Characterization of Contact-Type Defects in Mortar Using a Nonlinear Ultrasonic Method

Table 3

Details of mixture proportions and physical properties of the mortar specimens.

Design compressive strength (MPa)	Average density (kg/m^3)	w/c (%)	Unit quantity (kg/m^3)			Average P wave velocity (m/s)
			Water	Cement	Sand
10	1984	60	336	560	1680	3305