Experimental Analysis of Strength for Self-Healing Concrete
摘要
The most promising technology for creating highly self-healing concrete (SHC) resistant to cracks shortly appears to be the genetically modified Bacillus subtilis known as “Bacilla-Filla,” which is a “custom-designed” bacteria that can embed itself deeply into concrete cracks. They create a mixture of unique bacterial glue and calcium carbonate that solidifies to the same strength as the nearby concrete. This project investigates the effects of adding an incorrect amount of Bacillus subtilis to regular concrete. Additionally, it compares the different characteristics of bacterial and regular concrete, including density, compressive strength, pH, slump, and setting time. The concrete cube cracks are used to make observations regarding the healing of cracks in regular concrete and self-healing concrete. The use of a cylinder to reach the water into the cubes to activate the bacteria and heal the cracks themselves is the process studied in this project. It is evident from observation and research that self-healing concrete has many benefits. When compared to regular concrete, it is found that the self-healing concrete has less slump and more setting time, density, and compressive strength.