72817 - Testing Laboratory M

Learning outcomes

By obtaining training credits, the student becomes familiar with the experimental techniques typical of structural engineering. He is able to critically address the choice of different types of tests in relation to the type of experimental result to be obtained. This is thanks to the fact that within the laboratory he has directly carried out experimental tests, supervised from the design to their material execution.

Course contents

Course program
Definition of building materials for structural use, definition of the concrete supply chain, roles and responsibilities of the technicians involved.
Introduction to concrete and terminology
Binders
hydrated lime: definition and applications
gypsum: definition and applications
cement
notes on production, cement chemistry, hydration
type, classes and UNI EN 197-1 regulation
Structural concrete
General framework.
The reference standards, UNI EN 206 and UNI 11104
aggregates
type of aggregates: natural, artificial, crushed
the role of aggregates in conglomerates: notes
granulometric analysis of aggregates
physical definitions and determinations: notes on humidity, absorption, ssa,
the theoretical granulometric curves (Fuller and Bolomey) and combination of aggregates
harmful substances
Recycled aggregates and industrial aggregates
additives (notes)
role and purpose of additives
fluidifiers, superfluidifiers, aerating agents, retarders
expansive agents
mineral additions
definition of hydraulic additions
fly ash
silica fume
basic blast furnace slag
concrete in the fresh state
the main characteristics
workability and definition of consistency classes with the methods of UNI EN 206:2014
definition of density in the fresh state
porosity: distinction between the porosities present in the cls
bleeding: definition and photos
type of work and relative consistency class
concrete in the hardened state
concept of characteristic resistance, average resistance, waste
physical-mechanical properties: very brief notes on tensile strength for bending and splitting
notes on shrinkage and elastic properties (only shown by the sigma/epsilon graph, only definition of creep)
notes on the various types of concrete, fibrous, RPC, RCC, etc.
concrete mix–design
mixture design (classic examples of mix design)
definition of effective water in a mixture
notes on the fluid phase and solid phase model of concretes
the Resistance/water-cement ratio curve (very good!)
development of resistances over time
durability of concrete
the causes of degradation
corrosion of reinforcement, carbonation, chemical attack, frost action
the regulations on concrete: Guidelines on laying and…., UNI EN 206, UNI 11104
elements of correct prescription, as per UNI EN 206
laying and maturation of castings, UNI EN 13670-1
some analyses of qualitative pathologies found on structures
thermal shrinkage
concept of fictitious thickness
Self-compacting concretes
Origin and development
Mix design elements
Prescription and applications
Casting and laying precautions
physical-mechanical characteristics.
Fiber-reinforced concretes
Types of structural fibers
The mix-design of fiber-reinforced concrete
The tensile strengths in the post-cracking field
applications
Innovative concretes
Photocatalytic concretes
Draining concretes
Geopolymer concretes
Cementitious conglomerates for structural use.
Mortars and grouts for repair or replacement of damaged concrete (UNI EN 1504-3)
Mortars for masonry (UNI 998-2)
Legislative framework
Construction products regulation CPR 211
Technical standards for construction, DM 2018 relating to concrete, Chapter 11
Prospects on concrete cover from EC2
Useful service life from EC2
Acceptance checks: critical issues and explanation

Assessment methods

The final oral exam will be structured to verify the level of depth achieved in the following 3 main areas of the course:


-Concrete Mix-Design


-Acceptance controls and on-site controls


-Prescription and durability of the material

Office hours

See the website of Livio Pascali