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Table 1 Properties of natural and recycled aggregate

From: Long-Term Flexural Behaviour of Cracked Reinforced Concrete Beams with Recycled Aggregate

Properties Natural fine aggregate
(FA)
Natural coarse aggregate
(NA)
Recycled coarse aggregate
(CDW)
Specific gravity 2.64 2.62 2.48
Bulk density (kg/m3) 1580 1600 1360
Water absorption ratio (%) 1.06 0.89 4.78
Porosity (%) - 38 46