Section 4110.� Fine Aggregate for Portland Cement Concrete

 

4110.01���� DESCRIPTION.

Natural sands resulting from disintegration of rock through erosional processes. Acquire mineral aggregate from an approved source as described in Materials I.M. 409.

 

4110.02���� GRADATION.

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

 

4110.03���� QUALITY.

 

A.��� Meet the requirements of Table 4110.03-1:

 

Table 4110.03-1: Test Limits and Methods

Fine Aggregate Quality

Test Limits

Test Method

Shale and Coal

2.0% (maximum)

Materials I.M. 344

Mortar Strength

 

6000 psi (41.4 MPa) (minimum)

 

Office of Materials Test Method No. Iowa� 212

 

B.��� The Engineer may require additional mortar strength testing for sources where quality changes.