@article{batezini_balbo_2015,  title={Study on the hydraulic conductivity by constant and falling head methods for pervious concrete},  volume={8},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952015000300002},  DOI={10.1590/S1983-41952015000300002},  number={3},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={BATEZINI, R. and BALBO, J. T.},  year={2015},  month={May},  pages={248–259} }