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This investigation reports on the mechanisms of reaction, microstructure, hydration products, compressive strength and environmental impact of supersulfated cements based on pumice (SSC-PM), using 10–20%wt of quicklime (CaO) as the alkaline activator and 5–15%wt of sulfatic activators of anhydrite or hemihydrate; three different initial curing temperature (ICT) regimes were used for 24 h, of 20, 40 and 60 °C. The main hydration products were C–S–H and ettringite; minor phases included monosulfate, gypsum, portlandite and calcite. The ICT of 60 °C accelerated the reactions of formation of ettringite and C–S–H, improving the early strength, whereas; the higher contents CaO (20%) and An or HH (15%) slowed the hydration reactions and consequently the early strength development. The activation with CaO-Anhydrite densified the microstructure leading to 360-day strengths of up to 34 MPa. These SSC-PM represent a good sustainable alternative as these showed emissions of 159–281 kgCO2-eq/t, which are at least 67% lower than the manufacture of clinker of Portland cement.
K. Cabrera-Luna; E.E. Maldonado-Bandala; D. Nieves-Mendoza; P. Castro-Borges; P. Perez-Cortes; J.I. Escalante García. Supersulfated cements based on pumice with quicklime, anhydrite and hemihydrate: Characterization and environmental impact. Cement and Concrete Composites 2021, 104236 .
AMA StyleK. Cabrera-Luna, E.E. Maldonado-Bandala, D. Nieves-Mendoza, P. Castro-Borges, P. Perez-Cortes, J.I. Escalante García. Supersulfated cements based on pumice with quicklime, anhydrite and hemihydrate: Characterization and environmental impact. Cement and Concrete Composites. 2021; ():104236.
Chicago/Turabian StyleK. Cabrera-Luna; E.E. Maldonado-Bandala; D. Nieves-Mendoza; P. Castro-Borges; P. Perez-Cortes; J.I. Escalante García. 2021. "Supersulfated cements based on pumice with quicklime, anhydrite and hemihydrate: Characterization and environmental impact." Cement and Concrete Composites , no. : 104236.
En este número del boletín de noticias (V3N2) pueden encontrar toda la información de los nuevos eventos que Alconpat Internacional tiene para ustedes. Uno de ellos es la nueva serie de webinarios titulada: “Puentes con la Sociedad”, donde se invitará a intelectuales, filósofos o economistas para que nos adentre en los temas como el cambio climático y las formas de mitigarlo. Otro de los eventos que están en marcha es la 3era y 4ta edición del Seminario Internacional de Jóvenes, que se realizará el 07 y 21 de julio, cada una contará con 2 sesiones magistrales y 6 conferencias de jóvenes investigadores en las áreas afines a la asociación. Las celebraciones en Alconpat no terminan, en este número hacemos alusión a 1er CONPAT realizado en Argentina hace ya 30 años, así como una pequeña reseña de la celebración académica del 10mo aniversario de la Revista Alconpat. También puede encontrar información sobre las Alconpat Nacionales y nuestros socios Mantenedores, como por ejemplo: una nueva directiva en Alconpat Paraguay y mucho más, espero sea de su completo agrado.
Lourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021) 2021, 1 .
AMA StyleLourdes Bernarda Pérez Mesa, Alconpat Internacional, Alexia Xiomara Zozaya Ortíz, Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021). 2021; ():1.
Chicago/Turabian StyleLourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. 2021. "Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021)." Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V3N2, 2021) , no. : 1.
En este número del Boletín de Noticias (V2N3) se hace un recuento de los eventos realizados en la asociación (Alconpat Internacional) que comprenden los meses de septiembre a diciembre del 2020, entre los cuales se pueden encontrar: actividades de los Alconpat Nacionales; 6 senior webinars organizados por uno de nuestros socios Colectivos; un reconocimiento a la excelencia (reconocimientos SNEM ACI 2020) entregado a uno de nuestros socios activos, El Dr. Pedro Castro Borges; además se realiza un tributo al maestro Harold Muñoz y por último podemos encontrar un calendario de los próximos eventos programados para fechas próximas, esperamos sea de su agrado.
Lourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020) 2020, 1 .
AMA StyleLourdes Bernarda Pérez Mesa, Alconpat Internacional, Alexia Xiomara Zozaya Ortíz, Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). 2020; ():1.
Chicago/Turabian StyleLourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. 2020. "Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020)." Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020) , no. : 1.
