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67130

EXPERIMENTAL INVESTIGATION ON STEEL-CONCRETE BOND STRENGTH IN SELF-COMPACTING CONCRETE

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Last updated: 25 Dec 2024

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Abstract

    The objective of this research was to evaluate the potentials of self-compacting concrete (SCC) mixes to develop bond strength. The investigated mixes incorporated relatively high contents of dolomite powder replacing Portland cement. Either silica fume or fly ash was used along with the dolomite powder in some mixes. Seven mixes were proportioned and cast without vibration in long beams with 10 mm and 16 mm steel dowels fixed vertically along the flowing path. The beams were then broken into discrete test specimens. A push-put configuration was adopted for conducting the bond test. The variation of the ultimate bond strength along the flowing path for the different mixes was evaluated. The steel-concrete bond adequacy was evaluated based on normalized bond strength. The results showed that the bond strength was reduced due to Portland cement replacement with dolomite powder. The addition of either silica fume or fly ash positively hindered further degradation as the dolomite powder content increased. However, all SCC mixes containing up to 30% dolomite powder still yielded bond strengths that were adequate for design purpose. The test results demonstrated inconsistent normalized bond strength in the case of the larger diameter compared to the smaller one.

DOI

10.21608/erjm.2012.67130

Keywords

Self-compacting Concrete, Bond, Push-out, dolomite powder, Silica Fume, Fly Ash

Authors

First Name

M. M.

Last Name

Kamal

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Affiliation

Civil Engineering Dept., Faculty of Engineering, Minoufiya University, Egypt

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Orcid

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First Name

M. A.

Last Name

Safan

MiddleName

-

Affiliation

Civil Engineering Dept., Faculty of Engineering, Minoufiya University, Egypt

Email

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Orcid

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First Name

M. A.

Last Name

Al-Gazzar

MiddleName

-

Affiliation

Water Research Center, Ministry of Irrigation, Al-Kanater, Egypt

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-

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Orcid

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Volume

35

Article Issue

2

Related Issue

10135

Issue Date

2012-04-01

Receive Date

2019-12-31

Publish Date

2012-04-01

Page Start

149

Page End

158

Print ISSN

1110-1180

Online ISSN

3009-6944

Link

https://erjm.journals.ekb.eg/article_67130.html

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https://erjm.journals.ekb.eg/service?article_code=67130

Order

8

Type

Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

https://erjm.journals.ekb.eg/

MainTitle

EXPERIMENTAL INVESTIGATION ON STEEL-CONCRETE BOND STRENGTH IN SELF-COMPACTING CONCRETE

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Article

Created At

22 Jan 2023