A holistic conceptual approach to concrete service life: a split into different time-stages

Pedro Castro-Borges, Paulo Helene

Abstract


The goal of this paper is to analyze and discuss a conceptual approach that considers the holistic character of concrete service life but splits it into seven time-stages that can be compared, for understanding purposes, with those of a human being. The existing concepts about service life may be incomplete regarding those that must consider the whole life of a concrete structure. One of the reasons for this is the lack of certainty of the service life predictions which are based on models that consider a series of non-clearly defined time-stages. The life of a structure has many similarities with that of a human being. In fact, it is no coincidence that engineering has adopted some terms from the medical sciences like “pathology” to refer to structures with problems of “health”. The paper discusses the overlapping of the different time-stages as well as the reasons why the prediction models can fail.


Keywords


service life; durability; structure

References


American Concrete Institute (2000), “ACI-365: Service-Life Prediction- State-of-the-Art Report”.

Andrade, C. (1994), Quantification of durability of reinforcing steel, methods and calculation procedures of Concrete technology: New Trends, Industrial Applications, A. Aguado, R. Gettu and S.P. Shah, Editors. RILEM. Published by E&FN Spon, 2-6 Boundary Row, London SE1 8HN, UK ISBN 0 419 20150 5. pp: 158-175.

APROY-NMX-C-530-ONNCCE (2017), “Industria de la construcción – Durabilidad – Norma general de durabilidad de estructuras de concreto reforzado – Criterios y Especificaciones”.

Basheer, P. A. M. (1993), A brief review of methods for measuring the permeation properties of concrete in-situ, Structures and Buildings, Proceedings of the ICE, vol 99, 74-83. https://doi.org/10.1680/istbu.1993.22515

European Community (1989), “COUNCIL DIRECTIVE of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products.”, Off. J. Eur. Communities, vol. 40, no. L, pp. 12–26.

Helene, P. (2003), A nova NB 1/2003 (NBR 6118) e a vida útil das estruturas de concreto, University of Sao Paulo PCC USP.

Sarja, A., Vesikaeri, E. (1996), Chapter 7 Durability models, In Durability Design of Concrete Structures. Manuscript of RILEM Report of TC 130-CSL, RILEM Report Series 14. pp: 97-111, E & FN Spon, Chapman and Hall, 165 p.

Somerville, G. (1997), “Engineering design and service life: a framework for the future”, In Prediction of concrete durability: Proceedings of the STATS 21st anniversary conference /1997, J. Glanville and A. M. Neville, Editors, pp. 58-76, E & FN Spon, UK.

Troconis, O., Romero, A., Andrade, C., Helene, P., Díaz, I. (1998), Manual de inspección, evaluación y diagnóstico de corrosión en estructuras de hormigón armado, 2nd ed. Red Durar.

Tuutti, K. (1982), “Corrosion of steel in concrete”, Swedish Cement and Concrete Research Institute, Stockholm.




DOI: http://dx.doi.org/10.21041/ra.v8i3.324

Refbacks

  • There are currently no refbacks.


 

Reservation of rights for exclusive use No.04-2013-011717330300-203  e-ISSN: 2007-6835. Revista ALCONPAT, Copyright © 2011 - 2017