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Conservation of the reinforced concrete pillars of the church of the San Carlo Borromeo hospital in Milan: monitoring of damage, diagnosis of conservation state and trial of repair techniques



Title: Conservation of the reinforced concrete pillars of the church of the San Carlo Borromeo hospital in Milan: monitoring of damage, diagnosis of conservation state and trial of repair techniques
Author(s): L. Bertolini, E. Redaelli, D. Lattanzi, M. Mapelli
Paper category : conference
Book title: RILEM Symposium on On Site Assessment of Concrete, Masonry and Timber Structures - SACoMaTiS 2008
Editor(s): L. Binda, M. di Prisco, R. Felicetti
Print-ISBN: 978-2-35158-061-5
e-ISBN: 978-2-35158-075-2
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 561 - 570
Total Pages: 10
Nb references: 3
Language: English


Abstract: The reinforced concrete pillars of the Church of Santa Maria Annunciata at the San Carlo Borromeo hospital in Milan, designed by the architect Gio Ponti in the early sixties, show signs of damage due to reinforcement corrosion. They require repair in order to remedy already present damage, but also to prevent future damage. The repair should also aim at preserving the integrity of the original materials, owing to the architectural and cultural value of the Church.
The paper describes a trial work aimed at defining an appropriate procedure of restoration.
Initially the reinforced concrete pillars were inspected in order to assess their conditions by means of non-destructive techniques and analysis on concrete samples. The results of the inspection allowed to evaluate the actual conservation state of the pillars and in particular the corrosion conditions of the rebars.
Then a trial of repair techniques was performed on two pillars. Electrochemical realkalisation and application of hydrophobic treatment were considered. Their effectiveness was evaluated by comparison with non-treated areas.


Online publication: 2009-05-26
Publication type : full_text
Public price (Euros): 0.00