Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Self-healing mortar using different types, content, and concentrations of bacteria to repair cracks
Faculty
Engineering
Year:
2022
Type of Publication:
ZU Hosted
Pages:
Authors:
Selem Saleh Elsayed Ahmed Dawod
Staff Zu Site
Abstract In Staff Site
Journal:
Frattura ed Integrità Strutturale Frattura ed Integrità Strutturale, 59 (2022) 486-513.
Volume:
Keywords :
Self-healing mortar using different types, content,
Abstract:
The creation of cracks, which are the most common cause of structural failure, has a significant impact on the structure's strength and durability. As a result, effective repair and maintenance are vital and unavoidable for treating any of these issues. Self-healing mortar holds promising benefits for reducing the cost of repair as cracks are autonomously repaired without any human intervention. This study investigated the effect of bacteria type, bacteria content, bacteria concentration, and nutrient type on the properties of the self-healing mortar. Three types of bacteria, Bacillus sphaericus, Bacillus Megaterium and Bacillus subtilis encapsulated in calcium alginate beads, were introduced into the mortar. Two concentrations of bacteria, 2× 108 and 2× 109 Colony Forming Units per milliliter (CFU/ml), and different percentages of bacteria of cement weight were selected for the study. In addition, calcium lactate and calcium acetate were used at 0.5% of cement weight as nutrition for bacteria. Tests were performed for compressive strength, bending strength, SEM, EDX, and TGA/DTG. The results show a significant development in the mechanical behavior of mortar, especially with Bacillus Megaterium using a 2.5% bacterial proportion with a concentration 2× 109 CFU/ml. This can be related to the filling of voids and cracks in microbial mortar by calcite, which was confirmed by SEM and EDX
Author Related Publications
Selem Saleh Elsayed Ahmed Dawod, "Mechanical properties of sustainable concrete comprising various wastes", Springer, 2023
More
Selem Saleh Elsayed Ahmed Dawod, "Mechanical behavior of concrete at different levels of compressive strength", Fourth International Conference On Civil And Architecture Engineering, 2002
More
Selem Saleh Elsayed Ahmed Dawod, "Correlation the effect of beam size and crack-depth ratio in concrete by using a modified stress intensity factor", Al-Mansoura Engineering International Conference, --- , Sharm Elsheikh, EGYP, 2003
More
Selem Saleh Elsayed Ahmed Dawod, "Mechanical behavior of high strength concrete reinforced by different types of fibers", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2003
More
Selem Saleh Elsayed Ahmed Dawod, "Sulfate attack on concrete from mixing and curing water", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2004
More
Department Related Publications
Dalia Saber ahmed Elsayed, "Wear and Corrosion Behavior of High-Cr White Cast Iron Alloys in Different Corrosive Media", J Bio Tribo Corros, 2015
More
Mohamed Abdallah Hussin Elmenyawy, ""The effects of graphite and SiC formation on mechanical and wear properties of aluminum–graphite (Al/Gr) composites."", International Conference on Engineering and Technology (ICET 2012) October 10-11, 2012, German University in Cairo,, 2012
More
Mohamed Abdallah Hussin Elmenyawy, ""Influence of (Gr+ Cu) Particles on Wear and Mechanical Properties of Aluminum Based Surface Hybrid Composites Fabricated Via Friction Stir Processing"", Mansoura Engineering Journal ( MEJ ), Faculty of Engineering, Mansoura University, 2017
More
Mohamed Abdallah Hussin Elmenyawy, "The Influence of Wood Flour on Properties of Polypropylene/Wood-Flour Composites""", Mansoura Engineering Journal ( MEJ ), Faculty of Engineering, Mansoura University, 2017
More
Mohamed Abdallah Hussin Elmenyawy, ""Characterization of CNTs /Carbon Nanofibril Composites Via Positron Annihilation"", Engineering Research Journal ( ERJ ),ISSN 1110-1180, Faculty of Engineering, Minoufiya University, 2017
More
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف