Towards Sustainable Self-Compacting Concrete: Effect of Recycled Slag Coarse Aggregate on the Fresh Properties of SCC

Table 7

Segregation threshold (Sonebi et al.) and classification of the tested concrete.

		Category for each SSA replacement ratio (average value)
Settlement category	Settlement ratio (%)	0%	Values between 96 and 97 (Cat. 1)
(1) No segregation	>95	25%	Values between 94 and 96 (Cat. 1 and 2)
(2) Mild segregation	88–95	50%	Values between 88 and 91 (Cat. 2)
(3) Notable segregation	72–87	75%	Values between 81 and 89 (Cat 3)
(4) Severe segregation	<71	100%	Values between 76 and 83 (Cat 4)