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Full-time researcher at II-FIC of the Autonomous University of Nuevo León. Member of the National System of Investigators Level I of CONACYT.Research lines Durability of concrete structures and Sustainable materials. Research and academic contributions with Basic and applied science research projects. Publication of indexed articles (JCR), presentation at national and international conferences.Training of human resources in engineering, masters and doctorates.
This research evaluates the behavior corrosion of galvanized steel (GS) and AISI 1018 carbon steel (CS) embedded in conventional concrete (CC) made with 100% CPC 30R and two binary sustainable concretes (BSC1 and BSC2) made with sugar cane bagasse ash (SCBA) and silica fume (SF), respectively, after 300 days of exposure to 3.5 wt.% MgSO4 solution as aggressive medium. Electrochemical techniques were applied to monitor corrosion potential (E corr) according to ASTM C-876-15 and linear polarization resistance (LPR) according to ASTM G59 for determining corrosion current density (i corr). E corr and i corr results indicate after more than 300 days of exposure to the sulfate environment (3.5 wt.% MgSO4 solution), that the CS specimens embedded in BSC1 and BSC2 presented greater protection against corrosion in 3.5 wt.% MgSO4 than the specimens embedded in CC. It was also shown that this protection against sulfates is significantly increased when using GS reinforcements. The results indicate a higher resistance to corrosion by exposure to 3.5 wt.% magnesium sulfate two times greater for BSC1 and BSC2 specimens reinforced with GS than the specimens embedding CS. In summary, the combination of binary sustainable concrete with galvanized steel improves durability and lifetime in service, in addition to reducing the environmental impact of the civil engineering structures.
Laura Landa-Ruiz; Miguel Baltazar-Zamora; Juan Bosch; Jacob Ress; Griselda Santiago-Hurtado; Victor Moreno-Landeros; Sabino Márquez-Montero; Ce Méndez; Adan Borunda; César Juárez-Alvarado; José Mendoza-Rangel; David. Bastidas. Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates. Applied Sciences 2021, 11, 2133 .
AMA StyleLaura Landa-Ruiz, Miguel Baltazar-Zamora, Juan Bosch, Jacob Ress, Griselda Santiago-Hurtado, Victor Moreno-Landeros, Sabino Márquez-Montero, Ce Méndez, Adan Borunda, César Juárez-Alvarado, José Mendoza-Rangel, David. Bastidas. Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates. Applied Sciences. 2021; 11 (5):2133.
Chicago/Turabian StyleLaura Landa-Ruiz; Miguel Baltazar-Zamora; Juan Bosch; Jacob Ress; Griselda Santiago-Hurtado; Victor Moreno-Landeros; Sabino Márquez-Montero; Ce Méndez; Adan Borunda; César Juárez-Alvarado; José Mendoza-Rangel; David. Bastidas. 2021. "Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates." Applied Sciences 11, no. 5: 2133.
Concrete barely possesses tensile strength, and it is susceptible to cracking, which leads to a reduction of its service life. Consequently, it is significant to find a complementary material that helps alleviate these drawbacks. The aim of this research was to determine analytically and experimentally the effect of the addition of the steel fibers on the performance of the post-cracking stage on fiber-reinforced concrete, by studying four notch-to-depth ratios of 0, 0.08, 0.16, and 0.33. This was evaluated through 72 bending tests, using plain concrete (control) and fiber-reinforced concrete with volume fibers of 0.25% and 0.50%. Results showed that the specimens with a notch-to-depth ratio up to 0.33 are capable of attaining a hardening behavior. The study concludes that the increase in the dosage leads to an improvement in the residual performance, even though an increase in the notch-to-depth ratio has also occurred.
José Valdez Aguilar; Cesar Juárez-Alvarado; José Mendoza-Rangel; Bernardo Terán-Torres. Effect of the Notch-to-Depth Ratio on the Post-Cracking Behavior of Steel-Fiber-Reinforced Concrete. Materials 2021, 14, 445 .
