Or perhaps we could go back to using lime[0], which has long been known to be naturally self-healing[1], and has been used throughout history to build structures that (literally) stand the test of time[3]. And let's not forget: considerably less CO2 emissions during its lifetime[4].
[1] https://en.wikipedia.org/wiki/Lime_mortar
[2] Self-healing of lime based mortars: microscopy observations on case studies https://repository.tudelft.nl/islandora/object/uuid:ff226ad0...
[3] https://en.wikipedia.org/wiki/Lime_(material)#Roman_concrete
[4] http://ecolime.co.uk/c02-quick-facts/