TITLE:
Outdoor Corrosion Performance Study of Selected Construction Materials in Bonny Island
AUTHORS:
Chinedu Martin Ekuma, Tolulope Charles Ogunyemi
KEYWORDS:
Corrosion, Outdoor Environment, Construction Materials, Weight Loss and Alloys
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.13 No.1,
January
19,
2023
ABSTRACT: Corrosion studies are important due to the enormous
cost involved in the replacement of materials in all kinds of applications. The
outdoor study on corrosion behavior of aluminum sheet, chequered aluminum plate
and zinc alloys roofing sheet commonly used as construction material within a
highly industrial settlement were examined using the gravimetric technique. The
outdoor corrosion of these alloys at different sites was observed via its
exposure to atmospheric conditions, monitored and recorded for 12 months at an
interval of 2 months. Results depicted a process spanning the initial and
intermediate stages of corrosion. The samples of construction materials at
Bonny island showed substantial weight losses and rate of corrosion which
varied largely on percentage of atmospheric humidity, salt precipitations,
industrial aerosols and corrosive gases present at the exposure site as well as
the nature of the material and the presence of protective coating formed during
corrosion process. The rapid rate of deterioration of these materials causes
severe economic importance on the indigenes’ activities including the oil and
gas industries and other construction companies on the island. Thus, there is
urgent need for research concerned with methods to control or prevent excessive
deterioration of metals in Bonny Island.