AMA StyleJosé Valdez Aguilar, Cesar Juárez-Alvarado, José Mendoza-Rangel, Bernardo Terán-Torres. Effect of the Notch-to-Depth Ratio on the Post-Cracking Behavior of Steel-Fiber-Reinforced Concrete. Materials. 2021; 14 (2):445.
Chicago/Turabian StyleJosé Valdez Aguilar; Cesar Juárez-Alvarado; José Mendoza-Rangel; Bernardo Terán-Torres. 2021. "Effect of the Notch-to-Depth Ratio on the Post-Cracking Behavior of Steel-Fiber-Reinforced Concrete." Materials 14, no. 2: 445.
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.
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.
This work aims to investigate the design of clay matrices with optimum granulometry for their use in compressed earth blocks with and without stabilizers. The results and discussion focus on the mechanical properties, compressive strength anisotropy according to the compaction direction, and durability tests such as abrasion and absorption coefficients. The results show that the granulometry is an important aspect for matrices without stabilizers, as well as the applied compaction forces, obtaining values greater than 2 MPa with compaction forces of 1.96 kN. The clay-sand microstructure matrices are densified when the stabilizers are added, which causes a change in the failure mechanism due to the stiffening of the matrix.
Javier Rodrigo González López; César A. Juárez-Alvarado; Bárbara Ayub-Francis; José Manuel Mendoza-Rangel. Compaction effect on the compressive strength and durability of stabilized earth blocks. Construction and Building Materials 2018, 163, 179 -188.
AMA StyleJavier Rodrigo González López, César A. Juárez-Alvarado, Bárbara Ayub-Francis, José Manuel Mendoza-Rangel. Compaction effect on the compressive strength and durability of stabilized earth blocks. Construction and Building Materials. 2018; 163 ():179-188.
Chicago/Turabian StyleJavier Rodrigo González López; César A. Juárez-Alvarado; Bárbara Ayub-Francis; José Manuel Mendoza-Rangel. 2018. "Compaction effect on the compressive strength and durability of stabilized earth blocks." Construction and Building Materials 163, no. : 179-188.
Exposure to aggressive agents such as chlorides facilitates the corrosion process of the transversal reinforcement (stirrups) of concrete beams, as the steel of these reinforcements is closest to the concrete’s surface. Two groups of eight beams each were fabricated, and had a separation of either 150 or 200 mm between stirrups for each series. During the first stage, beams were exposed to wetting cycles using a 3.5% NaCl solution, and were then subjected to a drying process until steel depassivation was reached. Subsequently, a 100 μA/cm2 printed current was applied for either 80 (moderate) or 120 (severe) days in order to reach different levels of corrosion in the stirrups. Results showed that the ultimate shear strength was influenced mainly by moderate and severe levels of deterioration, as beams subjected to these treatment levels showed a 30% decrease in ultimate shear strength relative to control beams. Additionally, beam ductility was affected by levels of moderate and severe deterioration of stirrups, and this was evident due to the brittleness and sudden failure observed during beam testing. Finally, our findings indicated that the average remaining section based on the critical diameter of the stirrups was a reliable predictor of ultimate shear strength.
C.A. Juarez; B. Guevara; G. Fajardo; P. Castro-Borges. Ultimate and nominal shear strength in reinforced concrete beams deteriorated by corrosion. Engineering Structures 2011, 33, 3189 -3196.
AMA StyleC.A. Juarez, B. Guevara, G. Fajardo, P. Castro-Borges. Ultimate and nominal shear strength in reinforced concrete beams deteriorated by corrosion. Engineering Structures. 2011; 33 (12):3189-3196.
Chicago/Turabian StyleC.A. Juarez; B. Guevara; G. Fajardo; P. Castro-Borges. 2011. "Ultimate and nominal shear strength in reinforced concrete beams deteriorated by corrosion." Engineering Structures 33, no. 12: 3189-3196.