Aegis Aggregate

Aegis Aggregate is a regenerative organic construction material unique to the Primus Territory. It has a consistency similar to concrete, and can be used as substitute for such. The discovery of this material can be attributed to Marine Biologist Cleric Dalton Seraphson during his deep ocean exhibitions of the South Harbinger Sea in Y3125. 
Depending on the ratio and mixture, damaged walls of Aegis Aggregate-impregnated structures can regenerate completely in under an hour as long as there is a skeletal structure to guide the process. Scientists have identified that its regenerative properties are thanks to a unique bacteria whose bi-product excretion is an extremely hardened calcite-like substance. The only way to completely destroy a structure made of Aegis Aggregate is to completely remove the skeletal substructure, which is particularly difficult to do as the surrounding concrete is after all, constantly regenerating. This ironically leads to interesting scenarios when trying to make routine maintenance or renovations on public structures. Developers must be careful when they decide to use this super-material as not only is it difficult to work with, but it is difficult to grow and cultivate the necessary precursors which thus makes it cost-prohibitive.