Study on Durability of Concrete under Alkali-Aggregate Reaction

Table 3

Sand grade table.

Nominal size	2.50 mm~5.00 mm	1.25 mm~2.50 mm	630 μm~1.25 mm	315 μm~630 μm	160 μm~315 μm
Grading quality (%)	10	25	25	25	15