SELF-HEALING OF CRACKED CONCRETE WITH BACTERIAL APPROACH | ||||
| ERJ. Engineering Research Journal | ||||
| Article 11, Volume 37, Issue 2, April 2014, Page 255-264 PDF (1.14 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2014.66913 | ||||
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| Authors | ||||
| Magdy A. Zahran1; Magdy Attia2; Amal A. Nasser3 | ||||
| 1Faculty of Science, El-Menoufia University | ||||
| 2National Centre of Research, Egypt | ||||
| 3Civil Engineering Department, Faculty of Engineering, El-Menoufia University | ||||
| Abstract | ||||
| Self-healing mechanisms are new techniques used to improve structures durability. Two species of Bacteria (Bacillus subtilis and B. megaterium) were added to rich cement pastes. Cement based bacteria were tested under compression. The two mixes were compared with a control mix to study the bacterial effect on cement paste compressive strength. Ferrocement laminates were cast using the bacterial mixes and the control mix. Laminates were tested under flexural loading until failure. Tested laminates were kept moisturized. Laminates were reloaded after two months. Test results showed that bacterially based systems have the ability to heal and restore the material to its original state when damaged. Bacterially based system seems promising and sustainable. | ||||
| Keywords | ||||
| Self-healing; Sustainable Concrete; Durability; Bacterial Application; ferrocement | ||||
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