En este número del Boletín de Noticias (V2N3) se hace un recuento de los eventos realizados en la asociación (Alconpat Internacional) que comprenden los meses de septiembre a diciembre del 2020, entre los cuales se pueden encontrar: actividades de los Alconpat Nacionales; 6 senior webinars organizados por uno de nuestros socios Colectivos; un reconocimiento a la excelencia (reconocimientos SNEM ACI 2020) entregado a uno de nuestros socios activos, El Dr. Pedro Castro Borges; además se realiza un tributo al maestro Harold Muñoz y por último podemos encontrar un calendario de los próximos eventos programados para fechas próximas, esperamos sea de su agrado.
Lourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020) 2020, 1 .
AMA StyleLourdes Bernarda Pérez Mesa, Alconpat Internacional, Alexia Xiomara Zozaya Ortíz, Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020). 2020; ():1.
Chicago/Turabian StyleLourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. 2020. "Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020)." Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N3, 2020) , no. : 1.
Durability control through design and health monitoring of a new viaduct (bridge), to achieve an 80‐year service life, is discussed. Manufacture of durable concrete is also discussed and deals mainly with the geometry/shape selection of the structural elements and materials selection (especially the adequate cement type and mineral additions to decrease concrete's porosity). Durability health monitoring was performed during the construction stage, based on concrete performance using the saturated electrical resistivity technique, using cores extracted at new fabricated structural elements. Finally, discussion is presented on how quality assurance is obtained based again from cores extracted at the structural elements exposed to the natural environment, before the construction stage ends, to reverse possible defects and take actions in order to correct them.
Andrés Antonio Torres‐Acosta; Pedro Castro‐Borges. Durability control through design and health monitoring during construction. Structural Control and Health Monitoring 2020, 28, 1 .
AMA StyleAndrés Antonio Torres‐Acosta, Pedro Castro‐Borges. Durability control through design and health monitoring during construction. Structural Control and Health Monitoring. 2020; 28 (2):1.
Chicago/Turabian StyleAndrés Antonio Torres‐Acosta; Pedro Castro‐Borges. 2020. "Durability control through design and health monitoring during construction." Structural Control and Health Monitoring 28, no. 2: 1.
Corrosion of the reinforced concrete (RC) structures has been affecting the major infrastructures in U.S. and in other continents, causing the recent several bridge collapses and incidents. While the theoretical understanding is well-established, the reliable prediction of the corrosion process in the RC structural systems has hardly been successful due to the inherent uncertainties existed in the electrochemical corrosion process and the associated material and environmental conditions. The paper proposes a computational framework to develop evidence-based probabilistic corrosion initiation models for the reinforcing steels in the RC structures, which predicts the corrosion initiation time and quantifies the inherent variances considering various acting parameters. The framework includes: probabilistic modeling with Bayesian updating based on the sets of previously generated experimental data; Bayesian model/parameter selection considering various parameters, such as material properties and environmental conditions; corrosion reliability analyses to predict the probabilities of the corrosion initiation at given time t, structural configurations, and environmental conditions; and sensitivity analyses to measure and to rank the influences of each acting parameter and its uncertainty to the probabilities of the corrosion initiation. Total of 284 sets of experimental data exposed to the coastal atmospheric environments are used for the modeling. The goal of the Bayesian model selection presented in this paper is to obtain the most accurate and unbiased model using the simplest form of expression. The developed example corrosion model is currently limited to the initiation of diffusion-induced corrosion. The model can be updated, improved, or modified upon future available sets of data. The research contributes to the decision making to improve the corrosion reliability, corrosion control, and further the structural reliability of corroding structures.
Changkyu Kim; Do-Eun Choe; Pedro Castro-Borges; Homero Castaneda. Probabilistic Corrosion Initiation Model for Coastal Concrete Structures. Corrosion and Materials Degradation 2020, 1, 328 -344.
AMA StyleChangkyu Kim, Do-Eun Choe, Pedro Castro-Borges, Homero Castaneda. Probabilistic Corrosion Initiation Model for Coastal Concrete Structures. Corrosion and Materials Degradation. 2020; 1 (3):328-344.
Chicago/Turabian StyleChangkyu Kim; Do-Eun Choe; Pedro Castro-Borges; Homero Castaneda. 2020. "Probabilistic Corrosion Initiation Model for Coastal Concrete Structures." Corrosion and Materials Degradation 1, no. 3: 328-344.
