Preliminary assessment of durability of sustainable RC structures with mixed-in seawater and stainless steel reinforcement

Federica Lollini, Maddalena Carsana, Matteo Gastaldi, Elena Redaelli, Luca Bertolini, Antonio Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

The massive use of natural resources such as fresh water or virgin rock for aggregates in the construction industry originates the need for possible alternative solutions aimed at the environmental sustainability, as, for instance, the use of chloride-contaminated raw materials for the production of concrete. In the framework of a research project financed by the Infravation Program (Advanced systems, materials and techniques for next generation infrastructure), an experimental study is undertaken aiming at demonstrating the safe utilization of seawater and salt-contaminated aggregates (natural or recycled) for a sustainable concrete production when combined with noncorrosive reinforcement to construct durable and economical concrete infrastructures. Considering the lack of sufficient fresh water in many regions of the world, this paper focuses on a preliminary evaluation of the possibility of replacing fresh water used to mix/cure concrete with seawater, combined with different types of stainless steel reinforcement. Based on literature data and the performance-based approach of "Model Code for Service Life Design" published by the International Federation for Structural Concrete (fib), risks associated with the use of using seawater in relation to the service life a reinforced concrete element in a marine environment are investigated. During the development of the project, laboratory and field tests will allow for the collection of experimental data to better define the durability evaluation and analyse advantages of the proposed approach in terms of life cycle assessment.

Original languageEnglish (US)
Title of host publicationConcrete under Severe Conditions - Environment and Loading
PublisherTrans Tech Publications Ltd
Pages52-59
Number of pages8
Volume711
ISBN (Print)9783035710441
DOIs
StatePublished - 2016
Event8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016 - Lecco, Italy
Duration: Sep 12 2016Sep 14 2016

Publication series

NameKey Engineering Materials
Volume711
ISSN (Print)10139826

Other

Other8th International Conference on Concrete under Severe Conditions - Environment and Loading, CONSEC 2016
CountryItaly
CityLecco
Period9/12/169/14/16

Keywords

  • Performance-based approach
  • Reinforced concrete
  • Seawater
  • Stainless steel bars
  • Sustainability

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Lollini, F., Carsana, M., Gastaldi, M., Redaelli, E., Bertolini, L., & Nanni, A. (2016). Preliminary assessment of durability of sustainable RC structures with mixed-in seawater and stainless steel reinforcement. In Concrete under Severe Conditions - Environment and Loading (Vol. 711, pp. 52-59). (Key Engineering Materials; Vol. 711). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.711.52