@article{campos neto_geyer_2019,  title={Effects of using chemical admixture with nanosilica in the consistency and mechanical strength of concrete},  volume={12},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952019000200009},  DOI={10.1590/S1983-41952019000200009},  number={2},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={CAMPOS NETO, T. F. and GEYER, A. L. B.},  year={2019},  month={Mar},  pages={371–385} }