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117599

INFLUENCE OF MIXTURE COMPOSITION ON WASHOUT RESISTANCE, FRESH PROPERTIES AND RELATIVE STRENGTH OF SELF COMPACTING UNDERWATER CONCRETE

Article

Last updated: 23 Jan 2023

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Subjects

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Tags

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

Abstract

Successful design of underwater concrete mixtures must fulfill two basic requirements: adequate flowability to spread into the placing forms without consolidation, and viscosity in order to resist the washing out. In this paper an investigation was carried out to determine the effect of the dosage of anti washout admixture (AWA), water cementitious materials ratio (w/cm),sand to total aggregate ratio(s/a), and the supplementary cementitious materials on the washout resistance, fresh properties and the relative compressive strength of self-compacting underwater concrete (SCUWC). Therefore five groups were prepared for this study. First group studied the effect of the supplementary cementitious materials, second group dealt with the effect of the AWA ratios, third group is concerning with the effect of w/cm ratio, fourth group take into account the effect of s/a ratio and finally fifth group included the effect of cementitious materials. Test results indicate that the concentrations of antiwashout admixture (AWA) have direct effect on washout resistance and relative compressive strength. The washout mass loss can be reduced by using 10% silica fume replacement. Also it can be reduced by decreasing the w/cm and increasing the cement content and that result in greater relative strength.

DOI

10.21608/jesaun.2016.117599

Keywords

Underwater concrete, Self compacting concrete, Antiwashout admixture (AWA), Washout resistance, Silica Fume

Authors

First Name

Abd Elrahman

Last Name

Megahed

MiddleName

-

Affiliation

Civil Eng. Dept., Assuit University

Email

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City

-

Orcid

-

First Name

Ihab

Last Name

Adam

MiddleName

-

Affiliation

Construction Research Institute, National Water Research Center, Egypt

Email

-

City

-

Orcid

-

First Name

Omar

Last Name

Farghal

MiddleName

-

Affiliation

Civil Eng. Dept., Assuit University

Email

omar_farghal222@yahoo.com

City

-

Orcid

-

First Name

Mohamed Omar

Last Name

Sayed

MiddleName

-

Affiliation

Construction Research Institute, National Water Research Center, Egypt

Email

eng_momar2010@yahhoo.com

City

-

Orcid

-

Volume

44

Article Issue

No 3

Related Issue

16845

Issue Date

2016-05-01

Receive Date

2016-03-13

Publish Date

2016-05-01

Page Start

244

Page End

258

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 44_Issue No 3_Pages 244-258.pdf

PDF . 829.1kB

Link

https://jesaun.journals.ekb.eg/article_117599.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=117599

Order

1

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

-

Details

Type

Article

Created At

23 Jan 2023