A COMPARATIVE ANALYSIS OF THE REBOUND HAMMER AND ULTRASONIC PULSE VELOCITY IN TESTING CONCRETE. Nigerian Journal of Technology, [S. l.], v. 31, n. 1, p. 31–39, 2012. DOI: 10.4314/njt.311.135. Disponível em: https://nijotech.com/index.php/nijotech/article/view/135. Acesso em: 19 apr. 2026.