Suitability Investigation of Recycled Concrete Aggregates for Concrete Production: An Experimental Case Study

Table 3

Results obtained in characterization of the RCA and NCA.

Aggregate property under evaluation		Unit	RCA	NCA
Bulk density and void ratio	Loose bulk density	kg/m^3	1178	1567
	Compacted bulk density	kg/m^3	1344	1678
	Void ratio	%	38	38
Specific gravity and absorption	Oven-dry specific gravity	—	2.17	2.70
	Saturated-surface-dry specific gravity	—	2.35	2.75
	Apparent specific gravity	—	2.63	2.83
	Absorption	%	7.5	1.78
Shape, size, and texture	Shape	—	Angular	Angular
	Angularity number	—	5	5
	Nominal maximum size	mm	37.5	37.5
	Fineness modulus	—	1.48	2.42
	Texture	—	Rough	Rough
Toughness and abrasion	L. A. abrasion loss	%	32.88	19.11