Electrochemical Evaluation on Corrosion Behavior of SAF 2507 Duplex Stainless Steels in Blended Concrete with Metakaolin and ultrafine Slag Admixtures

被引：2

作者：

Xiao, Taoli ^{[1
]}

Du, Chenchen ^{[1
]}

Liu, Yongle ^{[1
]}

机构：

[1] Yangtze Univ, Sch Urban Construct, Jingzhou 434023, Hubei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2021年 / 16卷 / 06期

关键词：

Electrochemical corrosion; Supplementary cementitious materials; Duplex stainless steels; Mechanical properties; REINFORCED-CONCRETE; DURABILITY; CHLORIDE; RESISTANCE; IMPEDANCE; STRENGTH; REBAR; BARS; IONS;

D O I：

10.20964/2021.06.15

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The supplementary cementitious materials can be used in the construction industry as a replacement of Portland cement (PC) to minimize the corrosion of steel rebar. In this work the effect of ultrafine slag (US) and metakaolin as partial replacement of PC on strength concrete and electrochemical corrosion behavior of SAF2507 duplex stainless steel (DSS) rebars were studied. The DSS reinforced concrete specimens were exposed to 3.5wt% NaCl solution. The mechanical results for concrete specimens indicated a considerable increase in compressive strength in the PC blended with both metakaolin and US (15M15US).The electrochemical results indicated that the 15M15US sample had higher value of corrosion resistance than the other samples. The surface morphologies of DSS rebars indicated that narrow pits and low production of corrosion were observed on the 15M15US sample which was in agreement with the results attained from electrochemical tests.

引用

页码：1 / 11

页数：11

共 37 条

[1] Non-destructive measurement of chloride ions concentration in concrete - A comparative analysis of limitations and prospects
Abbas, Yawar
Pargar, Farhad
Koleva, Dessi A.
van Breugel, Klaas
Olthuis, Wouter
van den Berg, Albert
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2018, 174 : 376 - 387
[2] Comparative study of passive films of different stainless steels developed on alkaline medium
Abreu, CM
Cristóbal, MJ
Losada, R
Nóvoa, XR
Pena, G
Pérez, MC
[J]. ELECTROCHIMICA ACTA, 2004, 49 (17-18) : 3049 - 3056
[3] Electrochemistry and surface chemistry of stainless steels in alkaline media simulating concrete pore solutions
Addari, D.
Elsener, B.
Rossi, A.
[J]. ELECTROCHIMICA ACTA, 2008, 53 (27) : 8078 - 8086
[4] Corrosion behavior of duplex stainless steel reinforcement in ternary binder concrete exposed to natural chloride penetration
Alonso, M. C.
Luna, F. J.
Criado, M.
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2019, 199 : 385 - 395
[5] [Anonymous], 2012, WORLD APPL SCI J
[6] [Anonymous], INT J ELECTROCHEM SC, V16
[7] [Anonymous], INT J ELECTROCHEM SC, V16
[8] Ansari A., 2014, J MAT ENV SCI, V5, P81
[9] Corrosion Behavior of AISI 304 Stainless Steel Reinforcements in SCBA-SF Ternary Ecological Concrete Exposed to MgSO4
Ariza-Figueroa, Hilda A.
Bosch, Juan
Angel Baltazar-Zamora, Miguel
Croche, Rene
Santiago-Hurtado, Griselda
Landa-Ruiz, Laura
Mendoza-Rangel, Jose M.
Bastidas, Jose M.
Almeraya-Calderon, Facundo
Bastidas, David M.
[J]. MATERIALS, 2020, 13 (10)
[10] Welded, sandblasted, stainless steel corrugated bars in non-carbonated and carbonated mortars: A 9-year corrosion study
Bautista, A.
Paredes, E. C.
Alvarez, S. M.
Velasco, F.
[J]. CORROSION SCIENCE, 2016, 102 : 363 - 372

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