C. D’ONOFRIO, G. FRUNZIO and M. MONACO Universita degli Studi di Napoli “Federico II”

The properties of Neapolitan yellow tuff, a frequently used building material from ancient times to the present, have been determined as specimens from eight different quarries. Apparent density, true density, porosity, compressive strength, modulus of elasticity and Poisson ‘s ratio are reported.