scholarly journals Calcined Clay and Limestone as Partial Replacements of Portland Cement: Electrochemical Corrosion Behavior of Low Carbon Steel Rebar as Concrete Reinforcement in Corrosive Environment

2020 ◽  
pp. 12281-12290
Author(s):  
Fengren Guo ◽  
Keyword(s):  
Carbon Steel ◽  
Portland Cement ◽  
Low Carbon Steel ◽  
Electrochemical Corrosion ◽  
Corrosive Environment ◽  
Low Carbon ◽  
Calcined Clay ◽  
Steel Rebar ◽  
Electrochemical Corrosion Behavior ◽  
Concrete Reinforcement

Effect of Nanoparticle Addition in Hybrid Sol-Gel Silane Coating on Corrosion Resistance of Low Carbon Steel

2013 ◽  
Vol 686 ◽  
pp. 244-249 ◽  
Author(s):  
Poovarasi Balan ◽  
Aaron Ng ◽  
Chee Beng Siang ◽  
R.K. Singh Raman ◽  
Eng Seng Chan
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Electrochemical Impedance ◽  
Sol Gel ◽  
Low Carbon Steel ◽  
Electrochemical Corrosion ◽  
Alumina Nanoparticles ◽  
Low Carbon ◽  
Silane Coating ◽  
Sol Gel Films

Chromium pre-treatments of metal have been replaced by silane pre-treatments as more environmental friendly option. Nanoparticles can be added in the silane sol-gel network have been reported to improve corrosion resistance. In this work, the electrochemical corrosion resistance of low carbon steel coated with hybrid organic-inorganic sol-gel film filled with nanoparticles was evaluated. The sol-gel films have been synthesized from 3-glycidoxy-propyl-trimethoxy-silane (3-GPTMS) and tetra-ethyl-ortho-silicate (TEOS) precursors. These films have been impregnated with 300 ppm of silica or alumina nanoparticles. The electrochemical behavior of the coated steel was evaluated by means of electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Equivalent circuit modeling, used for quantifying the EIS measurements showed that sol-gel films containing silica nanoparticles improved the barrier properties of the silane coating. The silica nanoparticle-containing films showed highest initial pore resistance over the five days of immersion in 0.05M NaCl.

Effect of chromium micro-alloying on the corrosion behavior of a low-carbon steel rebar in simulated concrete pore solutions

2017 ◽  
Vol 32 (6) ◽  
pp. 1453-1463 ◽  
Author(s):  
Dan Song ◽  
Jinyang Jiang ◽  
Wei Sun ◽  
Han Ma ◽  
Jianchun Zhang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Steel Rebar
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