Corrosion Rates of Fasteners in Treated Wood Exposed to 100% Relative Humidity

Zelinka, Samuel L.; Rammer, Douglas R.

doi:10.1061/(asce)0899-1561(2009)21:12(758)

Cited by 32 publications

(29 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inhibition of mycelial growth and sporulation of fungal cell due to oxidizing action of ozone was achieved by Liew and Prange (1994). Corrosion rates were assayed by weight loss and corrosion products (Zelinka et al 2009). Due to the failure of the tested fungal growth at 4 ppm at all exposure time, so the other experiments will be held at the significant critical concentration of ozone (3 ppm).…”

Section: Fungal Corrosion Inhibition Evaluation By Ozonementioning

confidence: 99%

Evaluation of ozone for preventing fungal influenced corrosion of reinforced concrete bridges over the River Nile, Egypt

Geweely

2010

Biodegradation

View full text Add to dashboard Cite

Fungal influenced corrosion (FIC) of some corroded sites in three selected bridges [Embaba bridge (E-bridge), Kasr al-Nile-bridge (K-bridge) and University bridge (U-bridge)] located over the River Nile in Egypt were investigated. Six fungal species, belong to 12 fungal genera, were isolated from the corroded reinforced concrete of the three tested bridges. Fourier transform infrared spectroscopy (FTIR) was screened for the most dominant fungal species (Fusarium oxysporium) which showed in all tested bridges that indicated the presence of amine group accompanied with polysaccharides contents. FIC of the most deteriorated bridge (K-bridge) was documented with FTIR. The association of fungal spores with corrosion products was recorded with scanning electron microscope (SEM). Evaluation of ozone for preventing FIC of the K-bridge was carried out by recording the corrosion rate and the corresponding inhibition efficiency (IE%). No mycelial growth with 100% IE was observed at 3 ppm ozone concentration after 120 min exposure time. With longer duration of ozone exposure, the membrane permeability of F. oxysporium was compromised as indicated by protein and nucleic acid leakages accompanied with lipid and tryptophan oxidation. The total intracellular and extracellular proteins of F. oxysporium were run on sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) indicated the increasing of the supernatant protein on the expense of the cellular protein bands with extending ozone exposure time (0-80 min).

show abstract

Section: Fungal Corrosion Inhibition Evaluation By Ozonementioning

confidence: 99%

Evaluation of ozone for preventing fungal influenced corrosion of reinforced concrete bridges over the River Nile, Egypt

Geweely

2010

Biodegradation

View full text Add to dashboard Cite

show abstract

“…In theory, the rate-limiting step could be the diffusion of ions to the metal surface or the oxidation/reduction reaction at the metal surface. Several different experiments have demonstrated that the rate-limiting step is not diffusion but rather the reaction at the metal surface (Baker 1992;Zelinka and Rammer 2009;Zelinka and Stone 2011). This has large implications for corrosion as it implies that the corrosion rate will not decrease with time as it does in atmospheric corrosion .…”

Section: Kdsmentioning

confidence: 99%

“…Theoretically, n should be bounded by 0.5, which represents complete diffusion control, and 1, which represents "activation control," where the rate-determining step is the electron transfer reaction at the metal surface. In wood, n = 1 behavior has been observed by several researchers, which unfortunately represents a worst case scenario (Baker 1992;Zelinka and Rammer 2009;Zelinka and Stone 2011).…”

Section: Mechanism Of Corrosion In Treated Woodmentioning

confidence: 99%

“…Zelinka has published results of several different corrosion tests that were conducted at 27 °C (80 °F) and 100% RH (Zelinka 2007;Zelinka and Rammer 2009;Zelinka et al 2010;Zelinka and Stone 2011). In one study, Zelinka and Rammer (2009) examined the corrosion of five different metal fasteners (carbon steel, hot-dip galvanized steel, electroplated galvanized steel, aluminum, and stainless steel) embedded in wood treated with ACQ to a retention of 4 kg/m -3 .…”

Section: Review Of Corrosion Data From New Wood Preservativesmentioning

confidence: 99%

“…In one study, Zelinka and Rammer (2009) examined the corrosion of five different metal fasteners (carbon steel, hot-dip galvanized steel, electroplated galvanized steel, aluminum, and stainless steel) embedded in wood treated with ACQ to a retention of 4 kg/m -3 . They found that the corrosion rate of hot-dip galvanized steel (in µm/y) was the highest (62) followed by carbon steel (34), aluminum (22), and electroplated galvanized steel (21).…”

Section: Review Of Corrosion Data From New Wood Preservativesmentioning

confidence: 99%

See 2 more Smart Citations