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371230

OVERVIEW OF THE DIFFERENT METHODS FOR REPAIRING CONCRETE SLABS

Article

Last updated: 05 Jan 2025

Subjects

-

Tags

Construction Materials, Civil Eng.

Abstract

The objective of this research paper is to explore various techniques for repairing concrete components, specifically slabs. Based on the test results, the MA-UFRP system was found to enhance the flexural strength of the slabs by up to 43%. The average strength of the MA-UFRP reinforced slabs was 18% lower than the EB-FRP reinforced slabs with end anchoring, but only 10% lower than the EB-FRP reinforced slabs without the final anchor. When comparing The midpoint of the span divergence of the slabs reinforced with the MA-UFRP system to those reinforced with EB-FRP without end anchorage, it was discovered that the former exhibited an average increase of 56%, while the latter showed a 5% increase, and the control group exhibited only a 15% decrease.The utilization of FRP systems significantly increased the structural ability of the original slabs for retrofitting purposes, with an enhancement of up to 500% for unreinforced specimens and 200% for steel-reinforced specimens. The average stress and slab stiffness in the shear modulus of concrete when steel rods are present and (FRP) were notably lower, often by more than 30%. Additionally, the use of Georide in repairing concrete slabs has demonstrated positive outcomes. Geogrid-reinforced slabs exhibited a 25% increase in load-carrying capacity, a 6.5% increase in deflection, and a 23% increase in energy absorption. Furthermore, when compared to steel-reinforced slabs, the geogrid-reinforced slabs displayed a 25% increase in load-carrying capacity, a 6.5% increase in deflection, and a 23% increase in energy absorption.

DOI

10.21608/sisj.2024.371230

Keywords

Rpair, FRP, Epoxy, CFRP, NSM, Geo-grid, rigidity, carbon fiber laminates (CFL), Toughness

Authors

First Name

Muhammad

Last Name

Bushnaq

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Sinai University, Alarish, Egypt

Email

mohamed.metwally@su.edu.eg

City

-

Orcid

-

First Name

Mahmoud

Last Name

Hassan Mahmoud

MiddleName

-

Affiliation

Civil Engineering Department, Al-Azhar University, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Ibrahim

Last Name

Mabrouk

MiddleName

-

Affiliation

Civil Engineering Department, Al-Azhar University, Cairo, Egypt

Email

-

City

-

Orcid

-

Volume

1

Article Issue

1

Related Issue

49597

Issue Date

2024-07-01

Receive Date

2024-08-01

Publish Date

2024-07-01

Page Start

4

Page End

16

Print ISSN

3009-6324

Online ISSN

3009-7800

Link

https://sisj.journals.ekb.eg/article_371230.html

Detail API

https://sisj.journals.ekb.eg/service?article_code=371230

Order

371,230

Type

Original Article

Type Code

3,225

Publication Type

Journal

Publication Title

Sinai International Scientific Journal

Publication Link

https://sisj.journals.ekb.eg/

MainTitle

OVERVIEW OF THE DIFFERENT METHODS FOR REPAIRING CONCRETE SLABS

Details

Type

Article

Created At

21 Dec 2024