Aggregates For Concrete
Concrete volume (70% to 85% by mass) and strongly influ-ence the concrete’s freshly mixed and hardened proper-ties, mixture proportions, and economy. fine aggregates (fig. 5-1) generally consist of natural sand or crushed stone with most particles smaller than 5 mm (0.2 in.). coarse aggregates (fig. 5-2) consist of one or a com-chapter.