425688

Bacteria based self healing concrete

Article

Last updated: 04 May 2025

Subjects

-

Tags

Development of Engineering technologies intended for applications to environmental systems (water, air, soil)

Abstract

Two decades of research on concrete self-healing using bacteria, with Sporosarcina pasteurii being one of the best choice due to its fast urease activity and biochemical properties. The optimal dosage is 3kgbacteria beads/m^3 concrete. Bacterial self-healing mortar samples show lower compressive strength, particularly when bacteria are added to concrete water before mixing. Compressive strength decreases with increasing dosage, with a13%,17.14% and 41.6% reduction observed for 3,5and 9kg/m^3 respectively. All of that at an early age and it was found that compressive strength equals control samples at age of 28 days. The bacteria used have proven their efficiency in self-healing concrete to treat cracks up to 2 mm, if they are immersed in water, which makes them of utmost importance in water structures, which is reflected in the calculations of the non-crack section reinforcement. The results indicate that the addition of bacteria in the mixing water before mixing has a great impact on self-healing, its productivity and the effectiveness of calcium carbonate produced by bacteria from its counterpart that uses bacteria beads on its gradually dry condition. Porosity studies showed a reduction in the porosity percentage after self-healing to 0.2% compared to 5.50% in control concrete sample.

DOI

10.21608/sceee.2025.359992.1069

Keywords

Bio Concrete, Self-Healing Concrete, MICP, Microbial induced calcium carbonate precipitation, Bacteria Based

Authors

First Name

Ahmed

Last Name

Roushdy

MiddleName

-

Affiliation

Civil engineering, faculty of engineering, Suez canal university, Ismailia .

Email

ah.roushdy@outlook.com

City

-

Orcid

-

First Name

Kamal

Last Name

Sharobim

MiddleName

Gad

Affiliation

Professor of Properties and Strength of Materials, Civil Department, Faculty of Engineering, Suez Canal University, Ismailia, Egypt

Email

k_sharobim@eng.suez.edu.eg

City

Cairo

Orcid

-

First Name

Ehab

Last Name

Lotfy

MiddleName

Mohamed

Affiliation

Professor of Reinforced Concrete Structures, Civil Department, Faculty of Engineering, Suez Canal University, Ismailia, Egypt

Email

ehablotfy2000@eng.suez.edu.eg

City

Ismailia

Orcid

-

First Name

Abdel-Rahman

Last Name

Naguib

MiddleName

Mohamed

Affiliation

Assistant Professor of Concrete Structures, Civil Department, Faculty of Engineering, Suez Canal University, Ismailia, Egypt

Email

abdelrahman.naguib@eng.suez.edu.eg

City

Ismailia

Orcid

-

Volume

3

Article Issue

2

Related Issue

55481

Issue Date

2025-04-01

Receive Date

2025-03-15

Publish Date

2025-04-30

Page Start

51

Page End

64

Print ISSN

2805-3141

Online ISSN

2805-315X

Link

https://sceee.journals.ekb.eg/article_425688.html

Detail API

http://journals.ekb.eg?_action=service&article_code=425688

Order

425,688

Type

Original Article

Type Code

2,132

Publication Type

Journal

Publication Title

Suez Canal Engineering, Energy and Environmental Science

Publication Link

https://sceee.journals.ekb.eg/

MainTitle

Bacteria based self healing concrete

Details

Type

Article

Created At

04 May 2025