@article{rezende_nascimento_neves_ferreira_2015,  title={The effect of metakaolin on the durability of concrete hollow blocks used in masonry: evaluation of degradation caused by driving rain},  volume={68},  ISSN={0370-4467},  url={https://doi.org/10.1590/0370-44672015680076},  DOI={10.1590/0370-44672015680076},  number={1},  journal={Rem: Revista Escola de Minas},  publisher={Escola de Minas},  author={Rezende, Maria Luiza de Souza and Nascimento, José Wallace Barbosa do and Neves, Gelmires de Araujo and Ferreira, Heber Carlos},  year={2015},  month={Jan},  pages={21–27} }