A consistent method to generate and measure deterioration by corrosion in transverse reinforcements for concrete beams is presented and discussed in this work. This approach could be applied in other circumstances, such as bending, compression or combinations of stresses, with comparable results and therefore can be used to ensure sustainability. In marine environments, macro-cells are produced primarily from a transverse reinforcement, which works as an anode and therefore becomes a critical part of the structural analysis. To evaluate the adaptation efficiency of our proposed method, the corrosion potential, mass losses and cross-section reductions of the steel were measured. The shear stress behavior of the beams was investigated, including beam responses to load deformations, failure modes and cracking. The method ensured that all the beams exhibited a shear failure from diagonal stress with almost 50% less deflection when mechanically tested. The critical cross-sectional area, calculated according to the experimental diameter with the greatest cross-sectional loss due to the corrosion of the deteriorated stirrup, proved to be a reliable value for predicting the ultimate shear strength of concrete beams deteriorated by severe corrosion. A reduction of up to 30% in the shear strength of deteriorated versus non-deteriorated beams was found. Additional results showed that there is a correlation between the experimental and theoretical results and that the method is reproducible.
P. Castro-Borges; C. A. Juárez-Alvarado; R. I. Soto-Ibarra; J. A. Briceño-Mena; G. Fajardo-San Miguel; P. Valdez-Tamez. Effect of Corrosion in the Transverse Reinforcements in Concrete Beams: Sustainable Method to Generate and Measure Deterioration. Sustainability 2020, 12, 8105 .
AMA StyleP. Castro-Borges, C. A. Juárez-Alvarado, R. I. Soto-Ibarra, J. A. Briceño-Mena, G. Fajardo-San Miguel, P. Valdez-Tamez. Effect of Corrosion in the Transverse Reinforcements in Concrete Beams: Sustainable Method to Generate and Measure Deterioration. Sustainability. 2020; 12 (19):8105.
Chicago/Turabian StyleP. Castro-Borges; C. A. Juárez-Alvarado; R. I. Soto-Ibarra; J. A. Briceño-Mena; G. Fajardo-San Miguel; P. Valdez-Tamez. 2020. "Effect of Corrosion in the Transverse Reinforcements in Concrete Beams: Sustainable Method to Generate and Measure Deterioration." Sustainability 12, no. 19: 8105.
Pedro Garcés Terradillos; Alicante Universidad De Alicante; Oladis Troconis De Rincón; Pedro Castro Borges; Erick Edgar Maldonado Bandala; Carmen Andrade Perdrix; Maracaibo Universidad Del Zulia; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Universidad Veracruzana Facultad De Ingeniería Civil; Madrid Centro Internacional De Métodos Númericos En Ingeniería. Recomendaciones sobre Velocidad de Corrosión. Recomendaciones Técnicas 2020, 1 -12.
AMA StylePedro Garcés Terradillos, Alicante Universidad De Alicante, Oladis Troconis De Rincón, Pedro Castro Borges, Erick Edgar Maldonado Bandala, Carmen Andrade Perdrix, Maracaibo Universidad Del Zulia, Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn, Universidad Veracruzana Facultad De Ingeniería Civil, Madrid Centro Internacional De Métodos Númericos En Ingeniería. Recomendaciones sobre Velocidad de Corrosión. Recomendaciones Técnicas. 2020; ():1-12.
Chicago/Turabian StylePedro Garcés Terradillos; Alicante Universidad De Alicante; Oladis Troconis De Rincón; Pedro Castro Borges; Erick Edgar Maldonado Bandala; Carmen Andrade Perdrix; Maracaibo Universidad Del Zulia; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Universidad Veracruzana Facultad De Ingeniería Civil; Madrid Centro Internacional De Métodos Númericos En Ingeniería. 2020. "Recomendaciones sobre Velocidad de Corrosión." Recomendaciones Técnicas , no. : 1-12.
Pedro Castro Borges; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Jorge Alberto Briceño Mena; Andrés Antonio Torres Acosta; Queretaro Instituto Tecnológico Y De Estudios Superiores De Monterrey: Queretaro. Recomendaciones generales sobre durabilidad. Recomendaciones Técnicas 2020, 1 -44.
AMA StylePedro Castro Borges, Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn, Jorge Alberto Briceño Mena, Andrés Antonio Torres Acosta, Queretaro Instituto Tecnológico Y De Estudios Superiores De Monterrey: Queretaro. Recomendaciones generales sobre durabilidad. Recomendaciones Técnicas. 2020; ():1-44.
