803Stabilizer Aggregate

803.1General Description

This section includes the requirements for stabilizer aggregate, Types I through III, and Type IV stabilizer sand. 803.1.01 Related References

AASHTO T 27 AASHTO T 96 GDT 63 SOP 1

803.2Materials

803.2.01 Type I Stabilizer

Use the appropriate type, class, and grade of stabilizer aggregate. Use material of uniform quality that meets the requirements of Section 800, Class A or B aggregate, and SOP 1. Crushed concrete may be used provided it meets the requirements of Section 800 that are applicable to Group 2 aggregates. Ensure the material meets the following gradation: Sieve Size % Passing by Weight 1-1/2 in. (37.5 mm) 100 1 in. (25 mm) 80-100 No. 8 (2.36 mm) 0-5

General Provisions 101 through 150.

Use the following test: Test Method Sieve analysis AASHTO T 27

General Provisions 101 through 150. 1456 1456 1456

803.2.02 Type II Stabilizer Aggregate

Use material that meets the requirements of Section 800, Class A or B aggregate, and SOP 1. Crushed concrete may be used provided it meets the requirements of Section 800 that are applicable to Group 2 aggregates. The aggregate shall: • Not contain overburden soil or disintegrated rock • Have a sand equivalent value of at least 20 for material passing the No. 10 (2 mm) sieve • Meet these gradation requirements: Sieve Size % Passing by Weight 2 in. (50 mm) 100 1-1/2 in. (37.5 mm) 95-100 No. 10 (2 mm) 15-45 No. 200 (75 µm) 0-12

General Provisions 101 through 150.

Test type II stabilizer as follows: Test Method Sieve analysis AASHTO T 27 Sand equivalent GDT 63

General Provisions 101 through 150. 803.2.03 Type III Stabilizer Aggregate

Use material that meets the requirements of Section 800, Class A or B aggregate, and SOP 1. Crushed concrete may be used provided it meets the requirements of Section 800 that are applicable to Group 2 aggregates. Ensure the stabilizer aggregate does not contain soil or decomposed rock and that the Sand Equivalent value of the material passing the No. 10 sieve is not less than 20. The aggregate shall meet these gradation requirements: Sieve Size % Passing by Weight 6 in. (150 mm) 100 2 in. (50 mm) 25-75 No. 10 (2 mm) 15-35 1457 1457 1457

General Provisions 101 through 150.

Test Type III stabilizer as follows: Test Method Sieve analysis AASHTO T 27 Percent wear AASHTO T 96

General Provisions 101 through 150. 803.2.04 Type IV Stabilizer Sand

Make Type IV stabilizer sand from either natural sand, manufactured sand, or any combination of natural and manufactured sands.

aggregate that meets Section 800 requirements and conforms to SOP 1.

and shall also meet these gradation requirements. Sieve Size % Passing by Weight No. 10 (2 mm) 60-100 No. 60 (250 µm) 5-40 No. 200 (75 µm) 0-20

General Provisions 101 through 150.

Test Type IV stabilizer as follows: Test Method Sieve analysis AASHTO T 27 Sand equivalent GDT 63

General Provisions 101 through 150. 1458 1458 1458