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99802

Effect of Cementitious Materials Composition on Heat Evolution and Strength of Concrete

Article

Last updated: 22 Jan 2023

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Abstract

Large and massive concrete structures with high cementitious content like foundations, tunnels, bridges, dams and hydraulic structures are subjected to cracks generated and developed by internal thermal stresses and damages due to delayed ettringite formation (DEF) associated with the hydration process of cement. The Ondes bridge, Bourgogne bridge and Saint-Maurice de Beynost bridge are international examples of concrete structures damaged by delayed ettringite formation (DEF). Due to the construction expansion in Egypt and the middle east, it was necessary to study the effect of concrete constituents on the evolution of concrete heat of hydration and the differential temperature between the core and the concrete surface, as well as the mechanical properties such as the compressive strength. In this study, the effects of six types of cement, two water-binder ratios, with two different cement contents and supplementary cementitious materials like silica fume, fly ash and metakaolin were studied. The test results of hardened concrete showed that the blast-furnace cement and moderate heat of hydration cement had an obvious effect on the hydration heat rate and concrete compressive strength compared to other tested types. Partial replacement of cement by 50 % fly ash led to a decrease in maximum hydration temperature nearly by 13-14%. Replacement of cement by 15 % metakaolin led to an increase in maximum temperature by 2.9 % comparing to reference cement. A best thermal gradient of mass concrete was observed in case of using moderate heat of hydration cement, as the maximum temperature difference was 17.5℃.

DOI

10.21608/pserj.2020.26323.1039

Keywords

hydration heat, cementitious materials, semi adiabatic, mass concrete, differential temperature

Authors

First Name

Mohammed

Last Name

Belal

MiddleName

H.

Affiliation

Civil Engineering Department, Faculty of Engineering, Damietta

Email

mohammed_belal@du.edu.eg

City

Damietta

Orcid

-

First Name

Shady

Last Name

Ragheb

MiddleName

R.

Affiliation

Department of Civil Engineering,Faculty of Engineering, Port Said University

Email

shadyragheb@hotmail.com

City

Port Said

Orcid

-

First Name

Hassan

Last Name

Hassan

MiddleName

M.

Affiliation

Civil Engineering Department, Faculty of Engineering, Port Said

Email

hassan_ghattass@eng.psu.edu.eg

City

portsaid

Orcid

-

Volume

24

Article Issue

2

Related Issue

17227

Issue Date

2020-09-01

Receive Date

2020-03-21

Publish Date

2020-09-01

Page Start

63

Page End

76

Print ISSN

1110-6603

Online ISSN

2536-9377

Link

https://pserj.journals.ekb.eg/article_99802.html

Detail API

https://pserj.journals.ekb.eg/service?article_code=99802

Order

7

Type

Original Article

Type Code

813

Publication Type

Journal

Publication Title

Port-Said Engineering Research Journal

Publication Link

https://pserj.journals.ekb.eg/

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Details

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Article

Created At

22 Jan 2023