@article{isaia_gastaldini_2009,  title={Concrete sustainability with very high amount of fly ash and slag},  volume={2},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952009000300003},  DOI={10.1590/S1983-41952009000300003},  number={3},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={Isaia, G. C. and Gastaldini, A. L. G.},  year={2009},  month={Sep},  pages={244–253} }