scholarly journals Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates

2021 ◽  
Vol 11 (5) ◽  
pp. 2133
Author(s):  
Laura Landa-Ruiz ◽  
Miguel Angel Baltazar-Zamora ◽  
Juan Bosch ◽  
Jacob Ress ◽  
Griselda Santiago-Hurtado ◽  
...  
Keyword(s):  
Silica Fume ◽  
Sugar Cane ◽  
Electrochemical Techniques ◽  
Aggressive Medium ◽  
Sugar Cane Bagasse ◽  
Galvanized Steel ◽  
Engineering Structures ◽  
Conventional Concrete ◽  
Sustainable Concrete ◽  
Sugar Cane Bagasse Ash

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 (Ecorr) according to ASTM C-876-15 and linear polarization resistance (LPR) according to ASTM G59 for determining corrosion current density (icorr). Ecorr and icorr 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.

scholarly journals Electrochemical Evaluation of AISI 304 SS and Galvanized Steel in Ternary Ecological Concrete based on Sugar Cane Bagasse Ash and Silica Fume (SCBA-SF) exposed to Na2SO4

2020 ◽  
Vol 5 (3) ◽  
pp. 353-357 ◽  
Author(s):  
Miguel Angel Baltazar-Zamora ◽  
Hilda Ariza-Figueroa ◽  
Laura Landa-Ruiz ◽  
René Croche
Keyword(s):  
Silica Fume ◽  
Sugar Cane ◽  
Aggressive Medium ◽  
Sugar Cane Bagasse ◽  
Galvanized Steel ◽  
Partial Substitution ◽  
Hardened Concrete ◽  
Aisi 304 ◽  
Sugar Cane Bagasse Ash ◽  
Electrochemical Evaluation

In the present research, was studied the electrochemical behavior of AISI 304 stainless steel and Galvanized Steel embedded in Ternary Ecological Concrete made with partial substitution of Portland Cement (PC) by combination of Sugar Cane Bagasse Ash and Silica Fume (SCBA-SF) in 10, 20 and 30% and exposed to a 3.5% solution of Na2SO4 as an aggressive medium. For the design of the concrete mixtures was used ACI 211.1 method. Quality control tests of fresh and hardened concrete were carried out in accordance with the ONNCCE and ASTM standards. The electrochemical evaluation was carried out for a period of 6 months, using the techniques of corrosion potential Ecorr (ASTM C-876-15) and Linear Polarization Resistance-LPR- (ASTM G59) to determine the corrosion rate Icorr. The results indicate that AISI 304 SS has a high corrosion resistance from the curing stage to the end of monitoring, with values of Ecorr lower than -200 mV and negligible corrosion levels with values of Icorr below 0.1 µA/cm2, greater protection is identified in the Ternary Ecological Concrete with replacement of 30% of PC by SCBA-SF.

scholarly journals Physical, Mechanical and Durability Properties of Ecofriendly Ternary Concrete Made with Sugar Cane Bagasse Ash and Silica Fume

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1012
Author(s):  
Laura Landa-Ruiz ◽  
Aldo Landa-Gómez ◽  
José M. Mendoza-Rangel ◽  
Abigail Landa-Sánchez ◽  
Hilda Ariza-Figueroa ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Electrical Resistivity ◽  
Portland Cement ◽  
Physical Properties ◽  
Silica Fume ◽  
Sugar Cane ◽  
Sugar Cane Bagasse ◽  
Conventional Concrete ◽  
Durability Properties ◽  
Sugar Cane Bagasse Ash

