International Journal of Concrete Structures and Materials

Table 4 Natural frequency and calculated E-modulus of the reference and aged specimens.

From: Physical and Mechanical Properties of Cementitious Specimens Exposed to an Electrochemically Derived Accelerated Leaching of Calcium

		Mass (g)		Length (m)		F (kHz)		E (GPa)
		Ref	Aged	Ref	Aged	Ref	Aged	Ref	Aged
Concrete	W/C = 0.48	390	325	0.078	0.078	27.4	21.6	46.5	24.1
Concrete	W/C = 0.62	350	330	0.076	0.075	29.3	22.1	46.5	24.6
Mortar	W/C = 0.5	323	326	0.072	0.076	25.7	17.6	30.4	15.18
Paste	W/C = 0.5	230	220	0.076	0.08	17.6	13.2	11.4	6.24

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