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82610

THERMO-CHEMICAL STABILITY AND MECHANICAL PROPERTIES OF MORTAR MADE WITH CEMENT KILN DUST- BLENDED CEMENT

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Last updated: 25 Dec 2024

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Abstract

The aim of the present investigation is to study the effect of elevated temperature on the
mineralogical structure, chemical characteristics and mechanical properties of mortar prepared
from cement kiln dust -blended cement with proportion 5, 10, 15, 20% of two types of cement
(OPC and BFSC). Cubical samples were cast, molded and cured under tap water for 28 days and
then left in air under normal atmospheric conditions for about three years. These samples were
subjected to elevated temperature: 300, 400, 500 and 600 °C for 2 hrs, then the compressive
strength variation of the hardened samples were studied. Weight loss and X-Ray diffraction
analysis were also used to investigate the phase transformations in these materials. Visual
observation of macro-cracks created due to heating and the carbonation depths were also
identified. Results of this investigation showed that, mortar strength is affected and gradual break
down is observed, at temperatures up to 600°C, as well as with increasing of the blended cement
kiln dust percent. The carbonation depth demonstrated by Ph.Ph. test for OPC-CKD is more than
in case of BFSC-CKD blends especially at high temperature. The hardened mortars made with
BFSC gives a thermal stability more than that in case of OPC samples.

DOI

10.21608/erjm.2004.82610

Keywords

Cement kiln dust, OPC, BFSC, Thermal stability, Surface Cracking, Phase transformation

Authors

First Name

Ayman x

Last Name

Gamal

MiddleName

-

Affiliation

Engineering Materials Dept, Zagazig University, Zagazig, Egypt.

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City

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Orcid

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First Name

M.M

Last Name

Shoaib

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Zagazig University, Egypt.

Email

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City

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Orcid

-

First Name

M.M

Last Name

Balaha

MiddleName

-

Affiliation

Engineering Materials Dept, Zagazig University, Zagazig, Egypt.

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City

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Orcid

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Volume

27

Article Issue

1

Related Issue

12460

Issue Date

2004-01-01

Receive Date

2020-04-15

Publish Date

2004-01-01

Page Start

49

Page End

58

Print ISSN

1110-1180

Online ISSN

3009-6944

Article File

ERJM_Volume 27_Issue 1_Pages 49-58.pdf

PDF . 3.3MB

Link

https://erjm.journals.ekb.eg/article_82610.html

Detail API

https://erjm.journals.ekb.eg/service?article_code=82610

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7

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Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

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

MainTitle

THERMO-CHEMICAL STABILITY AND MECHANICAL PROPERTIES OF MORTAR MADE WITH CEMENT KILN DUST- BLENDED CEMENT

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Article

Created At

22 Jan 2023