Questo corso intende fornire agli studenti conoscenze e competenze relative ai materiali di asfalto e progettazione di pavimentazione e manutenzione, tra cui scelta dei materiali e la caratterizzazione, mix progettazione di calcestruzzo, asfalto della pavimentazione livelli utilizzando sia empirica e meccanicistica metodi, valutazione delle prestazioni dei esistenti marciapiedi, mediante ispezione visiva, manuale sistema, attrezzature ad alta velocità e veicoli instrumentati e prove di laboratorio dei materiali. È stato progettato per autostrade-correlati ingegneri e responsabili o tutti coloro che desiderano approfondire la loro conoscenza dei materiali di asfalto, pavimentazione disegno e manutenzione.
Lezioni frontali
esercizi in classe
compiti a casa
Progettazione di una pavimentazione stradale
Nessuno
fortemente consigliata
1. ROAD PAVEMENT
Historical background. Pavement performances. Pavement Type: Flexible pavement, Rigid pavement, Special Pavement: Draining-Sound Absorbent, Composite.
2. PAVEMENT MATERIALS
Subgrade, Subbase, Drainage. Soil stabilization concept and methods. 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. Resilient modulus, Dynamic modulus of asphalt concrete. Fatigue cracking, Rutting and permanent deformation. Harmonized European Specifications.
3. PAVEMENT DESIGN
Subgrade. Weather and Environment factors. Traffic and load distribution concepts. Load Equivalency Factors. Pavement performance and analysis period. Pavements catalogs. Empirical Methods. Mechanicistic-Empirical Methods.
4. PAVEMENT MAINTENANCE
Pavement Management Systems (PMS). Pavement Survey. Nondestructive tests. Bearing capacity, Unevenness, Skid resistance and surface texture, visual evaluation of Distress. Maintenance and rehabilitation of asphalt pavement. Overlay design.
Guide for Design of Pavement Structures, 4th Edition, AASHTO, 1993.
Mechanistic-Empirical Pavement Design Guide, AASHTO, 2008.
Pavement Analysis and Design, Yang H. Huang, Prentice Hall, 2003.
Highway Engineering - Pavements, Materials and Control of Quality. A. Nikolaides. CRC 2015
Pavement Engineering, Rajib B. Mallick, Tahar El-Korchi, CRC, 2nd edition, 2013
Strade - Teoria e tecnica delle Costruzioni - Pearson 2016
Course Handouts (Dropbox link shared with registered students)
Argomenti | Riferimenti testi | |
1 | Subgrade and pavement geotechnical | course handouts |
2 | pavement materials | course handouts, Highway Engineering - Pavements, Materials and Control of Quality. A. Nikolaides. CRC 2015 |
3 | Pavement empirical design | course handouts, Guide for Design of Pavement Structures, 4th Edition, AASHTO, 1993 |
4 | Mechanistic Empirical design | course handouts, Mechanistic-Empirical Pavement Design Guide, AASHTO, 2008 |
5 | Pavement Maintenance | course handouts |
Class attendance and participation
Homeworks
Oral examination
Subgrade and bearing capacity (CBR, MR, FWD, LWD, DCP)
Types, properties of asphalt materials (aggregate, asphalt) and mix design
Empirical design (ESALs, PSI, Mr, Reliability, SN, a1, a2, a3, m2, m3)
Mechanistic Empirical Design (Axle load and frequency, environmental factor, material characterization, Multilayer elastic system, Fatigue cracking, Rutting)
Pavement monitoring and Maintanance (skid resistance, Roughness, unevenness, distress)