In the present investigation, the physical, mechanical and durability properties of six concrete mixtures were evaluated, one of conventional concrete (CC) with 100% Portland cement (PC) and five mixtures of Ecofriendly Ternary Concrete (ETC) made with partial replacement of Portland Cement by combinations of sugar cane bagasse ash (SCBA) and silica fume (SF) at percentages of 10, 20, 30, 40 and 50%. The physical properties of slump, temperature, and unit weight were determined, as well as compressive strength, rebound number, and electrical resistivity as a durability parameter. All tests were carried out according to the ASTM and ONNCCE standards. The obtained results show that the physical properties of ETC concretes are very similar to those of conventional concrete, complying with the corresponding regulations. Compressive strength results of all ETC mixtures showed favorable performances, increasing with aging, presenting values similar to CC at 90 days and greater values at 180 days in the ETC-20 and ETC-30 mixtures. Electrical resistivity results indicated that the five ETC mixtures performed better than conventional concrete throughout the entire monitoring period, increasing in durability almost proportionally to the percentage of substitution of Portland cement by the SCBA–SF combination; the ETC mixture made with 40% replacement had the highest resistivity value, which represents the longest durability. The present electrical resistivity indicates that the durability of the five ETC concretes was greater than conventional concrete. The results show that it is feasible to use ETC, because it meets the standards of quality, mechanical resistance and durability, and offers a very significant and beneficial contribution to the environment due to the use of agro-industrial and industrial waste as partial substitutes up to 50% of CPC, which contributes to reduction in CO2 emissions due to the production of Portland cement, responsible for 8% of total emissions worldwide.

scholarly journals Corrosion of AISI 316 Stainless Steel Embedded in Sustainable Concrete made with Sugar Cane Bagasse Ash (SCBA) Exposed to Marine Environment

2020 ◽  
Vol 5 (2) ◽  
pp. 127-131 ◽  
Author(s):  
Miguel Angel Baltazar-Zamora ◽  
Abigail Landa-Sánchez ◽  
Laura Landa-Ruiz ◽  
Hilda Ariza-Figueroa ◽  
Pedro Gallego-Quintana ◽  
...  
Keyword(s):  
Marine Environment ◽  
Sugar Cane ◽  
Electrochemical Techniques ◽  
Sugar Cane Bagasse ◽  
Partial Replacement ◽  
Cell Potential ◽  
Sustainable Concrete ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316 ◽  
Sugar Cane Bagasse Ash

This research evaluates of the electrochemical behavior of steel bars of the AISI 316 and AISI 1018 embedded in sustainable concrete with partial replacement of CPC 30R by Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF). The electrochemical techniques used to evaluate the corrosion were half-cell potential or Ecorr -ASTM C-876-15- and the Linear Polarization Resistance Technique (LPR) - ASTM G59-. Ecorr and Icorr results indicate after more than 300 days of exposure to the marine environment (3.5% NaCl solution), a high resistance of AISI 316 steel, with Ecorr values lower than -200 mV indicating a 10% probability of corrosion, and a level of negligible corrosion, with values less than 0.1 µA/cm2 in the three mixtures, with sustainable concrete values slightly lower. The results indicate a resistance of more of almost 100 times greater than AISI 316 steel compared to the results obtained in AISI 1018 steel.

Corrosion Behavior 304 and 316 Stainless Steel as Reinforcement in Sustainable Concrete Based on Sugar Cane Bagasse Ash Exposed to Na2SO4

2018 ◽  
Vol 84 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Aldo Emelio Landa-Gómez ◽  
René Croche B ◽  
Sabino Márquez-Montero ◽  
Rafael Villegas Apaez ◽  
H.a. Ariza-Figueroa ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Sugar Cane ◽  
Sugar Cane Bagasse ◽  
Sustainable Concrete ◽  
316 Stainless Steel ◽  
Sugar Cane Bagasse Ash

scholarly journals Corrosion Behavior of AISI 304 Stainless Steel Reinforcements in SCBA-SF Ternary Ecological Concrete Exposed to MgSO4

