Abstract :
Concrete is categorized as good if it has a compressive strength that is in accordance with applicable standards, but conditions in the field that are not conducive and working techniques that are not standardized make the quality of the concrete decrease and can even cause cracks. One way to improve the quality of concrete is to make the concrete denser by minimizing air voids in the concrete using admixtures, while the solution for repairing concrete cracks is to use a bacterium mixed into the mortar mix which can create cracks in the concrete. close back. This research was conducted to find out the effect of adding bacteria from vegetable waste extract to Damdex concrete using the self healing concrete. The research method applied is the experimental method, which is the method used to find the effect of certain treatments on other variables under controlled conditions. The treatment referred to in this research is the method of self-healing concrete on concrete with the addition of Damdex. The study was conducted using a cube-shaped test object with a size of 15