| Article Details : |
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| | | Article Name : | | | Inhibitory Action of Exudates / Resins Extracts on
the Corrosion of Steel Bar Yield Strength in
Corrosive Media Embedded in Concrete | | Author Name : | | | KANEE SORBARI
PETABA LEMII DONALDSON, CHARLES KENNEDY | | Publisher : | | | Bridge Center | | Article URL : |  | | | Abstract : | | | The end results of steel corrosion are manifested as a reduction
in the bar diameter, wear and tear of the mechanical properties of the
reinforcing steel. This research examined the surface changes and
mechanical properties deterioration of reinforcing steel in concrete
structures built in salt water related environments with the
introduction of milicia excelsa exudates / resins to reinforcing steel
aimed at curbing the negative trends encountered by reinforced
concrete structures in corrosive media with initiated corrosion
acceleration process for 150 days and determined corrosion
probability. Results obtained of flexural strength of beam failure load
averaged percentile collation of -33.1172% against 49.51535% and
47.14752% against non-corroded and milicia excelsa exudates coated
specimens. Midspan deflection average values percentile collation of
88.73239% against -47.0149% and -52.6715% non-corroded and coated
specimens. Average yield strength of 100% with 0.00% percentile
collation. Average ultimate tensile strength with percentile collation of
-13.5952% against 15.7343% and 15.33289% of non-corroded and
coated specimens. Average strain ratios with percentile difference
values of -16.4032% against 19.62187% and 21.19673% of noncorroded and coated specimens. Averaged elongations with percentile
collation of -59.4698% against 146.7295% and 139.8539% of non-corroded and coated specimens. Corrosion properties of spalling and
cracks noticed in non-coated members, Entire experimental results
showed indications of low flexural failure load with high; midspan
deflection, elongation, strain ratio and ultimate yields. Effect of
corrosion on mechanical properties of reinforcing steel not noticed on
non- corroded (controlled) members. Values obtained of non-corroded
are of standard state to corroded members. Coated members showed
low; midspan deflection, elongation and ultimate yields, high flexural
failure load is required and compared to corroded members. Effect of
corrosion not noticed in the mechanical properties of reinforcing steel
experimented. | | Keywords : | | | Corrosion, Corrosion inhibitors, Flexural Strength,
Concrete and Steel Reinforcement |
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