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117623

DEVELOPMENT OF STEEL FIBER-REINFORCED SELF-CONSOLIDATING CONCRETE FOR REPAIRING PURPOSES

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

Fifteen self-consolidating concrete (SCC) as well as five steel fiber-reinforced self-consolidating concrete (SFR-SCC) mixes using full-length crimped steel fibers were developed and tested in order to optimize a suitable (SFR-SCC) mix for repair of beams. Water-cementitious materials (w/cm) ratio, sand/coarse aggregate ratio and presence of basalt dust were the main variables taken into consideration. The test results showed that the mix design for the SCC mixes without steel fibers can be achieved by satisfying the flowability criterion. But for the design of self- consolidating concrete mixes with steel fibers , both the flowability and passing ability criteria must be satisfied. Basalt dust was found to be necessary for SCC mixes without fibers with sand/coarse aggregate ratios of 0.9 and 0.8, and also for developing SCC mixes with crimped steel fibers. SFR-SCC mix with sand/coarse aggregate of 1.1 had satisfactory results in both fresh and hardened properties. SFR-SCC mixes with sand/coarse aggregate of 0.9 and 0.8 did not satisfy fresh properties criteria even with dust/coarse aggregate ratio of 0.4. The suggested SFR-SCC mix was used to repair a beam cracked due to shear stresses. For this purpose, two RC beams were cast and tested under three-point loading. One beam was tested as control beam and the other beam was repaired using the suggested mix. The inclined cracking and ultimate load of the repaired beam were increased by 87.5% and 91% comparing to the control beam, respectively. The flexural stiffness was increased significantly for the repaired beam comparing to the control beam. The test results also showed the great contribution of SFR-SCC in both compression and tension zones. Keywords: full-length crimped steel fibers, self-consolidating concrete, steel fiber-reinforced self-consolidating concrete, shear repairing.

DOI

10.21608/jesaun.2016.117623

Keywords

full-length crimped steel fibers, Self-Consolidating Concrete, steel fiber-reinforced self-consolidating concrete, shear repairing

Authors

First Name

Yehia. A.

Last Name

Hassanean

MiddleName

-

Affiliation

Civil Engineering Department, Assiut University, Assiut, Egypt.

Email

yehiamk@yahoo.com

City

-

Orcid

-

First Name

Mohammed M.

Last Name

Ahmed

MiddleName

-

Affiliation

Civil Engineering Department, Assiut University, Assiut, Egypt.

Email

-

City

-

Orcid

-

First Name

Kamal Abas

Last Name

Assaf

MiddleName

-

Affiliation

Civil Engineering Department, Assiut University, Assiut, Egypt.

Email

kamal_assaf2000@yahoo.com

City

-

Orcid

-

First Name

Amr E. M.

Last Name

Abdallah

MiddleName

-

Affiliation

Civil Engineering Department, Assiut University, Assiut, Egypt.

Email

-

City

-

Orcid

-

Volume

44

Article Issue

No 6

Related Issue

16862

Issue Date

2016-11-01

Receive Date

2016-08-07

Publish Date

2016-11-01

Page Start

675

Page End

689

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 44_Issue No 6_Pages 675-689.pdf

PDF . 1.1MB

Link

https://jesaun.journals.ekb.eg/article_117623.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=117623

Order

2

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

DEVELOPMENT OF STEEL FIBER-REINFORCED SELF-CONSOLIDATING CONCRETE FOR REPAIRING PURPOSES

Details

Type

Article

Created At

23 Jan 2023