Enzymatic Self-Healing Materials

Author: Shuai Wang

Advisor: Nima Rahbar

Category: Graduate

Our previous project has explored a method to develop a self-healing mechanism in a cementitious matrix using trace amounts of the enzyme Carbonic Anhydrase (CA). CA catalyzes the reaction between Ca2+ ions and atmospheric CO2 to create calcium carbonate crystals with similar thermomechanical properties as the cementitious matrix. This method is capable of self-healing cementitious samples with millimeter-scale flaws within 24-hours. Thus, we develop a functional and enzyme catalyze sand slurry materials (ECM) in the same enzymic method, which performs twice the order of the mechanical properties of cement mortars and other building materials.

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