A novel method for assessing time zero of cementitious pastes using ultrasonic pulse in corrugated tubes (UPCT)Arthur Aviz Palma e Silva, Karyne Santos, Valdirene Capuzzo, Antonio Bettencourt Ribeiro and João Pereira CustódioMATEC Web Conf., 409 (2025) 03003DOI: https://doi.org/10.1051/matecconf/202540903003