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138529

Shielding Properties of Heavyweight Concrete.

Article

Last updated: 22 Jan 2023

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Tags

Civil Engineering

Abstract

 Heavyweight concrete can be used when particular properties, such as combined high strength and good radiation shielding, are required. Such concrete, using Ilmenite aggregates, can have a density in the range 4.2 t/m3, significantly higher than the density of concretes made with normal aggregate. The present paper deals with sand-llmenite heavy weight concrete, llmenite has been used as coarse aggregate because of high specific gravity compared with gravel. In the present work, 21 mixes were selected to achieve a slump above 5± 2 cm and strength up to 40 MPa at 56 days. The investigation used three levels of fine aggregates to total aggregates ratio (0.25, 0.4, 0.48), three cement content (350, 400, 450 kg/m3) and four levels of llmenite aggregate to total coarse aggregate (gravel + Ilmenite) ratio (0.25, 0.5, 0.75, 1) were used. The investigation provided information on compressive strength, shielding properties and indicated clear benefits from the use of lImenite as a coarse aggregate. For all type of coarse aggregate (gravel, Ilmenite), increasing the amount of fine aggregate leads to reduction in each of compressive strength and absorption co-efficient. Replacing the gravel with llmenite yields about 35% increase in absorption co-efficient. 

DOI

10.21608/bfemu.2021.138529

Keywords

Heavy weight concrete, Llmenite concrete, Heavyweight aggregate, Compressive strength, Shielding concrete, High density concrete

Authors

First Name

Ahmed Hassanien

Last Name

Abdel-Reheem

MiddleName

Ahmed

Affiliation

Structural Engineering Department., Faculty of Engineering., El-Mansoura University., El-Mansoura., Egypt

Email

-

City

Mansoura

Orcid

-

First Name

A.

Last Name

Elagamy

MiddleName

H.

Affiliation

Structural Engineering Department., Faculty of Engineering., El-Mansoura University., El-Mansoura., Egypt

Email

-

City

Mansoura

Orcid

-

First Name

Mohamed Gamal

Last Name

Mahdy

MiddleName

Ibrahim Mohamed

Affiliation

Structural Engineering Department., Faculty of Engineering., El-Mansoura University., El-Mansoura., Egypt

Email

mmahdy@mum.mans.eun.eg

City

Mansoura

Orcid

-

Volume

29

Article Issue

1

Related Issue

19655

Issue Date

2004-03-01

Receive Date

2004-01-11

Publish Date

2021-01-11

Page Start

62

Page End

72

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 29_Issue 1_Pages 62-72.pdf

PDF . 316.5kB

Link

https://bfemu.journals.ekb.eg/article_138529.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=138529

Order

7

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

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Details

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Article

Created At

22 Jan 2023