Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures
The properties of high-performance concretes obtained by the internal curing technique were studied in the fresh and hardened states. In some of the concrete mixtures, fine normal weight aggregates were replaced with lightweight aggregates (LWA) at 20 % vol. and ordinary portland cement was replaced...
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Electrochemical Science Group
2018
|
| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/16214/1/127.pdf |
| _version_ | 1824414537273573376 |
|---|---|
| author | Vázquez Rodríguez, Francisco Javier Arato Tovar, Ana María Martínez Delgado, Dora Irma Guzmán, A. Elizondo Villarreal, Nora Puente Ornelas, Rodrigo Rodriguez, Edén |
| author_facet | Vázquez Rodríguez, Francisco Javier Arato Tovar, Ana María Martínez Delgado, Dora Irma Guzmán, A. Elizondo Villarreal, Nora Puente Ornelas, Rodrigo Rodriguez, Edén |
| author_sort | Vázquez Rodríguez, Francisco Javier |
| collection | Repositorio Institucional |
| description | The properties of high-performance concretes obtained by the internal curing technique were studied in the fresh and hardened states. In some of the concrete mixtures, fine normal weight aggregates were replaced with lightweight aggregates (LWA) at 20 % vol. and ordinary portland cement was replaced by pulverized class F fly ash at 20 % by mass. Additionally, some mixtures were prepared including a shrinkage-reducing admixture, either as part of the mixing water or pre-soaked into the lightweight fine aggregates. The prepared concretes were subjected to degradation tests, such as accelerated carbonation and chloride ion deterioration. In addition, the reinforced concretes were analyzed through electrochemical corrosion tests with the linear polarization resistance technique. It was found that the internally cured concretes presented a mechanical resistance similar to those reported for the reference concretes (conventional concretes), but provided a higher resistance to carbonation, rapid penetration of chloride ions, and a lower chloride ion diffusion coefficient. The reinforcing steel structure in the internally cured concretes showed lower corrosion currents (Icorr) and corrosion potentials (Ecorr) in comparison to the reference concretes. Therefore, the use of the internal curing technique in concretes with pre-soaking in either water or a solution of shrinkage-reducing admixture can be considered as a viable alternative to extend the service life of concrete structures in contact with harmful environments. |
| format | Article |
| id | eprints-16214 |
| institution | UANL |
| language | English |
| publishDate | 2018 |
| publisher | Electrochemical Science Group |
| record_format | eprints |
| spelling | eprints-162142021-10-19T20:52:47Z http://eprints.uanl.mx/16214/ Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures Vázquez Rodríguez, Francisco Javier Arato Tovar, Ana María Martínez Delgado, Dora Irma Guzmán, A. Elizondo Villarreal, Nora Puente Ornelas, Rodrigo Rodriguez, Edén QD Química The properties of high-performance concretes obtained by the internal curing technique were studied in the fresh and hardened states. In some of the concrete mixtures, fine normal weight aggregates were replaced with lightweight aggregates (LWA) at 20 % vol. and ordinary portland cement was replaced by pulverized class F fly ash at 20 % by mass. Additionally, some mixtures were prepared including a shrinkage-reducing admixture, either as part of the mixing water or pre-soaked into the lightweight fine aggregates. The prepared concretes were subjected to degradation tests, such as accelerated carbonation and chloride ion deterioration. In addition, the reinforced concretes were analyzed through electrochemical corrosion tests with the linear polarization resistance technique. It was found that the internally cured concretes presented a mechanical resistance similar to those reported for the reference concretes (conventional concretes), but provided a higher resistance to carbonation, rapid penetration of chloride ions, and a lower chloride ion diffusion coefficient. The reinforcing steel structure in the internally cured concretes showed lower corrosion currents (Icorr) and corrosion potentials (Ecorr) in comparison to the reference concretes. Therefore, the use of the internal curing technique in concretes with pre-soaking in either water or a solution of shrinkage-reducing admixture can be considered as a viable alternative to extend the service life of concrete structures in contact with harmful environments. Electrochemical Science Group 2018-05-10 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/16214/1/127.pdf http://eprints.uanl.mx/16214/1.haspreviewThumbnailVersion/127.pdf Vázquez Rodríguez, Francisco Javier y Arato Tovar, Ana María y Martínez Delgado, Dora Irma y Guzmán, A. y Elizondo Villarreal, Nora y Puente Ornelas, Rodrigo y Rodriguez, Edén (2018) Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures. International Journal of Electrochemical Science, 13 (4). pp. 6027-6047. ISSN 14523981 http://doi.org/10.20964/2018.06.25 doi:10.20964/2018.06.25 |
| spellingShingle | QD Química Vázquez Rodríguez, Francisco Javier Arato Tovar, Ana María Martínez Delgado, Dora Irma Guzmán, A. Elizondo Villarreal, Nora Puente Ornelas, Rodrigo Rodriguez, Edén Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| title_full | Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| title_fullStr | Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| title_full_unstemmed | Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| title_short | Evaluation of Chloride Diffusion and Corrosion Resistance in Reinforced Concrete Using Internal Curing and Shrinkage Reducing Admixtures |
| title_sort | evaluation of chloride diffusion and corrosion resistance in reinforced concrete using internal curing and shrinkage reducing admixtures |
| topic | QD Química |
| url | http://eprints.uanl.mx/16214/1/127.pdf |
| work_keys_str_mv | AT vazquezrodriguezfranciscojavier evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT aratotovaranamaria evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT martinezdelgadodorairma evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT guzmana evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT elizondovillarrealnora evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT puenteornelasrodrigo evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures AT rodriguezeden evaluationofchloridediffusionandcorrosionresistanceinreinforcedconcreteusinginternalcuringandshrinkagereducingadmixtures |