Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs

Widespread applications of reinforced concrete structures have been practiced since the 20th century because of their excellent properties despite their early corrosion degradation. For the control of such a problem, a design strategy of corrosion-resistant environments of the reinforced concrete st...

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Main Authors: Bhattarai Jagadeesh, Somai Madan, Acharya Nirmal, Giri Ajaya, Roka Akash, Phulara Nav Raj
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/78/e3sconf_ri2c2021_02018.pdf
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author Bhattarai Jagadeesh
Somai Madan
Acharya Nirmal
Giri Ajaya
Roka Akash
Phulara Nav Raj
author_facet Bhattarai Jagadeesh
Somai Madan
Acharya Nirmal
Giri Ajaya
Roka Akash
Phulara Nav Raj
author_sort Bhattarai Jagadeesh
collection DOAJ
description Widespread applications of reinforced concrete structures have been practiced since the 20th century because of their excellent properties despite their early corrosion degradation. For the control of such a problem, a design strategy of corrosion-resistant environments of the reinforced concrete structures is highly desirable for extending of a lifetime. The present research work was focused to investigate the effects of the green plant extract-based inhibitors from Vitex negundo and Catharanthus roseus leaves, and one waterproofing chemical (PtS) for controlling the corrosion susceptibility of concrete rebar using a half-cell potential method following the ASTM C876-91 standard. Both plant extracts have good anti-corrosion properties, and hence could be applied as green concrete additives to increase the corrosion resistance of the steel reinforcing bars. The anti-corrosion performance of the steel rebars in concrete is remarkably higher with the additions of 1000 and 2000 ppm plant extracts than the additions of waterproofing chemicals used, based on the shifting of corrosion potential (ϕcorr.) values to a more positive direction than −126 mV (SCE). The results agreed that both the plant extracts could be promising for the formulation of effective, ecofriendly anti-corrosion additives to delay the corrosion susceptibility of the concrete infrastructures.
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spelling doaj.art-fc27ab14c06148c8ad26cb1b1c2cc8f22022-12-21T18:29:41ZengEDP SciencesE3S Web of Conferences2267-12422021-01-013020201810.1051/e3sconf/202130202018e3sconf_ri2c2021_02018Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabsBhattarai Jagadeesh0Somai Madan1Acharya Nirmal2Giri Ajaya3Roka Akash4Phulara Nav Raj5Central Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityWidespread applications of reinforced concrete structures have been practiced since the 20th century because of their excellent properties despite their early corrosion degradation. For the control of such a problem, a design strategy of corrosion-resistant environments of the reinforced concrete structures is highly desirable for extending of a lifetime. The present research work was focused to investigate the effects of the green plant extract-based inhibitors from Vitex negundo and Catharanthus roseus leaves, and one waterproofing chemical (PtS) for controlling the corrosion susceptibility of concrete rebar using a half-cell potential method following the ASTM C876-91 standard. Both plant extracts have good anti-corrosion properties, and hence could be applied as green concrete additives to increase the corrosion resistance of the steel reinforcing bars. The anti-corrosion performance of the steel rebars in concrete is remarkably higher with the additions of 1000 and 2000 ppm plant extracts than the additions of waterproofing chemicals used, based on the shifting of corrosion potential (ϕcorr.) values to a more positive direction than −126 mV (SCE). The results agreed that both the plant extracts could be promising for the formulation of effective, ecofriendly anti-corrosion additives to delay the corrosion susceptibility of the concrete infrastructures.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/78/e3sconf_ri2c2021_02018.pdfcatharanthus roseusgreen-based inhibitorrebar corrosionvitex negundowaterproofing agent
spellingShingle Bhattarai Jagadeesh
Somai Madan
Acharya Nirmal
Giri Ajaya
Roka Akash
Phulara Nav Raj
Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
E3S Web of Conferences
catharanthus roseus
green-based inhibitor
rebar corrosion
vitex negundo
waterproofing agent
title Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
title_full Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
title_fullStr Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
title_full_unstemmed Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
title_short Study on the effects of green-based plant extracts and water-proofers as anti-corrosion agents for steel-reinforced concrete slabs
title_sort study on the effects of green based plant extracts and water proofers as anti corrosion agents for steel reinforced concrete slabs
topic catharanthus roseus
green-based inhibitor
rebar corrosion
vitex negundo
waterproofing agent
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/78/e3sconf_ri2c2021_02018.pdf
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