Section 4134.  Floodable Backfill Material

4134.01     DESCRIPTION.

Uncrushed natural sand and gravel or natural sand.

4134.02     GRADATION.

A.    For natural sand and gravel use Gradation No. 1 or Gradation No. 35 of the Aggregate Gradation Table, Article 4109.02.

B.    For natural sand use Gradation No. 36 of the Aggregate Gradation Table, Article 4109.02.

Meet requirements for Gradation No. 1, Gradation No. 35, or Gradation No. 36 of the Aggregate Gradation Table, Article 4109.02.