2008-2011: SELICON – Service life design – modeling the durability performance of concrete

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PTDC/ECM/69565/2006 (2008-2011)

Coordinator
: Rui Miguel Ferreira (CEC-UM)

Team: Rui Miguel Ferreira (CEC-UM), Aires Camões (CEC-UM), Said Jalali (CEC-UM), Elsa Pereira (LNEC), António Bettencourt (LNEC), Arlindo Gonçalves (LNEC) e João Castro Gomes (C-MADE).
Consultancy: Joost Gulikers (Ministry of Transport – Netherlands); Maria del Carmen Andrade (Instituto de Ciencias de la Construcción Eduardo Torroja – Espanha); Tang Luping (Chamlers Technical University –Sweden).

Summary:

The main purpose of the project was to propose models for the service life design and assessment of reinforced concrete structures based on the durability performance of the concrete.

As such, it is expected that in the future, the design of concrete structure would no longer be based on the prescriptive approach to service life design (i.e., such as the use of parameters like maximum water/binder ratio and minimum cement contents, etc.) using alternatively a durability performance model to define the concrete material performance in the form of concrete durability indicators (i.e. chloride diffusion coefficients, resistance to carbonation, water/air permeability, electrical resistivity, etc.), for the commonly occurring environmental exposure conditions in Portugal.

With the obligatory drive towards sustainability of the construction industry in general, the research developed also focused on the analysis of the durability performance of new/alternative concretes. These included different additions, fibres, new or recycled materials.

The FCT Project SELICON, financed by FCT, was undertaken by researchers from the C-TAC – Territory, Environment and Construction Research Centre (University of Minho), LNEC – Laboratório Nacional de Engenharia Civil (National Laboratory for Civil Engineering), and C-MADE – Centre of Materials and Building Technologies (University of Beira Interior). Support was also received from EP – Estradas de Portugal (Portuguese road authorities) and APDL –  Associacão dos Portos do Douro e Leixões (Port authorities for Douro and Leixões). In addition, the projected benefited from the contribution of external consultants.

The main objectives of the research project were:

1) Study of the initiation and propagation phase models of carbonation and chloride induced reinforcement corrosion, with comprehensive analysis of current and relevant models keeping in mind the characteristics of the Portuguese environment, the workmanship, and the type of materials commonly used.

2) Comprehensive assessment of the durability performance of selected infrastructures due to the need for realistic and relevant data, and for a realistic overview of the current state of our infrastructure.

3) Analysis of test procedures/requirements for determining durability indicators.

4) Development of software to assist engineers in design and assessment of concrete durability.

5) Study durability performance tests and impact on durability indicators.

6) Develop guidelines for assessment testing and analysis of durability indicators.

betonagem silo

List of publications:

1. Books

Ferreira, R.M., Gulikers, J., Andrade, C., (Ed.), Modelling the durability of reinforced concrete. Proc. Int. RILEM PhD Student Wksp. University of Minho. Guimarães. 2009. 108 p. ISBN: 978-2-35158-095-0.1   Complete List of Publications

2. Articles in scientific journals

Ferreira, R.M., “Optimization of RC structure performance in marine environment.” Engineering Structures, Vol. 32, Issue 5, May 2010, 1489-1494. (doi:10.1016/j.engstruct.2010.02.011).

Ferreira, R.M., “Implications on RC structures performance of model parameters sensitivity: Effect of chlorides.” Journal of Civil Engineering and Management. 16(4) 2010, 561-566. (doi:10.3846/jcem.2010.62)

Ferreira, R.M. Jalali, S., NDT measurements for the prediction of 28-day compressive strength. Non-Destructive Testing and Engineering. Vol. 43. 2. 03.2010. 55-61.

Ferreira, R.M. Improving durability performance of reinforced concrete structures with probabilistic analysis. International Journal of Concrete Structures & Materials, Vol.2. 2. 12.2008. 137-144.

Pereira de Oliveira L. A, Nepomuceno M, Rangel M, An eco-friendly self-compacting concrete with recycled coarse aggregates, Revista Informes de la Construcción (IF 0.59). 2011.

