Andriamanalina, T.M., Andrianandrasana, M.D., Raharison, M. and Andrianarison, E.R. 2023. Self-Healing Concrete by Microorganisms in the Altered Pozzolan of Madagascar with Calcium from Crab Wastes. American Journal of Education and Technology. 2, 1 (Jan. 2023), 1–9. DOI:https://doi.org/10.54536/ajet.v2i1.1061.