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318649

Structural Behavior of Corroded R.C. Beams Contained Nano-Silica

Article

Last updated: 28 Dec 2024

Subjects

-

Tags

Engineering

Abstract

Reinforced concrete structures are considered permanent structures. But reinforced concrete is considered a composite material where reinforcement is embedded in concrete to act as one unit. One of the issues that threatens the area of steel and the bond between concrete and reinforcement is corrosion, especially in marine environments. In marine structures, one of the most attacking materials is chlorides, which cause corrosion. The good quality of concrete has an effective influence on reducing corrosion. In this paper, 9- specimens were fabricated to evaluate the effects of the addition of Nano-Silica on the structural behavior of corroded R.C. beams. 5 concrete mixes with different ratios of Nano-Silica (0%, 1%, 1.5%, and 2% as a replacement for cement weight) were used to cast the specimens. Specimens were divided into 2 groups. Group A consisted of 4-beams that were corroded by a constant electrical current density. Also, Group B consisted of 5-beams, which were corroded by wetting and drying cycles of salty solution. The experimental results included the compressive strength of concrete, steel mass loss, ultimate capacity load, and load deflection behavior. Finally, it was noticed that Nano-Silica improved the structural properties of corroded beams.  

DOI

10.21608/dusj.2023.318649

Keywords

Corrosion, Nano-silica, Beam retrofitting

Authors

First Name

Ahmed

Last Name

Marawan

MiddleName

Ibrahim

Affiliation

Department of Civil Engineering, Faculty of Engineering, Delta University, Gamsa, Egypt.

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

Debaiky

MiddleName

Saeed

Affiliation

Department of Civil Engineering, Faculty of Engineering, Banha University, Banha, Egypt.

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

Abd El-Kareem

MiddleName

Hassan

Affiliation

Department of Civil Engineering, Faculty of Engineering, Banha University, Banha, Egypt.

Email

-

City

-

Orcid

-

Volume

6

Article Issue

2

Related Issue

43625

Issue Date

2023-09-01

Receive Date

2023-09-25

Publish Date

2023-09-01

Page Start

197

Page End

208

Print ISSN

2636-3046

Online ISSN

2636-3054

Link

https://dusj.journals.ekb.eg/article_318649.html

Detail API

https://dusj.journals.ekb.eg/service?article_code=318649

Order

318,649

Type

Original research papers

Type Code

1,769

Publication Type

Journal

Publication Title

Delta University Scientific Journal

Publication Link

https://dusj.journals.ekb.eg/

MainTitle

Structural Behavior of Corroded R.C. Beams Contained Nano-Silica

Details

Type

Article

Created At

28 Dec 2024