PAVEMENT ENGINEERING
Academic Year 2020/2021 - 1° Year - Curriculum Ingegneria dei trasportiCredit Value: 6
Scientific field: ICAR/04 - Highways, railways and airports
Taught classes: 28 hours
Exercise: 30 hours
Term / Semester: 2°
Learning Objectives
This course will provide students knowledge and skills relevant to asphalt materials and pavement design and maintenance, including material selection and characterization, mix design of asphalt concrete, design of pavement layers using both empirical and mechanistic methods, performance evaluation of existing pavements using visual inspection, manual system, high speed equipment and instrumented vehicles, and laboratory testing of materials.
Course Structure
Lectures, tutorials, exercises, and project work.
Detailed Course Content
Traffic, environmental conditions, soil and drainage
Weather and Environment factors. Traffic and load distribution concepts. Load Equivalency Factors. Subgrade, Subbase, Drainage. Soil stabilization concept and methods.
Material characterization and asphalt mix design
Historical background. Pavement performances. Pavement Type: Flexible pavement, Rigid pavement, Special Pavement: Draining-Sound Absorbent, Composite. Asphalt Concrete. Properties and characteristics of binders and aggregates. Laboratory material characterization. Viscoelastic nature of asphalt and direct measure of stiffness. Types, properties and design of asphalt mixes. Marshall and Superpave mix Design. Harmonized European Specifications.
Structural design
Resilient modulus, Dynamic modulus of asphalt concrete. Fatigue cracking, Rutting and permanent deformation. Pavement performance and analysis period. Pavements catalogs. Empirical Methods. Mechanicistic-Empirical Methods.
Maintenance and rehabilitation
Maintenance and rehabilitation of asphalt pavement. Pavement Management Systems (PMS). Pavement Survey. Nondestructive tests. Bearing capacity, Unevenness, Skid resistance and surface texture, visual evaluation of Distress. Overlay design.
Textbook Information
American Association of State Highway and Transportation Officials – AASHTO (1993). Guide for Design of Pavement Structures, 4th Edition.
American Association of State Highway and Transportation Officials – AASHTO (2008). Mechanistic-Empirical Pavement Design Guide.
Huang Y. H. (2003). Pavement Analysis and Design. Prentice Hall.
Mallick R. B., El-Korchi T. (2008). Pavement Engineering. Chapman and Hall/CRC.