Beta
233758

IMPROVEMENT OF RIGID PAVEMENT PERFORMANCE USING MICROBIAL AGENT

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Civil engineering

Abstract

Cracking is the most difficult problem for rigid pavement, not only because it affects the mechanical properties, but also because it affects the road's durability and service life. This paper aims to improve the rigid pavement efficiency, as well as construct a bacterial consortium that can make the concrete to repair itself. A concrete slab with dimensions of 750 x 750 x 200 mm was used in a laboratory case study. Bacillus flexus MK-FYT-3 and Bacillus haynesii MK-NW-9 were identified using 16s as Bacillus flexus MK-FYT-3 and Bacillus haynesii MK-NW-9, respectively, for the laboratory bio-concrete mixture and deposited to GenBank under accession numbers MN965692 and MN965693. These isolates were able to grow at 60 °C with an optimum temperature of 40 °C, showed an ideal growth at pH of 10, and were capable of producing CaCO3. Under static loading, the bio-concrete slab performed significantly better than the control one.
 
تعتبرالشروخ من أصعب المشاکل التى تواجه الرصف الصلب ، ليس فقط ألنه يقلل من الخصائص الميکانيکية ، ولکن أي ًضا ألنه يؤثر على متانة الطريق وعمر الخدمة. تهدف هذه الدراسة الى تحسين کفاءة الرصف الصلب ، باإلضافة إلى إنشاء اتحاد بکتيري يمکنه . استخدام بالطات خرسانية بأبعاد العمل مع الخرسانة لمعالجه نفسها ذاتيا 750 × 750 × 200 مم فى عمل دراسة معملية. کما تم ً باألرقام GenBank قبل من Bacillus haynesii MK-NW-9 و Bacillus flexus MK-FYT-3 منً کال وتعريف تصنيف المرجعيه االتيه MN965692 و MN965693 ،على التوالى. اثبتت هذه العزالت قدره على النمو عند 60 درجة مئوية مع درجة حرارة مثالية تبلغ 40 درجة مئوية ، وأظهرت نمًوا أمثل عند 10 pH ، وکانت قادرة على إنتاج کربونات الکالسيوم CaCO3 أوضحت النتائج تحت الحمل االستاتيکى، أن البالطات المعالجه بالبکتيريا تعد أفضل من البالطات الخرسانيه العاديه

DOI

10.21608/auej.2022.233758

Keywords

bacterial consortium, cracks, Rigid pavement, Bacillus flexus, Bacillus haynesii. اتحاد بکتيري ، شروخ ، رصف صلب ، flexus Bacillus، haynesii Bacillus

Authors

First Name

hala

Last Name

abdelfatah

MiddleName

hashem

Affiliation

Civil Engineering, Mataria Institute, High Ministry of Education, Cairo, Egypt.

Email

eng.halahashem@yahoo.com

City

-

Orcid

-

First Name

Waleed.

Last Name

Tawhed

MiddleName

M. F.

Affiliation

Civil Engineering, Mataria School of Engineering, Helwan University, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

Mohamed

Last Name

Ouf

MiddleName

S

Affiliation

Civil Engineering, Mataria School of Engineering, Helwan University, Cairo, Egypt.

Email

drmohamedouf@hotmail.com

City

-

Orcid

-

First Name

Gamal.

Last Name

Elsherbiny

MiddleName

M. E.

Affiliation

Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

Mohamed.

Last Name

Kalaba

MiddleName

H. A.

Affiliation

Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

Abdelzaher.

Last Name

Mostafa

MiddleName

E. A.

Affiliation

Civil Engineering, Mataria School of Engineering, Helwan University, Cairo, Egypt

Email

-

City

-

Orcid

-

Volume

17

Article Issue

63

Related Issue

33543

Issue Date

2022-04-01

Receive Date

2021-11-28

Publish Date

2022-04-01

Page Start

539

Page End

548

Print ISSN

1687-8418

Link

https://jaes.journals.ekb.eg/article_233758.html

Detail API

https://jaes.journals.ekb.eg/service?article_code=233758

Order

6

Type

Original Article

Type Code

706

Publication Type

Journal

Publication Title

Journal of Al-Azhar University Engineering Sector

Publication Link

https://jaes.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023