Learning objectives
The course deals with the technology and engineering of highway
construction and basically aims at identifying the main processes and
technological controls currently used during construction, maintenance
and rehabilitation of transportation infrastructures
Prerequisites
Construction of Roads, Railways and Airports
Course unit content
The lectures sequence ideally follows the development of a highway or
intersection design project and of an infrastructure yard in each phase,
since the earthworks to pavements construction and control. Each topic
includes numerical exercises and laboratory experiences specifically
defined in order to present methods and calculation procedures currently
used in highway engineering and constructions.
Full programme
utorial on computer-aided design of a simple stretch of road or a road
intersection.
Program
Introduction to laboratory analysis in highway engineering. Road
materials basic elements and classification; Road sections, layer
sequence, constructuve aspects and materials; Technical contracts for
road works and constructions; Technical standards systems (CNR, UNI
EN, ASTM, AASHTO); Lab instrumentations and main data acquisition
systems; Measurements reliability.
Criteria and technical systems for soil classification; Soil compaction:
Proctor and modified AASHTO tests; Bearing capacity of soils: laboratory
measurements; Embankments design; Analysis of compaction in situ;
Embankment construction and earthworks machines; In situ testing and
analyses.
Granular unbound and cement-treated materials. Technical indications;
Characteristics of constituent materials; Artificial aggregates and
recycled materials; Grading curves and distributions; Mix design criteria
and techniques for cement-treated materials; Bearing capacity and
mechanical properties; Plant mixing and laying operations; Layer control.
Asphaltic materials and pavement layers. Mineral aggregates:
classification, controls and engineering requirements; Asphalt binders (bitumens): classification and testing. Asphalt mixtures: basic elements;
Volumetric composition and specific gravity; Marshall Mix design;
Superpave Mix design; Introduction to mechanical behaviour; Indirect
tensile strength; Stiffness (creep e dynamic experiments); Fatigue
resistance; Plant operations; Laying and compaction machines.
Pavement controls. Geometrical characteristics of pavement layers;
Structural features of pavament layers; FWD systems and back-analysis
procedures; Functional (superficial) features of pavements; Skid
resistance, micro and macro-texture controls.
Bibliography
Tesoriere G. Strade, Ferrovie, Aeroporti – Volume 2. Utet.
Ferrari P., Giannini F. Ingegneria Stradale – Volume 2: Corpo Stradale e
Pavimentazioni. ISEDI.
Huang Y.H. Pavement Analysis and Design. Prentice Hall.
Federal Highway Administration (FHWA). Hot Mix Asphalt (HMA)
Technician Training Manual. (2006).
Centro Interuniversitario di Ricerca Stradale (CIRS). Norme tecniche di
tipo prestazionale per capitolati speciali d’appalto. Ministero delle
Infrastrutture e dei Trasporti (2002).
Italian and European technical regulations and material provided directly
to Students in the classroom or at the request online
Teaching methods
Lectures, numerical excercises, laboratory experiences
Assessment methods and criteria
The examination consists of a discussion dealing with laboratory
experiences and exercises carried out during the course.
Other information
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