Chicago/Turabian StylePedro Castro Borges; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Jorge Alberto Briceño Mena; Andrés Antonio Torres Acosta; Queretaro Instituto Tecnológico Y De Estudios Superiores De Monterrey: Queretaro. 2020. "Recomendaciones generales sobre durabilidad." Recomendaciones Técnicas , no. : 1-44.
Pedro Garcés Terradillos; Alicante Universidad De Alicante; Oladis Troconis De Rincón; Pedro Castro Borges; Miguel Angel Baltazar Zamora; Carmen Andrade Perdrix; Maracaibo Universidad Del Zulia; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Universidad Veracruzana Facultad De Ingeniería Civil; Madrid Centro Internacional De Métodos Númericos En Ingeniería. Recomendaciones sobre Potenciales de Corrosión. Recomendaciones Técnicas 2020, 1 -7.
AMA StylePedro Garcés Terradillos, Alicante Universidad De Alicante, Oladis Troconis De Rincón, Pedro Castro Borges, Miguel Angel Baltazar Zamora, Carmen Andrade Perdrix, Maracaibo Universidad Del Zulia, Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn, Universidad Veracruzana Facultad De Ingeniería Civil, Madrid Centro Internacional De Métodos Númericos En Ingeniería. Recomendaciones sobre Potenciales de Corrosión. Recomendaciones Técnicas. 2020; ():1-7.
Chicago/Turabian StylePedro Garcés Terradillos; Alicante Universidad De Alicante; Oladis Troconis De Rincón; Pedro Castro Borges; Miguel Angel Baltazar Zamora; Carmen Andrade Perdrix; Maracaibo Universidad Del Zulia; Unidad Mérida Centro De Investigación Y De Estudios Avanzados Del Ipn; Universidad Veracruzana Facultad De Ingeniería Civil; Madrid Centro Internacional De Métodos Númericos En Ingeniería. 2020. "Recomendaciones sobre Potenciales de Corrosión." Recomendaciones Técnicas , no. : 1-7.
Lourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020) 2020, 1 .
AMA StyleLourdes Bernarda Pérez Mesa, Alconpat Internacional, Alexia Xiomara Zozaya Ortíz, Pedro Castro Borges. Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020). Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020). 2020; ():1.
Chicago/Turabian StyleLourdes Bernarda Pérez Mesa; Alconpat Internacional; Alexia Xiomara Zozaya Ortíz; Pedro Castro Borges. 2020. "Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020)." Boletín de Noticias "Entre Patologos" de Alconpat Internacional (V2N2, 2020) , no. : 1.
The passivation process quality was studied considering polarization periodicity, passivation consolidation parameters, and data processing. Passivation process quality in steel reinforcement affects a structure’s planned future service life. Some research has addressed this phenomenon, but its study is complicated by the limits of analog-era data, dispersion in corrosion rate data, and their interpretation. Two series of small reinforced concrete specimens were built using two water/cement ratios and two curing/storage combinations and exposed to the marine environment. Polarization periodicity did not affect passivation/depassivation during passivation but on the data processing. The curing and storage process influenced the tendency towards depassivation. Post-curing storage type affected the cumulative corrosion rate from 1 to 5 μA*day/cm2; this is equivalent to the margin of uncertainty in interpretation.
Jorge Alberto Briceño-Mena; Mercedes Guadalupe Balancán-Zapata; Pedro Castro Borges. Passivation process quality in reinforced concrete: effects of polarization periodicity and passivation consolidation parameters on data processing. Revista ALCONPAT 2020, 10, 243 -258.
AMA StyleJorge Alberto Briceño-Mena, Mercedes Guadalupe Balancán-Zapata, Pedro Castro Borges. Passivation process quality in reinforced concrete: effects of polarization periodicity and passivation consolidation parameters on data processing. Revista ALCONPAT. 2020; 10 (2):243-258.
Chicago/Turabian StyleJorge Alberto Briceño-Mena; Mercedes Guadalupe Balancán-Zapata; Pedro Castro Borges. 2020. "Passivation process quality in reinforced concrete: effects of polarization periodicity and passivation consolidation parameters on data processing." Revista ALCONPAT 10, no. 2: 243-258.
