Immobilization of Bacillus sphaericus with Palm Oil Fuel Ash for Self-healing in the Mortar

Crack in concrete or mortar provides preferential accesses for permeation of liquids and gasses which results in degradation of concrete or mortar and structural failure. Basically, this study has used immobilized Bacillus sphaericus ( B.sphaericus ) with palm oil fuel ash as self-healing agent in the mortar. The strength of the mortar was improved throughprecipitation of calcium carbonate by B.sphaericus causing stronger structure due to the...