Service life design of reinforced concrete maritime infrastructure: holistic approach with experiences from Chilean cases
DOI:
https://doi.org/10.21703/0718-281320233304Keywords:
Concrete, Durability, Service life design, Holistic approachAbstract
The consideration of the service life of reinforced concrete in the different stages of the life cycle assessment LCA of a structure, as a differentiating element, when proceeding with the performance design associated with the in-place aggressive conditions of the environment, has generated new construction challenges. In addition with the development of new regulations that include innovative engineering materials, the incorporation of performance tests and modeling processes to estimate the development of concrete deterioration over time, and construction processes that ensure adequate Quality Assurance and Quality Control QAQC. This has led to infrastructure that could even exceed their period of use, maintenance serviceability levels for more than 100 years. Such is the case, for example, of the Chacao Bridge project, currently underway, in southern Chile. In this paper, the different stages of a project are reviewed considering a holistic approach, concentrating on those aspects that should be inherent to all planning, including complementary to the design and construction process. The stage of control of the deterioration levels through diagnostics, with a defined frequency, and monitoring if relevant, to support at any moment the Structural Health Management SHM. Some cases of service life design of real cases made with own created models are presented.
References
ASTM C1556 (2016). Standard test method for determining the apparent chloride diffusion coefficient of cementitious mixtures by bulk diffusion. ASTM International, West Conshohocken, PA, USA.
BS1881 (1988). Testing concrete. Part 204 – Recommendations on the use of electromagnetic covermeters. British Standards Institutions, Milton Keynes, UK.
Di Pace, G., Ebensperger, L., Torrent, R. and Bueno, V. (2019). From cradle to maturity: a holistic service-life approach for concrete bridges. Concrete International 41(4), 47-54.
Ebensperger, L. y Olivares, M. (2019). Envejecimiento a mediano plazo de probetas: factor incidente en las estimaciones de vida útil. XV Congreso Latinoamericano de Patología de la Construcción y XVII Congreso de Control de Calidad en la Construcción, CONPAT 2019, Chiapas, México.
Ebensperger, L. y Olivares, M. (2017). Especificación y control de durabilidad del hormigón in situ con ensayos no-destructivos: metodología integral de estimación de vida útil con mediciones de permeabilidad al aire y espesor de recubrimiento. Presentación en el Segundo Congreso Internacional de Puentes, Dirección de Vialidad, Santiago, Chile.
EN (2004). Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings. European Standard EN 1992-1-1, Brussels, Belgium.
fib (2010). Model code 2010 – Final draft, v.1. Féderation Internationale du Béton, Lausanne, Switzerland.
fib (2006). Modelo duracrete. fib Bulletin 34. Féderation Internationale du Béton, Lausanne, Switzerland.
Gjørv, O.E. (2013). Durability design of concrete structures in severe environments. CRC Press, USA.
ISO16311 (2014). Maintenance and repair of concrete structures – Part 1: General principles. Geneva, Switzerland.
Li, Q., Li, K., Zhou, X., Zhang, Q. and Fan, Z. (2015). Modelbased durability design of concrete structures in Hong KongZhuhai-Macau sea link project. Structural Safety 53, 1-12.
Life-365 (2012). Service life prediction modelTM and computer program for predicting the service life and life-cycle cost of reinforced concrete exposed to chlorides. Life-365 Consortium II.
NCh170 (2016). Hormigón – requisitos generales. Instituto Nacional de Normalización INN, Santiago, Chile.
NTBuild492 (1999). Concrete, mortar and cement-based repair materials: chloride migration coefficient from non-steady-state migration experiments. Nordtest, Espoo, Finland.
Oberreuter, R. (2022). Infraestructura costera y portuaria en Chile: desafíos para su desarrollo. Hormigón al Día 78, 30-33.
PIANC (2016). Recommendations for increased durability and service life of new marine concrete infrastructure. Report N°162, Brussels, Belgium.
Repetto, F., Boré, G., Eliceiry, M., Sabaini, S. and Covarrubias, M. (2019). An innovative approach for corrosion control to enable asset management of steel elements in coastal infrastructure. Obras y Proyectos 26, 37-42.
SIA 262/1 (2013). Betonbau – Ergänzende Festlegungen (Concrete structures – supplementary specifications). Swiss Society of Engineers and Architects SIA, Zurich, Switzerland.
Torrent, R. and Frenzer, G. (1995). Study on methods to measure and evaluate the characteristics of the cover concrete on site - Part II. Report N° 516, Swiss Federal Highways Office, Bern, Switzerland.
Torrent, R. and Ebensperger, L. (1993). Study on methods to measure and evaluate the characteristics of the cover concrete on site. Report N° 506, Swiss Federal Highways Office, Bern, Switzerland.
Torrent, R.J., Neves, R.D. and Imamoto, K. (2022). Concrete permeability and durability performance: from theory to field applications. CRC Press, USA.
Tuutti, K. (1982). Corrosion of steel in concrete. Research Report 4.82, Swedish Cement and Concrete Research Institute CBI, Stockholm, Sweden.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