The efficiency of surface protection of sealing masonry structures with intumescent ink was evaluated in relation to mechanical resistance and thermal insulation. Sixty ceramic sealing masonry blocks were used. The temperature of the face directly exposed to the flame was on average 25% lower for the block with passive protection. The compressive strength of the blocks with passive protection was about 70% higher than the unprotected blocks, after 60 minutes of direct exposure to the flame. More than 70% of the blocks without passive protection and that were exposed to flame had compressive resistance of 1.35 MPa, while 100% of the blocks with protection had values 2.38 MPa, even after 60 minutes of exposure
Carlos Alexandre Santos Sales; Carlos Nascimento; Thais Marques Da Silva; Lydia Marques Barreto; Alberto Casado Lordsleem Júnior; Willames Soares; Pedro Castro Borges; Eliana Cristina Barreto Monteiro. Fire resistance of ceramic-masonry sealing blocks using intumescent paint protection. Revista ALCONPAT 2019, 10, 53 -68.
AMA StyleCarlos Alexandre Santos Sales, Carlos Nascimento, Thais Marques Da Silva, Lydia Marques Barreto, Alberto Casado Lordsleem Júnior, Willames Soares, Pedro Castro Borges, Eliana Cristina Barreto Monteiro. Fire resistance of ceramic-masonry sealing blocks using intumescent paint protection. Revista ALCONPAT. 2019; 10 (1):53-68.
Chicago/Turabian StyleCarlos Alexandre Santos Sales; Carlos Nascimento; Thais Marques Da Silva; Lydia Marques Barreto; Alberto Casado Lordsleem Júnior; Willames Soares; Pedro Castro Borges; Eliana Cristina Barreto Monteiro. 2019. "Fire resistance of ceramic-masonry sealing blocks using intumescent paint protection." Revista ALCONPAT 10, no. 1: 53-68.
El objetivo de este documento es analizar y discutir un enfoque conceptual que considera el carácter holístico de la vida de servicio concreta, pero lo divide en siete etapas de tiempo que se pueden comparar, para fines de comprensión, con las de un ser humano. Los conceptos existentes sobre la vida útil pueden ser incompletos con respecto a aquellos que deben considerar toda la vida de una estructura concreta. Una de las razones para esto es la falta de certeza de las predicciones de la vida útil que se basan en modelos que consideran una combinación de etapas de tiempo no claramente definidas. La vida de una estructura tiene muchas similitudes con la de un ser humano. De hecho, no es coincidencia que la ingeniería haya adoptado algunos términos de las ciencias médicas como "patología" para referirse a estructuras con problemas de "salud". El documento analiza la superposición de las diferentes etapas de tiempo, así como las razones por las que los modelos de predicción pueden fallar.
Pedro Castro-Borges; Paulo Helene. Un enfoque conceptual holístico para la vida de servicio del concreto: división en diferentes etapas de tiempo. Revista ALCONPAT 2018, 8, 280 -287.
AMA StylePedro Castro-Borges, Paulo Helene. Un enfoque conceptual holístico para la vida de servicio del concreto: división en diferentes etapas de tiempo. Revista ALCONPAT. 2018; 8 (3):280-287.
Chicago/Turabian StylePedro Castro-Borges; Paulo Helene. 2018. "Un enfoque conceptual holístico para la vida de servicio del concreto: división en diferentes etapas de tiempo." Revista ALCONPAT 8, no. 3: 280-287.
Se realizó una prueba de carga viva y un análisis de calificación en un muelle dañado por la corrosión en el Golfo de México para evaluar su integridad estructural. Los procedimientos incluyeron instrumentación para la aplicación de carga de cuatro cargas diferentes (50, 60, 350 y 700 Toneladas) para examinar su rendimiento estructural, luego calibrar los modelos de elementos finitos resultantes de la estructura y finalmente estimar los factores de clasificación de carga utilizando la metodología AASHTO. Los resultados mostraron que los daños por corrosión no representaron una amenaza estructural extrema; sin embargo, se descubrió que los elementos estructurales de varios pilares actualmente están sobrecargados y necesitan ser reforzados externamente. Se describen los procedimientos de prueba, el análisis y el manejo de datos.
Andrés Antonio Torres-Acosta; Miguel Martínez-Madrid; Pedro Castro-Borges; Scott Aschermann; Brett Commander; Jesse Grimson. Evaluación de capacidad de carga de la estructura de un muelle corroído en el Golfo de México. Revista ALCONPAT 2018, 8, 347 -362.
