Nondestructive Investigation of Stress-Induced Damage in Concrete

Table 1

Mixture proportions and some mechanical properties of concrete mixture.

Sample Designation	Mixture Proportions C : CA : FA (w/c)∗	Aggregate Proportions						Compressive Strength (MPa/ksi)
		5/16^′′ (8 mm)∗∗	No. 5 (4 mm)	No. 10 (2 mm)	No. 18 (1 mm)	No. 35 (0.5 mm)	No. 50 (0.3 mm)
Test Specimen (C30/C37)	1 : 2.32 : 2.87 (0.55)	Coarse (CA)		Fine (FA)
		25%	20%	14%	10%	11%	21%	42.8/6.2

∗Fractions in weight: C: Cement (Type I), CA: Coarse Aggregates, FA: Fine Aggregates, and (w/c): water to cement ratio.
∗∗The maximum aggregate size was 5/8^′′ or 16 mm.