4116Class V Aggregate for Portland Cement Concrete

4116.01DESCRIPTION

A mixture of fine and coarse particles of feldspathic rocks from an approved source as described in Materials I.M. 409.

4116.02GRADATION

Meet the gradation requirements for gradation No. 7 of the Aggregate Gradation Table, Article 4109.02. 4116.03 A.

QUALITY. For the portion retained on the No. 4 sieve, meet the requirements of Table

4116.031 for coarse aggregate for concrete

Table 4116.03-1: Aggregate Quality Maximum Percent Aggregate Quality Test Method Allowed

B.

Abrasion

AASHTO T 96

A Freeze

Office of Materials Test Method No. Iowa 211, Method A

Clay Lumps

0.5

Materials I.M. 368

For the portion of Class V aggregate passing the No. 4 sieve, meet the requirements of Table 4116.03-2 for fine aggregate for concrete: Table 4116.03-2: Fine Aggregate Quality Fine Aggregate Test Limits Test Method Quality Shale and Coal

2.0 % (maximum)

Materials I.M. 344

Mortar Strength

6000 psi (minimum)

Office of Materials Test Method No. Iowa 212

4116.04COMBINATIONS

Use Class V aggregate for PC concrete only in combination with limestone as specified in Materials I.M. 529. Acquire limestone from sources meeting the specified coarse aggregate durability for PC concrete. A.

Fine Limestone. Meet the gradation requirements for gradation No. 8 of the Aggregate Gradation Table, Article 4109.02.

Granular Leveling Material

B.

4117.03

Coarse Limestone. Meet the requirements of Section 4115.

4116.05CEMENT REQUIREMENTS

For Interstate and Primary projects, use the cement types and substitutions of Table

1 when Class V aggregate is used

Table 4116.05-1: Cement Types and Substitutions Min. Required Substitution

Max. Allowable Substitution

Type I, Type II

20% Class F Fly Ash

25% Class F Fly Ash

Type I, Type II

25% GGBFS

Cement Type

Type IS, IP

---

35% GGBFS 20% Class C Fly Ash