Camões, A.; Reis, R., ECO-EFFICIENT TERNARY MIXTURES FOR ENHANCED HIGH VOLUME FLY ASH CONCRETE, Construction and Building Materials, Elsevier, submitted January 14, 2011.

3. Trade Journals

Ferreira, R.M., Modelos para a previsão da durabilidade do betão armado. Construção Magazine. n.31, 2009, 12-15.

Ferreira, R.M., Quality control of concrete with electrical resistivity measurements. Concrete Plant Int. – CPI. 05. 2010. 82–87.

Pereira de Oliveira L. A., Castro Gomes J. P., Santos P. M. S. Comportamento Mecânico e Durabilidade de Betões com Areia de Resíduos de Vidro, Construção Magazine, Nº 39, Setembro/Outubro, Portugal, pp 33-38. 2010

4. Conference Papers

Ferreira, R.M., Castro-Gomes, J.P., Costa, P.M., Malheiro, R., Influence of metakaolin on the chloride penetration performance of concrete. ICDC 2012. Proc. Int. Conf. Durability of Concrete. Trondheim. 18-21.06.2012. (paper accepted)

Ferreira, R.M., Vesikari, E., Critical analysis of normative approaches to Service Life Design: fib MC-SLD, by50 and LNEC E465. IABMAS’12. . Proc. 5th Int. Conf. Bridge Maintenance, Safety & Management. Lake Como. 8-12.07.2012. (paper accepted)

Silva, P., Ferreira, R.M., Figueiras, H., Electrical resistivity as a means of quality control of concrete – Influence of test procedure. Betão Estrutural 2012, Porto, 10 a 12 de Novembro de 2010 (in CD-Rom).

Silva, P., Ferreira, R.M., Figueiras, H., Electrical resistivity as a means of quality control of concrete – Influence of test procedure. Betão Estrutural 2012, Porto, 10 a 12 de Novembro de 2010 (in CD-Rom).

Reis, R.; Camões, A., Eco-Efficient Ternary Mixtures Incorporating Fly Ash and Metakaolin, International Conference on Sustainability of Constructions – Towards a Better Built Environment, Innsbruck, Austria, 3 5 February 2011, pp. 71 78, http://hdl.handle.net/1822/15090

Ferreira, R.M., Costa, P.M., The effect of metakaolin on chloride penetration into concrete. XX NCR. Proc. Nordic Concrete Research Sym. Hämeenlinna. 30.05 – 1.06.2011. 137-138. (in CD-ROM).

Castro-Gomes, J.P., Wang, D., Oliveira, L., Ferreira, R.M., Study of preconditioning procedures for absorption and permeability of concrete. 12th DBMC. Proc. Int. Conf. Durability of Building Materials and Components. Porto. 12-15.04.2011. (in CD-ROM).

Silva, P., Ferreira, R.M., Figueiras, H., Electrical resistivity as a means of quality control of concrete – Influence of test procedure. 12th DBMC. Proc. Int. Conf. Durability of Building Materials and Components. Porto. 12-15.04.2011. (in CD-ROM).

R. Reis; Camões, A., Misturas Ternárias Eco-eficientes com Incorporação de Cinzas Volantes e Metacaulino, Betão Estrutural 2010, Lisboa, 10 a 12 de Novembro de 2010 (in CD-Rom).

Silva, M.T., Ferreria, R.M., Gulikers, J., Application of Einstein’s diffusion equation to the rapid migration test. 3rd International RILEM PhD Student Workshop. University of Minho. October 2009. 99-108.

Castro-Gomes, J.P., Ferreira, R.M., Durabilidade dos materiais. Desempenho e projecto prescritivo, Revista Materiais de Construção, nº 145, Setembro/Outubro, 2009. 42-48.

