SECTION 902 FINE AGGREGATE
902-2 Silica Sand. 902-2.1 Composition: Silica sand shall be composed only of naturally occurring hard, strong, durable, uncoated grains of quartz, reasonably graded from coarse to fine, meeting the following requirements, in percent total weight. Sieve Opening Size Percent Retained Percent Passing No. 4 0 to 5% 95 to