AMA StyleAndrés Antonio Torres-Acosta, Miguel Martínez-Madrid, Pedro Castro-Borges, Scott Aschermann, Brett Commander, Jesse Grimson. Evaluación de capacidad de carga de la estructura de un muelle corroído en el Golfo de México. Revista ALCONPAT. 2018; 8 (3):347-362.
Chicago/Turabian StyleAndrés Antonio Torres-Acosta; Miguel Martínez-Madrid; Pedro Castro-Borges; Scott Aschermann; Brett Commander; Jesse Grimson. 2018. "Evaluación de capacidad de carga de la estructura de un muelle corroído en el Golfo de México." Revista ALCONPAT 8, no. 3: 347-362.
The objective of this paper is to report the improvement of sustainability through the increase of reinforced concrete corrosion resistance by using a blended cement and fly ash. Different reinforced concrete mixtures were prepared with partial substitution of a manufactured blended cement with fly ash from a thermal power plant in Andorra (Teruel, Spain). These mixtures were manufactured using three different water/cement ratios (0.46, 0.59, and 0.70) and three substitution percentages of cement by fly ash (0%, 25%, and 50%). The test cylinders underwent an accelerated carbonation process and exposure to different chloride levels, with the aim of characterizing the corrosion level of the different mixtures. The addition of local FA matched or even improved the resistance of the control mixture against carbonation and chlorides.
Hector Gerardo Campos Silva; Pedro Garces Terradillos; Emilio Zornoza; Jose Manuel Mendoza-Rangel; Pedro Castro-Borges; Cesar Antonio Juarez Alvarado. Improving Sustainability through Corrosion Resistance of Reinforced Concrete by Using a Manufactured Blended Cement and Fly Ash. Sustainability 2018, 10, 2004 .
AMA StyleHector Gerardo Campos Silva, Pedro Garces Terradillos, Emilio Zornoza, Jose Manuel Mendoza-Rangel, Pedro Castro-Borges, Cesar Antonio Juarez Alvarado. Improving Sustainability through Corrosion Resistance of Reinforced Concrete by Using a Manufactured Blended Cement and Fly Ash. Sustainability. 2018; 10 (6):2004.
Chicago/Turabian StyleHector Gerardo Campos Silva; Pedro Garces Terradillos; Emilio Zornoza; Jose Manuel Mendoza-Rangel; Pedro Castro-Borges; Cesar Antonio Juarez Alvarado. 2018. "Improving Sustainability through Corrosion Resistance of Reinforced Concrete by Using a Manufactured Blended Cement and Fly Ash." Sustainability 10, no. 6: 2004.
The objective of this paper is to discuss the meaning of cumulative corrosion rate (iCCR) of reinforced concrete in a tropical marine microclimate of the Yucatan Peninsula identifying four stages that correspond to passivation, beginning of depassivation, breakdown and formation of subsequent corrosion layers, and nucleation and development of cracks. Sixty Portland cement concrete cylinders were exposed in a tropical marine environment at 50 m from the seashore. One-half of the samples had a reinforcing bar embedded at the center of the sample (corrosion measurements) and the other half was made with plain concrete (chloride measurements). Five water/cement (w/c) ratios and three times of curing (CT) were tested representing the common practices of this region. The corrosion rate was monitored using the linear polarization resistance technique (Rp) which enables calculating the apparent and cumulative corrosion rate. Representative results indicated that iCCR was effective not only to detect the beginning and duration of the reported stages but also to find the right influence of CT and w/c ratios on the corrosion performance of reinforced concrete.
Pedro Castro-Borges; Mercedes Balancán-Zapata; Alexia Zozaya-Ortiz. Electrochemical Meaning of Cumulative Corrosion Rate for Reinforced Concrete in a Tropical Natural Marine Environment. Advances in Materials Science and Engineering 2017, 2017, 1 -8.
AMA StylePedro Castro-Borges, Mercedes Balancán-Zapata, Alexia Zozaya-Ortiz. Electrochemical Meaning of Cumulative Corrosion Rate for Reinforced Concrete in a Tropical Natural Marine Environment. Advances in Materials Science and Engineering. 2017; 2017 ():1-8.
Chicago/Turabian StylePedro Castro-Borges; Mercedes Balancán-Zapata; Alexia Zozaya-Ortiz. 2017. "Electrochemical Meaning of Cumulative Corrosion Rate for Reinforced Concrete in a Tropical Natural Marine Environment." Advances in Materials Science and Engineering 2017, no. : 1-8.