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127090

Effect of High Temperature on the Mechanical Strength of Bone Powder Concrete Mortar.

Article

Last updated: 22 Jan 2023

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Subjects

-

Tags

Civil Engineering

Abstract

When building materials are subjected to fire and exposed to cooling, some changes may occur in their characteristics; such as phase transformation, weight loss, aggregate cement bond, etc., which directly reflects on its chemical stability and mechanical properties. The effect of high temperature on the compressive and tensile strengths of concrete mortar premixed with bone powder (B.P.) as an addition as weight percent of cement was experimentally investigated. The percentage additions of bone powder were 0% 5%, 10% and 15%. All mortar samples were prepared and cured in tap water for 28 days, then kept in a  laboratory atmosphere until the beginning of the test. The specimens were subjected to different target temperatures of 100, 200, 300, 400, 500 and 600°C. After reaching to the desired target temperature, the specimens were held at that temperature for 4 hours. After heating the specimens were allowed to cool at room temperature until the date of this test. The results showed that all mortar specimens exposed to high temperature suffered a significant decrease in both compressive and tensile strengths. Addition of bone powder for concrete mortar by 5% recorded the highest relative compressive and tensile strength compared to other addition ratios. The mass loss increased with increasing temperature up to 600°C and B.P.%. In addition, at temperature of 600°C, cracks appeared on the surface of specimens.

DOI

10.21608/bfemu.2020.127090

Keywords

Bone powder, Mortar, High temperature, Compressive strength, tensile strength

Authors

First Name

M.

Last Name

Seleem

MiddleName

H.

Affiliation

Assistant Professor., Faculty of Engineering., Zagazig University., Zagazig., Egypt.

Email

-

City

Zagazig

Orcid

-

First Name

M.

Last Name

Balaha

MiddleName

M.

Affiliation

Assistant Professor., Faculty of Engineering., Zagazig University., Zagazig., Egypt.

Email

-

City

Zagazig

Orcid

-

First Name

M.

Last Name

Kotb

MiddleName

H. A.

Affiliation

Professor of Faculty of Engineering., Al-Azhar University., Nasr City., Egypt.

Email

-

City

-

Orcid

-

First Name

H.

Last Name

Abd El-Rahman

MiddleName

-

Affiliation

Professor of Faculty of Engineering., Al-Azhar University., Nasr City., Egypt.

Email

-

City

-

Orcid

-

Volume

33

Article Issue

2

Related Issue

18957

Issue Date

2008-06-01

Receive Date

2008-04-11

Publish Date

2020-12-02

Page Start

78

Page End

88

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 33_Issue 2_Pages 78-88.pdf

PDF . 612.8kB

Link

https://bfemu.journals.ekb.eg/article_127090.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=127090

Order

5

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023