Affiliate Member Katherine Callejas Membership since: 2025 Latin America & Caribbean | Currently in: Guatemala Field of activity: Engineering sciences Awards October 2019 grant TWAS Degrees: 2018 Undergraduate Engineering sciences Publications Publications resulting from Research Effect of additions of multiwall carbon nanotubes (MWCNT-COOH and MWCNT-Thiazol) in mechanical compression properties of a cement-based material