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Ground Tire (Crumb) Rubber for Use in Asphalt Binders
PRI Provides complete testing for Ground Tire (Crumb) Rubber raw material, including state specific tests to meet individual state requirements.

Please see the Asphalt Binders: Ground Tire Rubber Modified section for more information on evaluations of Ground Tire Rubber Modified binders as well as formulation and performance evaluations.

Below is a listing of services we provide for Ground Tire Rubber. Other testing protocols are available; inquire if the specific test or property is not listed.
Specifications
State DOTs or Other Agencies - Florida FL DOT 919-3; Ground Tire Rubber for Use in Asphalt Rubber Binder (Sp Gr., Moisture, Metal Contaminates, Gradation)

State DOTs or Other Agencies - Florida FL DOT 919-4; (ASTM D 297); Ground Tire Rubber for Use in Asphalt Rubber Binder (Acetone Extract, Hydrocarbon, Ash, Carbon Black & Natural Rubber Contents)
Individual Test Methods or Properties Test Method
Acetone Extract ASTM D 297; Test Method for Rubber Products Chemical Analysis, para 14.1

Ash Content ASTM D 297; Test Method for Rubber Products Chemical Analysis, para 14-51

Carbon Black Content ASTM D 297; Test Method for Rubber Products Chemical Analysis, para 38-39

Fiber & Other Content AZ DOT TM 714

Gradation (AZ DOT) AZ DOT TM 714

Gradation (FL DOT) FL DOT FM 5-559, Section 4; Ground Tire Rubber

Gradation (TX DOT) TX DOT Tex 200-F; Part 2

Metal Contamination FL DOT FM 5-559, Section 5; Ground Tire Rubber

Moisture Content FL DOT FM 5-559, Section 4; Ground Tire Rubber

Natural Rubber ASTM D 297; Test Method for Rubber Products Chemical Analysis, para 11-13

Rubber Hydrocarbon Content ASTM D 297; Test Method for Rubber Products Chemical Analysis, para 24

Specific Gravity AZ DOT TM 714

Specific Gravity FL DOT FM 5-559, Section 4; Ground Tire Rubber

Viscosity, Rotational of GTR Binder FL DOT FM 5-548; Viscosity of asphalt Rubber by Rotational (Dip-n-Read) Viscometer
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