TY - JOUR
T1 - Effect of the marine environment on reinforced concrete durability in Iberoamerican countries
T2 - DURACON project/CYTED
AU - Trocónis de Rincón, O.
AU - Sánchez, M.
AU - Millano, V.
AU - Fernández, R.
AU - de Partidas, E. A.
AU - Andrade, C.
AU - Martínez, I.
AU - Castellote, M.
AU - Barboza, M.
AU - Irassar, F.
AU - Montenegro, J. C.
AU - Vera, R.
AU - Carvajal, A. M.
AU - de Gutiérrez, R. M.
AU - Maldonado, J.
AU - Guerrero, C.
AU - Saborio-Leiva, E.
AU - Villalobos, A. C.
AU - Tres-Calvo, G.
AU - Torres-Acosta, A.
AU - Pérez-Quiroz, J.
AU - Martínez-Madrid, M.
AU - Almeraya-Calderón, F.
AU - Castro-Borges, P.
AU - Moreno, E. I.
AU - Pérez-López, T.
AU - Salta, M.
AU - de Melo, A. P.
AU - Rodríguez, G.
AU - Pedrón, Miguel
AU - Derrégibus, M.
N1 - Funding Information:
The authors would like to thank their Institutions (permanent affiliations) for the partial support and facilities for this project; the CYTED Program for promoting and financing the interchange of ideas and knowledge within the Ibero-American researchers and their institutions/universities: Argentina (UNCPBA), Brazil (Inst. Tec. Aeronáutica, University of Sao Paulo), Bolivia (IIMETMAT-UMSA), Chile (PUCV, PUC), Colombia (Univ. del Valle), Costa Rica (ICE), México (IMT, CINVESTAV-Mérida, UADY), Spain (IETCC), Uruguay (Univ. de la Rep.), Portugal (LNEC), Venezuela (CEC-LUZ, UCLA). The authors also acknowledge the National Councils for Science and Technology (ONCYTs), from the different Iberoamerican countries involved, for partially supporting this project.
PY - 2007/7
Y1 - 2007/7
N2 - This work presents some of the results from the project: "Effect of the environment on reinforcement durability" (DURACON) in its first two-years period, which investigates the influence of urban and marine meteorochemical parameters on the performance of reinforced concrete structures. The results presented in this investigation are from 21 marine test sites only (no urban environments are included), distributed among 11 countries (Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Mexico, Spain, Uruguay, Portugal and Venezuela). The environment was evaluated using ISO Standard 9223 and the concrete was characterized by measuring compressive strength, elastic modulus, total and effective porosity, chloride permeability according to ASTM standards, as well as the effective porosity and resistance to water absorption using the Fagerlund method. To that effect, concrete specimens (with and without reinforcement) were prepared for electrochemical and physical/mechanical/chemical tests using the existing materials in each participating country, following strict procedures which enabled the preparation of similar concrete samples. Two water/cement (w/c) ratios (0.45 and 0.65) were selected, where the concrete with 0.45 w/c ratio had to have a minimum cement content of 400 kg/m3 and the one with 0.65 w/c ratio a compressive strength of 210 kg/cm2. Type I Portland cement, siliceous sand, and crushed rock as coarse aggregates (13-mm maximum nominal size) were used. After a one-year exposure, the results of the corrosion potentiality and probability analysis of the reinforcement in the different test stations showed that, for marine atmospheres, the most aggressive environment to induce steel corrosion was at Portugal's Cabo Raso station, and the least aggressive one was at Chile's Valparaíso station. These results are comparable with the ones found using electrochemical measurements, after a two-year exposure.
AB - This work presents some of the results from the project: "Effect of the environment on reinforcement durability" (DURACON) in its first two-years period, which investigates the influence of urban and marine meteorochemical parameters on the performance of reinforced concrete structures. The results presented in this investigation are from 21 marine test sites only (no urban environments are included), distributed among 11 countries (Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Mexico, Spain, Uruguay, Portugal and Venezuela). The environment was evaluated using ISO Standard 9223 and the concrete was characterized by measuring compressive strength, elastic modulus, total and effective porosity, chloride permeability according to ASTM standards, as well as the effective porosity and resistance to water absorption using the Fagerlund method. To that effect, concrete specimens (with and without reinforcement) were prepared for electrochemical and physical/mechanical/chemical tests using the existing materials in each participating country, following strict procedures which enabled the preparation of similar concrete samples. Two water/cement (w/c) ratios (0.45 and 0.65) were selected, where the concrete with 0.45 w/c ratio had to have a minimum cement content of 400 kg/m3 and the one with 0.65 w/c ratio a compressive strength of 210 kg/cm2. Type I Portland cement, siliceous sand, and crushed rock as coarse aggregates (13-mm maximum nominal size) were used. After a one-year exposure, the results of the corrosion potentiality and probability analysis of the reinforcement in the different test stations showed that, for marine atmospheres, the most aggressive environment to induce steel corrosion was at Portugal's Cabo Raso station, and the least aggressive one was at Chile's Valparaíso station. These results are comparable with the ones found using electrochemical measurements, after a two-year exposure.
KW - A. Reinforced concrete
KW - B. Environmental factors
KW - C. Atmospheric corrosion
KW - C. Chloride-ion diffusion
UR - http://www.scopus.com/inward/record.url?scp=34249107768&partnerID=8YFLogxK
U2 - 10.1016/j.corsci.2007.02.009
DO - 10.1016/j.corsci.2007.02.009
M3 - Article
AN - SCOPUS:34249107768
SN - 0010-938X
VL - 49
SP - 2832
EP - 2843
JO - Corrosion Science
JF - Corrosion Science
IS - 7
ER -