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2412 ◽  
Author(s):  
Hilda A. Ariza-Figueroa ◽  
Juan Bosch ◽  
Miguel Angel Baltazar-Zamora ◽  
René Croche ◽  
Griselda Santiago-Hurtado ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Silica Fume ◽  
Sugar Cane ◽  
Sugar Cane Bagasse ◽  
304 Stainless Steel ◽  
Partial Substitution ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Sugar Cane Bagasse Ash ◽  
Steel Rebars

In this study, ternary ecological concrete (TEC) mixtures were produced with partial substitution of the ordinary Portland cement (OPC) by 10%, 20%, and 30% of sugar cane bagasse ash (SCBA) and silica fume (SF); a control mixture (100% OPC) was prepared according to ACI 211.1 standard. The studied TEC specimens were reinforced with AISI 304 stainless steel and AISI 1018 carbon steel rebars. TEC reinforced specimens were immersed in two different electrolytes, a control (DI-water) and 3.5 wt.% MgSO4 solution, for 180 days. The electrochemical corrosion was monitored by corrosion potential (Ecorr) according to ASTM C-876-15 standard, and the linear polarization resistance (LPR) technique using ASTM G59 standard. The Ecorr and current density icorr results show that AISI 304 stainless steel rebars have a high corrosion resistance, with icorr values below 0.1 µA/cm2, which is interpreted as a level of negligible corrosion. The best corrosion performance was found for the TEC mixture made with a 20% addition of blend of sugar cane bagasse ash-silica fume (SCBA-SF) to the OPC.

Properties of self-leveling mortars incorporating a high-volume of sugar cane bagasse ash as partial Portland cement replacement

2020 ◽  
Vol 32 ◽  
pp. 101694
Author(s):  
Marcos A.S. Anjos ◽  
Tomaz R. Araújo ◽  
Ruan L.S. Ferreira ◽  
Evilane C. Farias ◽  
Antonio E. Martinelli
Keyword(s):  
Portland Cement ◽  
Sugar Cane ◽  
High Volume ◽  
Sugar Cane Bagasse ◽  
Cement Replacement ◽  
Sugar Cane Bagasse Ash

Flexural behaviour of hybrid fibre (steel fiber and silica fume) reinforced self compacting composite concrete members

2014 ◽  
Vol 11 (4) ◽  
pp. 323-330 ◽  
Author(s):  
S. Arivalagan
Keyword(s):  
Compressive Strength ◽  
Silica Fume ◽  
Steel Fiber ◽  
Volume Fraction ◽  
Hardened Concrete ◽  
Flexural Behaviour ◽  
Self Compacting Concrete ◽  
Engineering Structures ◽  
Conventional Concrete ◽  
Concrete Members

The present day world is witnessing the construction of very challenging and difficult civil engineering structures. Self-compacting concrete (SCC) offers several economic and technical benefits; the use of steel fiber extends its possibilities. Steel fiber acts as a bridge to retard their cracks propagation, and improve several characteristics and properties of the concrete. Therefore, an attempt has been made in this investigation to study the Flexural Behaviour of Steel Fiber Reinforced self compacting concrete incorporating silica fume in the structural elements. The self compacting concrete mixtures have a coarse aggregate replacement of 25% and 35% by weight of silica fume. Totally eight mixers are investigated in which cement content, water content, dosage of superplasticers were all constant. Slump flow time and diameter, J-Ring, V-funnel, and L-Box were performed to assess the fresh properties of the concrete. The variable in this study was percentage of volume fraction (1.0, 1.5) of steel fiber. Finally, five beams were to be casted for study, out of which one was made with conventional concrete, one with SCC (25% silica fume) and other were with SCC (25% silica fume + 1% of steel fiber, 25% silica fume + 1.5% of steel fiber) one with SCC (35% silica fume), and other were SCC (35% Silica fume + 1% of steel fiber, 35% Silica fume + 1.5% of steel fiber). Compressive strength, flexural strength of the concrete was determined for hardened concrete for 7 and 28 days. This investigation is also done to determine the increase the compressive strength by addition of silica fume by varying the percentage.

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