Silva, M.T., Ferreira, R.M., Avaliação de modelos de degradação de estruturas de betão armado em ambiente marítimo. BE2008 – Encontro Nacional Betão Estrutural 2008. Universidade do Minho, Guimarães, 5-7 Novembro 2008. p.321 (CD-ROM)

Silva, M.T., Ferreira, R.M., Avaliação de modelos de degradação de estruturas de betão armado em ambiente marítimo.. BE2008. Encontro Nacional Betão Estrutural 2008. Guimarães. 5-7.11.2008. 321-322. (CD-ROM)

Ferreira, R.M., Gulikers, J., Considerações sobre a avaliação do estado limite (de utilização) de durabilidade. BE2008. Encontro Nacional Betão Estrutural 2008. Guimarães. 5-7.11.2008. 313-314. (CD-ROM)

Ferreira, R.M., Gonçalves, A., Monteiro, A., Análise crítica do projecto de vida útil. Abordagem probabilística vs. abordagem semi-probabilística. BE2008. Encontro Nacional Betão Estrutural 2008. Guimarães. 5-7.11.2008. 319-320. (in CD-ROM)

Silva, M.T, Ferreira, R.M., Gulikers, J. Evolution of the diffusion coefficient with time: the age factor. International PhD Workshop on Durability of Concrete. 19-22 October 2008, Technical University of Zagreb, Croatia.

Ferreira, R.M.; Gulikers, J.; Critical considerations on the assessment of the durability (serviceability) limit state of reinforced concrete structures. Proceedings of 11th DBMC International Conference on Durability of Building Materials and Components, Istanbul, 11-14 May (2008). 1577-1584.

5. Reports

Relatório de Progresso – Componente Científica do Projecto Nº PTDC/ECM/69565/2006– 1º Ano, 2008.

Relatório de Progresso – Componente Científica do Projecto Nº PTDC/ECM/69565/2006– 2º Ano, 2009.

Relatório de Progresso – Componente Científica do Projecto Nº PTDC/ECM/69565/2006– 3º Ano, 2010.

Relatório de Progresso – Componente Científica do Projecto Nº PTDC/ECM/69565/2006– 4º Ano, 2011.

Relatório Final – Componente Científica do Projecto Nº PTDC/ECM/69565/2006, 2012.

Meireles, R.L., et al. “Modelos para os mecanismo de degradação assoicados à corrosão das armaduras.” Relatório de trabalho WP1.1 Projecto FCT Selicon (PTDC/ECM/69565/2006). 75p. Maio 2010.

6. Theses

Silva, P.C. Resistividade eléctrica no controlo de qualidade do betão. Dissertação de Mestrado em Construção e Reabilitação Sustentável da Universidade do Minho. 2011. 158p.

Martins, R. Avaliação de Modelos de Carbonatação: Estudo da Sensibilidade dos Parâmetros. Dissertação de Mestrado Integrado em Engenharia Civil da Universidade do Minho 2010. 113p.

Vila, M. Durabilidade de betões auto-compactáveis produzidos com agregados reciclados provenientes de demolição de estruturas de betão. Dissertação de Mestrado Integrado em Engenharia Civil da Universidade da Beira Interior. 2011. 118p.

Ramos, M. M. Contribuição para a formulação do betão auto-compactável reforçado com fibras de aço, Dissertação de Mestrado Integrado em Engenharia Civil da Universidade da Beira Interior. 2010. 116p

Costeira, A. Durabilidade de betão reforçado com fibras de aço. Dissertação de Mestrado Integrado em Engenharia Civil da Universidade do Minho. 20XX. 129p.

Costa, P.M. Betão com metacaulino – Caracterização do comportamento perante a penetração de cloretos. Dissertação de Mestrado em Construção e Reabilitação Sustentável da Universidade do Minho. 2010. 135p.

Reis, R. Betões Eco-eficientes com cinzas volantes e metacaulino. Dissertação de Mestrado em Engenharia Civil da Universidade do Minho. 2009. 161p.

7. Patents

Castro-Gomes, J.P., Wang, D., Pereira de Oliveira, L. and Ferreira, R.M., (2011), Study of Preconditioning procedures for absorption and permeability of concrete, Patente Nacional (registo provisório).

8. Others

Gulikers, J. Report – Analysis and evaluation of a European round robin test on rapid chloride migration. Rijkswaterstaat – Centre for Infrastructure. Netherlands. 2011. 100p.

9. Organization of conferences, seminars and workshops

3rd International RILEM PhD Student Workshop. Universidade do Minho. 22-23 Outubro 2009, Guimarães.

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