Installation of Post-Tensioning Tendons One of the major advancements in bridge construction in the United States in the second half of the twentieth century was the development and use of prestressed concrete. Prestressed concrete bridges offer a broad range of engineering solutions and a variety of aesthetic opportunities. This course includes state-of-the-art information relative to…
Admixtures for Concrete Admixtures are ingredients other than water, aggregate and Portland cement that are added to a concrete mixture immediately prior to or during mixing. These ingredients can be used to modify the properties of concrete by affecting its workability and set time, compensating for the effects of temperature during curing, ensuring the quality…
Geometric Design of Roundabouts This course presents a summary of the geometric design process for modern roundabouts. Roundabouts are a common form of intersection control used throughout the world and increasingly in the United States. The information supplied in this course and is based on established and emerging U.S. practices and recent research. Selection and…
Design and Construction of Concrete Overlay State Highway Departments and local street and road agencies are currently faced with aging highway systems and a need to extend the life of some of the pavements. Existing design procedures for Portland cement concrete overlays deal primarily with an existing asphaltic concrete pavement with an underlying granular base…
Design of Flexible Pavements This course presents the design of flexible pavements by means of mechanistic empirical methods that are based on the analysis of stresses and strains in the pavement structure due to traffic loads or environmental effects using multi layer theory. It presents the inputs needed to calculate stresses and strains and how…
Sustainable Concrete Pavements This course includes best practices related to concrete pavement design, materials, construction, use/operations, renewal, and recycling. It presents issues specific to pavement sustainability in the urban environment and to the evaluation of pavement sustainability. It presents sustainable design concepts including context-sensitive design, design attributes that directly enhance sustainability, and alternative and emerging…