failures Of Earth Fill Dams
(Civil & Environmental Engineering, 2009-09-16)
Surficial failures are occurring frequently on the slopes of earthfill dams which are predominantly rainfall induced. Desiccation cracks form on the slope surface during dry environment which accelerates infiltration during ...
Clay Mineralogy Effects On Long-term Performance Of Chemically Treated Expansive Clays
(Civil & Environmental Engineering, 2009-09-16)
Stabilization of expansive soils using chemical additives such as cement and lime had been in use for several decades and these treatments provide riding comforts to travelers. However, many state Departments of Transportation ...
Multi-criteria Assessment For Supporting Freeway Operations And Management Systems
(Civil & Environmental Engineering, 2009-09-16)
Freeway traffic congestion represents an increasing concern for urban areas throughout the United States. In addition, faced with limited roadway expansion alternatives, transportation agencies are considering investment ...
Statistical Approach To The Development Of A Microscale Model For Estimating Exhaust Emissions Of Light Duty Gasoline Vehicles
(Civil & Environmental Engineering, 2009-09-16)
Today, air pollution is taking a growing toll on human health, the environment and the economy, despite decades of efforts to combat it. Although it was once a primary urban phenomenon in industrialized countries, today ...
Assessing Control Strategies For Ground Level Ozone
(Civil & Environmental Engineering, 2009-09-16)
Developing cost effective control strategies for ozone has been a challenge to air quality modelers. Conventionally, the control strategies are applied across-the board to the region. The main aim of this research was to ...